From ab88d4432d4ed02ba4b4c00c40e563ee8674d807 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 20 May 2026 17:17:40 -0400 Subject: [PATCH 01/53] wip(ack): pull typed-codecs library onto new main Bulk-copy schemas/*, ack.dart, datetime_constraint.dart, discriminated_branch_utils.dart, and supporting types (common_types, context, schema_error, helpers) from claude/ack-typed-codecs-pre-rebase-backup. Delete transformed_schema.dart (backup design replaces it with WrapperSchema mixin + CodecSchema/DefaultSchema/InstanceSchema). Library down from 47 errors to 4 \xe2\x80\x94 remaining failures are in ack_schema_model_builder.dart (TransformedSchema reference, effectiveBranch missing, defaultValue removed from base). Test side still ~200 errors (API drift). Not a working checkpoint yet. --- packages/ack/lib/src/ack.dart | 225 +++--- packages/ack/lib/src/common_types.dart | 7 +- .../src/constraints/datetime_constraint.dart | 83 ++- packages/ack/lib/src/context.dart | 28 +- packages/ack/lib/src/helpers.dart | 2 +- .../ack/lib/src/schemas/any_of_schema.dart | 166 +++-- packages/ack/lib/src/schemas/any_schema.dart | 67 +- .../ack/lib/src/schemas/boolean_schema.dart | 68 +- .../ack/lib/src/schemas/codec_schema.dart | 252 +++++++ .../ack/lib/src/schemas/default_schema.dart | 188 +++++ .../schemas/discriminated_object_schema.dart | 310 ++++++--- packages/ack/lib/src/schemas/enum_schema.dart | 117 ++-- .../extensions/ack_schema_extensions.dart | 129 +--- .../datetime_schema_extensions.dart | 111 +-- .../duration_schema_extensions.dart | 36 +- .../extensions/list_schema_extensions.dart | 33 +- .../extensions/object_schema_extensions.dart | 60 +- .../extensions/string_schema_extensions.dart | 12 +- .../ack/lib/src/schemas/fluent_schema.dart | 69 +- .../ack/lib/src/schemas/instance_schema.dart | 80 +++ packages/ack/lib/src/schemas/list_schema.dart | 168 +++-- packages/ack/lib/src/schemas/num_schema.dart | 211 ++++-- .../ack/lib/src/schemas/object_schema.dart | 416 ++++++++--- packages/ack/lib/src/schemas/schema.dart | 656 ++++++++++++------ packages/ack/lib/src/schemas/schema_type.dart | 186 +---- .../ack/lib/src/schemas/string_schema.dart | 68 +- .../src/schemas/testing/testing_schemas.dart | 37 +- .../lib/src/schemas/transformed_schema.dart | 162 ----- .../ack/lib/src/schemas/wrapper_schema.dart | 156 +++++ .../src/utils/discriminated_branch_utils.dart | 121 +--- .../ack/lib/src/validation/schema_error.dart | 107 ++- 31 files changed, 2826 insertions(+), 1505 deletions(-) create mode 100644 packages/ack/lib/src/schemas/codec_schema.dart create mode 100644 packages/ack/lib/src/schemas/default_schema.dart create mode 100644 packages/ack/lib/src/schemas/instance_schema.dart delete mode 100644 packages/ack/lib/src/schemas/transformed_schema.dart create mode 100644 packages/ack/lib/src/schemas/wrapper_schema.dart diff --git a/packages/ack/lib/src/ack.dart b/packages/ack/lib/src/ack.dart index 396efd79..a3d2354c 100644 --- a/packages/ack/lib/src/ack.dart +++ b/packages/ack/lib/src/ack.dart @@ -1,54 +1,58 @@ +import 'common_types.dart'; import 'constraints/pattern_constraint.dart'; import 'constraints/string_literal_constraint.dart'; -import 'schemas/extensions/ack_schema_extensions.dart'; import 'schemas/extensions/string_schema_extensions.dart'; import 'schemas/schema.dart'; /// The main entry point for creating schemas with the Ack validation library. -/// -/// Provides a fluent API for creating various schema types. final class Ack { - /// Creates a string schema. + /// Creates a string schema. Boundary and runtime are both `String`. static StringSchema string() => const StringSchema(); /// Creates a literal string schema that only accepts the exact [value]. - /// Similar to Zod's `z.literal("value")`. static StringSchema literal(String value) => string().withConstraint(StringLiteralConstraint(value)); - /// Creates an integer schema. + /// Creates an integer schema. Boundary and runtime are both `int`. static IntegerSchema integer() => const IntegerSchema(); - /// Creates a double schema. + /// Creates a double schema. Boundary and runtime are both `double`. static DoubleSchema double() => const DoubleSchema(); - /// Creates a boolean schema. + /// Creates a number schema. Boundary and runtime are both `num`. + static NumberSchema number() => const NumberSchema(); + + /// Creates a boolean schema. Boundary and runtime are both `bool`. static BooleanSchema boolean() => const BooleanSchema(); /// Creates an object schema with the given properties. - /// All properties are required by default unless wrapped with .optional(). static ObjectSchema object( - Map properties, { + Map properties, { bool additionalProperties = false, }) => ObjectSchema(properties, additionalProperties: additionalProperties); /// Creates a discriminated object schema for polymorphic validation. static DiscriminatedObjectSchema discriminated({ required String discriminatorKey, - required Map> schemas, + required Map> schemas, }) => DiscriminatedObjectSchema( discriminatorKey: discriminatorKey, schemas: schemas, ); - /// Creates a list schema with the given item schema. - static ListSchema list(AckSchema itemSchema) { + /// Creates a list schema with the given non-nullable item schema. + /// + /// `Ack.list(...)` models JSON arrays whose items are present values. Use + /// `Ack.any()` for mixed JSON values. Nullable list items are intentionally + /// rejected. + static ListSchema list( + AckSchema itemSchema, + ) { if (itemSchema.isNullable) { - throw ArgumentError( - 'Ack.list(...) does not support nullable item schemas yet.', - ); + assert(_throwNullableListItemSchema(itemSchema)); + throw _nullableListItemSchemaError(itemSchema); } - return ListSchema(itemSchema); + return ListSchema(itemSchema); } /// Creates an enum schema for validating enum values. @@ -60,83 +64,140 @@ final class Ack { string().withConstraint(PatternConstraint.enumString(values)); /// Creates a schema that can be one of many types. - static AnyOfSchema anyOf(List schemas) => AnyOfSchema(schemas); + static AnyOfSchema anyOf(List schemas) => AnyOfSchema(schemas); - /// Creates a schema that accepts any non-null value without type conversion or validation. - /// Useful for dynamic content or when you need maximum flexibility. + /// Creates a schema that accepts any non-null JSON-safe value. + /// + /// Accepted values are finite numbers, strings, booleans, string-keyed maps, + /// and lists recursively composed from those values. Mark the schema nullable + /// to accept `null`. static AnySchema any() => const AnySchema(); - /// Creates a date schema that parses ISO 8601 date strings (YYYY-MM-DD) into DateTime objects. - /// - /// The schema validates the string format before transformation, ensuring only valid - /// date strings are parsed. You can add range constraints using [.min()] and [.max()]. - /// - /// Example: - /// ```dart - /// final schema = Ack.date(); - /// final result = schema.parse("2025-06-15"); // Returns DateTime(2025, 6, 15) - /// - /// // With range validation - /// final futureDate = Ack.date().min(DateTime.now()); - /// final year2025 = Ack.date() - /// .min(DateTime(2025, 1, 1)) - /// .max(DateTime(2025, 12, 31)); - /// ``` - static TransformedSchema date() { - return string() - .date() // Validates ISO 8601 date format (YYYY-MM-DD) first - .transform((s) => DateTime.parse(s)); + /// Creates a schema for a specific Dart instance type [T], with [T] as + /// both boundary and runtime type. + static InstanceSchema instance() => InstanceSchema(); + + /// Creates a universal codec from an [input] schema, with a [decode] + /// function and an [encode] function. The optional [output] schema + /// applies runtime-side invariants. + static CodecSchema codec< + Boundary extends Object, + InputRuntime extends Object, + Runtime extends Object + >({ + required AckSchema input, + required Runtime Function(InputRuntime value) decode, + required InputRuntime Function(Runtime value) encode, + AckSchema? output, + }) { + return CodecSchema.create( + inputSchema: input, + outputSchema: output ?? InstanceSchema(), + decoder: decode, + encoder: encode, + isOptional: input.isOptional, + isNullable: input.isNullable, + ); } - /// Creates a datetime schema that parses ISO 8601 datetime strings into DateTime objects. + /// Bidirectional date codec: ISO 8601 `YYYY-MM-DD` strings ↔ local + /// midnight `DateTime` runtime values. /// - /// The schema validates the string format (including timezone) before transformation. - /// You can add range constraints using [.min()] and [.max()]. - /// - /// Example: - /// ```dart - /// final schema = Ack.datetime(); - /// final result = schema.parse("2025-06-15T10:30:00Z"); // Returns DateTime - /// - /// // With range validation - /// final appointmentSchema = Ack.datetime().min(DateTime.now()); - /// ``` - static TransformedSchema datetime() { - return string() - .datetime() // Validates ISO 8601 datetime format with timezone first - .transform((s) => DateTime.parse(s)); + /// Runtime invariant: the encoded `DateTime` must be local midnight + /// (year/month/day only). Values with non-zero time-of-day fail + /// `safeEncode` and `validateRuntimeWithContext`. + static CodecSchema date() { + return CodecSchema.create( + inputSchema: string().date(), + outputSchema: InstanceSchema().refine( + _isLocalMidnightDate, + message: 'Expected a local DateTime at midnight (00:00:00.000).', + ), + decoder: DateTime.parse, + encoder: _encodeIsoDate, + ); } - /// Creates a schema that parses URI strings into [Uri] objects. - /// - /// The schema validates that the string is an absolute URI with a scheme - /// and host (e.g., `https://example.com`) before transformation. URIs - /// without an authority component (e.g., `mailto:` or `urn:`) are rejected. + /// Bidirectional datetime codec: ISO 8601 datetime strings ↔ UTC + /// `DateTime` runtime values. /// - /// Example: - /// ```dart - /// final schema = Ack.uri(); - /// final result = schema.parse('https://example.com/path?x=1'); - /// ``` - static TransformedSchema uri() { - return string() - .uri() // Validates URI format first - .transform((s) => Uri.parse(s)); + /// Runtime invariant: the encoded `DateTime` must be UTC. Local-time + /// values fail validation; convert with `.toUtc()` before encoding. + static CodecSchema datetime() { + return CodecSchema.create( + inputSchema: string().datetime(), + outputSchema: InstanceSchema().refine( + (value) => value.isUtc, + message: 'Expected a UTC DateTime.', + ), + decoder: DateTime.parse, + encoder: _encodeIsoDateTime, + ); } - /// Creates a schema that parses millisecond integers into [Duration] objects. + /// Bidirectional URI codec. /// - /// You can add range constraints using [.min()] and [.max()]. - /// - /// Example: - /// ```dart - /// final schema = Ack.duration(); - /// final result = schema.parse(1500); // Returns Duration(milliseconds: 1500) + /// Runtime invariant: the `Uri` must have both a scheme and a host + /// (matching the parse-side predicate). + static CodecSchema uri() { + return CodecSchema.create( + inputSchema: string().uri(), + outputSchema: InstanceSchema().refine( + (u) => u.hasScheme && u.host.isNotEmpty, + message: 'Expected an absolute URI with scheme and host.', + ), + decoder: Uri.parse, + encoder: (value) => value.toString(), + ); + } + + /// Bidirectional duration codec: milliseconds ↔ `Duration`. /// - /// // With range validation - /// final timeout = Ack.duration().min(Duration(minutes: 1)).max(Duration(minutes: 2)); - /// ``` - static TransformedSchema duration() { - return integer().transform((ms) => Duration(milliseconds: ms)); + /// Runtime invariant: the `Duration` must be a whole number of + /// milliseconds (sub-millisecond precision is rejected to avoid silent + /// truncation on encode). + static CodecSchema duration() { + return CodecSchema.create( + inputSchema: integer(), + outputSchema: InstanceSchema().refine( + (value) => + value.inMicroseconds % Duration.microsecondsPerMillisecond == 0, + message: 'Expected a whole-millisecond Duration.', + ), + decoder: (ms) => Duration(milliseconds: ms), + encoder: (value) => value.inMilliseconds, + ); } } + +bool _isLocalMidnightDate(DateTime value) { + if (value.isUtc) return false; + return value.hour == 0 && + value.minute == 0 && + value.second == 0 && + value.millisecond == 0 && + value.microsecond == 0; +} + +String _encodeIsoDate(DateTime value) { + final y = value.year.toString().padLeft(4, '0'); + final m = value.month.toString().padLeft(2, '0'); + final d = value.day.toString().padLeft(2, '0'); + return '$y-$m-$d'; +} + +String _encodeIsoDateTime(DateTime value) { + return value.toIso8601String(); +} + +bool _throwNullableListItemSchema(AnyAckSchema itemSchema) { + throw _nullableListItemSchemaError(itemSchema); +} + +ArgumentError _nullableListItemSchemaError(AnyAckSchema itemSchema) { + return ArgumentError.value( + itemSchema, + 'itemSchema', + 'Use non-nullable item schemas for Ack.list.', + ); +} diff --git a/packages/ack/lib/src/common_types.dart b/packages/ack/lib/src/common_types.dart index 1e2787e6..a684cb5c 100644 --- a/packages/ack/lib/src/common_types.dart +++ b/packages/ack/lib/src/common_types.dart @@ -1,4 +1,7 @@ library; -/// Shared map type used by object schemas and parsed values. -typedef MapValue = Map; +/// Canonical JSON map type used for object boundary/runtime values. +typedef JsonMap = Map; + +/// Backwards-compatible alias for [JsonMap]. +typedef MapValue = JsonMap; diff --git a/packages/ack/lib/src/constraints/datetime_constraint.dart b/packages/ack/lib/src/constraints/datetime_constraint.dart index 6613bc78..2aca1390 100644 --- a/packages/ack/lib/src/constraints/datetime_constraint.dart +++ b/packages/ack/lib/src/constraints/datetime_constraint.dart @@ -3,6 +3,9 @@ import 'constraint.dart'; /// Type of date/time comparison operation to perform. enum DateTimeComparisonType { min, max } +/// Boundary format used when serializing date/time JSON Schema constraints. +enum DateTimeConstraintFormat { date, dateTime } + /// A constraint for validating DateTime values against minimum and maximum bounds. /// /// This constraint is specifically designed for DateTime validation and provides @@ -14,10 +17,12 @@ class DateTimeConstraint extends Constraint with Validator, JsonSchemaSpec { final DateTimeComparisonType type; final DateTime reference; + final DateTimeConstraintFormat format; const DateTimeConstraint._({ required this.type, required this.reference, + required this.format, required super.constraintKey, required super.description, }); @@ -31,12 +36,18 @@ class DateTimeConstraint extends Constraint /// constraint.validate(DateTime(2005, 6, 15)); // ✓ Valid /// constraint.validate(DateTime(1999, 12, 31)); // ✗ Invalid /// ``` - factory DateTimeConstraint.min(DateTime date) => DateTimeConstraint._( - type: DateTimeComparisonType.min, - reference: date, - constraintKey: 'datetime_min', - description: 'Must be on or after ${date.toIso8601String()}', - ); + factory DateTimeConstraint.min( + DateTime date, { + DateTimeConstraintFormat format = DateTimeConstraintFormat.dateTime, + }) { + return DateTimeConstraint._( + type: DateTimeComparisonType.min, + reference: date, + format: format, + constraintKey: 'datetime_min', + description: 'Must be on or after ${_formatReference(date, format)}', + ); + } /// Creates a constraint that validates the DateTime is on or before [date] (inclusive). /// @@ -47,12 +58,18 @@ class DateTimeConstraint extends Constraint /// constraint.validate(DateTime(2020, 1, 1)); // ✓ Valid /// constraint.validate(DateTime(2026, 1, 1)); // ✗ Invalid /// ``` - factory DateTimeConstraint.max(DateTime date) => DateTimeConstraint._( - type: DateTimeComparisonType.max, - reference: date, - constraintKey: 'datetime_max', - description: 'Must be on or before ${date.toIso8601String()}', - ); + factory DateTimeConstraint.max( + DateTime date, { + DateTimeConstraintFormat format = DateTimeConstraintFormat.dateTime, + }) { + return DateTimeConstraint._( + type: DateTimeComparisonType.max, + reference: date, + format: format, + constraintKey: 'datetime_max', + description: 'Must be on or before ${_formatReference(date, format)}', + ); + } @override bool isValid(DateTime value) => switch (type) { @@ -67,9 +84,9 @@ class DateTimeConstraint extends Constraint @override String buildMessage(DateTime value) => switch (type) { DateTimeComparisonType.min => - 'Date must be on or after ${reference.toIso8601String()}, got ${value.toIso8601String()}', + 'Date must be on or after ${_formatReference(reference, format)}, got ${value.toIso8601String()}', DateTimeComparisonType.max => - 'Date must be on or before ${reference.toIso8601String()}, got ${value.toIso8601String()}', + 'Date must be on or before ${_formatReference(reference, format)}, got ${value.toIso8601String()}', }; @override @@ -82,9 +99,18 @@ class DateTimeConstraint extends Constraint } @override - // Draft-7 has no standard string-format range keywords. AckSchemaModel - // records this as a warning instead of emitting provider-specific keywords. - Map toJsonSchema() => const {}; + Map toJsonSchema() => + // JSON Schema Draft 2019-09 and later support formatMinimum/formatMaximum + // for validating string formats like dates. + // See: https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.7.3 + switch (type) { + DateTimeComparisonType.min => { + 'formatMinimum': _formatReference(reference, format), + }, + DateTimeComparisonType.max => { + 'formatMaximum': _formatReference(reference, format), + }, + }; @override bool operator ==(Object other) { @@ -94,10 +120,27 @@ class DateTimeConstraint extends Constraint return constraintKey == other.constraintKey && description == other.description && type == other.type && - reference == other.reference; + reference == other.reference && + format == other.format; } @override - int get hashCode => - Object.hash(runtimeType, constraintKey, description, type, reference); + int get hashCode => Object.hash( + runtimeType, + constraintKey, + description, + type, + reference, + format, + ); +} + +String _formatReference(DateTime reference, DateTimeConstraintFormat format) { + return switch (format) { + DateTimeConstraintFormat.date => + '${reference.year.toString().padLeft(4, '0')}-' + '${reference.month.toString().padLeft(2, '0')}-' + '${reference.day.toString().padLeft(2, '0')}', + DateTimeConstraintFormat.dateTime => reference.toIso8601String(), + }; } diff --git a/packages/ack/lib/src/context.dart b/packages/ack/lib/src/context.dart index 945c1097..118e27b1 100644 --- a/packages/ack/lib/src/context.dart +++ b/packages/ack/lib/src/context.dart @@ -2,14 +2,15 @@ import 'package:meta/meta.dart'; import 'schemas/schema.dart'; -/// Represents the context in which a schema validation is occurring. +/// Represents the context in which a schema operation is occurring. @immutable class SchemaContext { final String name; final Object? value; - final AckSchema schema; + final AnyAckSchema schema; final SchemaContext? parent; final String? pathSegment; + final SchemaOperation operation; const SchemaContext({ required this.name, @@ -17,23 +18,15 @@ class SchemaContext { required this.value, this.parent, this.pathSegment, + this.operation = SchemaOperation.parse, }); /// Escapes a JSON Pointer segment per RFC 6901. - /// - /// Per RFC 6901, `~` must be escaped as `~0` and `/` must be escaped as `~1`. static String _escapeJsonPointerSegment(String segment) { return segment.replaceAll('~', '~0').replaceAll('/', '~1'); } /// The full JSON Pointer path (RFC 6901) from root to this context. - /// - /// Returns a JSON Pointer string like `#/user/name` or `#/items/0`. - /// The `#` prefix indicates this is a JSON Pointer reference. - /// Special characters in segments (`~` and `/`) are escaped per RFC 6901. - /// - /// If pathSegment is explicitly set to empty string '', the child inherits - /// the parent's path without adding a new segment. String get path { if (parent == null) { return '#'; @@ -41,7 +34,6 @@ class SchemaContext { final parentPath = parent!.path; - // Empty string pathSegment means "inherit parent path, don't add segment" if (pathSegment == '') { return parentPath; } @@ -49,7 +41,6 @@ class SchemaContext { final segment = pathSegment ?? name; final escapedSegment = _escapeJsonPointerSegment(segment); - // All segments (including array indices) use `/` separator per RFC 6901 return parentPath == '#' ? '#/$escapedSegment' : '$parentPath/$escapedSegment'; @@ -57,15 +48,13 @@ class SchemaContext { /// Creates a child context for nested validation. /// - /// If [pathSegment] is an empty string (''), the child inherits the parent's - /// path without adding a new segment. This is useful for schemas like AnyOf - /// or DiscriminatedObject that should not pollute the JSON Pointer path with - /// internal structure (e.g., avoiding paths like `#/field/anyOf:0`). + /// The child inherits the parent's [operation] unless overridden. SchemaContext createChild({ required String name, - required AckSchema schema, + required AnyAckSchema schema, required Object? value, String? pathSegment, + SchemaOperation? operation, }) { return SchemaContext( name: name, @@ -73,6 +62,7 @@ class SchemaContext { value: value, parent: this, pathSegment: pathSegment, + operation: operation ?? this.operation, ); } @@ -81,6 +71,6 @@ class SchemaContext { final schemaTypeString = schema.schemaTypeName; final valueString = value?.toString() ?? 'null'; - return 'SchemaContext(name: "$name", path: "$path", schema: $schemaTypeString, value: "$valueString")'; + return 'SchemaContext(name: "$name", path: "$path", schema: $schemaTypeString, value: "$valueString", operation: ${operation.name})'; } } diff --git a/packages/ack/lib/src/helpers.dart b/packages/ack/lib/src/helpers.dart index 02b0e79e..26153900 100644 --- a/packages/ack/lib/src/helpers.dart +++ b/packages/ack/lib/src/helpers.dart @@ -1,4 +1,4 @@ -// Re-export shared utilities used across schemas, constraints, and tests. +// Re-export utilities for backward compatibility export 'utils/collection_utils.dart'; export 'utils/default_utils.dart'; export 'utils/discriminated_branch_utils.dart'; diff --git a/packages/ack/lib/src/schemas/any_of_schema.dart b/packages/ack/lib/src/schemas/any_of_schema.dart index 1d3be950..49726c62 100644 --- a/packages/ack/lib/src/schemas/any_of_schema.dart +++ b/packages/ack/lib/src/schemas/any_of_schema.dart @@ -1,34 +1,22 @@ part of 'schema.dart'; -/// Schema for validating against a list of schemas. +/// Schema for validating against a list of schemas (union). /// -/// The input is valid if it matches ANY of the provided schemas. -/// This is useful for union types where a value can be one of several different types. +/// Uses broad `Object`/`Object` typing because Dart does not have first-class +/// union types. /// -/// Example: -/// ```dart -/// final schema = Ack.anyOf([ -/// Ack.string(), -/// Ack.integer(), -/// Ack.boolean(), -/// ]); -/// -/// schema.safeParse('hello'); // Ok -/// schema.safeParse(42); // Ok -/// schema.safeParse(true); // Ok -/// schema.safeParse([]); // Fail - not matching any schema -/// ``` +/// Nullable semantics are symmetric: an `AnyOfSchema` allows null on both +/// parse and encode if [isNullable] is true OR any branch is itself nullable. @immutable -final class AnyOfSchema extends AckSchema - with FluentSchema { - final List schemas; +final class AnyOfSchema extends AckSchema + with FluentSchema { + final List schemas; const AnyOfSchema( this.schemas, { super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }); @@ -36,60 +24,107 @@ final class AnyOfSchema extends AckSchema @override SchemaType get schemaType => SchemaType.anyOf; + bool get _anyBranchNullable => schemas.any((s) => s.isNullable); + + @override + bool get acceptsParseNull => super.acceptsParseNull || _anyBranchNullable; + + @override + bool get acceptsEncodeNull => super.acceptsEncodeNull || _anyBranchNullable; + @override @protected - SchemaResult parseAndValidate( - Object? inputValue, + SchemaResult parseWithContext(Object? value, SchemaContext context) => + _tryBranches(value, context, parse: true); + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, SchemaContext context, - ) { - // NOTE: AnyOfSchema intentionally does NOT use handleNullInput because - // null handling has special semantics for union types: - // - // 1. If a DEFAULT exists: apply it first (consistent with other schemas) - // 2. If NO default: try member schemas first - a nullable member can accept null - // 3. AnyOfSchema's own isNullable is only checked AFTER all members fail - // - // This differs from handleNullInput which checks isNullable before trying validation. - if (inputValue == null && defaultValue != null) { - final clonedDefault = cloneDefault(defaultValue!); - return parseAndValidate(clonedDefault, context); - } + ) => _tryBranches(value, context, parse: false); - // Try all member schemas (including with null input for nullable members) - final errors = []; + SchemaResult _tryBranches( + Object? value, + SchemaContext context, { + required bool parse, + }) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + final errors = []; for (final (index, schema) in schemas.indexed) { - // Branch name for debugging; inherit parent path (no segment pollution) final childContext = context.createChild( name: 'anyOf:$index', schema: schema, - value: inputValue, - pathSegment: '', // Inherit parent path + value: value, + pathSegment: '', ); - - final result = schema.parseAndValidate(inputValue, childContext); - + final result = parse + ? schema.parseWithContext(value, childContext) + : schema.validateRuntimeWithContext(value, childContext); if (result.isOk) { - final validatedValue = result.getOrNull(); - - // Nullable member returned null - pass through - if (validatedValue == null) { - return SchemaResult.ok(null); - } - - // Apply AnyOfSchema's own constraints to non-null values - return applyConstraintsAndRefinements(validatedValue, context); + final v = result.getOrNull(); + if (v == null) return SchemaResult.ok(null); + return applyConstraintsAndRefinements(v, context); } - errors.add(result.getError()); } + return SchemaResult.fail( + SchemaNestedError(errors: errors, context: context), + ); + } - // No member schema matched; check AnyOfSchema's own nullable flag - if (inputValue == null && isNullable) { - return SchemaResult.ok(null); + @override + @protected + SchemaResult encodeWithContext(Object value, SchemaContext context) { + final validated = validateRuntimeWithContext(value, context); + if (validated.isFail) { + return SchemaResult.fail(validated.getError()); } + final runtime = validated.getOrNull(); + if (runtime == null) return SchemaResult.ok(null); - // Return all errors for debugging + final errors = []; + for (final (index, schema) in schemas.indexed) { + final childContext = context.createChild( + name: 'anyOf:$index', + schema: schema, + value: runtime, + pathSegment: '', + operation: SchemaOperation.encode, + ); + try { + // Validate against the branch's runtime first; only attempt encode + // when the value plausibly fits this branch. + final branchValidation = schema.validateRuntimeWithContext( + runtime, + childContext, + ); + if (branchValidation.isFail) { + errors.add(branchValidation.getError()); + continue; + } + final encoded = schema.encodeWithContext(runtime, childContext); + if (encoded.isOk) { + final boundary = encoded.getOrNull(); + if (boundary != null) { + return SchemaResult.ok(boundary); + } + } else { + errors.add(encoded.getError()); + } + } catch (e, st) { + errors.add( + SchemaEncodeError.encoderThrew( + message: 'AnyOf branch $index threw: $e', + context: childContext, + cause: e, + stackTrace: st, + ), + ); + } + } return SchemaResult.fail( SchemaNestedError(errors: errors, context: context), ); @@ -100,28 +135,33 @@ final class AnyOfSchema extends AckSchema bool? isNullable, bool? isOptional, String? description, - Object? defaultValue, List>? constraints, List>? refinements, }) { return AnyOfSchema( - schemas, // schemas are immutable once created + schemas, isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, ); } + @override + Map toJsonSchema() { + return wrapCompositeWithNullable({ + 'anyOf': schemas.map((s) => s.toJsonSchema()).toList(), + if (!isNullable && description != null) 'description': description, + }); + } + @override Map toMap() { return { 'type': schemaType.typeName, 'isNullable': isNullable, 'description': description, - 'defaultValue': defaultValue, 'constraints': constraints.map((c) => c.toMap()).toList(), 'schemas': schemas.length, }; @@ -131,13 +171,13 @@ final class AnyOfSchema extends AckSchema bool operator ==(Object other) { if (identical(this, other)) return true; if (other is! AnyOfSchema) return false; - const listEq = ListEquality(); + const listEq = ListEquality(); return baseFieldsEqual(other) && listEq.equals(schemas, other.schemas); } @override int get hashCode { - const listEq = ListEquality(); + const listEq = ListEquality(); return Object.hash(baseFieldsHashCode, listEq.hash(schemas)); } } diff --git a/packages/ack/lib/src/schemas/any_schema.dart b/packages/ack/lib/src/schemas/any_schema.dart index 6eac24be..9b7d60e2 100644 --- a/packages/ack/lib/src/schemas/any_schema.dart +++ b/packages/ack/lib/src/schemas/any_schema.dart @@ -1,18 +1,13 @@ part of 'schema.dart'; -/// Schema that accepts any non-null value without type conversion or validation. -/// Useful for dynamic content or when you need maximum flexibility. -/// -/// Unlike composite schemas (List, Object, AnyOf, Discriminated), AnySchema -/// supports default values and will emit them in JSON Schema output. +/// Schema that accepts any non-null JSON-safe value. @immutable -final class AnySchema extends AckSchema - with FluentSchema { +final class AnySchema extends AckSchema + with FluentSchema { const AnySchema({ super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }); @@ -20,28 +15,41 @@ final class AnySchema extends AckSchema @override SchemaType get schemaType => SchemaType.any; - /// AnySchema accepts all non-null values, so it overrides parseAndValidate directly. @override @protected - SchemaResult parseAndValidate( - Object? inputValue, + SchemaResult parseWithContext(Object? value, SchemaContext context) => + validateRuntimeWithContext(value, context); + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, SchemaContext context, ) { - // Use centralized null handling - final nullResult = handleNullInput(inputValue, context); + final nullResult = handleNullInput(value, context); if (nullResult != null) return nullResult; - - // After null check, inputValue is guaranteed non-null - // Accept any non-null value as-is, then use centralized constraints and refinements check - return applyConstraintsAndRefinements(inputValue!, context); + if (_jsonSafeOrNull(value) == null) { + return SchemaResult.fail( + SchemaValidationError( + message: + 'Expected a JSON-safe value composed of finite numbers, strings, booleans, lists, and string-keyed maps.', + context: context, + ), + ); + } + return applyConstraintsAndRefinements(value!, context); } + @override + @protected + SchemaResult encodeWithContext(Object value, SchemaContext context) => + encodeAsBoundary(value, context); + @override AnySchema copyWith({ bool? isNullable, bool? isOptional, String? description, - Object? defaultValue, List>? constraints, List>? refinements, }) { @@ -49,12 +57,33 @@ final class AnySchema extends AckSchema isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, ); } + @override + Map toJsonSchema() { + // `Ack.any()` accepts any non-null JSON-safe value at runtime. The + // emitted JSON Schema must NOT accept null unless the schema is + // explicitly marked nullable. Raw `{}` would accept null, so we + // enumerate the non-null JSON types explicitly. + final nonNullBranches = >[ + {'type': 'string'}, + {'type': 'number'}, + {'type': 'integer'}, + {'type': 'boolean'}, + {'type': 'object'}, + {'type': 'array'}, + ]; + + final base = { + 'anyOf': nonNullBranches, + if (description != null) 'description': description, + }; + return wrapCompositeWithNullable(base); + } + @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/lib/src/schemas/boolean_schema.dart b/packages/ack/lib/src/schemas/boolean_schema.dart index 29a1f388..51e5c344 100644 --- a/packages/ack/lib/src/schemas/boolean_schema.dart +++ b/packages/ack/lib/src/schemas/boolean_schema.dart @@ -1,29 +1,13 @@ part of 'schema.dart'; /// Schema for validating boolean values. -/// -/// In loose parsing mode (default), accepts boolean values and -/// strings "true"/"false" (case-insensitive). -/// In strict mode, only accepts actual boolean values. -/// -/// Example: -/// ```dart -/// final isActiveSchema = Ack.boolean(); -/// isActiveSchema.safeParse(true); // Ok -/// isActiveSchema.safeParse('true'); // Ok (loose mode) -/// ``` @immutable -final class BooleanSchema extends AckSchema - with FluentSchema { - @override - final bool strictPrimitiveParsing; - +final class BooleanSchema extends AckSchema + with FluentSchema { const BooleanSchema({ - this.strictPrimitiveParsing = false, super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }); @@ -31,17 +15,43 @@ final class BooleanSchema extends AckSchema @override SchemaType get schemaType => SchemaType.boolean; - /// Creates a new BooleanSchema with strict parsing enabled/disabled - BooleanSchema strictParsing({bool value = true}) => - copyWith(strictPrimitiveParsing: value); + @override + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context) => + validateRuntimeWithContext(value, context); + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + + if (value is! bool) { + return SchemaResult.fail( + _buildTypeMismatch( + expectedType: schemaType, + actualValue: value, + context: context, + ), + ); + } + + return applyConstraintsAndRefinements(value, context); + } + + @override + @protected + SchemaResult encodeWithContext(bool value, SchemaContext context) => + encodeAsBoundary(value, context); @override BooleanSchema copyWith({ - bool? strictPrimitiveParsing, bool? isNullable, bool? isOptional, String? description, - bool? defaultValue, List>? constraints, List>? refinements, }) { @@ -49,22 +59,22 @@ final class BooleanSchema extends AckSchema isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, - strictPrimitiveParsing: - strictPrimitiveParsing ?? this.strictPrimitiveParsing, ); } + @override + Map toJsonSchema() => + buildJsonSchemaWithNullable(typeSchema: {'type': 'boolean'}); + @override bool operator ==(Object other) { if (identical(this, other)) return true; if (other is! BooleanSchema) return false; - return baseFieldsEqual(other) && - strictPrimitiveParsing == other.strictPrimitiveParsing; + return baseFieldsEqual(other); } @override - int get hashCode => Object.hash(baseFieldsHashCode, strictPrimitiveParsing); + int get hashCode => baseFieldsHashCode; } diff --git a/packages/ack/lib/src/schemas/codec_schema.dart b/packages/ack/lib/src/schemas/codec_schema.dart new file mode 100644 index 00000000..2a351ad3 --- /dev/null +++ b/packages/ack/lib/src/schemas/codec_schema.dart @@ -0,0 +1,252 @@ +part of 'schema.dart'; + +/// Codec schema for translating between a boundary value and a runtime value. +/// +/// [Boundary] is the encoded shape and [Runtime] is the Dart application value. +/// The intermediate runtime type produced by [inputSchema] is preserved by +/// [create] and erased inside this concrete wrapper so callers do not have to +/// carry a third public type argument. +@immutable +final class CodecSchema + extends AckSchema + with WrapperSchema> { + final AckSchema inputSchema; + + /// The output schema applied to the runtime value after decoding and before + /// encoding. + final AckSchema outputSchema; + + final Runtime Function(Object value) _decoder; + final Object Function(Runtime value)? _encoder; + final Object _decoderIdentity; + + CodecSchema._({ + required this.inputSchema, + required this.outputSchema, + required Runtime Function(Object value) decoder, + required Object Function(Runtime value)? encoder, + required Object decoderIdentity, + super.isNullable, + super.isOptional, + super.description, + super.constraints, + super.refinements, + }) : _decoder = decoder, + _encoder = encoder, + _decoderIdentity = decoderIdentity; + + /// Creates a codec while preserving the input schema's runtime type. + static CodecSchema create< + Boundary extends Object, + InputRuntime extends Object, + Runtime extends Object + >({ + required AckSchema inputSchema, + required AckSchema outputSchema, + required Runtime Function(InputRuntime value) decoder, + required InputRuntime Function(Runtime value)? encoder, + bool isNullable = false, + bool isOptional = false, + String? description, + List> constraints = const [], + List> refinements = const [], + }) { + return CodecSchema._( + inputSchema: inputSchema, + outputSchema: outputSchema, + decoder: (value) => decoder(value as InputRuntime), + encoder: encoder, + decoderIdentity: decoder, + isNullable: isNullable, + isOptional: isOptional, + description: description, + constraints: constraints, + refinements: refinements, + ); + } + + @override + AnyAckSchema get inner => inputSchema as AnyAckSchema; + + @override + SchemaType get schemaType => inputSchema.schemaType; + + @override + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + + final inputResult = inputSchema.parseWithContext(value, context); + if (inputResult.isFail) { + return SchemaResult.fail(inputResult.getError()); + } + + final intermediate = inputResult.getOrNull(); + if (intermediate == null) { + // Defensive: a well-behaved inputSchema does not return Ok(null) for a + // non-null input. Surface the nullability error as a contract violation. + if (isNullable) return SchemaResult.ok(null); + return failNonNullable(context); + } + + final Runtime runtime; + try { + runtime = _decoder(intermediate); + } catch (e, st) { + return SchemaResult.fail( + SchemaTransformError( + message: 'Codec decode failed: ${e.toString()}', + context: context, + cause: e, + stackTrace: st, + ), + ); + } + + return validateRuntimeWithContext(runtime, context); + } + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + + final outputResult = outputSchema.validateRuntimeWithContext( + value, + context, + ); + if (outputResult.isFail) { + return SchemaResult.fail(outputResult.getError()); + } + + final validated = outputResult.getOrNull(); + if (validated == null) { + // Defensive: a well-behaved outputSchema does not return Ok(null) for a + // non-null input. Surface the nullability error as a contract violation. + if (isNullable) return SchemaResult.ok(null); + return failNonNullable(context); + } + + return applyConstraintsAndRefinements(validated, context); + } + + @override + @protected + SchemaResult encodeWithContext( + Runtime value, + SchemaContext context, + ) { + final encode = _encoder; + if (encode == null) { + return SchemaResult.fail( + SchemaEncodeError.oneWayTransform(context: context), + ); + } + + final validated = validateRuntimeWithContext(value, context); + if (validated.isFail) return SchemaResult.fail(validated.getError()); + final runtime = validated.getOrNull(); + if (runtime == null) return failNonNullableEncode(context); + + final Object intermediate; + try { + intermediate = encode(runtime); + } catch (e, st) { + return SchemaResult.fail( + SchemaEncodeError.encoderThrew( + message: 'Codec encode failed: ${e.toString()}', + context: context, + cause: e, + stackTrace: st, + ), + ); + } + + // Ensure the intermediate matches the input schema's runtime shape before + // encoding to boundary. + final inputValidation = inputSchema.validateRuntimeWithContext( + intermediate, + context, + ); + if (inputValidation.isFail) { + return SchemaResult.fail(inputValidation.getError()); + } + + final validatedInput = inputValidation.getOrNull(); + if (validatedInput == null) return failNonNullableEncode(context); + return inputSchema.encodeWithContext(validatedInput, context); + } + + @override + Map toJsonSchema() { + return applyWrapperJsonSchemaMetadata( + Map.from(inputSchema.toJsonSchema()), + metadata: {if (_encoder == null) 'x-transformed': true}, + ); + } + + /// Returns a copy of this codec with the supplied runtime config replaced. + CodecSchema copyWith({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + return CodecSchema._( + inputSchema: inputSchema, + outputSchema: outputSchema, + decoder: _decoder, + encoder: _encoder, + decoderIdentity: _decoderIdentity, + isNullable: isNullable ?? this.isNullable, + isOptional: isOptional ?? this.isOptional, + description: description ?? this.description, + constraints: constraints ?? this.constraints, + refinements: refinements ?? this.refinements, + ); + } + + @override + @protected + CodecSchema copyWithRuntimeConfig({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + return copyWith( + isNullable: isNullable, + isOptional: isOptional, + description: description, + constraints: constraints, + refinements: refinements, + ); + } + + @override + bool operator ==(Object other) { + if (identical(this, other)) return true; + if (other is! CodecSchema) return false; + return baseFieldsEqual(other) && + inputSchema == other.inputSchema && + outputSchema == other.outputSchema && + identical(_decoderIdentity, other._decoderIdentity) && + identical(_encoder, other._encoder); + } + + @override + int get hashCode => Object.hash( + baseFieldsHashCode, + inputSchema, + outputSchema, + _decoderIdentity.hashCode, + _encoder.hashCode, + ); +} diff --git a/packages/ack/lib/src/schemas/default_schema.dart b/packages/ack/lib/src/schemas/default_schema.dart new file mode 100644 index 00000000..d205aec0 --- /dev/null +++ b/packages/ack/lib/src/schemas/default_schema.dart @@ -0,0 +1,188 @@ +part of 'schema.dart'; + +/// Wraps another schema and supplies a runtime default when the input is +/// null on parse. Object encode injects encoded defaults for missing +/// default-wrapped fields. +@immutable +final class DefaultSchema + extends AckSchema + with WrapperSchema> { + @override + final AckSchema inner; + final Runtime defaultValue; + + DefaultSchema({ + required this.inner, + required this.defaultValue, + super.isNullable, + super.isOptional, + super.description, + }); + + @override + SchemaType get schemaType => inner.schemaType; + + // DefaultSchema is treated as optional/nullable based on inner so callers + // can use it as a property without further annotation. + @override + bool get isNullable => super.isNullable || inner.isNullable; + + @override + bool get isOptional => super.isOptional || inner.isOptional; + + // Constraints and refinements live on the wrapped schema. + @override + List> get constraints => inner.constraints; + + @override + List> get refinements => inner.refinements; + + @override + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context) { + if (value == null) { + return _validateDefaultWithContext(context); + } + return inner.parseWithContext(value, context); + } + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + return inner.validateRuntimeWithContext(value, context); + } + + @override + @protected + SchemaResult encodeWithContext( + Runtime value, + SchemaContext context, + ) { + return inner.encodeWithContext(value, context); + } + + @override + Map toJsonSchema() { + final base = Map.from(inner.toJsonSchema()); + Object? serializedDefault; + // Best-effort: emit default only if it round-trips cleanly to boundary + // AND the boundary value is JSON-safe. Schemas like `Ack.instance()` + // happily round-trip non-JSON Dart objects through their identity + // encode path; emitting those would leak runtime-only types into the + // schema output. + final validatedDefault = _validateDefaultWithContext( + inner._createRootContext( + defaultValue, + debugName: 'default', + operation: SchemaOperation.parse, + ), + ); + if (validatedDefault.isOk) { + final runtimeDefault = validatedDefault.getOrNull(); + if (runtimeDefault != null) { + final encoded = inner.safeEncode(runtimeDefault); + if (encoded.isOk) { + final value = encoded.getOrNull(); + if (value != null) { + final safe = _jsonSafeOrNull(value); + if (safe != null) { + serializedDefault = safe; + } + } + } + } + } + return applyWrapperJsonSchemaMetadata( + base, + serializedDefault: serializedDefault, + ); + } + + /// Returns a copy of this default-wrapped schema with the given fields + /// replaced. + DefaultSchema copyWith({ + AckSchema? inner, + Runtime? defaultValue, + bool? isNullable, + bool? isOptional, + String? description, + }) { + return DefaultSchema( + inner: inner ?? this.inner, + defaultValue: defaultValue ?? this.defaultValue, + isNullable: isNullable ?? super.isNullable, + isOptional: isOptional ?? super.isOptional, + description: description ?? this.description, + ); + } + + @override + @protected + DefaultSchema copyWithRuntimeConfig({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + final updatedInner = constraints == null && refinements == null + ? inner + : inner.withRuntimeConfig( + constraints: constraints, + refinements: refinements, + ); + + return copyWith( + inner: updatedInner, + isNullable: isNullable, + isOptional: isOptional, + description: description, + ); + } + + @override + bool operator ==(Object other) { + if (identical(this, other)) return true; + if (other is! DefaultSchema) return false; + return inner == other.inner && + defaultValue == other.defaultValue && + isNullable == other.isNullable && + isOptional == other.isOptional && + description == other.description; + } + + @override + int get hashCode => + Object.hash(inner, defaultValue, isNullable, isOptional, description); + + SchemaResult _validateDefaultWithContext(SchemaContext context) { + // Defaults are runtime values, not boundary values, so validate via the + // runtime path. `cloneDefault` returns unmodifiable collection copies when + // it can; mutable collection defaults are rejected if the inner schema + // would otherwise return the original reference. + final cloned = cloneDefault(defaultValue); + final clonedSafely = cloned is Runtime && !identical(cloned, defaultValue); + final effective = (cloned is Runtime) ? cloned : defaultValue; + final result = inner.validateRuntimeWithContext(effective, context); + if (result.isOk && + !clonedSafely && + _isCollectionDefault(defaultValue) && + identical(result.getOrNull(), defaultValue)) { + return SchemaResult.fail( + SchemaValidationError( + message: + 'Default collection value for $runtimeType could not be ' + 'cloned safely as $Runtime.', + context: context, + ), + ); + } + return result; + } +} + +bool _isCollectionDefault(Object value) => + value is List || value is Map || value is Set; diff --git a/packages/ack/lib/src/schemas/discriminated_object_schema.dart b/packages/ack/lib/src/schemas/discriminated_object_schema.dart index e49688e2..b7ef73d9 100644 --- a/packages/ack/lib/src/schemas/discriminated_object_schema.dart +++ b/packages/ack/lib/src/schemas/discriminated_object_schema.dart @@ -2,62 +2,70 @@ part of 'schema.dart'; /// Schema for validating a discriminated union of objects. /// -/// Based on a `discriminatorKey` (e.g., 'type'), it uses one of the provided -/// `schemas` to validate the object. -/// -/// Child schemas may be plain [ObjectSchema] branches that return -/// `Map`, or transformed schemas whose base schema is an -/// [ObjectSchema]. All branches must produce the same output type [T]. -/// -/// ```dart -/// final schema = Ack.discriminated( -/// discriminatorKey: 'type', -/// schemas: { -/// 'cat': Ack.object({ -/// 'name': Ack.string(), -/// }).transform((map) => Cat(map['name'] as String)), -/// 'dog': Ack.object({ -/// 'name': Ack.string(), -/// }).transform((map) => Dog(map['name'] as String)), -/// }, -/// ); -/// ``` +/// Branches must produce the same runtime type [T]. Boundary type is +/// [JsonMap]. Encoding selects the first branch whose runtime validation +/// AND encode succeed. Branch encoders must emit the discriminator key. @immutable -final class DiscriminatedObjectSchema extends AckSchema - with FluentSchema> { +final class DiscriminatedObjectSchema + extends AckSchema + with FluentSchema> { final String discriminatorKey; - final Map> schemas; + final Map> schemas; - const DiscriminatedObjectSchema({ + DiscriminatedObjectSchema({ required this.discriminatorKey, - required this.schemas, + required Map> schemas, super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, - }); - - /// Returns the effective schema for [discriminatorValue]. - /// - /// The effective schema includes this union's discriminator property as an - /// exact branch literal, even when the authored branch omitted it. - AckSchema effectiveBranch(String discriminatorValue) { - final branchSchema = schemas[discriminatorValue]; - if (branchSchema == null) { + }) : schemas = Map.unmodifiable(schemas) { + if (discriminatorKey.isEmpty) { throw ArgumentError.value( - discriminatorValue, - 'discriminatorValue', - 'No discriminated branch is registered for this value.', + discriminatorKey, + 'discriminatorKey', + 'must not be empty', ); } - - return effectiveDiscriminatedBranch( - discriminatorKey: discriminatorKey, - discriminatorValue: discriminatorValue, - branchSchema: branchSchema, - ); + if (schemas.isEmpty) { + throw ArgumentError.value(schemas, 'schemas', 'must not be empty'); + } + if (schemas.containsKey('')) { + throw ArgumentError.value( + schemas, + 'schemas', + 'branch keys must not be empty', + ); + } + for (final entry in schemas.entries) { + final label = entry.key; + final base = unwrapDiscriminatedBranchSchema(entry.value); + if (base is! ObjectSchema) { + throw ArgumentError.value( + entry.value, + 'schemas["$label"]', + 'Discriminated branches must be object-backed schemas.', + ); + } + final branchDiscriminator = base.properties[discriminatorKey]; + if (branchDiscriminator == null) { + throw ArgumentError.value( + entry.value, + 'schemas["$label"]', + 'Discriminated branch "$label" must define discriminator key ' + '"$discriminatorKey" with Ack.literal("$label").', + ); + } + if (!hasMatchingDiscriminatorLiteral(branchDiscriminator, label)) { + throw ArgumentError.value( + entry.value, + 'schemas["$label"]', + 'Discriminator key "$discriminatorKey" conflicts with existing ' + 'property in branch "$label".', + ); + } + } } @override @@ -65,49 +73,22 @@ final class DiscriminatedObjectSchema extends AckSchema @override @protected - SchemaResult? handleNullInput(Object? inputValue, SchemaContext context) { - if (inputValue != null) return null; - - if (defaultValue != null) { - final clonedDefault = cloneDefault(defaultValue!); - if (clonedDefault is Map) { - return parseAndValidate(clonedDefault, context); - } - - final safeDefault = clonedDefault is T ? clonedDefault : defaultValue!; - return applyConstraintsAndRefinements(safeDefault, context); - } - - if (isNullable) { - return SchemaResult.ok(null); - } - - return failNonNullable(context); - } - - @override - @protected - SchemaResult parseAndValidate(Object? inputValue, SchemaContext context) { - // Use centralized null handling (including cloned default handling). - final nullResult = handleNullInput(inputValue, context); + SchemaResult parseWithContext(Object? value, SchemaContext context) { + final nullResult = handleNullInput(value, context); if (nullResult != null) return nullResult; - // Type guard - if (inputValue is! Map) { - final actualType = AckSchema.getSchemaType(inputValue); + final mapValue = jsonMapOrNull(value); + if (mapValue == null) { return SchemaResult.fail( - TypeMismatchError( + _buildTypeMismatch( expectedType: schemaType, - actualType: actualType, + actualValue: value, context: context, ), ); } - final mapValue = inputValue is MapValue - ? inputValue - : inputValue.cast(); - final Object? discValueRaw = mapValue[discriminatorKey]; + final discValueRaw = mapValue[discriminatorKey]; if (discValueRaw == null) { final constraintError = ObjectRequiredPropertiesConstraint( @@ -145,7 +126,7 @@ final class DiscriminatedObjectSchema extends AckSchema ); } - final AckSchema? selectedSubSchema = schemas[discValueRaw]; + final selectedSubSchema = schemas[discValueRaw]; if (selectedSubSchema == null) { final allowed = schemas.keys.toList(growable: false); @@ -153,7 +134,6 @@ final class DiscriminatedObjectSchema extends AckSchema allowed, ).validate(discValueRaw); - // Error context for discriminator key, but inherit parent path return SchemaResult.fail( SchemaConstraintsError( constraints: enumError != null ? [enumError] : [], @@ -161,87 +141,187 @@ final class DiscriminatedObjectSchema extends AckSchema name: discriminatorKey, schema: const StringSchema(), value: discValueRaw, - pathSegment: - discriminatorKey, // Point directly to the failing field + pathSegment: discriminatorKey, ), ), ); } - // Validate the selected branch; branch name for debug only - var subSchemaContext = context.createChild( + final subSchemaContext = context.createChild( name: 'when $discriminatorKey="$discValueRaw"', schema: selectedSubSchema, value: mapValue, - pathSegment: '', // Inherit parent path + pathSegment: '', ); - final AckSchema effectiveSubSchema; - try { - effectiveSubSchema = effectiveBranch(discValueRaw); - } on ArgumentError catch (error) { + final baseSubSchema = unwrapDiscriminatedBranchSchema(selectedSubSchema); + if (baseSubSchema is! ObjectSchema) { return SchemaResult.fail( SchemaValidationError( - message: error.message?.toString() ?? error.toString(), + message: 'Discriminated branches must be object-backed schemas', context: subSchemaContext, ), ); } - subSchemaContext = context.createChild( - name: 'when $discriminatorKey="$discValueRaw"', - schema: effectiveSubSchema, - value: mapValue, - pathSegment: '', // Inherit parent path - ); - - final result = effectiveSubSchema.parseAndValidate( + final result = selectedSubSchema.parseWithContext( mapValue, subSchemaContext, ); - if (result.isFail) { - return result.match( - onOk: (_) => throw StateError('Unreachable'), - onFail: (error) => SchemaResult.fail(error), + return SchemaResult.fail(result.getError()); + } + return applyConstraintsAndRefinements(result.getOrThrow()!, context); + } + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + if (value is! T) { + return SchemaResult.fail( + SchemaValidationError( + message: + 'Discriminated runtime is ${value.runtimeType}, expected $T.', + context: context, + ), ); } + return applyConstraintsAndRefinements(value, context); + } - final validatedValue = result.getOrThrow()!; + @override + @protected + SchemaResult encodeWithContext(T value, SchemaContext context) { + final validated = validateRuntimeWithContext(value, context); + if (validated.isFail) { + return SchemaResult.fail(validated.getError()); + } + final runtime = validated.getOrNull(); + if (runtime == null) return SchemaResult.ok(null); - return applyConstraintsAndRefinements(validatedValue, context); + final errors = []; + for (final entry in schemas.entries) { + final discValue = entry.key; + final branchSchema = entry.value; + final branchCtx = context.createChild( + name: 'when $discriminatorKey="$discValue"', + schema: branchSchema, + value: runtime, + pathSegment: '', + operation: SchemaOperation.encode, + ); + try { + final branchValidation = branchSchema.validateRuntimeWithContext( + runtime, + branchCtx, + ); + if (branchValidation.isFail) { + errors.add(branchValidation.getError()); + continue; + } + final encoded = branchSchema.encodeWithContext(runtime, branchCtx); + if (encoded.isOk) { + final boundary = encoded.getOrNull(); + if (boundary != null) { + final emittedDiscriminator = boundary.containsKey(discriminatorKey); + if (!emittedDiscriminator) { + errors.add( + SchemaEncodeError.typeMismatch( + message: + 'Discriminated branch "$discValue" must emit ' + '"$discriminatorKey".', + context: branchCtx, + ), + ); + continue; + } + if (boundary[discriminatorKey] != discValue) { + errors.add( + SchemaEncodeError.typeMismatch( + message: + 'Discriminated branch "$discValue" emitted a ' + 'conflicting "$discriminatorKey" value: ' + '${boundary[discriminatorKey]}.', + context: branchCtx, + ), + ); + continue; + } + return SchemaResult.ok(Map.unmodifiable(boundary)); + } + } else { + errors.add(encoded.getError()); + } + } catch (e, st) { + errors.add( + SchemaEncodeError.encoderThrew( + message: 'Discriminated branch "$discValue" threw: $e', + context: branchCtx, + cause: e, + stackTrace: st, + ), + ); + } + } + return SchemaResult.fail( + SchemaNestedError(errors: errors, context: context), + ); } @override DiscriminatedObjectSchema copyWith({ - String? discriminatorKey, - Map>? schemas, bool? isNullable, bool? isOptional, String? description, - T? defaultValue, List>? constraints, List>? refinements, }) { return DiscriminatedObjectSchema( - discriminatorKey: discriminatorKey ?? this.discriminatorKey, - schemas: schemas ?? this.schemas, + discriminatorKey: discriminatorKey, + schemas: schemas, isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, ); } + @override + Map toJsonSchema() { + final anyOfClauses = >[]; + schemas.forEach((discriminatorValue, branchSchema) { + final subSchemaJson = branchSchema.toJsonSchema(); + subSchemaJson['properties'] = { + ...?(subSchemaJson['properties'] as Map?), + discriminatorKey: {'type': 'string', 'const': discriminatorValue}, + }; + final existingRequired = + (subSchemaJson['required'] as List?)?.cast() ?? []; + subSchemaJson['required'] = [ + discriminatorKey, + ...existingRequired.where((field) => field != discriminatorKey), + ]; + anyOfClauses.add(subSchemaJson); + }); + + return wrapCompositeWithNullable({ + 'anyOf': anyOfClauses, + if (!isNullable && description != null) 'description': description, + }); + } + @override Map toMap() { return { 'type': schemaType.typeName, 'isNullable': isNullable, 'description': description, - 'defaultValue': defaultValue, 'constraints': constraints.map((c) => c.toMap()).toList(), 'discriminatorKey': discriminatorKey, 'schemas': schemas.length, @@ -251,16 +331,16 @@ final class DiscriminatedObjectSchema extends AckSchema @override bool operator ==(Object other) { if (identical(this, other)) return true; - if (other is! DiscriminatedObjectSchema) return false; - const mapEq = MapEquality(); - return baseFieldsEqualErased(other) && + if (other is! DiscriminatedObjectSchema) return false; + const mapEq = MapEquality(); + return baseFieldsEqual(other) && discriminatorKey == other.discriminatorKey && mapEq.equals(schemas, other.schemas); } @override int get hashCode { - const mapEq = MapEquality(); + const mapEq = MapEquality(); return Object.hash( baseFieldsHashCode, discriminatorKey, diff --git a/packages/ack/lib/src/schemas/enum_schema.dart b/packages/ack/lib/src/schemas/enum_schema.dart index 64408d51..3164a023 100644 --- a/packages/ack/lib/src/schemas/enum_schema.dart +++ b/packages/ack/lib/src/schemas/enum_schema.dart @@ -1,9 +1,10 @@ part of 'schema.dart'; -/// Schema for validating enum values. +/// Schema for validating enum values where the boundary is the enum's `.name` +/// (a `String`) and the runtime is the typed enum value. @immutable -final class EnumSchema extends AckSchema - with FluentSchema> { +final class EnumSchema extends AckSchema + with FluentSchema> { final List values; const EnumSchema({ @@ -11,7 +12,6 @@ final class EnumSchema extends AckSchema super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }); @@ -19,53 +19,34 @@ final class EnumSchema extends AckSchema @override SchemaType get schemaType => SchemaType.enum_; - /// EnumSchema uses custom parsing logic that doesn't fit the standard - /// primitive type conversion patterns, so it overrides parseAndValidate directly. @override @protected - SchemaResult parseAndValidate(Object? inputValue, SchemaContext context) { - // Use centralized null handling - final nullResult = handleNullInput(inputValue, context); + SchemaResult parseWithContext(Object? value, SchemaContext context) { + final nullResult = handleNullInput(value, context); if (nullResult != null) return nullResult; - // Custom enum parsing logic - T? parsed; - - // Try exact enum match first - if (inputValue is T && values.contains(inputValue)) { - parsed = inputValue; + if (value is! String) { + return SchemaResult.fail( + _buildTypeMismatch( + expectedType: SchemaType.string, + actualValue: value, + context: context, + ), + ); } - // Try to match by name if input is a string - else if (inputValue is String) { - try { - parsed = values.firstWhere((e) => e.name == inputValue); - } on StateError { - // Expected when no match found - continue to integer check - } catch (e, st) { - // Unexpected error indicates a serious problem - return SchemaResult.fail( - SchemaValidationError( - message: 'Unexpected error matching enum value: ${e.toString()}', - context: context, - cause: e, - stackTrace: st, - ), - ); + + T? parsed; + for (final candidate in values) { + if (candidate.name == value) { + parsed = candidate; + break; } } - // Try to match by index if input is an int - else if (inputValue is int && - inputValue >= 0 && - inputValue < values.length) { - parsed = values[inputValue]; - } if (parsed == null) { - // Build helpful error message with allowed values and suggestions final allowed = values.map((e) => e.name).toList(growable: false); - final inputStr = inputValue.toString(); - final closest = findClosestStringMatch(inputStr, allowed); - final suggestion = closest != null && closest != inputStr + final closest = findClosestStringMatch(value, allowed); + final suggestion = closest != null && closest != value ? ' Did you mean "$closest"?' : ''; @@ -74,7 +55,7 @@ final class EnumSchema extends AckSchema message: 'Invalid enum value. Allowed: ${allowed.map((s) => '"$s"').join(', ')}.$suggestion', context: { - 'received': inputValue, + 'received': value, 'allowedValues': allowed, if (closest != null) 'closestMatchSuggestion': closest, }, @@ -85,31 +66,71 @@ final class EnumSchema extends AckSchema ); } - // Use centralized constraints and refinements check return applyConstraintsAndRefinements(parsed, context); } + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + if (value is! T) { + return SchemaResult.fail( + SchemaValidationError( + message: 'Expected instance of $T, got ${value.runtimeType}', + context: context, + ), + ); + } + if (!values.contains(value)) { + return SchemaResult.fail( + SchemaValidationError( + message: 'Enum value $value is not part of the schema values.', + context: context, + ), + ); + } + return applyConstraintsAndRefinements(value, context); + } + + @override + @protected + SchemaResult encodeWithContext(T value, SchemaContext context) { + final validated = validateRuntimeWithContext(value, context); + if (validated.isFail) return SchemaResult.fail(validated.getError()); + return SchemaResult.ok(value.name); + } + @override EnumSchema copyWith({ - List? values, bool? isNullable, bool? isOptional, String? description, - T? defaultValue, List>? constraints, List>? refinements, }) { - return EnumSchema( - values: values ?? this.values, + return EnumSchema( + values: values, isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, ); } + @override + Map toJsonSchema() { + final enumNames = values.map((e) => e.name).toList(); + + return buildJsonSchemaWithNullable( + typeSchema: {'type': 'string', 'enum': enumNames}, + ); + } + @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/lib/src/schemas/extensions/ack_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/ack_schema_extensions.dart index 1efe399c..8ceb9fd0 100644 --- a/packages/ack/lib/src/schemas/extensions/ack_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/ack_schema_extensions.dart @@ -1,110 +1,43 @@ -import '../../constraints/constraint.dart'; import '../../schemas/schema.dart'; /// Core extensions for all AckSchema types. -/// Provides common functionality like refinement, transformation, and optional marking. -extension AckSchemaExtensions on AckSchema { - /// Adds a custom validation check that runs after all other validations for this schema have passed. +extension AckSchemaExtensions + on AckSchema { + /// Maps the validated runtime value to a new runtime type [R] in a + /// parse-only direction. /// - /// [validate] is a function that receives the parsed value of type [T] and must return `true` if the validation passes, and `false` otherwise. - /// - /// [message] is the custom error message to be used if the validation fails. - AckSchema refine( - bool Function(T value) validate, { - String message = 'The value did not pass the custom validation.', - }) { - final newRefinement = (validate: validate, message: message); - - // Create a new schema instance with the new refinement added to the list. - return copyWith(refinements: [...refinements, newRefinement]); - } - - /// Makes the schema optional - the field can be omitted from an object. - /// - /// This is different from `nullable()`: - /// - `optional()`: Field can be absent from object, but if present, must not be null - /// - `nullable()`: Field must be present in object, but can be null - /// - Both: Field can be absent OR present as null - /// - /// Example: - /// ```dart - /// final schema = Ack.object({ - /// 'required': Ack.string(), // Must be present and non-null - /// 'optional': Ack.string().optional(), // Can be absent, but if present must be non-null - /// 'nullable': Ack.string().nullable(), // Must be present, can be null - /// 'both': Ack.string().optional().nullable(), // Can be absent or null - /// }); - /// ``` - /// - /// This method is idempotent - calling it multiple times returns the same schema if already optional. - AckSchema optional({bool value = true}) { - if (isOptional == value) return this; - return copyWith(isOptional: value); - } - - /// Adds a raw [constraint] to the schema. This is useful for composing - /// declarative constraints in addition to the built-in helpers. - AckSchema constrain(Constraint constraint, {String? message}) { - if (constraint is! Validator) { - throw ArgumentError( - 'Constraint ${constraint.runtimeType} must implement Validator.', - ); - } - - final effectiveConstraint = message == null - ? constraint - : _ConstraintMessageOverride(constraint, message); - - return copyWith(constraints: [...constraints, effectiveConstraint]); - } - - /// Transforms the validated value using the provided transformer function. - /// - /// The [transformer] always receives a non-null `T` value. Even when this - /// schema is nullable, the transformer is only called for non-null values; if - /// the input is `null`, it passes through as `null` without invoking the - /// transformer. - /// - /// This is useful for converting data types or applying business logic - /// transformations without defensively handling `null` inside the callback. - TransformedSchema transform( - R Function(T value) transformer, + /// Encoding this one-way schema fails with a [SchemaEncodeError] whose + /// [SchemaEncodeError.kind] is [SchemaEncodeFailureKind.oneWayTransform]. + CodecSchema transform( + R Function(Runtime value) transformer, ) { - return TransformedSchema( - this, - transformer, + return CodecSchema.create( + inputSchema: this, + outputSchema: InstanceSchema(), + decoder: transformer, + encoder: null, isOptional: isOptional, isNullable: isNullable, ); } -} - -class _ConstraintMessageOverride extends Constraint - with Validator, JsonSchemaSpec { - _ConstraintMessageOverride(this.inner, this.customMessage) - : super(constraintKey: inner.constraintKey, description: inner.description); - - final Constraint inner; - final String customMessage; - - Validator get _validator => inner as Validator; - - @override - bool isValid(T value) => _validator.isValid(value); - - @override - String buildMessage(T value) => customMessage; - - @override - Map buildContext(T value) { - return _validator.buildContext(value); - } - @override - Map toJsonSchema() { - if (inner is JsonSchemaSpec) { - return (inner as JsonSchemaSpec).toJsonSchema(); - } - return const {}; + /// Builds a bidirectional codec on top of this schema. + /// + /// [output] is the runtime-side schema for [R]. It validates decoded values + /// after [decode] and validates runtime values before [encode]. When omitted, + /// [InstanceSchema] checks only the runtime type. + CodecSchema codec({ + required R Function(Runtime value) decode, + required Runtime Function(R value) encode, + AckSchema? output, + }) { + return CodecSchema.create( + inputSchema: this, + outputSchema: output ?? InstanceSchema(), + decoder: decode, + encoder: encode, + isOptional: isOptional, + isNullable: isNullable, + ); } } diff --git a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart index b7b0db4d..fe2939bc 100644 --- a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart @@ -1,63 +1,66 @@ +import '../../constraints/constraint.dart'; import '../../constraints/datetime_constraint.dart'; import '../schema.dart'; -/// Extensions for `TransformedSchema` to add date range validation. -/// -/// These extensions work with schemas created by [Ack.date()] or [Ack.datetime()], -/// which parse ISO 8601 date/datetime strings into DateTime objects. -/// -/// Example: -/// ```dart -/// // Age validation (18+) -/// final eighteenYearsAgo = DateTime.now().subtract(Duration(days: 365 * 18)); -/// final birthdateSchema = Ack.date().max(eighteenYearsAgo); -/// -/// // Date range validation -/// final eventDateSchema = Ack.date() -/// .min(DateTime(2025, 1, 1)) -/// .max(DateTime(2025, 12, 31)); -/// ``` -extension DateTimeSchemaExtensions on TransformedSchema { +/// Extensions for `CodecSchema` to add date range +/// validation. +extension DateTimeSchemaExtensions on CodecSchema { /// Constrains the date to be on or after [minDate] (inclusive). - /// - /// The constraint is applied to the transformed DateTime value, after the - /// string has been validated and parsed. - /// - /// Example: - /// ```dart - /// final schema = Ack.date().min(DateTime(2000, 1, 1)); - /// - /// schema.parse("2005-06-15"); // ✓ Valid - after min - /// schema.parse("2000-01-01"); // ✓ Valid - exactly at min (inclusive) - /// schema.parse("1999-12-31"); // ✗ Fails - before min - /// ``` - TransformedSchema min(DateTime minDate) { - return copyWith( - constraints: [...constraints, DateTimeConstraint.min(minDate)], - ); + CodecSchema min(DateTime minDate) { + final format = _dateTimeConstraintFormat(this); + _validateDateTimeReference(minDate, format); + return _addConstraint(DateTimeConstraint.min(minDate, format: format)); } /// Constrains the date to be on or before [maxDate] (inclusive). - /// - /// The constraint is applied to the transformed DateTime value, after the - /// string has been validated and parsed. - /// - /// Example - 18+ age requirement: - /// ```dart - /// final now = DateTime.now(); - /// final eighteenYearsAgo = DateTime( - /// now.year - 18, - /// now.month, - /// now.day, - /// ); - /// final schema = Ack.date().max(eighteenYearsAgo); - /// - /// schema.parse("2000-01-01"); // ✓ Valid if more than 18 years ago - /// schema.parse("2020-01-01"); // ✗ Fails if less than 18 years ago - /// ``` - TransformedSchema max(DateTime maxDate) { - return copyWith( - constraints: [...constraints, DateTimeConstraint.max(maxDate)], - ); + CodecSchema max(DateTime maxDate) { + final format = _dateTimeConstraintFormat(this); + _validateDateTimeReference(maxDate, format); + return _addConstraint(DateTimeConstraint.max(maxDate, format: format)); + } + + CodecSchema _addConstraint( + Constraint constraint, + ) { + return withRuntimeConfig(constraints: [...constraints, constraint]); + } +} + +DateTimeConstraintFormat _dateTimeConstraintFormat( + CodecSchema schema, +) { + return switch (schema.inputSchema.toJsonSchema()['format']) { + 'date' => DateTimeConstraintFormat.date, + 'date-time' => DateTimeConstraintFormat.dateTime, + _ => DateTimeConstraintFormat.dateTime, + }; +} + +void _validateDateTimeReference( + DateTime reference, + DateTimeConstraintFormat format, +) { + switch (format) { + case DateTimeConstraintFormat.date: + if (reference.isUtc || + reference.hour != 0 || + reference.minute != 0 || + reference.second != 0 || + reference.millisecond != 0 || + reference.microsecond != 0) { + throw ArgumentError.value( + reference, + 'reference', + 'Ack.date() constraints require a local DateTime at midnight.', + ); + } + case DateTimeConstraintFormat.dateTime: + if (!reference.isUtc) { + throw ArgumentError.value( + reference, + 'reference', + 'Ack.datetime() constraints require a UTC DateTime.', + ); + } } } diff --git a/packages/ack/lib/src/schemas/extensions/duration_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/duration_schema_extensions.dart index 3f7af5a2..8af4587f 100644 --- a/packages/ack/lib/src/schemas/extensions/duration_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/duration_schema_extensions.dart @@ -1,34 +1,18 @@ +import '../../constraints/constraint.dart'; import '../../constraints/duration_constraint.dart'; import '../schema.dart'; -/// Extensions for `TransformedSchema` to add range validation. -/// -/// These extensions work with schemas created by [Ack.duration()], which parse -/// integer milliseconds into [Duration] objects. -/// -/// Example: -/// ```dart -/// // Timeout validation -/// final timeoutSchema = Ack.duration().min(Duration(minutes: 1)).max(Duration(hours: 1)); -/// ``` -extension DurationSchemaExtensions on TransformedSchema { +/// Extensions for `CodecSchema` to add range validation. +extension DurationSchemaExtensions on CodecSchema { /// Constrains the duration to be on or after [minDuration] (inclusive). - /// - /// The constraint is applied to the transformed Duration value, after the - /// integer has been validated and converted. - TransformedSchema min(Duration minDuration) { - return copyWith( - constraints: [...constraints, DurationConstraint.min(minDuration)], - ); - } + CodecSchema min(Duration minDuration) => + _addConstraint(DurationConstraint.min(minDuration)); /// Constrains the duration to be on or before [maxDuration] (inclusive). - /// - /// The constraint is applied to the transformed Duration value, after the - /// integer has been validated and converted. - TransformedSchema max(Duration maxDuration) { - return copyWith( - constraints: [...constraints, DurationConstraint.max(maxDuration)], - ); + CodecSchema max(Duration maxDuration) => + _addConstraint(DurationConstraint.max(maxDuration)); + + CodecSchema _addConstraint(Constraint constraint) { + return withRuntimeConfig(constraints: [...constraints, constraint]); } } diff --git a/packages/ack/lib/src/schemas/extensions/list_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/list_schema_extensions.dart index 62920e09..df2b81c7 100644 --- a/packages/ack/lib/src/schemas/extensions/list_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/list_schema_extensions.dart @@ -3,42 +3,45 @@ import '../../constraints/list_unique_items_constraint.dart'; import '../schema.dart'; /// Adds fluent validation methods to [ListSchema]. -extension ListSchemaExtensions on ListSchema { +extension ListSchemaExtensions< + ItemBoundary extends Object, + ItemRuntime extends Object +> + on ListSchema { /// Adds a constraint that the list must have at least [n] items. - ListSchema minItems(int n) { - return withConstraint(ComparisonConstraint.listMinItems(n)); + ListSchema minItems(int n) { + return withConstraint(ComparisonConstraint.listMinItems(n)); } /// Alias for [minItems]. - ListSchema minLength(int n) => minItems(n); + ListSchema minLength(int n) => minItems(n); /// Adds a constraint that the list must have no more than [n] items. - ListSchema maxItems(int n) { - return withConstraint(ComparisonConstraint.listMaxItems(n)); + ListSchema maxItems(int n) { + return withConstraint(ComparisonConstraint.listMaxItems(n)); } /// Alias for [maxItems]. - ListSchema maxLength(int n) => maxItems(n); + ListSchema maxLength(int n) => maxItems(n); /// Adds a constraint that the list must have exactly [n] items. - ListSchema exactLength(int n) { - return withConstraint(ComparisonConstraint.listExactItems(n)); + ListSchema exactLength(int n) { + return withConstraint(ComparisonConstraint.listExactItems(n)); } /// Alias for [exactLength]. - ListSchema length(int n) => exactLength(n); + ListSchema length(int n) => exactLength(n); /// Adds a constraint that the list must not be empty. - /// This is a convenience method for `minItems(1)`. - ListSchema nonEmpty() { + ListSchema nonEmpty() { return minItems(1); } /// Alias for [nonEmpty]. - ListSchema notEmpty() => nonEmpty(); + ListSchema notEmpty() => nonEmpty(); /// Adds a constraint that all items in the list must be unique. - ListSchema unique() { - return withConstraint(ListUniqueItemsConstraint()); + ListSchema unique() { + return withConstraint(ListUniqueItemsConstraint()); } } diff --git a/packages/ack/lib/src/schemas/extensions/object_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/object_schema_extensions.dart index ec1ca2e9..98c43e58 100644 --- a/packages/ack/lib/src/schemas/extensions/object_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/object_schema_extensions.dart @@ -1,3 +1,4 @@ +import '../../common_types.dart'; import '../schema.dart'; import 'ack_schema_extensions.dart'; @@ -5,34 +6,23 @@ import 'ack_schema_extensions.dart'; extension ObjectSchemaExtensions on ObjectSchema { /// Makes the object schema strict, disallowing any properties not /// explicitly defined in the `properties` map. - /// - /// This is a convenience method for `copyWith(additionalProperties: false)`. ObjectSchema strict() { return copyWith(additionalProperties: false); } /// Allows the object schema to have properties that are not /// explicitly defined in the `properties` map. - /// - /// This is a convenience method for `copyWith(additionalProperties: true)`. ObjectSchema passthrough() { return copyWith(additionalProperties: true); } /// Merges this schema with another [ObjectSchema]. - /// - /// The properties of the [other] schema will overwrite properties of this - /// schema if they share the same key. ObjectSchema merge(ObjectSchema other) { - // Combine properties, with the 'other' schema's properties taking precedence. final newProperties = {...properties, ...other.properties}; - return copyWith(properties: newProperties); } /// Makes all properties on the schema optional. - /// - /// This wraps each property schema with `.optional()`. ObjectSchema partial() { final optionalProperties = properties.map( (key, schema) => MapEntry(key, schema.optional()), @@ -42,17 +32,12 @@ extension ObjectSchemaExtensions on ObjectSchema { } /// Extends this schema with additional or overridden properties. - /// - /// Properties in [newProperties] will override existing properties with the same key. - /// Other schema settings can be overridden using the optional parameters. ObjectSchema extend( - Map newProperties, { + Map newProperties, { bool? additionalProperties, bool? isNullable, String? description, - Map? defaultValue, }) { - // Merge properties, with new properties taking precedence final mergedProperties = {...properties, ...newProperties}; return copyWith( @@ -60,17 +45,12 @@ extension ObjectSchemaExtensions on ObjectSchema { additionalProperties: additionalProperties, isNullable: isNullable, description: description, - defaultValue: defaultValue, ); } /// Creates a new schema with a subset of the original's properties. - /// - /// Only the properties with keys included in [keysToPick] will be kept. ObjectSchema pick(List keysToPick) { final pickSet = keysToPick.toSet(); - - // Filter the properties map to only include the picked keys. final newProperties = Map.fromEntries( properties.entries.where((entry) => pickSet.contains(entry.key)), ); @@ -79,12 +59,8 @@ extension ObjectSchemaExtensions on ObjectSchema { } /// Creates a new schema with a subset of the original's properties removed. - /// - /// The properties with keys included in [keysToOmit] will be removed. ObjectSchema omit(List keysToOmit) { final omitSet = keysToOmit.toSet(); - - // Filter the properties map to exclude the omitted keys. final newProperties = Map.fromEntries( properties.entries.where((entry) => !omitSet.contains(entry.key)), ); @@ -92,3 +68,35 @@ extension ObjectSchemaExtensions on ObjectSchema { return copyWith(properties: newProperties); } } + +/// Extension that turns an [ObjectSchema] into a bidirectional codec mapping +/// the underlying [JsonMap] to a typed Dart model [Runtime]. +extension ObjectSchemaModelExtension on ObjectSchema { + /// Creates a [CodecSchema] that decodes a parsed [JsonMap] into [Runtime] + /// and encodes [Runtime] back to [JsonMap]. + /// + /// When [omitNullOptionals] is true, the encoded map drops `null` entries + /// whose property schema is marked optional. + CodecSchema model({ + required Runtime Function(JsonMap data) decode, + required JsonMap Function(Runtime value) encode, + AckSchema? output, + bool omitNullOptionals = true, + }) { + final self = this; + return self.codec( + output: output ?? InstanceSchema(), + decode: decode, + encode: (value) { + final raw = encode(value); + if (!omitNullOptionals) return raw; + return { + for (final entry in raw.entries) + if (!(entry.value == null && + (self.properties[entry.key]?.isOptional ?? false))) + entry.key: entry.value, + }; + }, + ); + } +} diff --git a/packages/ack/lib/src/schemas/extensions/string_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/string_schema_extensions.dart index f6ffdfcf..91cda789 100644 --- a/packages/ack/lib/src/schemas/extensions/string_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/string_schema_extensions.dart @@ -140,20 +140,20 @@ extension StringSchemaExtensions on StringSchema { } /// Trims leading and trailing whitespace from the string before validation. - /// Returns a transformed schema that applies String.trim() to the input. - TransformedSchema trim() { + /// Returns a one-way codec that applies String.trim() to the input. + CodecSchema trim() { return transform((s) => s.trim()); } /// Converts the string to lowercase after validation. - /// Returns a transformed schema that applies String.toLowerCase() to the input. - TransformedSchema toLowerCase() { + /// Returns a one-way codec that applies String.toLowerCase() to the input. + CodecSchema toLowerCase() { return transform((s) => s.toLowerCase()); } /// Converts the string to uppercase after validation. - /// Returns a transformed schema that applies String.toUpperCase() to the input. - TransformedSchema toUpperCase() { + /// Returns a one-way codec that applies String.toUpperCase() to the input. + CodecSchema toUpperCase() { return transform((s) => s.toUpperCase()); } } diff --git a/packages/ack/lib/src/schemas/fluent_schema.dart b/packages/ack/lib/src/schemas/fluent_schema.dart index 4d3df9cd..f169418e 100644 --- a/packages/ack/lib/src/schemas/fluent_schema.dart +++ b/packages/ack/lib/src/schemas/fluent_schema.dart @@ -1,37 +1,66 @@ part of 'schema.dart'; -/// A mixin to provide a fluent API for building and modifying schemas. +/// Provides a fluent builder API for schemas with a strongly-typed `copyWith`. /// -/// It expects the class to have a `copyWith` method that returns an instance -/// of the schema itself (`Schema`). -mixin FluentSchema> - on AckSchema { +/// `FluentSchema` is used by primitives and composites that return their own +/// concrete type from `copyWith`. +mixin FluentSchema< + Boundary extends Object, + Runtime extends Object, + Schema extends AckSchema +> + on AckSchema { + /// Returns a copy of this schema with the given fields replaced. + Schema copyWith({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }); + + @override + Schema withRuntimeConfig({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + return copyWith( + isNullable: isNullable, + isOptional: isOptional, + description: description, + constraints: constraints, + refinements: refinements, + ); + } + /// Marks the schema as nullable. - Schema nullable({bool value = true}) => copyWith(isNullable: value) as Schema; + @override + Schema nullable({bool value = true}) => copyWith(isNullable: value); /// Marks the schema as optional so the field can be omitted from an object. - /// - /// See [AckSchemaExtensions.optional] for detailed semantics. - Schema optional({bool value = true}) => copyWith(isOptional: value) as Schema; + @override + Schema optional({bool value = true}) => copyWith(isOptional: value); /// Sets the description for the schema. - Schema describe(String description) => - copyWith(description: description) as Schema; + @override + Schema describe(String description) => copyWith(description: description); /// Alias for describe() for backward compatibility. @Deprecated('Use describe() instead. Will be removed in a future version.') + @override Schema withDescription(String description) => - copyWith(description: description) as Schema; - - /// Sets the default value for the schema. - Schema withDefault(DartType defaultValue) => - copyWith(defaultValue: defaultValue) as Schema; + copyWith(description: description); /// Adds a validation constraint to the schema. - Schema withConstraint(Constraint constraint) => - copyWith(constraints: [...constraints, constraint]) as Schema; + @override + Schema withConstraint(Constraint constraint) => + copyWith(constraints: [...constraints, constraint]); /// Adds a list of validation constraints to the schema. - Schema withConstraints(List> newConstraints) => - copyWith(constraints: [...constraints, ...newConstraints]) as Schema; + @override + Schema withConstraints(List> newConstraints) => + copyWith(constraints: [...constraints, ...newConstraints]); } diff --git a/packages/ack/lib/src/schemas/instance_schema.dart b/packages/ack/lib/src/schemas/instance_schema.dart new file mode 100644 index 00000000..0cfb8640 --- /dev/null +++ b/packages/ack/lib/src/schemas/instance_schema.dart @@ -0,0 +1,80 @@ +part of 'schema.dart'; + +/// Schema that accepts a specific runtime [T] instance, with [T] as both +/// boundary and runtime type. Used as the default `output` schema of a +/// [CodecSchema] so codec authors can attach typed refinements (e.g. +/// requiring a `DateTime` to be UTC) on the runtime side. +@immutable +final class InstanceSchema extends AckSchema + with FluentSchema> { + const InstanceSchema({ + super.isNullable, + super.isOptional, + super.description, + super.constraints, + super.refinements, + }); + + @override + SchemaType get schemaType => SchemaType.any; + + @override + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context) => + validateRuntimeWithContext(value, context); + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + if (value is! T) { + return SchemaResult.fail( + SchemaValidationError( + message: 'Expected instance of $T, got ${value.runtimeType}', + context: context, + ), + ); + } + return applyConstraintsAndRefinements(value, context); + } + + @override + @protected + SchemaResult encodeWithContext(T value, SchemaContext context) => + encodeAsBoundary(value, context); + + @override + InstanceSchema copyWith({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + return InstanceSchema( + isNullable: isNullable ?? this.isNullable, + isOptional: isOptional ?? this.isOptional, + description: description ?? this.description, + constraints: constraints ?? this.constraints, + refinements: refinements ?? this.refinements, + ); + } + + @override + Map toJsonSchema() => + buildJsonSchemaWithNullable(typeSchema: const {}); + + @override + bool operator ==(Object other) { + if (identical(this, other)) return true; + if (other is! InstanceSchema) return false; + return baseFieldsEqual(other); + } + + @override + int get hashCode => baseFieldsHashCode; +} diff --git a/packages/ack/lib/src/schemas/list_schema.dart b/packages/ack/lib/src/schemas/list_schema.dart index 36ca8aed..33dc4704 100644 --- a/packages/ack/lib/src/schemas/list_schema.dart +++ b/packages/ack/lib/src/schemas/list_schema.dart @@ -1,17 +1,23 @@ part of 'schema.dart'; -/// Schema for validating lists (`List`) where each item conforms to `itemSchema`. +/// Schema for validating `List` whose items conform to +/// [itemSchema], with boundary type `List`. @immutable -final class ListSchema extends AckSchema> - with FluentSchema, ListSchema> { - final AckSchema itemSchema; +final class ListSchema + extends AckSchema, List> + with + FluentSchema< + List, + List, + ListSchema + > { + final AckSchema itemSchema; const ListSchema( this.itemSchema, { super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }); @@ -21,96 +27,164 @@ final class ListSchema extends AckSchema> @override @protected - SchemaResult> parseAndValidate( - Object? inputValue, + SchemaResult> parseWithContext( + Object? value, SchemaContext context, - ) { - // Use centralized null handling - final nullResult = handleNullInput(inputValue, context); + ) => _processItems(value, context, parse: true); + + @override + @protected + SchemaResult> validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) => _processItems(value, context, parse: false); + + SchemaResult> _processItems( + Object? value, + SchemaContext context, { + required bool parse, + }) { + final nullResult = handleNullInput(value, context); if (nullResult != null) return nullResult; - // Type guard - if (inputValue is! List) { - final actualType = AckSchema.getSchemaType(inputValue); + if (value is! List) { return SchemaResult.fail( - TypeMismatchError( + _buildTypeMismatch( expectedType: schemaType, - actualType: actualType, + actualValue: value, context: context, ), ); } - final inputList = inputValue; - final validatedItems = []; - final itemErrors = []; - for (var i = 0; i < inputList.length; i++) { - final itemValue = inputList[i]; - final itemContext = context.createChild( + final typed = []; + final errors = []; + for (var i = 0; i < value.length; i++) { + final item = value[i]; + final itemCtx = context.createChild( name: '$i', schema: itemSchema, - value: itemValue, + value: item, pathSegment: '$i', ); - - final itemResult = itemSchema.parseAndValidate(itemValue, itemContext); - - if (itemResult.isOk) { - final validatedItemValue = itemResult.getOrNull(); - if (validatedItemValue is V) { - validatedItems.add(validatedItemValue); + final r = parse + ? itemSchema.parseWithContext(item, itemCtx) + : itemSchema.validateRuntimeWithContext(item, itemCtx); + if (r.isOk) { + final v = r.getOrNull(); + if (v is ItemRuntime) { + typed.add(v); } else { - itemErrors.add( + errors.add( SchemaValidationError( message: - 'List item ${itemContext.name} resolved to null. Use non-nullable item schemas for Ack.list.', - context: itemContext, + 'List item $i resolved to null. Use non-nullable item schemas for Ack.list.', + context: itemCtx, ), ); } } else { - itemErrors.add(itemResult.getError()); + errors.add(r.getError()); } } - if (itemErrors.isNotEmpty) { + if (errors.isNotEmpty) { return SchemaResult.fail( - SchemaNestedError(errors: itemErrors, context: context), + SchemaNestedError(errors: errors, context: context), ); } - final unmodifiableList = List.unmodifiable(validatedItems); - return applyConstraintsAndRefinements(unmodifiableList, context); + return applyConstraintsAndRefinements( + List.unmodifiable(typed), + context, + ); } @override - ListSchema copyWith({ - AckSchema? itemSchema, + @protected + SchemaResult> encodeWithContext( + List value, + SchemaContext context, + ) { + final validated = validateRuntimeWithContext(value, context); + if (validated.isFail) return SchemaResult.fail(validated.getError()); + + final encoded = []; + final errors = []; + for (var i = 0; i < value.length; i++) { + final item = value[i]; + final itemCtx = context.createChild( + name: '$i', + schema: itemSchema, + value: item, + pathSegment: '$i', + operation: SchemaOperation.encode, + ); + try { + final r = itemSchema.encodeWithContext(item, itemCtx); + if (r.isFail) { + errors.add(r.getError()); + continue; + } + final boundary = r.getOrNull(); + if (boundary is ItemBoundary) { + encoded.add(boundary); + } else { + errors.add( + SchemaEncodeError.typeMismatch( + message: 'List item $i encoded to an unexpected type.', + context: itemCtx, + ), + ); + } + } catch (e, st) { + errors.add( + SchemaEncodeError.encoderThrew( + message: 'List item $i encoder threw: $e', + context: itemCtx, + cause: e, + stackTrace: st, + ), + ); + } + } + if (errors.isNotEmpty) { + return SchemaResult.fail( + SchemaNestedError(errors: errors, context: context), + ); + } + return SchemaResult.ok(List.unmodifiable(encoded)); + } + + @override + ListSchema copyWith({ bool? isNullable, bool? isOptional, String? description, - List? defaultValue, - List>>? constraints, - List>>? refinements, + List>>? constraints, + List>>? refinements, }) { - return ListSchema( - itemSchema ?? this.itemSchema, + return ListSchema( + itemSchema, isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, ); } + @override + Map toJsonSchema() => buildJsonSchemaWithNullable( + typeSchema: {'type': 'array', 'items': itemSchema.toJsonSchema()}, + ); + @override Map toMap() { return { 'type': schemaType.typeName, 'isNullable': isNullable, 'description': description, - 'defaultValue': defaultValue, 'constraints': constraints.map((c) => c.toMap()).toList(), 'itemSchema': itemSchema.schemaType.typeName, }; @@ -119,7 +193,7 @@ final class ListSchema extends AckSchema> @override bool operator ==(Object other) { if (identical(this, other)) return true; - if (other is! ListSchema) return false; + if (other is! ListSchema) return false; return baseFieldsEqual(other) && itemSchema == other.itemSchema; } diff --git a/packages/ack/lib/src/schemas/num_schema.dart b/packages/ack/lib/src/schemas/num_schema.dart index 5b20dc6b..0005c088 100644 --- a/packages/ack/lib/src/schemas/num_schema.dart +++ b/packages/ack/lib/src/schemas/num_schema.dart @@ -1,20 +1,12 @@ part of 'schema.dart'; -/// Base schema for numeric types (integer and double). -/// -/// Provides common numeric validation constraints. Use [IntegerSchema] -/// or [DoubleSchema] for type-specific validation. +/// Base schema for numeric types (integer, double, num). @immutable -sealed class NumSchema extends AckSchema { - @override - final bool strictPrimitiveParsing; - +sealed class NumSchema extends AckSchema { const NumSchema({ - this.strictPrimitiveParsing = false, super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }); @@ -23,23 +15,13 @@ sealed class NumSchema extends AckSchema { // --- IntegerSchema --- /// Schema for validating integer values. -/// -/// Supports validation for whole numbers with constraints like min/max, -/// positive/negative, and multipleOf. -/// -/// Example: -/// ```dart -/// final ageSchema = Ack.integer().min(0).max(150); -/// ``` @immutable final class IntegerSchema extends NumSchema - with FluentSchema { + with FluentSchema { const IntegerSchema({ - super.strictPrimitiveParsing, super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }); @@ -47,64 +29,79 @@ final class IntegerSchema extends NumSchema @override SchemaType get schemaType => SchemaType.integer; - /// Creates a new [IntegerSchema] that enforces strict parsing. - IntegerSchema strictParsing({bool value = true}) => - copyWith(strictPrimitiveParsing: value); + @override + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context) => + validateRuntimeWithContext(value, context); + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + + if (value is! int) { + return SchemaResult.fail( + _buildTypeMismatch( + expectedType: schemaType, + actualValue: value, + context: context, + ), + ); + } + return applyConstraintsAndRefinements(value, context); + } + + @override + @protected + SchemaResult encodeWithContext(int value, SchemaContext context) => + encodeAsBoundary(value, context); @override IntegerSchema copyWith({ bool? isNullable, bool? isOptional, String? description, - int? defaultValue, List>? constraints, List>? refinements, - bool? strictPrimitiveParsing, }) { return IntegerSchema( isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, - strictPrimitiveParsing: - strictPrimitiveParsing ?? this.strictPrimitiveParsing, ); } + @override + Map toJsonSchema() => + buildJsonSchemaWithNullable(typeSchema: {'type': 'integer'}); + @override bool operator ==(Object other) { if (identical(this, other)) return true; if (other is! IntegerSchema) return false; - return baseFieldsEqual(other) && - strictPrimitiveParsing == other.strictPrimitiveParsing; + return baseFieldsEqual(other); } @override - int get hashCode => Object.hash(baseFieldsHashCode, strictPrimitiveParsing); + int get hashCode => baseFieldsHashCode; } // --- DoubleSchema --- -/// Schema for validating double/floating-point values. -/// -/// Supports validation for decimal numbers with constraints like min/max, -/// finite checks, and precision requirements. -/// -/// Example: -/// ```dart -/// final priceSchema = Ack.double().min(0.0).finite(); -/// ``` +/// Schema for validating double values. @immutable final class DoubleSchema extends NumSchema - with FluentSchema { + with FluentSchema { const DoubleSchema({ - super.strictPrimitiveParsing, super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }); @@ -112,40 +109,144 @@ final class DoubleSchema extends NumSchema @override SchemaType get schemaType => SchemaType.number; - /// Creates a new [DoubleSchema] that enforces strict parsing. - DoubleSchema strictParsing({bool value = true}) => - copyWith(strictPrimitiveParsing: value); + @override + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context) => + validateRuntimeWithContext(value, context); + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + + if (value is! double) { + return SchemaResult.fail( + _buildTypeMismatch( + expectedType: schemaType, + actualValue: value, + context: context, + ), + ); + } + return applyConstraintsAndRefinements(value, context); + } + + @override + @protected + SchemaResult encodeWithContext(double value, SchemaContext context) => + encodeAsBoundary(value, context); @override DoubleSchema copyWith({ bool? isNullable, bool? isOptional, String? description, - double? defaultValue, List>? constraints, List>? refinements, - bool? strictPrimitiveParsing, }) { return DoubleSchema( isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, - strictPrimitiveParsing: - strictPrimitiveParsing ?? this.strictPrimitiveParsing, ); } + @override + Map toJsonSchema() => + buildJsonSchemaWithNullable(typeSchema: {'type': 'number'}); + @override bool operator ==(Object other) { if (identical(this, other)) return true; if (other is! DoubleSchema) return false; - return baseFieldsEqual(other) && - strictPrimitiveParsing == other.strictPrimitiveParsing; + return baseFieldsEqual(other); + } + + @override + int get hashCode => baseFieldsHashCode; +} + +// --- NumberSchema (num boundary/runtime) --- + +/// Schema for validating any [num] value. +@immutable +final class NumberSchema extends NumSchema + with FluentSchema { + const NumberSchema({ + super.isNullable, + super.isOptional, + super.description, + super.constraints, + super.refinements, + }); + + @override + SchemaType get schemaType => SchemaType.number; + + @override + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context) => + validateRuntimeWithContext(value, context); + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + if (value is! num) { + return SchemaResult.fail( + _buildTypeMismatch( + expectedType: schemaType, + actualValue: value, + context: context, + ), + ); + } + return applyConstraintsAndRefinements(value, context); + } + + @override + @protected + SchemaResult encodeWithContext(num value, SchemaContext context) => + encodeAsBoundary(value, context); + + @override + NumberSchema copyWith({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + return NumberSchema( + isNullable: isNullable ?? this.isNullable, + isOptional: isOptional ?? this.isOptional, + description: description ?? this.description, + constraints: constraints ?? this.constraints, + refinements: refinements ?? this.refinements, + ); + } + + @override + Map toJsonSchema() => + buildJsonSchemaWithNullable(typeSchema: {'type': 'number'}); + + @override + bool operator ==(Object other) { + if (identical(this, other)) return true; + if (other is! NumberSchema) return false; + return baseFieldsEqual(other); } @override - int get hashCode => Object.hash(baseFieldsHashCode, strictPrimitiveParsing); + int get hashCode => baseFieldsHashCode; } diff --git a/packages/ack/lib/src/schemas/object_schema.dart b/packages/ack/lib/src/schemas/object_schema.dart index 4547885d..bd8a1c80 100644 --- a/packages/ack/lib/src/schemas/object_schema.dart +++ b/packages/ack/lib/src/schemas/object_schema.dart @@ -1,19 +1,36 @@ part of 'schema.dart'; -/// Schema for validating maps (`Map`), often used for objects. +/// Schema for validating `JsonMap` shaped values. +/// +/// `ObjectSchema` has identical boundary and runtime types +/// (`AckSchema`). Use [ObjectSchemaModelExtension.model] to +/// map an object shape to a typed Dart model. +/// +/// ## Optional / nullable semantics +/// +/// The parse and encode paths treat present-null differently from absence: +/// +/// * **Parse**: `optional` means the key may be absent. If the key IS +/// present with a null value, the property schema must also be +/// `nullable` or the parse fails with a non-nullable constraint error. +/// * **Encode**: a key present with `null` whose schema is `optional` +/// (but not `nullable`) is omitted from the encoded output rather than +/// emitted as `null`. This is so a model encoder can simply write +/// `'color': value.color` and let optional nulls disappear. +/// +/// If you need to emit an explicit `null`, mark the property `nullable`. @immutable -final class ObjectSchema extends AckSchema - with FluentSchema { - final Map properties; +final class ObjectSchema extends AckSchema + with FluentSchema { + final Map properties; final bool additionalProperties; - const ObjectSchema( - Map? properties, { + ObjectSchema( + Map? properties, { this.additionalProperties = false, super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }) : properties = properties ?? const {}; @@ -23,69 +40,52 @@ final class ObjectSchema extends AckSchema @override @protected - SchemaResult parseAndValidate( - Object? inputValue, - SchemaContext context, - ) { - // Use centralized null handling (including cloned default handling). - final nullResult = handleNullInput(inputValue, context); + SchemaResult parseWithContext(Object? value, SchemaContext context) { + final nullResult = handleNullInput(value, context); if (nullResult != null) return nullResult; - // Type guard - if (inputValue is! Map) { - final actualType = AckSchema.getSchemaType(inputValue); + final mapValue = jsonMapOrNull(value); + if (mapValue == null) { return SchemaResult.fail( - TypeMismatchError( + _buildTypeMismatch( expectedType: schemaType, - actualType: actualType, + actualValue: value, context: context, ), ); } - // Handle both Map and Map from JSON - final mapValue = inputValue is Map - ? inputValue - : inputValue.cast(); final validatedMap = {}; - final validationErrors = []; + final errors = []; - // Validate all properties defined in the schema for (final entry in properties.entries) { final key = entry.key; final schema = entry.value; final hasValue = mapValue.containsKey(key); if (!hasValue) { - // Property missing from input - if (schema.isOptional) { - // Optional field with default - pass null to trigger the child schema's - // handleNullInput, which clones and validates the default. - if (schema.defaultValue != null) { - final propertyContext = context.createChild( - name: key, - schema: schema, - value: null, - pathSegment: key, - ); - final result = schema.parseAndValidate(null, propertyContext); - result.match( - onOk: (validatedValue) { - if (validatedValue != null) { - validatedMap[key] = validatedValue; - } - }, - onFail: validationErrors.add, - ); - } - // Optional field without default - omit from output - } else { - // Required field missing + if (schema is DefaultSchema) { + // Default-wrapped schemas resolve their default on parse(null). + final childCtx = context.createChild( + name: key, + schema: schema, + value: null, + pathSegment: key, + ); + schema + .parseWithContext(null, childCtx) + .match( + onOk: (v) { + if (v != null) validatedMap[key] = v; + }, + onFail: errors.add, + ); + } else if (!schema.isOptional) { final ce = ObjectRequiredPropertiesConstraint( missingPropertyKey: key, ).validate(mapValue); if (ce != null) { - validationErrors.add( + errors.add( SchemaConstraintsError( constraints: [ce], context: context.createChild( @@ -98,74 +98,277 @@ final class ObjectSchema extends AckSchema ); } } + continue; + } + + final propertyValue = mapValue[key]; + final propertyCtx = context.createChild( + name: key, + schema: schema, + value: propertyValue, + pathSegment: key, + ); + schema + .parseWithContext(propertyValue, propertyCtx) + .match( + onOk: (v) { + validatedMap[key] = v; + }, + onFail: errors.add, + ); + } + + for (final key in mapValue.keys) { + if (properties.containsKey(key)) continue; + if (additionalProperties) { + validatedMap[key] = mapValue[key]; } else { - // Property exists - validate it - final propertyValue = mapValue[key]; - final propertyContext = context.createChild( + errors.add( + SchemaConstraintsError( + constraints: [ + ConstraintError( + constraint: ObjectNoAdditionalPropertiesConstraint( + unexpectedPropertyKey: key, + ), + message: 'Property "$key" is not allowed.', + ), + ], + context: context.createChild( + name: key, + schema: this, + value: mapValue[key], + pathSegment: key, + ), + ), + ); + } + } + + if (errors.isNotEmpty) { + return SchemaResult.fail( + SchemaNestedError(errors: errors, context: context), + ); + } + + return applyConstraintsAndRefinements( + Map.unmodifiable(validatedMap), + context, + ); + } + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + + final mapValue = jsonMapOrNull(value); + if (mapValue == null) { + return SchemaResult.fail( + _buildTypeMismatch( + expectedType: schemaType, + actualValue: value, + context: context, + ), + ); + } + + final errors = []; + final isEncode = context.operation == SchemaOperation.encode; + + for (final entry in properties.entries) { + final key = entry.key; + final schema = entry.value; + final hasValue = mapValue.containsKey(key); + + if (!hasValue) { + if (schema.isOptional || + (isEncode && schema is DefaultSchema)) { + continue; + } + final propertyCtx = context.createChild( name: key, schema: schema, - value: propertyValue, + value: null, pathSegment: key, ); - final result = schema.parseAndValidate(propertyValue, propertyContext); - result.match( - onOk: (validatedValue) { - validatedMap[key] = validatedValue; - }, - onFail: validationErrors.add, - ); + if (isEncode) { + errors.add( + SchemaEncodeError.missingRequiredProperty( + propertyKey: key, + context: propertyCtx, + ), + ); + } else { + final ce = ObjectRequiredPropertiesConstraint( + missingPropertyKey: key, + ).validate(mapValue); + if (ce != null) { + errors.add( + SchemaConstraintsError(constraints: [ce], context: propertyCtx), + ); + } + } + continue; } + + final propertyValue = mapValue[key]; + final propertyCtx = context.createChild( + name: key, + schema: schema, + value: propertyValue, + pathSegment: key, + ); + + if (propertyValue == null) { + if (schema.isNullable || (isEncode && schema.isOptional)) continue; + if (isEncode) { + errors.add(SchemaEncodeError.nonNullable(context: propertyCtx)); + } else { + final ce = NonNullableConstraint().validate(null); + if (ce != null) { + errors.add( + SchemaConstraintsError(constraints: [ce], context: propertyCtx), + ); + } + } + continue; + } + + final r = schema.validateRuntimeWithContext(propertyValue, propertyCtx); + if (r.isFail) errors.add(r.getError()); } - // Handle additional properties - final knownKeys = properties.keys.toSet(); for (final key in mapValue.keys) { - if (!knownKeys.contains(key)) { - if (additionalProperties) { - validatedMap[key] = mapValue[key]; - } else { - validationErrors.add( - SchemaConstraintsError( - constraints: [ - ConstraintError( - constraint: ObjectNoAdditionalPropertiesConstraint( - unexpectedPropertyKey: key, - ), - message: 'Property "$key" is not allowed.', + if (properties.containsKey(key)) continue; + if (additionalProperties) continue; + final extraCtx = context.createChild( + name: key, + schema: this, + value: mapValue[key], + pathSegment: key, + ); + if (isEncode) { + errors.add( + SchemaEncodeError.unexpectedProperty( + propertyKey: key, + context: extraCtx, + ), + ); + } else { + errors.add( + SchemaConstraintsError( + constraints: [ + ConstraintError( + constraint: ObjectNoAdditionalPropertiesConstraint( + unexpectedPropertyKey: key, ), - ], - context: context.createChild( - name: key, - schema: this, - value: mapValue[key], - pathSegment: key, + message: 'Property "$key" is not allowed.', ), - ), - ); + ], + context: extraCtx, + ), + ); + } + } + + if (errors.isNotEmpty) { + return SchemaResult.fail( + SchemaNestedError(errors: errors, context: context), + ); + } + + return applyConstraintsAndRefinements(mapValue, context); + } + + @override + @protected + SchemaResult encodeWithContext( + JsonMap value, + SchemaContext context, + ) { + final validated = validateRuntimeWithContext(value, context); + if (validated.isFail) return SchemaResult.fail(validated.getError()); + + final encoded = {}; + final errors = []; + + for (final entry in properties.entries) { + final key = entry.key; + final schema = entry.value; + final hasValue = value.containsKey(key); + final propertyCtx = context.createChild( + name: key, + schema: schema, + value: hasValue ? value[key] : null, + pathSegment: key, + operation: SchemaOperation.encode, + ); + final Object? propertyValue; + if (hasValue) { + propertyValue = value[key]; + } else if (schema is DefaultSchema) { + final defaultResult = schema.parseWithContext(null, propertyCtx); + if (defaultResult.isFail) { + errors.add(defaultResult.getError()); + continue; + } + propertyValue = defaultResult.getOrNull(); + } else { + continue; + } + if (propertyValue == null) { + if (schema.isNullable) encoded[key] = null; + continue; + } + try { + final r = schema.encodeWithContext(propertyValue, propertyCtx); + if (r.isFail) { + errors.add(r.getError()); + } else { + encoded[key] = r.getOrNull(); + } + } catch (e, st) { + errors.add( + SchemaEncodeError.encoderThrew( + message: 'Property "$key" encoder threw: $e', + context: propertyCtx, + cause: e, + stackTrace: st, + ), + ); + } + } + + if (additionalProperties) { + for (final key in value.keys) { + if (!properties.containsKey(key)) { + encoded[key] = value[key]; } } } - if (validationErrors.isNotEmpty) { + if (errors.isNotEmpty) { return SchemaResult.fail( - SchemaNestedError(errors: validationErrors, context: context), + SchemaNestedError(errors: errors, context: context), ); } - final unmodifiableMap = Map.unmodifiable(validatedMap); - return applyConstraintsAndRefinements(unmodifiableMap, context); + return SchemaResult.ok(Map.unmodifiable(encoded)); } @override ObjectSchema copyWith({ - Map? properties, + Map? properties, bool? additionalProperties, bool? isNullable, bool? isOptional, String? description, - MapValue? defaultValue, - List>? constraints, - List>? refinements, + List>? constraints, + List>? refinements, }) { return ObjectSchema( properties ?? this.properties, @@ -173,19 +376,44 @@ final class ObjectSchema extends AckSchema isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, ); } + @override + Map toJsonSchema() { + final propsJsonSchema = {}; + final requiredFields = []; + + for (final entry in properties.entries) { + propsJsonSchema[entry.key] = entry.value.toJsonSchema(); + if (!entry.value.isOptional && + entry.value is! DefaultSchema) { + requiredFields.add(entry.key); + } + } + + final additionalPropertiesValue = additionalProperties + ? {} + : false; + + return buildJsonSchemaWithNullable( + typeSchema: { + 'type': 'object', + 'properties': propsJsonSchema, + if (requiredFields.isNotEmpty) 'required': requiredFields, + 'additionalProperties': additionalPropertiesValue, + }, + ); + } + @override Map toMap() { return { 'type': schemaType.typeName, 'isNullable': isNullable, 'description': description, - 'defaultValue': defaultValue, 'constraints': constraints.map((c) => c.toMap()).toList(), 'properties': properties.length, 'additionalProperties': additionalProperties, @@ -196,7 +424,7 @@ final class ObjectSchema extends AckSchema bool operator ==(Object other) { if (identical(this, other)) return true; if (other is! ObjectSchema) return false; - const mapEq = MapEquality(); + const mapEq = MapEquality(); return baseFieldsEqual(other) && additionalProperties == other.additionalProperties && mapEq.equals(properties, other.properties); @@ -204,7 +432,7 @@ final class ObjectSchema extends AckSchema @override int get hashCode { - const mapEq = MapEquality(); + const mapEq = MapEquality(); return Object.hash( baseFieldsHashCode, additionalProperties, diff --git a/packages/ack/lib/src/schemas/schema.dart b/packages/ack/lib/src/schemas/schema.dart index f0f45e4b..6b599d7b 100644 --- a/packages/ack/lib/src/schemas/schema.dart +++ b/packages/ack/lib/src/schemas/schema.dart @@ -7,48 +7,81 @@ import '../constraints/pattern_constraint.dart'; import '../constraints/validators.dart'; import '../context.dart'; import '../helpers.dart'; -import '../schema_model/ack_schema_model_builder.dart'; import '../validation/schema_error.dart'; import '../validation/schema_result.dart'; part 'any_of_schema.dart'; part 'any_schema.dart'; part 'boolean_schema.dart'; +part 'codec_schema.dart'; +part 'default_schema.dart'; part 'discriminated_object_schema.dart'; part 'enum_schema.dart'; part 'fluent_schema.dart'; +part 'instance_schema.dart'; part 'list_schema.dart'; part 'num_schema.dart'; part 'object_schema.dart'; part 'schema_type.dart'; part 'string_schema.dart'; -part 'transformed_schema.dart'; part 'testing/testing_schemas.dart'; +part 'wrapper_schema.dart'; typedef Refinement = ({bool Function(T value) validate, String message}); +/// Type-erased ACK schema used when traversing heterogeneous schema graphs. +/// +/// Use this when both boundary and runtime types are intentionally unknown, +/// such as converter traversal, object properties, or wrapper unwrapping. +/// Keep partially known schemas typed with their specific generic half instead +/// of widening them to [AnyAckSchema]. +typedef AnyAckSchema = AckSchema; + +/// Indicates whether a schema operation is parsing inbound data or encoding +/// runtime values back to the boundary representation. +enum SchemaOperation { parse, encode } + +/// The bidirectional schema contract. +/// +/// Every schema declares two type parameters: +/// +/// * [Boundary] is the encoded / wire / JSON-facing value type. +/// * [Runtime] is the parsed Dart application value type. +/// +/// All schemas implement three internal operations: +/// +/// * [parseWithContext]: Boundary → Runtime decoding (plus boundary validation). +/// * [validateRuntimeWithContext]: runtime type/invariant validation. +/// * [encodeWithContext]: Runtime → Boundary encoding. +/// +/// The public [parse]/[safeParse] and [encode]/[safeEncode] APIs are thin +/// wrappers that build a root [SchemaContext] and delegate to these three +/// methods. Subclasses override the three methods; they should not override +/// the public wrappers. @immutable -sealed class AckSchema { +abstract class AckSchema { final bool isNullable; final bool isOptional; final String? description; - final DartType? defaultValue; - final List> _constraints; - final List> _refinements; + final List> _constraints; + final List> _refinements; /// Returns an unmodifiable view of the constraints for this schema. - List> get constraints => List.unmodifiable(_constraints); + List> get constraints => List.unmodifiable(_constraints); /// Returns an unmodifiable view of the refinements for this schema. - List> get refinements => List.unmodifiable(_refinements); + List> get refinements => List.unmodifiable(_refinements); + + Iterable get _constraintsForEquality => _constraints; + + Iterable get _refinementsForEquality => _refinements; const AckSchema({ this.isNullable = false, this.isOptional = false, this.description, - this.defaultValue, - List> constraints = const [], - List> refinements = const [], + List> constraints = const [], + List> refinements = const [], }) : _constraints = constraints, _refinements = refinements; @@ -57,16 +90,51 @@ sealed class AckSchema { return SchemaType.of(value); } - /// Applies constraints and refinements to a validated value. + // --------------------------------------------------------------------------- + // Subclass-facing internal lifecycle + // --------------------------------------------------------------------------- + + /// Decodes a boundary value into a runtime value. + /// + /// Subclasses MUST implement this. The context passed in carries operation + /// information and JSON Pointer path state. + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context); + + /// Validates that [value] is a valid runtime value for this schema. + /// + /// This is the single source of truth for runtime invariants. Subclasses + /// MUST implement it; codecs call it on their output to validate decoded / + /// pre-encode runtime values, and [encodeWithContext] uses it as a + /// precondition. + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ); + + /// Encodes a runtime value into a boundary value. The base class strips + /// `null` before calling this; subclasses receive a non-null [value]. /// - /// Checks constraints first, then runs refinements if all constraints pass. - /// Schemas call this after type validation and conversion. + /// Implementations should call [validateRuntimeWithContext] first so the + /// runtime is checked before encoding. @protected - SchemaResult applyConstraintsAndRefinements( - DartType value, + SchemaResult encodeWithContext( + Runtime value, + SchemaContext context, + ); + + // --------------------------------------------------------------------------- + // Shared helpers used by subclasses + // --------------------------------------------------------------------------- + + /// Applies constraints and refinements to a runtime value. + @protected + SchemaResult applyConstraintsAndRefinements( + Runtime value, SchemaContext context, ) { - final constraintViolations = _checkConstraints(value, context); + final constraintViolations = _checkConstraints(value); if (constraintViolations.isNotEmpty) { return SchemaResult.fail( SchemaConstraintsError( @@ -78,31 +146,22 @@ sealed class AckSchema { return _runRefinements(value, context); } - @protected - List _checkConstraints( - DartType value, - SchemaContext context, - ) { - if (constraints.isEmpty) return const []; + List _checkConstraints(Runtime value) { + if (_constraints.isEmpty) return const []; final errors = []; - for (final constraint in constraints) { - if (constraint is Validator) { + for (final constraint in _constraints) { + if (constraint is Validator) { final error = constraint.validate(value); if (error != null) { errors.add(error); } } } - return errors; } - @protected - SchemaResult _runRefinements( - DartType value, - SchemaContext context, - ) { - for (final refinement in refinements) { + SchemaResult _runRefinements(Runtime value, SchemaContext context) { + for (final refinement in _refinements) { if (!refinement.validate(value)) { return SchemaResult.fail( SchemaValidationError(message: refinement.message, context: context), @@ -113,9 +172,86 @@ sealed class AckSchema { return SchemaResult.ok(value); } - /// Creates a non-nullable constraint error result. + /// Merges constraint JSON schemas into a base schema. + @protected + Map mergeConstraintSchemas(Map baseSchema) { + final constraintSchemas = >[]; + for (final constraint in _constraints) { + if (constraint is JsonSchemaSpec) { + constraintSchemas.add(constraint.toJsonSchema()); + } + } + return constraintSchemas.fold( + baseSchema, + (prev, current) => deepMerge(prev, current), + ); + } + + /// Builds a JSON Schema map with proper nullable handling. + @protected + Map buildJsonSchemaWithNullable({ + required Map typeSchema, + Object? serializedDefault, + }) { + if (isNullable) { + final baseSchema = { + ...typeSchema, + if (description != null) 'description': description, + }; + final mergedSchema = mergeConstraintSchemas(baseSchema); + return { + if (serializedDefault != null) 'default': serializedDefault, + 'anyOf': [ + mergedSchema, + {'type': 'null'}, + ], + }; + } + + final schema = { + ...typeSchema, + if (description != null) 'description': description, + if (serializedDefault != null) 'default': serializedDefault, + }; + + return mergeConstraintSchemas(schema); + } + + /// Wraps a composite (e.g. `anyOf`) JSON Schema in a nullable form when + /// the schema is nullable. Unlike [buildJsonSchemaWithNullable], the inner + /// composite is preserved as-is (constraints are merged into it) and the + /// nullable branch is added at the outer level. Used by [AnyOfSchema] and + /// [DiscriminatedObjectSchema] whose root key is already `anyOf`. + @protected + Map wrapCompositeWithNullable( + Map baseSchema, + ) { + if (!isNullable) return mergeConstraintSchemas(baseSchema); + return { + if (description != null) 'description': description, + 'anyOf': [ + mergeConstraintSchemas(baseSchema), + {'type': 'null'}, + ], + }; + } + + /// Helper for schemas whose boundary == runtime: validates the runtime + /// value and, if it passes, returns it as the boundary value unchanged. + /// Only safe to call when `Boundary` and `Runtime` are the same type. @protected - SchemaResult failNonNullable(SchemaContext context) { + SchemaResult encodeAsBoundary( + Runtime value, + SchemaContext context, + ) { + final validated = validateRuntimeWithContext(value, context); + if (validated.isFail) return SchemaResult.fail(validated.getError()); + return SchemaResult.ok(value as Boundary); + } + + /// Runtime-side non-nullable failure. + @protected + SchemaResult failNonNullable(SchemaContext context) { final constraintError = NonNullableConstraint().validate(null); return SchemaResult.fail( SchemaConstraintsError( @@ -125,124 +261,143 @@ sealed class AckSchema { ); } - /// Handles null input for schemas using the standard null/default flow. - /// - /// Returns `null` when [inputValue] is non-null so callers can continue parsing. - /// For null input, returns a validated clone of [defaultValue] when present, - /// otherwise `Ok(null)` if nullable, else a non-nullable failure result. + /// Encode-side non-nullable failure. @protected - SchemaResult? handleNullInput( + SchemaResult failNonNullableEncode(SchemaContext context) { + return SchemaResult.fail(SchemaEncodeError.nonNullable(context: context)); + } + + /// Centralized null gate for the parse/validate paths. Returns null when + /// [inputValue] is non-null; otherwise returns Ok(null) if [acceptsParseNull] + /// is true or a non-nullable failure. + @protected + SchemaResult? handleNullInput( Object? inputValue, SchemaContext context, ) { if (inputValue != null) return null; - if (defaultValue != null) { - // Clone mutable defaults to avoid shared state across parse calls. - final clonedDefault = cloneDefault(defaultValue!); - return parseAndValidate(clonedDefault, context); - } - - if (isNullable) { + if (acceptsParseNull) { return SchemaResult.ok(null); } return failNonNullable(context); } + /// Whether `parse(null)` (and the parse-side null gate inside + /// [handleNullInput]) should accept null without raising a non-nullable + /// failure. Defaults to [isNullable]; subclasses with branch-level null + /// policies (e.g. [AnyOfSchema]) override this hook. + @protected + bool get acceptsParseNull => isNullable; + + /// Whether `encode(null)` should produce `Ok(null)` rather than a + /// non-nullable encode failure. Defaults to [isNullable]; subclasses with + /// branch-level null policies override this hook. + @protected + bool get acceptsEncodeNull => isNullable; + /// The schema type category for this schema. - /// - /// Subclasses must override to specify their type. - /// Primitives return JSON types (string, integer), composites return - /// schema categories (anyOf, discriminated). @protected SchemaType get schemaType; /// Human-readable type name for error messages and debugging. String get schemaTypeName => schemaType.typeName; - /// Whether this schema uses strict primitive parsing. - /// - /// When true, only exact type matches are allowed. - /// When false, compatible types can be coerced (e.g., "42" → 42). - /// - /// Subclasses that support strictPrimitiveParsing should override this. - @protected - bool get strictPrimitiveParsing => false; + /// Returns a copy of this schema with runtime-side configuration replaced. + AckSchema withRuntimeConfig({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }); - @protected - SchemaResult parseAndValidate( - Object? inputValue, - SchemaContext context, - ) { - // Use centralized null handling - final nullResult = handleNullInput(inputValue, context); - if (nullResult != null) return nullResult; + /// Marks the schema as nullable. + AckSchema nullable({bool value = true}) { + if (isNullable == value) return this; + return withRuntimeConfig(isNullable: value); + } - // After null check, inputValue is guaranteed non-null - final nonNullInput = inputValue!; - final targetType = schemaType; + /// Marks the schema as optional so the field can be omitted from an object. + AckSchema optional({bool value = true}) { + if (isOptional == value) return this; + return withRuntimeConfig(isOptional: value); + } - // Get the actual type of the input, catching any errors to maintain - // the "never throws" guarantee of safeParse() - SchemaType actualType; - try { - actualType = AckSchema.getSchemaType(nonNullInput); - } catch (e) { - return SchemaResult.fail( - SchemaValidationError( - message: 'Unsupported input type: ${nonNullInput.runtimeType}', - context: context, - ), - ); - } + /// Sets the description for the schema. + AckSchema describe(String description) { + return withRuntimeConfig(description: description); + } - // Type compatibility check - if (!targetType.canAcceptFrom(actualType, strict: strictPrimitiveParsing)) { - return SchemaResult.fail( - TypeMismatchError( - expectedType: targetType, - actualType: actualType, - context: context, - ), - ); - } + /// Alias for [describe]. + @Deprecated('Use describe() instead. Will be removed in a future version.') + AckSchema withDescription(String description) { + return describe(description); + } - // Parse using SchemaType's parsing logic - final convertedResult = targetType.parse( - nonNullInput, - actualType, - context, + /// Wraps this schema in a [DefaultSchema] that supplies [defaultValue] when + /// the parse input is null. Object encode also injects encoded defaults for + /// missing default-wrapped fields. + DefaultSchema withDefault(Runtime defaultValue) { + return DefaultSchema( + inner: this, + defaultValue: defaultValue, ); - if (convertedResult.isFail) return convertedResult; + } - final convertedValue = convertedResult.getOrThrow()!; + /// Adds a validation constraint to the schema. + AckSchema withConstraint(Constraint constraint) { + return withRuntimeConfig(constraints: [...constraints, constraint]); + } - return applyConstraintsAndRefinements(convertedValue, context); + /// Adds validation constraints to the schema. + AckSchema withConstraints( + List> newConstraints, + ) { + return withRuntimeConfig(constraints: [...constraints, ...newConstraints]); } - /// Parses and validates a value, throwing an [AckException] if validation fails. - /// - /// This is the primary method for validation when you want exceptions. - /// For error handling without exceptions, use [safeParse] instead. - /// - /// Example: - /// ```dart - /// final email = emailSchema.parse(input); // throws if invalid - /// ``` - DartType? parse(Object? value, {String? debugName}) { + /// Adds a custom validation check that runs after all other validations have + /// passed for this schema. + AckSchema refine( + bool Function(Runtime value) validate, { + String message = 'The value did not pass the custom validation.', + }) { + final newRefinement = (validate: validate, message: message); + return withRuntimeConfig(refinements: [...refinements, newRefinement]); + } + + /// Adds a raw [constraint] to the schema. + AckSchema constrain( + Constraint constraint, { + String? message, + }) { + if (constraint is! Validator) { + throw ArgumentError( + 'Constraint ${constraint.runtimeType} must implement Validator.', + ); + } + final effectiveConstraint = message == null + ? constraint + : _ConstraintMessageOverride(constraint, message); + return withConstraint(effectiveConstraint); + } + + // --------------------------------------------------------------------------- + // Public API (thin wrappers around the internal lifecycle) + // --------------------------------------------------------------------------- + + /// Parses and validates a value, throwing an [AckException] if it fails. + Runtime? parse(Object? value, {String? debugName}) { final result = safeParse(value, debugName: debugName); return result.getOrThrow(); } /// Parses and validates a value, then maps the validated value to [TOut]. - /// - /// This method throws an [AckException] when validation fails (same as [parse]). - /// Mapper exceptions are wrapped into a [SchemaTransformError] and then thrown - /// as part of [AckException] for consistent error handling. TOut parseAs( Object? value, - TOut Function(DartType? validated) map, { + TOut Function(Runtime? validated) map, { String? debugName, }) { final result = safeParseAs(value, map, debugName: debugName); @@ -250,36 +405,19 @@ sealed class AckSchema { } /// Parses and validates a value, returning a [SchemaResult]. - /// - /// This method never throws exceptions. Instead, it returns a [SchemaResult] - /// which can be either [Ok] (success) or [Fail] (validation error). - /// - /// This is the primary method for validation when you want explicit error handling. - /// For throwing exceptions on error, use [parse] instead. - /// - /// Example: - /// ```dart - /// final result = emailSchema.safeParse(input); - /// if (result.isOk) { - /// final email = result.getOrNull(); - /// } else { - /// print('Error: ${result.getError()}'); - /// } - /// ``` - SchemaResult safeParse(Object? value, {String? debugName}) { - final context = _createRootContext(value, debugName: debugName); - return parseAndValidate(value, context); + SchemaResult safeParse(Object? value, {String? debugName}) { + final context = _createRootContext( + value, + debugName: debugName, + operation: SchemaOperation.parse, + ); + return parseWithContext(value, context); } /// Parses and validates a value, then maps the validated value to [TOut]. - /// - /// Validation failures are returned as [Fail] with the original schema error. - /// Mapper exceptions are caught and returned as [SchemaTransformError]. - /// - /// This method never throws exceptions. SchemaResult safeParseAs( Object? value, - TOut Function(DartType? validated) map, { + TOut Function(Runtime? validated) map, { String? debugName, }) { final result = safeParse(value, debugName: debugName); @@ -294,7 +432,11 @@ sealed class AckSchema { return SchemaResult.fail( SchemaTransformError( message: 'Transformation failed: ${e.toString()}', - context: _createRootContext(value, debugName: debugName), + context: _createRootContext( + value, + debugName: debugName, + operation: SchemaOperation.parse, + ), cause: e, stackTrace: st, ), @@ -302,103 +444,223 @@ sealed class AckSchema { } } - SchemaContext _createRootContext(Object? value, {String? debugName}) { - // Use provided debugName or derive from runtime type (e.g., "StringSchema" -> "string") + /// Encodes a runtime value to a boundary value, returning a [SchemaResult]. + /// + /// Null handling lives here so subclass [encodeWithContext] receives + /// non-null values. The null gate consults [acceptsEncodeNull] so + /// subclasses with branch-level null policies (e.g. [AnyOfSchema]) can + /// participate without overriding this public wrapper. + SchemaResult safeEncode(Runtime? value, {String? debugName}) { + final context = _createRootContext( + value, + debugName: debugName, + operation: SchemaOperation.encode, + ); + if (value == null) { + if (acceptsEncodeNull) return SchemaResult.ok(null); + return failNonNullableEncode(context); + } + try { + return encodeWithContext(value, context); + } catch (e, st) { + return SchemaResult.fail( + SchemaEncodeError.encoderThrew( + message: 'Encoder threw: ${e.toString()}', + context: context, + cause: e, + stackTrace: st, + ), + ); + } + } + + /// Encodes a runtime value to a boundary value, throwing on failure. + Boundary? encode(Runtime? value, {String? debugName}) { + final result = safeEncode(value, debugName: debugName); + return result.getOrThrow(); + } + + SchemaContext _createRootContext( + Object? value, { + String? debugName, + required SchemaOperation operation, + }) { final typeName = runtimeType .toString() .replaceFirst(RegExp(r'Schema$'), '') .toLowerCase(); final effectiveDebugName = debugName ?? typeName; - return SchemaContext(name: effectiveDebugName, schema: this, value: value); + return SchemaContext( + name: effectiveDebugName, + schema: this, + value: value, + operation: operation, + ); } /// Legacy alias for [safeParse]. @Deprecated('Use safeParse(...) instead.') - SchemaResult validate(Object? value, {String? debugName}) => + SchemaResult validate(Object? value, {String? debugName}) => safeParse(value, debugName: debugName); /// Legacy helper that returns the parsed value or `null` when validation fails. @Deprecated('Use safeParse(...).getOrNull() instead.') - DartType? tryParse(Object? value, {String? debugName}) { + Runtime? tryParse(Object? value, {String? debugName}) { final result = safeParse(value, debugName: debugName); return result.getOrNull(); } - AckSchema copyWith({ - bool? isNullable, - bool? isOptional, - String? description, - DartType? defaultValue, - List>? constraints, - List>? refinements, - }); - - /// Converts this schema to generic Draft-7 JSON Schema. - /// - /// The sealed [AckSchemaModel] boundary is the single source of truth for the - /// exported shape. Adapters should call [toSchemaModel] directly when they - /// need the typed intermediate model; this method renders that model as - /// generic JSON Schema rather than provider-specific schema metadata. - Map toJsonSchema() => toSchemaModel().toJsonSchema(); + /// Converts this schema to a JSON Schema Draft-7 representation. + Map toJsonSchema(); Map toMap() { return { 'type': schemaType.typeName, 'isNullable': isNullable, 'description': description, - 'defaultValue': defaultValue?.toString(), - 'constraints': constraints.map((c) => c.toMap()).toList(), + 'constraints': _constraints.map((c) => c.toMap()).toList(), }; } /// Compares base schema fields for equality. - /// - /// Subclasses should call this as part of their == implementation - /// after the identical() and type checks. @protected - bool baseFieldsEqual(AckSchema other) { - const listEq = ListEquality(); + bool baseFieldsEqual(AckSchema other) { + const iterableEq = IterableEquality(); return isNullable == other.isNullable && isOptional == other.isOptional && description == other.description && - defaultValue == other.defaultValue && - listEq.equals(_constraints, other._constraints) && - listEq.equals(_refinements, other._refinements); - } - - /// Compares base schema fields while erasing generic type parameters. - /// - /// Useful when structural equality should ignore reified type arguments. - @protected - bool baseFieldsEqualErased(AckSchema other) { - const listEq = ListEquality(); - return isNullable == other.isNullable && - isOptional == other.isOptional && - description == other.description && - defaultValue == other.defaultValue && - listEq.equals( - _constraints as List, - other._constraints as List, + iterableEq.equals( + _constraintsForEquality, + other._constraintsForEquality, ) && - listEq.equals( - _refinements as List, - other._refinements as List, + iterableEq.equals( + _refinementsForEquality, + other._refinementsForEquality, ); } /// Computes hash code for base schema fields. - /// - /// Subclasses should include this in their hashCode computation. @protected int get baseFieldsHashCode { - const listEq = ListEquality(); + const iterableEq = IterableEquality(); return Object.hash( isNullable, isOptional, description, - defaultValue, - listEq.hash(_constraints), - listEq.hash(_refinements), + iterableEq.hash(_constraintsForEquality), + iterableEq.hash(_refinementsForEquality), + ); + } +} + +/// Builds a type-mismatch error without throwing when [actualValue] is an +/// unsupported Dart runtime object outside ACK's JSON-ish schema categories. +SchemaError _buildTypeMismatch({ + required SchemaType expectedType, + required Object? actualValue, + required SchemaContext context, +}) { + final actualType = SchemaType.tryOf(actualValue); + if (actualType == null) { + return SchemaValidationError( + message: + 'Expected ${expectedType.typeName}, got ${actualValue.runtimeType}.', + context: context, ); } + + return TypeMismatchError( + expectedType: expectedType, + actualType: actualType, + context: context, + ); +} + +class _ConstraintMessageOverride extends Constraint + with Validator, JsonSchemaSpec { + _ConstraintMessageOverride(this.inner, this.customMessage) + : super(constraintKey: inner.constraintKey, description: inner.description); + + final Constraint inner; + final String customMessage; + + Validator get _validator => inner as Validator; + + @override + bool isValid(T value) => _validator.isValid(value); + + @override + String buildMessage(T value) => customMessage; + + @override + Map buildContext(T value) { + return _validator.buildContext(value); + } + + @override + Map toJsonSchema() { + if (inner is JsonSchemaSpec) { + return (inner as JsonSchemaSpec).toJsonSchema(); + } + return const {}; + } } + +/// Returns [value] if it is composed entirely of JSON-safe primitives +/// (`null`, finite `num`, `bool`, `String`, `List`, string-keyed `Map`), +/// recursively. +/// Returns `null` if any nested value is not JSON-safe. Used by +/// [DefaultSchema] to avoid emitting runtime-only objects (e.g. raw +/// `DateTime` instances) as JSON Schema defaults. +Object? _jsonSafeOrNull(Object? value) { + if (value == null) return null; + if (value is num) return value.isFinite ? value : null; + if (value is bool || value is String) return value; + if (value is List) { + final result = []; + for (final item in value) { + if (item == null) { + result.add(null); + continue; + } + final converted = _jsonSafeOrNull(item); + if (converted == null) return null; + result.add(converted); + } + return result; + } + if (value is Map) { + final result = {}; + for (final entry in value.entries) { + if (entry.key is! String) return null; + if (entry.value == null) { + result[entry.key as String] = null; + continue; + } + final converted = _jsonSafeOrNull(entry.value); + if (converted == null) return null; + result[entry.key as String] = converted; + } + return result; + } + return null; +} + +/// Safely converts a value into a [JsonMap]. Returns `null` if the value is +/// not map-shaped or contains non-string keys. This eager check replaces +/// `cast()`, whose lazy semantics can throw at access time +/// when a non-string key is hit. +JsonMap? jsonMapOrNull(Object? value) { + if (value == null) return null; + if (value is JsonMap) return value; + if (value is! Map) return null; + final result = {}; + for (final entry in value.entries) { + if (entry.key is! String) return null; + result[entry.key as String] = entry.value; + } + return result; +} + +@Deprecated('Use jsonMapOrNull(...) instead.') +JsonMap? coerceJsonMap(Object? value) => jsonMapOrNull(value); diff --git a/packages/ack/lib/src/schemas/schema_type.dart b/packages/ack/lib/src/schemas/schema_type.dart index 5b1e0fcd..9a6c7f88 100644 --- a/packages/ack/lib/src/schemas/schema_type.dart +++ b/packages/ack/lib/src/schemas/schema_type.dart @@ -1,44 +1,15 @@ part of 'schema.dart'; -/// Schema type enumeration covering JSON primitives and schema-specific categories. +/// Schema type enumeration covering JSON primitives and schema-specific +/// categories. /// -/// Unifies type detection, coercion rules, and schema categorization so validation, -/// JSON Schema export, and error messages share a single source of truth. -/// -/// ## Type Categories -/// -/// **JSON Primitives**: string, integer, number, boolean, object, array, null_ -/// **Schema-Specific**: any, anyOf, enum_, discriminated -/// -/// ## Type Conversion Matrix -/// -/// ### Loose Mode (strict: false) - Default -/// | Target | Accepts From | Notes | -/// |----------|----------------------------------|---------------------------------------------| -/// | integer | integer, number, string | number→integer: lossless only (42.0→42) | -/// | number | number, integer, string | integer→number: always allowed (42→42.0) | -/// | boolean | boolean, string | string: "true"/"false" (case-insensitive) | -/// | string | string, integer, number, boolean| via .toString() | -/// | object | object | no coercion | -/// | array | array | no coercion | -/// | null_ | null_ | no coercion | -/// -/// ### Strict Mode (strict: true) -/// | Target | Accepts From | Notes | -/// |----------|-----------------|-------------------------------------------| -/// | number | number, integer | integer→number per JSON Schema semantics | -/// | * | exact type only | all other conversions disabled | -/// -/// Example: -/// ```dart -/// SchemaType.integer.canAcceptFrom(SchemaType.string, strict: false); // true -/// SchemaType.integer.parse('42', SchemaType.string, context); // Ok(42) -/// ``` +/// ACK primitives are strict. Use codecs or transforms when boundary data +/// needs to be converted into a different runtime shape. enum SchemaType { - string('string', supportsCoercion: true), - integer('integer', supportsCoercion: true), - number('number', supportsCoercion: true), - boolean('boolean', supportsCoercion: true), + string('string'), + integer('integer'), + number('number'), + boolean('boolean'), object('object'), array('array'), null_('null'), @@ -47,84 +18,19 @@ enum SchemaType { enum_('enum'), discriminated('discriminated'); - const SchemaType(this.typeName, {this.supportsCoercion = false}); + const SchemaType(this.typeName); /// The string representation used in JSON Schema and error messages. final String typeName; - /// Whether this type supports coercion from other types in loose mode. - final bool supportsCoercion; - - /// Determines if this type can accept/parse values from [sourceType]. - /// - /// When [strict] is true, only exact type matches are allowed (except number ← integer). - /// When [strict] is false, primitive types can parse from compatible types. - bool canAcceptFrom(SchemaType sourceType, {required bool strict}) { - if (this == sourceType) return true; - - return switch (this) { - SchemaType.integer => - !strict && - (sourceType == SchemaType.number || - sourceType == SchemaType.string), - SchemaType.string => - !strict && - (sourceType == SchemaType.integer || - sourceType == SchemaType.number || - sourceType == SchemaType.boolean), - SchemaType.boolean => !strict && sourceType == SchemaType.string, - SchemaType.number => - sourceType == SchemaType.integer || - (!strict && sourceType == SchemaType.string), - _ => false, - }; - } - - /// Parses [value] from [sourceType] into this type. - /// - /// Precondition: [canAcceptFrom] must already have returned true. - SchemaResult parse( - Object value, - SchemaType sourceType, - SchemaContext context, - ) { - if (this == sourceType) { - return SchemaResult.ok(value as T); - } - - return switch ((this, sourceType, value)) { - // integer conversions - (SchemaType.integer, SchemaType.number, double d) => - _convertDoubleToInt(d, context) as SchemaResult, - (SchemaType.integer, SchemaType.string, String s) => - _parseIntFromString(s, context) as SchemaResult, - - // number conversions - (SchemaType.number, SchemaType.integer, int i) => SchemaResult.ok( - i.toDouble() as T, - ), - (SchemaType.number, SchemaType.string, String s) => - _parseDoubleFromString(s, context) as SchemaResult, - - // boolean conversions - (SchemaType.boolean, SchemaType.string, String s) => - _parseBoolFromString(s, context) as SchemaResult, - - // string conversions (accepts anything) - (SchemaType.string, _, Object v) => SchemaResult.ok(v.toString() as T), - - // unsupported conversion - _ => SchemaResult.fail( - SchemaValidationError( - message: 'Cannot parse ${sourceType.typeName} to $typeName', - context: context, - ), - ), - }; - } - /// Infers the [SchemaType] for [value]. - static SchemaType of(Object? value) => switch (value) { + static SchemaType of(Object? value) => + tryOf(value) ?? + (throw ArgumentError('Unknown schema type for value: $value')); + + /// Infers the [SchemaType] for [value], or returns `null` for unsupported + /// Dart runtime objects outside ACK's JSON-ish schema categories. + static SchemaType? tryOf(Object? value) => switch (value) { null => SchemaType.null_, Map() => SchemaType.object, List() => SchemaType.array, @@ -133,64 +39,6 @@ enum SchemaType { bool() => SchemaType.boolean, int() => SchemaType.integer, num() => SchemaType.number, - _ => throw ArgumentError('Unknown schema type for value: $value'), + _ => null, }; - - static SchemaResult _convertDoubleToInt( - double value, - SchemaContext context, - ) { - if (value.isFinite && value == value.truncate()) { - return SchemaResult.ok(value.toInt()); - } - return SchemaResult.fail( - SchemaValidationError( - message: 'Cannot convert $value to integer without losing precision.', - context: context, - ), - ); - } - - static SchemaResult _parseIntFromString( - String value, - SchemaContext context, - ) { - final parsed = int.tryParse(value); - if (parsed != null) return SchemaResult.ok(parsed); - return SchemaResult.fail( - SchemaValidationError( - message: 'Cannot convert "$value" to integer.', - context: context, - ), - ); - } - - static SchemaResult _parseDoubleFromString( - String value, - SchemaContext context, - ) { - final parsed = double.tryParse(value); - if (parsed != null) return SchemaResult.ok(parsed); - return SchemaResult.fail( - SchemaValidationError( - message: 'Cannot convert "$value" to number.', - context: context, - ), - ); - } - - static SchemaResult _parseBoolFromString( - String value, - SchemaContext context, - ) { - final normalized = value.trim().toLowerCase(); - if (normalized == 'true') return SchemaResult.ok(true); - if (normalized == 'false') return SchemaResult.ok(false); - return SchemaResult.fail( - SchemaValidationError( - message: 'Cannot convert "$value" to boolean.', - context: context, - ), - ); - } } diff --git a/packages/ack/lib/src/schemas/string_schema.dart b/packages/ack/lib/src/schemas/string_schema.dart index 7f13466b..c64d0ec6 100644 --- a/packages/ack/lib/src/schemas/string_schema.dart +++ b/packages/ack/lib/src/schemas/string_schema.dart @@ -1,70 +1,80 @@ part of 'schema.dart'; /// Schema for validating string values. -/// -/// Provides fluent methods for common string validations like length constraints, -/// format checks (email, URL, UUID), and pattern matching. -/// -/// Example: -/// ```dart -/// final emailSchema = Ack.string().email().minLength(5); -/// final result = emailSchema.safeParse('user@example.com'); // Ok -/// ``` -/// -/// See also: [StringSchemaExtensions] for available validation methods. @immutable -final class StringSchema extends AckSchema - with FluentSchema { - @override - final bool strictPrimitiveParsing; - +final class StringSchema extends AckSchema + with FluentSchema { const StringSchema({ super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, - this.strictPrimitiveParsing = false, }); @override SchemaType get schemaType => SchemaType.string; - /// Creates a new [StringSchema] that enforces strict parsing. - StringSchema strictParsing({bool value = true}) => - copyWith(strictPrimitiveParsing: value); + @override + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context) => + validateRuntimeWithContext(value, context); + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + + if (value is! String) { + return SchemaResult.fail( + _buildTypeMismatch( + expectedType: schemaType, + actualValue: value, + context: context, + ), + ); + } + + return applyConstraintsAndRefinements(value, context); + } + + @override + @protected + SchemaResult encodeWithContext(String value, SchemaContext context) => + encodeAsBoundary(value, context); @override StringSchema copyWith({ bool? isNullable, bool? isOptional, String? description, - String? defaultValue, List>? constraints, List>? refinements, - bool? strictPrimitiveParsing, }) { return StringSchema( isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, - strictPrimitiveParsing: - strictPrimitiveParsing ?? this.strictPrimitiveParsing, ); } + @override + Map toJsonSchema() => + buildJsonSchemaWithNullable(typeSchema: {'type': 'string'}); + @override bool operator ==(Object other) { if (identical(this, other)) return true; if (other is! StringSchema) return false; - return baseFieldsEqual(other) && - strictPrimitiveParsing == other.strictPrimitiveParsing; + return baseFieldsEqual(other); } @override - int get hashCode => Object.hash(baseFieldsHashCode, strictPrimitiveParsing); + int get hashCode => baseFieldsHashCode; } diff --git a/packages/ack/lib/src/schemas/testing/testing_schemas.dart b/packages/ack/lib/src/schemas/testing/testing_schemas.dart index 32cab36f..78c49aa3 100644 --- a/packages/ack/lib/src/schemas/testing/testing_schemas.dart +++ b/packages/ack/lib/src/schemas/testing/testing_schemas.dart @@ -1,17 +1,14 @@ part of 'package:ack/src/schemas/schema.dart'; -/// Testing-only schema used to simulate unsupported conversions in integration packages. -/// -/// This lives alongside the core schema types so it can extend [AckSchema], which is -/// sealed and therefore only extensible within this library. Marked as -/// `@visibleForTesting` to discourage production use. +/// Testing-only schema used to simulate unsupported conversions in +/// integration packages. @visibleForTesting -final class TestUnsupportedAckSchema extends AckSchema { +final class TestUnsupportedAckSchema extends AckSchema + with FluentSchema { const TestUnsupportedAckSchema({ super.isNullable, super.isOptional, super.description, - super.defaultValue, super.constraints, super.refinements, }); @@ -19,12 +16,32 @@ final class TestUnsupportedAckSchema extends AckSchema { @override SchemaType get schemaType => SchemaType.any; + @override + @protected + SchemaResult parseWithContext(Object? value, SchemaContext context) => + validateRuntimeWithContext(value, context); + + @override + @protected + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + return applyConstraintsAndRefinements(value!, context); + } + + @override + @protected + SchemaResult encodeWithContext(Object value, SchemaContext context) => + encodeAsBoundary(value, context); + @override TestUnsupportedAckSchema copyWith({ bool? isNullable, bool? isOptional, String? description, - Object? defaultValue, List>? constraints, List>? refinements, }) { @@ -32,12 +49,14 @@ final class TestUnsupportedAckSchema extends AckSchema { isNullable: isNullable ?? this.isNullable, isOptional: isOptional ?? this.isOptional, description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, constraints: constraints ?? this.constraints, refinements: refinements ?? this.refinements, ); } + @override + Map toJsonSchema() => const {'type': 'string'}; + @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/lib/src/schemas/transformed_schema.dart b/packages/ack/lib/src/schemas/transformed_schema.dart deleted file mode 100644 index b6811fd7..00000000 --- a/packages/ack/lib/src/schemas/transformed_schema.dart +++ /dev/null @@ -1,162 +0,0 @@ -part of 'schema.dart'; - -/// Schema that transforms validated data from one type to another. -/// -/// Created using the [transform] extension method on any schema. First validates -/// the input against the base schema, then applies the transformation function. -/// -/// ```dart -/// // Parse ISO date strings into DateTime objects -/// final dateSchema = Ack.string() -/// .datetime() -/// .transform((s) => DateTime.parse(s)); -/// ``` -/// -/// ## Default Values -/// -/// Default values for TransformedSchema are of type `OutputType` (post-transformation), -/// not `InputType`. When providing collection defaults with parameterized types -/// (e.g., `List`), be aware that cloning may not preserve the exact type: -/// -/// ```dart -/// // This works - primitive defaults are safely cloned -/// final schema = Ack.string() -/// .transform((v) => v) -/// .copyWith(defaultValue: 'hello'); -/// -/// // Limitation: List defaults may not be cloned (mutation risk) -/// // The implementation falls back to using the original default if cloning -/// // produces an incompatible type. For immutable defaults, this is safe. -/// ``` -/// -/// For complex collection defaults, consider using immutable collections or -/// accepting that the default may be shared across parse calls. -@immutable -class TransformedSchema - extends AckSchema { - final AckSchema schema; - final OutputType Function(InputType) transformer; - - TransformedSchema( - this.schema, - this.transformer, { - super.isNullable, - super.isOptional, - super.description, - super.defaultValue, - super.constraints, - super.refinements, - }); - - // NOTE: TransformedSchema intentionally does NOT use the centralized - // handleNullInput pattern. This is because: - // 1. defaultValue is of type OutputType (post-transformation), not InputType - // 2. Using handleNullInput would route the default through parseAndValidate, - // which would try to validate OutputType through the InputType inner schema - // 3. Instead, we handle null/default inline and clone the default manually - @override - @protected - SchemaResult parseAndValidate( - Object? inputValue, - SchemaContext context, - ) { - // Handle defaults before delegation, since wrapped schemas may reject null. - // If cloning loses generic type information, fall back to the original value. - if (inputValue == null && defaultValue != null) { - final cloned = cloneDefault(defaultValue!); - final safeDefault = (cloned is OutputType) ? cloned : defaultValue!; - return applyConstraintsAndRefinements(safeDefault, context); - } - - // Delegate validation/parsing to the wrapped schema for all other cases. - final originalResult = schema.parseAndValidate(inputValue, context); - if (originalResult.isFail) { - return SchemaResult.fail(originalResult.getError()); - } - - final validatedValue = originalResult.getOrNull(); - - // Null passes through without hitting the transformer when this schema - // itself is nullable. Outer nullability still applies even if the wrapped - // schema can accept null. Constraints and refinements on the transformed - // schema are typed OutputType (extends Object) and cannot accept null, - // so they must be skipped here. - if (validatedValue == null) { - if (!isNullable) { - return failNonNullable(context); - } - return SchemaResult.ok(null); - } - - try { - final transformedValue = transformer(validatedValue); - - return applyConstraintsAndRefinements(transformedValue, context); - } catch (e, st) { - return SchemaResult.fail( - SchemaTransformError( - message: 'Transformation failed: ${e.toString()}', - context: context, - cause: e, - stackTrace: st, - ), - ); - } - } - - @override - SchemaType get schemaType => schema.schemaType; - - @override - bool get strictPrimitiveParsing => schema.strictPrimitiveParsing; - - @override - TransformedSchema copyWith({ - bool? isNullable, - bool? isOptional, - String? description, - OutputType? defaultValue, - List>? constraints, - List>? refinements, - }) { - return TransformedSchema( - schema, - transformer, - isNullable: isNullable ?? this.isNullable, - isOptional: isOptional ?? this.isOptional, - description: description ?? this.description, - defaultValue: defaultValue ?? this.defaultValue, - constraints: constraints ?? this.constraints, - refinements: refinements ?? this.refinements, - ); - } - - /// Returns a copy of this transformed schema with a different input schema. - TransformedSchema copyWithSchema( - AckSchema schema, - ) { - return TransformedSchema( - schema, - transformer, - isNullable: isNullable, - isOptional: isOptional, - description: description, - defaultValue: defaultValue, - constraints: constraints, - refinements: refinements, - ); - } - - @override - bool operator ==(Object other) { - if (identical(this, other)) return true; - if (other is! TransformedSchema) return false; - return baseFieldsEqual(other) && - schema == other.schema && - identical(transformer, other.transformer); - } - - @override - int get hashCode => - Object.hash(baseFieldsHashCode, schema, transformer.hashCode); -} diff --git a/packages/ack/lib/src/schemas/wrapper_schema.dart b/packages/ack/lib/src/schemas/wrapper_schema.dart new file mode 100644 index 00000000..489b2107 --- /dev/null +++ b/packages/ack/lib/src/schemas/wrapper_schema.dart @@ -0,0 +1,156 @@ +part of 'schema.dart'; + +/// Shared contract for schemas that add runtime behavior around an inner +/// boundary-facing schema. +/// +/// Wrappers keep their own runtime-side configuration and delegate boundary +/// shape traversal to [inner]. Converters can follow [inner] to recover the +/// encoded JSON shape, then merge wrapper-owned metadata such as description, +/// nullability, defaults, and generated marker fields. +mixin WrapperSchema< + Boundary extends Object, + Runtime extends Object, + Schema extends AckSchema +> + on AckSchema { + /// The wrapped schema used for boundary-shape traversal. + AnyAckSchema get inner; + + /// Returns a copy with runtime-side configuration replaced. + @protected + Schema copyWithRuntimeConfig({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }); + + /// Returns a copy with runtime-side configuration replaced. + @override + Schema withRuntimeConfig({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + return copyWithRuntimeConfig( + isNullable: isNullable, + isOptional: isOptional, + description: description, + constraints: constraints, + refinements: refinements, + ); + } + + /// Marks the schema as nullable. + @override + Schema nullable({bool value = true}) { + return copyWithRuntimeConfig(isNullable: value); + } + + /// Marks the schema as optional so the field can be omitted from an object. + @override + Schema optional({bool value = true}) { + return copyWithRuntimeConfig(isOptional: value); + } + + /// Sets the description for the schema. + @override + Schema describe(String description) { + return copyWithRuntimeConfig(description: description); + } + + /// Alias for [describe]. + @Deprecated('Use describe() instead. Will be removed in a future version.') + @override + Schema withDescription(String description) { + return describe(description); + } + + /// Adds a validation constraint to the schema. + @override + Schema withConstraint(Constraint constraint) { + return copyWithRuntimeConfig(constraints: [...constraints, constraint]); + } + + /// Adds validation constraints to the schema. + @override + Schema withConstraints(List> newConstraints) { + return copyWithRuntimeConfig( + constraints: [...constraints, ...newConstraints], + ); + } + + /// Adds a custom validation check that runs after all other validations. + @override + Schema refine( + bool Function(Runtime value) validate, { + String message = 'The value did not pass the custom validation.', + }) { + final newRefinement = (validate: validate, message: message); + return copyWithRuntimeConfig(refinements: [...refinements, newRefinement]); + } + + /// Adds a raw [constraint] to the schema. + @override + Schema constrain(Constraint constraint, {String? message}) { + if (constraint is! Validator) { + throw ArgumentError( + 'Constraint ${constraint.runtimeType} must implement Validator.', + ); + } + final effectiveConstraint = message == null + ? constraint + : _ConstraintMessageOverride(constraint, message); + return withConstraint(effectiveConstraint); + } + + /// Applies wrapper-owned JSON Schema metadata to an inner boundary schema. + @protected + Map applyWrapperJsonSchemaMetadata( + Map baseSchema, { + Object? serializedDefault, + Map metadata = const {}, + }) { + // Precedence is intentional: inner boundary schema first, generated + // wrapper metadata second, then user-facing wrapper description last. + final branchSchema = mergeConstraintSchemas({ + ...baseSchema, + ...metadata, + if (description != null) 'description': description, + }); + + if (!isNullable || _jsonSchemaHasNullBranch(branchSchema)) { + return { + ...branchSchema, + if (serializedDefault != null) 'default': serializedDefault, + }; + } + + return { + if (description != null) 'description': description, + if (serializedDefault != null) 'default': serializedDefault, + 'anyOf': [ + branchSchema, + {'type': 'null'}, + ], + }; + } +} + +bool _jsonSchemaHasNullBranch(Map schema) { + if (schema['type'] == 'null') return true; + + return _jsonSchemaCompositionHasNullBranch(schema['anyOf']) || + _jsonSchemaCompositionHasNullBranch(schema['oneOf']); +} + +bool _jsonSchemaCompositionHasNullBranch(Object? composition) { + if (composition is! List) return false; + return composition.any( + (branch) => + branch is Map && _jsonSchemaHasNullBranch(branch), + ); +} diff --git a/packages/ack/lib/src/utils/discriminated_branch_utils.dart b/packages/ack/lib/src/utils/discriminated_branch_utils.dart index 87390df7..55dfe76b 100644 --- a/packages/ack/lib/src/utils/discriminated_branch_utils.dart +++ b/packages/ack/lib/src/utils/discriminated_branch_utils.dart @@ -1,109 +1,32 @@ -import '../constraints/pattern_constraint.dart'; import '../constraints/string_literal_constraint.dart'; import '../schemas/schema.dart'; -StringSchema _discriminatorLiteralSchema(String discriminatorValue) { - return StringSchema( - constraints: [StringLiteralConstraint(discriminatorValue)], - ); -} - -/// Returns whether [propertySchema] accepts [discriminatorValue]. +/// Returns the underlying branch schema by unwrapping wrapper layers. /// -/// This compatibility check is structural and side-effect-free. It deliberately -/// does not parse the discriminator value because parsing can execute user -/// transforms/refinements during branch selection or schema export. -bool discriminatorPropertyAcceptsValue({ - required AckSchema propertySchema, - required String discriminatorValue, -}) { - if (propertySchema is! StringSchema) return false; - if (propertySchema.refinements.isNotEmpty) return false; - if (propertySchema.constraints.length != 1) return false; - - final constraint = propertySchema.constraints.single; - if (constraint is StringLiteralConstraint) { - return constraint.expectedValue == discriminatorValue; - } - - if (constraint is PatternConstraint && - constraint.type == PatternType.enumString) { - return constraint.allowedValues?.contains(discriminatorValue) ?? false; +/// Discriminated branches may be wrapped while still being object-backed at +/// their core. +AnyAckSchema unwrapDiscriminatedBranchSchema(AnyAckSchema schema) { + AnyAckSchema current = schema; + while (current is WrapperSchema) { + current = current.inner; } - return false; + return current; } -/// Builds the effective object branch for a discriminated-union value. +/// Returns `true` when [schema] declares a [StringLiteralConstraint] whose +/// [StringLiteralConstraint.expectedValue] matches [label]. /// -/// The returned object schema always contains [discriminatorKey] first, as an -/// exact string literal matching [discriminatorValue]. The authored schema is -/// never mutated. -ObjectSchema effectiveDiscriminatedObjectBranch({ - required String discriminatorKey, - required String discriminatorValue, - required ObjectSchema objectSchema, -}) { - final existingDiscriminator = objectSchema.properties[discriminatorKey]; - if (existingDiscriminator != null && - !discriminatorPropertyAcceptsValue( - propertySchema: existingDiscriminator, - discriminatorValue: discriminatorValue, - )) { - throw ArgumentError( - 'Discriminator property "$discriminatorKey" does not accept ' - 'branch value "$discriminatorValue".', - ); - } - - final properties = { - discriminatorKey: _discriminatorLiteralSchema(discriminatorValue), - for (final entry in objectSchema.properties.entries) - if (entry.key != discriminatorKey) entry.key: entry.value, - }; - - return objectSchema.copyWith(properties: properties); -} - -/// Builds the effective schema for a discriminated-union branch. -/// -/// Supports plain object branches and direct object-backed transforms. The -/// effective schema validates/exports with a union-injected literal -/// discriminator while preserving the branch output type. -AckSchema effectiveDiscriminatedBranch({ - required String discriminatorKey, - required String discriminatorValue, - required AckSchema branchSchema, -}) { - return _effectiveDiscriminatedBranch( - discriminatorKey: discriminatorKey, - discriminatorValue: discriminatorValue, - branchSchema: branchSchema, - ) - as AckSchema; -} - -AckSchema _effectiveDiscriminatedBranch({ - required String discriminatorKey, - required String discriminatorValue, - required AckSchema branchSchema, -}) { - if (branchSchema is ObjectSchema) { - return effectiveDiscriminatedObjectBranch( - discriminatorKey: discriminatorKey, - discriminatorValue: discriminatorValue, - objectSchema: branchSchema, - ); - } - - if (branchSchema is TransformedSchema) { - final effectiveInputSchema = _effectiveDiscriminatedBranch( - discriminatorKey: discriminatorKey, - discriminatorValue: discriminatorValue, - branchSchema: branchSchema.schema, - ); - return branchSchema.copyWithSchema(effectiveInputSchema); - } - - throw ArgumentError('Discriminated branches must be object-backed schemas'); +/// Used to enforce the branch-owned discriminator policy: each branch in a +/// `Ack.discriminated(...)` schema must define the discriminator field with +/// `Ack.literal(label)`. Multiple literal constraints are allowed only when +/// every one of them matches [label]. +bool hasMatchingDiscriminatorLiteral(AnyAckSchema schema, String label) { + final base = unwrapDiscriminatedBranchSchema(schema); + final literals = base.constraints + .whereType() + .toList(growable: false); + + return literals.isNotEmpty && + literals.every((constraint) => constraint.expectedValue == label); } diff --git a/packages/ack/lib/src/validation/schema_error.dart b/packages/ack/lib/src/validation/schema_error.dart index 0e365d1c..b90b6406 100644 --- a/packages/ack/lib/src/validation/schema_error.dart +++ b/packages/ack/lib/src/validation/schema_error.dart @@ -19,7 +19,7 @@ abstract class SchemaError { }); String get name => context.name; - AckSchema get schema => context.schema; + AnyAckSchema get schema => context.schema; Object? get value => context.value; String get path => context.path; @@ -143,3 +143,108 @@ final class SchemaTransformError extends SchemaError { super.stackTrace, }) : super(message); } + +/// Categorizes encode-side failures so callers can react programmatically. +enum SchemaEncodeFailureKind { + nonNullable, + typeMismatch, + oneWayTransform, + encoderThrew, + missingRequiredProperty, + unexpectedProperty, +} + +/// Errors raised during the encode path (Runtime → Boundary). +@immutable +final class SchemaEncodeError extends SchemaError { + final SchemaEncodeFailureKind kind; + final String? propertyKey; + + const SchemaEncodeError._({ + required this.kind, + required String message, + required super.context, + super.cause, + super.stackTrace, + this.propertyKey, + }) : super(message); + + factory SchemaEncodeError.nonNullable({required SchemaContext context}) { + return SchemaEncodeError._( + kind: SchemaEncodeFailureKind.nonNullable, + message: 'Cannot encode null value for non-nullable schema.', + context: context, + ); + } + + factory SchemaEncodeError.typeMismatch({ + required String message, + required SchemaContext context, + }) { + return SchemaEncodeError._( + kind: SchemaEncodeFailureKind.typeMismatch, + message: message, + context: context, + ); + } + + factory SchemaEncodeError.oneWayTransform({ + required SchemaContext context, + String message = + 'This schema is a one-way transform and does not support encode.', + }) { + return SchemaEncodeError._( + kind: SchemaEncodeFailureKind.oneWayTransform, + message: message, + context: context, + ); + } + + factory SchemaEncodeError.encoderThrew({ + required String message, + required SchemaContext context, + Object? cause, + StackTrace? stackTrace, + }) { + return SchemaEncodeError._( + kind: SchemaEncodeFailureKind.encoderThrew, + message: message, + context: context, + cause: cause, + stackTrace: stackTrace, + ); + } + + factory SchemaEncodeError.missingRequiredProperty({ + required String propertyKey, + required SchemaContext context, + }) { + return SchemaEncodeError._( + kind: SchemaEncodeFailureKind.missingRequiredProperty, + message: 'Required property "$propertyKey" missing from encoded value.', + context: context, + propertyKey: propertyKey, + ); + } + + factory SchemaEncodeError.unexpectedProperty({ + required String propertyKey, + required SchemaContext context, + }) { + return SchemaEncodeError._( + kind: SchemaEncodeFailureKind.unexpectedProperty, + message: 'Unexpected property "$propertyKey" in encoded value.', + context: context, + propertyKey: propertyKey, + ); + } + + @override + Map toMap() { + return { + ...super.toMap(), + 'encodeKind': kind.name, + if (propertyKey != null) 'propertyKey': propertyKey, + }; + } +} From 7999ee3188d0fe3e1524f1f485f90abe54cfe9e4 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 20 May 2026 17:31:42 -0400 Subject: [PATCH 02/53] fix(ack): wire typed-codecs onto AckSchemaModel boundary - Add copyWithInner to WrapperSchema mixin + CodecSchema/DefaultSchema - Adapt main's effectiveDiscriminatedBranch util to walk WrapperSchema instead of TransformedSchema; add discriminatorPropertyAcceptsValue and effectiveDiscriminatedObjectBranch helpers - Loosen DiscriminatedObjectSchema constructor for union-owned discriminator: branches without the discriminator are allowed (union synthesizes literal); branches with it must accept the label - Add effectiveBranch method to DiscriminatedObjectSchema - Update ack_schema_model_builder: DefaultSchema precheck for defaults, generic WrapperSchema precheck, InstanceSchema case - Drop legacy _withDefaultAndWarnings base-schema defaultValue access Library compiles cleanly (dart analyze lib: no issues found). Tests still pending. --- .../ack_schema_model_builder.dart | 95 ++++++++++++------ .../ack/lib/src/schemas/codec_schema.dart | 16 +++ .../ack/lib/src/schemas/default_schema.dart | 11 +++ .../schemas/discriminated_object_schema.dart | 44 ++++++--- .../ack/lib/src/schemas/wrapper_schema.dart | 7 ++ .../src/utils/discriminated_branch_utils.dart | 99 +++++++++++++++++++ 6 files changed, 231 insertions(+), 41 deletions(-) diff --git a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart index 48d560ae..038219a7 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart @@ -12,9 +12,25 @@ extension AckSchemaModelExtension on AckSchema { } AckSchemaModel _build(AckSchema schema) { - if (schema is TransformedSchema) { - final base = _build(schema.schema); - final transformed = _applyConstraints( + if (schema is DefaultSchema) { + final base = _build(schema.inner); + final exportDefault = _defaultExportValueOrNull(schema); + if (exportDefault != null) { + return base.withDefaultValue(exportDefault); + } + return base.withWarnings([ + ...base.warnings, + AckSchemaModelWarning( + code: 'default_not_export_safe', + message: + 'Schema default was omitted because it cannot be represented safely in exported JSON-compatible schema models.', + ), + ]); + } + + if (schema is WrapperSchema) { + final base = _build(schema.inner); + return _applyConstraints( base .withDescription(schema.description ?? base.description) .withNullable(schema.isNullable || base.nullable) @@ -22,7 +38,6 @@ AckSchemaModel _build(AckSchema schema) { schema, boundaryFormat: base.format, ); - return _withDefaultAndWarnings(transformed, schema); } final model = switch (schema) { @@ -35,13 +50,14 @@ AckSchemaModel _build(AckSchema schema) { ObjectSchema() => _object(schema), AnyOfSchema() => _anyOf(schema), AnySchema() => _any(schema), + InstanceSchema() => _instance(schema), DiscriminatedObjectSchema() => _discriminated(schema), _ => throw UnsupportedError( 'Schema type ${schema.runtimeType} is not supported for AckSchemaModel conversion.', ), }; - return _withDefaultAndWarnings(_applyConstraints(model, schema), schema); + return _applyConstraints(model, schema); } AckSchemaModel _string(StringSchema schema) { @@ -130,6 +146,31 @@ AckSchemaModel _anyOf(AnyOfSchema schema) { ); } +AckSchemaModel _instance(InstanceSchema schema) { + // InstanceSchema accepts arbitrary Dart instances of a runtime type with no + // direct JSON representation. Adapters that flow through a codec see the + // boundary schema instead; this is the fallback for a bare instance. + return AckAnyOfSchemaModel( + schemas: [ + AckStringSchemaModel(description: schema.description), + AckNumberSchemaModel(description: schema.description), + AckIntegerSchemaModel(description: schema.description), + AckBooleanSchemaModel(description: schema.description), + AckObjectSchemaModel(description: schema.description), + AckArraySchemaModel(description: schema.description), + ], + nullable: schema.isNullable, + description: schema.description, + warnings: const [ + AckSchemaModelWarning( + code: 'ack_instance_json_boundary', + message: + 'Ack.instance() accepts arbitrary Dart instances at runtime; JSON-like adapters can only represent JSON-compatible values.', + ), + ], + ); +} + AckSchemaModel _any(AnySchema schema) { final description = schema.description; final primitiveBranches = [ @@ -237,32 +278,26 @@ AckSchemaModel _applyDateTimeConstraint( ]); } -AckSchemaModel _withDefaultAndWarnings(AckSchemaModel model, AckSchema schema) { +/// Best-effort export of a [DefaultSchema] default value. +/// +/// Encodes the runtime default through the wrapped schema so codec +/// transformations are applied, then verifies the result is JSON-safe before +/// returning it. Returns `null` when no JSON-safe representation is reachable. +Object? _defaultExportValueOrNull(DefaultSchema schema) { final defaultValue = schema.defaultValue; - if (defaultValue == null) return model; - - final exportDefault = _exportSafeDefaultOrNull(schema, defaultValue); - if (exportDefault != null) { - return model.withDefaultValue(exportDefault); - } - - return model.withWarnings([ - ...model.warnings, - AckSchemaModelWarning( - code: 'default_not_export_safe', - message: - 'Schema default was omitted because it cannot be represented safely in exported JSON-compatible schema models.', - ), - ]); -} - -Object? _exportSafeDefaultOrNull(AckSchema schema, Object defaultValue) { - if (schema is TransformedSchema) { - return null; - } - - if (schema is EnumSchema && defaultValue is Enum) { - return defaultValue.name; + if (defaultValue is Enum) return defaultValue.name; + + // Try encoding through the inner schema (handles codec transformations). + final encoded = schema.inner.safeEncode(defaultValue); + if (encoded.isOk) { + final encodedValue = encoded.getOrNull(); + if (encodedValue != null) { + try { + return jsonDecode(jsonEncode(encodedValue)); + } catch (_) { + // fall through to runtime fallback + } + } } if (defaultValue is String || diff --git a/packages/ack/lib/src/schemas/codec_schema.dart b/packages/ack/lib/src/schemas/codec_schema.dart index 2a351ad3..cd47553c 100644 --- a/packages/ack/lib/src/schemas/codec_schema.dart +++ b/packages/ack/lib/src/schemas/codec_schema.dart @@ -212,6 +212,22 @@ final class CodecSchema ); } + @override + CodecSchema copyWithInner(AnyAckSchema newInner) { + return CodecSchema._( + inputSchema: newInner as AckSchema, + outputSchema: outputSchema, + decoder: _decoder, + encoder: _encoder, + decoderIdentity: _decoderIdentity, + isNullable: isNullable, + isOptional: isOptional, + description: description, + constraints: constraints, + refinements: refinements, + ); + } + @override @protected CodecSchema copyWithRuntimeConfig({ diff --git a/packages/ack/lib/src/schemas/default_schema.dart b/packages/ack/lib/src/schemas/default_schema.dart index d205aec0..91f67b3b 100644 --- a/packages/ack/lib/src/schemas/default_schema.dart +++ b/packages/ack/lib/src/schemas/default_schema.dart @@ -119,6 +119,17 @@ final class DefaultSchema ); } + @override + DefaultSchema copyWithInner(AnyAckSchema newInner) { + return DefaultSchema( + inner: newInner as AckSchema, + defaultValue: defaultValue, + isNullable: super.isNullable, + isOptional: super.isOptional, + description: description, + ); + } + @override @protected DefaultSchema copyWithRuntimeConfig({ diff --git a/packages/ack/lib/src/schemas/discriminated_object_schema.dart b/packages/ack/lib/src/schemas/discriminated_object_schema.dart index b7ef73d9..ee2130f1 100644 --- a/packages/ack/lib/src/schemas/discriminated_object_schema.dart +++ b/packages/ack/lib/src/schemas/discriminated_object_schema.dart @@ -48,26 +48,48 @@ final class DiscriminatedObjectSchema 'Discriminated branches must be object-backed schemas.', ); } + // Union-owned discriminator (PR #107): if a branch declares the + // discriminator property, it must accept the branch label. Otherwise + // the union synthesizes the literal automatically via [effectiveBranch]. final branchDiscriminator = base.properties[discriminatorKey]; - if (branchDiscriminator == null) { + if (branchDiscriminator != null && + !discriminatorPropertyAcceptsValue( + propertySchema: branchDiscriminator, + discriminatorValue: label, + )) { throw ArgumentError.value( entry.value, 'schemas["$label"]', - 'Discriminated branch "$label" must define discriminator key ' - '"$discriminatorKey" with Ack.literal("$label").', - ); - } - if (!hasMatchingDiscriminatorLiteral(branchDiscriminator, label)) { - throw ArgumentError.value( - entry.value, - 'schemas["$label"]', - 'Discriminator key "$discriminatorKey" conflicts with existing ' - 'property in branch "$label".', + 'Discriminator property "$discriminatorKey" in branch "$label" ' + 'must be Ack.literal("$label") or Ack.enumString containing ' + '"$label".', ); } } } + /// Returns the effective schema for [discriminatorValue]. + /// + /// The effective schema includes this union's discriminator property as an + /// exact branch literal, even when the authored branch omitted it. Wrappers + /// around the branch (codecs, defaults) are preserved. + AckSchema effectiveBranch(String discriminatorValue) { + final branchSchema = schemas[discriminatorValue]; + if (branchSchema == null) { + throw ArgumentError.value( + discriminatorValue, + 'discriminatorValue', + 'No discriminated branch is registered for this value.', + ); + } + return effectiveDiscriminatedBranch( + discriminatorKey: discriminatorKey, + discriminatorValue: discriminatorValue, + branchSchema: branchSchema, + ) + as AckSchema; + } + @override SchemaType get schemaType => SchemaType.discriminated; diff --git a/packages/ack/lib/src/schemas/wrapper_schema.dart b/packages/ack/lib/src/schemas/wrapper_schema.dart index 489b2107..4c508f10 100644 --- a/packages/ack/lib/src/schemas/wrapper_schema.dart +++ b/packages/ack/lib/src/schemas/wrapper_schema.dart @@ -16,6 +16,13 @@ mixin WrapperSchema< /// The wrapped schema used for boundary-shape traversal. AnyAckSchema get inner; + /// Returns a copy of this wrapper with [inner] swapped for [newInner]. + /// + /// Used by traversal utilities (e.g. discriminated-branch synthesis) that + /// need to rewrite the underlying boundary schema while preserving wrapper + /// configuration and behavior. + Schema copyWithInner(AnyAckSchema newInner); + /// Returns a copy with runtime-side configuration replaced. @protected Schema copyWithRuntimeConfig({ diff --git a/packages/ack/lib/src/utils/discriminated_branch_utils.dart b/packages/ack/lib/src/utils/discriminated_branch_utils.dart index 55dfe76b..fda93b2c 100644 --- a/packages/ack/lib/src/utils/discriminated_branch_utils.dart +++ b/packages/ack/lib/src/utils/discriminated_branch_utils.dart @@ -1,3 +1,4 @@ +import '../constraints/pattern_constraint.dart'; import '../constraints/string_literal_constraint.dart'; import '../schemas/schema.dart'; @@ -30,3 +31,101 @@ bool hasMatchingDiscriminatorLiteral(AnyAckSchema schema, String label) { return literals.isNotEmpty && literals.every((constraint) => constraint.expectedValue == label); } + +StringSchema _discriminatorLiteralSchema(String discriminatorValue) { + return StringSchema( + constraints: [StringLiteralConstraint(discriminatorValue)], + ); +} + +/// Returns whether [propertySchema] accepts [discriminatorValue] as a value of +/// the discriminator field. +/// +/// This compatibility check is structural and side-effect-free. It does not +/// parse the discriminator value because parsing can execute user +/// transforms/refinements during branch selection or schema export. +bool discriminatorPropertyAcceptsValue({ + required AnyAckSchema propertySchema, + required String discriminatorValue, +}) { + if (propertySchema is! StringSchema) return false; + if (propertySchema.refinements.isNotEmpty) return false; + if (propertySchema.constraints.length != 1) return false; + + final constraint = propertySchema.constraints.single; + if (constraint is StringLiteralConstraint) { + return constraint.expectedValue == discriminatorValue; + } + + if (constraint is PatternConstraint && + constraint.type == PatternType.enumString) { + return constraint.allowedValues?.contains(discriminatorValue) ?? false; + } + + return false; +} + +/// Builds the effective object branch for a discriminated-union value. +/// +/// The returned object schema always contains [discriminatorKey] first, as an +/// exact string literal matching [discriminatorValue]. The authored schema is +/// never mutated. +ObjectSchema effectiveDiscriminatedObjectBranch({ + required String discriminatorKey, + required String discriminatorValue, + required ObjectSchema objectSchema, +}) { + final existingDiscriminator = objectSchema.properties[discriminatorKey]; + if (existingDiscriminator != null && + !discriminatorPropertyAcceptsValue( + propertySchema: existingDiscriminator, + discriminatorValue: discriminatorValue, + )) { + throw ArgumentError( + 'Discriminator property "$discriminatorKey" does not accept ' + 'branch value "$discriminatorValue".', + ); + } + + final properties = { + discriminatorKey: _discriminatorLiteralSchema(discriminatorValue), + for (final entry in objectSchema.properties.entries) + if (entry.key != discriminatorKey) entry.key: entry.value, + }; + + return objectSchema.copyWith(properties: properties); +} + +/// Builds the effective schema for a discriminated-union branch. +/// +/// Supports plain object branches and wrapper-backed branches (codecs, +/// defaults). The effective schema validates/exports with a union-injected +/// literal discriminator while preserving the branch output type. +/// +/// Returns a type-erased [AnyAckSchema]; callers in a typed context (such as +/// [DiscriminatedObjectSchema.effectiveBranch]) should cast back to the +/// schema's specific `AckSchema` shape. +AnyAckSchema effectiveDiscriminatedBranch({ + required String discriminatorKey, + required String discriminatorValue, + required AnyAckSchema branchSchema, +}) { + if (branchSchema is ObjectSchema) { + return effectiveDiscriminatedObjectBranch( + discriminatorKey: discriminatorKey, + discriminatorValue: discriminatorValue, + objectSchema: branchSchema, + ); + } + + if (branchSchema is WrapperSchema) { + final effectiveInner = effectiveDiscriminatedBranch( + discriminatorKey: discriminatorKey, + discriminatorValue: discriminatorValue, + branchSchema: branchSchema.inner, + ); + return branchSchema.copyWithInner(effectiveInner); + } + + throw ArgumentError('Discriminated branches must be object-backed schemas'); +} From f13bd6621a2207802c51436ff5c877e4c6f30762 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 20 May 2026 17:33:59 -0400 Subject: [PATCH 03/53] test(ack): port typed-codecs test suite onto new main - Pull backup's versions of overlap test files (any_of_null_and_default, core_schema, comprehensive_json_schema, discriminated_object_schema, path_preservation, schema_equality, documentation/*, integration/discriminated_child_transform) - Add backup's new test files: consolidation_test, typed_codecs_characterization_test, polish_test - Delete obsolete tests backup removed: composite_default, default_mutation, transformed_schema_default - Add JsonMap to package:ack public API exports - Fix ack_schema_model_builder_test to use AnyAckSchema instead of AckSchema dart analyze passes cleanly. dart test: +838 passed / -27 failed (97% pass rate). Remaining failures are behavioral drift from PR #108's Draft-7 strictness (propertyOrdering, formatMinimum/Maximum, nested anyOf nullables); to be retargeted next. --- packages/ack/lib/ack.dart | 2 + packages/ack/test/consolidation_test.dart | 388 ++++++++++++ ...epts_json_serialization_examples_test.dart | 2 +- .../core_concepts_schemas_examples_test.dart | 5 +- ...ted_quickstart_tutorial_examples_test.dart | 2 +- ...flutter_form_validation_examples_test.dart | 2 +- ...json_schema_integration_examples_test.dart | 68 +- .../overview_doc_examples_test.dart | 5 +- .../discriminated_child_transform_test.dart | 43 -- packages/ack/test/polish_test.dart | 277 +++++++++ .../ack_schema_model_builder_test.dart | 2 +- .../schemas/any_of_null_and_default_test.dart | 18 +- .../test/schemas/composite_default_test.dart | 423 ------------- .../comprehensive_json_schema_test.dart | 213 +------ .../ack/test/schemas/core_schema_test.dart | 78 +-- .../test/schemas/default_mutation_test.dart | 280 --------- .../discriminated_object_schema_test.dart | 373 +++-------- .../test/schemas/path_preservation_test.dart | 68 +- .../test/schemas/schema_equality_test.dart | 103 +--- .../transformed_schema_default_test.dart | 69 --- .../typed_codecs_characterization_test.dart | 583 ++++++++++++++++++ 21 files changed, 1430 insertions(+), 1574 deletions(-) create mode 100644 packages/ack/test/consolidation_test.dart create mode 100644 packages/ack/test/polish_test.dart delete mode 100644 packages/ack/test/schemas/composite_default_test.dart delete mode 100644 packages/ack/test/schemas/default_mutation_test.dart delete mode 100644 packages/ack/test/schemas/transformed_schema_default_test.dart create mode 100644 packages/ack/test/typed_codecs_characterization_test.dart diff --git a/packages/ack/lib/ack.dart b/packages/ack/lib/ack.dart index 66d3deaf..4b9a058b 100644 --- a/packages/ack/lib/ack.dart +++ b/packages/ack/lib/ack.dart @@ -6,6 +6,8 @@ library; // Main API export 'src/ack.dart'; +// Common types +export 'src/common_types.dart' show JsonMap; // Constraints export 'src/constraints/constraint.dart'; export 'src/constraints/datetime_constraint.dart'; diff --git a/packages/ack/test/consolidation_test.dart b/packages/ack/test/consolidation_test.dart new file mode 100644 index 00000000..8b45e992 --- /dev/null +++ b/packages/ack/test/consolidation_test.dart @@ -0,0 +1,388 @@ +import 'package:ack/ack.dart'; +import 'package:test/test.dart'; + +final class _Foo { + _Foo(this.created); + final DateTime created; +} + +void main() { + group('encode error path preservation', () { + test('list item encode failure carries item path', () { + final schema = Ack.list(Ack.datetime()); + // Second element is local-time DateTime, fails UTC invariant. + final result = schema.safeEncode([ + DateTime.utc(2026, 1, 1), + DateTime(2026, 1, 2), + ]); + expect(result.isFail, true); + final err = result.getError(); + final flattened = _flatten(err); + expect( + flattened.any((e) => e.path == '#/1'), + true, + reason: + 'Expected an error at path #/1, got: ' + '${flattened.map((e) => '${e.path} ${e.runtimeType}').join(', ')}', + ); + }); + + test('object property encode failure carries property path', () { + final schema = Ack.object({'when': Ack.datetime()}); + final result = schema.safeEncode({'when': DateTime(2026, 1, 1)}); + expect(result.isFail, true); + final flattened = _flatten(result.getError()); + expect( + flattened.any((e) => e.path == '#/when'), + true, + reason: + 'Expected error at #/when, got: ' + '${flattened.map((e) => e.path).join(', ')}', + ); + }); + + test('nested object encode failure carries deep path', () { + final schema = Ack.object({ + 'event': Ack.object({'at': Ack.datetime()}), + }); + final result = schema.safeEncode({ + 'event': {'at': DateTime(2026, 5, 10)}, + }); + expect(result.isFail, true); + final flattened = _flatten(result.getError()); + expect( + flattened.any((e) => e.path == '#/event/at'), + true, + reason: + 'Expected #/event/at, got: ' + '${flattened.map((e) => e.path).join(', ')}', + ); + }); + + test('list of objects encode failure carries deep indexed path', () { + final schema = Ack.list(Ack.object({'at': Ack.datetime()})); + final result = schema.safeEncode([ + {'at': DateTime.utc(2026, 1, 1)}, + {'at': DateTime(2026, 1, 2)}, + ]); + expect(result.isFail, true); + final flattened = _flatten(result.getError()); + expect( + flattened.any((e) => e.path == '#/1/at'), + true, + reason: + 'Expected #/1/at, got: ' + '${flattened.map((e) => e.path).join(', ')}', + ); + }); + }); + + group('runtime defaults on codecs', () { + test('codec.withDefault returns runtime default on parse(null)', () { + final schema = Ack.date().withDefault(DateTime(2026, 1, 1)); + final parsed = schema.parse(null); + expect(parsed, DateTime(2026, 1, 1)); + }); + + test('codec.withDefault default is validated through runtime path', () { + // A non-midnight default would violate the date invariant. The + // DefaultSchema runs it through inner.validateRuntimeWithContext on + // parse(null) and should fail. + final schema = Ack.date().withDefault(DateTime(2026, 1, 1, 12)); + final result = schema.safeParse(null); + expect(result.isFail, true); + }); + + test('codec.withDefault encode does not inject default', () { + final schema = Ack.date().nullable().withDefault(DateTime(2026, 1, 1)); + final encoded = schema.encode(null); + expect(encoded, isNull); + }); + + test('codec.withDefault default is omitted from JSON Schema when ' + 'it fails encoding', () { + // Non-midnight runtime value fails the date codec's invariant; the + // schema should omit the default rather than leak a runtime DateTime. + final schema = Ack.date().withDefault(DateTime(2026, 1, 1, 12)); + final json = schema.toJsonSchema(); + expect(json.containsKey('default'), false); + }); + + test('codec.withDefault default IS emitted when it encodes cleanly', () { + final schema = Ack.date().withDefault(DateTime(2026, 1, 1)); + final json = schema.toJsonSchema(); + expect(json['default'], '2026-01-01'); + }); + }); + + group('non-string map keys', () { + test('ObjectSchema rejects maps with non-string keys cleanly', () { + final schema = Ack.object({'name': Ack.string()}); + final result = schema.safeParse({1: 'oops'}); + expect(result.isFail, true); + expect(result.getError(), isA()); + }); + + test( + 'Encoding a map containing nested non-string-keyed map fails cleanly', + () { + final schema = Ack.object({ + 'meta': Ack.any(), + }, additionalProperties: false); + final inner = {1: 'oops'}; + final result = schema.safeEncode({'meta': inner}); + expect(result.isFail, true); + expect(result.getError(), isA()); + }, + ); + + test('DiscriminatedObjectSchema rejects non-string-keyed maps', () { + final schema = Ack.discriminated<_Foo>( + discriminatorKey: 'kind', + schemas: { + 'foo': + Ack.object({ + 'kind': Ack.literal('foo'), + 'created': Ack.datetime(), + }).model<_Foo>( + decode: (data) => _Foo(data['created'] as DateTime), + encode: (foo) => {'kind': 'foo', 'created': foo.created}, + ), + }, + ); + final result = schema.safeParse({1: 'oops'}); + expect(result.isFail, true); + expect(result.getError(), isA()); + }); + }); + + group('built-in encode invariants', () { + test('Ack.date rejects non-midnight encode', () { + final result = Ack.date().safeEncode(DateTime(2026, 1, 1, 12)); + expect(result.isFail, true); + }); + + test('Ack.date rejects UTC encode (must be local midnight)', () { + final result = Ack.date().safeEncode(DateTime.utc(2026, 1, 1)); + expect(result.isFail, true); + }); + + test('Ack.date accepts local midnight encode', () { + final result = Ack.date().safeEncode(DateTime(2026, 1, 1)); + expect(result.isOk, true); + expect(result.getOrNull(), '2026-01-01'); + }); + + test('Ack.datetime rejects non-UTC encode', () { + final result = Ack.datetime().safeEncode(DateTime(2026, 1, 1, 12)); + expect(result.isFail, true); + }); + + test('Ack.datetime accepts UTC encode', () { + final result = Ack.datetime().safeEncode(DateTime.utc(2026, 1, 1, 12)); + expect(result.isOk, true); + }); + + test('Ack.duration rejects sub-millisecond precision encode', () { + final result = Ack.duration().safeEncode( + const Duration(microseconds: 1500), + ); + expect(result.isFail, true); + }); + + test('Ack.duration accepts whole-millisecond encode', () { + final result = Ack.duration().safeEncode( + const Duration(milliseconds: 500), + ); + expect(result.isOk, true); + expect(result.getOrNull(), 500); + }); + + test('Ack.uri rejects relative URI encode', () { + final result = Ack.uri().safeEncode(Uri.parse('relative/path')); + expect(result.isFail, true); + }); + + test('Ack.uri accepts absolute URI encode', () { + final result = Ack.uri().safeEncode(Uri.parse('https://example.com/x')); + expect(result.isOk, true); + expect(result.getOrNull(), 'https://example.com/x'); + }); + }); + + group('nullable AnyOf encode symmetry', () { + test('anyOf with a nullable branch parses null', () { + final schema = Ack.anyOf([Ack.string().nullable(), Ack.integer()]); + final result = schema.safeParse(null); + expect(result.isOk, true); + expect(result.getOrNull(), isNull); + }); + + test('anyOf with a nullable branch encodes null', () { + final schema = Ack.anyOf([Ack.string().nullable(), Ack.integer()]); + final result = schema.safeEncode(null); + expect(result.isOk, true); + expect(result.getOrNull(), isNull); + }); + + test('anyOf with no nullable branches rejects null on encode', () { + final schema = Ack.anyOf([Ack.string(), Ack.integer()]); + final result = schema.safeEncode(null); + expect(result.isFail, true); + }); + }); + + group('Runtime configuration surface', () { + test('CodecSchema can be refined without dynamic casts', () { + final schema = Ack.string().codec( + decode: int.parse, + encode: (i) => i.toString(), + ); + final refined = schema.refine((v) => v > 0, message: 'must be positive'); + final ok = refined.safeParse('5'); + final fail = refined.safeParse('-1'); + expect(ok.isOk, true); + expect(fail.isFail, true); + }); + + test('CodecSchema can be made nullable through extension', () { + final schema = Ack.date(); + final nullable = schema.nullable(); + expect(nullable.parse(null), isNull); + }); + + test('bidirectional codec preserves nullable input policy', () { + final schema = Ack.string().nullable().codec( + decode: int.parse, + encode: (i) => i.toString(), + ); + + expect(schema.safeParse(null).isOk, true); + expect(schema.safeEncode(null).isOk, true); + }); + + test('static codec preserves nullable input policy', () { + final schema = Ack.codec( + input: Ack.string().nullable(), + decode: int.parse, + encode: (i) => i.toString(), + ); + + expect(schema.safeParse(null).isOk, true); + expect(schema.safeEncode(null).isOk, true); + }); + + test('bidirectional codec preserves optional input policy in objects', () { + final schema = Ack.object({ + 'count': Ack.string().optional().codec( + decode: int.parse, + encode: (i) => i.toString(), + ), + }); + + expect(schema.safeParse({}).isOk, true); + expect(schema.safeEncode({}).isOk, true); + }); + + test('one-way CodecSchema can be refined without dynamic casts', () { + final schema = Ack.string().transform(int.parse); + final refined = schema.refine((v) => v > 0, message: 'must be positive'); + expect(refined.parse('5'), 5); + expect(refined.safeParse('-1').isFail, true); + }); + + test('DefaultSchema can be made nullable through extension', () { + final schema = Ack.string().withDefault('x'); + final nullable = schema.nullable(); + expect(nullable.isNullable, true); + }); + }); + + group('single-lifecycle invariants', () { + test('parse and runtime validation agree on primitive types', () { + final schema = Ack.integer(); + expect(schema.safeParse(42).isOk, true); + expect(schema.safeParse('42').isFail, true); + }); + + test('codec parse runs output runtime invariants', () { + // Build a codec whose decode produces a value that fails the output + // schema's refinement. The decode succeeds, but runtime validation fails. + final schema = Ack.string().codec( + output: Ack.instance().refine((v) => v.isEven, message: 'even'), + decode: int.parse, + encode: (i) => i.toString(), + ); + expect(schema.safeParse('4').isOk, true); + expect(schema.safeParse('5').isFail, true); + }); + + test('codec encode runs output runtime invariants before encoding', () { + final schema = Ack.string().codec( + output: Ack.instance().refine((v) => v.isEven, message: 'even'), + decode: int.parse, + encode: (i) => i.toString(), + ); + expect(schema.safeEncode(4).isOk, true); + expect(schema.safeEncode(5).isFail, true); + }); + + test('codec parse rejects present-null optional object fields', () { + final schema = Ack.string().codec( + output: Ack.object({'name': Ack.string().optional()}), + decode: (_) => {'name': null}, + encode: (_) => 'ignored', + ); + + expect(schema.safeParse('ignored').isFail, true); + }); + + test('AnyOf encode runs root runtime refinements', () { + final schema = Ack.anyOf([ + Ack.string(), + Ack.integer(), + ]).refine((value) => value != 'blocked', message: 'blocked'); + + expect(schema.safeParse('blocked').isFail, true); + expect(schema.safeEncode('blocked').isFail, true); + }); + + test('Discriminated encode runs root runtime refinements', () { + final schema = + Ack.discriminated<_Foo>( + discriminatorKey: 'type', + schemas: { + 'foo': + Ack.object({ + 'type': Ack.literal('foo'), + 'created': Ack.datetime(), + }).model<_Foo>( + decode: (data) => _Foo(data['created'] as DateTime), + encode: (foo) => {'type': 'foo', 'created': foo.created}, + ), + }, + ).refine( + (value) => value.created.year >= 2020, + message: 'too old', + ); + + expect( + schema.safeParse({ + 'type': 'foo', + 'created': '2019-01-01T00:00:00.000Z', + }).isFail, + true, + ); + expect(schema.safeEncode(_Foo(DateTime.utc(2019))).isFail, true); + }); + }); +} + +Iterable _flatten(SchemaError err) sync* { + yield err; + if (err is SchemaNestedError) { + for (final child in err.errors) { + yield* _flatten(child); + } + } +} diff --git a/packages/ack/test/documentation/core_concepts_json_serialization_examples_test.dart b/packages/ack/test/documentation/core_concepts_json_serialization_examples_test.dart index 1e12c873..57f75fb0 100644 --- a/packages/ack/test/documentation/core_concepts_json_serialization_examples_test.dart +++ b/packages/ack/test/documentation/core_concepts_json_serialization_examples_test.dart @@ -7,7 +7,7 @@ import 'package:test/test.dart'; /// Tests for code snippets in docs/core-concepts/json-serialization.mdx. void main() { group('Docs /core-concepts/json-serialization.mdx', () { - AckSchema> buildUserSchema() { + AckSchema, Map> buildUserSchema() { return Ack.object({ 'name': Ack.string(), 'age': Ack.integer().min(0), diff --git a/packages/ack/test/documentation/core_concepts_schemas_examples_test.dart b/packages/ack/test/documentation/core_concepts_schemas_examples_test.dart index 99d7eb89..eb66ea8d 100644 --- a/packages/ack/test/documentation/core_concepts_schemas_examples_test.dart +++ b/packages/ack/test/documentation/core_concepts_schemas_examples_test.dart @@ -130,10 +130,7 @@ void main() { group('Union type examples', () { test('anyOf accepts strings or integers', () { - final idSchema = Ack.anyOf([ - Ack.string().strictParsing(), - Ack.integer(), - ]); + final idSchema = Ack.anyOf([Ack.string(), Ack.integer()]); expect(idSchema.safeParse('A123').isOk, isTrue); expect(idSchema.safeParse(99).isOk, isTrue); expect(idSchema.safeParse(true).isFail, isTrue); diff --git a/packages/ack/test/documentation/getting_started_quickstart_tutorial_examples_test.dart b/packages/ack/test/documentation/getting_started_quickstart_tutorial_examples_test.dart index 1ee166f8..018af9f8 100644 --- a/packages/ack/test/documentation/getting_started_quickstart_tutorial_examples_test.dart +++ b/packages/ack/test/documentation/getting_started_quickstart_tutorial_examples_test.dart @@ -4,7 +4,7 @@ import 'package:test/test.dart'; /// Tests for code snippets in docs/getting-started/quickstart-tutorial.mdx. void main() { group('Docs /getting-started/quickstart-tutorial.mdx', () { - AckSchema> buildUserSchema() { + AckSchema, Map> buildUserSchema() { return Ack.object({ 'name': Ack.string().minLength(2), 'age': Ack.integer().min(0).optional(), diff --git a/packages/ack/test/documentation/guides_flutter_form_validation_examples_test.dart b/packages/ack/test/documentation/guides_flutter_form_validation_examples_test.dart index 1c504e55..99615c9c 100644 --- a/packages/ack/test/documentation/guides_flutter_form_validation_examples_test.dart +++ b/packages/ack/test/documentation/guides_flutter_form_validation_examples_test.dart @@ -19,7 +19,7 @@ void main() { .matches(r'.*[0-9].*') .notEmpty(); - String? runValidator(AckSchema schema, String? value) { + String? runValidator(AckSchema schema, String? value) { final result = schema.safeParse(value); return result.isFail ? result.getError().toString() : null; } diff --git a/packages/ack/test/documentation/guides_json_schema_integration_examples_test.dart b/packages/ack/test/documentation/guides_json_schema_integration_examples_test.dart index 39b97606..e3faaa95 100644 --- a/packages/ack/test/documentation/guides_json_schema_integration_examples_test.dart +++ b/packages/ack/test/documentation/guides_json_schema_integration_examples_test.dart @@ -8,7 +8,7 @@ enum UserRole { admin, user, guest } /// Tests for code snippets in docs/guides/json-schema-integration.mdx. void main() { group('Docs /guides/json-schema-integration.mdx', () { - AckSchema> buildUserSchema() { + AckSchema, Map> buildUserSchema() { return Ack.object({ 'id': Ack.integer().positive().describe('Unique user identifier'), 'name': Ack.string() @@ -59,45 +59,37 @@ void main() { expect(enumBranch['enum'], equals(['admin', 'user', 'guest'])); }); - test( - 'nullable discriminated schema is emitted as generic anyOf with null', - () { - final schema = Ack.discriminated( - discriminatorKey: 'kind', - schemas: { - 'circle': Ack.object({ - 'kind': Ack.literal('circle'), - 'radius': Ack.double().positive(), - }), - 'square': Ack.object({ - 'kind': Ack.literal('square'), - 'size': Ack.double().positive(), - }), - }, - ).nullable(); - - final jsonSchema = schema.toJsonSchema(); - expect(jsonSchema, isNot(contains('discriminator'))); - expect(jsonSchema, isNot(contains('oneOf'))); + test('nullable discriminated schema is emitted as nested anyOf', () { + final schema = Ack.discriminated( + discriminatorKey: 'kind', + schemas: { + 'circle': Ack.object({ + 'kind': Ack.literal('circle'), + 'radius': Ack.double().positive(), + }), + 'square': Ack.object({ + 'kind': Ack.literal('square'), + 'size': Ack.double().positive(), + }), + }, + ).nullable(); - final anyOf = jsonSchema['anyOf'] as List; - expect(anyOf, hasLength(2)); - expect( - anyOf.any((e) => e is Map && e['type'] == 'null'), - isTrue, - ); + final jsonSchema = schema.toJsonSchema(); + final outerAnyOf = jsonSchema['anyOf'] as List; + expect(outerAnyOf, hasLength(2)); + expect( + outerAnyOf.any((e) => e is Map && e['type'] == 'null'), + isTrue, + ); - final unionBranch = - anyOf.firstWhere( - (e) => e is Map && e.containsKey('anyOf'), - ) - as Map; - final objectBranches = (unionBranch['anyOf'] as List) - .where((e) => e is Map && e['type'] == 'object') - .toList(); - expect(objectBranches, hasLength(2)); - }, - ); + final unionBranch = + outerAnyOf.firstWhere( + (e) => e is Map && e['anyOf'] is List, + ) + as Map; + final innerAnyOf = unionBranch['anyOf'] as List; + expect(innerAnyOf, hasLength(2)); + }); test('API specification example includes referenced schema', () { Map buildApiSpecification() { diff --git a/packages/ack/test/documentation/overview_doc_examples_test.dart b/packages/ack/test/documentation/overview_doc_examples_test.dart index a9681a7a..74d2158d 100644 --- a/packages/ack/test/documentation/overview_doc_examples_test.dart +++ b/packages/ack/test/documentation/overview_doc_examples_test.dart @@ -131,10 +131,7 @@ void main() { }); test('union examples accept multiple data shapes', () { - final stringOrNumber = Ack.anyOf([ - Ack.string().strictParsing(), - Ack.integer(), - ]); + final stringOrNumber = Ack.anyOf([Ack.string(), Ack.integer()]); expect(stringOrNumber.safeParse('hello').isOk, isTrue); expect(stringOrNumber.safeParse(42).isOk, isTrue); diff --git a/packages/ack/test/integration/discriminated_child_transform_test.dart b/packages/ack/test/integration/discriminated_child_transform_test.dart index 87219882..03996a17 100644 --- a/packages/ack/test/integration/discriminated_child_transform_test.dart +++ b/packages/ack/test/integration/discriminated_child_transform_test.dart @@ -84,49 +84,6 @@ void main() { expect((result.getOrNull() as Cat).name, equals('Mittens')); }); - test('applies transformed defaults without re-parsing', () { - final catSchema = Ack.object({ - 'type': Ack.literal('cat'), - 'name': Ack.string(), - }).transform((map) => Cat(map['name'] as String)); - - final animalSchema = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': catSchema}, - ).copyWith(defaultValue: Cat('Default Cat')); - - final result = animalSchema.safeParse(null); - - expect(result.isOk, isTrue); - expect(result.getOrNull(), isA()); - expect(result.getOrThrow()!.name, equals('Default Cat')); - }); - - test('parse rejects non-object-backed branches via effectiveBranch', () { - final animalSchema = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': Ack.string()}, - ); - - final result = animalSchema.safeParse({'type': 'cat'}); - - expect(result.isOk, isFalse); - expect( - result.getError().message, - equals('Discriminated branches must be object-backed schemas'), - ); - expect( - animalSchema.toSchemaModel, - throwsA( - isA().having( - (e) => e.message, - 'message', - contains('Discriminated branches must be object-backed schemas'), - ), - ), - ); - }); - test('transform on discriminated union itself still works', () { final catSchema = Ack.object({ 'type': Ack.literal('cat'), diff --git a/packages/ack/test/polish_test.dart b/packages/ack/test/polish_test.dart new file mode 100644 index 00000000..bc1b8a30 --- /dev/null +++ b/packages/ack/test/polish_test.dart @@ -0,0 +1,277 @@ +import 'dart:convert'; + +import 'package:ack/ack.dart'; +import 'package:test/test.dart'; + +final class _Cat { + _Cat(this.name); + final String name; +} + +void main() { + group('0. Safe API unsupported runtime objects', () { + test( + 'safeParse returns Fail instead of throwing for unsupported values', + () { + expect( + () => Ack.string().safeParse(DateTime(2026, 1, 1)), + returnsNormally, + ); + + final result = Ack.string().safeParse(DateTime(2026, 1, 1)); + expect(result.isFail, true); + expect(result.getError(), isA()); + expect(result.getError().message, contains('Expected string')); + expect(result.getError().message, contains('DateTime')); + }, + ); + + test('nested runtime validation returns Fail for unsupported values', () { + final schema = Ack.object({'name': Ack.string()}); + + expect( + () => schema.safeEncode({'name': DateTime(2026, 1, 1)}), + returnsNormally, + ); + + final result = schema.safeEncode({'name': DateTime(2026, 1, 1)}); + expect(result.isFail, true); + expect(result.getError(), isA()); + final nested = result.getError() as SchemaNestedError; + expect(nested.errors.single, isA()); + expect(nested.errors.single.message, contains('Expected string')); + expect(nested.errors.single.message, contains('DateTime')); + }); + }); + + group('1. Null-policy hooks (no public safeEncode override needed)', () { + test( + 'AnyOf with nullable branch accepts null on encode via base wrapper', + () { + final schema = Ack.anyOf([Ack.string().nullable(), Ack.integer()]); + final result = schema.safeEncode(null); + expect(result.isOk, true); + expect(result.getOrNull(), isNull); + }, + ); + + test('AnyOf without nullable branch rejects null on encode', () { + final schema = Ack.anyOf([Ack.string(), Ack.integer()]); + final result = schema.safeEncode(null); + expect(result.isFail, true); + }); + + test('Primitive schemas inherit isNullable-based encode null policy', () { + final nullable = Ack.string().nullable(); + final nonNullable = Ack.string(); + expect(nullable.safeEncode(null).isOk, true); + expect(nonNullable.safeEncode(null).isFail, true); + }); + }); + + group('2. JSON-safe default filtering', () { + test('DefaultSchema omits non-JSON-safe defaults', () { + // InstanceSchema identity-encodes a DateTime as itself, + // which is NOT JSON-safe. The default must NOT be emitted. + final schema = Ack.instance().withDefault(DateTime(2026, 1)); + final json = schema.toJsonSchema(); + expect(json.containsKey('default'), false); + }); + + test('DefaultSchema emits JSON-safe primitive defaults', () { + final schema = Ack.string().withDefault('x'); + final json = schema.toJsonSchema(); + expect(json['default'], 'x'); + }); + + test('DefaultSchema emits JSON-safe nested map default', () { + final schema = Ack.object({ + 'name': Ack.string(), + }).withDefault({'name': 'guest'}); + final json = schema.toJsonSchema(); + expect(json['default'], {'name': 'guest'}); + }); + + test('ObjectSchema does not require fields with parse defaults', () { + final schema = Ack.object({'name': Ack.string().withDefault('guest')}); + final json = schema.toJsonSchema(); + + expect(schema.safeParse({}).isOk, true); + expect(json.containsKey('required'), false); + }); + + test('ObjectSchema injects encoded defaults for missing encode fields', () { + final schema = Ack.object({ + 'name': Ack.string().withDefault('guest'), + 'birthday': Ack.date().withDefault(DateTime(2026, 1, 1)), + }); + + expect(schema.safeParse({}).getOrThrow(), { + 'name': 'guest', + 'birthday': DateTime(2026, 1, 1), + }); + expect(schema.safeEncode({}).getOrThrow(), { + 'name': 'guest', + 'birthday': '2026-01-01', + }); + }); + + test( + 'DefaultSchema rejects mutable collection defaults it cannot clone', + () { + final defaultTags = ['guest']; + final schema = Ack.instance>().withDefault(defaultTags); + + expect(schema.safeParse(null).isFail, true); + expect(schema.toJsonSchema().containsKey('default'), false); + }, + ); + + test('DefaultSchema emits codec-encoded default (date) cleanly', () { + final schema = Ack.date().withDefault(DateTime(2026, 1, 1)); + final json = schema.toJsonSchema(); + // The codec encodes DateTime → 'YYYY-MM-DD', which is JSON-safe. + expect(json['default'], '2026-01-01'); + }); + + test('DefaultSchema omits non-finite numeric defaults', () { + final nanJson = Ack.double().withDefault(double.nan).toJsonSchema(); + final infinityJson = Ack.double() + .withDefault(double.infinity) + .toJsonSchema(); + + expect(nanJson.containsKey('default'), false); + expect(infinityJson.containsKey('default'), false); + }); + + test('DefaultSchema default survives a jsonEncode round-trip', () { + final schema = Ack.object({ + 'name': Ack.string(), + }).withDefault({'name': 'guest'}); + final json = schema.toJsonSchema(); + // Should not throw. + final encoded = jsonEncode(json); + expect(encoded.contains('"default":{"name":"guest"}'), true); + }); + }); + + group('3. Ack.any() JSON Schema does not accept null', () { + test('non-nullable Ack.any() emits explicit non-null branches', () { + final json = Ack.any().toJsonSchema(); + expect(json['anyOf'], isA()); + final branches = (json['anyOf'] as List).cast(); + final types = branches + .where((b) => b['type'] != null) + .map((b) => b['type']) + .toList(); + expect( + types, + containsAll([ + 'string', + 'number', + 'integer', + 'boolean', + 'object', + 'array', + ]), + ); + // No null branch. + expect(types.contains('null'), false); + }); + + test('nullable Ack.any() adds null branch', () { + final json = Ack.any().nullable().toJsonSchema(); + expect(json['anyOf'], isA()); + final branches = (json['anyOf'] as List).cast(); + final types = branches.map((b) => b['type']).toList(); + expect(types.contains('null'), true); + }); + + test('Ack.any() rejects non-JSON-safe Dart runtime values', () { + final result = Ack.any().safeParse(DateTime(2026, 1, 1)); + expect(result.isFail, true); + expect(result.getError().message, contains('JSON-safe')); + }); + }); + + group('4. Discriminated branch reject conflicting discriminator', () { + test('encode fails when a branch encoder emits a conflicting ' + 'discriminator', () { + final schema = Ack.discriminated<_Cat>( + discriminatorKey: 'kind', + schemas: { + 'cat': + Ack.object({ + 'kind': Ack.literal('cat'), + 'name': Ack.string(), + }).model<_Cat>( + decode: (data) => _Cat(data['name'] as String), + // Branch encoder lies about its kind. + encode: (cat) => {'kind': 'wrong-kind', 'name': cat.name}, + ), + }, + ); + final result = schema.safeEncode(_Cat('Mittens')); + expect(result.isFail, true); + }); + + test('constructor rejects a branch missing the discriminator literal', () { + expect( + () => Ack.discriminated<_Cat>( + discriminatorKey: 'kind', + schemas: { + 'cat': Ack.object({'name': Ack.string()}).model<_Cat>( + decode: (data) => _Cat(data['name'] as String), + encode: (cat) => {'name': cat.name}, + ), + }, + ), + throwsArgumentError, + ); + }); + + test('encode succeeds when branch emits a matching discriminator', () { + final schema = Ack.discriminated<_Cat>( + discriminatorKey: 'kind', + schemas: { + 'cat': Ack.object({'kind': Ack.literal('cat'), 'name': Ack.string()}) + .model<_Cat>( + decode: (data) => _Cat(data['name'] as String), + encode: (cat) => {'kind': 'cat', 'name': cat.name}, + ), + }, + ); + final encoded = schema.encode(_Cat('Mittens')); + expect(encoded, {'kind': 'cat', 'name': 'Mittens'}); + }); + }); + + group('5. Optional-null encode omission (parse/encode asymmetry)', () { + test('encode omits optional + non-nullable null property', () { + final schema = Ack.object({ + 'name': Ack.string(), + 'nickname': Ack.string().optional(), + }); + final encoded = schema.encode({'name': 'Cat', 'nickname': null}); + expect(encoded, {'name': 'Cat'}); + }); + + test('encode keeps optional + nullable explicit null property', () { + final schema = Ack.object({ + 'name': Ack.string(), + 'nickname': Ack.string().optional().nullable(), + }); + final encoded = schema.encode({'name': 'Cat', 'nickname': null}); + expect(encoded, {'name': 'Cat', 'nickname': null}); + }); + + test('parse still rejects optional + non-nullable explicit null', () { + final schema = Ack.object({ + 'name': Ack.string(), + 'nickname': Ack.string().optional(), + }); + final result = schema.safeParse({'name': 'Cat', 'nickname': null}); + expect(result.isFail, true); + }); + }); +} diff --git a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart index a54f48d8..e4476a72 100644 --- a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart +++ b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart @@ -38,7 +38,7 @@ void main() { }); test('renders direct JSON Schema through the schema model', () { - void expectDirectMatchesModel(AckSchema schema) { + void expectDirectMatchesModel(AnyAckSchema schema) { expect( schema.toJsonSchema(), equals(schema.toSchemaModel().toJsonSchema()), diff --git a/packages/ack/test/schemas/any_of_null_and_default_test.dart b/packages/ack/test/schemas/any_of_null_and_default_test.dart index 0fbd57fa..8726b33b 100644 --- a/packages/ack/test/schemas/any_of_null_and_default_test.dart +++ b/packages/ack/test/schemas/any_of_null_and_default_test.dart @@ -120,7 +120,7 @@ void main() { final schema = Ack.anyOf([ Ack.string(), Ack.integer(), - ]).copyWith(defaultValue: defaultValue); + ]).withDefault(defaultValue); final result = schema.safeParse(null); expect(result.isOk, isTrue); @@ -132,7 +132,7 @@ void main() { final schema = Ack.anyOf([ Ack.string().nullable(), Ack.integer(), - ]).copyWith(defaultValue: defaultValue); + ]).withDefault(defaultValue); final result = schema.safeParse(null); expect(result.isOk, isTrue); @@ -145,7 +145,7 @@ void main() { final schema = Ack.anyOf([ Ack.integer(), Ack.double(), - ]).copyWith(defaultValue: defaultValue); + ]).withDefault(defaultValue); final result = schema.safeParse(null); expect(result.isFail, isTrue); @@ -199,16 +199,16 @@ void main() { expect(jsonSchema['anyOf'], isA()); final anyOfList = jsonSchema['anyOf'] as List; - expect(anyOfList.length, equals(2)); // union + null + // Nullable anyOf wraps the base anyOf in another anyOf with null + // Structure: anyOf: [ { anyOf: [string, integer] }, { type: 'null' } ] + expect(anyOfList.length, equals(2)); // base anyOf + null expect( - anyOfList.last, + anyOfList[1], equals({'type': 'null'}), reason: 'Last element should be null type', ); - final union = anyOfList.first as Map; - final branches = union['anyOf'] as List; - expect((branches[0] as Map)['type'], equals('string')); - expect((branches[1] as Map)['type'], equals('integer')); + expect(anyOfList[0], isA()); + expect((anyOfList[0] as Map).containsKey('anyOf'), isTrue); }); test('should not include null type when AnyOfSchema is not nullable', () { diff --git a/packages/ack/test/schemas/composite_default_test.dart b/packages/ack/test/schemas/composite_default_test.dart deleted file mode 100644 index cea5f557..00000000 --- a/packages/ack/test/schemas/composite_default_test.dart +++ /dev/null @@ -1,423 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:test/test.dart'; - -void main() { - group('Composite Schema Defaults', () { - group('ObjectSchema defaults', () { - test('should apply object default when input is null', () { - final defaultObj = {'name': 'Guest', 'age': 0}; - final schema = Ack.object({ - 'name': Ack.string(), - 'age': Ack.integer(), - }).copyWith(defaultValue: defaultObj); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow(); - expect(value, equals(defaultObj)); - }); - - test('should clone object defaults to prevent mutation', () { - final defaultObj = {'name': 'Guest', 'age': 0}; - final schema = Ack.object({ - 'name': Ack.string(), - 'age': Ack.integer(), - }).copyWith(defaultValue: defaultObj); - - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.isOk, isTrue); - expect(result2.isOk, isTrue); - - final value1 = result1.getOrThrow(); - final value2 = result2.getOrThrow(); - - // Values should be equal but not identical - expect(value1, equals(value2)); - expect(identical(value1, value2), isFalse); - }); - - test('should validate object default against schema', () { - final defaultObj = {'name': 'Guest', 'age': 0}; - final schema = Ack.object({ - 'name': Ack.string(), - 'age': Ack.integer(), - }).copyWith(defaultValue: defaultObj); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow()!; - expect(value['name'], equals('Guest')); - expect(value['age'], equals(0)); - }); - - test('should not apply default when input is provided', () { - final defaultObj = {'name': 'Guest', 'age': 0}; - final schema = Ack.object({ - 'name': Ack.string(), - 'age': Ack.integer(), - }).copyWith(defaultValue: defaultObj); - - final result = schema.safeParse({'name': 'Alice', 'age': 30}); - - expect(result.isOk, isTrue); - final value = result.getOrThrow()!; - expect(value['name'], equals('Alice')); - expect(value['age'], equals(30)); - }); - - test('should emit default in toJsonSchema', () { - final defaultObj = {'name': 'Guest', 'age': 0}; - final schema = Ack.object({ - 'name': Ack.string(), - 'age': Ack.integer(), - }).copyWith(defaultValue: defaultObj); - - final jsonSchema = schema.toJsonSchema(); - - expect(jsonSchema['default'], equals(defaultObj)); - }); - - test('should handle nested object defaults', () { - final defaultObj = { - 'user': { - 'name': 'Guest', - 'settings': {'theme': 'dark'}, - }, - }; - final schema = Ack.object({ - 'user': Ack.object({ - 'name': Ack.string(), - 'settings': Ack.object({'theme': Ack.string()}), - }), - }).copyWith(defaultValue: defaultObj); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow(); - expect(value, equals(defaultObj)); - }); - }); - - group('ListSchema defaults', () { - test('should apply list default when input is null', () { - final defaultList = ['a', 'b', 'c']; - final schema = Ack.list( - Ack.string(), - ).copyWith(defaultValue: defaultList); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow(); - expect(value, equals(defaultList)); - }); - - test('should clone list defaults to prevent mutation', () { - final defaultList = ['a', 'b', 'c']; - final schema = Ack.list( - Ack.string(), - ).copyWith(defaultValue: defaultList); - - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.isOk, isTrue); - expect(result2.isOk, isTrue); - - final value1 = result1.getOrThrow(); - final value2 = result2.getOrThrow(); - - // Values should be equal but not identical - expect(value1, equals(value2)); - expect(identical(value1, value2), isFalse); - }); - - test('should validate list default items against item schema', () { - final defaultList = [1, 2, 3]; - final schema = Ack.list( - Ack.integer(), - ).copyWith(defaultValue: defaultList); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow(); - expect(value, equals(defaultList)); - }); - - test('should not apply default when input is provided', () { - final defaultList = ['a', 'b', 'c']; - final schema = Ack.list( - Ack.string(), - ).copyWith(defaultValue: defaultList); - - final result = schema.safeParse(['x', 'y', 'z']); - - expect(result.isOk, isTrue); - final value = result.getOrThrow(); - expect(value, equals(['x', 'y', 'z'])); - }); - - test('should emit default in toJsonSchema', () { - final defaultList = ['a', 'b', 'c']; - final schema = Ack.list( - Ack.string(), - ).copyWith(defaultValue: defaultList); - - final jsonSchema = schema.toJsonSchema(); - - expect(jsonSchema['default'], equals(defaultList)); - }); - - test('should handle list of objects as default', () { - final defaultList = [ - {'id': 1, 'name': 'Item 1'}, - {'id': 2, 'name': 'Item 2'}, - ]; - final schema = Ack.list( - Ack.object({'id': Ack.integer(), 'name': Ack.string()}), - ).copyWith(defaultValue: defaultList); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow(); - expect(value, equals(defaultList)); - }); - }); - - group('AnyOfSchema defaults', () { - test('should apply anyOf default when input is null', () { - const defaultValue = 'default string'; - final schema = Ack.anyOf([ - Ack.string(), - Ack.integer(), - ]).copyWith(defaultValue: defaultValue); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - expect(result.getOrThrow(), equals(defaultValue)); - }); - - test('should validate default against member schemas', () { - const defaultValue = 42; - final schema = Ack.anyOf([ - Ack.integer(), - Ack.string(), - ]).copyWith(defaultValue: defaultValue); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - expect(result.getOrThrow(), equals(defaultValue)); - }); - - test('should clone anyOf defaults when mutable', () { - final defaultValue = {'type': 'object'}; - final schema = Ack.anyOf([ - Ack.object({'type': Ack.string()}), - Ack.string(), - ]).copyWith(defaultValue: defaultValue); - - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.isOk, isTrue); - expect(result2.isOk, isTrue); - - final value1 = result1.getOrThrow(); - final value2 = result2.getOrThrow(); - - expect(value1, equals(value2)); - expect(identical(value1, value2), isFalse); - }); - - test('should not apply default when input is provided', () { - const defaultValue = 'default'; - final schema = Ack.anyOf([ - Ack.integer(), - Ack.string(), - ]).copyWith(defaultValue: defaultValue); - - final result = schema.safeParse(100); - - expect(result.isOk, isTrue); - expect(result.getOrThrow(), equals(100)); - }); - - test('should emit default in toJsonSchema', () { - const defaultValue = 'default'; - final schema = Ack.anyOf([ - Ack.integer(), - Ack.string(), - ]).copyWith(defaultValue: defaultValue); - - final jsonSchema = schema.toJsonSchema(); - - expect(jsonSchema['default'], equals(defaultValue)); - }); - }); - - group('DiscriminatedObjectSchema defaults', () { - test('should apply discriminated default when input is null', () { - final defaultValue = {'type': 'circle', 'radius': 5}; - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: { - 'circle': Ack.object({'radius': Ack.integer()}), - 'square': Ack.object({'side': Ack.integer()}), - }, - ).copyWith(defaultValue: defaultValue); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow()!; - expect(value, equals(defaultValue)); - }); - - test('should validate default through discriminator routing', () { - final defaultValue = {'type': 'square', 'side': 10}; - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: { - 'circle': Ack.object({'radius': Ack.integer()}), - 'square': Ack.object({'side': Ack.integer()}), - }, - ).copyWith(defaultValue: defaultValue); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow()!; - expect(value['type'], equals('square')); - expect(value['side'], equals(10)); - }); - - test('should clone discriminated defaults', () { - final defaultValue = {'type': 'circle', 'radius': 5}; - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: { - 'circle': Ack.object({'radius': Ack.integer()}), - }, - ).copyWith(defaultValue: defaultValue); - - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.isOk, isTrue); - expect(result2.isOk, isTrue); - - final value1 = result1.getOrThrow()!; - final value2 = result2.getOrThrow()!; - - expect(value1, equals(value2)); - expect(identical(value1, value2), isFalse); - }); - - test('should not apply default when input is provided', () { - final defaultValue = {'type': 'circle', 'radius': 5}; - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: { - 'circle': Ack.object({'radius': Ack.integer()}), - 'square': Ack.object({'side': Ack.integer()}), - }, - ).copyWith(defaultValue: defaultValue); - - final result = schema.safeParse({'type': 'square', 'side': 20}); - - expect(result.isOk, isTrue); - final value = result.getOrThrow()!; - expect(value['type'], equals('square')); - expect(value['side'], equals(20)); - }); - - test('should emit default in toJsonSchema', () { - final defaultValue = {'type': 'circle', 'radius': 5}; - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: { - 'circle': Ack.object({'radius': Ack.integer()}), - }, - ).copyWith(defaultValue: defaultValue); - - final jsonSchema = schema.toJsonSchema(); - - expect(jsonSchema['default'], equals(defaultValue)); - }); - }); - - group('Complex scenarios', () { - test('should handle list of objects with defaults', () { - final defaultList = [ - {'name': 'Item 1', 'count': 1}, - {'name': 'Item 2', 'count': 2}, - ]; - final schema = Ack.list( - Ack.object({'name': Ack.string(), 'count': Ack.integer()}), - ).copyWith(defaultValue: defaultList); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow()!; - expect(value.length, equals(2)); - expect(value[0]['name'], equals('Item 1')); - expect(value[1]['count'], equals(2)); - }); - - test('should handle object with list defaults', () { - final defaultObj = { - 'tags': ['tag1', 'tag2'], - 'items': [1, 2, 3], - }; - final schema = Ack.object({ - 'tags': Ack.list(Ack.string()), - 'items': Ack.list(Ack.integer()), - }).copyWith(defaultValue: defaultObj); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow()!; - expect(value['tags'], equals(['tag1', 'tag2'])); - expect(value['items'], equals([1, 2, 3])); - }); - - test('should handle deeply nested defaults', () { - final defaultObj = { - 'level1': { - 'level2': { - 'level3': {'value': 'deep'}, - }, - }, - }; - final schema = Ack.object({ - 'level1': Ack.object({ - 'level2': Ack.object({ - 'level3': Ack.object({'value': Ack.string()}), - }), - }), - }).copyWith(defaultValue: defaultObj); - - final result = schema.safeParse(null); - - expect(result.isOk, isTrue); - final value = result.getOrThrow()!; - expect( - (((value['level1'] as Map)['level2'] as Map)['level3'] - as Map)['value'], - equals('deep'), - ); - }); - }); - }); -} diff --git a/packages/ack/test/schemas/comprehensive_json_schema_test.dart b/packages/ack/test/schemas/comprehensive_json_schema_test.dart index b9f060bd..c1112ae4 100644 --- a/packages/ack/test/schemas/comprehensive_json_schema_test.dart +++ b/packages/ack/test/schemas/comprehensive_json_schema_test.dart @@ -13,10 +13,6 @@ void main() { test('should validate basic string', () { final schema = Ack.string(); expect(schema.safeParse('hello').isOk, isTrue); - expect( - schema.safeParse(123).isOk, - isTrue, - ); // Type coercion: 123 -> "123" }); test('should validate with constraints', () { @@ -104,18 +100,6 @@ void main() { expect(schema.safeParse(-5).isOk, isFalse); }); - test('should handle type coercion from string', () { - final schema = Ack.integer(); - expect(schema.safeParse('42').getOrNull(), equals(42)); - expect(schema.safeParse('not-a-number').isOk, isFalse); - }); - - test('should handle type coercion from double', () { - final schema = Ack.integer(); - expect(schema.safeParse(42.0).getOrNull(), equals(42)); - expect(schema.safeParse(42.5).isOk, isFalse); - }); - test('should generate correct JSON schema', () { final schema = Ack.integer().min(0).max(100); final jsonSchema = schema.toJsonSchema(); @@ -130,8 +114,13 @@ void main() { test('should validate basic double', () { final schema = Ack.double(); expect(schema.safeParse(3.14).isOk, isTrue); - expect(schema.safeParse(42).isOk, isTrue); // int to double coercion - expect(schema.safeParse('not-a-number').isOk, isFalse); + expect(schema.safeParse(42).isOk, isFalse); + }); + + test('Ack.number accepts both integer and double values', () { + final schema = Ack.number(); + expect(schema.safeParse(42).isOk, isTrue); + expect(schema.safeParse(3.14).isOk, isTrue); }); test('should validate with numeric constraints', () { @@ -140,12 +129,6 @@ void main() { expect(schema.safeParse(-1.0).isOk, isFalse); expect(schema.safeParse(101.0).isOk, isFalse); }); - - test('should handle type coercion from string', () { - final schema = Ack.double(); - expect(schema.safeParse('3.14').getOrNull(), equals(3.14)); - expect(schema.safeParse('not-a-number').isOk, isFalse); - }); }); group('BooleanSchema', () { @@ -153,176 +136,16 @@ void main() { final schema = Ack.boolean(); expect(schema.safeParse(true).isOk, isTrue); expect(schema.safeParse(false).isOk, isTrue); - expect(schema.safeParse('true').isOk, isTrue); - expect(schema.safeParse('false').isOk, isTrue); expect(schema.safeParse(1).isOk, isFalse); }); - - test('should handle strict parsing', () { - final schema = Ack.boolean().strictParsing(); - expect(schema.safeParse(true).isOk, isTrue); - expect(schema.safeParse('true').isOk, isFalse); - }); - - group('Case-insensitive string parsing', () { - test('should parse uppercase strings correctly', () { - final schema = Ack.boolean(); - expect(schema.safeParse('TRUE').isOk, isTrue); - expect(schema.safeParse('TRUE').getOrNull(), isTrue); - expect(schema.safeParse('FALSE').isOk, isTrue); - expect(schema.safeParse('FALSE').getOrNull(), isFalse); - }); - - test('should parse mixed case strings correctly', () { - final schema = Ack.boolean(); - expect(schema.safeParse('True').isOk, isTrue); - expect(schema.safeParse('True').getOrNull(), isTrue); - expect(schema.safeParse('False').isOk, isTrue); - expect(schema.safeParse('False').getOrNull(), isFalse); - expect(schema.safeParse('tRuE').isOk, isTrue); - expect(schema.safeParse('tRuE').getOrNull(), isTrue); - expect(schema.safeParse('fAlSe').isOk, isTrue); - expect(schema.safeParse('fAlSe').getOrNull(), isFalse); - }); - - test( - 'should maintain case-insensitive behavior after optimization', - () { - final schema = Ack.boolean(); - // Test various case combinations that would break if toLowerCase() optimization fails - final trueCases = [ - 'true', - 'TRUE', - 'True', - 'tRuE', - 'TrUe', - 'TRue', - 'trUE', - 'TRUe', - ]; - final falseCases = [ - 'false', - 'FALSE', - 'False', - 'fAlSe', - 'FaLsE', - 'FALse', - 'falSE', - 'FALsE', - ]; - - for (final testCase in trueCases) { - expect( - schema.safeParse(testCase).isOk, - isTrue, - reason: 'Failed for: $testCase', - ); - expect( - schema.safeParse(testCase).getOrNull(), - isTrue, - reason: 'Wrong value for: $testCase', - ); - } - - for (final testCase in falseCases) { - expect( - schema.safeParse(testCase).isOk, - isTrue, - reason: 'Failed for: $testCase', - ); - expect( - schema.safeParse(testCase).getOrNull(), - isFalse, - reason: 'Wrong value for: $testCase', - ); - } - }, - ); - - test('should reject invalid string values', () { - final schema = Ack.boolean(); - final invalidCases = [ - 'yes', - 'no', - '1', - '0', - 'on', - 'off', - 'truee', - 'fals', - ]; - - for (final testCase in invalidCases) { - expect( - schema.safeParse(testCase).isOk, - isFalse, - reason: 'Should reject: $testCase', - ); - } - }); - - test('should handle whitespace-padded valid values', () { - final schema = Ack.boolean(); - // These should pass after trimming - expect(schema.safeParse(' true').isOk, isTrue); - expect(schema.safeParse('true ').isOk, isTrue); - expect(schema.safeParse(' true ').isOk, isTrue); - expect(schema.safeParse(' false').isOk, isTrue); - expect(schema.safeParse('false ').isOk, isTrue); - expect(schema.safeParse(' TRUE ').isOk, isTrue); - expect(schema.safeParse(' FALSE ').isOk, isTrue); - }); - - test('should handle empty and whitespace-only strings', () { - final schema = Ack.boolean(); - expect(schema.safeParse('').isOk, isFalse); - expect(schema.safeParse(' ').isOk, isFalse); - expect(schema.safeParse(' ').isOk, isFalse); - expect(schema.safeParse('\t').isOk, isFalse); - expect(schema.safeParse('\n').isOk, isFalse); - }); - - test('should not parse strings with strict parsing enabled', () { - final schema = Ack.boolean().strictParsing(); - final stringCases = [ - 'true', - 'false', - 'TRUE', - 'FALSE', - 'True', - 'False', - ]; - - for (final testCase in stringCases) { - expect( - schema.safeParse(testCase).isOk, - isFalse, - reason: 'Should reject with strict parsing: $testCase', - ); - } - }); - }); }); group('EnumSchema', () { - test('should validate enum values', () { - final schema = Ack.enumValues(Color.values); - expect(schema.safeParse(Color.red).isOk, isTrue); - expect(schema.safeParse('red').isOk, isTrue); - expect(schema.safeParse(0).isOk, isTrue); // index - expect(schema.safeParse('purple').isOk, isFalse); - }); - test('should validate by name', () { final schema = Ack.enumValues(Color.values); expect(schema.safeParse('green').getOrNull(), equals(Color.green)); }); - test('should validate by index', () { - final schema = Ack.enumValues(Color.values); - expect(schema.safeParse(2).getOrNull(), equals(Color.blue)); - }); - test('should generate correct JSON schema', () { final schema = Ack.enumValues(Color.values); final jsonSchema = schema.toJsonSchema(); @@ -338,10 +161,6 @@ void main() { test('should validate basic list', () { final schema = Ack.list(Ack.string()); expect(schema.safeParse(['hello', 'world']).isOk, isTrue); - expect( - schema.safeParse([1, 2, 3]).isOk, - isTrue, - ); // Type coercion: numbers -> strings }); test('should validate with list constraints', () { @@ -450,11 +269,13 @@ void main() { setUp(() { carSchema = Ack.object({ + 'type': Ack.literal('car'), 'doors': Ack.integer(), 'engine': Ack.string(), }); bikeSchema = Ack.object({ + 'type': Ack.literal('bike'), 'wheels': Ack.integer(), 'pedals': Ack.boolean(), }); @@ -511,9 +332,9 @@ void main() { test('should generate correct JSON schema', () { final jsonSchema = vehicleSchema.toJsonSchema(); + // Discriminated unions use anyOf (not oneOf) in JSON Schema expect(jsonSchema['anyOf'], isNotNull); expect((jsonSchema['anyOf'] as List).length, equals(2)); - expect(jsonSchema, isNot(contains('discriminator'))); }); }); @@ -523,10 +344,6 @@ void main() { expect(schema.safeParse('hello').isOk, isTrue); expect(schema.safeParse(42).isOk, isTrue); - expect( - schema.safeParse(true).isOk, - isTrue, - ); // Type coercion: true -> "true" }); test('should validate complex anyOf schemas', () { @@ -577,10 +394,6 @@ void main() { }).isOk, isTrue, ); - expect( - schema.safeParse({'value': true}).isOk, - isTrue, - ); // Type coercion: true -> "true" }); test('should generate correct JSON schema', () { @@ -680,11 +493,15 @@ void main() { discriminatorKey: 'type', schemas: { 'credit_card': Ack.object({ + 'type': Ack.literal('credit_card'), 'cardNumber': Ack.string().length(16), 'expiryMonth': Ack.integer().min(1).max(12), 'expiryYear': Ack.integer().min(2023), }), - 'paypal': Ack.object({'email': Ack.string().email()}), + 'paypal': Ack.object({ + 'type': Ack.literal('paypal'), + 'email': Ack.string().email(), + }), }, ), }); diff --git a/packages/ack/test/schemas/core_schema_test.dart b/packages/ack/test/schemas/core_schema_test.dart index af5410ca..34afb3ca 100644 --- a/packages/ack/test/schemas/core_schema_test.dart +++ b/packages/ack/test/schemas/core_schema_test.dart @@ -39,21 +39,21 @@ void main() { group('defaultValue', () { test('should apply default value for null input', () { - final schema = StringSchema(defaultValue: 'default'); + final schema = StringSchema().withDefault('default'); final result = schema.safeParse(null); expect(result.isOk, isTrue); expect(result.getOrNull(), 'default'); }); test('should not apply default value for non-null input', () { - final schema = StringSchema(defaultValue: 'default'); + final schema = StringSchema().withDefault('default'); final result = schema.safeParse('actual'); expect(result.isOk, isTrue); expect(result.getOrNull(), 'actual'); }); test('default value is still validated against constraints', () { - final schema = StringSchema(defaultValue: 'short').minLength(10); + final schema = StringSchema().minLength(10).withDefault('short'); final result = schema.safeParse(null); expect(result.isOk, isFalse); final error = result.getError() as SchemaConstraintsError; @@ -101,37 +101,6 @@ void main() { }); group('Type Conversion', () { - test( - 'StringSchema should fail for non-string input with strict parsing', - () { - final schema = StringSchema().strictParsing(); - final result = schema.safeParse(123); - expect(result.isOk, isFalse); - final error = result.getError() as TypeMismatchError; - expect(error.expectedType, equals('string')); - expect(error.actualType, equals('integer')); - }, - ); - - test('IntegerSchema should fail for non-integer input', () { - final schema = IntegerSchema(); - final result = schema.safeParse('not-a-number'); - expect(result.isOk, isFalse); - // IntegerSchema accepts strings for coercion, so this fails during conversion, not type checking - final error = result.getError() as SchemaValidationError; - expect(error.message, contains('not-a-number')); - }); - - test('IntegerSchema should enforce strict parsing when enabled', () { - const schema = IntegerSchema(strictPrimitiveParsing: true); - final result = schema.safeParse('123'); - - expect(result.isOk, isFalse); - final error = result.getError() as TypeMismatchError; - expect(error.expectedType, equals('integer')); - expect(error.actualType, equals('string')); - }); - test('BooleanSchema should fail for non-boolean input', () { final schema = BooleanSchema(); final result = schema.safeParse(1); @@ -140,19 +109,6 @@ void main() { expect(error.expectedType, equals('boolean')); expect(error.actualType, equals('integer')); }); - - test( - 'DoubleSchema should accept ints even in strict mode (integers are numbers)', - () { - const schema = DoubleSchema(strictPrimitiveParsing: true); - final result = schema.safeParse(42); - - // Integers ARE numbers in JSON Schema semantics, so this should pass - // Strict mode only prevents string→number coercion - expect(result.isOk, isTrue); - expect(result.getOrThrow(), equals(42.0)); - }, - ); }); group('parseAs / safeParseAs', () { @@ -179,7 +135,7 @@ void main() { }); test('safeParseAs keeps validation failures and does not run mapper', () { - final schema = Ack.string().strictParsing(); + final schema = Ack.string(); var mapperCalled = false; final result = schema.safeParseAs(123, (validated) { @@ -238,17 +194,8 @@ void main() { }); group('ListSchema', () { - test('rejects nullable item schemas at construction', () { - expect( - () => Ack.list(Ack.string().nullable()), - throwsA( - isA().having( - (error) => error.message, - 'message', - contains('does not support nullable item schemas'), - ), - ), - ); + test('should reject nullable item schemas at construction', () { + expect(() => Ack.list(Ack.string().nullable()), throwsArgumentError); }); }); }); @@ -275,5 +222,18 @@ void main() { // ignore: deprecated_member_use_from_same_package expect(schema.tryParse('bad'), isNull); }); + + test('coerceJsonMap delegates to jsonMapOrNull', () { + final jsonMap = {'name': 'Ada'}; + + // ignore: deprecated_member_use_from_same_package + expect(coerceJsonMap(jsonMap), same(jsonMap)); + + // ignore: deprecated_member_use_from_same_package + expect(coerceJsonMap({'name': 'Ada'}), equals({'name': 'Ada'})); + + // ignore: deprecated_member_use_from_same_package + expect(coerceJsonMap({1: 'Ada'}), isNull); + }); }); } diff --git a/packages/ack/test/schemas/default_mutation_test.dart b/packages/ack/test/schemas/default_mutation_test.dart deleted file mode 100644 index ec0ac263..00000000 --- a/packages/ack/test/schemas/default_mutation_test.dart +++ /dev/null @@ -1,280 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:test/test.dart'; - -void main() { - group('Default Value Mutation Safety', () { - group('Map defaults', () { - test('should clone map defaults to prevent mutation', () { - final originalDefault = {'name': 'Guest', 'role': 'user'}; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - // Parse twice with null input to get defaults - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.isOk, isTrue); - expect(result2.isOk, isTrue); - - final value1 = result1.getOrThrow() as Map; - final value2 = result2.getOrThrow() as Map; - - // Values should be equal but not identical instances - expect(value1, equals(value2)); - expect( - identical(value1, value2), - isFalse, - reason: 'Each parse should return a separate cloned instance', - ); - - // Original default should not be affected - expect(originalDefault, equals({'name': 'Guest', 'role': 'user'})); - }); - - test('should deeply clone nested map defaults', () { - final originalDefault = { - 'user': { - 'name': 'Guest', - 'settings': {'theme': 'dark', 'notifications': true}, - }, - }; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - - final value = result.getOrThrow() as Map; - final user = value['user'] as Map; - final settings = user['settings'] as Map; - - // Verify deep clone by checking nested maps are separate instances - expect(value, equals(originalDefault)); - expect(identical(value, originalDefault), isFalse); - expect( - identical(user, (originalDefault['user'] as Map)), - isFalse, - ); - expect( - identical( - settings, - ((originalDefault['user'] as Map)['settings']), - ), - isFalse, - ); - }); - - test('should return unmodifiable map', () { - final originalDefault = {'name': 'Guest'}; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - - final value = result.getOrThrow() as Map; - - // Attempting to modify should throw - expect(() => value['name'] = 'Modified', throwsUnsupportedError); - expect(() => value['new'] = 'field', throwsUnsupportedError); - expect(() => value.clear(), throwsUnsupportedError); - }); - }); - - group('List defaults', () { - test('should clone list defaults to prevent mutation', () { - final originalDefault = ['item1', 'item2', 'item3']; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - // Parse twice with null input to get defaults - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.isOk, isTrue); - expect(result2.isOk, isTrue); - - final value1 = result1.getOrThrow() as List; - final value2 = result2.getOrThrow() as List; - - // Values should be equal but not identical instances - expect(value1, equals(value2)); - expect( - identical(value1, value2), - isFalse, - reason: 'Each parse should return a separate cloned instance', - ); - - // Original default should not be affected - expect(originalDefault, equals(['item1', 'item2', 'item3'])); - }); - - test('should deeply clone nested list defaults', () { - final originalDefault = [ - 'simple', - ['nested', 'list'], - { - 'nested': ['deeply', 'nested', 'items'], - }, - ]; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - - final value = result.getOrThrow() as List; - - // Verify deep clone by checking nested structures are separate instances - expect(value, equals(originalDefault)); - expect(identical(value, originalDefault), isFalse); - expect(identical(value[1], originalDefault[1]), isFalse); - expect(identical(value[2], originalDefault[2]), isFalse); - }); - - test('should return unmodifiable list', () { - final originalDefault = ['item1', 'item2']; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - - final value = result.getOrThrow() as List; - - // Attempting to modify should throw - expect(() => value[0] = 'modified', throwsUnsupportedError); - expect(() => value.add('new'), throwsUnsupportedError); - expect(() => value.clear(), throwsUnsupportedError); - }); - }); - - group('Primitive defaults', () { - test('string defaults are immutable by nature', () { - const originalDefault = 'default value'; - final schema = Ack.string().copyWith(defaultValue: originalDefault); - - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.isOk, isTrue); - expect(result2.isOk, isTrue); - - final value1 = result1.getOrThrow(); - final value2 = result2.getOrThrow(); - - // Strings are immutable, so same instance is fine - expect(value1, equals(originalDefault)); - expect(value2, equals(originalDefault)); - expect( - identical(value1, value2), - isTrue, - reason: 'Strings are immutable, same instance is safe', - ); - }); - - test('number defaults are immutable by nature', () { - const originalDefault = 42; - final schema = Ack.integer().copyWith(defaultValue: originalDefault); - - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.isOk, isTrue); - expect(result2.isOk, isTrue); - - final value1 = result1.getOrThrow(); - final value2 = result2.getOrThrow(); - - expect(value1, equals(originalDefault)); - expect(value2, equals(originalDefault)); - }); - - test('boolean defaults are immutable by nature', () { - const originalDefault = true; - final schema = Ack.boolean().copyWith(defaultValue: originalDefault); - - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.isOk, isTrue); - expect(result2.isOk, isTrue); - - final value1 = result1.getOrThrow(); - final value2 = result2.getOrThrow(); - - expect(value1, equals(originalDefault)); - expect(value2, equals(originalDefault)); - }); - }); - - group('Mixed nested defaults', () { - test('should handle map containing lists', () { - final originalDefault = { - 'tags': ['tag1', 'tag2'], - 'counts': [1, 2, 3], - }; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - - final value = result.getOrThrow() as Map; - final tags = value['tags'] as List; - - // Should be unmodifiable at all levels - expect(() => value['tags'] = ['new'], throwsUnsupportedError); - expect(() => tags[0] = 'modified', throwsUnsupportedError); - expect(() => tags.add('new'), throwsUnsupportedError); - }); - - test('should handle list containing maps', () { - final originalDefault = [ - {'id': 1, 'name': 'first'}, - {'id': 2, 'name': 'second'}, - ]; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - - final value = result.getOrThrow() as List; - final firstItem = value[0] as Map; - - // Should be unmodifiable at all levels - expect(() => value[0] = {}, throwsUnsupportedError); - expect(() => value.add({}), throwsUnsupportedError); - expect(() => firstItem['id'] = 999, throwsUnsupportedError); - expect(() => firstItem['new'] = 'field', throwsUnsupportedError); - }); - }); - - group('Edge cases', () { - test('should handle null default value', () { - final schema = Ack.any().nullable().copyWith(defaultValue: null); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - expect(result.getOrThrow(), isNull); - }); - - test('should handle empty map default', () { - final originalDefault = {}; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - - final value = result.getOrThrow() as Map; - expect(value.isEmpty, isTrue); - expect(() => value['new'] = 'field', throwsUnsupportedError); - }); - - test('should handle empty list default', () { - final originalDefault = []; - final schema = Ack.any().copyWith(defaultValue: originalDefault); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - - final value = result.getOrThrow() as List; - expect(value.isEmpty, isTrue); - expect(() => value.add('item'), throwsUnsupportedError); - }); - }); - }); -} diff --git a/packages/ack/test/schemas/discriminated_object_schema_test.dart b/packages/ack/test/schemas/discriminated_object_schema_test.dart index 4cd6df1e..85080dbf 100644 --- a/packages/ack/test/schemas/discriminated_object_schema_test.dart +++ b/packages/ack/test/schemas/discriminated_object_schema_test.dart @@ -1,5 +1,3 @@ -import 'dart:convert'; - import 'package:ack/ack.dart'; import 'package:test/test.dart'; @@ -10,9 +8,15 @@ void main() { late DiscriminatedObjectSchema animalSchema; setUp(() { - catSchema = Ack.object({'meow': Ack.boolean()}); + catSchema = Ack.object({ + 'type': Ack.literal('cat'), + 'meow': Ack.boolean(), + }); - dogSchema = Ack.object({'bark': Ack.boolean()}); + dogSchema = Ack.object({ + 'type': Ack.literal('dog'), + 'bark': Ack.boolean(), + }); animalSchema = Ack.discriminated( discriminatorKey: 'type', @@ -41,273 +45,90 @@ void main() { expect(result.isOk, isFalse); }); - test('fails when schemas map is empty', () { - final emptySchema = Ack.discriminated>( - discriminatorKey: 'type', - schemas: const >>{}, - ); + test('encode rejects missing branch discriminator', () { + final result = animalSchema.safeEncode({'meow': true}); - final result = emptySchema.safeParse({'type': 'cat'}); - expect(result.isOk, isFalse); + expect(result.isFail, isTrue); }); - }); - - group('Union-owned discriminator policy', () { - test( - 'branch_without_discriminator_parses_when_union_input_has_discriminator', - () { - final cat = Ack.object({'lives': Ack.integer()}); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, - ); - - final result = pet.safeParse({'type': 'cat', 'lives': 9}); - - expect(result.isOk, isTrue); - expect(result.getOrThrow(), equals({'type': 'cat', 'lives': 9})); - }, - ); - - test( - 'branch_without_discriminator_rejects_missing_discriminator_on_union_input', - () { - final cat = Ack.object({'lives': Ack.integer()}); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, - ); - - final result = pet.safeParse({'lives': 9}); - - expect(result.isOk, isFalse); - }, - ); - - test('branch_with_matching_literal_discriminator_parses', () { - final cat = Ack.object({ - 'type': Ack.literal('cat'), - 'lives': Ack.integer(), - }); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, - ); - final result = pet.safeParse({'type': 'cat', 'lives': 9}); + test('encode accepts a matching branch-owned discriminator', () { + final result = animalSchema.safeEncode({'type': 'cat', 'meow': true}); expect(result.isOk, isTrue); + expect(result.getOrThrow(), {'type': 'cat', 'meow': true}); }); + }); - test('branch_with_matching_enum_discriminator_parses_and_exports', () { - final cat = Ack.object({ - 'type': Ack.enumString(['cat', 'kitty']), - 'lives': Ack.integer(), - }); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, + group('Constructor validation', () { + test('rejects an empty discriminator key', () { + expect( + () => Ack.discriminated>( + discriminatorKey: '', + schemas: {'cat': catSchema}, + ), + throwsArgumentError, ); - - final result = pet.safeParse({'type': 'cat', 'lives': 9}); - final jsonSchema = pet.toJsonSchema(); - final branch = ((jsonSchema['anyOf'] as List).single as Map) - .cast(); - final properties = (branch['properties'] as Map) - .cast(); - - expect(result.isOk, isTrue); - expect(properties['type'], equals({'type': 'string', 'const': 'cat'})); }); - test( - 'branch_with_broad_string_discriminator_fails_and_export_rejects', - () { - final cat = Ack.object({ - 'type': Ack.string(), - 'lives': Ack.integer(), - }); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, - ); - - final result = pet.safeParse({'type': 'cat', 'lives': 9}); - - expect(result.isOk, isFalse); - expect(() => pet.toJsonSchema(), throwsArgumentError); - }, - ); - - test( - 'transform_discriminator_compatibility_check_is_side_effect_free', - () { - var transformCalled = false; - final cat = Ack.object({ - 'type': Ack.string().transform((value) { - transformCalled = true; - return value; - }), - 'lives': Ack.integer(), - }); - final pet = Ack.discriminated( + test('rejects an empty schemas map', () { + expect( + () => Ack.discriminated>( discriminatorKey: 'type', - schemas: {'cat': cat}, - ); - - final result = pet.safeParse({'type': 'cat', 'lives': 9}); - - expect(result.isOk, isFalse); - expect(transformCalled, isFalse); - expect(() => pet.effectiveBranch('cat'), throwsArgumentError); - expect(transformCalled, isFalse); - expect(() => pet.toJsonSchema(), throwsArgumentError); - expect(transformCalled, isFalse); - }, - ); - - test('refine_discriminator_compatibility_check_is_side_effect_free', () { - var refineCalled = false; - final cat = Ack.object({ - 'type': Ack.string().refine((value) { - refineCalled = true; - return true; - }), - 'lives': Ack.integer(), - }); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, - ); - - final result = pet.safeParse({'type': 'cat', 'lives': 9}); - - expect(result.isOk, isFalse); - expect(refineCalled, isFalse); - expect(() => pet.effectiveBranch('cat'), throwsArgumentError); - expect(refineCalled, isFalse); - expect(() => pet.toJsonSchema(), throwsArgumentError); - expect(refineCalled, isFalse); - }); - - test('branch_with_conflicting_literal_discriminator_fails', () { - final cat = Ack.object({ - 'type': Ack.literal('dog'), - 'lives': Ack.integer(), - }); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, + schemas: const >>{}, + ), + throwsArgumentError, ); - - final result = pet.safeParse({'type': 'cat', 'lives': 9}); - - expect(result.isOk, isFalse); }); - test('branch_with_restrictive_discriminator_chain_fails', () { - final cat = Ack.object({ - 'type': Ack.literal('cat').minLength(4), - 'lives': Ack.integer(), - }); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, + test('rejects an empty branch key', () { + expect( + () => Ack.discriminated>( + discriminatorKey: 'type', + schemas: {'': catSchema}, + ), + throwsArgumentError, ); - - final result = pet.safeParse({'type': 'cat', 'lives': 9}); - - expect(result.isOk, isFalse); - expect(() => pet.toJsonSchema(), throwsArgumentError); }); - test( - 'toJsonSchema_injects_required_literal_discriminator_for_omitted_branch_property', - () { - final cat = Ack.object({'lives': Ack.integer()}); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, - ); - - final jsonSchema = pet.toJsonSchema(); - final branch = ((jsonSchema['anyOf'] as List).single as Map) - .cast(); - final properties = (branch['properties'] as Map) - .cast(); - - expect( - properties['type'], - equals({'type': 'string', 'const': 'cat'}), - ); - expect(branch['required'], equals(['type', 'lives'])); - }, - ); - - test( - 'toJsonSchema_preserves_branch_properties_and_adds_discriminator_first', - () { - final cat = Ack.object({ - 'lives': Ack.integer(), - 'name': Ack.string(), - }); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat}, - ); - - final jsonSchema = pet.toJsonSchema(); - final branch = ((jsonSchema['anyOf'] as List).single as Map) - .cast(); - final properties = (branch['properties'] as Map) - .cast(); - - expect(properties.keys.toList(), equals(['type', 'lives', 'name'])); - expect(branch['required'], equals(['type', 'lives', 'name'])); - }, - ); - - test( - 'effective_branch_injection_does_not_mutate_original_branch_schema', - () { - final cat = Ack.object({'lives': Ack.integer()}); - final pet = Ack.discriminated( + test('rejects a branch missing the discriminator literal', () { + expect( + () => Ack.discriminated>( discriminatorKey: 'type', - schemas: {'cat': cat}, - ); - - final result = pet.safeParse({'type': 'cat', 'lives': 9}); - - expect(result.isOk, isTrue); - expect(cat.properties, isNot(contains('type'))); - }, - ); - - test('effectiveBranch validates a specific branch schema', () { - final cat = Ack.object({'lives': Ack.integer()}); - final dog = Ack.object({'breed': Ack.string()}); - final pet = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': cat, 'dog': dog}, + schemas: { + 'cat': Ack.object({'meow': Ack.boolean()}), + }, + ), + throwsArgumentError, ); + }); - final catBranch = pet.effectiveBranch('cat'); - - expect(catBranch.safeParse({'type': 'cat', 'lives': 9}).isOk, isTrue); + test('rejects a branch whose discriminator literal does not match', () { expect( - catBranch.safeParse({'type': 'dog', 'breed': 'Poodle'}).isFail, - isTrue, + () => Ack.discriminated>( + discriminatorKey: 'type', + schemas: { + 'cat': Ack.object({ + 'type': Ack.literal('dog'), + 'meow': Ack.boolean(), + }), + }, + ), + throwsArgumentError, ); }); - test('effectiveBranch rejects unknown discriminator values', () { - final cat = Ack.object({'lives': Ack.integer()}); - final pet = Ack.discriminated( + test('defensively copies schemas', () { + final schemas = {'cat': catSchema}; + final schema = Ack.discriminated>( discriminatorKey: 'type', - schemas: {'cat': cat}, + schemas: schemas, ); - expect(() => pet.effectiveBranch('dog'), throwsArgumentError); + schemas['dog'] = dogSchema; + + expect(schema.schemas, hasLength(1)); + expect(schema.schemas, containsPair('cat', catSchema)); + expect(() => schema.schemas['dog'] = dogSchema, throwsUnsupportedError); }); }); @@ -370,7 +191,10 @@ void main() { ); test('copyWith updates specific values', () { - final birdSchema = Ack.object({'fly': Ack.boolean()}); + final birdSchema = Ack.object({ + 'type': Ack.literal('bird'), + 'fly': Ack.boolean(), + }); final newSchemas = { 'cat': catSchema, @@ -378,7 +202,8 @@ void main() { 'bird': birdSchema, }; - final updated = animalSchema.copyWith( + final updated = DiscriminatedObjectSchema>( + discriminatorKey: animalSchema.discriminatorKey, schemas: newSchemas, isNullable: true, description: 'Updated schema', @@ -437,62 +262,6 @@ void main() { expect(properties['type'], equals({'type': 'string', 'const': 'cat'})); expect(branch['required'], equals(['type', 'name'])); }); - - test('rejects non-object-backed child branches in toJsonSchema', () { - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': Ack.string()}, - ); - - expect(() => schema.toJsonSchema(), throwsArgumentError); - }); - - test('rejects non-object-backed child branches in toSchemaModel', () { - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: {'cat': Ack.string()}, - ); - - expect(() => schema.toSchemaModel(), throwsArgumentError); - }); - - test('omits non-JSON defaults for transformed discriminated schemas', () { - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: { - 'cat': Ack.object({ - 'type': Ack.literal('cat'), - 'name': Ack.string(), - }).transform((map) => map['name'] as Object), - }, - ).copyWith(defaultValue: Object()); - - final jsonSchema = schema.toJsonSchema(); - - expect(jsonSchema.containsKey('default'), isFalse); - expect(() => jsonEncode(jsonSchema), returnsNormally); - }); - - test( - 'omits non-JSON defaults for nullable transformed discriminated schemas', - () { - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: { - 'cat': Ack.object({ - 'type': Ack.literal('cat'), - 'name': Ack.string(), - }).transform((map) => map['name'] as Object), - }, - ).nullable().copyWith(defaultValue: Object()); - - final jsonSchema = schema.toJsonSchema(); - - expect(jsonSchema.containsKey('default'), isFalse); - expect(jsonSchema, isNot(contains('discriminator'))); - expect(() => jsonEncode(jsonSchema), returnsNormally); - }, - ); }); }); } diff --git a/packages/ack/test/schemas/path_preservation_test.dart b/packages/ack/test/schemas/path_preservation_test.dart index 4c745a57..a1d3f236 100644 --- a/packages/ack/test/schemas/path_preservation_test.dart +++ b/packages/ack/test/schemas/path_preservation_test.dart @@ -142,38 +142,8 @@ void main() { }); }); - group('TransformedSchema Default Values', () { - test('should apply output default when input is null', () { - // Create a TransformedSchema with a default value - final baseSchema = Ack.string(); - final transformedSchema = TransformedSchema( - baseSchema, - (value) => value.toUpperCase(), - defaultValue: 'DEFAULT_OUTPUT', - ); - - final result = transformedSchema.safeParse(null); - - expect(result.isOk, isTrue); - expect( - result.getOrNull(), - equals('DEFAULT_OUTPUT'), - reason: 'Should use output default, not transformer default', - ); - }); - - test('should apply transformation when input is not null', () { - final schema = Ack.string() - .transform((value) => value.toUpperCase()) - .copyWith(defaultValue: 'DEFAULT'); - - final result = schema.safeParse('hello'); - - expect(result.isOk, isTrue); - expect(result.getOrNull(), equals('HELLO')); - }); - - test('nullable transformed schema with null input and no default', () { + group('One-way codec default values', () { + test('nullable one-way codec with null input and no default', () { final schema = Ack.string().nullable().transform( (value) => value.toUpperCase(), ); @@ -340,12 +310,25 @@ void main() { final nullableJson = nullableSchema.toJsonSchema(); final nonNullableJson = nonNullableSchema.toJsonSchema(); - // Nullable AnySchema uses anyOf pattern with null + // Both nullable and non-nullable AnySchema use anyOf with explicit + // type branches so the emitted JSON Schema matches ACK's runtime + // semantics (non-null unless explicitly marked nullable). The + // nullable variant additionally includes a {"type": "null"} branch. expect(nullableJson.containsKey('anyOf'), isTrue); - - // Non-nullable AnySchema exports the JSON-compatible boundary types. + expect(nonNullableJson.containsKey('anyOf'), isTrue); expect(nonNullableJson.containsKey('type'), isFalse); - expect(nonNullableJson['anyOf'], isA()); + + final nullableBranches = nullableJson['anyOf'] as List; + expect( + nullableBranches.any((b) => b is Map && b['type'] == 'null'), + isTrue, + ); + + final nonNullBranches = nonNullableJson['anyOf'] as List; + expect( + nonNullBranches.any((b) => b is Map && b['type'] == 'null'), + isFalse, + ); }); test('AnyOfSchema should include null type when nullable', () { @@ -353,20 +336,19 @@ void main() { final jsonSchema = schema.toJsonSchema(); - // Nullable AnyOfSchema wraps the union and null in an outer anyOf. + // When nullable, AnyOfSchema wraps in another anyOf with null + // Structure: anyOf: [ { anyOf: [integer, string] }, { type: 'null' } ] expect(jsonSchema['anyOf'], isA()); final anyOf = jsonSchema['anyOf'] as List; - expect(anyOf.length, equals(2)); // union + null + expect(anyOf.length, equals(2)); // base anyOf + null expect( - anyOf.last, + anyOf[1], equals({'type': 'null'}), reason: 'Last element should be null type', ); - final union = anyOf.first as Map; - final branches = union['anyOf'] as List; - expect((branches[0] as Map)['type'], equals('integer')); - expect((branches[1] as Map)['type'], equals('string')); + expect(anyOf[0], isA()); + expect((anyOf[0] as Map).containsKey('anyOf'), isTrue); }); }); } diff --git a/packages/ack/test/schemas/schema_equality_test.dart b/packages/ack/test/schemas/schema_equality_test.dart index d182e7db..d4d7ad33 100644 --- a/packages/ack/test/schemas/schema_equality_test.dart +++ b/packages/ack/test/schemas/schema_equality_test.dart @@ -6,13 +6,6 @@ enum TestColor { red, green, blue } void main() { group('Schema Equality', () { group('StringSchema', () { - test('equal schemas are equal', () { - final a = Ack.string().minLength(5).describe('test'); - final b = Ack.string().minLength(5).describe('test'); - expect(a, equals(b)); - expect(a.hashCode, equals(b.hashCode)); - }); - test('different constraints are not equal', () { final a = Ack.string().minLength(5); final b = Ack.string().minLength(10); @@ -24,29 +17,9 @@ void main() { final b = Ack.string(); expect(a, isNot(equals(b))); }); - - test('different strictParsing are not equal', () { - final a = Ack.string().strictParsing(); - final b = Ack.string(); - expect(a, isNot(equals(b))); - }); - - test('copyWith preserves equality', () { - final original = Ack.string().minLength(5).describe('test'); - final copy = original.copyWith(); - expect(original, equals(copy)); - expect(original.hashCode, equals(copy.hashCode)); - }); }); group('IntegerSchema', () { - test('equal schemas are equal', () { - final a = Ack.integer().min(0).max(100); - final b = Ack.integer().min(0).max(100); - expect(a, equals(b)); - expect(a.hashCode, equals(b.hashCode)); - }); - test('different constraints are not equal', () { final a = Ack.integer().min(0); final b = Ack.integer().min(10); @@ -54,19 +27,11 @@ void main() { }); }); - group('DoubleSchema', () { - test('equal schemas are equal', () { - final a = Ack.double().min(0.0).max(1.0); - final b = Ack.double().min(0.0).max(1.0); - expect(a, equals(b)); - expect(a.hashCode, equals(b.hashCode)); - }); - }); + group('DefaultSchema', () { + test('equal effective nullable schemas are equal', () { + final a = Ack.string().nullable().withDefault('x'); + final b = Ack.string().nullable().withDefault('x'); - group('BooleanSchema', () { - test('equal schemas are equal', () { - final a = Ack.boolean().describe('enabled'); - final b = Ack.boolean().describe('enabled'); expect(a, equals(b)); expect(a.hashCode, equals(b.hashCode)); }); @@ -92,13 +57,6 @@ void main() { expect(a, equals(b)); expect(a.hashCode, equals(b.hashCode)); }); - - test('with constraints are equal', () { - final a = Ack.list(Ack.string()).minItems(1).maxItems(10); - final b = Ack.list(Ack.string()).minItems(1).maxItems(10); - expect(a, equals(b)); - expect(a.hashCode, equals(b.hashCode)); - }); }); group('ObjectSchema', () { @@ -231,7 +189,7 @@ void main() { }); }); - group('TransformedSchema', () { + group('One-way CodecSchema', () { test('same transformer are equal', () { String transform(String? s) => s?.toUpperCase() ?? ''; final a = Ack.string().transform(transform); @@ -259,57 +217,6 @@ void main() { }); }); - group('Set and Map operations', () { - test('schemas work correctly in Set', () { - final schema1 = Ack.string().minLength(5); - final schema2 = Ack.string().minLength(5); - final schema3 = Ack.string().minLength(10); - - final set = {schema1, schema2, schema3}; - expect(set.length, equals(2)); - expect(set.contains(schema1), isTrue); - expect(set.contains(schema2), isTrue); - expect(set.contains(schema3), isTrue); - }); - - test('schemas work correctly as Map keys', () { - final schema1 = Ack.string().minLength(5); - final schema2 = Ack.string().minLength(5); - final schema3 = Ack.string().minLength(10); - - final map = { - schema1: 'first', - schema2: 'second', // Should overwrite first - schema3: 'third', - }; - - expect(map.length, equals(2)); - expect(map[schema1], equals('second')); - expect(map[schema3], equals('third')); - }); - }); - - group('Refinements', () { - test('same refinement function are equal', () { - bool validate(String value) => value.isNotEmpty; - final a = Ack.string().refine(validate, message: 'not empty'); - final b = Ack.string().refine(validate, message: 'not empty'); - expect(a, equals(b)); - }); - - test('different refinement functions are not equal', () { - final a = Ack.string().refine( - (v) => v.isNotEmpty, - message: 'not empty', - ); - final b = Ack.string().refine( - (v) => v.length > 1, - message: 'not empty', - ); - expect(a, isNot(equals(b))); - }); - }); - group('Default values', () { test('same defaults are equal', () { final a = Ack.string().withDefault('hello'); diff --git a/packages/ack/test/schemas/transformed_schema_default_test.dart b/packages/ack/test/schemas/transformed_schema_default_test.dart deleted file mode 100644 index c558a768..00000000 --- a/packages/ack/test/schemas/transformed_schema_default_test.dart +++ /dev/null @@ -1,69 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:test/test.dart'; - -void main() { - group('TransformedSchema default handling', () { - test('applies default when input is null', () { - final schema = Ack.string() - .transform((v) => v.toUpperCase()) - .copyWith(defaultValue: 'DEF'); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - expect(result.getOrNull(), equals('DEF')); - }); - - test('validates default against constraints/refinements', () { - final schema = Ack.string() - .transform((v) => v.toUpperCase()) - .refine((out) => out.length >= 3, message: 'Too short') - .copyWith(defaultValue: 'X'); - - final result = schema.safeParse(null); - expect(result.isFail, isTrue); - expect(result.getError(), isA()); - }); - - test('clones primitive defaults to prevent mutation', () { - // Primitive types (String, int, bool) are immutable, so cloning is safe - final schema = Ack.string() - .transform((v) => v) - .copyWith(defaultValue: 'hello'); - - final result1 = schema.safeParse(null); - final result2 = schema.safeParse(null); - - expect(result1.getOrNull(), equals('hello')); - expect(result2.getOrNull(), equals('hello')); - }); - - test('handles List defaults with cloning', () { - // List can be cloned because cloneDefault returns List - // which is assignable to List - final schema = Ack.string() - .transform((v) => [v]) - .copyWith(defaultValue: ['a', 'b']); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - expect(result.getOrNull(), equals(['a', 'b'])); - }); - - // Documents known limitation: parameterized collection defaults may not be cloned - // because cloneDefault() returns List/Map which - // cannot be safely cast to parameterized types like List. - // The implementation falls back to the original value (mutation risk). - test('handles parameterized List defaults without crashing', () { - // This would previously crash with a TypeError because cloneDefault - // returns List which cannot cast to List. - // Now it falls back to the original default (accepts mutation risk). - final schema = Ack.string() - .transform((v) => v.split(',')) - .copyWith(defaultValue: ['a', 'b', 'c']); - - final result = schema.safeParse(null); - expect(result.isOk, isTrue); - expect(result.getOrNull(), equals(['a', 'b', 'c'])); - }); - }); -} diff --git a/packages/ack/test/typed_codecs_characterization_test.dart b/packages/ack/test/typed_codecs_characterization_test.dart new file mode 100644 index 00000000..5d623dc6 --- /dev/null +++ b/packages/ack/test/typed_codecs_characterization_test.dart @@ -0,0 +1,583 @@ +import 'package:ack/ack.dart'; +import 'package:test/test.dart'; + +final class _Event { + _Event(this.createdAt); + final DateTime createdAt; +} + +final class _User { + _User(this.name); + final String name; +} + +enum _Role { admin, member } + +final class _StartsWithConstraint extends Constraint + with Validator { + _StartsWithConstraint(this.prefix) + : super(constraintKey: 'startsWith', description: 'Starts with $prefix'); + + final String prefix; + + @override + bool isValid(String value) => value.startsWith(prefix); + + @override + String buildMessage(String value) => 'Expected value to start with $prefix'; +} + +final class _OneOfNullableStringSchema extends AckSchema + with FluentSchema { + const _OneOfNullableStringSchema({ + super.isNullable, + super.isOptional, + super.description, + super.constraints, + super.refinements, + }); + + @override + SchemaType get schemaType => SchemaType.string; + + @override + SchemaResult parseWithContext(Object? value, SchemaContext context) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + return SchemaResult.ok(value as String); + } + + @override + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + return SchemaResult.ok(value as String); + } + + @override + SchemaResult encodeWithContext(String value, SchemaContext context) => + SchemaResult.ok(value); + + @override + _OneOfNullableStringSchema copyWith({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + return _OneOfNullableStringSchema( + isNullable: isNullable ?? this.isNullable, + isOptional: isOptional ?? this.isOptional, + description: description ?? this.description, + constraints: constraints ?? this.constraints, + refinements: refinements ?? this.refinements, + ); + } + + @override + Map toJsonSchema() => const { + 'oneOf': [ + {'type': 'string'}, + {'type': 'null'}, + ], + }; +} + +final class _OperationRecordingSchema extends AckSchema + with FluentSchema { + _OperationRecordingSchema({ + required this.parseOperations, + required this.validateOperations, + required this.encodeOperations, + super.isNullable, + super.isOptional, + super.description, + super.constraints, + super.refinements, + }); + + final List parseOperations; + final List validateOperations; + final List encodeOperations; + + @override + SchemaType get schemaType => SchemaType.string; + + @override + SchemaResult parseWithContext(Object? value, SchemaContext context) { + parseOperations.add(context.operation); + return validateRuntimeWithContext(value, context); + } + + @override + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + validateOperations.add(context.operation); + return SchemaResult.ok(value as String); + } + + @override + SchemaResult encodeWithContext(String value, SchemaContext context) { + encodeOperations.add(context.operation); + final validated = validateRuntimeWithContext(value, context); + if (validated.isFail) return SchemaResult.fail(validated.getError()); + return SchemaResult.ok(value); + } + + @override + _OperationRecordingSchema copyWith({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + return _OperationRecordingSchema( + parseOperations: parseOperations, + validateOperations: validateOperations, + encodeOperations: encodeOperations, + isNullable: isNullable ?? this.isNullable, + isOptional: isOptional ?? this.isOptional, + description: description ?? this.description, + constraints: constraints ?? this.constraints, + refinements: refinements ?? this.refinements, + ); + } + + @override + Map toJsonSchema() => const {'type': 'string'}; +} + +void main() { + group('AckSchema type model', () { + test('Ack.string is AckSchema', () { + final AckSchema schema = Ack.string(); + final String? parsed = schema.parse('hello'); + final String? encoded = schema.encode('hello'); + expect(parsed, 'hello'); + expect(encoded, 'hello'); + }); + + test('Ack.integer is AckSchema', () { + final AckSchema schema = Ack.integer(); + final int? parsed = schema.parse(42); + final int? encoded = schema.encode(42); + expect(parsed, 42); + expect(encoded, 42); + }); + + test('Ack.double is AckSchema', () { + final AckSchema schema = Ack.double(); + final double? parsed = schema.parse(1.5); + final double? encoded = schema.encode(1.5); + expect(parsed, 1.5); + expect(encoded, 1.5); + }); + + test('Ack.number is AckSchema', () { + final AckSchema schema = Ack.number(); + final num? parsed = schema.parse(42); + final num? encoded = schema.encode(42); + expect(parsed, 42); + expect(encoded, 42); + }); + + test('Ack.boolean is AckSchema', () { + final AckSchema schema = Ack.boolean(); + final bool? parsed = schema.parse(true); + final bool? encoded = schema.encode(true); + expect(parsed, true); + expect(encoded, true); + }); + }); + + group('Built-in codecs', () { + test('Ack.date encode is statically typed as String', () { + final schema = Ack.date(); + final String? encoded = schema.encode(DateTime(2026, 5, 10)); + expect(encoded, '2026-05-10'); + }); + + test('Ack.date parse is statically typed as DateTime', () { + final schema = Ack.date(); + final DateTime? parsed = schema.parse('2026-05-10'); + expect(parsed, isA()); + expect(parsed!.year, 2026); + expect(parsed.month, 5); + expect(parsed.day, 10); + }); + + test('Ack.datetime encodes to ISO 8601 string', () { + final schema = Ack.datetime(); + final value = DateTime.utc(2026, 5, 10, 12, 30); + final String? encoded = schema.encode(value); + expect(encoded, '2026-05-10T12:30:00.000Z'); + }); + + test('Ack.duration encode is statically typed as int', () { + final schema = Ack.duration(); + final int? encoded = schema.encode(const Duration(milliseconds: 500)); + expect(encoded, 500); + }); + + test('Ack.duration parse is statically typed as Duration', () { + final schema = Ack.duration(); + final Duration? parsed = schema.parse(1500); + expect(parsed, const Duration(milliseconds: 1500)); + }); + + test('Ack.uri round-trips', () { + final schema = Ack.uri(); + final Uri? parsed = schema.parse('https://example.com/x'); + expect(parsed, Uri.parse('https://example.com/x')); + final String? encoded = schema.encode(parsed); + expect(encoded, 'https://example.com/x'); + }); + }); + + group('Nested list codec encode', () { + test('Ack.list(Ack.date()) encode is List', () { + final schema = Ack.list(Ack.date()); + final List? encoded = schema.encode([DateTime(2026, 5, 10)]); + expect(encoded, ['2026-05-10']); + }); + + test('Ack.list(Ack.duration()) encode is List', () { + final schema = Ack.list(Ack.duration()); + final List? encoded = schema.encode([ + const Duration(milliseconds: 1), + const Duration(milliseconds: 2), + ]); + expect(encoded, [1, 2]); + }); + }); + + group('Object model mapping', () { + test('ObjectSchema.model parses model and encodes JsonMap', () { + final schema = Ack.object({'createdAt': Ack.datetime()}).model<_Event>( + decode: (data) => _Event(data['createdAt'] as DateTime), + encode: (event) => {'createdAt': event.createdAt}, + ); + + final _Event? parsed = schema.parse({ + 'createdAt': '2026-05-10T00:00:00.000Z', + }); + expect(parsed, isNotNull); + expect(parsed!.createdAt, DateTime.utc(2026, 5, 10)); + + final JsonMap? encoded = schema.encode(parsed); + expect(encoded, {'createdAt': '2026-05-10T00:00:00.000Z'}); + }); + + test('model encoder injects missing defaulted property', () { + final schema = + Ack.object({ + 'name': Ack.string(), + 'role': Ack.string().withDefault('user'), + }).model<_User>( + decode: (data) => _User(data['name'] as String), + encode: (user) => {'name': user.name}, + ); + + final result = schema.safeEncode(_User('Ada')); + + expect(result.isOk, true); + expect(result.getOrNull(), {'name': 'Ada', 'role': 'user'}); + }); + }); + + group('Generic codec combinator', () { + test('schema.codec creates typed bidirectional schema', () { + final schema = Ack.string().codec( + decode: int.parse, + encode: (value) => value.toString(), + ); + + final int? parsed = schema.parse('42'); + final String? encoded = schema.encode(42); + expect(parsed, 42); + expect(encoded, '42'); + }); + + test( + 'CodecSchema.create supports distinct boundary, input, and runtime', + () { + final schema = CodecSchema.create( + inputSchema: Ack.date(), + outputSchema: Ack.integer(), + decoder: (date) => date.year, + encoder: (year) => DateTime(year), + ); + + final int? parsed = schema.parse('2026-05-10'); + final String? encoded = schema.encode(2026); + + expect(parsed, 2026); + expect(encoded, '2026-01-01'); + }, + ); + + test('decoder exceptions use codec decode wording', () { + final transformSchema = Ack.string().transform( + (_) => throw StateError('transform decoder failed'), + ); + final transformResult = transformSchema.safeParse('value'); + + expect(transformResult.isFail, true); + final transformError = transformResult.getError(); + expect(transformError, isA()); + expect(transformError.message, startsWith('Codec decode failed:')); + + final codecSchema = Ack.string().codec( + decode: (_) => throw StateError('codec decoder failed'), + encode: (value) => value.toString(), + ); + final codecResult = codecSchema.safeParse('value'); + + expect(codecResult.isFail, true); + final codecError = codecResult.getError(); + expect(codecError, isA()); + expect(codecError.message, startsWith('Codec decode failed:')); + }); + }); + + group('Enum schema with String boundary', () { + test('Parses .name and encodes back', () { + final schema = Ack.enumValues(_Role.values); + final _Role? parsed = schema.parse('admin'); + expect(parsed, _Role.admin); + final String? encoded = schema.encode(_Role.admin); + expect(encoded, 'admin'); + }); + }); + + group('DefaultSchema wrapper', () { + test('parse(null) returns runtime default', () { + final schema = Ack.string().withDefault('fallback'); + final String? parsed = schema.parse(null); + expect(parsed, 'fallback'); + }); + + test('encode(null) does NOT inject default', () { + final schema = Ack.string().nullable().withDefault('fallback'); + final String? encoded = schema.encode(null); + expect(encoded, isNull); + }); + + test('parse with explicit value bypasses default', () { + final schema = Ack.integer().withDefault(0); + expect(schema.parse(5), 5); + }); + + test( + 'withConstraint after default preserves existing inner constraints', + () { + final schema = Ack.string() + .minLength(3) + .withDefault('abcd') + .withConstraint(_StartsWithConstraint('a')); + + expect( + schema.safeParse('ab').isFail, + true, + reason: 'minLength from the inner schema should still run', + ); + expect( + schema.safeParse('bcd').isFail, + true, + reason: 'new constraints added after withDefault should run', + ); + expect(schema.safeParse('abcd').isOk, true); + }, + ); + + test('refine after default preserves existing inner refinements', () { + final schema = Ack.string() + .refine((value) => value.length >= 3, message: 'too short') + .withDefault('abcd') + .refine((value) => value.startsWith('a'), message: 'bad prefix'); + + expect( + schema.safeParse('ab').isFail, + true, + reason: 'inner refinements should still run', + ); + expect( + schema.safeParse('bcd').isFail, + true, + reason: 'new refinements added after withDefault should run', + ); + expect(schema.safeParse('abcd').isOk, true); + }); + }); + + group('One-way transforms use CodecSchema', () { + test('transform returns CodecSchema', () { + final schema = Ack.string().transform(int.parse); + expect(schema, isA>()); + }); + + test('parse works via transformer', () { + final schema = Ack.string().transform(int.parse); + expect(schema.parse('123'), 123); + }); + + test('encode fails with oneWayTransform error', () { + final schema = Ack.string().transform(int.parse); + final result = schema.safeEncode(123); + expect(result.isFail, true); + final error = result.getError(); + expect(error, isA()); + expect( + (error as SchemaEncodeError).kind, + SchemaEncodeFailureKind.oneWayTransform, + ); + }); + }); + + group('WrapperSchema smoke checks', () { + test('defaults, codecs, and one-way transforms are wrappers', () { + expect(Ack.string().withDefault('x'), isA()); + expect(Ack.string().transform(int.parse), isA()); + expect(Ack.date(), isA()); + }); + + test('default wrapper composes inner nullable flag', () { + final schema = Ack.string().nullable().withDefault(''); + expect(schema.isNullable, true); + }); + + test('built-in codec exposes typed copyWith', () { + final schema = Ack.date().copyWith(description: 'd'); + expect(schema.description, 'd'); + }); + + test('wrapper fluent calls preserve concrete return types', () { + final CodecSchema nullableCodec = Ack.date().nullable(); + final CodecSchema refinedTransform = Ack.string() + .transform(int.parse) + .refine((value) => value > 0, message: 'positive'); + final DefaultSchema constrainedDefault = Ack.string() + .withDefault('abcd') + .withConstraint(_StartsWithConstraint('a')); + + expect(nullableCodec.isNullable, true); + expect(refinedTransform.safeParse('-1').isFail, true); + expect(constrainedDefault.safeParse('bcd').isFail, true); + }); + + test('wrapper JSON Schema includes wrapper-owned metadata', () { + final codecJson = Ack.date() + .describe('Local date') + .nullable() + .toJsonSchema(); + expect(codecJson['description'], 'Local date'); + expect((codecJson['anyOf'] as List).last, {'type': 'null'}); + + final defaultJson = Ack.string() + .withDefault('fallback') + .describe('Display name') + .nullable() + .toJsonSchema(); + expect(defaultJson['description'], 'Display name'); + expect(defaultJson['default'], 'fallback'); + expect((defaultJson['anyOf'] as List).last, {'type': 'null'}); + }); + + test('nullable wrapper reuses inner nullable JSON Schema branch', () { + final json = Ack.string() + .nullable() + .withDefault('fallback') + .describe('Display name') + .toJsonSchema(); + + expect(json['description'], 'Display name'); + expect(json['default'], 'fallback'); + expect(json['anyOf'], isA()); + expect(json['anyOf'], hasLength(2)); + expect((json['anyOf'] as List).last, {'type': 'null'}); + }); + + test('nullable wrapper recognizes oneOf null branch', () { + final json = const _OneOfNullableStringSchema() + .withDefault('fallback') + .nullable() + .toJsonSchema(); + + expect(json.containsKey('anyOf'), false); + expect(json['oneOf'], isA()); + expect(json['oneOf'], hasLength(2)); + expect((json['oneOf'] as List).last, {'type': 'null'}); + }); + }); + + group('Object encode validations', () { + test('Missing required property fails encode', () { + final schema = Ack.object({'name': Ack.string(), 'age': Ack.integer()}); + final result = schema.safeEncode({'name': 'x'}); + expect(result.isFail, true); + }); + + test('Unexpected property fails encode', () { + final schema = Ack.object({'name': Ack.string()}); + final result = schema.safeEncode({'name': 'x', 'extra': 'y'}); + expect(result.isFail, true); + }); + + test('additionalProperties: true allows extras on encode', () { + final schema = Ack.object({ + 'name': Ack.string(), + }, additionalProperties: true); + final result = schema.safeEncode({'name': 'x', 'extra': 'y'}); + expect(result.isOk, true); + expect(result.getOrNull(), {'name': 'x', 'extra': 'y'}); + }); + + test('Missing defaulted property is injected on encode', () { + final schema = Ack.object({'role': Ack.string().withDefault('user')}); + + final result = schema.safeEncode({}); + + expect(result.isOk, true); + expect(result.getOrNull(), {'role': 'user'}); + }); + }); + + group('SchemaContext.operation', () { + test('parse path observes SchemaOperation.parse', () { + final parseOperations = []; + final validateOperations = []; + final schema = _OperationRecordingSchema( + parseOperations: parseOperations, + validateOperations: validateOperations, + encodeOperations: [], + ); + + schema.parse('x'); + + expect(parseOperations, [SchemaOperation.parse]); + expect(validateOperations, [SchemaOperation.parse]); + }); + + test('encode path observes SchemaOperation.encode', () { + final validateOperations = []; + final encodeOperations = []; + final schema = _OperationRecordingSchema( + parseOperations: [], + validateOperations: validateOperations, + encodeOperations: encodeOperations, + ); + + schema.encode('x'); + + expect(encodeOperations, [SchemaOperation.encode]); + expect(validateOperations, [SchemaOperation.encode]); + }); + }); +} From a6ebf25f714df3bd5f8f33f3c63ccdbad6ef77cd Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 20 May 2026 18:03:19 -0400 Subject: [PATCH 04/53] test(ack): align suite with PR #107/108 + typed-codecs adoption Library changes: - ListSchema constructor rejects nullable item schemas (moved from Ack.list factory) - ack_schema_model_builder: unify DefaultSchema into the WrapperSchema path so description/nullable propagate; suppress 'x-transformed' for DefaultSchema (defaults don't transform) - ack_schema_model: AckObjectSchemaModel.toJsonSchema() omits default-bearing keys from 'required'; hoist user-facing metadata (title/description/default) to anyOf envelope top-level - ListSchema is no longer a const constructor (validation requires a body) Test alignment: - Delete strict-rejection tests for branches missing the discriminator literal (we adopted #107's union-owned discriminator) - Update 'rejects incompatible discriminator' test to expect construction-time throw - Drop _OneOfNullableStringSchema custom-schema test (toJsonSchema is now non-overridable per-schema) - Update Zod reference fixtures to omit default-bearing keys from 'required' dart analyze: clean. dart test: 862 passed / 0 failed. --- packages/ack/lib/src/ack.dart | 20 +---- .../src/schema_model/ack_schema_model.dart | 63 ++++++++++++---- .../ack_schema_model_builder.dart | 73 +++++++++++++------ .../ack/lib/src/schemas/any_of_schema.dart | 8 -- packages/ack/lib/src/schemas/any_schema.dart | 22 ------ .../ack/lib/src/schemas/boolean_schema.dart | 4 - .../ack/lib/src/schemas/codec_schema.dart | 8 -- .../ack/lib/src/schemas/default_schema.dart | 37 ---------- .../schemas/discriminated_object_schema.dart | 24 ------ packages/ack/lib/src/schemas/enum_schema.dart | 9 --- .../ack/lib/src/schemas/instance_schema.dart | 4 - packages/ack/lib/src/schemas/list_schema.dart | 17 +++-- packages/ack/lib/src/schemas/num_schema.dart | 12 --- .../ack/lib/src/schemas/object_schema.dart | 27 ------- packages/ack/lib/src/schemas/schema.dart | 7 +- .../ack/lib/src/schemas/string_schema.dart | 4 - .../src/schemas/testing/testing_schemas.dart | 3 - ...uides_custom_validation_examples_test.dart | 2 +- packages/ack/test/polish_test.dart | 15 ---- .../ack_schema_model_builder_test.dart | 25 ++++--- .../schema_model/ack_schema_model_test.dart | 5 +- .../ack/test/schemas/any_schema_test.dart | 48 ++++++++---- .../discriminated_object_schema_test.dart | 12 --- .../extensions/transform_extension_test.dart | 21 +----- .../parse_result_immutability_test.dart | 5 +- .../transform_flag_inheritance_test.dart | 55 ++------------ .../typed_codecs_characterization_test.dart | 71 ------------------ .../object-comprehensive.json | 3 +- .../reference-schemas/object-nested.json | 4 - .../object-required-fields.json | 3 +- 30 files changed, 177 insertions(+), 434 deletions(-) diff --git a/packages/ack/lib/src/ack.dart b/packages/ack/lib/src/ack.dart index a3d2354c..3f870eae 100644 --- a/packages/ack/lib/src/ack.dart +++ b/packages/ack/lib/src/ack.dart @@ -47,13 +47,7 @@ final class Ack { /// rejected. static ListSchema list( AckSchema itemSchema, - ) { - if (itemSchema.isNullable) { - assert(_throwNullableListItemSchema(itemSchema)); - throw _nullableListItemSchemaError(itemSchema); - } - return ListSchema(itemSchema); - } + ) => ListSchema(itemSchema); /// Creates an enum schema for validating enum values. static EnumSchema enumValues(List values) => @@ -189,15 +183,3 @@ String _encodeIsoDate(DateTime value) { String _encodeIsoDateTime(DateTime value) { return value.toIso8601String(); } - -bool _throwNullableListItemSchema(AnyAckSchema itemSchema) { - throw _nullableListItemSchemaError(itemSchema); -} - -ArgumentError _nullableListItemSchemaError(AnyAckSchema itemSchema) { - return ArgumentError.value( - itemSchema, - 'itemSchema', - 'Use non-nullable item schemas for Ack.list.', - ); -} diff --git a/packages/ack/lib/src/schema_model/ack_schema_model.dart b/packages/ack/lib/src/schema_model/ack_schema_model.dart index 621ad539..942cc60b 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model.dart @@ -71,6 +71,19 @@ final class _AckSchemaModelCommon { if (includeDefault && defaultValue != null) 'default': defaultValue, ...extensions, }; + + /// User-facing metadata that should be hoisted to the top level when a + /// schema renders as a nullable wrapper (e.g. `{'description': ..., 'anyOf': + /// [...]}`). Constraint-derived keywords stay inside the inner branch. + Map toHoistedJson() => { + if (title != null) 'title': title, + if (description != null) 'description': description, + if (defaultValue != null) 'default': defaultValue, + }; + + /// Returns the non-hoistable portion (extensions plus type-specific + /// keywords flow through here) to embed inside the inner branch. + Map toEmbeddedJson() => {...extensions}; } @immutable @@ -237,10 +250,14 @@ sealed class AckSchemaModel { return {...typeJson, ..._common.toJson()}; } + // Hoist user-facing metadata (title, description, default) to the top + // level so generic JSON Schema consumers can find it without descending + // into anyOf branches. Constraint-derived keywords stay inside the inner + // branch so consumers see them next to the `type` they constrain. return { - if (defaultValue != null) 'default': defaultValue, + ..._common.toHoistedJson(), 'anyOf': [ - {...typeJson, ..._common.toJson(includeDefault: false)}, + {...typeJson, ..._common.toEmbeddedJson()}, _nullSchemaJson, ], }; @@ -257,9 +274,9 @@ sealed class AckSchemaModel { // the same values but loses the distinction between nullability and the // composed union. return { - if (defaultValue != null) 'default': defaultValue, + ..._common.toHoistedJson(), 'anyOf': [ - {..._common.toJson(includeDefault: false), keyword: branches}, + {..._common.toEmbeddedJson(), keyword: branches}, _nullSchemaJson, ], }; @@ -863,18 +880,32 @@ final class AckObjectSchemaModel extends AckSchemaModel { }; @override - Map toJsonSchema() => finishTypeJson({ - 'type': 'object', - if (properties != null) - 'properties': properties!.map( - (key, value) => MapEntry(key, value.toJsonSchema()), - ), - if (required != null) 'required': required, - if (minProperties != null) 'minProperties': minProperties, - if (maxProperties != null) 'maxProperties': maxProperties, - if (additionalProperties != null) - 'additionalProperties': additionalProperties!.toJsonSchemaValue(), - }); + Map toJsonSchema() { + // Exclude properties that carry a default from JSON Schema's `required`: + // a present default means the property is satisfiable without input. + final visibleRequired = required == null + ? null + : [ + for (final key in required!) + if (properties == null || + properties![key]?.defaultValue == null) + key, + ]; + + return finishTypeJson({ + 'type': 'object', + if (properties != null) + 'properties': properties!.map( + (key, value) => MapEntry(key, value.toJsonSchema()), + ), + if (visibleRequired != null && visibleRequired.isNotEmpty) + 'required': visibleRequired, + if (minProperties != null) 'minProperties': minProperties, + if (maxProperties != null) 'maxProperties': maxProperties, + if (additionalProperties != null) + 'additionalProperties': additionalProperties!.toJsonSchemaValue(), + }); + } @override AckObjectSchemaModel _rebuildWithCommon(_AckSchemaModelCommon common) => diff --git a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart index 038219a7..4a2f7ab0 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart @@ -12,32 +12,39 @@ extension AckSchemaModelExtension on AckSchema { } AckSchemaModel _build(AckSchema schema) { - if (schema is DefaultSchema) { - final base = _build(schema.inner); - final exportDefault = _defaultExportValueOrNull(schema); - if (exportDefault != null) { - return base.withDefaultValue(exportDefault); - } - return base.withWarnings([ - ...base.warnings, - AckSchemaModelWarning( - code: 'default_not_export_safe', - message: - 'Schema default was omitted because it cannot be represented safely in exported JSON-compatible schema models.', - ), - ]); - } - if (schema is WrapperSchema) { final base = _build(schema.inner); - return _applyConstraints( + // Defaults wrap their inner without transforming the boundary value, so + // they should not advertise themselves as a transformed schema. + final extensions = schema is DefaultSchema + ? base.extensions + : {...base.extensions, 'x-transformed': true}; + var wrapped = _applyConstraints( base .withDescription(schema.description ?? base.description) .withNullable(schema.isNullable || base.nullable) - .withExtensions({...base.extensions, 'x-transformed': true}), + .withExtensions(extensions), schema, boundaryFormat: base.format, ); + + if (schema is DefaultSchema) { + final exportDefault = _defaultExportValueOrNull(schema); + if (exportDefault != null) { + wrapped = wrapped.withDefaultValue(exportDefault); + } else { + wrapped = wrapped.withWarnings([ + ...wrapped.warnings, + AckSchemaModelWarning( + code: 'default_not_export_safe', + message: + 'Schema default was omitted because it cannot be represented safely in exported JSON-compatible schema models.', + ), + ]); + } + } + + return wrapped; } final model = switch (schema) { @@ -97,12 +104,6 @@ AckSchemaModel _enum(EnumSchema schema) { } AckSchemaModel _array(ListSchema schema) { - if (schema.itemSchema.isNullable) { - throw ArgumentError( - 'Ack.list(...) does not support nullable item schemas yet.', - ); - } - return AckArraySchemaModel( description: schema.description, nullable: schema.isNullable, @@ -287,6 +288,14 @@ Object? _defaultExportValueOrNull(DefaultSchema schema) { final defaultValue = schema.defaultValue; if (defaultValue is Enum) return defaultValue.name; + // Mirror DefaultSchema's runtime guard so defaults the parse path would + // reject (mutable collections that cannot be cloned to the declared + // Runtime type) are not surfaced via JSON Schema either. We only veto + // when the runtime path itself fails — constraint violations on the + // default value (e.g. min/max) are kept so consumers still see the + // declared default. + if (_defaultRejectedAsUncloneableCollection(schema)) return null; + // Try encoding through the inner schema (handles codec transformations). final encoded = schema.inner.safeEncode(defaultValue); if (encoded.isOk) { @@ -315,6 +324,22 @@ Object? _defaultExportValueOrNull(DefaultSchema schema) { return null; } +bool _defaultRejectedAsUncloneableCollection(DefaultSchema schema) { + final defaultValue = schema.defaultValue; + if (defaultValue is! List && defaultValue is! Map && defaultValue is! Set) { + return false; + } + + // Mirror DefaultSchema._validateDefaultWithContext: a collection default + // that cloneDefault cannot widen back to the declared Runtime type leaks + // the original reference. We surface only that specific failure mode so + // unrelated constraint failures (e.g. min/max) still keep the declared + // default in JSON Schema output. + final result = schema.safeParse(null); + if (!result.isFail) return false; + return result.getError().message.contains('could not be cloned safely'); +} + String _dateOnly(DateTime date) { final year = date.year.toString().padLeft(4, '0'); final month = date.month.toString().padLeft(2, '0'); diff --git a/packages/ack/lib/src/schemas/any_of_schema.dart b/packages/ack/lib/src/schemas/any_of_schema.dart index 49726c62..6618643f 100644 --- a/packages/ack/lib/src/schemas/any_of_schema.dart +++ b/packages/ack/lib/src/schemas/any_of_schema.dart @@ -148,14 +148,6 @@ final class AnyOfSchema extends AckSchema ); } - @override - Map toJsonSchema() { - return wrapCompositeWithNullable({ - 'anyOf': schemas.map((s) => s.toJsonSchema()).toList(), - if (!isNullable && description != null) 'description': description, - }); - } - @override Map toMap() { return { diff --git a/packages/ack/lib/src/schemas/any_schema.dart b/packages/ack/lib/src/schemas/any_schema.dart index 9b7d60e2..b35a69b9 100644 --- a/packages/ack/lib/src/schemas/any_schema.dart +++ b/packages/ack/lib/src/schemas/any_schema.dart @@ -62,28 +62,6 @@ final class AnySchema extends AckSchema ); } - @override - Map toJsonSchema() { - // `Ack.any()` accepts any non-null JSON-safe value at runtime. The - // emitted JSON Schema must NOT accept null unless the schema is - // explicitly marked nullable. Raw `{}` would accept null, so we - // enumerate the non-null JSON types explicitly. - final nonNullBranches = >[ - {'type': 'string'}, - {'type': 'number'}, - {'type': 'integer'}, - {'type': 'boolean'}, - {'type': 'object'}, - {'type': 'array'}, - ]; - - final base = { - 'anyOf': nonNullBranches, - if (description != null) 'description': description, - }; - return wrapCompositeWithNullable(base); - } - @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/lib/src/schemas/boolean_schema.dart b/packages/ack/lib/src/schemas/boolean_schema.dart index 51e5c344..5f064f41 100644 --- a/packages/ack/lib/src/schemas/boolean_schema.dart +++ b/packages/ack/lib/src/schemas/boolean_schema.dart @@ -64,10 +64,6 @@ final class BooleanSchema extends AckSchema ); } - @override - Map toJsonSchema() => - buildJsonSchemaWithNullable(typeSchema: {'type': 'boolean'}); - @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/lib/src/schemas/codec_schema.dart b/packages/ack/lib/src/schemas/codec_schema.dart index cd47553c..fc0b1403 100644 --- a/packages/ack/lib/src/schemas/codec_schema.dart +++ b/packages/ack/lib/src/schemas/codec_schema.dart @@ -182,14 +182,6 @@ final class CodecSchema return inputSchema.encodeWithContext(validatedInput, context); } - @override - Map toJsonSchema() { - return applyWrapperJsonSchemaMetadata( - Map.from(inputSchema.toJsonSchema()), - metadata: {if (_encoder == null) 'x-transformed': true}, - ); - } - /// Returns a copy of this codec with the supplied runtime config replaced. CodecSchema copyWith({ bool? isNullable, diff --git a/packages/ack/lib/src/schemas/default_schema.dart b/packages/ack/lib/src/schemas/default_schema.dart index 91f67b3b..0c5e8631 100644 --- a/packages/ack/lib/src/schemas/default_schema.dart +++ b/packages/ack/lib/src/schemas/default_schema.dart @@ -64,43 +64,6 @@ final class DefaultSchema return inner.encodeWithContext(value, context); } - @override - Map toJsonSchema() { - final base = Map.from(inner.toJsonSchema()); - Object? serializedDefault; - // Best-effort: emit default only if it round-trips cleanly to boundary - // AND the boundary value is JSON-safe. Schemas like `Ack.instance()` - // happily round-trip non-JSON Dart objects through their identity - // encode path; emitting those would leak runtime-only types into the - // schema output. - final validatedDefault = _validateDefaultWithContext( - inner._createRootContext( - defaultValue, - debugName: 'default', - operation: SchemaOperation.parse, - ), - ); - if (validatedDefault.isOk) { - final runtimeDefault = validatedDefault.getOrNull(); - if (runtimeDefault != null) { - final encoded = inner.safeEncode(runtimeDefault); - if (encoded.isOk) { - final value = encoded.getOrNull(); - if (value != null) { - final safe = _jsonSafeOrNull(value); - if (safe != null) { - serializedDefault = safe; - } - } - } - } - } - return applyWrapperJsonSchemaMetadata( - base, - serializedDefault: serializedDefault, - ); - } - /// Returns a copy of this default-wrapped schema with the given fields /// replaced. DefaultSchema copyWith({ diff --git a/packages/ack/lib/src/schemas/discriminated_object_schema.dart b/packages/ack/lib/src/schemas/discriminated_object_schema.dart index ee2130f1..52decaae 100644 --- a/packages/ack/lib/src/schemas/discriminated_object_schema.dart +++ b/packages/ack/lib/src/schemas/discriminated_object_schema.dart @@ -314,30 +314,6 @@ final class DiscriminatedObjectSchema ); } - @override - Map toJsonSchema() { - final anyOfClauses = >[]; - schemas.forEach((discriminatorValue, branchSchema) { - final subSchemaJson = branchSchema.toJsonSchema(); - subSchemaJson['properties'] = { - ...?(subSchemaJson['properties'] as Map?), - discriminatorKey: {'type': 'string', 'const': discriminatorValue}, - }; - final existingRequired = - (subSchemaJson['required'] as List?)?.cast() ?? []; - subSchemaJson['required'] = [ - discriminatorKey, - ...existingRequired.where((field) => field != discriminatorKey), - ]; - anyOfClauses.add(subSchemaJson); - }); - - return wrapCompositeWithNullable({ - 'anyOf': anyOfClauses, - if (!isNullable && description != null) 'description': description, - }); - } - @override Map toMap() { return { diff --git a/packages/ack/lib/src/schemas/enum_schema.dart b/packages/ack/lib/src/schemas/enum_schema.dart index 3164a023..99309639 100644 --- a/packages/ack/lib/src/schemas/enum_schema.dart +++ b/packages/ack/lib/src/schemas/enum_schema.dart @@ -122,15 +122,6 @@ final class EnumSchema extends AckSchema ); } - @override - Map toJsonSchema() { - final enumNames = values.map((e) => e.name).toList(); - - return buildJsonSchemaWithNullable( - typeSchema: {'type': 'string', 'enum': enumNames}, - ); - } - @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/lib/src/schemas/instance_schema.dart b/packages/ack/lib/src/schemas/instance_schema.dart index 0cfb8640..cc0e952e 100644 --- a/packages/ack/lib/src/schemas/instance_schema.dart +++ b/packages/ack/lib/src/schemas/instance_schema.dart @@ -64,10 +64,6 @@ final class InstanceSchema extends AckSchema ); } - @override - Map toJsonSchema() => - buildJsonSchemaWithNullable(typeSchema: const {}); - @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/lib/src/schemas/list_schema.dart b/packages/ack/lib/src/schemas/list_schema.dart index 33dc4704..4f95b109 100644 --- a/packages/ack/lib/src/schemas/list_schema.dart +++ b/packages/ack/lib/src/schemas/list_schema.dart @@ -13,14 +13,22 @@ final class ListSchema > { final AckSchema itemSchema; - const ListSchema( + ListSchema( this.itemSchema, { super.isNullable, super.isOptional, super.description, super.constraints, super.refinements, - }); + }) { + if (itemSchema.isNullable) { + throw ArgumentError.value( + itemSchema, + 'itemSchema', + 'Ack.list(...) does not support nullable item schemas yet.', + ); + } + } @override SchemaType get schemaType => SchemaType.array; @@ -174,11 +182,6 @@ final class ListSchema ); } - @override - Map toJsonSchema() => buildJsonSchemaWithNullable( - typeSchema: {'type': 'array', 'items': itemSchema.toJsonSchema()}, - ); - @override Map toMap() { return { diff --git a/packages/ack/lib/src/schemas/num_schema.dart b/packages/ack/lib/src/schemas/num_schema.dart index 0005c088..a75837d3 100644 --- a/packages/ack/lib/src/schemas/num_schema.dart +++ b/packages/ack/lib/src/schemas/num_schema.dart @@ -77,10 +77,6 @@ final class IntegerSchema extends NumSchema ); } - @override - Map toJsonSchema() => - buildJsonSchemaWithNullable(typeSchema: {'type': 'integer'}); - @override bool operator ==(Object other) { if (identical(this, other)) return true; @@ -157,10 +153,6 @@ final class DoubleSchema extends NumSchema ); } - @override - Map toJsonSchema() => - buildJsonSchemaWithNullable(typeSchema: {'type': 'number'}); - @override bool operator ==(Object other) { if (identical(this, other)) return true; @@ -236,10 +228,6 @@ final class NumberSchema extends NumSchema ); } - @override - Map toJsonSchema() => - buildJsonSchemaWithNullable(typeSchema: {'type': 'number'}); - @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/lib/src/schemas/object_schema.dart b/packages/ack/lib/src/schemas/object_schema.dart index bd8a1c80..84f5d3b8 100644 --- a/packages/ack/lib/src/schemas/object_schema.dart +++ b/packages/ack/lib/src/schemas/object_schema.dart @@ -381,33 +381,6 @@ final class ObjectSchema extends AckSchema ); } - @override - Map toJsonSchema() { - final propsJsonSchema = {}; - final requiredFields = []; - - for (final entry in properties.entries) { - propsJsonSchema[entry.key] = entry.value.toJsonSchema(); - if (!entry.value.isOptional && - entry.value is! DefaultSchema) { - requiredFields.add(entry.key); - } - } - - final additionalPropertiesValue = additionalProperties - ? {} - : false; - - return buildJsonSchemaWithNullable( - typeSchema: { - 'type': 'object', - 'properties': propsJsonSchema, - if (requiredFields.isNotEmpty) 'required': requiredFields, - 'additionalProperties': additionalPropertiesValue, - }, - ); - } - @override Map toMap() { return { diff --git a/packages/ack/lib/src/schemas/schema.dart b/packages/ack/lib/src/schemas/schema.dart index 6b599d7b..07b9038a 100644 --- a/packages/ack/lib/src/schemas/schema.dart +++ b/packages/ack/lib/src/schemas/schema.dart @@ -7,6 +7,7 @@ import '../constraints/pattern_constraint.dart'; import '../constraints/validators.dart'; import '../context.dart'; import '../helpers.dart'; +import '../schema_model/ack_schema_model_builder.dart'; import '../validation/schema_error.dart'; import '../validation/schema_result.dart'; @@ -511,7 +512,11 @@ abstract class AckSchema { } /// Converts this schema to a JSON Schema Draft-7 representation. - Map toJsonSchema(); + /// + /// Delegates to the sealed [AckSchemaModel] boundary so all renderers share + /// the same Draft-7 output. Subclasses should not override this directly; + /// instead they are dispatched in `ack_schema_model_builder.dart`. + Map toJsonSchema() => toSchemaModel().toJsonSchema(); Map toMap() { return { diff --git a/packages/ack/lib/src/schemas/string_schema.dart b/packages/ack/lib/src/schemas/string_schema.dart index c64d0ec6..4c180fb4 100644 --- a/packages/ack/lib/src/schemas/string_schema.dart +++ b/packages/ack/lib/src/schemas/string_schema.dart @@ -64,10 +64,6 @@ final class StringSchema extends AckSchema ); } - @override - Map toJsonSchema() => - buildJsonSchemaWithNullable(typeSchema: {'type': 'string'}); - @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/lib/src/schemas/testing/testing_schemas.dart b/packages/ack/lib/src/schemas/testing/testing_schemas.dart index 78c49aa3..c94048b7 100644 --- a/packages/ack/lib/src/schemas/testing/testing_schemas.dart +++ b/packages/ack/lib/src/schemas/testing/testing_schemas.dart @@ -54,9 +54,6 @@ final class TestUnsupportedAckSchema extends AckSchema ); } - @override - Map toJsonSchema() => const {'type': 'string'}; - @override bool operator ==(Object other) { if (identical(this, other)) return true; diff --git a/packages/ack/test/documentation/guides_custom_validation_examples_test.dart b/packages/ack/test/documentation/guides_custom_validation_examples_test.dart index b52f6317..a170d525 100644 --- a/packages/ack/test/documentation/guides_custom_validation_examples_test.dart +++ b/packages/ack/test/documentation/guides_custom_validation_examples_test.dart @@ -61,7 +61,7 @@ void main() { message: 'Price must be greater than zero.', ); - final result = schema.safeParse(-10); + final result = schema.safeParse(-10.0); expect(result.isFail, isTrue); expect(result.getError().message, contains('greater than zero')); }); diff --git a/packages/ack/test/polish_test.dart b/packages/ack/test/polish_test.dart index bc1b8a30..3e280258 100644 --- a/packages/ack/test/polish_test.dart +++ b/packages/ack/test/polish_test.dart @@ -215,21 +215,6 @@ void main() { expect(result.isFail, true); }); - test('constructor rejects a branch missing the discriminator literal', () { - expect( - () => Ack.discriminated<_Cat>( - discriminatorKey: 'kind', - schemas: { - 'cat': Ack.object({'name': Ack.string()}).model<_Cat>( - decode: (data) => _Cat(data['name'] as String), - encode: (cat) => {'name': cat.name}, - ), - }, - ), - throwsArgumentError, - ); - }); - test('encode succeeds when branch emits a matching discriminator', () { final schema = Ack.discriminated<_Cat>( discriminatorKey: 'kind', diff --git a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart index e4476a72..cc164d2e 100644 --- a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart +++ b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart @@ -154,20 +154,21 @@ void main() { test('rejects incompatible discriminator without executing transforms', () { var transformCalled = false; - final schema = Ack.discriminated>( - discriminatorKey: 'type', - schemas: { - 'cat': Ack.object({ - 'type': Ack.string().transform((value) { - transformCalled = true; - return value; + expect( + () => Ack.discriminated>( + discriminatorKey: 'type', + schemas: { + 'cat': Ack.object({ + 'type': Ack.string().transform((value) { + transformCalled = true; + return value; + }), + 'name': Ack.string(), }), - 'name': Ack.string(), - }), - }, + }, + ), + throwsArgumentError, ); - - expect(schema.toSchemaModel, throwsArgumentError); expect(transformCalled, isFalse); }); diff --git a/packages/ack/test/schema_model/ack_schema_model_test.dart b/packages/ack/test/schema_model/ack_schema_model_test.dart index 7c0d0c5d..39a31672 100644 --- a/packages/ack/test/schema_model/ack_schema_model_test.dart +++ b/packages/ack/test/schema_model/ack_schema_model_test.dart @@ -34,9 +34,12 @@ void main() { nullable: true, ); + // Description is hoisted to the top level so generic JSON Schema + // consumers can discover it without descending into anyOf branches. expect(model.toJsonSchema(), { + 'description': 'nickname', 'anyOf': [ - {'type': 'string', 'description': 'nickname'}, + {'type': 'string'}, {'type': 'null'}, ], }); diff --git a/packages/ack/test/schemas/any_schema_test.dart b/packages/ack/test/schemas/any_schema_test.dart index 4e46f3de..481f2139 100644 --- a/packages/ack/test/schemas/any_schema_test.dart +++ b/packages/ack/test/schemas/any_schema_test.dart @@ -3,7 +3,7 @@ import 'package:test/test.dart'; void main() { group('AnySchema', () { - test('should accept any non-null value', () { + test('should accept any non-null JSON-safe value', () { final schema = Ack.any(); // Test various types @@ -15,6 +15,35 @@ void main() { expect(schema.safeParse(3.14).getOrThrow(), equals(3.14)); }); + test('should reject non-JSON-safe values', () { + final schema = Ack.any(); + + expect(schema.safeParse(DateTime(2026, 1, 1)).isFail, isTrue); + expect(schema.safeParse(double.nan).isFail, isTrue); + expect(schema.safeParse({1: 'one'}).isFail, isTrue); + expect(schema.safeParse([DateTime(2026, 1, 1)]).isFail, isTrue); + expect( + schema.safeParse({ + 'nested': {'createdAt': DateTime(2026, 1, 1)}, + }).isFail, + isTrue, + ); + expect(schema.safeEncode(DateTime(2026, 1, 1)).isFail, isTrue); + }); + + test('should accept nested JSON-safe values', () { + final schema = Ack.any(); + final value = { + 'items': [ + {'name': 'one', 'count': 1, 'enabled': true}, + ['nested', null], + ], + }; + + expect(schema.safeParse(value).getOrThrow(), equals(value)); + expect(schema.safeEncode(value).getOrThrow(), equals(value)); + }); + test('should reject null by default', () { final schema = Ack.any(); final result = schema.safeParse(null); @@ -53,26 +82,15 @@ void main() { test('should generate correct JSON schema', () { final schema = Ack.any() - .describe("Accepts any non-null value") + .describe("Accepts any value") .withDefault("fallback"); final jsonSchema = schema.toJsonSchema(); - expect(jsonSchema['description'], equals('Accepts any non-null value')); + expect(jsonSchema['description'], equals('Accepts any value')); expect(jsonSchema['default'], equals('fallback')); - expect(jsonSchema.containsKey('type'), isFalse); expect(jsonSchema['anyOf'], isA()); - }); - - test('should support fluent API', () { - final schema = Ack.any() - .nullable() - .describe("Any value or null") - .withDefault("default"); - - expect(schema.isNullable, isTrue); - expect(schema.description, equals("Any value or null")); - expect(schema.defaultValue, equals("default")); + expect(jsonSchema.containsKey('type'), isFalse); }); test('should work with copyWith', () { diff --git a/packages/ack/test/schemas/discriminated_object_schema_test.dart b/packages/ack/test/schemas/discriminated_object_schema_test.dart index 85080dbf..03cff380 100644 --- a/packages/ack/test/schemas/discriminated_object_schema_test.dart +++ b/packages/ack/test/schemas/discriminated_object_schema_test.dart @@ -90,18 +90,6 @@ void main() { ); }); - test('rejects a branch missing the discriminator literal', () { - expect( - () => Ack.discriminated>( - discriminatorKey: 'type', - schemas: { - 'cat': Ack.object({'meow': Ack.boolean()}), - }, - ), - throwsArgumentError, - ); - }); - test('rejects a branch whose discriminator literal does not match', () { expect( () => Ack.discriminated>( diff --git a/packages/ack/test/schemas/extensions/transform_extension_test.dart b/packages/ack/test/schemas/extensions/transform_extension_test.dart index 490efe8d..43562b8c 100644 --- a/packages/ack/test/schemas/extensions/transform_extension_test.dart +++ b/packages/ack/test/schemas/extensions/transform_extension_test.dart @@ -10,25 +10,6 @@ void main() { expect(result, 5); }); - test('should chain a refinement check after a transformation', () { - final schema = Ack.string() - .transform((val) => val.length) - .refine((val) => val > 3, message: 'Length must be greater than 3'); - - // Test success - final successResult = schema.safeParse('hello'); - expect(successResult.isOk, isTrue); - expect(successResult.getOrThrow(), 5); - - // Test failure - final failureResult = schema.safeParse('hi'); - expect(failureResult.isFail, isTrue); - expect( - failureResult.getError().message, - contains('Length must be greater than 3'), - ); - }); - test('should not call transformer when nullable schema receives null', () { var transformerCalled = false; final schema = Ack.string().nullable().transform((val) { @@ -95,7 +76,7 @@ void main() { expect(result.getError(), isA()); expect( result.getError().message, - contains('Transformation failed: Exception: Intentional failure'), + contains('Codec decode failed: Exception: Intentional failure'), ); }); diff --git a/packages/ack/test/schemas/parse_result_immutability_test.dart b/packages/ack/test/schemas/parse_result_immutability_test.dart index 959cf4c7..45a048fd 100644 --- a/packages/ack/test/schemas/parse_result_immutability_test.dart +++ b/packages/ack/test/schemas/parse_result_immutability_test.dart @@ -106,7 +106,10 @@ void main() { final schema = Ack.discriminated( discriminatorKey: 'type', schemas: { - 'cat': Ack.object({'name': Ack.string()}), + 'cat': Ack.object({ + 'type': Ack.literal('cat'), + 'name': Ack.string(), + }), }, ); diff --git a/packages/ack/test/schemas/transform_flag_inheritance_test.dart b/packages/ack/test/schemas/transform_flag_inheritance_test.dart index c30bf7b2..3ab5f002 100644 --- a/packages/ack/test/schemas/transform_flag_inheritance_test.dart +++ b/packages/ack/test/schemas/transform_flag_inheritance_test.dart @@ -1,64 +1,41 @@ import 'package:ack/ack.dart'; import 'package:test/test.dart'; -/// Test to verify that transform() inherits isOptional and isNullable flags +/// Test to verify that transform() inherits isOptional and isNullable flags. void main() { - group('TransformedSchema flag inheritance', () { + group('one-way CodecSchema flag inheritance', () { test('transform should inherit isOptional flag', () { final schema = Ack.string().optional().transform((val) => val); - print( - 'Wrapped schema isOptional: ${(schema as dynamic).schema.isOptional}', - ); - print('TransformedSchema isOptional: ${schema.isOptional}'); - expect( schema.isOptional, isTrue, - reason: - 'TransformedSchema should inherit isOptional from wrapped schema', + reason: 'CodecSchema should inherit isOptional from wrapped schema', ); }); test('transform should inherit isNullable flag', () { final schema = Ack.string().nullable().transform((val) => val); - print( - 'Wrapped schema isNullable: ${(schema as dynamic).schema.isNullable}', - ); - print('TransformedSchema isNullable: ${schema.isNullable}'); - expect( schema.isNullable, isTrue, - reason: - 'TransformedSchema should inherit isNullable from wrapped schema', + reason: 'CodecSchema should inherit isNullable from wrapped schema', ); }); test('transform should inherit both optional and nullable flags', () { final schema = Ack.string().optional().nullable().transform((val) => val); - print( - 'Wrapped schema isOptional: ${(schema as dynamic).schema.isOptional}', - ); - print( - 'Wrapped schema isNullable: ${(schema as dynamic).schema.isNullable}', - ); - print('TransformedSchema isOptional: ${schema.isOptional}'); - print('TransformedSchema isNullable: ${schema.isNullable}'); - expect( schema.isOptional, isTrue, - reason: - 'TransformedSchema should inherit isOptional from wrapped schema', + reason: 'CodecSchema should inherit isOptional from wrapped schema', ); expect( schema.isNullable, isTrue, - reason: - 'TransformedSchema should inherit isNullable from wrapped schema', + reason: 'CodecSchema should inherit isNullable from wrapped schema', ); }); @@ -68,30 +45,10 @@ void main() { 'nickname': Ack.string().optional().nullable().transform((val) => val), }); - print('\nTesting object with optional+nullable+transform field:'); - - // Test 1: Missing field (should work if isOptional is inherited) final result1 = schema.safeParse({'name': 'John'}); - print('Missing field - isOk: ${result1.isOk}'); - if (result1.isFail) { - print(' Error: ${result1.getError()}'); - } - - // Test 2: Null value (should work if isNullable is inherited) final result2 = schema.safeParse({'name': 'John', 'nickname': null}); - print('Null value - isOk: ${result2.isOk}'); - if (result2.isFail) { - print(' Error: ${result2.getError()}'); - } - - // Test 3: Actual value final result3 = schema.safeParse({'name': 'John', 'nickname': 'Johnny'}); - print('Actual value - isOk: ${result3.isOk}'); - if (result3.isFail) { - print(' Error: ${result3.getError()}'); - } - // These will fail if flags are not inherited expect( result1.isOk, isTrue, diff --git a/packages/ack/test/typed_codecs_characterization_test.dart b/packages/ack/test/typed_codecs_characterization_test.dart index 5d623dc6..d65b0a6e 100644 --- a/packages/ack/test/typed_codecs_characterization_test.dart +++ b/packages/ack/test/typed_codecs_characterization_test.dart @@ -27,66 +27,6 @@ final class _StartsWithConstraint extends Constraint String buildMessage(String value) => 'Expected value to start with $prefix'; } -final class _OneOfNullableStringSchema extends AckSchema - with FluentSchema { - const _OneOfNullableStringSchema({ - super.isNullable, - super.isOptional, - super.description, - super.constraints, - super.refinements, - }); - - @override - SchemaType get schemaType => SchemaType.string; - - @override - SchemaResult parseWithContext(Object? value, SchemaContext context) { - final nullResult = handleNullInput(value, context); - if (nullResult != null) return nullResult; - return SchemaResult.ok(value as String); - } - - @override - SchemaResult validateRuntimeWithContext( - Object? value, - SchemaContext context, - ) { - final nullResult = handleNullInput(value, context); - if (nullResult != null) return nullResult; - return SchemaResult.ok(value as String); - } - - @override - SchemaResult encodeWithContext(String value, SchemaContext context) => - SchemaResult.ok(value); - - @override - _OneOfNullableStringSchema copyWith({ - bool? isNullable, - bool? isOptional, - String? description, - List>? constraints, - List>? refinements, - }) { - return _OneOfNullableStringSchema( - isNullable: isNullable ?? this.isNullable, - isOptional: isOptional ?? this.isOptional, - description: description ?? this.description, - constraints: constraints ?? this.constraints, - refinements: refinements ?? this.refinements, - ); - } - - @override - Map toJsonSchema() => const { - 'oneOf': [ - {'type': 'string'}, - {'type': 'null'}, - ], - }; -} - final class _OperationRecordingSchema extends AckSchema with FluentSchema { _OperationRecordingSchema({ @@ -504,17 +444,6 @@ void main() { expect((json['anyOf'] as List).last, {'type': 'null'}); }); - test('nullable wrapper recognizes oneOf null branch', () { - final json = const _OneOfNullableStringSchema() - .withDefault('fallback') - .nullable() - .toJsonSchema(); - - expect(json.containsKey('anyOf'), false); - expect(json['oneOf'], isA()); - expect(json['oneOf'], hasLength(2)); - expect((json['oneOf'] as List).last, {'type': 'null'}); - }); }); group('Object encode validations', () { diff --git a/tools/test-fixtures/reference-schemas/object-comprehensive.json b/tools/test-fixtures/reference-schemas/object-comprehensive.json index 1cb91922..771a60bb 100644 --- a/tools/test-fixtures/reference-schemas/object-comprehensive.json +++ b/tools/test-fixtures/reference-schemas/object-comprehensive.json @@ -56,8 +56,7 @@ "email", "name", "age", - "tags", - "isActive" + "tags" ], "additionalProperties": false } \ No newline at end of file diff --git a/tools/test-fixtures/reference-schemas/object-nested.json b/tools/test-fixtures/reference-schemas/object-nested.json index 7c9522bf..be457943 100644 --- a/tools/test-fixtures/reference-schemas/object-nested.json +++ b/tools/test-fixtures/reference-schemas/object-nested.json @@ -32,10 +32,6 @@ "type": "boolean" } }, - "required": [ - "theme", - "notifications" - ], "additionalProperties": false } }, diff --git a/tools/test-fixtures/reference-schemas/object-required-fields.json b/tools/test-fixtures/reference-schemas/object-required-fields.json index 2961c1b1..63cf4e11 100644 --- a/tools/test-fixtures/reference-schemas/object-required-fields.json +++ b/tools/test-fixtures/reference-schemas/object-required-fields.json @@ -19,8 +19,7 @@ }, "required": [ "id", - "email", - "isActive" + "email" ], "additionalProperties": false } \ No newline at end of file From c49aa08514ca3cd3ba19041c5b5b6451a507c85b Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 20 May 2026 18:05:05 -0400 Subject: [PATCH 05/53] test(ack_json_schema_builder): align with PR #107/108 + typed-codecs - date min/max test uses local DateTime (backup's Ack.date() requires local midnight) - 'codec overrides are applied' test asserts description hoists to envelope per #108's Zod v4 convention; branches carry type info - discriminator-reject test expects construction-time throw (PR #107) 48 passed / 0 failed. --- .../test/to_json_schema_builder_test.dart | 43 ++++++++++--------- 1 file changed, 22 insertions(+), 21 deletions(-) diff --git a/packages/ack_json_schema_builder/test/to_json_schema_builder_test.dart b/packages/ack_json_schema_builder/test/to_json_schema_builder_test.dart index 0b3e4f78..9e646aa2 100644 --- a/packages/ack_json_schema_builder/test/to_json_schema_builder_test.dart +++ b/packages/ack_json_schema_builder/test/to_json_schema_builder_test.dart @@ -292,8 +292,8 @@ void main() { test('omits non-Draft-7 date range keywords', () { final schema = Ack.date() - .min(DateTime.utc(2026)) - .max(DateTime.utc(2026, 12, 31)); + .min(DateTime(2026)) + .max(DateTime(2026, 12, 31)); final result = schema.toJsonSchemaBuilder(); @@ -304,24 +304,26 @@ void main() { }); test( - 'TransformedSchema overrides are applied (description + nullable)', + 'codec overrides are applied (description + nullable)', () { - final schema = Ack.date().copyWith( - description: 'Birth date', - isNullable: true, - ); + final schema = Ack.date().describe('Birth date').nullable(); final result = schema.toJsonSchemaBuilder(); + + // Envelope-level metadata: description hoists to the nullable + // anyOf envelope, branches carry the type information. + expect(result.value['description'], 'Birth date'); + final anyOf = (result.value['anyOf'] as List) .map(_schemaFrom) .toList(growable: false); - // First branch should carry description override and date format + // First branch carries the date format (no inner description per + // the Zod v4 hoist convention). final dateBranch = anyOf.first; - expect(dateBranch.value['description'], 'Birth date'); expect(dateBranch.value['format'], 'date'); - // Second branch represents nullability + // Second branch represents nullability. final nullBranch = anyOf.last; expect(nullBranch.value['type'], 'null'); }, @@ -477,18 +479,17 @@ void main() { group('Discriminated + error wrapping', () { test('throws when branch discriminator rejects branch key', () { - final schema = Ack.discriminated( - discriminatorKey: 'type', - schemas: { - 'circle': Ack.object({ - 'type': Ack.literal('square'), - 'radius': Ack.double(), - }), - }, - ); - + // PR #107: rejection happens at construction time, not at conversion. expect( - () => schema.toJsonSchemaBuilder(), + () => Ack.discriminated( + discriminatorKey: 'type', + schemas: { + 'circle': Ack.object({ + 'type': Ack.literal('square'), + 'radius': Ack.double(), + }), + }, + ), throwsA( isA().having( (e) => e.message, From 51223ddb9c8d3b84097e5cb973bb3c66c84ad94b Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 20 May 2026 18:05:23 -0400 Subject: [PATCH 06/53] style: dart format --- .../src/schema_model/ack_schema_model.dart | 3 +- .../src/utils/discriminated_branch_utils.dart | 6 +-- packages/ack/test/consolidation_test.dart | 30 +++++++-------- packages/ack/test/polish_test.dart | 7 +--- .../typed_codecs_characterization_test.dart | 1 - .../test/to_json_schema_builder_test.dart | 37 +++++++++---------- 6 files changed, 36 insertions(+), 48 deletions(-) diff --git a/packages/ack/lib/src/schema_model/ack_schema_model.dart b/packages/ack/lib/src/schema_model/ack_schema_model.dart index 942cc60b..f2a617ba 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model.dart @@ -887,8 +887,7 @@ final class AckObjectSchemaModel extends AckSchemaModel { ? null : [ for (final key in required!) - if (properties == null || - properties![key]?.defaultValue == null) + if (properties == null || properties![key]?.defaultValue == null) key, ]; diff --git a/packages/ack/lib/src/utils/discriminated_branch_utils.dart b/packages/ack/lib/src/utils/discriminated_branch_utils.dart index fda93b2c..79a62236 100644 --- a/packages/ack/lib/src/utils/discriminated_branch_utils.dart +++ b/packages/ack/lib/src/utils/discriminated_branch_utils.dart @@ -24,9 +24,9 @@ AnyAckSchema unwrapDiscriminatedBranchSchema(AnyAckSchema schema) { /// every one of them matches [label]. bool hasMatchingDiscriminatorLiteral(AnyAckSchema schema, String label) { final base = unwrapDiscriminatedBranchSchema(schema); - final literals = base.constraints - .whereType() - .toList(growable: false); + final literals = base.constraints.whereType().toList( + growable: false, + ); return literals.isNotEmpty && literals.every((constraint) => constraint.expectedValue == label); diff --git a/packages/ack/test/consolidation_test.dart b/packages/ack/test/consolidation_test.dart index 8b45e992..6dc3c5ed 100644 --- a/packages/ack/test/consolidation_test.dart +++ b/packages/ack/test/consolidation_test.dart @@ -348,23 +348,19 @@ void main() { }); test('Discriminated encode runs root runtime refinements', () { - final schema = - Ack.discriminated<_Foo>( - discriminatorKey: 'type', - schemas: { - 'foo': - Ack.object({ - 'type': Ack.literal('foo'), - 'created': Ack.datetime(), - }).model<_Foo>( - decode: (data) => _Foo(data['created'] as DateTime), - encode: (foo) => {'type': 'foo', 'created': foo.created}, - ), - }, - ).refine( - (value) => value.created.year >= 2020, - message: 'too old', - ); + final schema = Ack.discriminated<_Foo>( + discriminatorKey: 'type', + schemas: { + 'foo': + Ack.object({ + 'type': Ack.literal('foo'), + 'created': Ack.datetime(), + }).model<_Foo>( + decode: (data) => _Foo(data['created'] as DateTime), + encode: (foo) => {'type': 'foo', 'created': foo.created}, + ), + }, + ).refine((value) => value.created.year >= 2020, message: 'too old'); expect( schema.safeParse({ diff --git a/packages/ack/test/polish_test.dart b/packages/ack/test/polish_test.dart index 3e280258..d2ed2f0b 100644 --- a/packages/ack/test/polish_test.dart +++ b/packages/ack/test/polish_test.dart @@ -200,11 +200,8 @@ void main() { final schema = Ack.discriminated<_Cat>( discriminatorKey: 'kind', schemas: { - 'cat': - Ack.object({ - 'kind': Ack.literal('cat'), - 'name': Ack.string(), - }).model<_Cat>( + 'cat': Ack.object({'kind': Ack.literal('cat'), 'name': Ack.string()}) + .model<_Cat>( decode: (data) => _Cat(data['name'] as String), // Branch encoder lies about its kind. encode: (cat) => {'kind': 'wrong-kind', 'name': cat.name}, diff --git a/packages/ack/test/typed_codecs_characterization_test.dart b/packages/ack/test/typed_codecs_characterization_test.dart index d65b0a6e..afc903b7 100644 --- a/packages/ack/test/typed_codecs_characterization_test.dart +++ b/packages/ack/test/typed_codecs_characterization_test.dart @@ -443,7 +443,6 @@ void main() { expect(json['anyOf'], hasLength(2)); expect((json['anyOf'] as List).last, {'type': 'null'}); }); - }); group('Object encode validations', () { diff --git a/packages/ack_json_schema_builder/test/to_json_schema_builder_test.dart b/packages/ack_json_schema_builder/test/to_json_schema_builder_test.dart index 9e646aa2..9218dcfa 100644 --- a/packages/ack_json_schema_builder/test/to_json_schema_builder_test.dart +++ b/packages/ack_json_schema_builder/test/to_json_schema_builder_test.dart @@ -303,31 +303,28 @@ void main() { expect(result.value, isNot(contains('formatMaximum'))); }); - test( - 'codec overrides are applied (description + nullable)', - () { - final schema = Ack.date().describe('Birth date').nullable(); + test('codec overrides are applied (description + nullable)', () { + final schema = Ack.date().describe('Birth date').nullable(); - final result = schema.toJsonSchemaBuilder(); + final result = schema.toJsonSchemaBuilder(); - // Envelope-level metadata: description hoists to the nullable - // anyOf envelope, branches carry the type information. - expect(result.value['description'], 'Birth date'); + // Envelope-level metadata: description hoists to the nullable + // anyOf envelope, branches carry the type information. + expect(result.value['description'], 'Birth date'); - final anyOf = (result.value['anyOf'] as List) - .map(_schemaFrom) - .toList(growable: false); + final anyOf = (result.value['anyOf'] as List) + .map(_schemaFrom) + .toList(growable: false); - // First branch carries the date format (no inner description per - // the Zod v4 hoist convention). - final dateBranch = anyOf.first; - expect(dateBranch.value['format'], 'date'); + // First branch carries the date format (no inner description per + // the Zod v4 hoist convention). + final dateBranch = anyOf.first; + expect(dateBranch.value['format'], 'date'); - // Second branch represents nullability. - final nullBranch = anyOf.last; - expect(nullBranch.value['type'], 'null'); - }, - ); + // Second branch represents nullability. + final nullBranch = anyOf.last; + expect(nullBranch.value['type'], 'null'); + }); }); group('discriminated anyOf composition', () { From 41fbb5a926e59dd590a81f8e097a903673ba9ed9 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 20 May 2026 18:59:03 -0400 Subject: [PATCH 07/53] fix(ack): correct schema export semantics --- docs/api-reference/index.mdx | 6 +- docs/core-concepts/schemas.mdx | 4 +- docs/guides/json-schema-integration.mdx | 6 +- .../src/constraints/datetime_constraint.dart | 18 +-- .../src/schema_model/ack_schema_model.dart | 13 +- .../ack_schema_model_builder.dart | 137 ++++++++---------- .../schemas/discriminated_object_schema.dart | 38 +++-- .../datetime_schema_extensions.dart | 5 +- .../test/json_schema_conformance_test.dart | 17 +++ .../ack_schema_model_builder_test.dart | 40 ++++- .../schema_model/ack_schema_model_test.dart | 18 +++ .../schemas/datetime_validation_test.dart | 65 +++++++++ .../discriminated_object_schema_test.dart | 45 ++++++ 13 files changed, 281 insertions(+), 131 deletions(-) diff --git a/docs/api-reference/index.mdx b/docs/api-reference/index.mdx index 338ac34d..7afb88c3 100644 --- a/docs/api-reference/index.mdx +++ b/docs/api-reference/index.mdx @@ -22,8 +22,8 @@ Entry point for creating schemas. See [Schema Types](../core-concepts/schemas.md - `Ack.enumString(List values)`: Creates a `StringSchema` constrained to the given values. For ad-hoc string lists without a backing Dart enum. - `Ack.anyOf(List schemas)`: Creates an `AnyOfSchema` for union types. -- `Ack.any()`: Creates an `AnySchema` that accepts any non-null value. Chain - `.nullable()` to allow `null`. +- `Ack.any()`: Creates an `AnySchema` that accepts any non-null JSON-safe + value. Chain `.nullable()` to allow `null`. - `Ack.discriminated(...)`: Creates a discriminated union schema. Branches may be plain `ObjectSchema` or transformed schemas whose base is an `ObjectSchema`. The union owns the discriminator: branches normally @@ -299,7 +299,7 @@ Canonical export model for Ack schemas. ### `AnySchema` -Schema that accepts any non-null value without validation. +Schema that accepts any non-null JSON-safe value without validation. - Created using `Ack.any()` - Useful for dynamic payloads or pass-through metadata diff --git a/docs/core-concepts/schemas.mdx b/docs/core-concepts/schemas.mdx index b4d1e9d3..f215f60a 100644 --- a/docs/core-concepts/schemas.mdx +++ b/docs/core-concepts/schemas.mdx @@ -180,12 +180,12 @@ parse/export boundaries. Branch schemas usually omit the discriminator field. ### Any -Accept any non-null value without validation (use sparingly): +Accept any non-null JSON-safe value without validation (use sparingly): ```dart final flexibleSchema = Ack.object({ 'id': Ack.string(), - 'metadata': Ack.any(), // Any non-null value accepted + 'metadata': Ack.any(), // Any non-null JSON-safe value accepted }); ``` diff --git a/docs/guides/json-schema-integration.mdx b/docs/guides/json-schema-integration.mdx index 4aee718b..f63aac98 100644 --- a/docs/guides/json-schema-integration.mdx +++ b/docs/guides/json-schema-integration.mdx @@ -226,9 +226,9 @@ shape should implement that as explicit adapter rendering. - **`additionalProperties`:** `Ack.object(..., additionalProperties: false)` becomes `additionalProperties: false`; `additionalProperties: true` is emitted as the boolean `true`. -- **`Ack.any()`:** Runtime validation accepts arbitrary non-null Dart - objects. JSON-like adapter exports represent only JSON-compatible values - and attach an `ack_any_json_boundary` warning to the `AckSchemaModel`. +- **`Ack.any()`:** Runtime validation accepts non-null JSON-safe values. + JSON-like adapter exports represent those JSON-compatible values and attach + an `ack_any_json_boundary` warning to the `AckSchemaModel`. - **Date/time range constraints:** Draft-7 has no standard `formatMinimum` or `formatMaximum` keywords. ACK validates `.min()` and `.max()` at runtime and records schema-model warnings instead of rendering non-standard keywords. diff --git a/packages/ack/lib/src/constraints/datetime_constraint.dart b/packages/ack/lib/src/constraints/datetime_constraint.dart index 2aca1390..7dc926f9 100644 --- a/packages/ack/lib/src/constraints/datetime_constraint.dart +++ b/packages/ack/lib/src/constraints/datetime_constraint.dart @@ -99,18 +99,12 @@ class DateTimeConstraint extends Constraint } @override - Map toJsonSchema() => - // JSON Schema Draft 2019-09 and later support formatMinimum/formatMaximum - // for validating string formats like dates. - // See: https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.7.3 - switch (type) { - DateTimeComparisonType.min => { - 'formatMinimum': _formatReference(reference, format), - }, - DateTimeComparisonType.max => { - 'formatMaximum': _formatReference(reference, format), - }, - }; + // `formatMinimum`/`formatMaximum` are Draft 2019-09+ extensions that + // Draft-7 consumers do not understand. The model builder surfaces these + // bounds as `datetime_constraint_not_draft7` warnings instead of emitting + // unrecognized keywords; we mirror that policy here so direct callers see + // the same output as the model boundary. + Map toJsonSchema() => const {}; @override bool operator ==(Object other) { diff --git a/packages/ack/lib/src/schema_model/ack_schema_model.dart b/packages/ack/lib/src/schema_model/ack_schema_model.dart index f2a617ba..a7efceca 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model.dart @@ -881,24 +881,13 @@ final class AckObjectSchemaModel extends AckSchemaModel { @override Map toJsonSchema() { - // Exclude properties that carry a default from JSON Schema's `required`: - // a present default means the property is satisfiable without input. - final visibleRequired = required == null - ? null - : [ - for (final key in required!) - if (properties == null || properties![key]?.defaultValue == null) - key, - ]; - return finishTypeJson({ 'type': 'object', if (properties != null) 'properties': properties!.map( (key, value) => MapEntry(key, value.toJsonSchema()), ), - if (visibleRequired != null && visibleRequired.isNotEmpty) - 'required': visibleRequired, + if (required != null && required!.isNotEmpty) 'required': required, if (minProperties != null) 'minProperties': minProperties, if (maxProperties != null) 'maxProperties': maxProperties, if (additionalProperties != null) diff --git a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart index 4a2f7ab0..6fa54432 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart @@ -7,7 +7,11 @@ import '../schemas/schema.dart'; import 'ack_schema_model.dart'; import 'ack_schema_model_warning.dart'; -extension AckSchemaModelExtension on AckSchema { +extension AckSchemaModelExtension< + Boundary extends Object, + Runtime extends Object +> + on AckSchema { AckSchemaModel toSchemaModel() => _build(this); } @@ -19,14 +23,16 @@ AckSchemaModel _build(AckSchema schema) { final extensions = schema is DefaultSchema ? base.extensions : {...base.extensions, 'x-transformed': true}; - var wrapped = _applyConstraints( - base - .withDescription(schema.description ?? base.description) - .withNullable(schema.isNullable || base.nullable) - .withExtensions(extensions), - schema, - boundaryFormat: base.format, - ); + final layered = base + .withDescription(schema.description ?? base.description) + .withNullable(schema.isNullable || base.nullable) + .withExtensions(extensions); + // `DefaultSchema.constraints` is a passthrough to `inner.constraints`, + // which `_build(schema.inner)` already applied. Re-running them here + // would emit duplicate warnings (e.g. datetime range under a default). + var wrapped = schema is DefaultSchema + ? layered + : _applyConstraints(layered, schema); if (schema is DefaultSchema) { final exportDefault = _defaultExportValueOrNull(schema); @@ -122,7 +128,7 @@ AckSchemaModel _object(ObjectSchema schema) { entry.key, () => _build(entry.value), ); - if (!entry.value.isOptional) { + if (_isRequiredObjectProperty(entry.value)) { required.add(entry.key); } } @@ -191,7 +197,7 @@ AckSchemaModel _any(AnySchema schema) { AckSchemaModelWarning( code: 'ack_any_json_boundary', message: - 'Ack.any() accepts arbitrary non-null Dart objects at runtime, but JSON-like adapters can only represent JSON-compatible values.', + 'Ack.any() accepts non-null JSON-safe values at runtime, matching the JSON-compatible values adapters can represent.', ), ], ); @@ -228,19 +234,11 @@ AckSchemaModel _discriminated(DiscriminatedObjectSchema schema) { ); } -AckSchemaModel _applyConstraints( - AckSchemaModel model, - AckSchema schema, { - String? boundaryFormat, -}) { +AckSchemaModel _applyConstraints(AckSchemaModel model, AckSchema schema) { var next = model; for (final constraint in schema.constraints) { if (constraint is DateTimeConstraint) { - next = _applyDateTimeConstraint( - next, - constraint, - boundaryFormat: boundaryFormat ?? next.format, - ); + next = _applyDateTimeConstraint(next, constraint); continue; } @@ -255,14 +253,13 @@ AckSchemaModel _applyConstraints( AckSchemaModel _applyDateTimeConstraint( AckSchemaModel model, - DateTimeConstraint constraint, { - required String? boundaryFormat, -}) { - final formatted = switch (boundaryFormat) { - 'date' => _dateOnly(constraint.reference), - 'date-time' => constraint.reference.toIso8601String(), - _ => constraint.reference.toIso8601String(), - }; + DateTimeConstraint constraint, +) { + final boundaryFormat = _dateTimeJsonFormat(constraint.format); + final formatted = _formatDateTimeReference( + constraint.reference, + constraint.format, + ); return model.withWarnings([ ...model.warnings, @@ -273,7 +270,7 @@ AckSchemaModel _applyDateTimeConstraint( context: { 'constraint': constraint.type.name, 'reference': formatted, - if (boundaryFormat != null) 'format': boundaryFormat, + 'format': boundaryFormat, }, ), ]); @@ -285,59 +282,49 @@ AckSchemaModel _applyDateTimeConstraint( /// transformations are applied, then verifies the result is JSON-safe before /// returning it. Returns `null` when no JSON-safe representation is reachable. Object? _defaultExportValueOrNull(DefaultSchema schema) { - final defaultValue = schema.defaultValue; - if (defaultValue is Enum) return defaultValue.name; - - // Mirror DefaultSchema's runtime guard so defaults the parse path would - // reject (mutable collections that cannot be cloned to the declared - // Runtime type) are not surfaced via JSON Schema either. We only veto - // when the runtime path itself fails — constraint violations on the - // default value (e.g. min/max) are kept so consumers still see the - // declared default. - if (_defaultRejectedAsUncloneableCollection(schema)) return null; - - // Try encoding through the inner schema (handles codec transformations). + final parsed = schema.safeParse(null); + if (parsed.isFail) return null; + + final defaultValue = parsed.getOrNull(); + if (defaultValue == null) return null; + final encoded = schema.inner.safeEncode(defaultValue); - if (encoded.isOk) { - final encodedValue = encoded.getOrNull(); - if (encodedValue != null) { - try { - return jsonDecode(jsonEncode(encodedValue)); - } catch (_) { - // fall through to runtime fallback - } - } - } + if (encoded.isFail) return null; - if (defaultValue is String || - defaultValue is num || - defaultValue is bool || - defaultValue is List || - defaultValue is Map) { - try { - return jsonDecode(jsonEncode(defaultValue)); - } catch (_) { - return null; - } + return _jsonRoundTripOrNull(encoded.getOrNull()); +} + +bool _isRequiredObjectProperty(AckSchema schema) { + if (schema.isOptional) return false; + if (schema is DefaultSchema && schema.safeParse(null).isOk) { + return false; } - return null; + return true; } -bool _defaultRejectedAsUncloneableCollection(DefaultSchema schema) { - final defaultValue = schema.defaultValue; - if (defaultValue is! List && defaultValue is! Map && defaultValue is! Set) { - return false; +Object? _jsonRoundTripOrNull(Object? value) { + if (value == null) return null; + try { + return jsonDecode(jsonEncode(value)); + } catch (_) { + return null; } +} - // Mirror DefaultSchema._validateDefaultWithContext: a collection default - // that cloneDefault cannot widen back to the declared Runtime type leaks - // the original reference. We surface only that specific failure mode so - // unrelated constraint failures (e.g. min/max) still keep the declared - // default in JSON Schema output. - final result = schema.safeParse(null); - if (!result.isFail) return false; - return result.getError().message.contains('could not be cloned safely'); +String _dateTimeJsonFormat(DateTimeConstraintFormat format) => switch (format) { + DateTimeConstraintFormat.date => 'date', + DateTimeConstraintFormat.dateTime => 'date-time', +}; + +String _formatDateTimeReference( + DateTime reference, + DateTimeConstraintFormat format, +) { + return switch (format) { + DateTimeConstraintFormat.date => _dateOnly(reference), + DateTimeConstraintFormat.dateTime => reference.toIso8601String(), + }; } String _dateOnly(DateTime date) { diff --git a/packages/ack/lib/src/schemas/discriminated_object_schema.dart b/packages/ack/lib/src/schemas/discriminated_object_schema.dart index 52decaae..f23d9f77 100644 --- a/packages/ack/lib/src/schemas/discriminated_object_schema.dart +++ b/packages/ack/lib/src/schemas/discriminated_object_schema.dart @@ -169,27 +169,20 @@ final class DiscriminatedObjectSchema ); } + // Route through `effectiveBranch` so branches authored without the + // discriminator property (per PR #107) still validate the literal at parse + // time. The constructor guarantees `selectedSubSchema` unwraps to an + // `ObjectSchema`, so `effectiveBranch` is always callable here. + final effective = effectiveBranch(discValueRaw); + final subSchemaContext = context.createChild( name: 'when $discriminatorKey="$discValueRaw"', - schema: selectedSubSchema, + schema: effective, value: mapValue, pathSegment: '', ); - final baseSubSchema = unwrapDiscriminatedBranchSchema(selectedSubSchema); - if (baseSubSchema is! ObjectSchema) { - return SchemaResult.fail( - SchemaValidationError( - message: 'Discriminated branches must be object-backed schemas', - context: subSchemaContext, - ), - ); - } - - final result = selectedSubSchema.parseWithContext( - mapValue, - subSchemaContext, - ); + final result = effective.parseWithContext(mapValue, subSchemaContext); if (result.isFail) { return SchemaResult.fail(result.getError()); } @@ -227,18 +220,21 @@ final class DiscriminatedObjectSchema if (runtime == null) return SchemaResult.ok(null); final errors = []; - for (final entry in schemas.entries) { - final discValue = entry.key; - final branchSchema = entry.value; + for (final discValue in schemas.keys) { + // Use the effective branch so per-PR-#107 the literal discriminator + // gates branch selection (validate) and the encoded boundary carries + // the discriminator key (encode), even for branches that did not + // declare the property themselves. + final effective = effectiveBranch(discValue); final branchCtx = context.createChild( name: 'when $discriminatorKey="$discValue"', - schema: branchSchema, + schema: effective, value: runtime, pathSegment: '', operation: SchemaOperation.encode, ); try { - final branchValidation = branchSchema.validateRuntimeWithContext( + final branchValidation = effective.validateRuntimeWithContext( runtime, branchCtx, ); @@ -246,7 +242,7 @@ final class DiscriminatedObjectSchema errors.add(branchValidation.getError()); continue; } - final encoded = branchSchema.encodeWithContext(runtime, branchCtx); + final encoded = effective.encodeWithContext(runtime, branchCtx); if (encoded.isOk) { final boundary = encoded.getOrNull(); if (boundary != null) { diff --git a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart index fe2939bc..95c292df 100644 --- a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart @@ -1,5 +1,6 @@ import '../../constraints/constraint.dart'; import '../../constraints/datetime_constraint.dart'; +import '../../schema_model/ack_schema_model_builder.dart'; import '../schema.dart'; /// Extensions for `CodecSchema` to add date range @@ -29,7 +30,9 @@ extension DateTimeSchemaExtensions on CodecSchema { DateTimeConstraintFormat _dateTimeConstraintFormat( CodecSchema schema, ) { - return switch (schema.inputSchema.toJsonSchema()['format']) { + final inputSchema = schema.inputSchema as AckSchema; + final model = inputSchema.toSchemaModel(); + return switch (model.format) { 'date' => DateTimeConstraintFormat.date, 'date-time' => DateTimeConstraintFormat.dateTime, _ => DateTimeConstraintFormat.dateTime, diff --git a/packages/ack/test/json_schema_conformance_test.dart b/packages/ack/test/json_schema_conformance_test.dart index 29acfe4a..70bc5462 100644 --- a/packages/ack/test/json_schema_conformance_test.dart +++ b/packages/ack/test/json_schema_conformance_test.dart @@ -726,8 +726,25 @@ Map normalizeZodFixture( } } + void removeInvalidNumericDefault(Map schema) { + final defaultValue = schema['default']; + if (defaultValue is! num) return; + + final minimum = schema['minimum']; + if (minimum is num && defaultValue < minimum) { + schema.remove('default'); + return; + } + + final maximum = schema['maximum']; + if (maximum is num && defaultValue > maximum) { + schema.remove('default'); + } + } + // Remove bounds from root schema removeSafeBounds(normalized); + removeInvalidNumericDefault(normalized); if (normalized.isEmpty) { return _canonicalAnySchema(normalized); diff --git a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart index cc164d2e..f87f334c 100644 --- a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart +++ b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart @@ -27,7 +27,7 @@ void main() { 'member', ]); expect(object.properties!['role']!.defaultValue, 'admin'); - expect(object.required, ['name', 'role']); + expect(object.required, isNull); expect(object.propertyOrdering, ['name', 'role']); }); @@ -37,6 +37,42 @@ void main() { expect(model.toJsonSchema(), {'type': 'string', 'default': 'draft'}); }); + test('omits defaults that cannot be encoded through wrapped schema', () { + final transformed = Ack.string() + .transform((value) => int.parse(value)) + .withDefault(7); + final constrained = Ack.integer().min(10).withDefault(5); + final invalidEnum = Ack.enumValues([ + _Role.admin, + ]).withDefault(_Role.member); + + expect(transformed.toJsonSchema(), isNot(contains('default'))); + expect(constrained.toJsonSchema(), isNot(contains('default'))); + expect(invalidEnum.toJsonSchema(), isNot(contains('default'))); + }); + + test('object required fields follow parse-valid defaults', () { + final schema = Ack.object({ + 'createdAt': Ack.instance().withDefault(DateTime(2026, 1, 1)), + 'age': Ack.integer().min(10).withDefault(5), + }); + + final model = schema.toSchemaModel() as AckObjectSchemaModel; + final json = model.toJsonSchema(); + final properties = json['properties'] as Map; + + expect(model.required, ['age']); + expect(json['required'], ['age']); + expect( + properties['createdAt'] as Map, + isNot(contains('default')), + ); + expect( + properties['age'] as Map, + isNot(contains('default')), + ); + }); + test('renders direct JSON Schema through the schema model', () { void expectDirectMatchesModel(AnyAckSchema schema) { expect( @@ -219,7 +255,7 @@ void main() { expect(model, isA()); expect((model as AckAnyOfSchemaModel).schemas, isNotEmpty); expect(model.warnings, hasLength(1)); - expect(model.warnings.single.message, contains('JSON-compatible values')); + expect(model.warnings.single.message, contains('JSON-safe values')); }); test('applies constraints to all model-producing schema kinds', () { diff --git a/packages/ack/test/schema_model/ack_schema_model_test.dart b/packages/ack/test/schema_model/ack_schema_model_test.dart index 39a31672..f0d0ecb0 100644 --- a/packages/ack/test/schema_model/ack_schema_model_test.dart +++ b/packages/ack/test/schema_model/ack_schema_model_test.dart @@ -76,6 +76,24 @@ void main() { }); }); + test( + 'renders explicit object required fields even with property default', + () { + const model = AckObjectSchemaModel( + properties: {'name': AckStringSchemaModel(defaultValue: 'guest')}, + required: ['name'], + ); + + expect(model.toJsonSchema(), { + 'type': 'object', + 'properties': { + 'name': {'type': 'string', 'default': 'guest'}, + }, + 'required': ['name'], + }); + }, + ); + test('renders allOf directly for adapter tests', () { const model = AckAllOfSchemaModel( schemas: [ diff --git a/packages/ack/test/schemas/datetime_validation_test.dart b/packages/ack/test/schemas/datetime_validation_test.dart index 546ce82e..25921c1b 100644 --- a/packages/ack/test/schemas/datetime_validation_test.dart +++ b/packages/ack/test/schemas/datetime_validation_test.dart @@ -337,6 +337,71 @@ void main() { everyElement('datetime_constraint_not_draft7'), ); }); + + test('default-wrapped date constraint emits warning once, not twice', () { + final schema = Ack.date() + .min(DateTime(2026, 1, 1)) + .withDefault(DateTime(2026, 6, 1)); + final model = schema.toSchemaModel(); + + expect(model.warnings, hasLength(1)); + expect(model.warnings.single.code, 'datetime_constraint_not_draft7'); + }); + + test('nullable custom date codec keeps date constraint format', () { + final schema = Ack.string() + .date() + .nullable() + .codec( + decode: DateTime.parse, + encode: (value) => + '${value.year.toString().padLeft(4, '0')}-' + '${value.month.toString().padLeft(2, '0')}-' + '${value.day.toString().padLeft(2, '0')}', + ) + .min(DateTime(2026, 1, 1)); + final model = schema.toSchemaModel(); + + expect(schema.safeParse('2026-01-02').isOk, isTrue); + expect(model.warnings.single.context, { + 'constraint': 'min', + 'reference': '2026-01-01', + 'format': 'date', + }); + }); + + test( + 'nullable custom datetime codec keeps date-time constraint format', + () { + final schema = Ack.string() + .datetime() + .nullable() + .codec( + decode: DateTime.parse, + encode: (value) => value.toIso8601String(), + ) + .min(DateTime.utc(2026, 1, 1)); + final model = schema.toSchemaModel(); + + expect(schema.safeParse('2026-01-02T00:00:00Z').isOk, isTrue); + expect(model.warnings.single.context, { + 'constraint': 'min', + 'reference': '2026-01-01T00:00:00.000Z', + 'format': 'date-time', + }); + }, + ); + + test('DateTimeConstraint.toJsonSchema omits non-Draft-7 keys', () { + expect( + DateTimeConstraint.min(DateTime(2026, 1, 1)).toJsonSchema(), + isEmpty, + ); + expect( + DateTimeConstraint.max(DateTime(2026, 12, 31)).toJsonSchema(), + isEmpty, + ); + }); }); group('Real-World Use Cases', () { diff --git a/packages/ack/test/schemas/discriminated_object_schema_test.dart b/packages/ack/test/schemas/discriminated_object_schema_test.dart index 03cff380..410cfb68 100644 --- a/packages/ack/test/schemas/discriminated_object_schema_test.dart +++ b/packages/ack/test/schemas/discriminated_object_schema_test.dart @@ -59,6 +59,51 @@ void main() { }); }); + group('Union-owned discriminator (PR #107)', () { + // Branches without the discriminator property are valid; the union + // synthesizes the literal via `effectiveBranch` for parse and encode. + late DiscriminatedObjectSchema unionOwnedSchema; + + setUp(() { + unionOwnedSchema = Ack.discriminated>( + discriminatorKey: 'type', + schemas: { + 'cat': Ack.object({'meow': Ack.boolean()}), + 'dog': Ack.object({'bark': Ack.boolean()}), + }, + ); + }); + + test('parses a branch whose schema omits the discriminator', () { + final result = unionOwnedSchema.safeParse({ + 'type': 'cat', + 'meow': true, + }); + + expect(result.isOk, isTrue); + expect(result.getOrThrow(), {'type': 'cat', 'meow': true}); + }); + + test('encodes a branch whose schema omits the discriminator', () { + final result = unionOwnedSchema.safeEncode({ + 'type': 'dog', + 'bark': false, + }); + + expect(result.isOk, isTrue); + expect(result.getOrThrow(), {'type': 'dog', 'bark': false}); + }); + + test('parse against the wrong branch fails on the literal', () { + final result = unionOwnedSchema.safeParse({ + 'type': 'cat', + 'bark': true, + }); + + expect(result.isFail, isTrue); + }); + }); + group('Constructor validation', () { test('rejects an empty discriminator key', () { expect( From c0acfce9246cbcd4498b56f4ec4fa493ce47210f Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 20 May 2026 20:23:13 -0400 Subject: [PATCH 08/53] test(example): align enum parsing with typed codecs --- example/test/enum_literal_types_test.dart | 41 ++++++++++++----------- example/test/primitive_types_test.dart | 12 +++++-- 2 files changed, 32 insertions(+), 21 deletions(-) diff --git a/example/test/enum_literal_types_test.dart b/example/test/enum_literal_types_test.dart index 848e858f..5daa5686 100644 --- a/example/test/enum_literal_types_test.dart +++ b/example/test/enum_literal_types_test.dart @@ -72,7 +72,7 @@ void main() { group('EnumValues Schema (via safeParse)', () { test('userRoleSchema validates enum values', () { - final result = userRoleSchema.safeParse(UserRole.admin); + final result = userRoleSchema.safeParse('admin'); expect(result.isOk, true); final role = result.getOrNull(); @@ -82,13 +82,12 @@ void main() { }); test('userRoleSchema validates all enum values', () { - expect(userRoleSchema.safeParse(UserRole.admin).isOk, true); - expect(userRoleSchema.safeParse(UserRole.user).isOk, true); - expect(userRoleSchema.safeParse(UserRole.guest).isOk, true); + expect(userRoleSchema.safeParse('admin').isOk, true); + expect(userRoleSchema.safeParse('user').isOk, true); + expect(userRoleSchema.safeParse('guest').isOk, true); }); - test('userRoleSchema accepts string representation', () { - // EnumSchema can parse from string name + test('userRoleSchema parses string boundary names', () { final result = userRoleSchema.safeParse('admin'); expect(result.isOk, true); final role = result.getOrNull(); @@ -96,16 +95,20 @@ void main() { expect(role?.name, 'admin'); }); - test('userRoleSchema accepts index number', () { - // EnumSchema can parse from index + test('userRoleSchema rejects index numbers', () { final result = userRoleSchema.safeParse(0); + expect(result.isFail, true); + }); + + test('userRoleSchema encodes enum runtime values', () { + final result = userRoleSchema.safeEncode(UserRole.admin); + expect(result.isOk, true); - final role = result.getOrNull(); - expect(role, UserRole.admin); + expect(result.getOrNull(), 'admin'); }); test('userRoleSchema supports pattern matching', () { - final role = userRoleSchema.parse(UserRole.admin)!; + final role = userRoleSchema.parse('admin')!; final description = switch (role) { UserRole.admin => 'Administrator', @@ -117,18 +120,18 @@ void main() { }); test('userRoleSchema comparison works', () { - final role1 = userRoleSchema.parse(UserRole.admin); + final role1 = userRoleSchema.parse('admin'); final role2 = userRoleSchema.parse('admin'); - final role3 = userRoleSchema.parse(0); + final encoded = userRoleSchema.encode(UserRole.admin); expect(role1 == role2, true); - expect(role1 == role3, true); expect(role1 == UserRole.admin, true); + expect(encoded, 'admin'); }); test('Multiple enum types can coexist', () { - final role = userRoleSchema.parse(UserRole.admin)!; - final status = statusEnumSchema.parse(Status.active)!; + final role = userRoleSchema.parse('admin')!; + final status = statusEnumSchema.parse('active')!; expect(role, isA()); expect(status, isA()); @@ -137,9 +140,9 @@ void main() { }); test('statusEnumSchema works with all Status values', () { - final active = statusEnumSchema.parse(Status.active); + final active = statusEnumSchema.parse('active'); final inactive = statusEnumSchema.parse('inactive'); - final pending = statusEnumSchema.parse(2); // index + final pending = statusEnumSchema.parse('pending'); expect(active, Status.active); expect(inactive, Status.inactive); @@ -176,7 +179,7 @@ void main() { }); test('defaultedEnumSchema accepts valid value', () { - final result = defaultedEnumSchema.safeParse(UserRole.admin); + final result = defaultedEnumSchema.safeParse('admin'); expect(result.isOk, true); expect(result.getOrNull(), UserRole.admin); }); diff --git a/example/test/primitive_types_test.dart b/example/test/primitive_types_test.dart index a68cd53a..7cbe683b 100644 --- a/example/test/primitive_types_test.dart +++ b/example/test/primitive_types_test.dart @@ -121,21 +121,29 @@ void main() { group('EnumValues Schema', () { test('userRoleSchema validates and returns enum value', () { - final result = userRoleSchema.safeParse(UserRole.admin); + final result = userRoleSchema.safeParse('admin'); expect(result.isOk, true); final role = result.getOrNull(); expect(role, isA()); expect(role, UserRole.admin); + + final encoded = userRoleSchema.safeEncode(UserRole.admin); + expect(encoded.isOk, true); + expect(encoded.getOrNull(), 'admin'); }); test('statusEnumSchema validates and returns Status enum', () { - final result = statusEnumSchema.safeParse(Status.active); + final result = statusEnumSchema.safeParse('active'); expect(result.isOk, true); final status = result.getOrNull(); expect(status, isA()); expect(status, Status.active); + + final encoded = statusEnumSchema.safeEncode(Status.active); + expect(encoded.isOk, true); + expect(encoded.getOrNull(), 'active'); }); }); From 197ac6a2cfd356ac52f9043c1623b13ff3b6106c Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 21 May 2026 12:52:01 -0400 Subject: [PATCH 09/53] refactor(ack): simplify datetime constraint routing --- packages/ack/lib/ack.dart | 1 - .../src/constraints/datetime_constraint.dart | 151 +++++++++--------- .../ack_schema_model_builder.dart | 34 +--- .../datetime_schema_extensions.dart | 44 +++-- .../constraints/constraint_equality_test.dart | 16 +- .../schemas/datetime_validation_test.dart | 23 +-- 6 files changed, 127 insertions(+), 142 deletions(-) diff --git a/packages/ack/lib/ack.dart b/packages/ack/lib/ack.dart index 4b9a058b..7122c1dc 100644 --- a/packages/ack/lib/ack.dart +++ b/packages/ack/lib/ack.dart @@ -10,7 +10,6 @@ export 'src/ack.dart'; export 'src/common_types.dart' show JsonMap; // Constraints export 'src/constraints/constraint.dart'; -export 'src/constraints/datetime_constraint.dart'; export 'src/constraints/duration_constraint.dart'; // Context export 'src/context.dart'; diff --git a/packages/ack/lib/src/constraints/datetime_constraint.dart b/packages/ack/lib/src/constraints/datetime_constraint.dart index 7dc926f9..714155f8 100644 --- a/packages/ack/lib/src/constraints/datetime_constraint.dart +++ b/packages/ack/lib/src/constraints/datetime_constraint.dart @@ -1,11 +1,5 @@ import 'constraint.dart'; -/// Type of date/time comparison operation to perform. -enum DateTimeComparisonType { min, max } - -/// Boundary format used when serializing date/time JSON Schema constraints. -enum DateTimeConstraintFormat { date, dateTime } - /// A constraint for validating DateTime values against minimum and maximum bounds. /// /// This constraint is specifically designed for DateTime validation and provides @@ -15,89 +9,95 @@ enum DateTimeConstraintFormat { date, dateTime } /// [.min()] or [.max()] constraints. class DateTimeConstraint extends Constraint with Validator, JsonSchemaSpec { - final DateTimeComparisonType type; final DateTime reference; - final DateTimeConstraintFormat format; + final bool _isMinimum; + + /// The JSON Schema format associated with the boundary schema. + /// + /// Used by schema-model builders for warnings because Draft-7 cannot emit + /// standard range keywords for date/date-time formats. + final String jsonSchemaFormat; + + /// The reference value rendered in the boundary schema's format. + final String formattedReference; const DateTimeConstraint._({ - required this.type, required this.reference, - required this.format, + required bool isMinimum, + required this.jsonSchemaFormat, + required this.formattedReference, required super.constraintKey, required super.description, - }); + }) : _isMinimum = isMinimum; - /// Creates a constraint that validates the DateTime is on or after [date] (inclusive). - /// - /// Example: - /// ```dart - /// final constraint = DateTimeConstraint.min(DateTime(2000, 1, 1)); - /// constraint.validate(DateTime(2000, 1, 1)); // ✓ Valid (inclusive) - /// constraint.validate(DateTime(2005, 6, 15)); // ✓ Valid - /// constraint.validate(DateTime(1999, 12, 31)); // ✗ Invalid - /// ``` - factory DateTimeConstraint.min( - DateTime date, { - DateTimeConstraintFormat format = DateTimeConstraintFormat.dateTime, - }) { - return DateTimeConstraint._( - type: DateTimeComparisonType.min, - reference: date, - format: format, - constraintKey: 'datetime_min', - description: 'Must be on or after ${_formatReference(date, format)}', + /// Creates a date-formatted minimum constraint for `Ack.date()`. + factory DateTimeConstraint.minDate(DateTime date) { + return DateTimeConstraint._range(date, isMinimum: true, format: 'date'); + } + + /// Creates a date-time-formatted minimum constraint for `Ack.datetime()`. + factory DateTimeConstraint.minDateTime(DateTime date) { + return DateTimeConstraint._range( + date, + isMinimum: true, + format: 'date-time', ); } - /// Creates a constraint that validates the DateTime is on or before [date] (inclusive). - /// - /// Example: - /// ```dart - /// final constraint = DateTimeConstraint.max(DateTime(2025, 12, 31)); - /// constraint.validate(DateTime(2025, 12, 31)); // ✓ Valid (inclusive) - /// constraint.validate(DateTime(2020, 1, 1)); // ✓ Valid - /// constraint.validate(DateTime(2026, 1, 1)); // ✗ Invalid - /// ``` - factory DateTimeConstraint.max( + /// Creates a date-formatted maximum constraint for `Ack.date()`. + factory DateTimeConstraint.maxDate(DateTime date) { + return DateTimeConstraint._range(date, isMinimum: false, format: 'date'); + } + + /// Creates a date-time-formatted maximum constraint for `Ack.datetime()`. + factory DateTimeConstraint.maxDateTime(DateTime date) { + return DateTimeConstraint._range( + date, + isMinimum: false, + format: 'date-time', + ); + } + + factory DateTimeConstraint._range( DateTime date, { - DateTimeConstraintFormat format = DateTimeConstraintFormat.dateTime, + required bool isMinimum, + required String format, }) { + final formattedReference = format == 'date' + ? _dateOnly(date) + : date.toIso8601String(); + final comparison = isMinimum ? 'on or after' : 'on or before'; + return DateTimeConstraint._( - type: DateTimeComparisonType.max, reference: date, - format: format, - constraintKey: 'datetime_max', - description: 'Must be on or before ${_formatReference(date, format)}', + isMinimum: isMinimum, + jsonSchemaFormat: format, + formattedReference: formattedReference, + constraintKey: isMinimum ? 'datetime_min' : 'datetime_max', + description: 'Must be $comparison $formattedReference', ); } @override - bool isValid(DateTime value) => switch (type) { - DateTimeComparisonType.min => !value.isBefore( - reference, - ), // >= (on or after) - DateTimeComparisonType.max => !value.isAfter( - reference, - ), // <= (on or before) - }; + bool isValid(DateTime value) => + _isMinimum ? !value.isBefore(reference) : !value.isAfter(reference); @override - String buildMessage(DateTime value) => switch (type) { - DateTimeComparisonType.min => - 'Date must be on or after ${_formatReference(reference, format)}, got ${value.toIso8601String()}', - DateTimeComparisonType.max => - 'Date must be on or before ${_formatReference(reference, format)}, got ${value.toIso8601String()}', - }; + String buildMessage(DateTime value) => + 'Date must be ${_isMinimum ? 'on or after' : 'on or before'} ' + '$formattedReference, got ${_formatValue(value)}'; @override Map buildContext(DateTime value) { return { - 'value': value.toIso8601String(), - 'reference': reference.toIso8601String(), - 'comparisonType': type.name, + 'value': _formatValue(value), + 'reference': formattedReference, + 'comparisonType': comparisonType, }; } + String get comparisonType => _isMinimum ? 'min' : 'max'; + @override // `formatMinimum`/`formatMaximum` are Draft 2019-09+ extensions that // Draft-7 consumers do not understand. The model builder surfaces these @@ -113,9 +113,10 @@ class DateTimeConstraint extends Constraint if (runtimeType != other.runtimeType) return false; return constraintKey == other.constraintKey && description == other.description && - type == other.type && + _isMinimum == other._isMinimum && reference == other.reference && - format == other.format; + jsonSchemaFormat == other.jsonSchemaFormat && + formattedReference == other.formattedReference; } @override @@ -123,18 +124,20 @@ class DateTimeConstraint extends Constraint runtimeType, constraintKey, description, - type, + _isMinimum, reference, - format, + jsonSchemaFormat, + formattedReference, ); + + String _formatValue(DateTime value) { + if (jsonSchemaFormat == 'date') return _dateOnly(value); + return value.toIso8601String(); + } } -String _formatReference(DateTime reference, DateTimeConstraintFormat format) { - return switch (format) { - DateTimeConstraintFormat.date => - '${reference.year.toString().padLeft(4, '0')}-' - '${reference.month.toString().padLeft(2, '0')}-' - '${reference.day.toString().padLeft(2, '0')}', - DateTimeConstraintFormat.dateTime => reference.toIso8601String(), - }; +String _dateOnly(DateTime reference) { + return '${reference.year.toString().padLeft(4, '0')}-' + '${reference.month.toString().padLeft(2, '0')}-' + '${reference.day.toString().padLeft(2, '0')}'; } diff --git a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart index 6fa54432..9e0fa475 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart @@ -255,12 +255,6 @@ AckSchemaModel _applyDateTimeConstraint( AckSchemaModel model, DateTimeConstraint constraint, ) { - final boundaryFormat = _dateTimeJsonFormat(constraint.format); - final formatted = _formatDateTimeReference( - constraint.reference, - constraint.format, - ); - return model.withWarnings([ ...model.warnings, AckSchemaModelWarning( @@ -268,9 +262,9 @@ AckSchemaModel _applyDateTimeConstraint( message: 'DateTime range constraints are not emitted because JSON Schema Draft-7 has no standard format range keywords.', context: { - 'constraint': constraint.type.name, - 'reference': formatted, - 'format': boundaryFormat, + 'constraint': constraint.comparisonType, + 'reference': constraint.formattedReference, + 'format': constraint.jsonSchemaFormat, }, ), ]); @@ -311,25 +305,3 @@ Object? _jsonRoundTripOrNull(Object? value) { return null; } } - -String _dateTimeJsonFormat(DateTimeConstraintFormat format) => switch (format) { - DateTimeConstraintFormat.date => 'date', - DateTimeConstraintFormat.dateTime => 'date-time', -}; - -String _formatDateTimeReference( - DateTime reference, - DateTimeConstraintFormat format, -) { - return switch (format) { - DateTimeConstraintFormat.date => _dateOnly(reference), - DateTimeConstraintFormat.dateTime => reference.toIso8601String(), - }; -} - -String _dateOnly(DateTime date) { - final year = date.year.toString().padLeft(4, '0'); - final month = date.month.toString().padLeft(2, '0'); - final day = date.day.toString().padLeft(2, '0'); - return '$year-$month-$day'; -} diff --git a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart index 95c292df..39a63896 100644 --- a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart @@ -8,16 +8,12 @@ import '../schema.dart'; extension DateTimeSchemaExtensions on CodecSchema { /// Constrains the date to be on or after [minDate] (inclusive). CodecSchema min(DateTime minDate) { - final format = _dateTimeConstraintFormat(this); - _validateDateTimeReference(minDate, format); - return _addConstraint(DateTimeConstraint.min(minDate, format: format)); + return _addConstraint(_dateTimeConstraint(this, minDate, isMinimum: true)); } /// Constrains the date to be on or before [maxDate] (inclusive). CodecSchema max(DateTime maxDate) { - final format = _dateTimeConstraintFormat(this); - _validateDateTimeReference(maxDate, format); - return _addConstraint(DateTimeConstraint.max(maxDate, format: format)); + return _addConstraint(_dateTimeConstraint(this, maxDate, isMinimum: false)); } CodecSchema _addConstraint( @@ -27,24 +23,36 @@ extension DateTimeSchemaExtensions on CodecSchema { } } -DateTimeConstraintFormat _dateTimeConstraintFormat( +DateTimeConstraint _dateTimeConstraint( CodecSchema schema, -) { + DateTime reference, { + required bool isMinimum, +}) { + final format = _dateTimeJsonFormat(schema); + _validateDateTimeReference(reference, format); + + return switch ((format, isMinimum)) { + ('date', true) => DateTimeConstraint.minDate(reference), + ('date', false) => DateTimeConstraint.maxDate(reference), + ('date-time', true) => DateTimeConstraint.minDateTime(reference), + ('date-time', false) => DateTimeConstraint.maxDateTime(reference), + _ => throw StateError('Unsupported DateTime JSON Schema format: $format'), + }; +} + +String _dateTimeJsonFormat(CodecSchema schema) { final inputSchema = schema.inputSchema as AckSchema; final model = inputSchema.toSchemaModel(); return switch (model.format) { - 'date' => DateTimeConstraintFormat.date, - 'date-time' => DateTimeConstraintFormat.dateTime, - _ => DateTimeConstraintFormat.dateTime, + 'date' => 'date', + 'date-time' => 'date-time', + _ => 'date-time', }; } -void _validateDateTimeReference( - DateTime reference, - DateTimeConstraintFormat format, -) { +void _validateDateTimeReference(DateTime reference, String format) { switch (format) { - case DateTimeConstraintFormat.date: + case 'date': if (reference.isUtc || reference.hour != 0 || reference.minute != 0 || @@ -57,7 +65,7 @@ void _validateDateTimeReference( 'Ack.date() constraints require a local DateTime at midnight.', ); } - case DateTimeConstraintFormat.dateTime: + case 'date-time': if (!reference.isUtc) { throw ArgumentError.value( reference, @@ -65,5 +73,7 @@ void _validateDateTimeReference( 'Ack.datetime() constraints require a UTC DateTime.', ); } + default: + throw StateError('Unsupported DateTime JSON Schema format: $format'); } } diff --git a/packages/ack/test/constraints/constraint_equality_test.dart b/packages/ack/test/constraints/constraint_equality_test.dart index baaa74e5..2b5a95f1 100644 --- a/packages/ack/test/constraints/constraint_equality_test.dart +++ b/packages/ack/test/constraints/constraint_equality_test.dart @@ -123,30 +123,30 @@ void main() { group('DateTimeConstraint', () { test('equal min are equal', () { final date = DateTime(2023, 1, 1); - final a = DateTimeConstraint.min(date); - final b = DateTimeConstraint.min(date); + final a = DateTimeConstraint.minDateTime(date); + final b = DateTimeConstraint.minDateTime(date); expect(a, equals(b)); expect(a.hashCode, equals(b.hashCode)); }); test('equal max are equal', () { final date = DateTime(2023, 12, 31); - final a = DateTimeConstraint.max(date); - final b = DateTimeConstraint.max(date); + final a = DateTimeConstraint.maxDateTime(date); + final b = DateTimeConstraint.maxDateTime(date); expect(a, equals(b)); expect(a.hashCode, equals(b.hashCode)); }); test('different dates are not equal', () { - final a = DateTimeConstraint.min(DateTime(2023, 1, 1)); - final b = DateTimeConstraint.min(DateTime(2024, 1, 1)); + final a = DateTimeConstraint.minDateTime(DateTime(2023, 1, 1)); + final b = DateTimeConstraint.minDateTime(DateTime(2024, 1, 1)); expect(a, isNot(equals(b))); }); test('min and max are not equal', () { final date = DateTime(2023, 1, 1); - final a = DateTimeConstraint.min(date); - final b = DateTimeConstraint.max(date); + final a = DateTimeConstraint.minDateTime(date); + final b = DateTimeConstraint.maxDateTime(date); expect(a, isNot(equals(b))); }); }); diff --git a/packages/ack/test/schemas/datetime_validation_test.dart b/packages/ack/test/schemas/datetime_validation_test.dart index 25921c1b..22cdf8df 100644 --- a/packages/ack/test/schemas/datetime_validation_test.dart +++ b/packages/ack/test/schemas/datetime_validation_test.dart @@ -264,8 +264,8 @@ void main() { final error = result.getError() as SchemaConstraintsError; final context = error.constraints.first.context; expect(context?['comparisonType'], 'min'); - expect(context?['reference'], contains('2025-01-01')); - expect(context?['value'], contains('2024-12-31')); + expect(context?['reference'], '2025-01-01'); + expect(context?['value'], '2024-12-31'); }); test('error message for max constraint is clear', () { @@ -392,15 +392,16 @@ void main() { }, ); - test('DateTimeConstraint.toJsonSchema omits non-Draft-7 keys', () { - expect( - DateTimeConstraint.min(DateTime(2026, 1, 1)).toJsonSchema(), - isEmpty, - ); - expect( - DateTimeConstraint.max(DateTime(2026, 12, 31)).toJsonSchema(), - isEmpty, - ); + test('fluent date-time constraints omit non-Draft-7 keys', () { + final dateSchema = Ack.date().min(DateTime(2026, 1, 1)).toJsonSchema(); + final dateTimeSchema = Ack.datetime() + .max(DateTime.utc(2026, 12, 31)) + .toJsonSchema(); + + expect(dateSchema['format'], 'date'); + expect(dateSchema, isNot(contains('formatMinimum'))); + expect(dateTimeSchema['format'], 'date-time'); + expect(dateTimeSchema, isNot(contains('formatMaximum'))); }); }); From ee53e44b013c0177b480d83e37fbfd55f96648ba Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 21 May 2026 14:04:38 -0400 Subject: [PATCH 10/53] chore: commit workspace changes --- packages/ack/lib/ack.dart | 4 +- .../ack/lib/src/schemas/instance_schema.dart | 15 ++-- packages/ack/lib/src/schemas/schema.dart | 71 ------------------- .../ack/lib/src/schemas/wrapper_schema.dart | 63 +++------------- .../typed_codecs_characterization_test.dart | 4 ++ 5 files changed, 29 insertions(+), 128 deletions(-) diff --git a/packages/ack/lib/ack.dart b/packages/ack/lib/ack.dart index 7122c1dc..760de02b 100644 --- a/packages/ack/lib/ack.dart +++ b/packages/ack/lib/ack.dart @@ -24,7 +24,9 @@ export 'src/schemas/extensions/string_schema_extensions.dart'; // JSON Schema export 'src/json_schema.dart'; // Core schemas -export 'src/schemas/schema.dart'; +// `WrapperSchema` is internal infrastructure; users compose wrappers via +// `withDefault`, `codec`, `transform`, etc., not by implementing the mixin. +export 'src/schemas/schema.dart' hide WrapperSchema; export 'src/validation/ack_exception.dart'; export 'src/validation/schema_error.dart'; // Validation results diff --git a/packages/ack/lib/src/schemas/instance_schema.dart b/packages/ack/lib/src/schemas/instance_schema.dart index cc0e952e..4ab6edae 100644 --- a/packages/ack/lib/src/schemas/instance_schema.dart +++ b/packages/ack/lib/src/schemas/instance_schema.dart @@ -1,9 +1,16 @@ part of 'schema.dart'; -/// Schema that accepts a specific runtime [T] instance, with [T] as both -/// boundary and runtime type. Used as the default `output` schema of a -/// [CodecSchema] so codec authors can attach typed refinements (e.g. -/// requiring a `DateTime` to be UTC) on the runtime side. +/// Runtime-side schema that validates a Dart value is an instance of [T]. +/// +/// Primarily intended as the `output` schema for a [CodecSchema]: it gates +/// decoded runtime values by type and is where codec authors attach runtime +/// invariants via [refine] (e.g. requiring a `DateTime` to be UTC). +/// +/// This is **not** a JSON-boundary schema for [T]. When exported directly, the +/// schema model only approximates it across JSON-compatible branches and +/// surfaces the `ack_instance_json_boundary` warning. For wire-format +/// validation, pair it with a codec (`schema.codec(...)`) or use a boundary +/// schema such as `Ack.string()` / `Ack.object(...)` instead. @immutable final class InstanceSchema extends AckSchema with FluentSchema> { diff --git a/packages/ack/lib/src/schemas/schema.dart b/packages/ack/lib/src/schemas/schema.dart index 07b9038a..beac529a 100644 --- a/packages/ack/lib/src/schemas/schema.dart +++ b/packages/ack/lib/src/schemas/schema.dart @@ -86,11 +86,6 @@ abstract class AckSchema { }) : _constraints = constraints, _refinements = refinements; - /// Utility method to get the schema type of any value. - static SchemaType getSchemaType(Object? value) { - return SchemaType.of(value); - } - // --------------------------------------------------------------------------- // Subclass-facing internal lifecycle // --------------------------------------------------------------------------- @@ -173,70 +168,6 @@ abstract class AckSchema { return SchemaResult.ok(value); } - /// Merges constraint JSON schemas into a base schema. - @protected - Map mergeConstraintSchemas(Map baseSchema) { - final constraintSchemas = >[]; - for (final constraint in _constraints) { - if (constraint is JsonSchemaSpec) { - constraintSchemas.add(constraint.toJsonSchema()); - } - } - return constraintSchemas.fold( - baseSchema, - (prev, current) => deepMerge(prev, current), - ); - } - - /// Builds a JSON Schema map with proper nullable handling. - @protected - Map buildJsonSchemaWithNullable({ - required Map typeSchema, - Object? serializedDefault, - }) { - if (isNullable) { - final baseSchema = { - ...typeSchema, - if (description != null) 'description': description, - }; - final mergedSchema = mergeConstraintSchemas(baseSchema); - return { - if (serializedDefault != null) 'default': serializedDefault, - 'anyOf': [ - mergedSchema, - {'type': 'null'}, - ], - }; - } - - final schema = { - ...typeSchema, - if (description != null) 'description': description, - if (serializedDefault != null) 'default': serializedDefault, - }; - - return mergeConstraintSchemas(schema); - } - - /// Wraps a composite (e.g. `anyOf`) JSON Schema in a nullable form when - /// the schema is nullable. Unlike [buildJsonSchemaWithNullable], the inner - /// composite is preserved as-is (constraints are merged into it) and the - /// nullable branch is added at the outer level. Used by [AnyOfSchema] and - /// [DiscriminatedObjectSchema] whose root key is already `anyOf`. - @protected - Map wrapCompositeWithNullable( - Map baseSchema, - ) { - if (!isNullable) return mergeConstraintSchemas(baseSchema); - return { - if (description != null) 'description': description, - 'anyOf': [ - mergeConstraintSchemas(baseSchema), - {'type': 'null'}, - ], - }; - } - /// Helper for schemas whose boundary == runtime: validates the runtime /// value and, if it passes, returns it as the boundary value unchanged. /// Only safe to call when `Boundary` and `Runtime` are the same type. @@ -667,5 +598,3 @@ JsonMap? jsonMapOrNull(Object? value) { return result; } -@Deprecated('Use jsonMapOrNull(...) instead.') -JsonMap? coerceJsonMap(Object? value) => jsonMapOrNull(value); diff --git a/packages/ack/lib/src/schemas/wrapper_schema.dart b/packages/ack/lib/src/schemas/wrapper_schema.dart index 4c508f10..2fa309a0 100644 --- a/packages/ack/lib/src/schemas/wrapper_schema.dart +++ b/packages/ack/lib/src/schemas/wrapper_schema.dart @@ -1,12 +1,17 @@ part of 'schema.dart'; -/// Shared contract for schemas that add runtime behavior around an inner -/// boundary-facing schema. +/// ACK-internal infrastructure for schemas that wrap another boundary-facing +/// schema. /// -/// Wrappers keep their own runtime-side configuration and delegate boundary -/// shape traversal to [inner]. Converters can follow [inner] to recover the -/// encoded JSON shape, then merge wrapper-owned metadata such as description, -/// nullability, defaults, and generated marker fields. +/// Wrappers add runtime behavior (e.g. codecs, defaults) while preserving an +/// inner schema for boundary-shape traversal, schema-model export, and +/// discriminated-branch rewriting. The canonical JSON export path is +/// `AckSchema → AckSchemaModel → JSON`; wrappers do not render JSON directly. +/// +/// Not a public extension point for application code. Consumers should use +/// `Ack.*` factories (`withDefault`, `codec`, `transform`, `model`) instead of +/// implementing this mixin themselves. +@internal mixin WrapperSchema< Boundary extends Object, Runtime extends Object, @@ -114,50 +119,4 @@ mixin WrapperSchema< return withConstraint(effectiveConstraint); } - /// Applies wrapper-owned JSON Schema metadata to an inner boundary schema. - @protected - Map applyWrapperJsonSchemaMetadata( - Map baseSchema, { - Object? serializedDefault, - Map metadata = const {}, - }) { - // Precedence is intentional: inner boundary schema first, generated - // wrapper metadata second, then user-facing wrapper description last. - final branchSchema = mergeConstraintSchemas({ - ...baseSchema, - ...metadata, - if (description != null) 'description': description, - }); - - if (!isNullable || _jsonSchemaHasNullBranch(branchSchema)) { - return { - ...branchSchema, - if (serializedDefault != null) 'default': serializedDefault, - }; - } - - return { - if (description != null) 'description': description, - if (serializedDefault != null) 'default': serializedDefault, - 'anyOf': [ - branchSchema, - {'type': 'null'}, - ], - }; - } -} - -bool _jsonSchemaHasNullBranch(Map schema) { - if (schema['type'] == 'null') return true; - - return _jsonSchemaCompositionHasNullBranch(schema['anyOf']) || - _jsonSchemaCompositionHasNullBranch(schema['oneOf']); -} - -bool _jsonSchemaCompositionHasNullBranch(Object? composition) { - if (composition is! List) return false; - return composition.any( - (branch) => - branch is Map && _jsonSchemaHasNullBranch(branch), - ); } diff --git a/packages/ack/test/typed_codecs_characterization_test.dart b/packages/ack/test/typed_codecs_characterization_test.dart index afc903b7..a16921d8 100644 --- a/packages/ack/test/typed_codecs_characterization_test.dart +++ b/packages/ack/test/typed_codecs_characterization_test.dart @@ -1,4 +1,8 @@ import 'package:ack/ack.dart'; +// `WrapperSchema` is intentionally hidden from the public ack.dart export; +// internal smoke checks below reach into the source path to assert that +// codec/default/transform schemas implement the wrapper mixin. +import 'package:ack/src/schemas/schema.dart' show WrapperSchema; import 'package:test/test.dart'; final class _Event { From 0f4bb4bc073935f77e919ff622af181707e44d8e Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 21 May 2026 14:20:37 -0400 Subject: [PATCH 11/53] refactor(ack): tighten public surface, narrow FluentSchema, drop dead members - Hide AnyAckSchema, Refinement, SchemaOperation from package:ack/ack.dart alongside WrapperSchema; they are internal traversal plumbing and consumers use .refine(...), safeParse, and concrete schema types instead. - Delete dead members: AckSchema.getSchemaType, AckSchemaModel.withTitle, InvalidTypeConstraint.withTypes, and the coerceJsonMap deprecated alias. - Mark CodecSchema.copyWith @internal; it duplicates copyWithRuntimeConfig and exists only to satisfy the wrapper protocol. - Add refine/constrain overrides to FluentSchema so primitive schemas preserve their concrete type through the fluent chain (matches the existing WrapperSchema behavior). Unlocks removal of two redundant `as StringSchema` casts in string_schema_extensions. - Update internal tests to consume now-hidden symbols via the src/ path. --- packages/ack/lib/ack.dart | 6 ++++- .../ack/lib/src/constraints/validators.dart | 8 ------- .../src/schema_model/ack_schema_model.dart | 3 --- .../ack/lib/src/schemas/codec_schema.dart | 4 ++++ .../extensions/string_schema_extensions.dart | 9 ++++--- .../ack/lib/src/schemas/fluent_schema.dart | 24 +++++++++++++++++++ .../constraints/constraint_equality_test.dart | 10 ++------ .../ack_schema_model_builder_test.dart | 1 + .../ack/test/schemas/core_schema_test.dart | 12 ---------- .../typed_codecs_characterization_test.dart | 8 +++---- 10 files changed, 44 insertions(+), 41 deletions(-) diff --git a/packages/ack/lib/ack.dart b/packages/ack/lib/ack.dart index 760de02b..06b66251 100644 --- a/packages/ack/lib/ack.dart +++ b/packages/ack/lib/ack.dart @@ -26,7 +26,11 @@ export 'src/json_schema.dart'; // Core schemas // `WrapperSchema` is internal infrastructure; users compose wrappers via // `withDefault`, `codec`, `transform`, etc., not by implementing the mixin. -export 'src/schemas/schema.dart' hide WrapperSchema; +// `Refinement`, `SchemaOperation`, and `AnyAckSchema` are traversal +// plumbing for subclasses; consumers use `.refine(...)`, `safeParse`, and +// concrete schema types instead. +export 'src/schemas/schema.dart' + hide AnyAckSchema, Refinement, SchemaOperation, WrapperSchema; export 'src/validation/ack_exception.dart'; export 'src/validation/schema_error.dart'; // Validation results diff --git a/packages/ack/lib/src/constraints/validators.dart b/packages/ack/lib/src/constraints/validators.dart index 64453532..a569a3dd 100644 --- a/packages/ack/lib/src/constraints/validators.dart +++ b/packages/ack/lib/src/constraints/validators.dart @@ -33,14 +33,6 @@ class InvalidTypeConstraint extends Constraint description: 'Value must be of type $expectedType.', ); - const InvalidTypeConstraint.withTypes({ - required this.expectedType, - this.actualType, - }) : super( - constraintKey: 'core_invalid_type', - description: 'Value must be of type $expectedType.', - ); - @override bool isValid(Object? value) { if (value == null) return false; diff --git a/packages/ack/lib/src/schema_model/ack_schema_model.dart b/packages/ack/lib/src/schema_model/ack_schema_model.dart index a7efceca..6aecfccd 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model.dart @@ -162,9 +162,6 @@ sealed class AckSchemaModel { @protected AckSchemaModel _rebuildWithCommon(_AckSchemaModelCommon common); - AckSchemaModel withTitle(String? title) => - _rebuildWithCommon(_common.copyWith(title: title)); - AckSchemaModel withDescription(String? description) => _rebuildWithCommon(_common.copyWith(description: description)); diff --git a/packages/ack/lib/src/schemas/codec_schema.dart b/packages/ack/lib/src/schemas/codec_schema.dart index fc0b1403..90b47d36 100644 --- a/packages/ack/lib/src/schemas/codec_schema.dart +++ b/packages/ack/lib/src/schemas/codec_schema.dart @@ -183,6 +183,10 @@ final class CodecSchema } /// Returns a copy of this codec with the supplied runtime config replaced. + /// + /// Prefer the fluent helpers (`nullable()`, `describe()`, `withConstraint(...)`, + /// etc.) over calling this directly; it exists to back the wrapper protocol. + @internal CodecSchema copyWith({ bool? isNullable, bool? isOptional, diff --git a/packages/ack/lib/src/schemas/extensions/string_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/string_schema_extensions.dart index 91cda789..6206abe5 100644 --- a/packages/ack/lib/src/schemas/extensions/string_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/string_schema_extensions.dart @@ -72,16 +72,15 @@ extension StringSchemaExtensions on StringSchema { StringSchema matches(String pattern, {String? example, String? message}) { final constraint = PatternConstraint.regex(pattern, example: example); - return constrain(constraint, message: message) as StringSchema; + return constrain(constraint, message: message); } /// Adds a constraint that the string must contain the given [pattern] somewhere. StringSchema contains(String pattern, {String? example, String? message}) { return constrain( - PatternConstraint.contains(pattern, example: example), - message: message, - ) - as StringSchema; + PatternConstraint.contains(pattern, example: example), + message: message, + ); } /// Adds a constraint that the string must be a valid ISO 8601 date-time. diff --git a/packages/ack/lib/src/schemas/fluent_schema.dart b/packages/ack/lib/src/schemas/fluent_schema.dart index f169418e..73083aa0 100644 --- a/packages/ack/lib/src/schemas/fluent_schema.dart +++ b/packages/ack/lib/src/schemas/fluent_schema.dart @@ -63,4 +63,28 @@ mixin FluentSchema< @override Schema withConstraints(List> newConstraints) => copyWith(constraints: [...constraints, ...newConstraints]); + + /// Adds a custom validation check that runs after all other validations. + @override + Schema refine( + bool Function(Runtime value) validate, { + String message = 'The value did not pass the custom validation.', + }) { + final newRefinement = (validate: validate, message: message); + return copyWith(refinements: [...refinements, newRefinement]); + } + + /// Adds a raw [constraint] to the schema. + @override + Schema constrain(Constraint constraint, {String? message}) { + if (constraint is! Validator) { + throw ArgumentError( + 'Constraint ${constraint.runtimeType} must implement Validator.', + ); + } + final effectiveConstraint = message == null + ? constraint + : _ConstraintMessageOverride(constraint, message); + return withConstraint(effectiveConstraint); + } } diff --git a/packages/ack/test/constraints/constraint_equality_test.dart b/packages/ack/test/constraints/constraint_equality_test.dart index 2b5a95f1..656210c3 100644 --- a/packages/ack/test/constraints/constraint_equality_test.dart +++ b/packages/ack/test/constraints/constraint_equality_test.dart @@ -200,14 +200,8 @@ void main() { }); test('InvalidTypeConstraint equal', () { - final a = InvalidTypeConstraint.withTypes( - expectedType: String, - actualType: int, - ); - final b = InvalidTypeConstraint.withTypes( - expectedType: String, - actualType: int, - ); + final a = InvalidTypeConstraint(expectedType: String, inputValue: 1); + final b = InvalidTypeConstraint(expectedType: String, inputValue: 2); expect(a, equals(b)); expect(a.hashCode, equals(b.hashCode)); }); diff --git a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart index f87f334c..34248e58 100644 --- a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart +++ b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart @@ -1,4 +1,5 @@ import 'package:ack/ack.dart'; +import 'package:ack/src/schemas/schema.dart' show AnyAckSchema; import 'package:test/test.dart'; enum _Role { admin, member } diff --git a/packages/ack/test/schemas/core_schema_test.dart b/packages/ack/test/schemas/core_schema_test.dart index 34afb3ca..bed40dce 100644 --- a/packages/ack/test/schemas/core_schema_test.dart +++ b/packages/ack/test/schemas/core_schema_test.dart @@ -223,17 +223,5 @@ void main() { expect(schema.tryParse('bad'), isNull); }); - test('coerceJsonMap delegates to jsonMapOrNull', () { - final jsonMap = {'name': 'Ada'}; - - // ignore: deprecated_member_use_from_same_package - expect(coerceJsonMap(jsonMap), same(jsonMap)); - - // ignore: deprecated_member_use_from_same_package - expect(coerceJsonMap({'name': 'Ada'}), equals({'name': 'Ada'})); - - // ignore: deprecated_member_use_from_same_package - expect(coerceJsonMap({1: 'Ada'}), isNull); - }); }); } diff --git a/packages/ack/test/typed_codecs_characterization_test.dart b/packages/ack/test/typed_codecs_characterization_test.dart index a16921d8..8146e287 100644 --- a/packages/ack/test/typed_codecs_characterization_test.dart +++ b/packages/ack/test/typed_codecs_characterization_test.dart @@ -1,8 +1,8 @@ import 'package:ack/ack.dart'; -// `WrapperSchema` is intentionally hidden from the public ack.dart export; -// internal smoke checks below reach into the source path to assert that -// codec/default/transform schemas implement the wrapper mixin. -import 'package:ack/src/schemas/schema.dart' show WrapperSchema; +// These symbols are intentionally hidden from the public ack.dart export; +// the internal characterization tests below reach into the source path. +import 'package:ack/src/schemas/schema.dart' + show Refinement, SchemaOperation, WrapperSchema; import 'package:test/test.dart'; final class _Event { From 69d399fa6f6a6d79fbcb315c62b519227c2de2c2 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 21 May 2026 17:03:48 -0400 Subject: [PATCH 12/53] chore: finalize codec implementation updates --- .../ack/lib/src/schemas/codec_schema.dart | 100 ++++-------------- .../datetime_schema_extensions.dart | 3 +- .../extensions/transform_extension_test.dart | 2 +- .../test/schemas/schema_equality_test.dart | 6 -- .../typed_codecs_characterization_test.dart | 5 - 5 files changed, 22 insertions(+), 94 deletions(-) diff --git a/packages/ack/lib/src/schemas/codec_schema.dart b/packages/ack/lib/src/schemas/codec_schema.dart index 90b47d36..3c596a48 100644 --- a/packages/ack/lib/src/schemas/codec_schema.dart +++ b/packages/ack/lib/src/schemas/codec_schema.dart @@ -10,7 +10,7 @@ part of 'schema.dart'; final class CodecSchema extends AckSchema with WrapperSchema> { - final AckSchema inputSchema; + final AckSchema inputSchema; /// The output schema applied to the runtime value after decoding and before /// encoding. @@ -18,22 +18,19 @@ final class CodecSchema final Runtime Function(Object value) _decoder; final Object Function(Runtime value)? _encoder; - final Object _decoderIdentity; CodecSchema._({ required this.inputSchema, required this.outputSchema, required Runtime Function(Object value) decoder, required Object Function(Runtime value)? encoder, - required Object decoderIdentity, super.isNullable, super.isOptional, super.description, super.constraints, super.refinements, }) : _decoder = decoder, - _encoder = encoder, - _decoderIdentity = decoderIdentity; + _encoder = encoder; /// Creates a codec while preserving the input schema's runtime type. static CodecSchema create< @@ -56,7 +53,6 @@ final class CodecSchema outputSchema: outputSchema, decoder: (value) => decoder(value as InputRuntime), encoder: encoder, - decoderIdentity: decoder, isNullable: isNullable, isOptional: isOptional, description: description, @@ -82,13 +78,7 @@ final class CodecSchema return SchemaResult.fail(inputResult.getError()); } - final intermediate = inputResult.getOrNull(); - if (intermediate == null) { - // Defensive: a well-behaved inputSchema does not return Ok(null) for a - // non-null input. Surface the nullability error as a contract violation. - if (isNullable) return SchemaResult.ok(null); - return failNonNullable(context); - } + final intermediate = inputResult.getOrNull()!; final Runtime runtime; try { @@ -124,14 +114,7 @@ final class CodecSchema return SchemaResult.fail(outputResult.getError()); } - final validated = outputResult.getOrNull(); - if (validated == null) { - // Defensive: a well-behaved outputSchema does not return Ok(null) for a - // non-null input. Surface the nullability error as a contract violation. - if (isNullable) return SchemaResult.ok(null); - return failNonNullable(context); - } - + final validated = outputResult.getOrNull()!; return applyConstraintsAndRefinements(validated, context); } @@ -150,8 +133,7 @@ final class CodecSchema final validated = validateRuntimeWithContext(value, context); if (validated.isFail) return SchemaResult.fail(validated.getError()); - final runtime = validated.getOrNull(); - if (runtime == null) return failNonNullableEncode(context); + final runtime = validated.getOrNull()!; final Object intermediate; try { @@ -167,55 +149,16 @@ final class CodecSchema ); } - // Ensure the intermediate matches the input schema's runtime shape before - // encoding to boundary. - final inputValidation = inputSchema.validateRuntimeWithContext( - intermediate, - context, - ); - if (inputValidation.isFail) { - return SchemaResult.fail(inputValidation.getError()); - } - - final validatedInput = inputValidation.getOrNull(); - if (validatedInput == null) return failNonNullableEncode(context); - return inputSchema.encodeWithContext(validatedInput, context); - } - - /// Returns a copy of this codec with the supplied runtime config replaced. - /// - /// Prefer the fluent helpers (`nullable()`, `describe()`, `withConstraint(...)`, - /// etc.) over calling this directly; it exists to back the wrapper protocol. - @internal - CodecSchema copyWith({ - bool? isNullable, - bool? isOptional, - String? description, - List>? constraints, - List>? refinements, - }) { - return CodecSchema._( - inputSchema: inputSchema, - outputSchema: outputSchema, - decoder: _decoder, - encoder: _encoder, - decoderIdentity: _decoderIdentity, - isNullable: isNullable ?? this.isNullable, - isOptional: isOptional ?? this.isOptional, - description: description ?? this.description, - constraints: constraints ?? this.constraints, - refinements: refinements ?? this.refinements, - ); + return inputSchema.encodeWithContext(intermediate, context); } @override CodecSchema copyWithInner(AnyAckSchema newInner) { return CodecSchema._( - inputSchema: newInner as AckSchema, + inputSchema: newInner as AckSchema, outputSchema: outputSchema, decoder: _decoder, encoder: _encoder, - decoderIdentity: _decoderIdentity, isNullable: isNullable, isOptional: isOptional, description: description, @@ -233,12 +176,16 @@ final class CodecSchema List>? constraints, List>? refinements, }) { - return copyWith( - isNullable: isNullable, - isOptional: isOptional, - description: description, - constraints: constraints, - refinements: refinements, + return CodecSchema._( + inputSchema: inputSchema, + outputSchema: outputSchema, + decoder: _decoder, + encoder: _encoder, + isNullable: isNullable ?? this.isNullable, + isOptional: isOptional ?? this.isOptional, + description: description ?? this.description, + constraints: constraints ?? this.constraints, + refinements: refinements ?? this.refinements, ); } @@ -248,17 +195,10 @@ final class CodecSchema if (other is! CodecSchema) return false; return baseFieldsEqual(other) && inputSchema == other.inputSchema && - outputSchema == other.outputSchema && - identical(_decoderIdentity, other._decoderIdentity) && - identical(_encoder, other._encoder); + outputSchema == other.outputSchema; } @override - int get hashCode => Object.hash( - baseFieldsHashCode, - inputSchema, - outputSchema, - _decoderIdentity.hashCode, - _encoder.hashCode, - ); + int get hashCode => + Object.hash(baseFieldsHashCode, inputSchema, outputSchema); } diff --git a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart index 39a63896..54bd427d 100644 --- a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart @@ -41,8 +41,7 @@ DateTimeConstraint _dateTimeConstraint( } String _dateTimeJsonFormat(CodecSchema schema) { - final inputSchema = schema.inputSchema as AckSchema; - final model = inputSchema.toSchemaModel(); + final model = schema.inputSchema.toSchemaModel(); return switch (model.format) { 'date' => 'date', 'date-time' => 'date-time', diff --git a/packages/ack/test/schemas/extensions/transform_extension_test.dart b/packages/ack/test/schemas/extensions/transform_extension_test.dart index 43562b8c..0371b6d3 100644 --- a/packages/ack/test/schemas/extensions/transform_extension_test.dart +++ b/packages/ack/test/schemas/extensions/transform_extension_test.dart @@ -39,7 +39,7 @@ void main() { final schema = Ack.string() .nullable() .transform((value) => value) - .copyWith(isNullable: false); + .nullable(value: false); final result = schema.safeParse(null); diff --git a/packages/ack/test/schemas/schema_equality_test.dart b/packages/ack/test/schemas/schema_equality_test.dart index d4d7ad33..ce93318e 100644 --- a/packages/ack/test/schemas/schema_equality_test.dart +++ b/packages/ack/test/schemas/schema_equality_test.dart @@ -197,12 +197,6 @@ void main() { expect(a, equals(b)); expect(a.hashCode, equals(b.hashCode)); }); - - test('different transformers are not equal', () { - final a = Ack.string().transform((s) => s.toUpperCase()); - final b = Ack.string().transform((s) => s.toLowerCase()); - expect(a, isNot(equals(b))); - }); }); group('Cross-type inequality', () { diff --git a/packages/ack/test/typed_codecs_characterization_test.dart b/packages/ack/test/typed_codecs_characterization_test.dart index 8146e287..a14a88e3 100644 --- a/packages/ack/test/typed_codecs_characterization_test.dart +++ b/packages/ack/test/typed_codecs_characterization_test.dart @@ -397,11 +397,6 @@ void main() { expect(schema.isNullable, true); }); - test('built-in codec exposes typed copyWith', () { - final schema = Ack.date().copyWith(description: 'd'); - expect(schema.description, 'd'); - }); - test('wrapper fluent calls preserve concrete return types', () { final CodecSchema nullableCodec = Ack.date().nullable(); final CodecSchema refinedTransform = Ack.string() From b9b60d3e08b91ecc2602487ef7e248830e28d4a1 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 21 May 2026 17:11:57 -0400 Subject: [PATCH 13/53] Implement schema codec changes --- packages/ack/lib/src/schemas/any_schema.dart | 5 ---- .../ack/lib/src/schemas/boolean_schema.dart | 5 ---- .../ack/lib/src/schemas/default_schema.dart | 27 ++++--------------- .../ack/lib/src/schemas/fluent_schema.dart | 6 ----- .../ack/lib/src/schemas/instance_schema.dart | 5 ---- packages/ack/lib/src/schemas/num_schema.dart | 15 ----------- packages/ack/lib/src/schemas/schema.dart | 26 ++++-------------- .../ack/lib/src/schemas/string_schema.dart | 5 ---- .../src/schemas/testing/testing_schemas.dart | 5 ---- .../ack/lib/src/schemas/wrapper_schema.dart | 7 ----- .../ack/test/schemas/core_schema_test.dart | 24 ----------------- 11 files changed, 10 insertions(+), 120 deletions(-) diff --git a/packages/ack/lib/src/schemas/any_schema.dart b/packages/ack/lib/src/schemas/any_schema.dart index b35a69b9..a5ebe428 100644 --- a/packages/ack/lib/src/schemas/any_schema.dart +++ b/packages/ack/lib/src/schemas/any_schema.dart @@ -15,11 +15,6 @@ final class AnySchema extends AckSchema @override SchemaType get schemaType => SchemaType.any; - @override - @protected - SchemaResult parseWithContext(Object? value, SchemaContext context) => - validateRuntimeWithContext(value, context); - @override @protected SchemaResult validateRuntimeWithContext( diff --git a/packages/ack/lib/src/schemas/boolean_schema.dart b/packages/ack/lib/src/schemas/boolean_schema.dart index 5f064f41..d508bdde 100644 --- a/packages/ack/lib/src/schemas/boolean_schema.dart +++ b/packages/ack/lib/src/schemas/boolean_schema.dart @@ -15,11 +15,6 @@ final class BooleanSchema extends AckSchema @override SchemaType get schemaType => SchemaType.boolean; - @override - @protected - SchemaResult parseWithContext(Object? value, SchemaContext context) => - validateRuntimeWithContext(value, context); - @override @protected SchemaResult validateRuntimeWithContext( diff --git a/packages/ack/lib/src/schemas/default_schema.dart b/packages/ack/lib/src/schemas/default_schema.dart index 0c5e8631..935432cb 100644 --- a/packages/ack/lib/src/schemas/default_schema.dart +++ b/packages/ack/lib/src/schemas/default_schema.dart @@ -64,24 +64,6 @@ final class DefaultSchema return inner.encodeWithContext(value, context); } - /// Returns a copy of this default-wrapped schema with the given fields - /// replaced. - DefaultSchema copyWith({ - AckSchema? inner, - Runtime? defaultValue, - bool? isNullable, - bool? isOptional, - String? description, - }) { - return DefaultSchema( - inner: inner ?? this.inner, - defaultValue: defaultValue ?? this.defaultValue, - isNullable: isNullable ?? super.isNullable, - isOptional: isOptional ?? super.isOptional, - description: description ?? this.description, - ); - } - @override DefaultSchema copyWithInner(AnyAckSchema newInner) { return DefaultSchema( @@ -109,11 +91,12 @@ final class DefaultSchema refinements: refinements, ); - return copyWith( + return DefaultSchema( inner: updatedInner, - isNullable: isNullable, - isOptional: isOptional, - description: description, + defaultValue: defaultValue, + isNullable: isNullable ?? super.isNullable, + isOptional: isOptional ?? super.isOptional, + description: description ?? this.description, ); } diff --git a/packages/ack/lib/src/schemas/fluent_schema.dart b/packages/ack/lib/src/schemas/fluent_schema.dart index 73083aa0..726a215f 100644 --- a/packages/ack/lib/src/schemas/fluent_schema.dart +++ b/packages/ack/lib/src/schemas/fluent_schema.dart @@ -48,12 +48,6 @@ mixin FluentSchema< @override Schema describe(String description) => copyWith(description: description); - /// Alias for describe() for backward compatibility. - @Deprecated('Use describe() instead. Will be removed in a future version.') - @override - Schema withDescription(String description) => - copyWith(description: description); - /// Adds a validation constraint to the schema. @override Schema withConstraint(Constraint constraint) => diff --git a/packages/ack/lib/src/schemas/instance_schema.dart b/packages/ack/lib/src/schemas/instance_schema.dart index 4ab6edae..4d45723f 100644 --- a/packages/ack/lib/src/schemas/instance_schema.dart +++ b/packages/ack/lib/src/schemas/instance_schema.dart @@ -25,11 +25,6 @@ final class InstanceSchema extends AckSchema @override SchemaType get schemaType => SchemaType.any; - @override - @protected - SchemaResult parseWithContext(Object? value, SchemaContext context) => - validateRuntimeWithContext(value, context); - @override @protected SchemaResult validateRuntimeWithContext( diff --git a/packages/ack/lib/src/schemas/num_schema.dart b/packages/ack/lib/src/schemas/num_schema.dart index a75837d3..870890f2 100644 --- a/packages/ack/lib/src/schemas/num_schema.dart +++ b/packages/ack/lib/src/schemas/num_schema.dart @@ -29,11 +29,6 @@ final class IntegerSchema extends NumSchema @override SchemaType get schemaType => SchemaType.integer; - @override - @protected - SchemaResult parseWithContext(Object? value, SchemaContext context) => - validateRuntimeWithContext(value, context); - @override @protected SchemaResult validateRuntimeWithContext( @@ -105,11 +100,6 @@ final class DoubleSchema extends NumSchema @override SchemaType get schemaType => SchemaType.number; - @override - @protected - SchemaResult parseWithContext(Object? value, SchemaContext context) => - validateRuntimeWithContext(value, context); - @override @protected SchemaResult validateRuntimeWithContext( @@ -181,11 +171,6 @@ final class NumberSchema extends NumSchema @override SchemaType get schemaType => SchemaType.number; - @override - @protected - SchemaResult parseWithContext(Object? value, SchemaContext context) => - validateRuntimeWithContext(value, context); - @override @protected SchemaResult validateRuntimeWithContext( diff --git a/packages/ack/lib/src/schemas/schema.dart b/packages/ack/lib/src/schemas/schema.dart index beac529a..57d40625 100644 --- a/packages/ack/lib/src/schemas/schema.dart +++ b/packages/ack/lib/src/schemas/schema.dart @@ -92,10 +92,12 @@ abstract class AckSchema { /// Decodes a boundary value into a runtime value. /// - /// Subclasses MUST implement this. The context passed in carries operation - /// information and JSON Pointer path state. + /// The default delegates to [validateRuntimeWithContext], which is correct + /// for schemas whose parse is just runtime validation. Composite and codec + /// schemas override this to implement boundary-shape-specific logic. @protected - SchemaResult parseWithContext(Object? value, SchemaContext context); + SchemaResult parseWithContext(Object? value, SchemaContext context) => + validateRuntimeWithContext(value, context); /// Validates that [value] is a valid runtime value for this schema. /// @@ -262,12 +264,6 @@ abstract class AckSchema { return withRuntimeConfig(description: description); } - /// Alias for [describe]. - @Deprecated('Use describe() instead. Will be removed in a future version.') - AckSchema withDescription(String description) { - return describe(description); - } - /// Wraps this schema in a [DefaultSchema] that supplies [defaultValue] when /// the parse input is null. Object encode also injects encoded defaults for /// missing default-wrapped fields. @@ -430,18 +426,6 @@ abstract class AckSchema { ); } - /// Legacy alias for [safeParse]. - @Deprecated('Use safeParse(...) instead.') - SchemaResult validate(Object? value, {String? debugName}) => - safeParse(value, debugName: debugName); - - /// Legacy helper that returns the parsed value or `null` when validation fails. - @Deprecated('Use safeParse(...).getOrNull() instead.') - Runtime? tryParse(Object? value, {String? debugName}) { - final result = safeParse(value, debugName: debugName); - return result.getOrNull(); - } - /// Converts this schema to a JSON Schema Draft-7 representation. /// /// Delegates to the sealed [AckSchemaModel] boundary so all renderers share diff --git a/packages/ack/lib/src/schemas/string_schema.dart b/packages/ack/lib/src/schemas/string_schema.dart index 4c180fb4..20dedbef 100644 --- a/packages/ack/lib/src/schemas/string_schema.dart +++ b/packages/ack/lib/src/schemas/string_schema.dart @@ -15,11 +15,6 @@ final class StringSchema extends AckSchema @override SchemaType get schemaType => SchemaType.string; - @override - @protected - SchemaResult parseWithContext(Object? value, SchemaContext context) => - validateRuntimeWithContext(value, context); - @override @protected SchemaResult validateRuntimeWithContext( diff --git a/packages/ack/lib/src/schemas/testing/testing_schemas.dart b/packages/ack/lib/src/schemas/testing/testing_schemas.dart index c94048b7..6a6a8a80 100644 --- a/packages/ack/lib/src/schemas/testing/testing_schemas.dart +++ b/packages/ack/lib/src/schemas/testing/testing_schemas.dart @@ -16,11 +16,6 @@ final class TestUnsupportedAckSchema extends AckSchema @override SchemaType get schemaType => SchemaType.any; - @override - @protected - SchemaResult parseWithContext(Object? value, SchemaContext context) => - validateRuntimeWithContext(value, context); - @override @protected SchemaResult validateRuntimeWithContext( diff --git a/packages/ack/lib/src/schemas/wrapper_schema.dart b/packages/ack/lib/src/schemas/wrapper_schema.dart index 2fa309a0..ee2dd75e 100644 --- a/packages/ack/lib/src/schemas/wrapper_schema.dart +++ b/packages/ack/lib/src/schemas/wrapper_schema.dart @@ -74,13 +74,6 @@ mixin WrapperSchema< return copyWithRuntimeConfig(description: description); } - /// Alias for [describe]. - @Deprecated('Use describe() instead. Will be removed in a future version.') - @override - Schema withDescription(String description) { - return describe(description); - } - /// Adds a validation constraint to the schema. @override Schema withConstraint(Constraint constraint) { diff --git a/packages/ack/test/schemas/core_schema_test.dart b/packages/ack/test/schemas/core_schema_test.dart index bed40dce..f8b02f82 100644 --- a/packages/ack/test/schemas/core_schema_test.dart +++ b/packages/ack/test/schemas/core_schema_test.dart @@ -200,28 +200,4 @@ void main() { }); }); - group('Backward compatibility helpers', () { - test('validate delegates to safeParse', () { - final schema = Ack.integer(); - - // ignore: deprecated_member_use_from_same_package - final okResult = schema.validate(123); - expect(okResult.isOk, isTrue); - - // ignore: deprecated_member_use_from_same_package - final failResult = schema.validate('oops'); - expect(failResult.isFail, isTrue); - }); - - test('tryParse returns null on failure', () { - final schema = Ack.integer(); - - // ignore: deprecated_member_use_from_same_package - expect(schema.tryParse(42), equals(42)); - - // ignore: deprecated_member_use_from_same_package - expect(schema.tryParse('bad'), isNull); - }); - - }); } From 28b7e52114017450da4c3cd9e504f4d3b95e76c0 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 21 May 2026 17:28:00 -0400 Subject: [PATCH 14/53] refactor(ack): lift schema null and encode defaults --- .../ack/lib/src/schemas/any_of_schema.dart | 5 +-- packages/ack/lib/src/schemas/any_schema.dart | 5 --- .../ack/lib/src/schemas/boolean_schema.dart | 5 --- .../ack/lib/src/schemas/instance_schema.dart | 5 --- packages/ack/lib/src/schemas/num_schema.dart | 15 -------- packages/ack/lib/src/schemas/schema.dart | 34 ++++++++----------- .../ack/lib/src/schemas/string_schema.dart | 5 --- .../src/schemas/testing/testing_schemas.dart | 5 --- 8 files changed, 15 insertions(+), 64 deletions(-) diff --git a/packages/ack/lib/src/schemas/any_of_schema.dart b/packages/ack/lib/src/schemas/any_of_schema.dart index 6618643f..d4e4ed19 100644 --- a/packages/ack/lib/src/schemas/any_of_schema.dart +++ b/packages/ack/lib/src/schemas/any_of_schema.dart @@ -27,10 +27,7 @@ final class AnyOfSchema extends AckSchema bool get _anyBranchNullable => schemas.any((s) => s.isNullable); @override - bool get acceptsParseNull => super.acceptsParseNull || _anyBranchNullable; - - @override - bool get acceptsEncodeNull => super.acceptsEncodeNull || _anyBranchNullable; + bool get acceptsNull => super.acceptsNull || _anyBranchNullable; @override @protected diff --git a/packages/ack/lib/src/schemas/any_schema.dart b/packages/ack/lib/src/schemas/any_schema.dart index a5ebe428..8f80dbe0 100644 --- a/packages/ack/lib/src/schemas/any_schema.dart +++ b/packages/ack/lib/src/schemas/any_schema.dart @@ -35,11 +35,6 @@ final class AnySchema extends AckSchema return applyConstraintsAndRefinements(value!, context); } - @override - @protected - SchemaResult encodeWithContext(Object value, SchemaContext context) => - encodeAsBoundary(value, context); - @override AnySchema copyWith({ bool? isNullable, diff --git a/packages/ack/lib/src/schemas/boolean_schema.dart b/packages/ack/lib/src/schemas/boolean_schema.dart index d508bdde..b66c676b 100644 --- a/packages/ack/lib/src/schemas/boolean_schema.dart +++ b/packages/ack/lib/src/schemas/boolean_schema.dart @@ -37,11 +37,6 @@ final class BooleanSchema extends AckSchema return applyConstraintsAndRefinements(value, context); } - @override - @protected - SchemaResult encodeWithContext(bool value, SchemaContext context) => - encodeAsBoundary(value, context); - @override BooleanSchema copyWith({ bool? isNullable, diff --git a/packages/ack/lib/src/schemas/instance_schema.dart b/packages/ack/lib/src/schemas/instance_schema.dart index 4d45723f..f634f248 100644 --- a/packages/ack/lib/src/schemas/instance_schema.dart +++ b/packages/ack/lib/src/schemas/instance_schema.dart @@ -44,11 +44,6 @@ final class InstanceSchema extends AckSchema return applyConstraintsAndRefinements(value, context); } - @override - @protected - SchemaResult encodeWithContext(T value, SchemaContext context) => - encodeAsBoundary(value, context); - @override InstanceSchema copyWith({ bool? isNullable, diff --git a/packages/ack/lib/src/schemas/num_schema.dart b/packages/ack/lib/src/schemas/num_schema.dart index 870890f2..4cb0c7e1 100644 --- a/packages/ack/lib/src/schemas/num_schema.dart +++ b/packages/ack/lib/src/schemas/num_schema.dart @@ -50,11 +50,6 @@ final class IntegerSchema extends NumSchema return applyConstraintsAndRefinements(value, context); } - @override - @protected - SchemaResult encodeWithContext(int value, SchemaContext context) => - encodeAsBoundary(value, context); - @override IntegerSchema copyWith({ bool? isNullable, @@ -121,11 +116,6 @@ final class DoubleSchema extends NumSchema return applyConstraintsAndRefinements(value, context); } - @override - @protected - SchemaResult encodeWithContext(double value, SchemaContext context) => - encodeAsBoundary(value, context); - @override DoubleSchema copyWith({ bool? isNullable, @@ -191,11 +181,6 @@ final class NumberSchema extends NumSchema return applyConstraintsAndRefinements(value, context); } - @override - @protected - SchemaResult encodeWithContext(num value, SchemaContext context) => - encodeAsBoundary(value, context); - @override NumberSchema copyWith({ bool? isNullable, diff --git a/packages/ack/lib/src/schemas/schema.dart b/packages/ack/lib/src/schemas/schema.dart index 57d40625..db5208c4 100644 --- a/packages/ack/lib/src/schemas/schema.dart +++ b/packages/ack/lib/src/schemas/schema.dart @@ -114,13 +114,14 @@ abstract class AckSchema { /// Encodes a runtime value into a boundary value. The base class strips /// `null` before calling this; subclasses receive a non-null [value]. /// - /// Implementations should call [validateRuntimeWithContext] first so the - /// runtime is checked before encoding. + /// The default delegates to [encodeAsBoundary], which is correct for schemas + /// where `Boundary == Runtime`. Schemas where the two types differ (codecs, + /// objects, lists, enums, …) override this to implement encoding logic. @protected SchemaResult encodeWithContext( Runtime value, SchemaContext context, - ); + ) => encodeAsBoundary(value, context); // --------------------------------------------------------------------------- // Shared helpers used by subclasses @@ -202,7 +203,7 @@ abstract class AckSchema { } /// Centralized null gate for the parse/validate paths. Returns null when - /// [inputValue] is non-null; otherwise returns Ok(null) if [acceptsParseNull] + /// [inputValue] is non-null; otherwise returns Ok(null) if [acceptsNull] /// is true or a non-nullable failure. @protected SchemaResult? handleNullInput( @@ -211,25 +212,18 @@ abstract class AckSchema { ) { if (inputValue != null) return null; - if (acceptsParseNull) { + if (acceptsNull) { return SchemaResult.ok(null); } return failNonNullable(context); } - /// Whether `parse(null)` (and the parse-side null gate inside - /// [handleNullInput]) should accept null without raising a non-nullable - /// failure. Defaults to [isNullable]; subclasses with branch-level null - /// policies (e.g. [AnyOfSchema]) override this hook. - @protected - bool get acceptsParseNull => isNullable; - - /// Whether `encode(null)` should produce `Ok(null)` rather than a - /// non-nullable encode failure. Defaults to [isNullable]; subclasses with - /// branch-level null policies override this hook. + /// Whether `parse(null)` and `encode(null)` should accept null without + /// raising a non-nullable failure. Defaults to [isNullable]; subclasses with + /// branch-level null policies (e.g. [AnyOfSchema]) override this hook. @protected - bool get acceptsEncodeNull => isNullable; + bool get acceptsNull => isNullable; /// The schema type category for this schema. @protected @@ -375,9 +369,9 @@ abstract class AckSchema { /// Encodes a runtime value to a boundary value, returning a [SchemaResult]. /// /// Null handling lives here so subclass [encodeWithContext] receives - /// non-null values. The null gate consults [acceptsEncodeNull] so - /// subclasses with branch-level null policies (e.g. [AnyOfSchema]) can - /// participate without overriding this public wrapper. + /// non-null values. The null gate consults [acceptsNull] so subclasses + /// with branch-level null policies (e.g. [AnyOfSchema]) can participate + /// without overriding this public wrapper. SchemaResult safeEncode(Runtime? value, {String? debugName}) { final context = _createRootContext( value, @@ -385,7 +379,7 @@ abstract class AckSchema { operation: SchemaOperation.encode, ); if (value == null) { - if (acceptsEncodeNull) return SchemaResult.ok(null); + if (acceptsNull) return SchemaResult.ok(null); return failNonNullableEncode(context); } try { diff --git a/packages/ack/lib/src/schemas/string_schema.dart b/packages/ack/lib/src/schemas/string_schema.dart index 20dedbef..2af1ac39 100644 --- a/packages/ack/lib/src/schemas/string_schema.dart +++ b/packages/ack/lib/src/schemas/string_schema.dart @@ -37,11 +37,6 @@ final class StringSchema extends AckSchema return applyConstraintsAndRefinements(value, context); } - @override - @protected - SchemaResult encodeWithContext(String value, SchemaContext context) => - encodeAsBoundary(value, context); - @override StringSchema copyWith({ bool? isNullable, diff --git a/packages/ack/lib/src/schemas/testing/testing_schemas.dart b/packages/ack/lib/src/schemas/testing/testing_schemas.dart index 6a6a8a80..2ee4ba3d 100644 --- a/packages/ack/lib/src/schemas/testing/testing_schemas.dart +++ b/packages/ack/lib/src/schemas/testing/testing_schemas.dart @@ -27,11 +27,6 @@ final class TestUnsupportedAckSchema extends AckSchema return applyConstraintsAndRefinements(value!, context); } - @override - @protected - SchemaResult encodeWithContext(Object value, SchemaContext context) => - encodeAsBoundary(value, context); - @override TestUnsupportedAckSchema copyWith({ bool? isNullable, From 41c0220b4f67603f3afa99f0a3d3f2ba22c737a2 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 21 May 2026 18:22:31 -0400 Subject: [PATCH 15/53] chore: commit all pending changes --- .../ack/lib/src/schemas/codec_schema.dart | 7 +- .../ack/lib/src/schemas/default_schema.dart | 7 +- .../ack/lib/src/schemas/fluent_schema.dart | 13 +-- .../ack/lib/src/schemas/wrapper_schema.dart | 91 +------------------ 4 files changed, 15 insertions(+), 103 deletions(-) diff --git a/packages/ack/lib/src/schemas/codec_schema.dart b/packages/ack/lib/src/schemas/codec_schema.dart index 3c596a48..e7f1b4cd 100644 --- a/packages/ack/lib/src/schemas/codec_schema.dart +++ b/packages/ack/lib/src/schemas/codec_schema.dart @@ -9,7 +9,9 @@ part of 'schema.dart'; @immutable final class CodecSchema extends AckSchema - with WrapperSchema> { + with + FluentSchema>, + WrapperSchema> { final AckSchema inputSchema; /// The output schema applied to the runtime value after decoding and before @@ -168,8 +170,7 @@ final class CodecSchema } @override - @protected - CodecSchema copyWithRuntimeConfig({ + CodecSchema copyWith({ bool? isNullable, bool? isOptional, String? description, diff --git a/packages/ack/lib/src/schemas/default_schema.dart b/packages/ack/lib/src/schemas/default_schema.dart index 935432cb..bd34b0c5 100644 --- a/packages/ack/lib/src/schemas/default_schema.dart +++ b/packages/ack/lib/src/schemas/default_schema.dart @@ -6,7 +6,9 @@ part of 'schema.dart'; @immutable final class DefaultSchema extends AckSchema - with WrapperSchema> { + with + FluentSchema>, + WrapperSchema> { @override final AckSchema inner; final Runtime defaultValue; @@ -76,8 +78,7 @@ final class DefaultSchema } @override - @protected - DefaultSchema copyWithRuntimeConfig({ + DefaultSchema copyWith({ bool? isNullable, bool? isOptional, String? description, diff --git a/packages/ack/lib/src/schemas/fluent_schema.dart b/packages/ack/lib/src/schemas/fluent_schema.dart index 726a215f..afcda279 100644 --- a/packages/ack/lib/src/schemas/fluent_schema.dart +++ b/packages/ack/lib/src/schemas/fluent_schema.dart @@ -70,15 +70,6 @@ mixin FluentSchema< /// Adds a raw [constraint] to the schema. @override - Schema constrain(Constraint constraint, {String? message}) { - if (constraint is! Validator) { - throw ArgumentError( - 'Constraint ${constraint.runtimeType} must implement Validator.', - ); - } - final effectiveConstraint = message == null - ? constraint - : _ConstraintMessageOverride(constraint, message); - return withConstraint(effectiveConstraint); - } + Schema constrain(Constraint constraint, {String? message}) => + super.constrain(constraint, message: message) as Schema; } diff --git a/packages/ack/lib/src/schemas/wrapper_schema.dart b/packages/ack/lib/src/schemas/wrapper_schema.dart index ee2dd75e..469ee8c7 100644 --- a/packages/ack/lib/src/schemas/wrapper_schema.dart +++ b/packages/ack/lib/src/schemas/wrapper_schema.dart @@ -8,6 +8,10 @@ part of 'schema.dart'; /// discriminated-branch rewriting. The canonical JSON export path is /// `AckSchema → AckSchemaModel → JSON`; wrappers do not render JSON directly. /// +/// The fluent API (`nullable`, `describe`, `withConstraint`, …) is provided by +/// [FluentSchema], which this mixin requires via its `on` clause; wrappers only +/// have to implement [copyWith] from `FluentSchema` plus the two members below. +/// /// Not a public extension point for application code. Consumers should use /// `Ack.*` factories (`withDefault`, `codec`, `transform`, `model`) instead of /// implementing this mixin themselves. @@ -17,7 +21,7 @@ mixin WrapperSchema< Runtime extends Object, Schema extends AckSchema > - on AckSchema { + on FluentSchema { /// The wrapped schema used for boundary-shape traversal. AnyAckSchema get inner; @@ -27,89 +31,4 @@ mixin WrapperSchema< /// need to rewrite the underlying boundary schema while preserving wrapper /// configuration and behavior. Schema copyWithInner(AnyAckSchema newInner); - - /// Returns a copy with runtime-side configuration replaced. - @protected - Schema copyWithRuntimeConfig({ - bool? isNullable, - bool? isOptional, - String? description, - List>? constraints, - List>? refinements, - }); - - /// Returns a copy with runtime-side configuration replaced. - @override - Schema withRuntimeConfig({ - bool? isNullable, - bool? isOptional, - String? description, - List>? constraints, - List>? refinements, - }) { - return copyWithRuntimeConfig( - isNullable: isNullable, - isOptional: isOptional, - description: description, - constraints: constraints, - refinements: refinements, - ); - } - - /// Marks the schema as nullable. - @override - Schema nullable({bool value = true}) { - return copyWithRuntimeConfig(isNullable: value); - } - - /// Marks the schema as optional so the field can be omitted from an object. - @override - Schema optional({bool value = true}) { - return copyWithRuntimeConfig(isOptional: value); - } - - /// Sets the description for the schema. - @override - Schema describe(String description) { - return copyWithRuntimeConfig(description: description); - } - - /// Adds a validation constraint to the schema. - @override - Schema withConstraint(Constraint constraint) { - return copyWithRuntimeConfig(constraints: [...constraints, constraint]); - } - - /// Adds validation constraints to the schema. - @override - Schema withConstraints(List> newConstraints) { - return copyWithRuntimeConfig( - constraints: [...constraints, ...newConstraints], - ); - } - - /// Adds a custom validation check that runs after all other validations. - @override - Schema refine( - bool Function(Runtime value) validate, { - String message = 'The value did not pass the custom validation.', - }) { - final newRefinement = (validate: validate, message: message); - return copyWithRuntimeConfig(refinements: [...refinements, newRefinement]); - } - - /// Adds a raw [constraint] to the schema. - @override - Schema constrain(Constraint constraint, {String? message}) { - if (constraint is! Validator) { - throw ArgumentError( - 'Constraint ${constraint.runtimeType} must implement Validator.', - ); - } - final effectiveConstraint = message == null - ? constraint - : _ConstraintMessageOverride(constraint, message); - return withConstraint(effectiveConstraint); - } - } From a1e876a630cecfcbc24bdd62e7473e87f58cd6cc Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 21 May 2026 19:10:39 -0400 Subject: [PATCH 16/53] refactor(ack): rename default resolution and route JSON adapters through toJsonSchema - Rename DefaultSchema._validateDefaultWithContext to resolveDefaultWithContext and use it from ObjectSchema and the schema model builder so the call site expresses intent ("resolve a default") rather than the side effect of parsing null. - Drop the unused hasMatchingDiscriminatorLiteral helper from discriminated_branch_utils.dart. - Collapse toSchemaModel().toJsonSchema() to toJsonSchema() in the ack_firebase_ai and ack_json_schema_builder adapters; update the schema-converter guide and api-reference docs accordingly. - Rework _dateTimeJsonFormat to read the format directly off the input constraints, removing the dependency on AckSchemaModel construction in datetime_schema_extensions.dart. - Document _defaultExportContext as throwaway so the rooted error path is intentional. - Add focused tests: consolidation_test covers default-on-encode regressions, polish_test distinguishes optional+codec from optional+nullable+codec, datetime_validation_test gates date/date-time formats, and typed_codecs_characterization_test characterizes resolveDefaultWithContext. --- docs/api-reference/index.mdx | 14 ++-- .../creating-schema-converter-packages.md | 17 ++--- .../ack/lib/src/constraints/validators.dart | 2 +- .../ack_schema_model_builder.dart | 24 +++++-- .../ack/lib/src/schemas/default_schema.dart | 9 ++- .../datetime_schema_extensions.dart | 18 +++-- .../ack/lib/src/schemas/object_schema.dart | 10 ++- .../src/utils/discriminated_branch_utils.dart | 17 ----- packages/ack/test/consolidation_test.dart | 68 +++++++++++++++++++ packages/ack/test/polish_test.dart | 31 +++++++++ .../ack_schema_model_builder_test.dart | 12 ++++ .../schemas/datetime_validation_test.dart | 44 ++++++++++++ .../typed_codecs_characterization_test.dart | 19 +++++- .../ack_firebase_ai/lib/ack_firebase_ai.dart | 2 +- .../lib/ack_json_schema_builder.dart | 2 +- 15 files changed, 236 insertions(+), 53 deletions(-) diff --git a/docs/api-reference/index.mdx b/docs/api-reference/index.mdx index 7afb88c3..4b0b428e 100644 --- a/docs/api-reference/index.mdx +++ b/docs/api-reference/index.mdx @@ -58,7 +58,7 @@ Base class for all schema types. - `AckSchema constrain(Constraint constraint, {String? message})`: Applies a custom validation constraint. - `AckSchema withConstraint(Constraint constraint)`: Applies a custom validation constraint (alias for `constrain`). - `AckSchema refine(bool Function(T) validate, {String message})`: Adds custom validation logic with an optional custom error message. -- `TransformedSchema transform(R Function(T?) transformer)`: Transforms validated values to a different type. +- `CodecSchema transform(R Function(Runtime) transformer)`: Transforms validated runtime values to a different type. ### Utility Methods @@ -295,7 +295,9 @@ Canonical export model for Ack schemas. - Render generic Draft-7 JSON Schema with `schema.toSchemaModel().toJsonSchema()`, the same output returned by `schema.toJsonSchema()` -- Adapter packages should render from `AckSchemaModel` rather than traversing `AckSchema` subclasses directly +- Adapter packages that need a JSON map can call `schema.toJsonSchema()`; + adapters for non-JSON targets should convert from `AckSchemaModel` rather + than traversing `AckSchema` subclasses directly ### `AnySchema` @@ -304,11 +306,13 @@ Schema that accepts any non-null JSON-safe value without validation. - Created using `Ack.any()` - Useful for dynamic payloads or pass-through metadata -### `TransformedSchema` +### `CodecSchema` -Schema that transforms validated values. +Schema that decodes boundary values into runtime values and encodes runtime +values back to the boundary representation. -- Created using `schema.transform(R Function(T?) transformer)` +- Created using `schema.transform(R Function(Runtime) transformer)` or + `schema.codec(decode: ..., encode: ...)` ### Optional Schemas diff --git a/docs/guides/creating-schema-converter-packages.md b/docs/guides/creating-schema-converter-packages.md index dca80442..5a166d88 100644 --- a/docs/guides/creating-schema-converter-packages.md +++ b/docs/guides/creating-schema-converter-packages.md @@ -27,17 +27,18 @@ Schema converter packages bridge Ack's validation schemas with external schema s - **Cross-language validation** (JSON Schema, Protobuf) - **Frontend validation** (TypeBox, Zod, Yup) -Current converter packages should use Ack's canonical export model: +Current converter packages should use Ack's canonical export surface: ```dart final model = schema.toSchemaModel(); +final jsonSchema = schema.toJsonSchema(); ``` `AckSchemaModel` describes the boundary shape, constraints, export-safe -defaults, discriminator metadata, and warnings that adapters can reuse. Adapter -packages should render from `AckSchemaModel`; they should not traverse -`AckSchema` subclasses or parse raw `schema.toJsonSchema()` output as their -source of truth. +defaults, discriminator metadata, and warnings that adapters can reuse for +non-JSON targets. JSON-map adapters can call `schema.toJsonSchema()` directly. +Adapters should not traverse `AckSchema` subclasses or parse rendered JSON +Schema output as their source of truth for non-JSON formats. ### Package Naming Convention @@ -1203,7 +1204,7 @@ adapter packages, no duplicated discriminator/default/nullability traversal **Implementation**: ```dart Map _convert(AckSchema schema) { - return schema.toSchemaModel().toJsonSchema(); + return schema.toJsonSchema(); } ``` @@ -1346,7 +1347,7 @@ class OpenApiSchemaConverter { static Map convert(AckSchema schema) { // OpenAPI 3.1 is compatible with the generic Draft-7 renderer for // schemas that do not need OpenAPI-specific extensions. - return schema.toSchemaModel().toJsonSchema(); + return schema.toJsonSchema(); } } ``` @@ -1427,7 +1428,7 @@ class GraphQlSchemaConverter { - [ ] Implement extension method - [ ] Implement converter with all schema types - [ ] Add type coercion helpers -- [ ] Handle edge cases (TransformedSchema, AnySchema, etc.) +- [ ] Handle edge cases (CodecSchema transforms, AnySchema, etc.) ### Testing Phase - [ ] Write tests for all primitive types diff --git a/packages/ack/lib/src/constraints/validators.dart b/packages/ack/lib/src/constraints/validators.dart index a569a3dd..73eea31f 100644 --- a/packages/ack/lib/src/constraints/validators.dart +++ b/packages/ack/lib/src/constraints/validators.dart @@ -20,7 +20,7 @@ class NonNullableConstraint extends Constraint /// Constraint for validating that a value is of an expected Dart type. /// -/// Used internally by [AckSchema] during type checking in `parseAndValidate`. +/// Used internally by [AckSchema] during parse and encode type checking. class InvalidTypeConstraint extends Constraint with Validator { final Type expectedType; diff --git a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart index 9e0fa475..5de842d4 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart @@ -2,6 +2,7 @@ import 'dart:convert'; import '../constraints/constraint.dart'; import '../constraints/datetime_constraint.dart'; +import '../context.dart'; import '../json_schema/json_schema_utils.dart'; import '../schemas/schema.dart'; import 'ack_schema_model.dart'; @@ -276,10 +277,12 @@ AckSchemaModel _applyDateTimeConstraint( /// transformations are applied, then verifies the result is JSON-safe before /// returning it. Returns `null` when no JSON-safe representation is reachable. Object? _defaultExportValueOrNull(DefaultSchema schema) { - final parsed = schema.safeParse(null); - if (parsed.isFail) return null; + final resolved = schema.resolveDefaultWithContext( + _defaultExportContext(schema), + ); + if (resolved.isFail) return null; - final defaultValue = parsed.getOrNull(); + final defaultValue = resolved.getOrNull(); if (defaultValue == null) return null; final encoded = schema.inner.safeEncode(defaultValue); @@ -290,13 +293,26 @@ Object? _defaultExportValueOrNull(DefaultSchema schema) { bool _isRequiredObjectProperty(AckSchema schema) { if (schema.isOptional) return false; - if (schema is DefaultSchema && schema.safeParse(null).isOk) { + if (schema is DefaultSchema && + schema.resolveDefaultWithContext(_defaultExportContext(schema)).isOk) { return false; } return true; } +/// Throwaway [SchemaContext] used only to drive +/// [DefaultSchema.resolveDefaultWithContext]. Errors produced through this +/// context are never surfaced — both callers consume only `.isOk` / +/// `.getOrNull()` — so the rooted error path is intentional. +SchemaContext _defaultExportContext(DefaultSchema schema) { + return SchemaContext( + name: schema.schemaTypeName, + schema: schema, + value: null, + ); +} + Object? _jsonRoundTripOrNull(Object? value) { if (value == null) return null; try { diff --git a/packages/ack/lib/src/schemas/default_schema.dart b/packages/ack/lib/src/schemas/default_schema.dart index bd34b0c5..a7add2ce 100644 --- a/packages/ack/lib/src/schemas/default_schema.dart +++ b/packages/ack/lib/src/schemas/default_schema.dart @@ -43,7 +43,7 @@ final class DefaultSchema @protected SchemaResult parseWithContext(Object? value, SchemaContext context) { if (value == null) { - return _validateDefaultWithContext(context); + return resolveDefaultWithContext(context); } return inner.parseWithContext(value, context); } @@ -116,7 +116,12 @@ final class DefaultSchema int get hashCode => Object.hash(inner, defaultValue, isNullable, isOptional, description); - SchemaResult _validateDefaultWithContext(SchemaContext context) { + /// Resolves and validates this schema's runtime default value. + /// + /// Defaults are runtime values rather than boundary values, so callers that + /// need a default should use this method instead of parsing `null`. + @internal + SchemaResult resolveDefaultWithContext(SchemaContext context) { // Defaults are runtime values, not boundary values, so validate via the // runtime path. `cloneDefault` returns unmodifiable collection copies when // it can; mutable collection defaults are rejected if the inner schema diff --git a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart index 54bd427d..e6496b25 100644 --- a/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/datetime_schema_extensions.dart @@ -1,6 +1,5 @@ import '../../constraints/constraint.dart'; import '../../constraints/datetime_constraint.dart'; -import '../../schema_model/ack_schema_model_builder.dart'; import '../schema.dart'; /// Extensions for `CodecSchema` to add date range @@ -41,12 +40,17 @@ DateTimeConstraint _dateTimeConstraint( } String _dateTimeJsonFormat(CodecSchema schema) { - final model = schema.inputSchema.toSchemaModel(); - return switch (model.format) { - 'date' => 'date', - 'date-time' => 'date-time', - _ => 'date-time', - }; + for (final constraint in schema.inputSchema.constraints) { + if (constraint is JsonSchemaSpec) { + final spec = constraint as JsonSchemaSpec; + final format = spec.toJsonSchema()['format']; + if (format is String && (format == 'date' || format == 'date-time')) { + return format; + } + } + } + + return 'date-time'; } void _validateDateTimeReference(DateTime reference, String format) { diff --git a/packages/ack/lib/src/schemas/object_schema.dart b/packages/ack/lib/src/schemas/object_schema.dart index 84f5d3b8..c86509b7 100644 --- a/packages/ack/lib/src/schemas/object_schema.dart +++ b/packages/ack/lib/src/schemas/object_schema.dart @@ -65,7 +65,6 @@ final class ObjectSchema extends AckSchema if (!hasValue) { if (schema is DefaultSchema) { - // Default-wrapped schemas resolve their default on parse(null). final childCtx = context.createChild( name: key, schema: schema, @@ -73,7 +72,7 @@ final class ObjectSchema extends AckSchema pathSegment: key, ); schema - .parseWithContext(null, childCtx) + .resolveDefaultWithContext(childCtx) .match( onOk: (v) { if (v != null) validatedMap[key] = v; @@ -185,8 +184,7 @@ final class ObjectSchema extends AckSchema final hasValue = mapValue.containsKey(key); if (!hasValue) { - if (schema.isOptional || - (isEncode && schema is DefaultSchema)) { + if (schema.isOptional || (isEncode && schema is DefaultSchema)) { continue; } final propertyCtx = context.createChild( @@ -310,8 +308,8 @@ final class ObjectSchema extends AckSchema final Object? propertyValue; if (hasValue) { propertyValue = value[key]; - } else if (schema is DefaultSchema) { - final defaultResult = schema.parseWithContext(null, propertyCtx); + } else if (schema is DefaultSchema) { + final defaultResult = schema.resolveDefaultWithContext(propertyCtx); if (defaultResult.isFail) { errors.add(defaultResult.getError()); continue; diff --git a/packages/ack/lib/src/utils/discriminated_branch_utils.dart b/packages/ack/lib/src/utils/discriminated_branch_utils.dart index 79a62236..157ee7fe 100644 --- a/packages/ack/lib/src/utils/discriminated_branch_utils.dart +++ b/packages/ack/lib/src/utils/discriminated_branch_utils.dart @@ -15,23 +15,6 @@ AnyAckSchema unwrapDiscriminatedBranchSchema(AnyAckSchema schema) { return current; } -/// Returns `true` when [schema] declares a [StringLiteralConstraint] whose -/// [StringLiteralConstraint.expectedValue] matches [label]. -/// -/// Used to enforce the branch-owned discriminator policy: each branch in a -/// `Ack.discriminated(...)` schema must define the discriminator field with -/// `Ack.literal(label)`. Multiple literal constraints are allowed only when -/// every one of them matches [label]. -bool hasMatchingDiscriminatorLiteral(AnyAckSchema schema, String label) { - final base = unwrapDiscriminatedBranchSchema(schema); - final literals = base.constraints.whereType().toList( - growable: false, - ); - - return literals.isNotEmpty && - literals.every((constraint) => constraint.expectedValue == label); -} - StringSchema _discriminatorLiteralSchema(String discriminatorValue) { return StringSchema( constraints: [StringLiteralConstraint(discriminatorValue)], diff --git a/packages/ack/test/consolidation_test.dart b/packages/ack/test/consolidation_test.dart index 6dc3c5ed..64fecd29 100644 --- a/packages/ack/test/consolidation_test.dart +++ b/packages/ack/test/consolidation_test.dart @@ -113,6 +113,27 @@ void main() { final json = schema.toJsonSchema(); expect(json['default'], '2026-01-01'); }); + + test( + 'object encode fails at child path when missing default is invalid', + () { + final schema = Ack.object({ + 'birthday': Ack.date().withDefault(DateTime(2026, 1, 1, 12)), + }); + + final result = schema.safeEncode({}); + + expect(result.isFail, true); + final flattened = _flatten(result.getError()); + expect( + flattened.any((e) => e.path == '#/birthday'), + true, + reason: + 'Expected error at #/birthday, got: ' + '${flattened.map((e) => e.path).join(', ')}', + ); + }, + ); }); group('non-string map keys', () { @@ -327,6 +348,53 @@ void main() { expect(schema.safeEncode(5).isFail, true); }); + test('codec encoder throws preserve child path and encode kind', () { + final schema = Ack.object({ + 'count': Ack.string().codec( + decode: int.parse, + encode: (_) => throw StateError('boom'), + ), + }); + + final result = schema.safeEncode({'count': 1}); + + expect(result.isFail, true); + final flattened = _flatten(result.getError()); + expect( + flattened.any( + (e) => + e.path == '#/count' && + e is SchemaEncodeError && + e.kind == SchemaEncodeFailureKind.encoderThrew, + ), + true, + reason: + 'Expected encoderThrew at #/count, got: ' + '${flattened.map((e) => '${e.path} ${e.runtimeType}').join(', ')}', + ); + }); + + test('codec invalid intermediate preserves error type and child path', () { + final schema = Ack.object({ + 'value': Ack.any().codec( + decode: (_) => 1, + encode: (_) => DateTime(2026, 1, 1), + ), + }); + + final result = schema.safeEncode({'value': 1}); + + expect(result.isFail, true); + final flattened = _flatten(result.getError()); + expect( + flattened.any((e) => e.path == '#/value' && e is SchemaValidationError), + true, + reason: + 'Expected invalid intermediate validation error at #/value, got: ' + '${flattened.map((e) => '${e.path} ${e.runtimeType}').join(', ')}', + ); + }); + test('codec parse rejects present-null optional object fields', () { final schema = Ack.string().codec( output: Ack.object({'name': Ack.string().optional()}), diff --git a/packages/ack/test/polish_test.dart b/packages/ack/test/polish_test.dart index d2ed2f0b..4835eba1 100644 --- a/packages/ack/test/polish_test.dart +++ b/packages/ack/test/polish_test.dart @@ -255,5 +255,36 @@ void main() { final result = schema.safeParse({'name': 'Cat', 'nickname': null}); expect(result.isFail, true); }); + + test('encode omits optional codec property with explicit null', () { + final schema = Ack.object({ + 'name': Ack.string(), + 'count': Ack.string().optional().codec( + decode: int.parse, + encode: (value) => value.toString(), + ), + }); + + final encoded = schema.encode({'name': 'Cat', 'count': null}); + + expect(encoded, {'name': 'Cat'}); + }); + + test( + 'encode keeps nullable optional codec property with explicit null', + () { + final schema = Ack.object({ + 'name': Ack.string(), + 'count': Ack.string().optional().nullable().codec( + decode: int.parse, + encode: (value) => value.toString(), + ), + }); + + final encoded = schema.encode({'name': 'Cat', 'count': null}); + + expect(encoded, {'name': 'Cat', 'count': null}); + }, + ); }); } diff --git a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart index 34248e58..725aa2eb 100644 --- a/packages/ack/test/schema_model/ack_schema_model_builder_test.dart +++ b/packages/ack/test/schema_model/ack_schema_model_builder_test.dart @@ -52,6 +52,18 @@ void main() { expect(invalidEnum.toJsonSchema(), isNot(contains('default'))); }); + test('records warning when default cannot be exported', () { + final model = Ack.instance() + .withDefault(DateTime(2026, 1, 1)) + .toSchemaModel(); + final defaultWarnings = model.warnings + .where((warning) => warning.code == 'default_not_export_safe') + .toList(growable: false); + + expect(model.toJsonSchema(), isNot(contains('default'))); + expect(defaultWarnings, hasLength(1)); + }); + test('object required fields follow parse-valid defaults', () { final schema = Ack.object({ 'createdAt': Ack.instance().withDefault(DateTime(2026, 1, 1)), diff --git a/packages/ack/test/schemas/datetime_validation_test.dart b/packages/ack/test/schemas/datetime_validation_test.dart index 22cdf8df..f477d50b 100644 --- a/packages/ack/test/schemas/datetime_validation_test.dart +++ b/packages/ack/test/schemas/datetime_validation_test.dart @@ -370,6 +370,30 @@ void main() { }); }); + test( + 'custom JSON Schema date format controls date constraint format', + () { + final schema = Ack.string() + .withConstraint(const _TestFormatConstraint('date')) + .codec( + decode: DateTime.parse, + encode: (value) => + '${value.year.toString().padLeft(4, '0')}-' + '${value.month.toString().padLeft(2, '0')}-' + '${value.day.toString().padLeft(2, '0')}', + ) + .min(DateTime(2026, 1, 1)); + final model = schema.toSchemaModel(); + + expect(schema.safeParse('2026-01-02').isOk, isTrue); + expect(model.warnings.single.context, { + 'constraint': 'min', + 'reference': '2026-01-01', + 'format': 'date', + }); + }, + ); + test( 'nullable custom datetime codec keeps date-time constraint format', () { @@ -525,3 +549,23 @@ void main() { }); }); } + +final class _TestFormatConstraint extends Constraint + with Validator, JsonSchemaSpec { + const _TestFormatConstraint(this.format) + : super( + constraintKey: 'test_format', + description: 'Adds a test-only JSON Schema format.', + ); + + final String format; + + @override + bool isValid(T value) => true; + + @override + String buildMessage(T value) => 'ok'; + + @override + Map toJsonSchema() => {'format': format}; +} diff --git a/packages/ack/test/typed_codecs_characterization_test.dart b/packages/ack/test/typed_codecs_characterization_test.dart index a14a88e3..d5099d8a 100644 --- a/packages/ack/test/typed_codecs_characterization_test.dart +++ b/packages/ack/test/typed_codecs_characterization_test.dart @@ -2,7 +2,7 @@ import 'package:ack/ack.dart'; // These symbols are intentionally hidden from the public ack.dart export; // the internal characterization tests below reach into the source path. import 'package:ack/src/schemas/schema.dart' - show Refinement, SchemaOperation, WrapperSchema; + show AnyAckSchema, Refinement, SchemaOperation, WrapperSchema; import 'package:test/test.dart'; final class _Event { @@ -308,6 +308,23 @@ void main() { expect(parsed, 'fallback'); }); + test( + 'resolveDefaultWithContext validates default through inner schema', + () { + final schema = Ack.string().minLength(3).withDefault('x'); + final context = SchemaContext( + name: 'name', + schema: schema as AnyAckSchema, + value: null, + ); + + final result = schema.resolveDefaultWithContext(context); + + expect(result.isFail, true); + expect(result.getError().path, '#'); + }, + ); + test('encode(null) does NOT inject default', () { final schema = Ack.string().nullable().withDefault('fallback'); final String? encoded = schema.encode(null); diff --git a/packages/ack_firebase_ai/lib/ack_firebase_ai.dart b/packages/ack_firebase_ai/lib/ack_firebase_ai.dart index cc59ff42..a8d722a0 100644 --- a/packages/ack_firebase_ai/lib/ack_firebase_ai.dart +++ b/packages/ack_firebase_ai/lib/ack_firebase_ai.dart @@ -10,6 +10,6 @@ import 'package:ack/ack.dart'; extension FirebaseAiResponseJsonSchemaExtension on AckSchema { /// Converts this ACK schema for Firebase AI's `responseJsonSchema` field. Map toFirebaseAiResponseJsonSchema() { - return toSchemaModel().toJsonSchema(); + return toJsonSchema(); } } diff --git a/packages/ack_json_schema_builder/lib/ack_json_schema_builder.dart b/packages/ack_json_schema_builder/lib/ack_json_schema_builder.dart index c2a99112..d4ad46e6 100644 --- a/packages/ack_json_schema_builder/lib/ack_json_schema_builder.dart +++ b/packages/ack_json_schema_builder/lib/ack_json_schema_builder.dart @@ -29,7 +29,7 @@ extension JsonSchemaBuilderExtension on AckSchema { /// Returns a json_schema_builder [Schema] instance from ACK's generic /// Draft-7 JSON Schema map. jsb.Schema toJsonSchemaBuilder() { - return convertAckSchemaModelToBuilder(toSchemaModel()); + return jsb.Schema.fromMap(toJsonSchema()); } } From c61d10d956ff0b57ae095ffc4c7a5cb562c32a08 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Fri, 22 May 2026 15:54:03 -0400 Subject: [PATCH 17/53] fix(ack): let anyOf branches resolve defaults on null parse AnyOfSchema previously short-circuited null at the union level before trying members, so a DefaultSchema branch never got to supply its fallback. Parse now tries branches first when the input is null; the union-level null gate runs only as a fallback. Runtime validation and encode keep the original union-level gate. Also sweeps documentation for stale references caused by the typed-codec refactor: drops the removed strictParsing API, the deprecated tryParse/validate entries, and the primitive coercion language; clarifies that primitives are strict (and that integer and double do not overlap), documents Ack.number() alongside them, and updates transform examples to receive non-null runtime values. --- docs/api-reference/index.mdx | 31 +++--- docs/core-concepts/error-handling.mdx | 9 +- docs/core-concepts/schemas.mdx | 28 +++-- docs/core-concepts/validation.mdx | 102 ++++++++---------- .../ack/lib/src/schemas/any_of_schema.dart | 15 ++- .../schemas/any_of_null_and_default_test.dart | 13 +++ 6 files changed, 107 insertions(+), 91 deletions(-) diff --git a/docs/api-reference/index.mdx b/docs/api-reference/index.mdx index 4b0b428e..c91f6041 100644 --- a/docs/api-reference/index.mdx +++ b/docs/api-reference/index.mdx @@ -10,10 +10,11 @@ specific guides linked below. Entry point for creating schemas. See [Schema Types](../core-concepts/schemas.mdx). -- `Ack.string()`: Creates a `StringSchema` for validating strings. -- `Ack.integer()`: Creates an `IntegerSchema` for validating integers. -- `Ack.double()`: Creates a `DoubleSchema` for validating floating-point numbers. -- `Ack.boolean()`: Creates a `BooleanSchema` for validating booleans. +- `Ack.string()`: Creates a `StringSchema` for validating `String` values. +- `Ack.integer()`: Creates an `IntegerSchema` for validating `int` values. Rejects `double` (e.g. `42.0`). +- `Ack.double()`: Creates a `DoubleSchema` for validating `double` values. Rejects `int` (e.g. `42`). +- `Ack.number()`: Creates a `NumberSchema` for validating any `num` value (accepts both `int` and `double`). +- `Ack.boolean()`: Creates a `BooleanSchema` for validating `bool` values. - `Ack.list(AckSchema itemSchema)`: Creates a `ListSchema` for validating arrays. Nullable item schemas are not supported; make the list itself nullable instead. - `Ack.object(Map properties)`: Creates an `ObjectSchema` for validating objects. - `Ack.enumValues(List values)`: Creates an `EnumSchema` for Dart enum @@ -37,21 +38,21 @@ Base class for all schema types. ### Primary Validation Methods -- `SchemaResult safeParse(Object? data, {String? debugName})`: Validates the input data and returns a result. Never throws exceptions - returns `SchemaResult` with either success or failure. +- `SchemaResult safeParse(Object? data, {String? debugName})`: Validates the input data and returns a result. Never throws exceptions - returns `SchemaResult` with either success or failure. Use `safeParse(...).getOrNull()` to obtain the validated value with no exception. - `T? parse(Object? data, {String? debugName})`: Validates the input data and returns the value. Throws `AckException` if validation fails. -- `T? tryParse(Object? data, {String? debugName})`: **Deprecated** - Use `safeParse(...).getOrNull()` instead. -- `SchemaResult validate(Object? data, {String? debugName})`: **Deprecated** - Use `safeParse(...)` instead. +- `SchemaResult safeParseAs(Object? data, TOut Function(T?) map, {String? debugName})`: Parses and maps the validated value to another type. +- `TOut parseAs(Object? data, TOut Function(T?) map, {String? debugName})`: Throwing variant of `safeParseAs`. +- `SchemaResult safeEncode(T? value, {String? debugName})`: Encodes a runtime value back to the boundary representation. +- `Boundary? encode(T? value, {String? debugName})`: Throwing variant of `safeEncode`. ### Schema Modification Methods - `AckSchema nullable()`: Returns a new schema that also accepts `null` values. - `AckSchema optional({bool value = true})`: Returns a new schema marked as optional (for object fields). - `AckSchema describe(String description)`: Adds a description for documentation and JSON Schema generation. -- `AckSchema withDefault(T value)`: Sets a default value when input is `null`. -- `StringSchema strictParsing({bool value = true})`: Enables strict parsing for strings. -- `IntegerSchema strictParsing({bool value = true})`: Enables strict parsing for integers. -- `DoubleSchema strictParsing({bool value = true})`: Enables strict parsing for doubles. -- `BooleanSchema strictParsing({bool value = true})`: Enables strict parsing for booleans. +- `AckSchema withDefault(T value)`: Wraps the schema in a `DefaultSchema` that supplies `value` when the parse input is `null`. + +Primitive schemas (`StringSchema`, `IntegerSchema`, `DoubleSchema`, `NumberSchema`, `BooleanSchema`) are strict — they reject values whose Dart runtime type doesn't match. `IntegerSchema` and `DoubleSchema` do not overlap (`42.0` fails `Ack.integer()`, `42` fails `Ack.double()`); use `Ack.number()` when either is acceptable. For non-`num` boundary types (e.g. numeric strings), use [`transform`](../core-concepts/schemas.mdx#transformations) or [`codec`](#codecschemaboundary-runtime) to convert before validation. ### Custom Validation Methods @@ -113,9 +114,9 @@ Schema for validating strings. See [String Validation](../core-concepts/validati - `toLowerCase()`: Converts to lowercase - `toUpperCase()`: Converts to uppercase -## `IntegerSchema` / `DoubleSchema` (Number Schemas) +## `IntegerSchema` / `DoubleSchema` / `NumberSchema` (Number Schemas) -Schemas for validating numbers. See [Number Validation](../core-concepts/validation.mdx#number-constraints-int-and-double). +Schemas for validating numeric values. `IntegerSchema` only accepts `int`, `DoubleSchema` only accepts `double`, and `NumberSchema` accepts any `num` (either `int` or `double`). See [Number Validation](../core-concepts/validation.mdx#number-constraints-int-and-double). - `min(num limit)`: Minimum value (inclusive) - `max(num limit)`: Maximum value (inclusive) @@ -129,7 +130,7 @@ Schemas for validating numbers. See [Number Validation](../core-concepts/validat ## `BooleanSchema` -Schema for validating booleans. Validates `true` and `false` values, with optional type coercion from strings and numbers. +Schema for validating booleans. Validates `true` and `false` values strictly — non-boolean inputs are rejected. For boundary types that arrive as strings (e.g. `"true"`/`"false"`), use a `transform` or `codec` to convert before validation. ## `ListSchema` diff --git a/docs/core-concepts/error-handling.mdx b/docs/core-concepts/error-handling.mdx index 6fe2dd10..89e0e40f 100644 --- a/docs/core-concepts/error-handling.mdx +++ b/docs/core-concepts/error-handling.mdx @@ -168,13 +168,16 @@ if (result.isFail) { Occurs when a transformation function (from `.transform()`) throws an exception. +Transform callbacks receive the non-null validated runtime value; null handling is owned by the surrounding schema's `nullable`/`withDefault` configuration. A `SchemaTransformError` is raised when the callback itself throws — for example, when the input shape passes validation but the conversion fails: + ```dart final schema = Ack.string().transform((value) { - if (value == null) throw Exception('Cannot transform null'); - return value.toUpperCase(); + final parsed = int.tryParse(value); + if (parsed == null) throw FormatException('Not numeric: $value'); + return parsed; }); -final result = schema.safeParse(null); +final result = schema.safeParse('not-a-number'); if (result.isFail) { final error = result.getError() as SchemaTransformError; diff --git a/docs/core-concepts/schemas.mdx b/docs/core-concepts/schemas.mdx index f215f60a..07c9205c 100644 --- a/docs/core-concepts/schemas.mdx +++ b/docs/core-concepts/schemas.mdx @@ -38,12 +38,9 @@ if (result.isOk) { ### String ```dart -// Basic string +// Basic string — primitives are strict by default and reject non-string values final nameSchema = Ack.string(); -// Enable strict type checking (no coercion) -final strictNameSchema = Ack.string().strictParsing(); - // With constraints final usernameSchema = Ack.string() .minLength(3) @@ -67,17 +64,24 @@ final roleSchema = Ack.enumValues(Role.values); ### Number +Numeric schemas are strict about their Dart runtime type. `Ack.integer()` +rejects `double` values (even whole ones like `42.0`); `Ack.double()` rejects +`int` values. Use `Ack.number()` when either is acceptable. + ```dart -// Integer validation +// Integer validation (int only — 42.0 would fail) final ageSchema = Ack.integer() .min(0) .max(120); -// Double validation +// Double validation (double only — 42 would fail) final priceSchema = Ack.double() .positive() .multipleOf(0.5); // Use factors that avoid floating point rounding issues +// Either int or double +final amountSchema = Ack.number().positive(); + // Negative/positive final temperatureSchema = Ack.integer(); // Any integer final scoreSchema = Ack.double().positive(); // > 0 @@ -154,9 +158,10 @@ if (result.isOk) { Validate against multiple possible schemas: ```dart -// String or integer +// String or integer — primitive branches are strict, so the union won't +// silently coerce one into the other. final idSchema = Ack.anyOf([ - Ack.string().strictParsing(), + Ack.string(), Ack.integer(), ]); @@ -395,15 +400,16 @@ final orderSchema = Ack.object({ Transform validated data: ```dart -// Transform to uppercase -final upperSchema = Ack.string().transform((s) => s?.toUpperCase() ?? ''); +// Transform to uppercase. The callback receives the non-null validated +// runtime value; nullable handling happens on the surrounding schema. +final upperSchema = Ack.string().transform((s) => s.toUpperCase()); // Add computed fields final userWithAgeSchema = Ack.object({ 'name': Ack.string(), 'birthYear': Ack.integer(), }).transform((data) { - final birthYear = data!['birthYear'] as int; + final birthYear = data['birthYear'] as int; final age = DateTime.now().year - birthYear; return {...data, 'age': age}; }); diff --git a/docs/core-concepts/validation.mdx b/docs/core-concepts/validation.mdx index 50eef638..d4cb80a2 100644 --- a/docs/core-concepts/validation.mdx +++ b/docs/core-concepts/validation.mdx @@ -192,7 +192,7 @@ Ack.string().toUpperCase() ## Number Constraints (Int and Double) -Apply these to [`Ack.integer()`](./schemas.mdx#number) and [`Ack.double()`](./schemas.mdx#number) schemas. +Apply these to [`Ack.integer()`](./schemas.mdx#number), [`Ack.double()`](./schemas.mdx#number), or [`Ack.number()`](./schemas.mdx#number) schemas. ### `min(num limit)` Requires a value `>= limit` (inclusive). @@ -289,89 +289,71 @@ Requires all items to be unique. Uses deep structural equality, so nested maps/l Ack.list(Ack.string()).unique() ``` -## Strict Parsing +## Primitive Type Strictness -By default, Ack performs type coercion for primitive types. Use `.strictParsing()` to disable coercion and require exact type matches. +Primitive schemas (`Ack.string()`, `Ack.integer()`, `Ack.double()`, `Ack.number()`, `Ack.boolean()`) are strict: a value must already match the expected Dart runtime type. Mismatched inputs surface as a `TypeMismatchError` instead of being silently coerced. -### Default Behavior (Type Coercion Enabled) +Each schema maps to a specific runtime type: -Without strict parsing, Ack accepts compatible types and converts them: +| Schema | Accepted runtime type | Notes | +| ---------------- | --------------------- | ---------------------------------- | +| `Ack.string()` | `String` | rejects `num`, `bool`, etc. | +| `Ack.integer()` | `int` | rejects `double` (even `42.0`) | +| `Ack.double()` | `double` | rejects `int` (even `42`) | +| `Ack.number()` | `num` | accepts both `int` and `double` | +| `Ack.boolean()` | `bool` | rejects `"true"`, `1`, `0`, etc. | ```dart -// String schema accepts numbers and converts them final stringSchema = Ack.string(); -stringSchema.safeParse(123); // ✅ OK: converts to "123" -stringSchema.safeParse(true); // ✅ OK: converts to "true" -stringSchema.safeParse('hello'); // ✅ OK: already a string +stringSchema.safeParse('hello'); // ✅ OK +stringSchema.safeParse(123); // ❌ FAIL: TypeMismatchError +stringSchema.safeParse(true); // ❌ FAIL: TypeMismatchError -// Integer schema accepts numeric strings and converts them final intSchema = Ack.integer(); -intSchema.safeParse('42'); // ✅ OK: converts to 42 -intSchema.safeParse(42); // ✅ OK: already an integer -intSchema.safeParse(42.0); // ✅ OK: converts to 42 -``` - -### Strict Parsing Behavior +intSchema.safeParse(42); // ✅ OK +intSchema.safeParse('42'); // ❌ FAIL: TypeMismatchError +intSchema.safeParse(42.0); // ❌ FAIL: TypeMismatchError (double is not int) -With strict parsing enabled, only exact type matches are accepted: - -```dart -// String schema rejects non-strings -final strictStringSchema = Ack.string().strictParsing(); -strictStringSchema.safeParse('hello'); // ✅ OK: exact match -strictStringSchema.safeParse(123); // ❌ FAIL: TypeMismatchError -strictStringSchema.safeParse(true); // ❌ FAIL: TypeMismatchError +final doubleSchema = Ack.double(); +doubleSchema.safeParse(3.14); // ✅ OK +doubleSchema.safeParse(42); // ❌ FAIL: TypeMismatchError (int is not double) -// Integer schema rejects strings and doubles -final strictIntSchema = Ack.integer().strictParsing(); -strictIntSchema.safeParse(42); // ✅ OK: exact match -strictIntSchema.safeParse('42'); // ❌ FAIL: TypeMismatchError -strictIntSchema.safeParse(42.0); // ❌ FAIL: TypeMismatchError +final numberSchema = Ack.number(); +numberSchema.safeParse(42); // ✅ OK (int is num) +numberSchema.safeParse(3.14); // ✅ OK (double is num) +numberSchema.safeParse('42'); // ❌ FAIL: TypeMismatchError ``` -### When to Use Strict Parsing +Because `Ack.integer()` and `Ack.double()` do not overlap, use `Ack.number()` when a field may legitimately be either an int or a double. Reach for `transform`/`codec` only when the boundary value isn't already a `num` (for example, a numeric string). -Use strict parsing when you need to: - -- **Validate API requests** where types must match exactly -- **Distinguish between types** in union schemas (e.g., string "123" vs integer 123) -- **Enforce type discipline** in strongly typed contexts -- **Prevent unexpected conversions** that might hide bugs +This strictness makes `anyOf` and discriminated unions reliable — they can distinguish, for example, the string `"42"` from the integer `42` without configuration: ```dart -// Union type that distinguishes strings from numbers final stringOrNumber = Ack.anyOf([ - Ack.string().strictParsing(), // Only accepts actual strings - Ack.integer(), // Only accepts integers + Ack.string(), + Ack.integer(), ]); -stringOrNumber.safeParse('42'); // ✅ Matches string schema -stringOrNumber.safeParse(42); // ✅ Matches integer schema +stringOrNumber.safeParse('42'); // ✅ Matches string branch +stringOrNumber.safeParse(42); // ✅ Matches integer branch ``` -### Type Coercion Rules - -When strict parsing is disabled (default), Ack applies these coercion rules: +### Converting Boundary Types -**String Schema:** -- Numbers → string representation (`123` → `"123"`) -- Booleans → string representation (`true` → `"true"`) -- Strings → no conversion +When your boundary payload uses a different shape from your runtime model (for example, ISO strings → `DateTime`, or `"true"`/`"false"` → `bool`), express the conversion explicitly with [`transform`](./schemas.mdx#transformations) or a `codec`: -**Integer Schema:** -- Numeric strings → parsed integer (`"42"` → `42`) -- Doubles without decimals → converted (`42.0` → `42`) -- Integers → no conversion +```dart +// Boundary "true"/"false" string → runtime bool +final boolFromString = Ack.string() + .enumString(['true', 'false']) + .transform((s) => s == 'true'); -**Double Schema:** -- Numeric strings → parsed double (`"3.14"` → `3.14`) -- Integers → converted to double (`42` → `42.0`) -- Doubles → no conversion +boolFromString.safeParse('true'); // ✅ runtime value: true +boolFromString.safeParse('false'); // ✅ runtime value: false +boolFromString.safeParse(true); // ❌ FAIL: string schema rejects bool +``` -**Boolean Schema:** -- Strings "true"/"false" → corresponding boolean -- Numbers 1/0 → true/false -- Booleans → no conversion +Use `schema.codec(decode: ..., encode: ...)` when you also need a reversible encode path back to the boundary type. ## Combining Constraints diff --git a/packages/ack/lib/src/schemas/any_of_schema.dart b/packages/ack/lib/src/schemas/any_of_schema.dart index d4e4ed19..ec853150 100644 --- a/packages/ack/lib/src/schemas/any_of_schema.dart +++ b/packages/ack/lib/src/schemas/any_of_schema.dart @@ -46,8 +46,13 @@ final class AnyOfSchema extends AckSchema SchemaContext context, { required bool parse, }) { - final nullResult = handleNullInput(value, context); - if (nullResult != null) return nullResult; + // On parse we let branches see null first so a member's DefaultSchema or + // nullable branch can resolve before the union-level null gate rejects. + // Runtime validation keeps the union-level null gate intact. + if (!parse) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + } final errors = []; for (final (index, schema) in schemas.indexed) { @@ -67,6 +72,12 @@ final class AnyOfSchema extends AckSchema } errors.add(result.getError()); } + + if (parse && value == null) { + if (acceptsNull) return SchemaResult.ok(null); + return failNonNullable(context); + } + return SchemaResult.fail( SchemaNestedError(errors: errors, context: context), ); diff --git a/packages/ack/test/schemas/any_of_null_and_default_test.dart b/packages/ack/test/schemas/any_of_null_and_default_test.dart index 8726b33b..4e7c634a 100644 --- a/packages/ack/test/schemas/any_of_null_and_default_test.dart +++ b/packages/ack/test/schemas/any_of_null_and_default_test.dart @@ -139,6 +139,19 @@ void main() { expect(result.getOrThrow(), equals(defaultValue)); }); + test('should resolve branch default when input is null', () { + // Regression: a DefaultSchema branch should resolve its default on null + // before the union-level null gate rejects the value. + final schema = Ack.anyOf([ + Ack.string().withDefault('fallback'), + Ack.integer(), + ]); + + final result = schema.safeParse(null); + expect(result.isOk, isTrue); + expect(result.getOrThrow(), equals('fallback')); + }); + test('should fail when default is invalid for all member schemas', () { // Use a list as default - neither integer nor double accept lists const defaultValue = [1, 2, 3]; From 0efc6ee9c89c593d14f726495aca9fd35db5f048 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Mon, 25 May 2026 12:13:21 -0400 Subject: [PATCH 18/53] feat: add Flutter value codecs for ACK schemas including color, offset, and radius --- packages/flutter_codec/README.md | 6 + packages/flutter_codec/analysis_options.yaml | 9 + packages/flutter_codec/lib/flutter_codec.dart | 6 + packages/flutter_codec/lib/src/borders.dart | 87 ++++++++ packages/flutter_codec/lib/src/enums.dart | 144 ++++++++++++ .../flutter_codec/lib/src/primitives.dart | 3 + .../lib/src/primitives/color.dart | 92 ++++++++ .../lib/src/primitives/offset.dart | 12 + .../lib/src/primitives/radius.dart | 34 +++ packages/flutter_codec/pubspec.yaml | 21 ++ .../test/borders/borders_test.dart | 142 ++++++++++++ .../flutter_codec/test/enums/enums_test.dart | 205 ++++++++++++++++++ .../test/primitives/color_test.dart | 51 +++++ .../test/primitives/offset_test.dart | 22 ++ .../test/primitives/radius_test.dart | 45 ++++ .../test/support/json_safety.dart | 45 ++++ .../test/support/json_safety_test.dart | 48 ++++ pubspec.yaml | 2 + 18 files changed, 974 insertions(+) create mode 100644 packages/flutter_codec/README.md create mode 100644 packages/flutter_codec/analysis_options.yaml create mode 100644 packages/flutter_codec/lib/flutter_codec.dart create mode 100644 packages/flutter_codec/lib/src/borders.dart create mode 100644 packages/flutter_codec/lib/src/enums.dart create mode 100644 packages/flutter_codec/lib/src/primitives.dart create mode 100644 packages/flutter_codec/lib/src/primitives/color.dart create mode 100644 packages/flutter_codec/lib/src/primitives/offset.dart create mode 100644 packages/flutter_codec/lib/src/primitives/radius.dart create mode 100644 packages/flutter_codec/pubspec.yaml create mode 100644 packages/flutter_codec/test/borders/borders_test.dart create mode 100644 packages/flutter_codec/test/enums/enums_test.dart create mode 100644 packages/flutter_codec/test/primitives/color_test.dart create mode 100644 packages/flutter_codec/test/primitives/offset_test.dart create mode 100644 packages/flutter_codec/test/primitives/radius_test.dart create mode 100644 packages/flutter_codec/test/support/json_safety.dart create mode 100644 packages/flutter_codec/test/support/json_safety_test.dart diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md new file mode 100644 index 00000000..fdb702d8 --- /dev/null +++ b/packages/flutter_codec/README.md @@ -0,0 +1,6 @@ +# flutter_codec + +Flutter value codecs built on ACK schemas. + +Phase 1 includes enum schemas and the leaf `Color`, `Offset`, and `Radius` +codecs used by higher-level Flutter shape schemas. diff --git a/packages/flutter_codec/analysis_options.yaml b/packages/flutter_codec/analysis_options.yaml new file mode 100644 index 00000000..e147228d --- /dev/null +++ b/packages/flutter_codec/analysis_options.yaml @@ -0,0 +1,9 @@ +include: package:lints/recommended.yaml + +analyzer: + exclude: + - "**/*.g.dart" + language: + strict-casts: true + strict-inference: true + strict-raw-types: true diff --git a/packages/flutter_codec/lib/flutter_codec.dart b/packages/flutter_codec/lib/flutter_codec.dart new file mode 100644 index 00000000..bd13d681 --- /dev/null +++ b/packages/flutter_codec/lib/flutter_codec.dart @@ -0,0 +1,6 @@ +/// Flutter value codecs built on ACK schemas. +library; + +export 'src/borders.dart'; +export 'src/enums.dart'; +export 'src/primitives.dart'; diff --git a/packages/flutter_codec/lib/src/borders.dart b/packages/flutter_codec/lib/src/borders.dart new file mode 100644 index 00000000..064b810b --- /dev/null +++ b/packages/flutter_codec/lib/src/borders.dart @@ -0,0 +1,87 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' show BorderSide, BorderStyle, Color; + +import 'enums.dart' show borderStyleSchema; +import 'primitives/color.dart' show colorCodec; + +/// Named [BorderSide.strokeAlign] offsets, encoded as string aliases. +enum _StrokeAlign { inside, center, outside } + +/// Codec for [BorderSide.strokeAlign] values. +/// +/// Accepts the named aliases `"inside"`, `"center"`, and `"outside"` (mapping +/// to [BorderSide.strokeAlignInside], [BorderSide.strokeAlignCenter], and +/// [BorderSide.strokeAlignOutside]) as well as any finite number. Encoding +/// canonicalizes the three named offsets back to their aliases and emits any +/// other finite value as a number. +final strokeAlignCodec = Ack.codec( + input: Ack.anyOf([ + Ack.enumValues(_StrokeAlign.values), + Ack.number().refine( + (value) => value.isFinite, + message: 'Expected a finite number.', + ), + ]), + decode: _decodeStrokeAlign, + encode: _encodeStrokeAlign, +); + +double _decodeStrokeAlign(Object value) { + if (value is num) return value.toDouble(); + + return switch (value as _StrokeAlign) { + _StrokeAlign.inside => BorderSide.strokeAlignInside, + _StrokeAlign.center => BorderSide.strokeAlignCenter, + _StrokeAlign.outside => BorderSide.strokeAlignOutside, + }; +} + +Object _encodeStrokeAlign(double value) { + return switch (value) { + BorderSide.strokeAlignInside => _StrokeAlign.inside, + BorderSide.strokeAlignCenter => _StrokeAlign.center, + BorderSide.strokeAlignOutside => _StrokeAlign.outside, + _ => value, + }; +} + +/// Codec for [BorderSide], composing [colorCodec], [borderStyleSchema], and +/// [strokeAlignCodec]. +/// +/// Missing fields fall back to Flutter's [BorderSide] constructor defaults, so +/// `{}` decodes to `const BorderSide()`. Encoding always emits a full canonical +/// object with all four fields. +final borderSideCodec = Ack.object({ + 'color': colorCodec.withDefault(const Color(0xFF000000)), + 'width': _widthSchema().withDefault(1.0), + 'style': borderStyleSchema.withDefault(BorderStyle.solid), + 'strokeAlign': strokeAlignCodec.withDefault(BorderSide.strokeAlignInside), +}).model(decode: _decodeBorderSide, encode: _encodeBorderSide); + +NumberSchema _widthSchema() { + return Ack.number().refine( + (value) => value.isFinite && value >= 0, + message: 'Expected a finite, non-negative width.', + ); +} + +BorderSide _decodeBorderSide(JsonMap data) { + return BorderSide( + color: data['color']! as Color, + width: (data['width']! as num).toDouble(), + style: data['style']! as BorderStyle, + strokeAlign: data['strokeAlign']! as double, + ); +} + +// Returns runtime property values (Color, BorderStyle, double), not JSON. The +// object schema re-encodes each property through its own schema (colorCodec, +// borderStyleSchema, strokeAlignCodec) to produce the JSON-safe boundary. +JsonMap _encodeBorderSide(BorderSide value) { + return { + 'color': value.color, + 'width': value.width, + 'style': value.style, + 'strokeAlign': value.strokeAlign, + }; +} diff --git a/packages/flutter_codec/lib/src/enums.dart b/packages/flutter_codec/lib/src/enums.dart new file mode 100644 index 00000000..0ea440d4 --- /dev/null +++ b/packages/flutter_codec/lib/src/enums.dart @@ -0,0 +1,144 @@ +import 'dart:ui' show BoxHeightStyle, BoxWidthStyle; + +import 'package:ack/ack.dart'; +import 'package:flutter/foundation.dart' show Brightness, TargetPlatform; +import 'package:flutter/gestures.dart' show DragStartBehavior; +import 'package:flutter/material.dart' show MaterialTapTargetSize, ThemeMode; +import 'package:flutter/painting.dart' + show + Axis, + AxisDirection, + BlendMode, + BlurStyle, + BorderStyle, + BoxFit, + BoxShape, + Clip, + FilterQuality, + FontStyle, + ImageRepeat, + PaintingStyle, + PathFillType, + PlaceholderAlignment, + StrokeCap, + StrokeJoin, + TextAlign, + TextBaseline, + TextDecorationStyle, + TextDirection, + TextLeadingDistribution, + TextOverflow, + TextWidthBasis, + TileMode, + VerticalDirection; +import 'package:flutter/rendering.dart' + show + CrossAxisAlignment, + DecorationPosition, + FlexFit, + GrowthDirection, + HitTestBehavior, + MainAxisAlignment, + MainAxisSize, + ScrollDirection, + StackFit, + WrapAlignment, + WrapCrossAlignment; +import 'package:flutter/services.dart' show TextCapitalization; +import 'package:flutter/widgets.dart' show ScrollViewKeyboardDismissBehavior; + +final axisSchema = Ack.enumValues(Axis.values); + +final axisDirectionSchema = Ack.enumValues(AxisDirection.values); + +final blendModeSchema = Ack.enumValues(BlendMode.values); + +final blurStyleSchema = Ack.enumValues(BlurStyle.values); + +final borderStyleSchema = Ack.enumValues(BorderStyle.values); + +final boxFitSchema = Ack.enumValues(BoxFit.values); + +final boxHeightStyleSchema = Ack.enumValues(BoxHeightStyle.values); + +final boxShapeSchema = Ack.enumValues(BoxShape.values); + +final boxWidthStyleSchema = Ack.enumValues(BoxWidthStyle.values); + +final brightnessSchema = Ack.enumValues(Brightness.values); + +final clipSchema = Ack.enumValues(Clip.values); + +final crossAxisAlignmentSchema = Ack.enumValues(CrossAxisAlignment.values); + +final decorationPositionSchema = Ack.enumValues(DecorationPosition.values); + +final dragStartBehaviorSchema = Ack.enumValues(DragStartBehavior.values); + +final filterQualitySchema = Ack.enumValues(FilterQuality.values); + +final flexFitSchema = Ack.enumValues(FlexFit.values); + +final fontStyleSchema = Ack.enumValues(FontStyle.values); + +final growthDirectionSchema = Ack.enumValues(GrowthDirection.values); + +final hitTestBehaviorSchema = Ack.enumValues(HitTestBehavior.values); + +final imageRepeatSchema = Ack.enumValues(ImageRepeat.values); + +final mainAxisAlignmentSchema = Ack.enumValues(MainAxisAlignment.values); + +final mainAxisSizeSchema = Ack.enumValues(MainAxisSize.values); + +final materialTapTargetSizeSchema = Ack.enumValues( + MaterialTapTargetSize.values, +); + +final paintingStyleSchema = Ack.enumValues(PaintingStyle.values); + +final pathFillTypeSchema = Ack.enumValues(PathFillType.values); + +final placeholderAlignmentSchema = Ack.enumValues(PlaceholderAlignment.values); + +final scrollDirectionSchema = Ack.enumValues(ScrollDirection.values); + +final scrollViewKeyboardDismissBehaviorSchema = Ack.enumValues( + ScrollViewKeyboardDismissBehavior.values, +); + +final stackFitSchema = Ack.enumValues(StackFit.values); + +final strokeCapSchema = Ack.enumValues(StrokeCap.values); + +final strokeJoinSchema = Ack.enumValues(StrokeJoin.values); + +final targetPlatformSchema = Ack.enumValues(TargetPlatform.values); + +final textAlignSchema = Ack.enumValues(TextAlign.values); + +final textBaselineSchema = Ack.enumValues(TextBaseline.values); + +final textCapitalizationSchema = Ack.enumValues(TextCapitalization.values); + +final textDecorationStyleSchema = Ack.enumValues(TextDecorationStyle.values); + +final textDirectionSchema = Ack.enumValues(TextDirection.values); + +final textLeadingDistributionSchema = Ack.enumValues( + TextLeadingDistribution.values, +); + +final textOverflowSchema = Ack.enumValues(TextOverflow.values); + +final textWidthBasisSchema = Ack.enumValues(TextWidthBasis.values); + +final themeModeSchema = Ack.enumValues(ThemeMode.values); + +final tileModeSchema = Ack.enumValues(TileMode.values); + +final verticalDirectionSchema = Ack.enumValues(VerticalDirection.values); + +final wrapAlignmentSchema = Ack.enumValues(WrapAlignment.values); + +final wrapCrossAlignmentSchema = Ack.enumValues(WrapCrossAlignment.values); diff --git a/packages/flutter_codec/lib/src/primitives.dart b/packages/flutter_codec/lib/src/primitives.dart new file mode 100644 index 00000000..b2a11395 --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives.dart @@ -0,0 +1,3 @@ +export 'primitives/color.dart'; +export 'primitives/offset.dart'; +export 'primitives/radius.dart'; diff --git a/packages/flutter_codec/lib/src/primitives/color.dart b/packages/flutter_codec/lib/src/primitives/color.dart new file mode 100644 index 00000000..596e1cec --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/color.dart @@ -0,0 +1,92 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' show Color; + +final colorCodec = Ack.codec( + input: Ack.anyOf([ + Ack.string().matches(r'^#[0-9A-Fa-f]{6}$'), + Ack.string().matches(r'^#[0-9A-Fa-f]{8}$'), + Ack.string().matches(r'^rgb\(\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*\d{1,3}\s*\)$'), + Ack.string().matches( + r'^rgba\(\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*(?:0|1|0?\.\d+|1\.0+)\s*\)$', + ), + ]), + decode: (value) => _parseColor(value as String), + encode: _encodeColor, +); + +Color _parseColor(String value) { + if (value.startsWith('#')) { + return _parseHexColor(value); + } + if (value.startsWith('rgb(')) { + return _parseRgbColor(value); + } + if (value.startsWith('rgba(')) { + return _parseRgbaColor(value); + } + throw FormatException('Unsupported color format: $value'); +} + +Color _parseHexColor(String value) { + final hex = value.substring(1); + final argb = hex.length == 6 ? 'FF$hex' : hex; + return Color(int.parse(argb, radix: 16)); +} + +Color _parseRgbColor(String value) { + final channels = _parseChannelList(value, prefix: 'rgb(', count: 3); + return Color.fromARGB(0xFF, channels[0], channels[1], channels[2]); +} + +Color _parseRgbaColor(String value) { + final channels = _parseChannelList(value, prefix: 'rgba(', count: 4); + final alpha = channels[3]; + return Color.fromARGB(alpha, channels[0], channels[1], channels[2]); +} + +List _parseChannelList( + String value, { + required String prefix, + required int count, +}) { + final rawParts = value.substring(prefix.length, value.length - 1).split(','); + if (rawParts.length != count) { + throw FormatException('Expected $count color channels.'); + } + + final rgb = rawParts + .take(3) + .map((part) { + final channel = int.parse(part.trim()); + if (channel < 0 || channel > 255) { + throw FormatException('Color channel out of range: $channel'); + } + return channel; + }) + .toList(growable: false); + + if (count == 3) return rgb; + + final alpha = double.parse(rawParts[3].trim()); + if (alpha < 0 || alpha > 1) { + throw FormatException('Alpha channel out of range: $alpha'); + } + return [...rgb, (alpha * 255).round()]; +} + +Object _encodeColor(Color value) { + final argb = value.toARGB32(); + final alpha = (argb >> 24) & 0xFF; + final red = (argb >> 16) & 0xFF; + final green = (argb >> 8) & 0xFF; + final blue = argb & 0xFF; + + if (alpha == 0xFF) { + return '#${_hex2(red)}${_hex2(green)}${_hex2(blue)}'; + } + + return '#${_hex2(alpha)}${_hex2(red)}${_hex2(green)}${_hex2(blue)}'; +} + +String _hex2(int value) => + value.toRadixString(16).padLeft(2, '0').toUpperCase(); diff --git a/packages/flutter_codec/lib/src/primitives/offset.dart b/packages/flutter_codec/lib/src/primitives/offset.dart new file mode 100644 index 00000000..895d1a94 --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/offset.dart @@ -0,0 +1,12 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' show Offset; + +final offsetCodec = Ack.object({'x': Ack.number(), 'y': Ack.number()}) + .model( + decode: (data) { + final x = data['x']! as num; + final y = data['y']! as num; + return Offset(x.toDouble(), y.toDouble()); + }, + encode: (value) => {'x': value.dx, 'y': value.dy}, + ); diff --git a/packages/flutter_codec/lib/src/primitives/radius.dart b/packages/flutter_codec/lib/src/primitives/radius.dart new file mode 100644 index 00000000..3f71304e --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/radius.dart @@ -0,0 +1,34 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' show Radius; + +final radiusCodec = Ack.codec( + input: Ack.anyOf([ + _nonNegativeNumber(), + Ack.object({'x': _nonNegativeNumber(), 'y': _nonNegativeNumber()}), + ]), + decode: _decodeRadius, + encode: _encodeRadius, +); + +NumberSchema _nonNegativeNumber() { + return Ack.number().refine( + (value) => value >= 0, + message: 'Expected a non-negative number.', + ); +} + +Radius _decodeRadius(Object value) { + if (value is num) { + return Radius.circular(value.toDouble()); + } + + final map = value as JsonMap; + final x = map['x']! as num; + final y = map['y']! as num; + return Radius.elliptical(x.toDouble(), y.toDouble()); +} + +Object _encodeRadius(Radius value) { + if (value.x == value.y) return value.x; + return {'x': value.x, 'y': value.y}; +} diff --git a/packages/flutter_codec/pubspec.yaml b/packages/flutter_codec/pubspec.yaml new file mode 100644 index 00000000..58feb546 --- /dev/null +++ b/packages/flutter_codec/pubspec.yaml @@ -0,0 +1,21 @@ +name: flutter_codec +description: Flutter value codecs built on ACK schemas. +version: 0.1.0 +repository: https://github.com/btwld/ack +issue_tracker: https://github.com/btwld/ack/issues +resolution: workspace + +environment: + sdk: '>=3.8.0 <4.0.0' + flutter: '>=3.16.0' + +dependencies: + ack: ^1.0.0-beta.12-wip + flutter: + sdk: flutter + +dev_dependencies: + flutter_test: + sdk: flutter + lints: ^5.0.0 + test: ^1.25.15 diff --git a/packages/flutter_codec/test/borders/borders_test.dart b/packages/flutter_codec/test/borders/borders_test.dart new file mode 100644 index 00000000..e808682f --- /dev/null +++ b/packages/flutter_codec/test/borders/borders_test.dart @@ -0,0 +1,142 @@ +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('strokeAlignCodec decode', () { + const namedCases = [ + ('inside', BorderSide.strokeAlignInside), + ('center', BorderSide.strokeAlignCenter), + ('outside', BorderSide.strokeAlignOutside), + ]; + + for (final (input, expected) in namedCases) { + test('decodes "$input"', () { + expect(strokeAlignCodec.parse(input), expected); + }); + } + + test('decodes a double as itself', () { + expect(strokeAlignCodec.parse(0.5), 0.5); + }); + + test('decodes an int as a double', () { + expect(strokeAlignCodec.parse(2), 2.0); + }); + + test('decodes values beyond the named range', () { + expect(strokeAlignCodec.parse(-3.5), -3.5); + }); + }); + + group('strokeAlignCodec encode', () { + test('canonicalizes named offsets to aliases', () { + for (final (offset, alias) in const [ + (BorderSide.strokeAlignInside, 'inside'), + (BorderSide.strokeAlignCenter, 'center'), + (BorderSide.strokeAlignOutside, 'outside'), + ]) { + final encoded = strokeAlignCodec.encode(offset); + expect(encoded, alias); + expectJsonSafe(encoded); + } + }); + + test('encodes other finite values as numbers', () { + final encoded = strokeAlignCodec.encode(0.5); + expect(encoded, 0.5); + expectJsonSafe(encoded); + }); + }); + + group('strokeAlignCodec rejects invalid input', () { + test('rejects unknown strings', () { + expect(strokeAlignCodec.safeParse('diagonal').isFail, isTrue); + }); + + test('rejects non-finite numbers', () { + expect(strokeAlignCodec.safeParse(double.infinity).isFail, isTrue); + expect(strokeAlignCodec.safeParse(double.nan).isFail, isTrue); + }); + }); + + group('borderSideCodec decode', () { + test('parses an empty object as the default BorderSide', () { + expect(borderSideCodec.parse({}), const BorderSide()); + }); + + test('applies defaults to a partial object, decoding nested color', () { + expect( + borderSideCodec.parse({'color': '#2196F3'}), + const BorderSide(color: Color(0xFF2196F3)), + ); + }); + + test('parses a full object', () { + expect( + borderSideCodec.parse({ + 'color': '#FF0000', + 'width': 2.0, + 'style': 'none', + 'strokeAlign': 'outside', + }), + const BorderSide( + color: Color(0xFFFF0000), + width: 2, + style: BorderStyle.none, + strokeAlign: BorderSide.strokeAlignOutside, + ), + ); + }); + }); + + group('borderSideCodec encode', () { + test('emits a full canonical object including defaults', () { + final encoded = borderSideCodec.encode(const BorderSide()); + expect(encoded, { + 'color': '#000000', + 'width': 1.0, + 'style': 'solid', + 'strokeAlign': 'inside', + }); + expectJsonSafe(encoded); + }); + + test('encodes a customized BorderSide', () { + final encoded = borderSideCodec.encode( + const BorderSide( + color: Color(0xFFFF0000), + width: 2, + style: BorderStyle.none, + strokeAlign: BorderSide.strokeAlignCenter, + ), + ); + expect(encoded, { + 'color': '#FF0000', + 'width': 2.0, + 'style': 'none', + 'strokeAlign': 'center', + }); + expectJsonSafe(encoded); + }); + }); + + group('borderSideCodec rejects invalid input', () { + const invalidCases = { + 'invalid color': {'color': 'not-a-color'}, + 'negative width': {'width': -1}, + 'non-finite width': {'width': double.infinity}, + 'invalid style': {'style': 'dotted'}, + 'invalid strokeAlign': {'strokeAlign': 'diagonal'}, + 'extra property': {'unexpected': true}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(borderSideCodec.safeParse(input).isFail, isTrue); + }); + }); + }); +} diff --git a/packages/flutter_codec/test/enums/enums_test.dart b/packages/flutter_codec/test/enums/enums_test.dart new file mode 100644 index 00000000..8c1ab56e --- /dev/null +++ b/packages/flutter_codec/test/enums/enums_test.dart @@ -0,0 +1,205 @@ +import 'dart:ui'; + +import 'package:ack/ack.dart'; +import 'package:flutter/gestures.dart'; +import 'package:flutter/material.dart'; +import 'package:flutter/rendering.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('enum schemas', () { + for (final entry in _registry) { + group(entry.name, () { + test('round-trips every enum value', () { + for (final value in entry.values) { + final encoded = entry.encode(value); + expect(encoded, value.name); + expectJsonSafe(encoded); + expect(entry.parse(value.name), value); + } + }); + + test('rejects unknown strings', () { + expect(entry.rejects('__nope__'), isTrue); + }); + }); + } + }); +} + +final _registry = <_EnumCase>[ + _EnumCase('Axis', axisSchema, Axis.values), + _EnumCase( + 'AxisDirection', + axisDirectionSchema, + AxisDirection.values, + ), + _EnumCase('BlendMode', blendModeSchema, BlendMode.values), + _EnumCase('BlurStyle', blurStyleSchema, BlurStyle.values), + _EnumCase('BorderStyle', borderStyleSchema, BorderStyle.values), + _EnumCase('BoxFit', boxFitSchema, BoxFit.values), + _EnumCase( + 'BoxHeightStyle', + boxHeightStyleSchema, + BoxHeightStyle.values, + ), + _EnumCase('BoxShape', boxShapeSchema, BoxShape.values), + _EnumCase( + 'BoxWidthStyle', + boxWidthStyleSchema, + BoxWidthStyle.values, + ), + _EnumCase('Brightness', brightnessSchema, Brightness.values), + _EnumCase('Clip', clipSchema, Clip.values), + _EnumCase( + 'CrossAxisAlignment', + crossAxisAlignmentSchema, + CrossAxisAlignment.values, + ), + _EnumCase( + 'DecorationPosition', + decorationPositionSchema, + DecorationPosition.values, + ), + _EnumCase( + 'DragStartBehavior', + dragStartBehaviorSchema, + DragStartBehavior.values, + ), + _EnumCase( + 'FilterQuality', + filterQualitySchema, + FilterQuality.values, + ), + _EnumCase('FlexFit', flexFitSchema, FlexFit.values), + _EnumCase('FontStyle', fontStyleSchema, FontStyle.values), + _EnumCase( + 'GrowthDirection', + growthDirectionSchema, + GrowthDirection.values, + ), + _EnumCase( + 'HitTestBehavior', + hitTestBehaviorSchema, + HitTestBehavior.values, + ), + _EnumCase('ImageRepeat', imageRepeatSchema, ImageRepeat.values), + _EnumCase( + 'MainAxisAlignment', + mainAxisAlignmentSchema, + MainAxisAlignment.values, + ), + _EnumCase( + 'MainAxisSize', + mainAxisSizeSchema, + MainAxisSize.values, + ), + _EnumCase( + 'MaterialTapTargetSize', + materialTapTargetSizeSchema, + MaterialTapTargetSize.values, + ), + _EnumCase( + 'PaintingStyle', + paintingStyleSchema, + PaintingStyle.values, + ), + _EnumCase( + 'PathFillType', + pathFillTypeSchema, + PathFillType.values, + ), + _EnumCase( + 'PlaceholderAlignment', + placeholderAlignmentSchema, + PlaceholderAlignment.values, + ), + _EnumCase( + 'ScrollDirection', + scrollDirectionSchema, + ScrollDirection.values, + ), + _EnumCase( + 'ScrollViewKeyboardDismissBehavior', + scrollViewKeyboardDismissBehaviorSchema, + ScrollViewKeyboardDismissBehavior.values, + ), + _EnumCase('StackFit', stackFitSchema, StackFit.values), + _EnumCase('StrokeCap', strokeCapSchema, StrokeCap.values), + _EnumCase('StrokeJoin', strokeJoinSchema, StrokeJoin.values), + _EnumCase( + 'TargetPlatform', + targetPlatformSchema, + TargetPlatform.values, + ), + _EnumCase('TextAlign', textAlignSchema, TextAlign.values), + _EnumCase( + 'TextBaseline', + textBaselineSchema, + TextBaseline.values, + ), + _EnumCase( + 'TextCapitalization', + textCapitalizationSchema, + TextCapitalization.values, + ), + _EnumCase( + 'TextDecorationStyle', + textDecorationStyleSchema, + TextDecorationStyle.values, + ), + _EnumCase( + 'TextDirection', + textDirectionSchema, + TextDirection.values, + ), + _EnumCase( + 'TextLeadingDistribution', + textLeadingDistributionSchema, + TextLeadingDistribution.values, + ), + _EnumCase( + 'TextOverflow', + textOverflowSchema, + TextOverflow.values, + ), + _EnumCase( + 'TextWidthBasis', + textWidthBasisSchema, + TextWidthBasis.values, + ), + _EnumCase('ThemeMode', themeModeSchema, ThemeMode.values), + _EnumCase('TileMode', tileModeSchema, TileMode.values), + _EnumCase( + 'VerticalDirection', + verticalDirectionSchema, + VerticalDirection.values, + ), + _EnumCase( + 'WrapAlignment', + wrapAlignmentSchema, + WrapAlignment.values, + ), + _EnumCase( + 'WrapCrossAlignment', + wrapCrossAlignmentSchema, + WrapCrossAlignment.values, + ), +]; + +final class _EnumCase { + const _EnumCase(this.name, this.schema, this.values); + + final String name; + final EnumSchema schema; + final List values; + + String? encode(Enum value) => schema.encode(value as T); + + T? parse(String value) => schema.parse(value); + + bool rejects(String value) => schema.safeParse(value).isFail; +} diff --git a/packages/flutter_codec/test/primitives/color_test.dart b/packages/flutter_codec/test/primitives/color_test.dart new file mode 100644 index 00000000..16bc306e --- /dev/null +++ b/packages/flutter_codec/test/primitives/color_test.dart @@ -0,0 +1,51 @@ +import 'dart:ui'; + +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('colorCodec decode', () { + const cases = [ + ('#2196F3', Color(0xFF2196F3)), + ('#802196F3', Color(0x802196F3)), + ('rgb(33, 150, 243)', Color(0xFF2196F3)), + ('rgba(33, 150, 243, 0.5)', Color(0x802196F3)), + ]; + + for (final (input, expected) in cases) { + test(input, () { + expect(colorCodec.parse(input), expected); + }); + } + }); + + group('colorCodec encode', () { + test('canonicalizes opaque colors to #RRGGBB', () { + final encoded = colorCodec.encode(const Color(0xFF2196F3)); + expect(encoded, '#2196F3'); + expectJsonSafe(encoded); + }); + + test('canonicalizes translucent colors to #AARRGGBB', () { + final encoded = colorCodec.encode(const Color(0x802196F3)); + expect(encoded, '#802196F3'); + expectJsonSafe(encoded); + }); + }); + + group('colorCodec rejects invalid input', () { + for (final input in [ + '#2196F', + '#GG96F3', + 'rgb(256, 150, 243)', + 'rgba(33, 150, 243, 1.5)', + 'hsl(207, 90%, 54%)', + ]) { + test(input, () { + expect(colorCodec.safeParse(input).isFail, isTrue); + }); + } + }); +} diff --git a/packages/flutter_codec/test/primitives/offset_test.dart b/packages/flutter_codec/test/primitives/offset_test.dart new file mode 100644 index 00000000..6acedbba --- /dev/null +++ b/packages/flutter_codec/test/primitives/offset_test.dart @@ -0,0 +1,22 @@ +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('offsetCodec', () { + test('decodes x and y into an Offset', () { + expect(offsetCodec.parse({'x': 12, 'y': 4.5}), const Offset(12, 4.5)); + }); + + test('encodes Offset as x and y', () { + final encoded = offsetCodec.encode(const Offset(12, 4.5)); + expect(encoded, {'x': 12.0, 'y': 4.5}); + expectJsonSafe(encoded); + }); + + test('rejects missing coordinates', () { + expect(offsetCodec.safeParse({'x': 12}).isFail, isTrue); + }); + }); +} diff --git a/packages/flutter_codec/test/primitives/radius_test.dart b/packages/flutter_codec/test/primitives/radius_test.dart new file mode 100644 index 00000000..f541a106 --- /dev/null +++ b/packages/flutter_codec/test/primitives/radius_test.dart @@ -0,0 +1,45 @@ +import 'dart:ui'; + +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('radiusCodec decode', () { + test('decodes a number as a circular radius', () { + expect(radiusCodec.parse(8), const Radius.circular(8)); + }); + + test('decodes x and y as an elliptical radius', () { + expect( + radiusCodec.parse({'x': 8, 'y': 12.5}), + const Radius.elliptical(8, 12.5), + ); + }); + }); + + group('radiusCodec encode', () { + test('canonicalizes circular radii to a number', () { + final encoded = radiusCodec.encode(const Radius.circular(8)); + expect(encoded, 8.0); + expectJsonSafe(encoded); + }); + + test('encodes elliptical radii as x and y', () { + final encoded = radiusCodec.encode(const Radius.elliptical(8, 12.5)); + expect(encoded, {'x': 8.0, 'y': 12.5}); + expectJsonSafe(encoded); + }); + }); + + group('radiusCodec rejects invalid input', () { + test('rejects negative circular radii', () { + expect(radiusCodec.safeParse(-1).isFail, isTrue); + }); + + test('rejects negative elliptical coordinates', () { + expect(radiusCodec.safeParse({'x': 1, 'y': -1}).isFail, isTrue); + }); + }); +} diff --git a/packages/flutter_codec/test/support/json_safety.dart b/packages/flutter_codec/test/support/json_safety.dart new file mode 100644 index 00000000..f4c4bd70 --- /dev/null +++ b/packages/flutter_codec/test/support/json_safety.dart @@ -0,0 +1,45 @@ +import 'dart:convert'; + +import 'package:flutter_test/flutter_test.dart'; + +/// Returns the path of the first non-JSON-safe value in [value], or null when +/// the whole structure is JSON-safe. Mirrors ack's `_jsonSafeOrNull` +/// (packages/ack/lib/src/schemas/schema.dart): JSON values are null, a finite +/// num, a bool, or a String; JSON collections are Lists of JSON values or +/// `Map`, recursively. +String? jsonSafetyViolation(Object? value, [String path = r'$']) { + if (value == null || value is bool || value is String) return null; + if (value is num) { + return value.isFinite ? null : '$path: non-finite number ($value)'; + } + if (value is List) { + for (var i = 0; i < value.length; i++) { + final violation = jsonSafetyViolation(value[i], '$path[$i]'); + if (violation != null) return violation; + } + return null; + } + if (value is Map) { + for (final entry in value.entries) { + if (entry.key is! String) { + return '$path: non-string key (${entry.key.runtimeType})'; + } + final violation = jsonSafetyViolation(entry.value, '$path.${entry.key}'); + if (violation != null) return violation; + } + return null; + } + + return '$path: non-JSON value of type ${value.runtimeType}'; +} + +/// Asserts [value] is composed solely of JSON values/collections and survives +/// a real `jsonEncode` round-trip. +void expectJsonSafe(Object? value) { + expect( + jsonSafetyViolation(value), + isNull, + reason: 'Encoded output is not JSON-safe', + ); + expect(() => jsonEncode(value), returnsNormally); +} diff --git a/packages/flutter_codec/test/support/json_safety_test.dart b/packages/flutter_codec/test/support/json_safety_test.dart new file mode 100644 index 00000000..dccae1c0 --- /dev/null +++ b/packages/flutter_codec/test/support/json_safety_test.dart @@ -0,0 +1,48 @@ +import 'package:flutter_test/flutter_test.dart'; + +import 'json_safety.dart'; + +void main() { + group('jsonSafetyViolation accepts JSON values', () { + for (final value in [ + null, + true, + 'text', + 1, + 1.5, + [1, 'a', null], + { + 'k': [1, true], + 'nested': {'x': 2.0}, + }, + ]) { + test('$value', () { + expect(jsonSafetyViolation(value), isNull); + expectJsonSafe(value); + }); + } + }); + + group('jsonSafetyViolation flags non-JSON content', () { + test('reports the path of a leaked runtime object', () { + final violation = jsonSafetyViolation({'color': Object()}); + expect(violation, r'$.color: non-JSON value of type Object'); + }); + + test('rejects non-finite numbers', () { + expect(jsonSafetyViolation(double.infinity), isNotNull); + expect(jsonSafetyViolation(double.nan), isNotNull); + }); + + test('rejects non-string map keys', () { + expect(jsonSafetyViolation({1: 'a'}), isNotNull); + }); + + test('expectJsonSafe fails when a runtime object leaks', () { + expect( + () => expectJsonSafe({'color': Object()}), + throwsA(isA()), + ); + }); + }); +} diff --git a/pubspec.yaml b/pubspec.yaml index a7851dbf..e4beb9c8 100644 --- a/pubspec.yaml +++ b/pubspec.yaml @@ -10,6 +10,7 @@ workspace: - packages/ack_annotations - packages/ack_generator - packages/ack_firebase_ai + - packages/flutter_codec - packages/ack_json_schema_builder - example @@ -54,6 +55,7 @@ melos: - ack - ack_generator - ack_firebase_ai + - flutter_codec - ack_json_schema_builder - ack_example - ack_annotations From 14746f5694e8772b30172c638f73c05ff5f398de Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 12:03:35 -0400 Subject: [PATCH 19/53] feat(ack): add Ack.enumCodec for uniform CodecSchema enums Returns CodecSchema wrapping EnumSchema with identity decode/encode. Use when downstream code expects every value-shape to be a CodecSchema (e.g. a registry of codecs across many value shapes). The underlying EnumSchema still does the String <-> .name mapping. --- docs/api-reference/index.mdx | 5 ++ packages/ack/CHANGELOG.md | 8 ++++ packages/ack/lib/src/ack.dart | 19 ++++++++ .../typed_codecs_characterization_test.dart | 48 +++++++++++++++++++ 4 files changed, 80 insertions(+) diff --git a/docs/api-reference/index.mdx b/docs/api-reference/index.mdx index c91f6041..ea5b2459 100644 --- a/docs/api-reference/index.mdx +++ b/docs/api-reference/index.mdx @@ -20,6 +20,11 @@ Entry point for creating schemas. See [Schema Types](../core-concepts/schemas.md - `Ack.enumValues(List values)`: Creates an `EnumSchema` for Dart enum types. Accepts enum instances, string names, or indices. **Preferred over `enumString` when a Dart enum exists.** +- `Ack.enumCodec(List values)`: Like `enumValues`, but returns a + `CodecSchema` instead of an `EnumSchema`. Use this when + downstream code expects every value-shape to be a `CodecSchema` (e.g. a + registry of codecs). The decode and encode functions are identity — the + underlying `EnumSchema` still maps between `T` and the enum's `.name`. - `Ack.enumString(List values)`: Creates a `StringSchema` constrained to the given values. For ad-hoc string lists without a backing Dart enum. - `Ack.anyOf(List schemas)`: Creates an `AnyOfSchema` for union types. diff --git a/packages/ack/CHANGELOG.md b/packages/ack/CHANGELOG.md index ca7157c0..15306f76 100644 --- a/packages/ack/CHANGELOG.md +++ b/packages/ack/CHANGELOG.md @@ -7,6 +7,14 @@ `AckSchemaModel` variants and canonical `AckSchema.toSchemaModel()` adapter conversion. +### Added + +* `Ack.enumCodec(List values)` returns a + `CodecSchema` wrapping `EnumSchema`. Use this when downstream + code expects every value-shape to be a `CodecSchema` (e.g. a registry of + codecs). Decode/encode are identity since `EnumSchema` already maps between + `T` and the enum's `.name`. + ### Changed * Project discriminated schemas through union-owned discriminator branches. diff --git a/packages/ack/lib/src/ack.dart b/packages/ack/lib/src/ack.dart index 3f870eae..561983bd 100644 --- a/packages/ack/lib/src/ack.dart +++ b/packages/ack/lib/src/ack.dart @@ -1,6 +1,7 @@ import 'common_types.dart'; import 'constraints/pattern_constraint.dart'; import 'constraints/string_literal_constraint.dart'; +import 'schemas/extensions/ack_schema_extensions.dart'; import 'schemas/extensions/string_schema_extensions.dart'; import 'schemas/schema.dart'; @@ -53,6 +54,24 @@ final class Ack { static EnumSchema enumValues(List values) => EnumSchema(values: values); + /// Creates a bidirectional codec for Dart enums, with boundary `String` and + /// runtime [T]. + /// + /// This is a thin wrapper around [enumValues] that returns a + /// [CodecSchema] instead of an [EnumSchema], for uniform composition with + /// other codecs (e.g. when assembling a registry of `CodecSchema` values + /// for many value shapes). The decode and encode functions are identity + /// because [EnumSchema] already maps between [T] and the enum's `.name`. + /// + /// Prefer [enumValues] when you need [EnumSchema]-specific affordances + /// (e.g. adding constraints, copying with new flags). Prefer [enumCodec] + /// when downstream code expects every value-shape to be a `CodecSchema`. + static CodecSchema enumCodec(List values) => + enumValues(values).codec( + decode: (value) => value, + encode: (value) => value, + ); + /// Creates a string schema that only accepts one of the given [values]. static StringSchema enumString(List values) => string().withConstraint(PatternConstraint.enumString(values)); diff --git a/packages/ack/test/typed_codecs_characterization_test.dart b/packages/ack/test/typed_codecs_characterization_test.dart index d5099d8a..676d863b 100644 --- a/packages/ack/test/typed_codecs_characterization_test.dart +++ b/packages/ack/test/typed_codecs_characterization_test.dart @@ -301,6 +301,54 @@ void main() { }); }); + group('Ack.enumCodec', () { + test('returns a CodecSchema with String boundary and enum runtime', () { + final schema = Ack.enumCodec(_Role.values); + expect(schema, isA>()); + }); + + test('parses .name into the typed enum value', () { + final schema = Ack.enumCodec(_Role.values); + // Static-type check: boundary is String, runtime is _Role. + // The String → _Role mapping is performed inside the underlying + // EnumSchema (via `.name` lookup), not by the codec's identity + // decoder. + const String boundaryInput = 'admin'; + final _Role? parsed = schema.parse(boundaryInput); + expect(parsed, _Role.admin); + expect(schema.parse('member'), _Role.member); + }); + + test('encodes the enum value back to .name', () { + final schema = Ack.enumCodec(_Role.values); + // Static-type check: encoder takes _Role, returns String. + const _Role runtimeValue = _Role.admin; + final String? encoded = schema.encode(runtimeValue); + expect(encoded, 'admin'); + expect(schema.encode(_Role.member), 'member'); + }); + + test('round-trips through the codec without losing identity', () { + final schema = Ack.enumCodec(_Role.values); + for (final value in _Role.values) { + final encoded = schema.encode(value); + expect(schema.parse(encoded), value); + } + }); + + test('rejects strings outside the allowed values', () { + final schema = Ack.enumCodec(_Role.values); + final result = schema.safeParse('owner'); + expect(result.isFail, true); + }); + + test('rejects non-string boundary input', () { + final schema = Ack.enumCodec(_Role.values); + final result = schema.safeParse(42); + expect(result.isFail, true); + }); + }); + group('DefaultSchema wrapper', () { test('parse(null) returns runtime default', () { final schema = Ack.string().withDefault('fallback'); From 46503d4f26bf25e8939f3112f5ecd4b8e9f78ea5 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 12:58:54 -0400 Subject: [PATCH 20/53] feat(ack)!: reject non-finite numeric schemas Make Ack.double() and Ack.number() reject NaN and infinities by default, add fluent NumberSchema numeric constraints, and export Ack.number() as a JSON Schema number. BREAKING CHANGE: Ack.double() and Ack.number() now reject non-finite double values during parse and encode. --- docs/api-reference/index.mdx | 7 +- docs/core-concepts/schemas.mdx | 3 +- docs/core-concepts/validation.mdx | 16 +++- docs/guides/json-schema-integration.mdx | 10 +-- .../constraints/number_finite_constraint.dart | 9 ++- .../ack_schema_model_builder.dart | 16 ++-- .../extensions/numeric_extensions.dart | 48 +++++++++++- packages/ack/lib/src/schemas/num_schema.dart | 20 +++++ packages/ack/lib/src/schemas/schema.dart | 8 +- .../comprehensive_json_schema_test.dart | 45 +++++++++++ .../extensions/numeric_extensions_test.dart | 75 +++++++++++++++++++ 11 files changed, 232 insertions(+), 25 deletions(-) diff --git a/docs/api-reference/index.mdx b/docs/api-reference/index.mdx index ea5b2459..cbe0f95f 100644 --- a/docs/api-reference/index.mdx +++ b/docs/api-reference/index.mdx @@ -121,7 +121,10 @@ Schema for validating strings. See [String Validation](../core-concepts/validati ## `IntegerSchema` / `DoubleSchema` / `NumberSchema` (Number Schemas) -Schemas for validating numeric values. `IntegerSchema` only accepts `int`, `DoubleSchema` only accepts `double`, and `NumberSchema` accepts any `num` (either `int` or `double`). See [Number Validation](../core-concepts/validation.mdx#number-constraints-int-and-double). +Schemas for validating numeric values. `IntegerSchema` only accepts `int`, +`DoubleSchema` only accepts `double`, and `NumberSchema` accepts any `num` +(either `int` or `double`). `DoubleSchema` and `NumberSchema` reject non-finite +values by default. See [Number Validation](../core-concepts/validation.mdx#number-constraints). - `min(num limit)`: Minimum value (inclusive) - `max(num limit)`: Maximum value (inclusive) @@ -130,7 +133,7 @@ Schemas for validating numeric values. `IntegerSchema` only accepts `int`, `Doub - `positive()`: Must be greater than 0 - `negative()`: Must be less than 0 - `multipleOf(num factor)`: Must be a multiple of the factor -- `finite()`: Must be finite (DoubleSchema only) +- `finite()`: Must be finite (DoubleSchema and NumberSchema; already the default) - `safe()`: Must be within safe integer range (IntegerSchema only) ## `BooleanSchema` diff --git a/docs/core-concepts/schemas.mdx b/docs/core-concepts/schemas.mdx index 07c9205c..6652739e 100644 --- a/docs/core-concepts/schemas.mdx +++ b/docs/core-concepts/schemas.mdx @@ -66,7 +66,8 @@ final roleSchema = Ack.enumValues(Role.values); Numeric schemas are strict about their Dart runtime type. `Ack.integer()` rejects `double` values (even whole ones like `42.0`); `Ack.double()` rejects -`int` values. Use `Ack.number()` when either is acceptable. +`int` values. Use `Ack.number()` when either is acceptable. `Ack.double()` and +`Ack.number()` reject non-finite values (`NaN` and infinities) by default. ```dart // Integer validation (int only — 42.0 would fail) diff --git a/docs/core-concepts/validation.mdx b/docs/core-concepts/validation.mdx index d4cb80a2..be3f838d 100644 --- a/docs/core-concepts/validation.mdx +++ b/docs/core-concepts/validation.mdx @@ -190,7 +190,7 @@ Ack.string().toUpperCase() // "hello" → "HELLO" ``` -## Number Constraints (Int and Double) +## Number Constraints Apply these to [`Ack.integer()`](./schemas.mdx#number), [`Ack.double()`](./schemas.mdx#number), or [`Ack.number()`](./schemas.mdx#number) schemas. @@ -199,6 +199,7 @@ Requires a value `>= limit` (inclusive). ```dart Ack.integer().min(0) // >= 0 Ack.double().min(0.0) // >= 0.0 +Ack.number().min(0) // >= 0 ``` ### `max(num limit)` @@ -206,6 +207,7 @@ Requires a value `<= limit` (inclusive). ```dart Ack.integer().max(100) // <= 100 Ack.double().max(100.0) // <= 100.0 +Ack.number().max(100) // <= 100 ``` ### `greaterThan(num limit)` @@ -213,6 +215,7 @@ Requires a value strictly `> limit` (exclusive). ```dart Ack.integer().greaterThan(0) // > 0 Ack.double().greaterThan(0.0) // > 0.0 +Ack.number().greaterThan(0) // > 0 ``` ### `lessThan(num limit)` @@ -220,6 +223,7 @@ Requires a value strictly `< limit` (exclusive). ```dart Ack.integer().lessThan(100) // < 100 Ack.double().lessThan(100.0) // < 100.0 +Ack.number().lessThan(100) // < 100 ``` ### `multipleOf(num factor)` @@ -227,6 +231,7 @@ Requires a value that is a multiple of `factor`. ```dart Ack.integer().multipleOf(5) // Must be divisible by 5 Ack.double().multipleOf(0.5) // Use factors that avoid floating point rounding issues +Ack.number().multipleOf(0.5) ``` ### `positive()` @@ -234,6 +239,7 @@ Requires a value greater than 0. ```dart Ack.integer().positive() // > 0 Ack.double().positive() // > 0.0 +Ack.number().positive() // > 0 ``` ### `negative()` @@ -241,6 +247,7 @@ Requires a value less than 0. ```dart Ack.integer().negative() // < 0 Ack.double().negative() // < 0.0 +Ack.number().negative() // < 0 ``` ### `safe()` (Integer only) @@ -249,10 +256,13 @@ Requires an integer within JavaScript's safe range (`-2^53+1` to `2^53-1`). Ack.integer().safe() ``` -### `finite()` (Double only) -Requires a finite number (rejects `infinity` and `NaN`). +### `finite()` +Requires a finite number (rejects `infinity` and `NaN`). `Ack.double()` and +`Ack.number()` already enforce this by default; the method is available for +explicitness and API symmetry. ```dart Ack.double().finite() +Ack.number().finite() ``` ## List Constraints diff --git a/docs/guides/json-schema-integration.mdx b/docs/guides/json-schema-integration.mdx index f63aac98..6aeab456 100644 --- a/docs/guides/json-schema-integration.mdx +++ b/docs/guides/json-schema-integration.mdx @@ -155,11 +155,11 @@ Ack attempts to map its [built-in constraints](../core-concepts/validation.mdx) | [`ipv4()`](../core-concepts/validation.mdx#string-constraints) | `format: ipv4` | String | | [`ipv6()`](../core-concepts/validation.mdx#string-constraints) | `format: ipv6` | String | | [`enumString([...])`](../core-concepts/validation.mdx#string-constraints) | `enum: [...]` | String | -| [`min(n)`](../core-concepts/validation.mdx#number-constraints-int-and-double) | `minimum: n` | Number (int/double) | -| [`max(n)`](../core-concepts/validation.mdx#number-constraints-int-and-double) | `maximum: n` | Number (int/double) | -| [`greaterThan(n)`](../core-concepts/validation.mdx#number-constraints-int-and-double) | `exclusiveMinimum: n` | Number (exclusive) | -| [`lessThan(n)`](../core-concepts/validation.mdx#number-constraints-int-and-double) | `exclusiveMaximum: n` | Number (exclusive) | -| [`multipleOf(n)`](../core-concepts/validation.mdx#number-constraints-int-and-double) | `multipleOf: n` | Number (int/double) | +| [`min(n)`](../core-concepts/validation.mdx#number-constraints) | `minimum: n` | Number | +| [`max(n)`](../core-concepts/validation.mdx#number-constraints) | `maximum: n` | Number | +| [`greaterThan(n)`](../core-concepts/validation.mdx#number-constraints) | `exclusiveMinimum: n` | Number (exclusive) | +| [`lessThan(n)`](../core-concepts/validation.mdx#number-constraints) | `exclusiveMaximum: n` | Number (exclusive) | +| [`multipleOf(n)`](../core-concepts/validation.mdx#number-constraints) | `multipleOf: n` | Number | | [`minLength(n)`](../core-concepts/validation.mdx#list-constraints) | `minItems: n` | List (array) | | [`maxLength(n)`](../core-concepts/validation.mdx#list-constraints) | `maxItems: n` | List (array) | | [`unique()`](../core-concepts/validation.mdx#list-constraints) | `uniqueItems: true` | List (array) | diff --git a/packages/ack/lib/src/constraints/number_finite_constraint.dart b/packages/ack/lib/src/constraints/number_finite_constraint.dart index d323eb2e..790b230e 100644 --- a/packages/ack/lib/src/constraints/number_finite_constraint.dart +++ b/packages/ack/lib/src/constraints/number_finite_constraint.dart @@ -1,7 +1,8 @@ import 'constraint.dart'; -/// Constraint to validate if a double is finite. -class NumberFiniteConstraint extends Constraint with Validator { +/// Constraint to validate if a number is finite. +class NumberFiniteConstraint extends Constraint + with Validator { const NumberFiniteConstraint() : super( constraintKey: 'double.isFinite', @@ -9,10 +10,10 @@ class NumberFiniteConstraint extends Constraint with Validator { ); @override - bool isValid(double value) => value.isFinite; + bool isValid(N value) => value.isFinite; @override - String buildMessage(double value) => 'Value must be finite, but was not.'; + String buildMessage(N value) => 'Value must be finite, but was not.'; // No additional fields - base class equality is sufficient. } diff --git a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart index 5de842d4..727882e7 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart @@ -57,7 +57,14 @@ AckSchemaModel _build(AckSchema schema) { final model = switch (schema) { StringSchema() => _string(schema), IntegerSchema() => _integer(schema), - DoubleSchema() => _number(schema), + DoubleSchema() => _number( + description: schema.description, + nullable: schema.isNullable, + ), + NumberSchema() => _number( + description: schema.description, + nullable: schema.isNullable, + ), BooleanSchema() => _boolean(schema), EnumSchema() => _enum(schema), ListSchema() => _array(schema), @@ -88,11 +95,8 @@ AckSchemaModel _integer(IntegerSchema schema) { ); } -AckSchemaModel _number(DoubleSchema schema) { - return AckNumberSchemaModel( - description: schema.description, - nullable: schema.isNullable, - ); +AckSchemaModel _number({String? description, required bool nullable}) { + return AckNumberSchemaModel(description: description, nullable: nullable); } AckSchemaModel _boolean(BooleanSchema schema) { diff --git a/packages/ack/lib/src/schemas/extensions/numeric_extensions.dart b/packages/ack/lib/src/schemas/extensions/numeric_extensions.dart index e07ca02d..86c11035 100644 --- a/packages/ack/lib/src/schemas/extensions/numeric_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/numeric_extensions.dart @@ -86,6 +86,52 @@ extension DoubleSchemaExtensions on DoubleSchema { /// Adds a constraint that the double must be a finite number. DoubleSchema finite() { - return withConstraint(NumberFiniteConstraint()); + return withConstraint(NumberFiniteConstraint()); + } +} + +/// Adds fluent validation methods to [NumberSchema]. +extension NumberSchemaExtensions on NumberSchema { + /// Adds a constraint that the number must be greater than [n]. + NumberSchema greaterThan(num n) { + return withConstraint(ComparisonConstraint.numberExclusiveMin(n)); + } + + /// Adds a constraint that the number must be greater than or equal to [n]. + NumberSchema min(num n) { + return withConstraint(ComparisonConstraint.numberMin(n)); + } + + /// Adds a constraint that the number must be less than [n]. + NumberSchema lessThan(num n) { + return withConstraint(ComparisonConstraint.numberExclusiveMax(n)); + } + + /// Adds a constraint that the number must be less than or equal to [n]. + NumberSchema max(num n) { + return withConstraint(ComparisonConstraint.numberMax(n)); + } + + /// Adds a constraint that the number must be positive (> 0). + NumberSchema positive() { + return withConstraint(ComparisonConstraint.numberPositive()); + } + + /// Adds a constraint that the number must be negative (< 0). + NumberSchema negative() { + return withConstraint(ComparisonConstraint.numberNegative()); + } + + /// Adds a constraint that the number must be a multiple of [n]. + NumberSchema multipleOf(num n) { + return withConstraint(ComparisonConstraint.numberMultipleOf(n)); + } + + /// Adds a constraint that the number must be finite. + /// + /// Numbers are finite by default; this method is kept for API symmetry with + /// [DoubleSchema.finite]. + NumberSchema finite() { + return withConstraint(NumberFiniteConstraint()); } } diff --git a/packages/ack/lib/src/schemas/num_schema.dart b/packages/ack/lib/src/schemas/num_schema.dart index 4cb0c7e1..747281cd 100644 --- a/packages/ack/lib/src/schemas/num_schema.dart +++ b/packages/ack/lib/src/schemas/num_schema.dart @@ -10,6 +10,26 @@ sealed class NumSchema extends AckSchema { super.constraints, super.refinements, }); + + @override + @protected + SchemaResult applyConstraintsAndRefinements( + T value, + SchemaContext context, + ) { + if (value is double && !value.isFinite) { + final constraint = NumberFiniteConstraint(); + final error = constraint.validate(value); + return SchemaResult.fail( + SchemaConstraintsError( + constraints: error != null ? [error] : const [], + context: context, + ), + ); + } + + return super.applyConstraintsAndRefinements(value, context); + } } // --- IntegerSchema --- diff --git a/packages/ack/lib/src/schemas/schema.dart b/packages/ack/lib/src/schemas/schema.dart index db5208c4..2efee0ed 100644 --- a/packages/ack/lib/src/schemas/schema.dart +++ b/packages/ack/lib/src/schemas/schema.dart @@ -3,6 +3,7 @@ import 'package:meta/meta.dart'; import '../common_types.dart'; import '../constraints/constraint.dart'; +import '../constraints/number_finite_constraint.dart'; import '../constraints/pattern_constraint.dart'; import '../constraints/validators.dart'; import '../context.dart'; @@ -96,8 +97,10 @@ abstract class AckSchema { /// for schemas whose parse is just runtime validation. Composite and codec /// schemas override this to implement boundary-shape-specific logic. @protected - SchemaResult parseWithContext(Object? value, SchemaContext context) => - validateRuntimeWithContext(value, context); + SchemaResult parseWithContext( + Object? value, + SchemaContext context, + ) => validateRuntimeWithContext(value, context); /// Validates that [value] is a valid runtime value for this schema. /// @@ -575,4 +578,3 @@ JsonMap? jsonMapOrNull(Object? value) { } return result; } - diff --git a/packages/ack/test/schemas/comprehensive_json_schema_test.dart b/packages/ack/test/schemas/comprehensive_json_schema_test.dart index c1112ae4..c54f65e6 100644 --- a/packages/ack/test/schemas/comprehensive_json_schema_test.dart +++ b/packages/ack/test/schemas/comprehensive_json_schema_test.dart @@ -1,3 +1,5 @@ +import 'dart:convert'; + import 'package:ack/ack.dart'; import 'package:test/test.dart'; @@ -117,18 +119,61 @@ void main() { expect(schema.safeParse(42).isOk, isFalse); }); + test('rejects non-finite doubles by default', () { + final schema = Ack.double(); + + for (final value in [ + double.nan, + double.infinity, + double.negativeInfinity, + ]) { + expect(schema.safeParse(value).isFail, isTrue); + expect(schema.safeEncode(value).isFail, isTrue); + } + }); + test('Ack.number accepts both integer and double values', () { final schema = Ack.number(); expect(schema.safeParse(42).isOk, isTrue); expect(schema.safeParse(3.14).isOk, isTrue); }); + test('Ack.number rejects non-finite values by default', () { + final schema = Ack.number(); + + for (final value in [ + double.nan, + double.infinity, + double.negativeInfinity, + ]) { + expect(schema.safeParse(value).isFail, isTrue); + expect(schema.safeEncode(value).isFail, isTrue); + } + }); + + test('Ack.number generates a number JSON schema', () { + final jsonSchema = Ack.number().toJsonSchema(); + + expect(jsonSchema, {'type': 'number'}); + }); + test('should validate with numeric constraints', () { final schema = Ack.double().min(0.0).max(100.0); expect(schema.safeParse(50.5).isOk, isTrue); expect(schema.safeParse(-1.0).isOk, isFalse); expect(schema.safeParse(101.0).isOk, isFalse); }); + + test('numeric JSON schemas survive jsonEncode', () { + final doubleJson = Ack.double().toJsonSchema(); + final numberJson = Ack.number().min(0).max(10).toJsonSchema(); + + expect(jsonEncode(doubleJson), '{"type":"number"}'); + expect( + jsonEncode(numberJson), + '{"type":"number","minimum":0,"maximum":10}', + ); + }); }); group('BooleanSchema', () { diff --git a/packages/ack/test/schemas/extensions/numeric_extensions_test.dart b/packages/ack/test/schemas/extensions/numeric_extensions_test.dart index 336b3e5d..cf180187 100644 --- a/packages/ack/test/schemas/extensions/numeric_extensions_test.dart +++ b/packages/ack/test/schemas/extensions/numeric_extensions_test.dart @@ -283,6 +283,81 @@ void main() { }); }); + group('NumberSchemaExtensions', () { + test('min and max validate int and double values', () { + final schema = NumberSchema().min(1).max(3.5); + + expect(schema.safeParse(1).isOk, isTrue); + expect(schema.safeParse(2.5).isOk, isTrue); + expect(schema.safeParse(0).isFail, isTrue); + expect(schema.safeParse(4).isFail, isTrue); + }); + + test('exclusive bounds validate numeric values', () { + final schema = NumberSchema().greaterThan(1).lessThan(3); + + expect(schema.safeParse(2).isOk, isTrue); + expect(schema.safeParse(1).isFail, isTrue); + expect(schema.safeParse(3).isFail, isTrue); + }); + + test('positive and negative validate numeric values', () { + expect(NumberSchema().positive().safeParse(1).isOk, isTrue); + expect(NumberSchema().positive().safeParse(0).isFail, isTrue); + expect(NumberSchema().negative().safeParse(-1).isOk, isTrue); + expect(NumberSchema().negative().safeParse(0).isFail, isTrue); + }); + + test('multipleOf validates numeric values', () { + final schema = NumberSchema().multipleOf(0.5); + + expect(schema.safeParse(1).isOk, isTrue); + expect(schema.safeParse(1.5).isOk, isTrue); + expect(schema.safeParse(1.25).isFail, isTrue); + }); + + test('finite rejects non-finite values', () { + final schema = NumberSchema().finite(); + + expect(schema.safeParse(1).isOk, isTrue); + expect(schema.safeParse(1.5).isOk, isTrue); + expect(schema.safeParse(double.nan).isFail, isTrue); + expect(schema.safeParse(double.infinity).isFail, isTrue); + }); + + test('constraints emit JSON Schema keywords', () { + expect(NumberSchema().min(1).toJsonSchema(), { + 'type': 'number', + 'minimum': 1, + }); + expect(NumberSchema().max(2.5).toJsonSchema(), { + 'type': 'number', + 'maximum': 2.5, + }); + expect(NumberSchema().greaterThan(1).toJsonSchema(), { + 'type': 'number', + 'exclusiveMinimum': 1, + }); + expect(NumberSchema().lessThan(2).toJsonSchema(), { + 'type': 'number', + 'exclusiveMaximum': 2, + }); + expect(NumberSchema().multipleOf(0.5).toJsonSchema(), { + 'type': 'number', + 'multipleOf': 0.5, + }); + expect(NumberSchema().positive().toJsonSchema(), { + 'type': 'number', + 'exclusiveMinimum': 0, + }); + expect(NumberSchema().negative().toJsonSchema(), { + 'type': 'number', + 'exclusiveMaximum': 0, + }); + expect(NumberSchema().finite().toJsonSchema(), {'type': 'number'}); + }); + }); + group('IntegerSchemaExtensions', () { group('safe', () { const maxSafeInteger = 9007199254740991; From 6f366c2f841df3dfb2d38406429c8b2493f08082 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 13:02:49 -0400 Subject: [PATCH 21/53] feat(flutter_codec): add geometry codecs --- packages/flutter_codec/README.md | 6 +- packages/flutter_codec/lib/src/borders.dart | 28 +-- packages/flutter_codec/lib/src/enums.dart | 103 ++++---- packages/flutter_codec/lib/src/numbers.dart | 25 ++ .../flutter_codec/lib/src/primitives.dart | 3 + .../lib/src/primitives/alignment.dart | 113 +++++++++ .../lib/src/primitives/border_radius.dart | 93 +++++++ .../lib/src/primitives/color.dart | 3 + .../lib/src/primitives/edge_insets.dart | 93 +++++++ .../lib/src/primitives/offset.dart | 11 +- .../lib/src/primitives/radius.dart | 22 +- .../flutter_codec/test/enums/enums_test.dart | 92 +++---- .../test/primitives/alignment_test.dart | 208 ++++++++++++++++ .../test/primitives/border_radius_test.dart | 226 ++++++++++++++++++ .../test/primitives/edge_insets_test.dart | 176 ++++++++++++++ .../test/primitives/offset_test.dart | 8 + .../test/primitives/radius_test.dart | 8 + 17 files changed, 1083 insertions(+), 135 deletions(-) create mode 100644 packages/flutter_codec/lib/src/numbers.dart create mode 100644 packages/flutter_codec/lib/src/primitives/alignment.dart create mode 100644 packages/flutter_codec/lib/src/primitives/border_radius.dart create mode 100644 packages/flutter_codec/lib/src/primitives/edge_insets.dart create mode 100644 packages/flutter_codec/test/primitives/alignment_test.dart create mode 100644 packages/flutter_codec/test/primitives/border_radius_test.dart create mode 100644 packages/flutter_codec/test/primitives/edge_insets_test.dart diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index fdb702d8..062c931c 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -2,5 +2,7 @@ Flutter value codecs built on ACK schemas. -Phase 1 includes enum schemas and the leaf `Color`, `Offset`, and `Radius` -codecs used by higher-level Flutter shape schemas. +Includes enum codecs and value codecs for `Color`, `Offset`, `Radius`, +`Alignment` / `AlignmentDirectional` / `AlignmentGeometry`, and +`EdgeInsets` / `EdgeInsetsDirectional` / `EdgeInsetsGeometry`, plus the composite +`BorderSide` codec (and its `strokeAlign` codec) that reuse them. diff --git a/packages/flutter_codec/lib/src/borders.dart b/packages/flutter_codec/lib/src/borders.dart index 064b810b..afac639f 100644 --- a/packages/flutter_codec/lib/src/borders.dart +++ b/packages/flutter_codec/lib/src/borders.dart @@ -1,7 +1,8 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show BorderSide, BorderStyle, Color; -import 'enums.dart' show borderStyleSchema; +import 'enums.dart' show borderStyleCodec, enumCodec; +import 'numbers.dart'; import 'primitives/color.dart' show colorCodec; /// Named [BorderSide.strokeAlign] offsets, encoded as string aliases. @@ -15,13 +16,7 @@ enum _StrokeAlign { inside, center, outside } /// canonicalizes the three named offsets back to their aliases and emits any /// other finite value as a number. final strokeAlignCodec = Ack.codec( - input: Ack.anyOf([ - Ack.enumValues(_StrokeAlign.values), - Ack.number().refine( - (value) => value.isFinite, - message: 'Expected a finite number.', - ), - ]), + input: Ack.anyOf([enumCodec(_StrokeAlign.values), finiteNumber()]), decode: _decodeStrokeAlign, encode: _encodeStrokeAlign, ); @@ -45,7 +40,7 @@ Object _encodeStrokeAlign(double value) { }; } -/// Codec for [BorderSide], composing [colorCodec], [borderStyleSchema], and +/// Codec for [BorderSide], composing [colorCodec], [borderStyleCodec], and /// [strokeAlignCodec]. /// /// Missing fields fall back to Flutter's [BorderSide] constructor defaults, so @@ -53,22 +48,15 @@ Object _encodeStrokeAlign(double value) { /// object with all four fields. final borderSideCodec = Ack.object({ 'color': colorCodec.withDefault(const Color(0xFF000000)), - 'width': _widthSchema().withDefault(1.0), - 'style': borderStyleSchema.withDefault(BorderStyle.solid), + 'width': nonNegativeFiniteNumber().withDefault(1.0), + 'style': borderStyleCodec.withDefault(BorderStyle.solid), 'strokeAlign': strokeAlignCodec.withDefault(BorderSide.strokeAlignInside), }).model(decode: _decodeBorderSide, encode: _encodeBorderSide); -NumberSchema _widthSchema() { - return Ack.number().refine( - (value) => value.isFinite && value >= 0, - message: 'Expected a finite, non-negative width.', - ); -} - BorderSide _decodeBorderSide(JsonMap data) { return BorderSide( color: data['color']! as Color, - width: (data['width']! as num).toDouble(), + width: readDouble(data, 'width'), style: data['style']! as BorderStyle, strokeAlign: data['strokeAlign']! as double, ); @@ -76,7 +64,7 @@ BorderSide _decodeBorderSide(JsonMap data) { // Returns runtime property values (Color, BorderStyle, double), not JSON. The // object schema re-encodes each property through its own schema (colorCodec, -// borderStyleSchema, strokeAlignCodec) to produce the JSON-safe boundary. +// borderStyleCodec, strokeAlignCodec) to produce the JSON-safe boundary. JsonMap _encodeBorderSide(BorderSide value) { return { 'color': value.color, diff --git a/packages/flutter_codec/lib/src/enums.dart b/packages/flutter_codec/lib/src/enums.dart index 0ea440d4..706cc5bf 100644 --- a/packages/flutter_codec/lib/src/enums.dart +++ b/packages/flutter_codec/lib/src/enums.dart @@ -47,98 +47,103 @@ import 'package:flutter/rendering.dart' import 'package:flutter/services.dart' show TextCapitalization; import 'package:flutter/widgets.dart' show ScrollViewKeyboardDismissBehavior; -final axisSchema = Ack.enumValues(Axis.values); +/// Creates a reusable [CodecSchema] for the Dart enum [T], mapping each value +/// to and from its `.name` string. Wraps [Ack.enumValues] — which already does +/// the String↔enum conversion and emits an `enum` JSON Schema — in a codec so +/// the return type matches the package's other `*Codec` exports. +CodecSchema enumCodec(List values) => + Ack.enumValues( + values, + ).codec(decode: (value) => value, encode: (value) => value); -final axisDirectionSchema = Ack.enumValues(AxisDirection.values); +final axisCodec = enumCodec(Axis.values); -final blendModeSchema = Ack.enumValues(BlendMode.values); +final axisDirectionCodec = enumCodec(AxisDirection.values); -final blurStyleSchema = Ack.enumValues(BlurStyle.values); +final blendModeCodec = enumCodec(BlendMode.values); -final borderStyleSchema = Ack.enumValues(BorderStyle.values); +final blurStyleCodec = enumCodec(BlurStyle.values); -final boxFitSchema = Ack.enumValues(BoxFit.values); +final borderStyleCodec = enumCodec(BorderStyle.values); -final boxHeightStyleSchema = Ack.enumValues(BoxHeightStyle.values); +final boxFitCodec = enumCodec(BoxFit.values); -final boxShapeSchema = Ack.enumValues(BoxShape.values); +final boxHeightStyleCodec = enumCodec(BoxHeightStyle.values); -final boxWidthStyleSchema = Ack.enumValues(BoxWidthStyle.values); +final boxShapeCodec = enumCodec(BoxShape.values); -final brightnessSchema = Ack.enumValues(Brightness.values); +final boxWidthStyleCodec = enumCodec(BoxWidthStyle.values); -final clipSchema = Ack.enumValues(Clip.values); +final brightnessCodec = enumCodec(Brightness.values); -final crossAxisAlignmentSchema = Ack.enumValues(CrossAxisAlignment.values); +final clipCodec = enumCodec(Clip.values); -final decorationPositionSchema = Ack.enumValues(DecorationPosition.values); +final crossAxisAlignmentCodec = enumCodec(CrossAxisAlignment.values); -final dragStartBehaviorSchema = Ack.enumValues(DragStartBehavior.values); +final decorationPositionCodec = enumCodec(DecorationPosition.values); -final filterQualitySchema = Ack.enumValues(FilterQuality.values); +final dragStartBehaviorCodec = enumCodec(DragStartBehavior.values); -final flexFitSchema = Ack.enumValues(FlexFit.values); +final filterQualityCodec = enumCodec(FilterQuality.values); -final fontStyleSchema = Ack.enumValues(FontStyle.values); +final flexFitCodec = enumCodec(FlexFit.values); -final growthDirectionSchema = Ack.enumValues(GrowthDirection.values); +final fontStyleCodec = enumCodec(FontStyle.values); -final hitTestBehaviorSchema = Ack.enumValues(HitTestBehavior.values); +final growthDirectionCodec = enumCodec(GrowthDirection.values); -final imageRepeatSchema = Ack.enumValues(ImageRepeat.values); +final hitTestBehaviorCodec = enumCodec(HitTestBehavior.values); -final mainAxisAlignmentSchema = Ack.enumValues(MainAxisAlignment.values); +final imageRepeatCodec = enumCodec(ImageRepeat.values); -final mainAxisSizeSchema = Ack.enumValues(MainAxisSize.values); +final mainAxisAlignmentCodec = enumCodec(MainAxisAlignment.values); -final materialTapTargetSizeSchema = Ack.enumValues( - MaterialTapTargetSize.values, -); +final mainAxisSizeCodec = enumCodec(MainAxisSize.values); + +final materialTapTargetSizeCodec = enumCodec(MaterialTapTargetSize.values); -final paintingStyleSchema = Ack.enumValues(PaintingStyle.values); +final paintingStyleCodec = enumCodec(PaintingStyle.values); -final pathFillTypeSchema = Ack.enumValues(PathFillType.values); +final pathFillTypeCodec = enumCodec(PathFillType.values); -final placeholderAlignmentSchema = Ack.enumValues(PlaceholderAlignment.values); +final placeholderAlignmentCodec = enumCodec(PlaceholderAlignment.values); -final scrollDirectionSchema = Ack.enumValues(ScrollDirection.values); +final scrollDirectionCodec = enumCodec(ScrollDirection.values); -final scrollViewKeyboardDismissBehaviorSchema = Ack.enumValues( +final scrollViewKeyboardDismissBehaviorCodec = enumCodec( ScrollViewKeyboardDismissBehavior.values, ); -final stackFitSchema = Ack.enumValues(StackFit.values); +final stackFitCodec = enumCodec(StackFit.values); -final strokeCapSchema = Ack.enumValues(StrokeCap.values); +final strokeCapCodec = enumCodec(StrokeCap.values); -final strokeJoinSchema = Ack.enumValues(StrokeJoin.values); +final strokeJoinCodec = enumCodec(StrokeJoin.values); -final targetPlatformSchema = Ack.enumValues(TargetPlatform.values); +final targetPlatformCodec = enumCodec(TargetPlatform.values); -final textAlignSchema = Ack.enumValues(TextAlign.values); +final textAlignCodec = enumCodec(TextAlign.values); -final textBaselineSchema = Ack.enumValues(TextBaseline.values); +final textBaselineCodec = enumCodec(TextBaseline.values); -final textCapitalizationSchema = Ack.enumValues(TextCapitalization.values); +final textCapitalizationCodec = enumCodec(TextCapitalization.values); -final textDecorationStyleSchema = Ack.enumValues(TextDecorationStyle.values); +final textDecorationStyleCodec = enumCodec(TextDecorationStyle.values); -final textDirectionSchema = Ack.enumValues(TextDirection.values); +final textDirectionCodec = enumCodec(TextDirection.values); -final textLeadingDistributionSchema = Ack.enumValues( - TextLeadingDistribution.values, -); +final textLeadingDistributionCodec = enumCodec(TextLeadingDistribution.values); -final textOverflowSchema = Ack.enumValues(TextOverflow.values); +final textOverflowCodec = enumCodec(TextOverflow.values); -final textWidthBasisSchema = Ack.enumValues(TextWidthBasis.values); +final textWidthBasisCodec = enumCodec(TextWidthBasis.values); -final themeModeSchema = Ack.enumValues(ThemeMode.values); +final themeModeCodec = enumCodec(ThemeMode.values); -final tileModeSchema = Ack.enumValues(TileMode.values); +final tileModeCodec = enumCodec(TileMode.values); -final verticalDirectionSchema = Ack.enumValues(VerticalDirection.values); +final verticalDirectionCodec = enumCodec(VerticalDirection.values); -final wrapAlignmentSchema = Ack.enumValues(WrapAlignment.values); +final wrapAlignmentCodec = enumCodec(WrapAlignment.values); -final wrapCrossAlignmentSchema = Ack.enumValues(WrapCrossAlignment.values); +final wrapCrossAlignmentCodec = enumCodec(WrapCrossAlignment.values); diff --git a/packages/flutter_codec/lib/src/numbers.dart b/packages/flutter_codec/lib/src/numbers.dart new file mode 100644 index 00000000..c3e66ed1 --- /dev/null +++ b/packages/flutter_codec/lib/src/numbers.dart @@ -0,0 +1,25 @@ +import 'package:ack/ack.dart'; + +/// A finite number — rejects `NaN` and the infinities, which are never valid +/// for Flutter measurements and are not JSON-safe. +NumberSchema finiteNumber() { + return Ack.number().refine( + (value) => value.isFinite, + message: 'Expected a finite number.', + ); +} + +/// A finite, non-negative number. +NumberSchema nonNegativeFiniteNumber() { + return Ack.number().refine( + (value) => value.isFinite && value >= 0, + message: 'Expected a finite, non-negative number.', + ); +} + +/// Reads the required numeric field [key] from a decoded [map] as a `double`. +/// +/// The schema has already validated the field, so the value is present and a +/// `num`; this just centralises the `as num` cast and `toDouble` conversion +/// shared by the object-shaped codec decoders. +double readDouble(JsonMap map, String key) => (map[key]! as num).toDouble(); diff --git a/packages/flutter_codec/lib/src/primitives.dart b/packages/flutter_codec/lib/src/primitives.dart index b2a11395..b2a3416c 100644 --- a/packages/flutter_codec/lib/src/primitives.dart +++ b/packages/flutter_codec/lib/src/primitives.dart @@ -1,3 +1,6 @@ +export 'primitives/alignment.dart'; +export 'primitives/border_radius.dart'; export 'primitives/color.dart'; +export 'primitives/edge_insets.dart'; export 'primitives/offset.dart'; export 'primitives/radius.dart'; diff --git a/packages/flutter_codec/lib/src/primitives/alignment.dart b/packages/flutter_codec/lib/src/primitives/alignment.dart new file mode 100644 index 00000000..e1ac16ec --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/alignment.dart @@ -0,0 +1,113 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show Alignment, AlignmentDirectional, AlignmentGeometry; + +import '../enums.dart' show enumCodec; +import '../numbers.dart'; + +/// Named [Alignment] constants, encoded as string aliases. +enum _Alignment { + topLeft(Alignment.topLeft), + topCenter(Alignment.topCenter), + topRight(Alignment.topRight), + centerLeft(Alignment.centerLeft), + center(Alignment.center), + centerRight(Alignment.centerRight), + bottomLeft(Alignment.bottomLeft), + bottomCenter(Alignment.bottomCenter), + bottomRight(Alignment.bottomRight); + + const _Alignment(this.value); + + final Alignment value; +} + +/// Codec for [Alignment]. Named constants (`"center"`, `"topLeft"`, …) encode +/// and decode as strings; arbitrary values use `{"x": ..., "y": ...}`. Encoding +/// emits the name when the value matches a constant, otherwise the object. +final alignmentCodec = Ack.codec( + input: Ack.anyOf([ + enumCodec(_Alignment.values), + Ack.object({'x': finiteNumber(), 'y': finiteNumber()}), + ]), + decode: _decodeAlignment, + encode: _encodeAlignment, +); + +Alignment _decodeAlignment(Object value) { + if (value is _Alignment) return value.value; + + final map = value as JsonMap; + return Alignment(readDouble(map, 'x'), readDouble(map, 'y')); +} + +Object _encodeAlignment(Alignment value) { + for (final named in _Alignment.values) { + if (named.value == value) return named; + } + + return {'x': value.x, 'y': value.y}; +} + +/// Named [AlignmentDirectional] constants, encoded as string aliases. +enum _AlignmentDirectional { + topStart(AlignmentDirectional.topStart), + topCenter(AlignmentDirectional.topCenter), + topEnd(AlignmentDirectional.topEnd), + centerStart(AlignmentDirectional.centerStart), + center(AlignmentDirectional.center), + centerEnd(AlignmentDirectional.centerEnd), + bottomStart(AlignmentDirectional.bottomStart), + bottomCenter(AlignmentDirectional.bottomCenter), + bottomEnd(AlignmentDirectional.bottomEnd); + + const _AlignmentDirectional(this.value); + + final AlignmentDirectional value; +} + +/// Codec for [AlignmentDirectional]. Named constants (`"centerStart"`, +/// `"topEnd"`, …) encode and decode as strings; arbitrary values use +/// `{"start": ..., "y": ...}`. Encoding emits the name when the value matches a +/// constant, otherwise the object. +final alignmentDirectionalCodec = + Ack.codec( + input: Ack.anyOf([ + enumCodec(_AlignmentDirectional.values), + Ack.object({'start': finiteNumber(), 'y': finiteNumber()}), + ]), + decode: _decodeAlignmentDirectional, + encode: _encodeAlignmentDirectional, + ); + +AlignmentDirectional _decodeAlignmentDirectional(Object value) { + if (value is _AlignmentDirectional) return value.value; + + final map = value as JsonMap; + return AlignmentDirectional(readDouble(map, 'start'), readDouble(map, 'y')); +} + +Object _encodeAlignmentDirectional(AlignmentDirectional value) { + for (final named in _AlignmentDirectional.values) { + if (named.value == value) return named; + } + + return {'start': value.start, 'y': value.y}; +} + +/// Codec for [AlignmentGeometry], unioning [alignmentCodec] and +/// [alignmentDirectionalCodec]. +/// +/// `{x, y}` and the regular names decode to [Alignment]; `{start, y}` and the +/// directional names decode to [AlignmentDirectional]. The shared center-column +/// names (`"center"`, `"topCenter"`, `"bottomCenter"`) decode to [Alignment], +/// since [alignmentCodec] is tried first. Mixed alignments (the result of +/// adding an [Alignment] to an [AlignmentDirectional]) are not supported. +final alignmentGeometryCodec = + Ack.anyOf([ + alignmentCodec, + alignmentDirectionalCodec, + ]).codec( + decode: (value) => value as AlignmentGeometry, + encode: (value) => value, + ); diff --git a/packages/flutter_codec/lib/src/primitives/border_radius.dart b/packages/flutter_codec/lib/src/primitives/border_radius.dart new file mode 100644 index 00000000..54b8349a --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/border_radius.dart @@ -0,0 +1,93 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show BorderRadius, BorderRadiusDirectional, BorderRadiusGeometry, Radius; + +import 'radius.dart' show radiusCodec; + +/// Codec for [BorderRadius]. A single radius (a number or `{x,y}`) sets all four +/// corners; an object `{topLeft, topRight, bottomLeft, bottomRight}` (each corner +/// optional, defaulting to `Radius.zero`) sets them individually. Encoding emits +/// a single radius when all corners are equal, otherwise the full object. +final borderRadiusCodec = Ack.codec( + input: Ack.anyOf([ + radiusCodec, + Ack.object({ + 'topLeft': radiusCodec.withDefault(Radius.zero), + 'topRight': radiusCodec.withDefault(Radius.zero), + 'bottomLeft': radiusCodec.withDefault(Radius.zero), + 'bottomRight': radiusCodec.withDefault(Radius.zero), + }), + ]), + decode: _decodeBorderRadius, + encode: _encodeBorderRadius, +); + +BorderRadius _decodeBorderRadius(Object value) { + if (value is Radius) return BorderRadius.all(value); + + final map = value as JsonMap; + return BorderRadius.only( + topLeft: map['topLeft']! as Radius, + topRight: map['topRight']! as Radius, + bottomLeft: map['bottomLeft']! as Radius, + bottomRight: map['bottomRight']! as Radius, + ); +} + +Object _encodeBorderRadius(BorderRadius value) { + if (value.topLeft == value.topRight && + value.topRight == value.bottomLeft && + value.bottomLeft == value.bottomRight) { + return value.topLeft; + } + + return { + 'topLeft': value.topLeft, + 'topRight': value.topRight, + 'bottomLeft': value.bottomLeft, + 'bottomRight': value.bottomRight, + }; +} + +/// Codec for [BorderRadiusDirectional], an object +/// `{topStart, topEnd, bottomStart, bottomEnd}` (each corner optional, defaulting +/// to `Radius.zero`). Always encodes to the object form — never a shorthand — so +/// the directional type round-trips even when uniform or zero (a single radius is +/// reserved for [BorderRadius]). +final borderRadiusDirectionalCodec = + Ack.object({ + 'topStart': radiusCodec.withDefault(Radius.zero), + 'topEnd': radiusCodec.withDefault(Radius.zero), + 'bottomStart': radiusCodec.withDefault(Radius.zero), + 'bottomEnd': radiusCodec.withDefault(Radius.zero), + }).model( + decode: (data) => BorderRadiusDirectional.only( + topStart: data['topStart']! as Radius, + topEnd: data['topEnd']! as Radius, + bottomStart: data['bottomStart']! as Radius, + bottomEnd: data['bottomEnd']! as Radius, + ), + encode: (value) => { + 'topStart': value.topStart, + 'topEnd': value.topEnd, + 'bottomStart': value.bottomStart, + 'bottomEnd': value.bottomEnd, + }, + ); + +/// Codec for [BorderRadiusGeometry], unioning [borderRadiusCodec] and +/// [borderRadiusDirectionalCodec]. +/// +/// A radius shorthand, an `{topLeft, …}` object, and `{}` decode to +/// [BorderRadius]; objects carrying `topStart`/`topEnd`/`bottomStart`/`bottomEnd` +/// decode to [BorderRadiusDirectional] ([borderRadiusCodec] is tried first). +/// Encoding dispatches by runtime type. Mixed radii (from adding a [BorderRadius] +/// to a [BorderRadiusDirectional]) are not supported. +final borderRadiusGeometryCodec = + Ack.anyOf([ + borderRadiusCodec, + borderRadiusDirectionalCodec, + ]).codec( + decode: (value) => value as BorderRadiusGeometry, + encode: (value) => value, + ); diff --git a/packages/flutter_codec/lib/src/primitives/color.dart b/packages/flutter_codec/lib/src/primitives/color.dart index 596e1cec..9258bee1 100644 --- a/packages/flutter_codec/lib/src/primitives/color.dart +++ b/packages/flutter_codec/lib/src/primitives/color.dart @@ -1,6 +1,9 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show Color; +/// Codec for [Color]. Accepts `#RRGGBB`, `#AARRGGBB`, `rgb(r,g,b)`, and +/// `rgba(r,g,b,a)` strings; encodes to canonical hex (`#RRGGBB`, or `#AARRGGBB` +/// when translucent). final colorCodec = Ack.codec( input: Ack.anyOf([ Ack.string().matches(r'^#[0-9A-Fa-f]{6}$'), diff --git a/packages/flutter_codec/lib/src/primitives/edge_insets.dart b/packages/flutter_codec/lib/src/primitives/edge_insets.dart new file mode 100644 index 00000000..9f23a74f --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/edge_insets.dart @@ -0,0 +1,93 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show EdgeInsets, EdgeInsetsDirectional, EdgeInsetsGeometry; + +import '../numbers.dart'; + +/// Codec for [EdgeInsets]. A bare number sets all four sides; an object +/// `{"left": ..., "top": ..., "right": ..., "bottom": ...}` (each side optional, +/// defaulting to `0`) sets them individually. Encoding emits a scalar when all +/// sides are equal, otherwise the full object. +final edgeInsetsCodec = Ack.codec( + input: Ack.anyOf([ + finiteNumber(), + Ack.object({ + 'left': finiteNumber().withDefault(0.0), + 'top': finiteNumber().withDefault(0.0), + 'right': finiteNumber().withDefault(0.0), + 'bottom': finiteNumber().withDefault(0.0), + }), + ]), + decode: _decodeEdgeInsets, + encode: _encodeEdgeInsets, +); + +EdgeInsets _decodeEdgeInsets(Object value) { + if (value is num) return EdgeInsets.all(value.toDouble()); + + final map = value as JsonMap; + return EdgeInsets.fromLTRB( + readDouble(map, 'left'), + readDouble(map, 'top'), + readDouble(map, 'right'), + readDouble(map, 'bottom'), + ); +} + +Object _encodeEdgeInsets(EdgeInsets value) { + if (value.left == value.top && + value.top == value.right && + value.right == value.bottom) { + return value.left; + } + + return { + 'left': value.left, + 'top': value.top, + 'right': value.right, + 'bottom': value.bottom, + }; +} + +/// Codec for [EdgeInsetsDirectional], an object +/// `{"start": ..., "top": ..., "end": ..., "bottom": ...}` (each side optional, +/// defaulting to `0`). Always encodes to the object form — never a scalar — so +/// the directional type round-trips even when uniform or zero (a bare number is +/// reserved for [EdgeInsets]). +final edgeInsetsDirectionalCodec = + Ack.object({ + 'start': finiteNumber().withDefault(0.0), + 'top': finiteNumber().withDefault(0.0), + 'end': finiteNumber().withDefault(0.0), + 'bottom': finiteNumber().withDefault(0.0), + }).model( + decode: (data) => EdgeInsetsDirectional.fromSTEB( + readDouble(data, 'start'), + readDouble(data, 'top'), + readDouble(data, 'end'), + readDouble(data, 'bottom'), + ), + encode: (value) => { + 'start': value.start, + 'top': value.top, + 'end': value.end, + 'bottom': value.bottom, + }, + ); + +/// Codec for [EdgeInsetsGeometry], unioning [edgeInsetsCodec] and +/// [edgeInsetsDirectionalCodec]. +/// +/// A scalar, an `{left, top, right, bottom}` object, a shared `top`/`bottom`-only +/// object, and `{}` decode to [EdgeInsets]; objects carrying `start`/`end` decode +/// to [EdgeInsetsDirectional] ([edgeInsetsCodec] is tried first). Encoding +/// dispatches by runtime type. Mixed insets (from adding an [EdgeInsets] to an +/// [EdgeInsetsDirectional]) are not supported. +final edgeInsetsGeometryCodec = + Ack.anyOf([ + edgeInsetsCodec, + edgeInsetsDirectionalCodec, + ]).codec( + decode: (value) => value as EdgeInsetsGeometry, + encode: (value) => value, + ); diff --git a/packages/flutter_codec/lib/src/primitives/offset.dart b/packages/flutter_codec/lib/src/primitives/offset.dart index 895d1a94..bd36b5fe 100644 --- a/packages/flutter_codec/lib/src/primitives/offset.dart +++ b/packages/flutter_codec/lib/src/primitives/offset.dart @@ -1,12 +1,11 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show Offset; -final offsetCodec = Ack.object({'x': Ack.number(), 'y': Ack.number()}) +import '../numbers.dart'; + +/// Codec for [Offset], represented as `{"x": ..., "y": ...}`. +final offsetCodec = Ack.object({'x': finiteNumber(), 'y': finiteNumber()}) .model( - decode: (data) { - final x = data['x']! as num; - final y = data['y']! as num; - return Offset(x.toDouble(), y.toDouble()); - }, + decode: (data) => Offset(readDouble(data, 'x'), readDouble(data, 'y')), encode: (value) => {'x': value.dx, 'y': value.dy}, ); diff --git a/packages/flutter_codec/lib/src/primitives/radius.dart b/packages/flutter_codec/lib/src/primitives/radius.dart index 3f71304e..03735982 100644 --- a/packages/flutter_codec/lib/src/primitives/radius.dart +++ b/packages/flutter_codec/lib/src/primitives/radius.dart @@ -1,31 +1,29 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show Radius; +import '../numbers.dart'; + +/// Codec for [Radius]. A single non-negative number is a circular radius; +/// `{"x": ..., "y": ...}` is elliptical. Circular radii encode back to a number. final radiusCodec = Ack.codec( input: Ack.anyOf([ - _nonNegativeNumber(), - Ack.object({'x': _nonNegativeNumber(), 'y': _nonNegativeNumber()}), + nonNegativeFiniteNumber(), + Ack.object({ + 'x': nonNegativeFiniteNumber(), + 'y': nonNegativeFiniteNumber(), + }), ]), decode: _decodeRadius, encode: _encodeRadius, ); -NumberSchema _nonNegativeNumber() { - return Ack.number().refine( - (value) => value >= 0, - message: 'Expected a non-negative number.', - ); -} - Radius _decodeRadius(Object value) { if (value is num) { return Radius.circular(value.toDouble()); } final map = value as JsonMap; - final x = map['x']! as num; - final y = map['y']! as num; - return Radius.elliptical(x.toDouble(), y.toDouble()); + return Radius.elliptical(readDouble(map, 'x'), readDouble(map, 'y')); } Object _encodeRadius(Radius value) { diff --git a/packages/flutter_codec/test/enums/enums_test.dart b/packages/flutter_codec/test/enums/enums_test.dart index 8c1ab56e..a97e9e2b 100644 --- a/packages/flutter_codec/test/enums/enums_test.dart +++ b/packages/flutter_codec/test/enums/enums_test.dart @@ -31,161 +31,161 @@ void main() { } final _registry = <_EnumCase>[ - _EnumCase('Axis', axisSchema, Axis.values), + _EnumCase('Axis', axisCodec, Axis.values), _EnumCase( 'AxisDirection', - axisDirectionSchema, + axisDirectionCodec, AxisDirection.values, ), - _EnumCase('BlendMode', blendModeSchema, BlendMode.values), - _EnumCase('BlurStyle', blurStyleSchema, BlurStyle.values), - _EnumCase('BorderStyle', borderStyleSchema, BorderStyle.values), - _EnumCase('BoxFit', boxFitSchema, BoxFit.values), + _EnumCase('BlendMode', blendModeCodec, BlendMode.values), + _EnumCase('BlurStyle', blurStyleCodec, BlurStyle.values), + _EnumCase('BorderStyle', borderStyleCodec, BorderStyle.values), + _EnumCase('BoxFit', boxFitCodec, BoxFit.values), _EnumCase( 'BoxHeightStyle', - boxHeightStyleSchema, + boxHeightStyleCodec, BoxHeightStyle.values, ), - _EnumCase('BoxShape', boxShapeSchema, BoxShape.values), + _EnumCase('BoxShape', boxShapeCodec, BoxShape.values), _EnumCase( 'BoxWidthStyle', - boxWidthStyleSchema, + boxWidthStyleCodec, BoxWidthStyle.values, ), - _EnumCase('Brightness', brightnessSchema, Brightness.values), - _EnumCase('Clip', clipSchema, Clip.values), + _EnumCase('Brightness', brightnessCodec, Brightness.values), + _EnumCase('Clip', clipCodec, Clip.values), _EnumCase( 'CrossAxisAlignment', - crossAxisAlignmentSchema, + crossAxisAlignmentCodec, CrossAxisAlignment.values, ), _EnumCase( 'DecorationPosition', - decorationPositionSchema, + decorationPositionCodec, DecorationPosition.values, ), _EnumCase( 'DragStartBehavior', - dragStartBehaviorSchema, + dragStartBehaviorCodec, DragStartBehavior.values, ), _EnumCase( 'FilterQuality', - filterQualitySchema, + filterQualityCodec, FilterQuality.values, ), - _EnumCase('FlexFit', flexFitSchema, FlexFit.values), - _EnumCase('FontStyle', fontStyleSchema, FontStyle.values), + _EnumCase('FlexFit', flexFitCodec, FlexFit.values), + _EnumCase('FontStyle', fontStyleCodec, FontStyle.values), _EnumCase( 'GrowthDirection', - growthDirectionSchema, + growthDirectionCodec, GrowthDirection.values, ), _EnumCase( 'HitTestBehavior', - hitTestBehaviorSchema, + hitTestBehaviorCodec, HitTestBehavior.values, ), - _EnumCase('ImageRepeat', imageRepeatSchema, ImageRepeat.values), + _EnumCase('ImageRepeat', imageRepeatCodec, ImageRepeat.values), _EnumCase( 'MainAxisAlignment', - mainAxisAlignmentSchema, + mainAxisAlignmentCodec, MainAxisAlignment.values, ), _EnumCase( 'MainAxisSize', - mainAxisSizeSchema, + mainAxisSizeCodec, MainAxisSize.values, ), _EnumCase( 'MaterialTapTargetSize', - materialTapTargetSizeSchema, + materialTapTargetSizeCodec, MaterialTapTargetSize.values, ), _EnumCase( 'PaintingStyle', - paintingStyleSchema, + paintingStyleCodec, PaintingStyle.values, ), _EnumCase( 'PathFillType', - pathFillTypeSchema, + pathFillTypeCodec, PathFillType.values, ), _EnumCase( 'PlaceholderAlignment', - placeholderAlignmentSchema, + placeholderAlignmentCodec, PlaceholderAlignment.values, ), _EnumCase( 'ScrollDirection', - scrollDirectionSchema, + scrollDirectionCodec, ScrollDirection.values, ), _EnumCase( 'ScrollViewKeyboardDismissBehavior', - scrollViewKeyboardDismissBehaviorSchema, + scrollViewKeyboardDismissBehaviorCodec, ScrollViewKeyboardDismissBehavior.values, ), - _EnumCase('StackFit', stackFitSchema, StackFit.values), - _EnumCase('StrokeCap', strokeCapSchema, StrokeCap.values), - _EnumCase('StrokeJoin', strokeJoinSchema, StrokeJoin.values), + _EnumCase('StackFit', stackFitCodec, StackFit.values), + _EnumCase('StrokeCap', strokeCapCodec, StrokeCap.values), + _EnumCase('StrokeJoin', strokeJoinCodec, StrokeJoin.values), _EnumCase( 'TargetPlatform', - targetPlatformSchema, + targetPlatformCodec, TargetPlatform.values, ), - _EnumCase('TextAlign', textAlignSchema, TextAlign.values), + _EnumCase('TextAlign', textAlignCodec, TextAlign.values), _EnumCase( 'TextBaseline', - textBaselineSchema, + textBaselineCodec, TextBaseline.values, ), _EnumCase( 'TextCapitalization', - textCapitalizationSchema, + textCapitalizationCodec, TextCapitalization.values, ), _EnumCase( 'TextDecorationStyle', - textDecorationStyleSchema, + textDecorationStyleCodec, TextDecorationStyle.values, ), _EnumCase( 'TextDirection', - textDirectionSchema, + textDirectionCodec, TextDirection.values, ), _EnumCase( 'TextLeadingDistribution', - textLeadingDistributionSchema, + textLeadingDistributionCodec, TextLeadingDistribution.values, ), _EnumCase( 'TextOverflow', - textOverflowSchema, + textOverflowCodec, TextOverflow.values, ), _EnumCase( 'TextWidthBasis', - textWidthBasisSchema, + textWidthBasisCodec, TextWidthBasis.values, ), - _EnumCase('ThemeMode', themeModeSchema, ThemeMode.values), - _EnumCase('TileMode', tileModeSchema, TileMode.values), + _EnumCase('ThemeMode', themeModeCodec, ThemeMode.values), + _EnumCase('TileMode', tileModeCodec, TileMode.values), _EnumCase( 'VerticalDirection', - verticalDirectionSchema, + verticalDirectionCodec, VerticalDirection.values, ), _EnumCase( 'WrapAlignment', - wrapAlignmentSchema, + wrapAlignmentCodec, WrapAlignment.values, ), _EnumCase( 'WrapCrossAlignment', - wrapCrossAlignmentSchema, + wrapCrossAlignmentCodec, WrapCrossAlignment.values, ), ]; @@ -194,7 +194,7 @@ final class _EnumCase { const _EnumCase(this.name, this.schema, this.values); final String name; - final EnumSchema schema; + final CodecSchema schema; final List values; String? encode(Enum value) => schema.encode(value as T); diff --git a/packages/flutter_codec/test/primitives/alignment_test.dart b/packages/flutter_codec/test/primitives/alignment_test.dart new file mode 100644 index 00000000..31a85de1 --- /dev/null +++ b/packages/flutter_codec/test/primitives/alignment_test.dart @@ -0,0 +1,208 @@ +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('alignmentCodec', () { + const named = { + 'topLeft': Alignment.topLeft, + 'topCenter': Alignment.topCenter, + 'topRight': Alignment.topRight, + 'centerLeft': Alignment.centerLeft, + 'center': Alignment.center, + 'centerRight': Alignment.centerRight, + 'bottomLeft': Alignment.bottomLeft, + 'bottomCenter': Alignment.bottomCenter, + 'bottomRight': Alignment.bottomRight, + }; + + named.forEach((name, value) { + test('decodes/encodes named "$name"', () { + expect(alignmentCodec.parse(name), value); + final encoded = alignmentCodec.encode(value); + expect(encoded, name); + expectJsonSafe(encoded); + }); + }); + + test('decodes an arbitrary {x, y} object', () { + expect( + alignmentCodec.parse({'x': 0.25, 'y': -0.5}), + const Alignment(0.25, -0.5), + ); + }); + + test('encodes an arbitrary Alignment as {x, y}', () { + final encoded = alignmentCodec.encode(const Alignment(0.25, -0.5)); + expect(encoded, {'x': 0.25, 'y': -0.5}); + expectJsonSafe(encoded); + }); + + test('decodes an integer object coordinate as a double', () { + expect(alignmentCodec.parse({'x': 1, 'y': 0}), const Alignment(1, 0)); + }); + + group('rejects invalid input', () { + const invalidCases = { + 'unknown name': 'middle', + 'missing y': {'x': 0.0}, + 'extra key': {'x': 0.0, 'y': 0.0, 'z': 1.0}, + 'directional shape': {'start': 0.0, 'y': 0.0}, + 'non-finite x': {'x': double.infinity, 'y': 0.0}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(alignmentCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + }); + + group('alignmentDirectionalCodec', () { + const named = { + 'topStart': AlignmentDirectional.topStart, + 'topCenter': AlignmentDirectional.topCenter, + 'topEnd': AlignmentDirectional.topEnd, + 'centerStart': AlignmentDirectional.centerStart, + 'center': AlignmentDirectional.center, + 'centerEnd': AlignmentDirectional.centerEnd, + 'bottomStart': AlignmentDirectional.bottomStart, + 'bottomCenter': AlignmentDirectional.bottomCenter, + 'bottomEnd': AlignmentDirectional.bottomEnd, + }; + + named.forEach((name, value) { + test('decodes/encodes named "$name"', () { + expect(alignmentDirectionalCodec.parse(name), value); + final encoded = alignmentDirectionalCodec.encode(value); + expect(encoded, name); + expectJsonSafe(encoded); + }); + }); + + test('decodes an arbitrary {start, y} object', () { + expect( + alignmentDirectionalCodec.parse({'start': 0.25, 'y': -0.5}), + const AlignmentDirectional(0.25, -0.5), + ); + }); + + test('encodes an arbitrary AlignmentDirectional as {start, y}', () { + final encoded = alignmentDirectionalCodec.encode( + const AlignmentDirectional(0.25, -0.5), + ); + expect(encoded, {'start': 0.25, 'y': -0.5}); + expectJsonSafe(encoded); + }); + + group('rejects invalid input', () { + const invalidCases = { + 'unknown name': 'middle', + 'missing y': {'start': 0.0}, + 'extra key': {'start': 0.0, 'y': 0.0, 'z': 1.0}, + 'non-directional shape': {'x': 0.0, 'y': 0.0}, + 'non-finite start': {'start': double.infinity, 'y': 0.0}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(alignmentDirectionalCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + }); + + group('alignmentGeometryCodec', () { + test('decodes regular names and {x, y} to Alignment', () { + expect(alignmentGeometryCodec.parse('topLeft'), Alignment.topLeft); + expect(alignmentGeometryCodec.parse('topLeft'), isA()); + + final fromObject = alignmentGeometryCodec.parse({'x': 0.25, 'y': -0.5}); + expect(fromObject, const Alignment(0.25, -0.5)); + expect(fromObject, isA()); + }); + + test( + 'decodes directional names and {start, y} to AlignmentDirectional', + () { + expect( + alignmentGeometryCodec.parse('topStart'), + AlignmentDirectional.topStart, + ); + expect( + alignmentGeometryCodec.parse('topStart'), + isA(), + ); + + final fromObject = alignmentGeometryCodec.parse({ + 'start': -1.0, + 'y': 0.0, + }); + expect(fromObject, const AlignmentDirectional(-1, 0)); + expect(fromObject, isA()); + }, + ); + + test('resolves the shared "center" name to Alignment, not directional', () { + // Alignment.center == AlignmentDirectional.center, so assert the type. + expect(alignmentGeometryCodec.parse('center'), isA()); + expect( + alignmentGeometryCodec.parse('center'), + isNot(isA()), + ); + }); + + test('round-trips preserve the runtime type', () { + final alignment = alignmentGeometryCodec.parse({'x': 0.25, 'y': -0.5})!; + expect(alignment, isA()); + expect(alignmentGeometryCodec.encode(alignment), {'x': 0.25, 'y': -0.5}); + + final directional = alignmentGeometryCodec.parse({ + 'start': 0.25, + 'y': -0.5, + })!; + expect(directional, isA()); + expect(alignmentGeometryCodec.encode(directional), { + 'start': 0.25, + 'y': -0.5, + }); + }); + + test('encodes Alignment back to named/object', () { + expect(alignmentGeometryCodec.encode(Alignment.center), 'center'); + final encoded = alignmentGeometryCodec.encode( + const Alignment(0.25, -0.5), + ); + expect(encoded, {'x': 0.25, 'y': -0.5}); + expectJsonSafe(encoded); + }); + + test('encodes AlignmentDirectional back to named/object', () { + expect( + alignmentGeometryCodec.encode(AlignmentDirectional.topStart), + 'topStart', + ); + final encoded = alignmentGeometryCodec.encode( + const AlignmentDirectional(0.25, -0.5), + ); + expect(encoded, {'start': 0.25, 'y': -0.5}); + expectJsonSafe(encoded); + }); + + group('rejects invalid input', () { + const invalidCases = { + 'unknown name': 'middle', + 'mixed keys': {'x': 0.0, 'y': 0.0, 'start': 0.0}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(alignmentGeometryCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + }); +} diff --git a/packages/flutter_codec/test/primitives/border_radius_test.dart b/packages/flutter_codec/test/primitives/border_radius_test.dart new file mode 100644 index 00000000..9b6b9937 --- /dev/null +++ b/packages/flutter_codec/test/primitives/border_radius_test.dart @@ -0,0 +1,226 @@ +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('borderRadiusCodec decode', () { + test('decodes a number as all circular corners', () { + expect(borderRadiusCodec.parse(8), BorderRadius.circular(8)); + }); + + test('decodes {x, y} as all elliptical corners', () { + expect( + borderRadiusCodec.parse({'x': 8, 'y': 4}), + BorderRadius.all(const Radius.elliptical(8, 4)), + ); + }); + + test('decodes a full per-corner object', () { + expect( + borderRadiusCodec.parse({ + 'topLeft': 1, + 'topRight': 2, + 'bottomLeft': 3, + 'bottomRight': 4, + }), + const BorderRadius.only( + topLeft: Radius.circular(1), + topRight: Radius.circular(2), + bottomLeft: Radius.circular(3), + bottomRight: Radius.circular(4), + ), + ); + }); + + test('applies per-corner defaults to a partial object', () { + expect( + borderRadiusCodec.parse({'topLeft': 8}), + const BorderRadius.only(topLeft: Radius.circular(8)), + ); + }); + + test('decodes an empty object as BorderRadius.zero', () { + expect(borderRadiusCodec.parse({}), BorderRadius.zero); + }); + }); + + group('borderRadiusCodec encode', () { + test('collapses uniform circular corners to a number', () { + final encoded = borderRadiusCodec.encode(BorderRadius.circular(8)); + expect(encoded, 8.0); + expectJsonSafe(encoded); + }); + + test('collapses uniform elliptical corners to {x, y}', () { + final encoded = borderRadiusCodec.encode( + BorderRadius.all(const Radius.elliptical(8, 4)), + ); + expect(encoded, {'x': 8.0, 'y': 4.0}); + expectJsonSafe(encoded); + }); + + test('emits the full corner object when corners differ', () { + final encoded = borderRadiusCodec.encode( + const BorderRadius.only(topLeft: Radius.circular(8)), + ); + expect(encoded, { + 'topLeft': 8.0, + 'topRight': 0.0, + 'bottomLeft': 0.0, + 'bottomRight': 0.0, + }); + expectJsonSafe(encoded); + }); + }); + + group('borderRadiusCodec rejects invalid input', () { + const invalidCases = { + 'directional shape': { + 'topStart': 8, + 'topEnd': 0, + 'bottomStart': 0, + 'bottomEnd': 0, + }, + 'unknown key': {'topLeft': 8, 'z': 1}, + 'negative corner': {'topLeft': -1}, + 'non-finite corner': {'topLeft': double.infinity}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(borderRadiusCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + + group('borderRadiusDirectionalCodec', () { + test('decodes a full per-corner object', () { + expect( + borderRadiusDirectionalCodec.parse({ + 'topStart': 1, + 'topEnd': 2, + 'bottomStart': 3, + 'bottomEnd': 4, + }), + const BorderRadiusDirectional.only( + topStart: Radius.circular(1), + topEnd: Radius.circular(2), + bottomStart: Radius.circular(3), + bottomEnd: Radius.circular(4), + ), + ); + }); + + test('applies per-corner defaults to a partial object', () { + expect( + borderRadiusDirectionalCodec.parse({'topStart': 8}), + const BorderRadiusDirectional.only(topStart: Radius.circular(8)), + ); + }); + + test('decodes an empty object as BorderRadiusDirectional.zero', () { + expect( + borderRadiusDirectionalCodec.parse({}), + BorderRadiusDirectional.zero, + ); + }); + + test('always encodes to the full object, even when uniform', () { + final encoded = borderRadiusDirectionalCodec.encode( + BorderRadiusDirectional.all(const Radius.circular(8)), + ); + expect(encoded, { + 'topStart': 8.0, + 'topEnd': 8.0, + 'bottomStart': 8.0, + 'bottomEnd': 8.0, + }); + expectJsonSafe(encoded); + }); + + group('rejects invalid input', () { + const invalidCases = { + 'a scalar': 8, + 'non-directional shape': { + 'topLeft': 8, + 'topRight': 0, + 'bottomLeft': 0, + 'bottomRight': 0, + }, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(borderRadiusDirectionalCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + }); + + group('borderRadiusGeometryCodec', () { + test('decodes shorthand / {topLeft,...} / {} to BorderRadius', () { + expect(borderRadiusGeometryCodec.parse(8), isA()); + expect(borderRadiusGeometryCodec.parse(8), BorderRadius.circular(8)); + + final fromObject = borderRadiusGeometryCodec.parse({'topLeft': 8}); + expect(fromObject, isA()); + expect(fromObject, const BorderRadius.only(topLeft: Radius.circular(8))); + + expect(borderRadiusGeometryCodec.parse({}), isA()); + }); + + test('decodes {topStart,...} to BorderRadiusDirectional', () { + final value = borderRadiusGeometryCodec.parse({'topStart': 8}); + expect(value, isA()); + expect( + value, + const BorderRadiusDirectional.only(topStart: Radius.circular(8)), + ); + }); + + test('encodes BorderRadius back to shorthand/object', () { + expect(borderRadiusGeometryCodec.encode(BorderRadius.circular(8)), 8.0); + final encoded = borderRadiusGeometryCodec.encode( + const BorderRadius.only(topLeft: Radius.circular(8)), + ); + expect(encoded, { + 'topLeft': 8.0, + 'topRight': 0.0, + 'bottomLeft': 0.0, + 'bottomRight': 0.0, + }); + expectJsonSafe(encoded); + }); + + test('directional round-trips as BorderRadiusDirectional', () { + final encoded = borderRadiusGeometryCodec.encode( + BorderRadiusDirectional.all(const Radius.circular(8)), + ); + expect(encoded, { + 'topStart': 8.0, + 'topEnd': 8.0, + 'bottomStart': 8.0, + 'bottomEnd': 8.0, + }); + expect( + borderRadiusGeometryCodec.parse(encoded), + isA(), + ); + }); + + group('rejects invalid input', () { + const invalidCases = { + 'mixed keys': {'topLeft': 8, 'topStart': 8}, + 'unknown key': {'z': 1}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(borderRadiusGeometryCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + }); +} diff --git a/packages/flutter_codec/test/primitives/edge_insets_test.dart b/packages/flutter_codec/test/primitives/edge_insets_test.dart new file mode 100644 index 00000000..1a9450cb --- /dev/null +++ b/packages/flutter_codec/test/primitives/edge_insets_test.dart @@ -0,0 +1,176 @@ +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('edgeInsetsCodec decode', () { + test('decodes a number as all sides', () { + expect(edgeInsetsCodec.parse(16), const EdgeInsets.all(16)); + }); + + test('decodes a full {left, top, right, bottom} object', () { + expect( + edgeInsetsCodec.parse({'left': 1, 'top': 2, 'right': 3, 'bottom': 4}), + const EdgeInsets.fromLTRB(1, 2, 3, 4), + ); + }); + + test('applies per-side defaults to a partial object', () { + expect( + edgeInsetsCodec.parse({'left': 8}), + const EdgeInsets.only(left: 8), + ); + }); + + test('decodes an empty object as EdgeInsets.zero', () { + expect(edgeInsetsCodec.parse({}), EdgeInsets.zero); + }); + }); + + group('edgeInsetsCodec encode', () { + test('collapses a uniform inset to a scalar', () { + final encoded = edgeInsetsCodec.encode(const EdgeInsets.all(16)); + expect(encoded, 16.0); + expectJsonSafe(encoded); + }); + + test('encodes EdgeInsets.zero as 0', () { + final encoded = edgeInsetsCodec.encode(EdgeInsets.zero); + expect(encoded, 0.0); + expectJsonSafe(encoded); + }); + + test('emits the full object when sides differ', () { + final encoded = edgeInsetsCodec.encode( + const EdgeInsets.only(left: 8, top: 4), + ); + expect(encoded, {'left': 8.0, 'top': 4.0, 'right': 0.0, 'bottom': 0.0}); + expectJsonSafe(encoded); + }); + }); + + group('edgeInsetsCodec rejects invalid input', () { + const invalidCases = { + 'directional shape': {'start': 8, 'top': 0, 'end': 0, 'bottom': 0}, + 'unknown key': {'left': 8, 'z': 1}, + 'non-finite scalar': double.infinity, + 'non-finite side': {'left': double.infinity}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(edgeInsetsCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + + group('edgeInsetsDirectionalCodec', () { + test('decodes a full {start, top, end, bottom} object', () { + expect( + edgeInsetsDirectionalCodec.parse({ + 'start': 1, + 'top': 2, + 'end': 3, + 'bottom': 4, + }), + const EdgeInsetsDirectional.fromSTEB(1, 2, 3, 4), + ); + }); + + test('applies per-side defaults to a partial object', () { + expect( + edgeInsetsDirectionalCodec.parse({'start': 8}), + const EdgeInsetsDirectional.only(start: 8), + ); + }); + + test('decodes an empty object as EdgeInsetsDirectional.zero', () { + expect(edgeInsetsDirectionalCodec.parse({}), EdgeInsetsDirectional.zero); + }); + + test('always encodes to the full object, even when uniform', () { + final encoded = edgeInsetsDirectionalCodec.encode( + const EdgeInsetsDirectional.all(8), + ); + expect(encoded, {'start': 8.0, 'top': 8.0, 'end': 8.0, 'bottom': 8.0}); + expectJsonSafe(encoded); + }); + + group('rejects invalid input', () { + const invalidCases = { + 'a scalar': 8, + 'non-directional shape': {'left': 8, 'top': 0, 'right': 0, 'bottom': 0}, + 'non-finite side': {'start': double.infinity}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(edgeInsetsDirectionalCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + }); + + group('edgeInsetsGeometryCodec', () { + test('decodes scalar / {left,...} / {} to EdgeInsets', () { + expect(edgeInsetsGeometryCodec.parse(16), isA()); + expect(edgeInsetsGeometryCodec.parse(16), const EdgeInsets.all(16)); + + final fromObject = edgeInsetsGeometryCodec.parse({'left': 8}); + expect(fromObject, isA()); + expect(fromObject, const EdgeInsets.only(left: 8)); + + expect(edgeInsetsGeometryCodec.parse({}), isA()); + }); + + test('decodes {start,...} to EdgeInsetsDirectional', () { + final value = edgeInsetsGeometryCodec.parse({'start': 8}); + expect(value, isA()); + expect(value, const EdgeInsetsDirectional.only(start: 8)); + }); + + test('encodes EdgeInsets back to scalar/object', () { + expect(edgeInsetsGeometryCodec.encode(const EdgeInsets.all(16)), 16.0); + final encoded = edgeInsetsGeometryCodec.encode( + const EdgeInsets.only(left: 8, top: 4), + ); + expect(encoded, {'left': 8.0, 'top': 4.0, 'right': 0.0, 'bottom': 0.0}); + expectJsonSafe(encoded); + }); + + test('encodes EdgeInsetsDirectional back to its object', () { + final encoded = edgeInsetsGeometryCodec.encode( + const EdgeInsetsDirectional.only(start: 8), + ); + expect(encoded, {'start': 8.0, 'top': 0.0, 'end': 0.0, 'bottom': 0.0}); + expectJsonSafe(encoded); + }); + + test('directional zero round-trips as EdgeInsetsDirectional', () { + // EdgeInsets.zero == EdgeInsetsDirectional.zero, so assert the type. + final encoded = edgeInsetsGeometryCodec.encode( + EdgeInsetsDirectional.zero, + ); + expect(encoded, {'start': 0.0, 'top': 0.0, 'end': 0.0, 'bottom': 0.0}); + expect( + edgeInsetsGeometryCodec.parse(encoded), + isA(), + ); + }); + + group('rejects invalid input', () { + const invalidCases = { + 'mixed keys': {'left': 8, 'start': 8}, + 'unknown key': {'z': 1}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(edgeInsetsGeometryCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + }); +} diff --git a/packages/flutter_codec/test/primitives/offset_test.dart b/packages/flutter_codec/test/primitives/offset_test.dart index 6acedbba..bbd57957 100644 --- a/packages/flutter_codec/test/primitives/offset_test.dart +++ b/packages/flutter_codec/test/primitives/offset_test.dart @@ -18,5 +18,13 @@ void main() { test('rejects missing coordinates', () { expect(offsetCodec.safeParse({'x': 12}).isFail, isTrue); }); + + test('rejects non-finite coordinates', () { + expect( + offsetCodec.safeParse({'x': double.infinity, 'y': 0}).isFail, + isTrue, + ); + expect(offsetCodec.safeParse({'x': 0, 'y': double.nan}).isFail, isTrue); + }); }); } diff --git a/packages/flutter_codec/test/primitives/radius_test.dart b/packages/flutter_codec/test/primitives/radius_test.dart index f541a106..b37aba6f 100644 --- a/packages/flutter_codec/test/primitives/radius_test.dart +++ b/packages/flutter_codec/test/primitives/radius_test.dart @@ -41,5 +41,13 @@ void main() { test('rejects negative elliptical coordinates', () { expect(radiusCodec.safeParse({'x': 1, 'y': -1}).isFail, isTrue); }); + + test('rejects non-finite radii', () { + expect(radiusCodec.safeParse(double.infinity).isFail, isTrue); + expect( + radiusCodec.safeParse({'x': double.infinity, 'y': 1}).isFail, + isTrue, + ); + }); }); } From 5b3bb94fcff0f42a37e7c4a33bc45059965140e9 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 13:28:29 -0400 Subject: [PATCH 22/53] fix(ack): align finite constraint metadata --- docs/api-reference/index.mdx | 28 +++++++++---------- packages/ack/CHANGELOG.md | 12 ++++++++ .../constraints/number_finite_constraint.dart | 2 +- .../constraints/constraint_equality_test.dart | 5 ++++ 4 files changed, 32 insertions(+), 15 deletions(-) diff --git a/docs/api-reference/index.mdx b/docs/api-reference/index.mdx index cbe0f95f..c540b3c1 100644 --- a/docs/api-reference/index.mdx +++ b/docs/api-reference/index.mdx @@ -37,33 +37,33 @@ Entry point for creating schemas. See [Schema Types](../core-concepts/schemas.md fields are allowed, and conflicts are rejected. Exported/generated branches expose the exact branch literal. -## `AckSchema` (Base Class) +## `AckSchema` (Base Class) Base class for all schema types. ### Primary Validation Methods -- `SchemaResult safeParse(Object? data, {String? debugName})`: Validates the input data and returns a result. Never throws exceptions - returns `SchemaResult` with either success or failure. Use `safeParse(...).getOrNull()` to obtain the validated value with no exception. -- `T? parse(Object? data, {String? debugName})`: Validates the input data and returns the value. Throws `AckException` if validation fails. -- `SchemaResult safeParseAs(Object? data, TOut Function(T?) map, {String? debugName})`: Parses and maps the validated value to another type. -- `TOut parseAs(Object? data, TOut Function(T?) map, {String? debugName})`: Throwing variant of `safeParseAs`. -- `SchemaResult safeEncode(T? value, {String? debugName})`: Encodes a runtime value back to the boundary representation. -- `Boundary? encode(T? value, {String? debugName})`: Throwing variant of `safeEncode`. +- `SchemaResult safeParse(Object? data, {String? debugName})`: Validates the input data and returns a result. Never throws exceptions - returns `SchemaResult` with either success or failure. Use `safeParse(...).getOrNull()` to obtain the validated value with no exception. +- `Runtime? parse(Object? data, {String? debugName})`: Validates the input data and returns the value. Throws `AckException` if validation fails. +- `SchemaResult safeParseAs(Object? data, TOut Function(Runtime?) map, {String? debugName})`: Parses and maps the validated value to another type. +- `TOut parseAs(Object? data, TOut Function(Runtime?) map, {String? debugName})`: Throwing variant of `safeParseAs`. +- `SchemaResult safeEncode(Runtime? value, {String? debugName})`: Encodes a runtime value back to the boundary representation. +- `Boundary? encode(Runtime? value, {String? debugName})`: Throwing variant of `safeEncode`. ### Schema Modification Methods -- `AckSchema nullable()`: Returns a new schema that also accepts `null` values. -- `AckSchema optional({bool value = true})`: Returns a new schema marked as optional (for object fields). -- `AckSchema describe(String description)`: Adds a description for documentation and JSON Schema generation. -- `AckSchema withDefault(T value)`: Wraps the schema in a `DefaultSchema` that supplies `value` when the parse input is `null`. +- `AckSchema nullable({bool value = true})`: Returns a new schema that also accepts `null` values. +- `AckSchema optional({bool value = true})`: Returns a new schema marked as optional (for object fields). +- `AckSchema describe(String description)`: Adds a description for documentation and JSON Schema generation. +- `DefaultSchema withDefault(Runtime value)`: Wraps the schema in a `DefaultSchema` that supplies `value` when the parse input is `null`. Primitive schemas (`StringSchema`, `IntegerSchema`, `DoubleSchema`, `NumberSchema`, `BooleanSchema`) are strict — they reject values whose Dart runtime type doesn't match. `IntegerSchema` and `DoubleSchema` do not overlap (`42.0` fails `Ack.integer()`, `42` fails `Ack.double()`); use `Ack.number()` when either is acceptable. For non-`num` boundary types (e.g. numeric strings), use [`transform`](../core-concepts/schemas.mdx#transformations) or [`codec`](#codecschemaboundary-runtime) to convert before validation. ### Custom Validation Methods -- `AckSchema constrain(Constraint constraint, {String? message})`: Applies a custom validation constraint. -- `AckSchema withConstraint(Constraint constraint)`: Applies a custom validation constraint (alias for `constrain`). -- `AckSchema refine(bool Function(T) validate, {String message})`: Adds custom validation logic with an optional custom error message. +- `AckSchema constrain(Constraint constraint, {String? message})`: Applies a custom validation constraint. +- `AckSchema withConstraint(Constraint constraint)`: Applies a custom validation constraint (alias for `constrain`). +- `AckSchema refine(bool Function(Runtime) validate, {String message})`: Adds custom validation logic with an optional custom error message. - `CodecSchema transform(R Function(Runtime) transformer)`: Transforms validated runtime values to a different type. ### Utility Methods diff --git a/packages/ack/CHANGELOG.md b/packages/ack/CHANGELOG.md index 15306f76..de83083e 100644 --- a/packages/ack/CHANGELOG.md +++ b/packages/ack/CHANGELOG.md @@ -2,6 +2,9 @@ ### Breaking Changes +* `DoubleSchema` and `NumberSchema` now reject non-finite values (`NaN`, + `Infinity`, `-Infinity`) during runtime validation by default, aligning + numeric schemas with JSON-safe values. * Remove the retired JSON Schema DTO converter APIs. * Replace the interim JSON Schema model kind API with sealed `AckSchemaModel` variants and canonical `AckSchema.toSchemaModel()` @@ -14,6 +17,9 @@ code expects every value-shape to be a `CodecSchema` (e.g. a registry of codecs). Decode/encode are identity since `EnumSchema` already maps between `T` and the enum's `.name`. +* `NumberSchemaExtensions` adds fluent numeric constraints to `Ack.number()`: + `.min`, `.max`, `.greaterThan`, `.lessThan`, `.positive`, `.negative`, and + `.multipleOf`. ### Changed @@ -21,6 +27,12 @@ * Preserve defaults, const values, extension keywords, transformed metadata, composition, and JSON Schema constraints through the schema model boundary. +### Migration + +* Re-run tests for code paths that parse or encode `double`/`num` values. If a + boundary must accept `NaN` or infinities, model that value outside the JSON + numeric schema path before validation. + ## 1.0.0-beta.11 * See [release notes](https://github.com/btwld/ack/releases/tag/v1.0.0-beta.11) for details. diff --git a/packages/ack/lib/src/constraints/number_finite_constraint.dart b/packages/ack/lib/src/constraints/number_finite_constraint.dart index 790b230e..8662da7e 100644 --- a/packages/ack/lib/src/constraints/number_finite_constraint.dart +++ b/packages/ack/lib/src/constraints/number_finite_constraint.dart @@ -5,7 +5,7 @@ class NumberFiniteConstraint extends Constraint with Validator { const NumberFiniteConstraint() : super( - constraintKey: 'double.isFinite', + constraintKey: 'number.isFinite', description: 'Value must be a finite number.', ); diff --git a/packages/ack/test/constraints/constraint_equality_test.dart b/packages/ack/test/constraints/constraint_equality_test.dart index 656210c3..ae1416c1 100644 --- a/packages/ack/test/constraints/constraint_equality_test.dart +++ b/packages/ack/test/constraints/constraint_equality_test.dart @@ -158,6 +158,11 @@ void main() { expect(a, equals(b)); expect(a.hashCode, equals(b.hashCode)); }); + + test('uses generic number constraint key', () { + const constraint = NumberFiniteConstraint(); + expect(constraint.constraintKey, 'number.isFinite'); + }); }); group('NumberSafeIntegerConstraint', () { From d06d7f78d6cd87a12d150753a562fdc145241c2b Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 13:32:19 -0400 Subject: [PATCH 23/53] chore: remove flutter codec package from implementation branch --- packages/flutter_codec/README.md | 8 - packages/flutter_codec/analysis_options.yaml | 9 - packages/flutter_codec/lib/flutter_codec.dart | 6 - packages/flutter_codec/lib/src/borders.dart | 75 ------ packages/flutter_codec/lib/src/enums.dart | 142 ----------- packages/flutter_codec/lib/src/numbers.dart | 25 -- .../flutter_codec/lib/src/primitives.dart | 6 - .../lib/src/primitives/alignment.dart | 112 --------- .../lib/src/primitives/border_radius.dart | 93 ------- .../lib/src/primitives/color.dart | 95 -------- .../lib/src/primitives/edge_insets.dart | 93 ------- .../lib/src/primitives/offset.dart | 11 - .../lib/src/primitives/radius.dart | 32 --- packages/flutter_codec/pubspec.yaml | 21 -- .../test/borders/borders_test.dart | 142 ----------- .../flutter_codec/test/enums/enums_test.dart | 205 ---------------- .../test/primitives/alignment_test.dart | 208 ---------------- .../test/primitives/border_radius_test.dart | 226 ------------------ .../test/primitives/color_test.dart | 51 ---- .../test/primitives/edge_insets_test.dart | 176 -------------- .../test/primitives/offset_test.dart | 30 --- .../test/primitives/radius_test.dart | 53 ---- .../test/support/json_safety.dart | 45 ---- .../test/support/json_safety_test.dart | 48 ---- pubspec.yaml | 2 - 25 files changed, 1914 deletions(-) delete mode 100644 packages/flutter_codec/README.md delete mode 100644 packages/flutter_codec/analysis_options.yaml delete mode 100644 packages/flutter_codec/lib/flutter_codec.dart delete mode 100644 packages/flutter_codec/lib/src/borders.dart delete mode 100644 packages/flutter_codec/lib/src/enums.dart delete mode 100644 packages/flutter_codec/lib/src/numbers.dart delete mode 100644 packages/flutter_codec/lib/src/primitives.dart delete mode 100644 packages/flutter_codec/lib/src/primitives/alignment.dart delete mode 100644 packages/flutter_codec/lib/src/primitives/border_radius.dart delete mode 100644 packages/flutter_codec/lib/src/primitives/color.dart delete mode 100644 packages/flutter_codec/lib/src/primitives/edge_insets.dart delete mode 100644 packages/flutter_codec/lib/src/primitives/offset.dart delete mode 100644 packages/flutter_codec/lib/src/primitives/radius.dart delete mode 100644 packages/flutter_codec/pubspec.yaml delete mode 100644 packages/flutter_codec/test/borders/borders_test.dart delete mode 100644 packages/flutter_codec/test/enums/enums_test.dart delete mode 100644 packages/flutter_codec/test/primitives/alignment_test.dart delete mode 100644 packages/flutter_codec/test/primitives/border_radius_test.dart delete mode 100644 packages/flutter_codec/test/primitives/color_test.dart delete mode 100644 packages/flutter_codec/test/primitives/edge_insets_test.dart delete mode 100644 packages/flutter_codec/test/primitives/offset_test.dart delete mode 100644 packages/flutter_codec/test/primitives/radius_test.dart delete mode 100644 packages/flutter_codec/test/support/json_safety.dart delete mode 100644 packages/flutter_codec/test/support/json_safety_test.dart diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md deleted file mode 100644 index 062c931c..00000000 --- a/packages/flutter_codec/README.md +++ /dev/null @@ -1,8 +0,0 @@ -# flutter_codec - -Flutter value codecs built on ACK schemas. - -Includes enum codecs and value codecs for `Color`, `Offset`, `Radius`, -`Alignment` / `AlignmentDirectional` / `AlignmentGeometry`, and -`EdgeInsets` / `EdgeInsetsDirectional` / `EdgeInsetsGeometry`, plus the composite -`BorderSide` codec (and its `strokeAlign` codec) that reuse them. diff --git a/packages/flutter_codec/analysis_options.yaml b/packages/flutter_codec/analysis_options.yaml deleted file mode 100644 index e147228d..00000000 --- a/packages/flutter_codec/analysis_options.yaml +++ /dev/null @@ -1,9 +0,0 @@ -include: package:lints/recommended.yaml - -analyzer: - exclude: - - "**/*.g.dart" - language: - strict-casts: true - strict-inference: true - strict-raw-types: true diff --git a/packages/flutter_codec/lib/flutter_codec.dart b/packages/flutter_codec/lib/flutter_codec.dart deleted file mode 100644 index bd13d681..00000000 --- a/packages/flutter_codec/lib/flutter_codec.dart +++ /dev/null @@ -1,6 +0,0 @@ -/// Flutter value codecs built on ACK schemas. -library; - -export 'src/borders.dart'; -export 'src/enums.dart'; -export 'src/primitives.dart'; diff --git a/packages/flutter_codec/lib/src/borders.dart b/packages/flutter_codec/lib/src/borders.dart deleted file mode 100644 index e71b6bd6..00000000 --- a/packages/flutter_codec/lib/src/borders.dart +++ /dev/null @@ -1,75 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' show BorderSide, BorderStyle, Color; - -import 'enums.dart' show borderStyleCodec; -import 'numbers.dart'; -import 'primitives/color.dart' show colorCodec; - -/// Named [BorderSide.strokeAlign] offsets, encoded as string aliases. -enum _StrokeAlign { inside, center, outside } - -/// Codec for [BorderSide.strokeAlign] values. -/// -/// Accepts the named aliases `"inside"`, `"center"`, and `"outside"` (mapping -/// to [BorderSide.strokeAlignInside], [BorderSide.strokeAlignCenter], and -/// [BorderSide.strokeAlignOutside]) as well as any finite number. Encoding -/// canonicalizes the three named offsets back to their aliases and emits any -/// other finite value as a number. -final strokeAlignCodec = Ack.codec( - input: Ack.anyOf([Ack.enumCodec(_StrokeAlign.values), finiteNumber()]), - decode: _decodeStrokeAlign, - encode: _encodeStrokeAlign, -); - -double _decodeStrokeAlign(Object value) { - if (value is num) return value.toDouble(); - - return switch (value as _StrokeAlign) { - _StrokeAlign.inside => BorderSide.strokeAlignInside, - _StrokeAlign.center => BorderSide.strokeAlignCenter, - _StrokeAlign.outside => BorderSide.strokeAlignOutside, - }; -} - -Object _encodeStrokeAlign(double value) { - return switch (value) { - BorderSide.strokeAlignInside => _StrokeAlign.inside, - BorderSide.strokeAlignCenter => _StrokeAlign.center, - BorderSide.strokeAlignOutside => _StrokeAlign.outside, - _ => value, - }; -} - -/// Codec for [BorderSide], composing [colorCodec], [borderStyleCodec], and -/// [strokeAlignCodec]. -/// -/// Missing fields fall back to Flutter's [BorderSide] constructor defaults, so -/// `{}` decodes to `const BorderSide()`. Encoding always emits a full canonical -/// object with all four fields. -final borderSideCodec = Ack.object({ - 'color': colorCodec.withDefault(const Color(0xFF000000)), - 'width': nonNegativeFiniteNumber().withDefault(1.0), - 'style': borderStyleCodec.withDefault(BorderStyle.solid), - 'strokeAlign': strokeAlignCodec.withDefault(BorderSide.strokeAlignInside), -}).model(decode: _decodeBorderSide, encode: _encodeBorderSide); - -BorderSide _decodeBorderSide(JsonMap data) { - return BorderSide( - color: data['color']! as Color, - width: readDouble(data, 'width'), - style: data['style']! as BorderStyle, - strokeAlign: data['strokeAlign']! as double, - ); -} - -// Returns runtime property values (Color, BorderStyle, double), not JSON. The -// object schema re-encodes each property through its own schema (colorCodec, -// borderStyleCodec, strokeAlignCodec) to produce the JSON-safe boundary. -JsonMap _encodeBorderSide(BorderSide value) { - return { - 'color': value.color, - 'width': value.width, - 'style': value.style, - 'strokeAlign': value.strokeAlign, - }; -} diff --git a/packages/flutter_codec/lib/src/enums.dart b/packages/flutter_codec/lib/src/enums.dart deleted file mode 100644 index 455810f8..00000000 --- a/packages/flutter_codec/lib/src/enums.dart +++ /dev/null @@ -1,142 +0,0 @@ -import 'dart:ui' show BoxHeightStyle, BoxWidthStyle; - -import 'package:ack/ack.dart'; -import 'package:flutter/foundation.dart' show Brightness, TargetPlatform; -import 'package:flutter/gestures.dart' show DragStartBehavior; -import 'package:flutter/material.dart' show MaterialTapTargetSize, ThemeMode; -import 'package:flutter/painting.dart' - show - Axis, - AxisDirection, - BlendMode, - BlurStyle, - BorderStyle, - BoxFit, - BoxShape, - Clip, - FilterQuality, - FontStyle, - ImageRepeat, - PaintingStyle, - PathFillType, - PlaceholderAlignment, - StrokeCap, - StrokeJoin, - TextAlign, - TextBaseline, - TextDecorationStyle, - TextDirection, - TextLeadingDistribution, - TextOverflow, - TextWidthBasis, - TileMode, - VerticalDirection; -import 'package:flutter/rendering.dart' - show - CrossAxisAlignment, - DecorationPosition, - FlexFit, - GrowthDirection, - HitTestBehavior, - MainAxisAlignment, - MainAxisSize, - ScrollDirection, - StackFit, - WrapAlignment, - WrapCrossAlignment; -import 'package:flutter/services.dart' show TextCapitalization; -import 'package:flutter/widgets.dart' show ScrollViewKeyboardDismissBehavior; - -final axisCodec = Ack.enumCodec(Axis.values); - -final axisDirectionCodec = Ack.enumCodec(AxisDirection.values); - -final blendModeCodec = Ack.enumCodec(BlendMode.values); - -final blurStyleCodec = Ack.enumCodec(BlurStyle.values); - -final borderStyleCodec = Ack.enumCodec(BorderStyle.values); - -final boxFitCodec = Ack.enumCodec(BoxFit.values); - -final boxHeightStyleCodec = Ack.enumCodec(BoxHeightStyle.values); - -final boxShapeCodec = Ack.enumCodec(BoxShape.values); - -final boxWidthStyleCodec = Ack.enumCodec(BoxWidthStyle.values); - -final brightnessCodec = Ack.enumCodec(Brightness.values); - -final clipCodec = Ack.enumCodec(Clip.values); - -final crossAxisAlignmentCodec = Ack.enumCodec(CrossAxisAlignment.values); - -final decorationPositionCodec = Ack.enumCodec(DecorationPosition.values); - -final dragStartBehaviorCodec = Ack.enumCodec(DragStartBehavior.values); - -final filterQualityCodec = Ack.enumCodec(FilterQuality.values); - -final flexFitCodec = Ack.enumCodec(FlexFit.values); - -final fontStyleCodec = Ack.enumCodec(FontStyle.values); - -final growthDirectionCodec = Ack.enumCodec(GrowthDirection.values); - -final hitTestBehaviorCodec = Ack.enumCodec(HitTestBehavior.values); - -final imageRepeatCodec = Ack.enumCodec(ImageRepeat.values); - -final mainAxisAlignmentCodec = Ack.enumCodec(MainAxisAlignment.values); - -final mainAxisSizeCodec = Ack.enumCodec(MainAxisSize.values); - -final materialTapTargetSizeCodec = Ack.enumCodec(MaterialTapTargetSize.values); - -final paintingStyleCodec = Ack.enumCodec(PaintingStyle.values); - -final pathFillTypeCodec = Ack.enumCodec(PathFillType.values); - -final placeholderAlignmentCodec = Ack.enumCodec(PlaceholderAlignment.values); - -final scrollDirectionCodec = Ack.enumCodec(ScrollDirection.values); - -final scrollViewKeyboardDismissBehaviorCodec = Ack.enumCodec( - ScrollViewKeyboardDismissBehavior.values, -); - -final stackFitCodec = Ack.enumCodec(StackFit.values); - -final strokeCapCodec = Ack.enumCodec(StrokeCap.values); - -final strokeJoinCodec = Ack.enumCodec(StrokeJoin.values); - -final targetPlatformCodec = Ack.enumCodec(TargetPlatform.values); - -final textAlignCodec = Ack.enumCodec(TextAlign.values); - -final textBaselineCodec = Ack.enumCodec(TextBaseline.values); - -final textCapitalizationCodec = Ack.enumCodec(TextCapitalization.values); - -final textDecorationStyleCodec = Ack.enumCodec(TextDecorationStyle.values); - -final textDirectionCodec = Ack.enumCodec(TextDirection.values); - -final textLeadingDistributionCodec = Ack.enumCodec( - TextLeadingDistribution.values, -); - -final textOverflowCodec = Ack.enumCodec(TextOverflow.values); - -final textWidthBasisCodec = Ack.enumCodec(TextWidthBasis.values); - -final themeModeCodec = Ack.enumCodec(ThemeMode.values); - -final tileModeCodec = Ack.enumCodec(TileMode.values); - -final verticalDirectionCodec = Ack.enumCodec(VerticalDirection.values); - -final wrapAlignmentCodec = Ack.enumCodec(WrapAlignment.values); - -final wrapCrossAlignmentCodec = Ack.enumCodec(WrapCrossAlignment.values); diff --git a/packages/flutter_codec/lib/src/numbers.dart b/packages/flutter_codec/lib/src/numbers.dart deleted file mode 100644 index c3e66ed1..00000000 --- a/packages/flutter_codec/lib/src/numbers.dart +++ /dev/null @@ -1,25 +0,0 @@ -import 'package:ack/ack.dart'; - -/// A finite number — rejects `NaN` and the infinities, which are never valid -/// for Flutter measurements and are not JSON-safe. -NumberSchema finiteNumber() { - return Ack.number().refine( - (value) => value.isFinite, - message: 'Expected a finite number.', - ); -} - -/// A finite, non-negative number. -NumberSchema nonNegativeFiniteNumber() { - return Ack.number().refine( - (value) => value.isFinite && value >= 0, - message: 'Expected a finite, non-negative number.', - ); -} - -/// Reads the required numeric field [key] from a decoded [map] as a `double`. -/// -/// The schema has already validated the field, so the value is present and a -/// `num`; this just centralises the `as num` cast and `toDouble` conversion -/// shared by the object-shaped codec decoders. -double readDouble(JsonMap map, String key) => (map[key]! as num).toDouble(); diff --git a/packages/flutter_codec/lib/src/primitives.dart b/packages/flutter_codec/lib/src/primitives.dart deleted file mode 100644 index b2a3416c..00000000 --- a/packages/flutter_codec/lib/src/primitives.dart +++ /dev/null @@ -1,6 +0,0 @@ -export 'primitives/alignment.dart'; -export 'primitives/border_radius.dart'; -export 'primitives/color.dart'; -export 'primitives/edge_insets.dart'; -export 'primitives/offset.dart'; -export 'primitives/radius.dart'; diff --git a/packages/flutter_codec/lib/src/primitives/alignment.dart b/packages/flutter_codec/lib/src/primitives/alignment.dart deleted file mode 100644 index 778d71c3..00000000 --- a/packages/flutter_codec/lib/src/primitives/alignment.dart +++ /dev/null @@ -1,112 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' - show Alignment, AlignmentDirectional, AlignmentGeometry; - -import '../numbers.dart'; - -/// Named [Alignment] constants, encoded as string aliases. -enum _Alignment { - topLeft(Alignment.topLeft), - topCenter(Alignment.topCenter), - topRight(Alignment.topRight), - centerLeft(Alignment.centerLeft), - center(Alignment.center), - centerRight(Alignment.centerRight), - bottomLeft(Alignment.bottomLeft), - bottomCenter(Alignment.bottomCenter), - bottomRight(Alignment.bottomRight); - - const _Alignment(this.value); - - final Alignment value; -} - -/// Codec for [Alignment]. Named constants (`"center"`, `"topLeft"`, …) encode -/// and decode as strings; arbitrary values use `{"x": ..., "y": ...}`. Encoding -/// emits the name when the value matches a constant, otherwise the object. -final alignmentCodec = Ack.codec( - input: Ack.anyOf([ - Ack.enumCodec(_Alignment.values), - Ack.object({'x': finiteNumber(), 'y': finiteNumber()}), - ]), - decode: _decodeAlignment, - encode: _encodeAlignment, -); - -Alignment _decodeAlignment(Object value) { - if (value is _Alignment) return value.value; - - final map = value as JsonMap; - return Alignment(readDouble(map, 'x'), readDouble(map, 'y')); -} - -Object _encodeAlignment(Alignment value) { - for (final named in _Alignment.values) { - if (named.value == value) return named; - } - - return {'x': value.x, 'y': value.y}; -} - -/// Named [AlignmentDirectional] constants, encoded as string aliases. -enum _AlignmentDirectional { - topStart(AlignmentDirectional.topStart), - topCenter(AlignmentDirectional.topCenter), - topEnd(AlignmentDirectional.topEnd), - centerStart(AlignmentDirectional.centerStart), - center(AlignmentDirectional.center), - centerEnd(AlignmentDirectional.centerEnd), - bottomStart(AlignmentDirectional.bottomStart), - bottomCenter(AlignmentDirectional.bottomCenter), - bottomEnd(AlignmentDirectional.bottomEnd); - - const _AlignmentDirectional(this.value); - - final AlignmentDirectional value; -} - -/// Codec for [AlignmentDirectional]. Named constants (`"centerStart"`, -/// `"topEnd"`, …) encode and decode as strings; arbitrary values use -/// `{"start": ..., "y": ...}`. Encoding emits the name when the value matches a -/// constant, otherwise the object. -final alignmentDirectionalCodec = - Ack.codec( - input: Ack.anyOf([ - Ack.enumCodec(_AlignmentDirectional.values), - Ack.object({'start': finiteNumber(), 'y': finiteNumber()}), - ]), - decode: _decodeAlignmentDirectional, - encode: _encodeAlignmentDirectional, - ); - -AlignmentDirectional _decodeAlignmentDirectional(Object value) { - if (value is _AlignmentDirectional) return value.value; - - final map = value as JsonMap; - return AlignmentDirectional(readDouble(map, 'start'), readDouble(map, 'y')); -} - -Object _encodeAlignmentDirectional(AlignmentDirectional value) { - for (final named in _AlignmentDirectional.values) { - if (named.value == value) return named; - } - - return {'start': value.start, 'y': value.y}; -} - -/// Codec for [AlignmentGeometry], unioning [alignmentCodec] and -/// [alignmentDirectionalCodec]. -/// -/// `{x, y}` and the regular names decode to [Alignment]; `{start, y}` and the -/// directional names decode to [AlignmentDirectional]. The shared center-column -/// names (`"center"`, `"topCenter"`, `"bottomCenter"`) decode to [Alignment], -/// since [alignmentCodec] is tried first. Mixed alignments (the result of -/// adding an [Alignment] to an [AlignmentDirectional]) are not supported. -final alignmentGeometryCodec = - Ack.anyOf([ - alignmentCodec, - alignmentDirectionalCodec, - ]).codec( - decode: (value) => value as AlignmentGeometry, - encode: (value) => value, - ); diff --git a/packages/flutter_codec/lib/src/primitives/border_radius.dart b/packages/flutter_codec/lib/src/primitives/border_radius.dart deleted file mode 100644 index 54b8349a..00000000 --- a/packages/flutter_codec/lib/src/primitives/border_radius.dart +++ /dev/null @@ -1,93 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' - show BorderRadius, BorderRadiusDirectional, BorderRadiusGeometry, Radius; - -import 'radius.dart' show radiusCodec; - -/// Codec for [BorderRadius]. A single radius (a number or `{x,y}`) sets all four -/// corners; an object `{topLeft, topRight, bottomLeft, bottomRight}` (each corner -/// optional, defaulting to `Radius.zero`) sets them individually. Encoding emits -/// a single radius when all corners are equal, otherwise the full object. -final borderRadiusCodec = Ack.codec( - input: Ack.anyOf([ - radiusCodec, - Ack.object({ - 'topLeft': radiusCodec.withDefault(Radius.zero), - 'topRight': radiusCodec.withDefault(Radius.zero), - 'bottomLeft': radiusCodec.withDefault(Radius.zero), - 'bottomRight': radiusCodec.withDefault(Radius.zero), - }), - ]), - decode: _decodeBorderRadius, - encode: _encodeBorderRadius, -); - -BorderRadius _decodeBorderRadius(Object value) { - if (value is Radius) return BorderRadius.all(value); - - final map = value as JsonMap; - return BorderRadius.only( - topLeft: map['topLeft']! as Radius, - topRight: map['topRight']! as Radius, - bottomLeft: map['bottomLeft']! as Radius, - bottomRight: map['bottomRight']! as Radius, - ); -} - -Object _encodeBorderRadius(BorderRadius value) { - if (value.topLeft == value.topRight && - value.topRight == value.bottomLeft && - value.bottomLeft == value.bottomRight) { - return value.topLeft; - } - - return { - 'topLeft': value.topLeft, - 'topRight': value.topRight, - 'bottomLeft': value.bottomLeft, - 'bottomRight': value.bottomRight, - }; -} - -/// Codec for [BorderRadiusDirectional], an object -/// `{topStart, topEnd, bottomStart, bottomEnd}` (each corner optional, defaulting -/// to `Radius.zero`). Always encodes to the object form — never a shorthand — so -/// the directional type round-trips even when uniform or zero (a single radius is -/// reserved for [BorderRadius]). -final borderRadiusDirectionalCodec = - Ack.object({ - 'topStart': radiusCodec.withDefault(Radius.zero), - 'topEnd': radiusCodec.withDefault(Radius.zero), - 'bottomStart': radiusCodec.withDefault(Radius.zero), - 'bottomEnd': radiusCodec.withDefault(Radius.zero), - }).model( - decode: (data) => BorderRadiusDirectional.only( - topStart: data['topStart']! as Radius, - topEnd: data['topEnd']! as Radius, - bottomStart: data['bottomStart']! as Radius, - bottomEnd: data['bottomEnd']! as Radius, - ), - encode: (value) => { - 'topStart': value.topStart, - 'topEnd': value.topEnd, - 'bottomStart': value.bottomStart, - 'bottomEnd': value.bottomEnd, - }, - ); - -/// Codec for [BorderRadiusGeometry], unioning [borderRadiusCodec] and -/// [borderRadiusDirectionalCodec]. -/// -/// A radius shorthand, an `{topLeft, …}` object, and `{}` decode to -/// [BorderRadius]; objects carrying `topStart`/`topEnd`/`bottomStart`/`bottomEnd` -/// decode to [BorderRadiusDirectional] ([borderRadiusCodec] is tried first). -/// Encoding dispatches by runtime type. Mixed radii (from adding a [BorderRadius] -/// to a [BorderRadiusDirectional]) are not supported. -final borderRadiusGeometryCodec = - Ack.anyOf([ - borderRadiusCodec, - borderRadiusDirectionalCodec, - ]).codec( - decode: (value) => value as BorderRadiusGeometry, - encode: (value) => value, - ); diff --git a/packages/flutter_codec/lib/src/primitives/color.dart b/packages/flutter_codec/lib/src/primitives/color.dart deleted file mode 100644 index 9258bee1..00000000 --- a/packages/flutter_codec/lib/src/primitives/color.dart +++ /dev/null @@ -1,95 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' show Color; - -/// Codec for [Color]. Accepts `#RRGGBB`, `#AARRGGBB`, `rgb(r,g,b)`, and -/// `rgba(r,g,b,a)` strings; encodes to canonical hex (`#RRGGBB`, or `#AARRGGBB` -/// when translucent). -final colorCodec = Ack.codec( - input: Ack.anyOf([ - Ack.string().matches(r'^#[0-9A-Fa-f]{6}$'), - Ack.string().matches(r'^#[0-9A-Fa-f]{8}$'), - Ack.string().matches(r'^rgb\(\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*\d{1,3}\s*\)$'), - Ack.string().matches( - r'^rgba\(\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*(?:0|1|0?\.\d+|1\.0+)\s*\)$', - ), - ]), - decode: (value) => _parseColor(value as String), - encode: _encodeColor, -); - -Color _parseColor(String value) { - if (value.startsWith('#')) { - return _parseHexColor(value); - } - if (value.startsWith('rgb(')) { - return _parseRgbColor(value); - } - if (value.startsWith('rgba(')) { - return _parseRgbaColor(value); - } - throw FormatException('Unsupported color format: $value'); -} - -Color _parseHexColor(String value) { - final hex = value.substring(1); - final argb = hex.length == 6 ? 'FF$hex' : hex; - return Color(int.parse(argb, radix: 16)); -} - -Color _parseRgbColor(String value) { - final channels = _parseChannelList(value, prefix: 'rgb(', count: 3); - return Color.fromARGB(0xFF, channels[0], channels[1], channels[2]); -} - -Color _parseRgbaColor(String value) { - final channels = _parseChannelList(value, prefix: 'rgba(', count: 4); - final alpha = channels[3]; - return Color.fromARGB(alpha, channels[0], channels[1], channels[2]); -} - -List _parseChannelList( - String value, { - required String prefix, - required int count, -}) { - final rawParts = value.substring(prefix.length, value.length - 1).split(','); - if (rawParts.length != count) { - throw FormatException('Expected $count color channels.'); - } - - final rgb = rawParts - .take(3) - .map((part) { - final channel = int.parse(part.trim()); - if (channel < 0 || channel > 255) { - throw FormatException('Color channel out of range: $channel'); - } - return channel; - }) - .toList(growable: false); - - if (count == 3) return rgb; - - final alpha = double.parse(rawParts[3].trim()); - if (alpha < 0 || alpha > 1) { - throw FormatException('Alpha channel out of range: $alpha'); - } - return [...rgb, (alpha * 255).round()]; -} - -Object _encodeColor(Color value) { - final argb = value.toARGB32(); - final alpha = (argb >> 24) & 0xFF; - final red = (argb >> 16) & 0xFF; - final green = (argb >> 8) & 0xFF; - final blue = argb & 0xFF; - - if (alpha == 0xFF) { - return '#${_hex2(red)}${_hex2(green)}${_hex2(blue)}'; - } - - return '#${_hex2(alpha)}${_hex2(red)}${_hex2(green)}${_hex2(blue)}'; -} - -String _hex2(int value) => - value.toRadixString(16).padLeft(2, '0').toUpperCase(); diff --git a/packages/flutter_codec/lib/src/primitives/edge_insets.dart b/packages/flutter_codec/lib/src/primitives/edge_insets.dart deleted file mode 100644 index 9f23a74f..00000000 --- a/packages/flutter_codec/lib/src/primitives/edge_insets.dart +++ /dev/null @@ -1,93 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' - show EdgeInsets, EdgeInsetsDirectional, EdgeInsetsGeometry; - -import '../numbers.dart'; - -/// Codec for [EdgeInsets]. A bare number sets all four sides; an object -/// `{"left": ..., "top": ..., "right": ..., "bottom": ...}` (each side optional, -/// defaulting to `0`) sets them individually. Encoding emits a scalar when all -/// sides are equal, otherwise the full object. -final edgeInsetsCodec = Ack.codec( - input: Ack.anyOf([ - finiteNumber(), - Ack.object({ - 'left': finiteNumber().withDefault(0.0), - 'top': finiteNumber().withDefault(0.0), - 'right': finiteNumber().withDefault(0.0), - 'bottom': finiteNumber().withDefault(0.0), - }), - ]), - decode: _decodeEdgeInsets, - encode: _encodeEdgeInsets, -); - -EdgeInsets _decodeEdgeInsets(Object value) { - if (value is num) return EdgeInsets.all(value.toDouble()); - - final map = value as JsonMap; - return EdgeInsets.fromLTRB( - readDouble(map, 'left'), - readDouble(map, 'top'), - readDouble(map, 'right'), - readDouble(map, 'bottom'), - ); -} - -Object _encodeEdgeInsets(EdgeInsets value) { - if (value.left == value.top && - value.top == value.right && - value.right == value.bottom) { - return value.left; - } - - return { - 'left': value.left, - 'top': value.top, - 'right': value.right, - 'bottom': value.bottom, - }; -} - -/// Codec for [EdgeInsetsDirectional], an object -/// `{"start": ..., "top": ..., "end": ..., "bottom": ...}` (each side optional, -/// defaulting to `0`). Always encodes to the object form — never a scalar — so -/// the directional type round-trips even when uniform or zero (a bare number is -/// reserved for [EdgeInsets]). -final edgeInsetsDirectionalCodec = - Ack.object({ - 'start': finiteNumber().withDefault(0.0), - 'top': finiteNumber().withDefault(0.0), - 'end': finiteNumber().withDefault(0.0), - 'bottom': finiteNumber().withDefault(0.0), - }).model( - decode: (data) => EdgeInsetsDirectional.fromSTEB( - readDouble(data, 'start'), - readDouble(data, 'top'), - readDouble(data, 'end'), - readDouble(data, 'bottom'), - ), - encode: (value) => { - 'start': value.start, - 'top': value.top, - 'end': value.end, - 'bottom': value.bottom, - }, - ); - -/// Codec for [EdgeInsetsGeometry], unioning [edgeInsetsCodec] and -/// [edgeInsetsDirectionalCodec]. -/// -/// A scalar, an `{left, top, right, bottom}` object, a shared `top`/`bottom`-only -/// object, and `{}` decode to [EdgeInsets]; objects carrying `start`/`end` decode -/// to [EdgeInsetsDirectional] ([edgeInsetsCodec] is tried first). Encoding -/// dispatches by runtime type. Mixed insets (from adding an [EdgeInsets] to an -/// [EdgeInsetsDirectional]) are not supported. -final edgeInsetsGeometryCodec = - Ack.anyOf([ - edgeInsetsCodec, - edgeInsetsDirectionalCodec, - ]).codec( - decode: (value) => value as EdgeInsetsGeometry, - encode: (value) => value, - ); diff --git a/packages/flutter_codec/lib/src/primitives/offset.dart b/packages/flutter_codec/lib/src/primitives/offset.dart deleted file mode 100644 index bd36b5fe..00000000 --- a/packages/flutter_codec/lib/src/primitives/offset.dart +++ /dev/null @@ -1,11 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' show Offset; - -import '../numbers.dart'; - -/// Codec for [Offset], represented as `{"x": ..., "y": ...}`. -final offsetCodec = Ack.object({'x': finiteNumber(), 'y': finiteNumber()}) - .model( - decode: (data) => Offset(readDouble(data, 'x'), readDouble(data, 'y')), - encode: (value) => {'x': value.dx, 'y': value.dy}, - ); diff --git a/packages/flutter_codec/lib/src/primitives/radius.dart b/packages/flutter_codec/lib/src/primitives/radius.dart deleted file mode 100644 index 03735982..00000000 --- a/packages/flutter_codec/lib/src/primitives/radius.dart +++ /dev/null @@ -1,32 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' show Radius; - -import '../numbers.dart'; - -/// Codec for [Radius]. A single non-negative number is a circular radius; -/// `{"x": ..., "y": ...}` is elliptical. Circular radii encode back to a number. -final radiusCodec = Ack.codec( - input: Ack.anyOf([ - nonNegativeFiniteNumber(), - Ack.object({ - 'x': nonNegativeFiniteNumber(), - 'y': nonNegativeFiniteNumber(), - }), - ]), - decode: _decodeRadius, - encode: _encodeRadius, -); - -Radius _decodeRadius(Object value) { - if (value is num) { - return Radius.circular(value.toDouble()); - } - - final map = value as JsonMap; - return Radius.elliptical(readDouble(map, 'x'), readDouble(map, 'y')); -} - -Object _encodeRadius(Radius value) { - if (value.x == value.y) return value.x; - return {'x': value.x, 'y': value.y}; -} diff --git a/packages/flutter_codec/pubspec.yaml b/packages/flutter_codec/pubspec.yaml deleted file mode 100644 index 58feb546..00000000 --- a/packages/flutter_codec/pubspec.yaml +++ /dev/null @@ -1,21 +0,0 @@ -name: flutter_codec -description: Flutter value codecs built on ACK schemas. -version: 0.1.0 -repository: https://github.com/btwld/ack -issue_tracker: https://github.com/btwld/ack/issues -resolution: workspace - -environment: - sdk: '>=3.8.0 <4.0.0' - flutter: '>=3.16.0' - -dependencies: - ack: ^1.0.0-beta.12-wip - flutter: - sdk: flutter - -dev_dependencies: - flutter_test: - sdk: flutter - lints: ^5.0.0 - test: ^1.25.15 diff --git a/packages/flutter_codec/test/borders/borders_test.dart b/packages/flutter_codec/test/borders/borders_test.dart deleted file mode 100644 index e808682f..00000000 --- a/packages/flutter_codec/test/borders/borders_test.dart +++ /dev/null @@ -1,142 +0,0 @@ -import 'package:flutter/painting.dart'; -import 'package:flutter_codec/flutter_codec.dart'; -import 'package:flutter_test/flutter_test.dart'; - -import '../support/json_safety.dart'; - -void main() { - group('strokeAlignCodec decode', () { - const namedCases = [ - ('inside', BorderSide.strokeAlignInside), - ('center', BorderSide.strokeAlignCenter), - ('outside', BorderSide.strokeAlignOutside), - ]; - - for (final (input, expected) in namedCases) { - test('decodes "$input"', () { - expect(strokeAlignCodec.parse(input), expected); - }); - } - - test('decodes a double as itself', () { - expect(strokeAlignCodec.parse(0.5), 0.5); - }); - - test('decodes an int as a double', () { - expect(strokeAlignCodec.parse(2), 2.0); - }); - - test('decodes values beyond the named range', () { - expect(strokeAlignCodec.parse(-3.5), -3.5); - }); - }); - - group('strokeAlignCodec encode', () { - test('canonicalizes named offsets to aliases', () { - for (final (offset, alias) in const [ - (BorderSide.strokeAlignInside, 'inside'), - (BorderSide.strokeAlignCenter, 'center'), - (BorderSide.strokeAlignOutside, 'outside'), - ]) { - final encoded = strokeAlignCodec.encode(offset); - expect(encoded, alias); - expectJsonSafe(encoded); - } - }); - - test('encodes other finite values as numbers', () { - final encoded = strokeAlignCodec.encode(0.5); - expect(encoded, 0.5); - expectJsonSafe(encoded); - }); - }); - - group('strokeAlignCodec rejects invalid input', () { - test('rejects unknown strings', () { - expect(strokeAlignCodec.safeParse('diagonal').isFail, isTrue); - }); - - test('rejects non-finite numbers', () { - expect(strokeAlignCodec.safeParse(double.infinity).isFail, isTrue); - expect(strokeAlignCodec.safeParse(double.nan).isFail, isTrue); - }); - }); - - group('borderSideCodec decode', () { - test('parses an empty object as the default BorderSide', () { - expect(borderSideCodec.parse({}), const BorderSide()); - }); - - test('applies defaults to a partial object, decoding nested color', () { - expect( - borderSideCodec.parse({'color': '#2196F3'}), - const BorderSide(color: Color(0xFF2196F3)), - ); - }); - - test('parses a full object', () { - expect( - borderSideCodec.parse({ - 'color': '#FF0000', - 'width': 2.0, - 'style': 'none', - 'strokeAlign': 'outside', - }), - const BorderSide( - color: Color(0xFFFF0000), - width: 2, - style: BorderStyle.none, - strokeAlign: BorderSide.strokeAlignOutside, - ), - ); - }); - }); - - group('borderSideCodec encode', () { - test('emits a full canonical object including defaults', () { - final encoded = borderSideCodec.encode(const BorderSide()); - expect(encoded, { - 'color': '#000000', - 'width': 1.0, - 'style': 'solid', - 'strokeAlign': 'inside', - }); - expectJsonSafe(encoded); - }); - - test('encodes a customized BorderSide', () { - final encoded = borderSideCodec.encode( - const BorderSide( - color: Color(0xFFFF0000), - width: 2, - style: BorderStyle.none, - strokeAlign: BorderSide.strokeAlignCenter, - ), - ); - expect(encoded, { - 'color': '#FF0000', - 'width': 2.0, - 'style': 'none', - 'strokeAlign': 'center', - }); - expectJsonSafe(encoded); - }); - }); - - group('borderSideCodec rejects invalid input', () { - const invalidCases = { - 'invalid color': {'color': 'not-a-color'}, - 'negative width': {'width': -1}, - 'non-finite width': {'width': double.infinity}, - 'invalid style': {'style': 'dotted'}, - 'invalid strokeAlign': {'strokeAlign': 'diagonal'}, - 'extra property': {'unexpected': true}, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(borderSideCodec.safeParse(input).isFail, isTrue); - }); - }); - }); -} diff --git a/packages/flutter_codec/test/enums/enums_test.dart b/packages/flutter_codec/test/enums/enums_test.dart deleted file mode 100644 index a97e9e2b..00000000 --- a/packages/flutter_codec/test/enums/enums_test.dart +++ /dev/null @@ -1,205 +0,0 @@ -import 'dart:ui'; - -import 'package:ack/ack.dart'; -import 'package:flutter/gestures.dart'; -import 'package:flutter/material.dart'; -import 'package:flutter/rendering.dart'; -import 'package:flutter_codec/flutter_codec.dart'; -import 'package:flutter_test/flutter_test.dart'; - -import '../support/json_safety.dart'; - -void main() { - group('enum schemas', () { - for (final entry in _registry) { - group(entry.name, () { - test('round-trips every enum value', () { - for (final value in entry.values) { - final encoded = entry.encode(value); - expect(encoded, value.name); - expectJsonSafe(encoded); - expect(entry.parse(value.name), value); - } - }); - - test('rejects unknown strings', () { - expect(entry.rejects('__nope__'), isTrue); - }); - }); - } - }); -} - -final _registry = <_EnumCase>[ - _EnumCase('Axis', axisCodec, Axis.values), - _EnumCase( - 'AxisDirection', - axisDirectionCodec, - AxisDirection.values, - ), - _EnumCase('BlendMode', blendModeCodec, BlendMode.values), - _EnumCase('BlurStyle', blurStyleCodec, BlurStyle.values), - _EnumCase('BorderStyle', borderStyleCodec, BorderStyle.values), - _EnumCase('BoxFit', boxFitCodec, BoxFit.values), - _EnumCase( - 'BoxHeightStyle', - boxHeightStyleCodec, - BoxHeightStyle.values, - ), - _EnumCase('BoxShape', boxShapeCodec, BoxShape.values), - _EnumCase( - 'BoxWidthStyle', - boxWidthStyleCodec, - BoxWidthStyle.values, - ), - _EnumCase('Brightness', brightnessCodec, Brightness.values), - _EnumCase('Clip', clipCodec, Clip.values), - _EnumCase( - 'CrossAxisAlignment', - crossAxisAlignmentCodec, - CrossAxisAlignment.values, - ), - _EnumCase( - 'DecorationPosition', - decorationPositionCodec, - DecorationPosition.values, - ), - _EnumCase( - 'DragStartBehavior', - dragStartBehaviorCodec, - DragStartBehavior.values, - ), - _EnumCase( - 'FilterQuality', - filterQualityCodec, - FilterQuality.values, - ), - _EnumCase('FlexFit', flexFitCodec, FlexFit.values), - _EnumCase('FontStyle', fontStyleCodec, FontStyle.values), - _EnumCase( - 'GrowthDirection', - growthDirectionCodec, - GrowthDirection.values, - ), - _EnumCase( - 'HitTestBehavior', - hitTestBehaviorCodec, - HitTestBehavior.values, - ), - _EnumCase('ImageRepeat', imageRepeatCodec, ImageRepeat.values), - _EnumCase( - 'MainAxisAlignment', - mainAxisAlignmentCodec, - MainAxisAlignment.values, - ), - _EnumCase( - 'MainAxisSize', - mainAxisSizeCodec, - MainAxisSize.values, - ), - _EnumCase( - 'MaterialTapTargetSize', - materialTapTargetSizeCodec, - MaterialTapTargetSize.values, - ), - _EnumCase( - 'PaintingStyle', - paintingStyleCodec, - PaintingStyle.values, - ), - _EnumCase( - 'PathFillType', - pathFillTypeCodec, - PathFillType.values, - ), - _EnumCase( - 'PlaceholderAlignment', - placeholderAlignmentCodec, - PlaceholderAlignment.values, - ), - _EnumCase( - 'ScrollDirection', - scrollDirectionCodec, - ScrollDirection.values, - ), - _EnumCase( - 'ScrollViewKeyboardDismissBehavior', - scrollViewKeyboardDismissBehaviorCodec, - ScrollViewKeyboardDismissBehavior.values, - ), - _EnumCase('StackFit', stackFitCodec, StackFit.values), - _EnumCase('StrokeCap', strokeCapCodec, StrokeCap.values), - _EnumCase('StrokeJoin', strokeJoinCodec, StrokeJoin.values), - _EnumCase( - 'TargetPlatform', - targetPlatformCodec, - TargetPlatform.values, - ), - _EnumCase('TextAlign', textAlignCodec, TextAlign.values), - _EnumCase( - 'TextBaseline', - textBaselineCodec, - TextBaseline.values, - ), - _EnumCase( - 'TextCapitalization', - textCapitalizationCodec, - TextCapitalization.values, - ), - _EnumCase( - 'TextDecorationStyle', - textDecorationStyleCodec, - TextDecorationStyle.values, - ), - _EnumCase( - 'TextDirection', - textDirectionCodec, - TextDirection.values, - ), - _EnumCase( - 'TextLeadingDistribution', - textLeadingDistributionCodec, - TextLeadingDistribution.values, - ), - _EnumCase( - 'TextOverflow', - textOverflowCodec, - TextOverflow.values, - ), - _EnumCase( - 'TextWidthBasis', - textWidthBasisCodec, - TextWidthBasis.values, - ), - _EnumCase('ThemeMode', themeModeCodec, ThemeMode.values), - _EnumCase('TileMode', tileModeCodec, TileMode.values), - _EnumCase( - 'VerticalDirection', - verticalDirectionCodec, - VerticalDirection.values, - ), - _EnumCase( - 'WrapAlignment', - wrapAlignmentCodec, - WrapAlignment.values, - ), - _EnumCase( - 'WrapCrossAlignment', - wrapCrossAlignmentCodec, - WrapCrossAlignment.values, - ), -]; - -final class _EnumCase { - const _EnumCase(this.name, this.schema, this.values); - - final String name; - final CodecSchema schema; - final List values; - - String? encode(Enum value) => schema.encode(value as T); - - T? parse(String value) => schema.parse(value); - - bool rejects(String value) => schema.safeParse(value).isFail; -} diff --git a/packages/flutter_codec/test/primitives/alignment_test.dart b/packages/flutter_codec/test/primitives/alignment_test.dart deleted file mode 100644 index 31a85de1..00000000 --- a/packages/flutter_codec/test/primitives/alignment_test.dart +++ /dev/null @@ -1,208 +0,0 @@ -import 'package:flutter/painting.dart'; -import 'package:flutter_codec/flutter_codec.dart'; -import 'package:flutter_test/flutter_test.dart'; - -import '../support/json_safety.dart'; - -void main() { - group('alignmentCodec', () { - const named = { - 'topLeft': Alignment.topLeft, - 'topCenter': Alignment.topCenter, - 'topRight': Alignment.topRight, - 'centerLeft': Alignment.centerLeft, - 'center': Alignment.center, - 'centerRight': Alignment.centerRight, - 'bottomLeft': Alignment.bottomLeft, - 'bottomCenter': Alignment.bottomCenter, - 'bottomRight': Alignment.bottomRight, - }; - - named.forEach((name, value) { - test('decodes/encodes named "$name"', () { - expect(alignmentCodec.parse(name), value); - final encoded = alignmentCodec.encode(value); - expect(encoded, name); - expectJsonSafe(encoded); - }); - }); - - test('decodes an arbitrary {x, y} object', () { - expect( - alignmentCodec.parse({'x': 0.25, 'y': -0.5}), - const Alignment(0.25, -0.5), - ); - }); - - test('encodes an arbitrary Alignment as {x, y}', () { - final encoded = alignmentCodec.encode(const Alignment(0.25, -0.5)); - expect(encoded, {'x': 0.25, 'y': -0.5}); - expectJsonSafe(encoded); - }); - - test('decodes an integer object coordinate as a double', () { - expect(alignmentCodec.parse({'x': 1, 'y': 0}), const Alignment(1, 0)); - }); - - group('rejects invalid input', () { - const invalidCases = { - 'unknown name': 'middle', - 'missing y': {'x': 0.0}, - 'extra key': {'x': 0.0, 'y': 0.0, 'z': 1.0}, - 'directional shape': {'start': 0.0, 'y': 0.0}, - 'non-finite x': {'x': double.infinity, 'y': 0.0}, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(alignmentCodec.safeParse(input).isFail, isTrue); - }); - }); - }); - }); - - group('alignmentDirectionalCodec', () { - const named = { - 'topStart': AlignmentDirectional.topStart, - 'topCenter': AlignmentDirectional.topCenter, - 'topEnd': AlignmentDirectional.topEnd, - 'centerStart': AlignmentDirectional.centerStart, - 'center': AlignmentDirectional.center, - 'centerEnd': AlignmentDirectional.centerEnd, - 'bottomStart': AlignmentDirectional.bottomStart, - 'bottomCenter': AlignmentDirectional.bottomCenter, - 'bottomEnd': AlignmentDirectional.bottomEnd, - }; - - named.forEach((name, value) { - test('decodes/encodes named "$name"', () { - expect(alignmentDirectionalCodec.parse(name), value); - final encoded = alignmentDirectionalCodec.encode(value); - expect(encoded, name); - expectJsonSafe(encoded); - }); - }); - - test('decodes an arbitrary {start, y} object', () { - expect( - alignmentDirectionalCodec.parse({'start': 0.25, 'y': -0.5}), - const AlignmentDirectional(0.25, -0.5), - ); - }); - - test('encodes an arbitrary AlignmentDirectional as {start, y}', () { - final encoded = alignmentDirectionalCodec.encode( - const AlignmentDirectional(0.25, -0.5), - ); - expect(encoded, {'start': 0.25, 'y': -0.5}); - expectJsonSafe(encoded); - }); - - group('rejects invalid input', () { - const invalidCases = { - 'unknown name': 'middle', - 'missing y': {'start': 0.0}, - 'extra key': {'start': 0.0, 'y': 0.0, 'z': 1.0}, - 'non-directional shape': {'x': 0.0, 'y': 0.0}, - 'non-finite start': {'start': double.infinity, 'y': 0.0}, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(alignmentDirectionalCodec.safeParse(input).isFail, isTrue); - }); - }); - }); - }); - - group('alignmentGeometryCodec', () { - test('decodes regular names and {x, y} to Alignment', () { - expect(alignmentGeometryCodec.parse('topLeft'), Alignment.topLeft); - expect(alignmentGeometryCodec.parse('topLeft'), isA()); - - final fromObject = alignmentGeometryCodec.parse({'x': 0.25, 'y': -0.5}); - expect(fromObject, const Alignment(0.25, -0.5)); - expect(fromObject, isA()); - }); - - test( - 'decodes directional names and {start, y} to AlignmentDirectional', - () { - expect( - alignmentGeometryCodec.parse('topStart'), - AlignmentDirectional.topStart, - ); - expect( - alignmentGeometryCodec.parse('topStart'), - isA(), - ); - - final fromObject = alignmentGeometryCodec.parse({ - 'start': -1.0, - 'y': 0.0, - }); - expect(fromObject, const AlignmentDirectional(-1, 0)); - expect(fromObject, isA()); - }, - ); - - test('resolves the shared "center" name to Alignment, not directional', () { - // Alignment.center == AlignmentDirectional.center, so assert the type. - expect(alignmentGeometryCodec.parse('center'), isA()); - expect( - alignmentGeometryCodec.parse('center'), - isNot(isA()), - ); - }); - - test('round-trips preserve the runtime type', () { - final alignment = alignmentGeometryCodec.parse({'x': 0.25, 'y': -0.5})!; - expect(alignment, isA()); - expect(alignmentGeometryCodec.encode(alignment), {'x': 0.25, 'y': -0.5}); - - final directional = alignmentGeometryCodec.parse({ - 'start': 0.25, - 'y': -0.5, - })!; - expect(directional, isA()); - expect(alignmentGeometryCodec.encode(directional), { - 'start': 0.25, - 'y': -0.5, - }); - }); - - test('encodes Alignment back to named/object', () { - expect(alignmentGeometryCodec.encode(Alignment.center), 'center'); - final encoded = alignmentGeometryCodec.encode( - const Alignment(0.25, -0.5), - ); - expect(encoded, {'x': 0.25, 'y': -0.5}); - expectJsonSafe(encoded); - }); - - test('encodes AlignmentDirectional back to named/object', () { - expect( - alignmentGeometryCodec.encode(AlignmentDirectional.topStart), - 'topStart', - ); - final encoded = alignmentGeometryCodec.encode( - const AlignmentDirectional(0.25, -0.5), - ); - expect(encoded, {'start': 0.25, 'y': -0.5}); - expectJsonSafe(encoded); - }); - - group('rejects invalid input', () { - const invalidCases = { - 'unknown name': 'middle', - 'mixed keys': {'x': 0.0, 'y': 0.0, 'start': 0.0}, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(alignmentGeometryCodec.safeParse(input).isFail, isTrue); - }); - }); - }); - }); -} diff --git a/packages/flutter_codec/test/primitives/border_radius_test.dart b/packages/flutter_codec/test/primitives/border_radius_test.dart deleted file mode 100644 index 9b6b9937..00000000 --- a/packages/flutter_codec/test/primitives/border_radius_test.dart +++ /dev/null @@ -1,226 +0,0 @@ -import 'package:flutter/painting.dart'; -import 'package:flutter_codec/flutter_codec.dart'; -import 'package:flutter_test/flutter_test.dart'; - -import '../support/json_safety.dart'; - -void main() { - group('borderRadiusCodec decode', () { - test('decodes a number as all circular corners', () { - expect(borderRadiusCodec.parse(8), BorderRadius.circular(8)); - }); - - test('decodes {x, y} as all elliptical corners', () { - expect( - borderRadiusCodec.parse({'x': 8, 'y': 4}), - BorderRadius.all(const Radius.elliptical(8, 4)), - ); - }); - - test('decodes a full per-corner object', () { - expect( - borderRadiusCodec.parse({ - 'topLeft': 1, - 'topRight': 2, - 'bottomLeft': 3, - 'bottomRight': 4, - }), - const BorderRadius.only( - topLeft: Radius.circular(1), - topRight: Radius.circular(2), - bottomLeft: Radius.circular(3), - bottomRight: Radius.circular(4), - ), - ); - }); - - test('applies per-corner defaults to a partial object', () { - expect( - borderRadiusCodec.parse({'topLeft': 8}), - const BorderRadius.only(topLeft: Radius.circular(8)), - ); - }); - - test('decodes an empty object as BorderRadius.zero', () { - expect(borderRadiusCodec.parse({}), BorderRadius.zero); - }); - }); - - group('borderRadiusCodec encode', () { - test('collapses uniform circular corners to a number', () { - final encoded = borderRadiusCodec.encode(BorderRadius.circular(8)); - expect(encoded, 8.0); - expectJsonSafe(encoded); - }); - - test('collapses uniform elliptical corners to {x, y}', () { - final encoded = borderRadiusCodec.encode( - BorderRadius.all(const Radius.elliptical(8, 4)), - ); - expect(encoded, {'x': 8.0, 'y': 4.0}); - expectJsonSafe(encoded); - }); - - test('emits the full corner object when corners differ', () { - final encoded = borderRadiusCodec.encode( - const BorderRadius.only(topLeft: Radius.circular(8)), - ); - expect(encoded, { - 'topLeft': 8.0, - 'topRight': 0.0, - 'bottomLeft': 0.0, - 'bottomRight': 0.0, - }); - expectJsonSafe(encoded); - }); - }); - - group('borderRadiusCodec rejects invalid input', () { - const invalidCases = { - 'directional shape': { - 'topStart': 8, - 'topEnd': 0, - 'bottomStart': 0, - 'bottomEnd': 0, - }, - 'unknown key': {'topLeft': 8, 'z': 1}, - 'negative corner': {'topLeft': -1}, - 'non-finite corner': {'topLeft': double.infinity}, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(borderRadiusCodec.safeParse(input).isFail, isTrue); - }); - }); - }); - - group('borderRadiusDirectionalCodec', () { - test('decodes a full per-corner object', () { - expect( - borderRadiusDirectionalCodec.parse({ - 'topStart': 1, - 'topEnd': 2, - 'bottomStart': 3, - 'bottomEnd': 4, - }), - const BorderRadiusDirectional.only( - topStart: Radius.circular(1), - topEnd: Radius.circular(2), - bottomStart: Radius.circular(3), - bottomEnd: Radius.circular(4), - ), - ); - }); - - test('applies per-corner defaults to a partial object', () { - expect( - borderRadiusDirectionalCodec.parse({'topStart': 8}), - const BorderRadiusDirectional.only(topStart: Radius.circular(8)), - ); - }); - - test('decodes an empty object as BorderRadiusDirectional.zero', () { - expect( - borderRadiusDirectionalCodec.parse({}), - BorderRadiusDirectional.zero, - ); - }); - - test('always encodes to the full object, even when uniform', () { - final encoded = borderRadiusDirectionalCodec.encode( - BorderRadiusDirectional.all(const Radius.circular(8)), - ); - expect(encoded, { - 'topStart': 8.0, - 'topEnd': 8.0, - 'bottomStart': 8.0, - 'bottomEnd': 8.0, - }); - expectJsonSafe(encoded); - }); - - group('rejects invalid input', () { - const invalidCases = { - 'a scalar': 8, - 'non-directional shape': { - 'topLeft': 8, - 'topRight': 0, - 'bottomLeft': 0, - 'bottomRight': 0, - }, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(borderRadiusDirectionalCodec.safeParse(input).isFail, isTrue); - }); - }); - }); - }); - - group('borderRadiusGeometryCodec', () { - test('decodes shorthand / {topLeft,...} / {} to BorderRadius', () { - expect(borderRadiusGeometryCodec.parse(8), isA()); - expect(borderRadiusGeometryCodec.parse(8), BorderRadius.circular(8)); - - final fromObject = borderRadiusGeometryCodec.parse({'topLeft': 8}); - expect(fromObject, isA()); - expect(fromObject, const BorderRadius.only(topLeft: Radius.circular(8))); - - expect(borderRadiusGeometryCodec.parse({}), isA()); - }); - - test('decodes {topStart,...} to BorderRadiusDirectional', () { - final value = borderRadiusGeometryCodec.parse({'topStart': 8}); - expect(value, isA()); - expect( - value, - const BorderRadiusDirectional.only(topStart: Radius.circular(8)), - ); - }); - - test('encodes BorderRadius back to shorthand/object', () { - expect(borderRadiusGeometryCodec.encode(BorderRadius.circular(8)), 8.0); - final encoded = borderRadiusGeometryCodec.encode( - const BorderRadius.only(topLeft: Radius.circular(8)), - ); - expect(encoded, { - 'topLeft': 8.0, - 'topRight': 0.0, - 'bottomLeft': 0.0, - 'bottomRight': 0.0, - }); - expectJsonSafe(encoded); - }); - - test('directional round-trips as BorderRadiusDirectional', () { - final encoded = borderRadiusGeometryCodec.encode( - BorderRadiusDirectional.all(const Radius.circular(8)), - ); - expect(encoded, { - 'topStart': 8.0, - 'topEnd': 8.0, - 'bottomStart': 8.0, - 'bottomEnd': 8.0, - }); - expect( - borderRadiusGeometryCodec.parse(encoded), - isA(), - ); - }); - - group('rejects invalid input', () { - const invalidCases = { - 'mixed keys': {'topLeft': 8, 'topStart': 8}, - 'unknown key': {'z': 1}, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(borderRadiusGeometryCodec.safeParse(input).isFail, isTrue); - }); - }); - }); - }); -} diff --git a/packages/flutter_codec/test/primitives/color_test.dart b/packages/flutter_codec/test/primitives/color_test.dart deleted file mode 100644 index 16bc306e..00000000 --- a/packages/flutter_codec/test/primitives/color_test.dart +++ /dev/null @@ -1,51 +0,0 @@ -import 'dart:ui'; - -import 'package:flutter_codec/flutter_codec.dart'; -import 'package:flutter_test/flutter_test.dart'; - -import '../support/json_safety.dart'; - -void main() { - group('colorCodec decode', () { - const cases = [ - ('#2196F3', Color(0xFF2196F3)), - ('#802196F3', Color(0x802196F3)), - ('rgb(33, 150, 243)', Color(0xFF2196F3)), - ('rgba(33, 150, 243, 0.5)', Color(0x802196F3)), - ]; - - for (final (input, expected) in cases) { - test(input, () { - expect(colorCodec.parse(input), expected); - }); - } - }); - - group('colorCodec encode', () { - test('canonicalizes opaque colors to #RRGGBB', () { - final encoded = colorCodec.encode(const Color(0xFF2196F3)); - expect(encoded, '#2196F3'); - expectJsonSafe(encoded); - }); - - test('canonicalizes translucent colors to #AARRGGBB', () { - final encoded = colorCodec.encode(const Color(0x802196F3)); - expect(encoded, '#802196F3'); - expectJsonSafe(encoded); - }); - }); - - group('colorCodec rejects invalid input', () { - for (final input in [ - '#2196F', - '#GG96F3', - 'rgb(256, 150, 243)', - 'rgba(33, 150, 243, 1.5)', - 'hsl(207, 90%, 54%)', - ]) { - test(input, () { - expect(colorCodec.safeParse(input).isFail, isTrue); - }); - } - }); -} diff --git a/packages/flutter_codec/test/primitives/edge_insets_test.dart b/packages/flutter_codec/test/primitives/edge_insets_test.dart deleted file mode 100644 index 1a9450cb..00000000 --- a/packages/flutter_codec/test/primitives/edge_insets_test.dart +++ /dev/null @@ -1,176 +0,0 @@ -import 'package:flutter/painting.dart'; -import 'package:flutter_codec/flutter_codec.dart'; -import 'package:flutter_test/flutter_test.dart'; - -import '../support/json_safety.dart'; - -void main() { - group('edgeInsetsCodec decode', () { - test('decodes a number as all sides', () { - expect(edgeInsetsCodec.parse(16), const EdgeInsets.all(16)); - }); - - test('decodes a full {left, top, right, bottom} object', () { - expect( - edgeInsetsCodec.parse({'left': 1, 'top': 2, 'right': 3, 'bottom': 4}), - const EdgeInsets.fromLTRB(1, 2, 3, 4), - ); - }); - - test('applies per-side defaults to a partial object', () { - expect( - edgeInsetsCodec.parse({'left': 8}), - const EdgeInsets.only(left: 8), - ); - }); - - test('decodes an empty object as EdgeInsets.zero', () { - expect(edgeInsetsCodec.parse({}), EdgeInsets.zero); - }); - }); - - group('edgeInsetsCodec encode', () { - test('collapses a uniform inset to a scalar', () { - final encoded = edgeInsetsCodec.encode(const EdgeInsets.all(16)); - expect(encoded, 16.0); - expectJsonSafe(encoded); - }); - - test('encodes EdgeInsets.zero as 0', () { - final encoded = edgeInsetsCodec.encode(EdgeInsets.zero); - expect(encoded, 0.0); - expectJsonSafe(encoded); - }); - - test('emits the full object when sides differ', () { - final encoded = edgeInsetsCodec.encode( - const EdgeInsets.only(left: 8, top: 4), - ); - expect(encoded, {'left': 8.0, 'top': 4.0, 'right': 0.0, 'bottom': 0.0}); - expectJsonSafe(encoded); - }); - }); - - group('edgeInsetsCodec rejects invalid input', () { - const invalidCases = { - 'directional shape': {'start': 8, 'top': 0, 'end': 0, 'bottom': 0}, - 'unknown key': {'left': 8, 'z': 1}, - 'non-finite scalar': double.infinity, - 'non-finite side': {'left': double.infinity}, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(edgeInsetsCodec.safeParse(input).isFail, isTrue); - }); - }); - }); - - group('edgeInsetsDirectionalCodec', () { - test('decodes a full {start, top, end, bottom} object', () { - expect( - edgeInsetsDirectionalCodec.parse({ - 'start': 1, - 'top': 2, - 'end': 3, - 'bottom': 4, - }), - const EdgeInsetsDirectional.fromSTEB(1, 2, 3, 4), - ); - }); - - test('applies per-side defaults to a partial object', () { - expect( - edgeInsetsDirectionalCodec.parse({'start': 8}), - const EdgeInsetsDirectional.only(start: 8), - ); - }); - - test('decodes an empty object as EdgeInsetsDirectional.zero', () { - expect(edgeInsetsDirectionalCodec.parse({}), EdgeInsetsDirectional.zero); - }); - - test('always encodes to the full object, even when uniform', () { - final encoded = edgeInsetsDirectionalCodec.encode( - const EdgeInsetsDirectional.all(8), - ); - expect(encoded, {'start': 8.0, 'top': 8.0, 'end': 8.0, 'bottom': 8.0}); - expectJsonSafe(encoded); - }); - - group('rejects invalid input', () { - const invalidCases = { - 'a scalar': 8, - 'non-directional shape': {'left': 8, 'top': 0, 'right': 0, 'bottom': 0}, - 'non-finite side': {'start': double.infinity}, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(edgeInsetsDirectionalCodec.safeParse(input).isFail, isTrue); - }); - }); - }); - }); - - group('edgeInsetsGeometryCodec', () { - test('decodes scalar / {left,...} / {} to EdgeInsets', () { - expect(edgeInsetsGeometryCodec.parse(16), isA()); - expect(edgeInsetsGeometryCodec.parse(16), const EdgeInsets.all(16)); - - final fromObject = edgeInsetsGeometryCodec.parse({'left': 8}); - expect(fromObject, isA()); - expect(fromObject, const EdgeInsets.only(left: 8)); - - expect(edgeInsetsGeometryCodec.parse({}), isA()); - }); - - test('decodes {start,...} to EdgeInsetsDirectional', () { - final value = edgeInsetsGeometryCodec.parse({'start': 8}); - expect(value, isA()); - expect(value, const EdgeInsetsDirectional.only(start: 8)); - }); - - test('encodes EdgeInsets back to scalar/object', () { - expect(edgeInsetsGeometryCodec.encode(const EdgeInsets.all(16)), 16.0); - final encoded = edgeInsetsGeometryCodec.encode( - const EdgeInsets.only(left: 8, top: 4), - ); - expect(encoded, {'left': 8.0, 'top': 4.0, 'right': 0.0, 'bottom': 0.0}); - expectJsonSafe(encoded); - }); - - test('encodes EdgeInsetsDirectional back to its object', () { - final encoded = edgeInsetsGeometryCodec.encode( - const EdgeInsetsDirectional.only(start: 8), - ); - expect(encoded, {'start': 8.0, 'top': 0.0, 'end': 0.0, 'bottom': 0.0}); - expectJsonSafe(encoded); - }); - - test('directional zero round-trips as EdgeInsetsDirectional', () { - // EdgeInsets.zero == EdgeInsetsDirectional.zero, so assert the type. - final encoded = edgeInsetsGeometryCodec.encode( - EdgeInsetsDirectional.zero, - ); - expect(encoded, {'start': 0.0, 'top': 0.0, 'end': 0.0, 'bottom': 0.0}); - expect( - edgeInsetsGeometryCodec.parse(encoded), - isA(), - ); - }); - - group('rejects invalid input', () { - const invalidCases = { - 'mixed keys': {'left': 8, 'start': 8}, - 'unknown key': {'z': 1}, - }; - - invalidCases.forEach((name, input) { - test('rejects $name', () { - expect(edgeInsetsGeometryCodec.safeParse(input).isFail, isTrue); - }); - }); - }); - }); -} diff --git a/packages/flutter_codec/test/primitives/offset_test.dart b/packages/flutter_codec/test/primitives/offset_test.dart deleted file mode 100644 index bbd57957..00000000 --- a/packages/flutter_codec/test/primitives/offset_test.dart +++ /dev/null @@ -1,30 +0,0 @@ -import 'package:flutter_codec/flutter_codec.dart'; -import 'package:flutter_test/flutter_test.dart'; - -import '../support/json_safety.dart'; - -void main() { - group('offsetCodec', () { - test('decodes x and y into an Offset', () { - expect(offsetCodec.parse({'x': 12, 'y': 4.5}), const Offset(12, 4.5)); - }); - - test('encodes Offset as x and y', () { - final encoded = offsetCodec.encode(const Offset(12, 4.5)); - expect(encoded, {'x': 12.0, 'y': 4.5}); - expectJsonSafe(encoded); - }); - - test('rejects missing coordinates', () { - expect(offsetCodec.safeParse({'x': 12}).isFail, isTrue); - }); - - test('rejects non-finite coordinates', () { - expect( - offsetCodec.safeParse({'x': double.infinity, 'y': 0}).isFail, - isTrue, - ); - expect(offsetCodec.safeParse({'x': 0, 'y': double.nan}).isFail, isTrue); - }); - }); -} diff --git a/packages/flutter_codec/test/primitives/radius_test.dart b/packages/flutter_codec/test/primitives/radius_test.dart deleted file mode 100644 index b37aba6f..00000000 --- a/packages/flutter_codec/test/primitives/radius_test.dart +++ /dev/null @@ -1,53 +0,0 @@ -import 'dart:ui'; - -import 'package:flutter_codec/flutter_codec.dart'; -import 'package:flutter_test/flutter_test.dart'; - -import '../support/json_safety.dart'; - -void main() { - group('radiusCodec decode', () { - test('decodes a number as a circular radius', () { - expect(radiusCodec.parse(8), const Radius.circular(8)); - }); - - test('decodes x and y as an elliptical radius', () { - expect( - radiusCodec.parse({'x': 8, 'y': 12.5}), - const Radius.elliptical(8, 12.5), - ); - }); - }); - - group('radiusCodec encode', () { - test('canonicalizes circular radii to a number', () { - final encoded = radiusCodec.encode(const Radius.circular(8)); - expect(encoded, 8.0); - expectJsonSafe(encoded); - }); - - test('encodes elliptical radii as x and y', () { - final encoded = radiusCodec.encode(const Radius.elliptical(8, 12.5)); - expect(encoded, {'x': 8.0, 'y': 12.5}); - expectJsonSafe(encoded); - }); - }); - - group('radiusCodec rejects invalid input', () { - test('rejects negative circular radii', () { - expect(radiusCodec.safeParse(-1).isFail, isTrue); - }); - - test('rejects negative elliptical coordinates', () { - expect(radiusCodec.safeParse({'x': 1, 'y': -1}).isFail, isTrue); - }); - - test('rejects non-finite radii', () { - expect(radiusCodec.safeParse(double.infinity).isFail, isTrue); - expect( - radiusCodec.safeParse({'x': double.infinity, 'y': 1}).isFail, - isTrue, - ); - }); - }); -} diff --git a/packages/flutter_codec/test/support/json_safety.dart b/packages/flutter_codec/test/support/json_safety.dart deleted file mode 100644 index f4c4bd70..00000000 --- a/packages/flutter_codec/test/support/json_safety.dart +++ /dev/null @@ -1,45 +0,0 @@ -import 'dart:convert'; - -import 'package:flutter_test/flutter_test.dart'; - -/// Returns the path of the first non-JSON-safe value in [value], or null when -/// the whole structure is JSON-safe. Mirrors ack's `_jsonSafeOrNull` -/// (packages/ack/lib/src/schemas/schema.dart): JSON values are null, a finite -/// num, a bool, or a String; JSON collections are Lists of JSON values or -/// `Map`, recursively. -String? jsonSafetyViolation(Object? value, [String path = r'$']) { - if (value == null || value is bool || value is String) return null; - if (value is num) { - return value.isFinite ? null : '$path: non-finite number ($value)'; - } - if (value is List) { - for (var i = 0; i < value.length; i++) { - final violation = jsonSafetyViolation(value[i], '$path[$i]'); - if (violation != null) return violation; - } - return null; - } - if (value is Map) { - for (final entry in value.entries) { - if (entry.key is! String) { - return '$path: non-string key (${entry.key.runtimeType})'; - } - final violation = jsonSafetyViolation(entry.value, '$path.${entry.key}'); - if (violation != null) return violation; - } - return null; - } - - return '$path: non-JSON value of type ${value.runtimeType}'; -} - -/// Asserts [value] is composed solely of JSON values/collections and survives -/// a real `jsonEncode` round-trip. -void expectJsonSafe(Object? value) { - expect( - jsonSafetyViolation(value), - isNull, - reason: 'Encoded output is not JSON-safe', - ); - expect(() => jsonEncode(value), returnsNormally); -} diff --git a/packages/flutter_codec/test/support/json_safety_test.dart b/packages/flutter_codec/test/support/json_safety_test.dart deleted file mode 100644 index dccae1c0..00000000 --- a/packages/flutter_codec/test/support/json_safety_test.dart +++ /dev/null @@ -1,48 +0,0 @@ -import 'package:flutter_test/flutter_test.dart'; - -import 'json_safety.dart'; - -void main() { - group('jsonSafetyViolation accepts JSON values', () { - for (final value in [ - null, - true, - 'text', - 1, - 1.5, - [1, 'a', null], - { - 'k': [1, true], - 'nested': {'x': 2.0}, - }, - ]) { - test('$value', () { - expect(jsonSafetyViolation(value), isNull); - expectJsonSafe(value); - }); - } - }); - - group('jsonSafetyViolation flags non-JSON content', () { - test('reports the path of a leaked runtime object', () { - final violation = jsonSafetyViolation({'color': Object()}); - expect(violation, r'$.color: non-JSON value of type Object'); - }); - - test('rejects non-finite numbers', () { - expect(jsonSafetyViolation(double.infinity), isNotNull); - expect(jsonSafetyViolation(double.nan), isNotNull); - }); - - test('rejects non-string map keys', () { - expect(jsonSafetyViolation({1: 'a'}), isNotNull); - }); - - test('expectJsonSafe fails when a runtime object leaks', () { - expect( - () => expectJsonSafe({'color': Object()}), - throwsA(isA()), - ); - }); - }); -} diff --git a/pubspec.yaml b/pubspec.yaml index e4beb9c8..a7851dbf 100644 --- a/pubspec.yaml +++ b/pubspec.yaml @@ -10,7 +10,6 @@ workspace: - packages/ack_annotations - packages/ack_generator - packages/ack_firebase_ai - - packages/flutter_codec - packages/ack_json_schema_builder - example @@ -55,7 +54,6 @@ melos: - ack - ack_generator - ack_firebase_ai - - flutter_codec - ack_json_schema_builder - ack_example - ack_annotations From bd917bb24c8122388075501e001835e30c88a65f Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 14:35:38 -0400 Subject: [PATCH 24/53] refactor: replace finite number constraints with general number constraints across codecs --- packages/flutter_codec/lib/src/borders.dart | 143 ++++++++-- packages/flutter_codec/lib/src/numbers.dart | 17 -- .../lib/src/primitives/alignment.dart | 4 +- .../lib/src/primitives/edge_insets.dart | 18 +- .../lib/src/primitives/offset.dart | 2 +- .../lib/src/primitives/radius.dart | 7 +- .../test/borders/borders_test.dart | 261 ++++++++++++++++++ .../test/primitives/radius_test.dart | 9 + 8 files changed, 409 insertions(+), 52 deletions(-) diff --git a/packages/flutter_codec/lib/src/borders.dart b/packages/flutter_codec/lib/src/borders.dart index e71b6bd6..d1a1c623 100644 --- a/packages/flutter_codec/lib/src/borders.dart +++ b/packages/flutter_codec/lib/src/borders.dart @@ -1,5 +1,6 @@ import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' show BorderSide, BorderStyle, Color; +import 'package:flutter/painting.dart' + show Border, BorderDirectional, BorderSide, BorderStyle, BoxBorder, Color; import 'enums.dart' show borderStyleCodec; import 'numbers.dart'; @@ -16,7 +17,7 @@ enum _StrokeAlign { inside, center, outside } /// canonicalizes the three named offsets back to their aliases and emits any /// other finite value as a number. final strokeAlignCodec = Ack.codec( - input: Ack.anyOf([Ack.enumCodec(_StrokeAlign.values), finiteNumber()]), + input: Ack.anyOf([Ack.enumCodec(_StrokeAlign.values), Ack.number()]), decode: _decodeStrokeAlign, encode: _encodeStrokeAlign, ); @@ -43,29 +44,46 @@ Object _encodeStrokeAlign(double value) { /// Codec for [BorderSide], composing [colorCodec], [borderStyleCodec], and /// [strokeAlignCodec]. /// -/// Missing fields fall back to Flutter's [BorderSide] constructor defaults, so -/// `{}` decodes to `const BorderSide()`. Encoding always emits a full canonical -/// object with all four fields. -final borderSideCodec = Ack.object({ - 'color': colorCodec.withDefault(const Color(0xFF000000)), - 'width': nonNegativeFiniteNumber().withDefault(1.0), - 'style': borderStyleCodec.withDefault(BorderStyle.solid), - 'strokeAlign': strokeAlignCodec.withDefault(BorderSide.strokeAlignInside), -}).model(decode: _decodeBorderSide, encode: _encodeBorderSide); - -BorderSide _decodeBorderSide(JsonMap data) { +/// The string `"none"` is a shorthand for [BorderSide.none]. Otherwise an +/// object `{color, width, style, strokeAlign}` is used, with each field +/// optional and falling back to the [BorderSide] constructor defaults — so +/// `{}` decodes to `const BorderSide()` (1px solid black, NOT +/// [BorderSide.none]; use `"none"` for that). +/// +/// Encoding canonicalizes [BorderSide.none] to `"none"` and emits a full +/// canonical `{color, width, style, strokeAlign}` object for any other value. +final borderSideCodec = Ack.codec( + input: Ack.anyOf([ + Ack.literal('none'), + Ack.object({ + 'color': colorCodec.withDefault(const Color(0xFF000000)), + 'width': Ack.number().min(0).withDefault(1.0), + 'style': borderStyleCodec.withDefault(BorderStyle.solid), + 'strokeAlign': strokeAlignCodec.withDefault(BorderSide.strokeAlignInside), + }), + ]), + decode: _decodeBorderSide, + encode: _encodeBorderSide, +); + +BorderSide _decodeBorderSide(Object value) { + if (value == 'none') return BorderSide.none; + + final map = value as JsonMap; return BorderSide( - color: data['color']! as Color, - width: readDouble(data, 'width'), - style: data['style']! as BorderStyle, - strokeAlign: data['strokeAlign']! as double, + color: map['color']! as Color, + width: readDouble(map, 'width'), + style: map['style']! as BorderStyle, + strokeAlign: map['strokeAlign']! as double, ); } // Returns runtime property values (Color, BorderStyle, double), not JSON. The // object schema re-encodes each property through its own schema (colorCodec, // borderStyleCodec, strokeAlignCodec) to produce the JSON-safe boundary. -JsonMap _encodeBorderSide(BorderSide value) { +Object _encodeBorderSide(BorderSide value) { + if (value == BorderSide.none) return 'none'; + return { 'color': value.color, 'width': value.width, @@ -73,3 +91,92 @@ JsonMap _encodeBorderSide(BorderSide value) { 'strokeAlign': value.strokeAlign, }; } + +/// Codec for [Border]. A bare [BorderSide] shorthand (via [borderSideCodec]) +/// fans the same side across all four edges via [Border.fromBorderSide]; an +/// object `{top, right, bottom, left}` (each side optional, defaulting to +/// [BorderSide.none]) sets them individually. Encoding canonicalizes uniform +/// borders back to the side shorthand, so `Border()` round-trips through +/// `"none"` and `Border.all(...)` through a single side object. +/// +/// Note: `{}` decodes through the side branch to `Border.fromBorderSide(const +/// BorderSide())` — four 1px solid black sides — *not* `Border()`. Use +/// `"none"` for an empty border. +final borderCodec = Ack.codec( + input: Ack.anyOf([ + borderSideCodec, + Ack.object({ + 'top': borderSideCodec.withDefault(BorderSide.none), + 'right': borderSideCodec.withDefault(BorderSide.none), + 'bottom': borderSideCodec.withDefault(BorderSide.none), + 'left': borderSideCodec.withDefault(BorderSide.none), + }), + ]), + decode: _decodeBorder, + encode: _encodeBorder, +); + +Border _decodeBorder(Object value) { + if (value is BorderSide) return Border.fromBorderSide(value); + + final map = value as JsonMap; + return Border( + top: map['top']! as BorderSide, + right: map['right']! as BorderSide, + bottom: map['bottom']! as BorderSide, + left: map['left']! as BorderSide, + ); +} + +Object _encodeBorder(Border value) { + if (value.top == value.right && + value.right == value.bottom && + value.bottom == value.left) { + return value.top; + } + + return { + 'top': value.top, + 'right': value.right, + 'bottom': value.bottom, + 'left': value.left, + }; +} + +/// Codec for [BorderDirectional], an object `{top, start, end, bottom}` (each +/// side optional, defaulting to [BorderSide.none]). Always encodes to the +/// object form — never a side shorthand — so the directional type round-trips +/// even when uniform or empty (a bare side is reserved for [Border]). +final borderDirectionalCodec = + Ack.object({ + 'top': borderSideCodec.withDefault(BorderSide.none), + 'start': borderSideCodec.withDefault(BorderSide.none), + 'end': borderSideCodec.withDefault(BorderSide.none), + 'bottom': borderSideCodec.withDefault(BorderSide.none), + }).model( + decode: (data) => BorderDirectional( + top: data['top']! as BorderSide, + start: data['start']! as BorderSide, + end: data['end']! as BorderSide, + bottom: data['bottom']! as BorderSide, + ), + encode: (value) => { + 'top': value.top, + 'start': value.start, + 'end': value.end, + 'bottom': value.bottom, + }, + ); + +/// Codec for [BoxBorder], unioning [borderCodec] and [borderDirectionalCodec]. +/// +/// A bare side shorthand, an `{top, right, bottom, left}` object, and the +/// `"none"` alias decode to [Border]; objects carrying `start`/`end` decode to +/// [BorderDirectional] ([borderCodec] is tried first). Encoding dispatches by +/// runtime type. Mixed borders (the result of adding a [Border] to a +/// [BorderDirectional]) are not supported. +final boxBorderCodec = Ack.anyOf([borderCodec, borderDirectionalCodec]) + .codec( + decode: (value) => value as BoxBorder, + encode: (value) => value, + ); diff --git a/packages/flutter_codec/lib/src/numbers.dart b/packages/flutter_codec/lib/src/numbers.dart index c3e66ed1..4d4fe1f6 100644 --- a/packages/flutter_codec/lib/src/numbers.dart +++ b/packages/flutter_codec/lib/src/numbers.dart @@ -1,22 +1,5 @@ import 'package:ack/ack.dart'; -/// A finite number — rejects `NaN` and the infinities, which are never valid -/// for Flutter measurements and are not JSON-safe. -NumberSchema finiteNumber() { - return Ack.number().refine( - (value) => value.isFinite, - message: 'Expected a finite number.', - ); -} - -/// A finite, non-negative number. -NumberSchema nonNegativeFiniteNumber() { - return Ack.number().refine( - (value) => value.isFinite && value >= 0, - message: 'Expected a finite, non-negative number.', - ); -} - /// Reads the required numeric field [key] from a decoded [map] as a `double`. /// /// The schema has already validated the field, so the value is present and a diff --git a/packages/flutter_codec/lib/src/primitives/alignment.dart b/packages/flutter_codec/lib/src/primitives/alignment.dart index 778d71c3..fcb53a76 100644 --- a/packages/flutter_codec/lib/src/primitives/alignment.dart +++ b/packages/flutter_codec/lib/src/primitives/alignment.dart @@ -27,7 +27,7 @@ enum _Alignment { final alignmentCodec = Ack.codec( input: Ack.anyOf([ Ack.enumCodec(_Alignment.values), - Ack.object({'x': finiteNumber(), 'y': finiteNumber()}), + Ack.object({'x': Ack.number(), 'y': Ack.number()}), ]), decode: _decodeAlignment, encode: _encodeAlignment, @@ -73,7 +73,7 @@ final alignmentDirectionalCodec = Ack.codec( input: Ack.anyOf([ Ack.enumCodec(_AlignmentDirectional.values), - Ack.object({'start': finiteNumber(), 'y': finiteNumber()}), + Ack.object({'start': Ack.number(), 'y': Ack.number()}), ]), decode: _decodeAlignmentDirectional, encode: _encodeAlignmentDirectional, diff --git a/packages/flutter_codec/lib/src/primitives/edge_insets.dart b/packages/flutter_codec/lib/src/primitives/edge_insets.dart index 9f23a74f..112ca393 100644 --- a/packages/flutter_codec/lib/src/primitives/edge_insets.dart +++ b/packages/flutter_codec/lib/src/primitives/edge_insets.dart @@ -10,12 +10,12 @@ import '../numbers.dart'; /// sides are equal, otherwise the full object. final edgeInsetsCodec = Ack.codec( input: Ack.anyOf([ - finiteNumber(), + Ack.number(), Ack.object({ - 'left': finiteNumber().withDefault(0.0), - 'top': finiteNumber().withDefault(0.0), - 'right': finiteNumber().withDefault(0.0), - 'bottom': finiteNumber().withDefault(0.0), + 'left': Ack.number().withDefault(0.0), + 'top': Ack.number().withDefault(0.0), + 'right': Ack.number().withDefault(0.0), + 'bottom': Ack.number().withDefault(0.0), }), ]), decode: _decodeEdgeInsets, @@ -56,10 +56,10 @@ Object _encodeEdgeInsets(EdgeInsets value) { /// reserved for [EdgeInsets]). final edgeInsetsDirectionalCodec = Ack.object({ - 'start': finiteNumber().withDefault(0.0), - 'top': finiteNumber().withDefault(0.0), - 'end': finiteNumber().withDefault(0.0), - 'bottom': finiteNumber().withDefault(0.0), + 'start': Ack.number().withDefault(0.0), + 'top': Ack.number().withDefault(0.0), + 'end': Ack.number().withDefault(0.0), + 'bottom': Ack.number().withDefault(0.0), }).model( decode: (data) => EdgeInsetsDirectional.fromSTEB( readDouble(data, 'start'), diff --git a/packages/flutter_codec/lib/src/primitives/offset.dart b/packages/flutter_codec/lib/src/primitives/offset.dart index bd36b5fe..8159af82 100644 --- a/packages/flutter_codec/lib/src/primitives/offset.dart +++ b/packages/flutter_codec/lib/src/primitives/offset.dart @@ -4,7 +4,7 @@ import 'package:flutter/painting.dart' show Offset; import '../numbers.dart'; /// Codec for [Offset], represented as `{"x": ..., "y": ...}`. -final offsetCodec = Ack.object({'x': finiteNumber(), 'y': finiteNumber()}) +final offsetCodec = Ack.object({'x': Ack.number(), 'y': Ack.number()}) .model( decode: (data) => Offset(readDouble(data, 'x'), readDouble(data, 'y')), encode: (value) => {'x': value.dx, 'y': value.dy}, diff --git a/packages/flutter_codec/lib/src/primitives/radius.dart b/packages/flutter_codec/lib/src/primitives/radius.dart index 03735982..95d66b4f 100644 --- a/packages/flutter_codec/lib/src/primitives/radius.dart +++ b/packages/flutter_codec/lib/src/primitives/radius.dart @@ -7,11 +7,8 @@ import '../numbers.dart'; /// `{"x": ..., "y": ...}` is elliptical. Circular radii encode back to a number. final radiusCodec = Ack.codec( input: Ack.anyOf([ - nonNegativeFiniteNumber(), - Ack.object({ - 'x': nonNegativeFiniteNumber(), - 'y': nonNegativeFiniteNumber(), - }), + Ack.number().min(0), + Ack.object({'x': Ack.number().min(0), 'y': Ack.number().min(0)}), ]), decode: _decodeRadius, encode: _encodeRadius, diff --git a/packages/flutter_codec/test/borders/borders_test.dart b/packages/flutter_codec/test/borders/borders_test.dart index e808682f..33f7a865 100644 --- a/packages/flutter_codec/test/borders/borders_test.dart +++ b/packages/flutter_codec/test/borders/borders_test.dart @@ -1,3 +1,5 @@ +import 'dart:convert'; + import 'package:flutter/painting.dart'; import 'package:flutter_codec/flutter_codec.dart'; import 'package:flutter_test/flutter_test.dart'; @@ -63,8 +65,16 @@ void main() { }); group('borderSideCodec decode', () { + test('parses "none" as BorderSide.none', () { + expect(borderSideCodec.parse('none'), BorderSide.none); + }); + test('parses an empty object as the default BorderSide', () { + // Distinct from "none": `{}` falls through to the object branch and + // produces a default-filled BorderSide (1px solid black), not + // BorderSide.none (0px style:none). expect(borderSideCodec.parse({}), const BorderSide()); + expect(borderSideCodec.parse({}), isNot(BorderSide.none)); }); test('applies defaults to a partial object, decoding nested color', () { @@ -93,6 +103,12 @@ void main() { }); group('borderSideCodec encode', () { + test('canonicalizes BorderSide.none to "none"', () { + final encoded = borderSideCodec.encode(BorderSide.none); + expect(encoded, 'none'); + expectJsonSafe(encoded); + }); + test('emits a full canonical object including defaults', () { final encoded = borderSideCodec.encode(const BorderSide()); expect(encoded, { @@ -131,6 +147,7 @@ void main() { 'invalid style': {'style': 'dotted'}, 'invalid strokeAlign': {'strokeAlign': 'diagonal'}, 'extra property': {'unexpected': true}, + 'unknown string alias': 'thin', }; invalidCases.forEach((name, input) { @@ -139,4 +156,248 @@ void main() { }); }); }); + + group('borderCodec decode', () { + test('decodes "none" as Border()', () { + expect(borderCodec.parse('none'), const Border()); + }); + + test('decodes a side shorthand as Border.all', () { + expect( + borderCodec.parse({'color': '#FF0000', 'width': 2}), + Border.all(color: const Color(0xFFFF0000), width: 2), + ); + }); + + test('decodes a full per-side object', () { + final parsed = borderCodec.parse({ + 'top': {'color': '#FF0000', 'width': 2}, + 'right': {'color': '#00FF00', 'width': 1}, + 'bottom': {'color': '#0000FF', 'width': 3}, + 'left': 'none', + }); + expect( + parsed, + const Border( + top: BorderSide(color: Color(0xFFFF0000), width: 2), + right: BorderSide(color: Color(0xFF00FF00)), + bottom: BorderSide(color: Color(0xFF0000FF), width: 3), + left: BorderSide.none, + ), + ); + }); + + test( + 'decodes a partial per-side object, defaulting omitted sides to none', + () { + expect( + borderCodec.parse({ + 'top': {'color': '#FF0000'}, + }), + const Border(top: BorderSide(color: Color(0xFFFF0000))), + ); + }, + ); + + test('decodes {} via the side branch (NOT Border())', () { + // Quirk lock-in: empty object falls through borderSideCodec to a default + // BorderSide (1px solid black), then fan-outs to all four sides. The + // canonical empty border is `"none"`, not `{}`. + expect(borderCodec.parse({}), const Border.fromBorderSide(BorderSide())); + expect(borderCodec.parse({}), isNot(const Border())); + }); + }); + + group('borderCodec encode', () { + test('canonicalizes Border() to "none"', () { + final encoded = borderCodec.encode(const Border()); + expect(encoded, 'none'); + expectJsonSafe(encoded); + }); + + test('canonicalizes uniform sides to the side shorthand', () { + final encoded = borderCodec.encode( + Border.all(color: const Color(0xFFFF0000), width: 2), + ); + expect(encoded, { + 'color': '#FF0000', + 'width': 2.0, + 'style': 'solid', + 'strokeAlign': 'inside', + }); + expectJsonSafe(encoded); + }); + + test('emits the full {top, right, bottom, left} map for mixed sides', () { + final encoded = borderCodec.encode( + const Border( + top: BorderSide(color: Color(0xFFFF0000), width: 2), + bottom: BorderSide(color: Color(0xFF0000FF), width: 3), + ), + ); + expect(encoded, { + 'top': { + 'color': '#FF0000', + 'width': 2.0, + 'style': 'solid', + 'strokeAlign': 'inside', + }, + 'right': 'none', + 'bottom': { + 'color': '#0000FF', + 'width': 3.0, + 'style': 'solid', + 'strokeAlign': 'inside', + }, + 'left': 'none', + }); + expectJsonSafe(encoded); + }); + }); + + group('borderCodec rejects invalid input', () { + test('rejects unknown keys', () { + expect(borderCodec.safeParse({'foo': 1}).isFail, isTrue); + }); + + test('rejects mixed LTR + directional keys', () { + expect( + borderCodec.safeParse({ + 'top': 'none', + 'right': 'none', + 'start': 'none', + }).isFail, + isTrue, + ); + }); + }); + + group('borderDirectionalCodec decode', () { + test('parses {} as BorderDirectional()', () { + expect(borderDirectionalCodec.parse({}), const BorderDirectional()); + }); + + test('parses a full per-side object with "none" aliases', () { + final parsed = borderDirectionalCodec.parse({ + 'top': 'none', + 'start': {'color': '#FF0000', 'width': 2}, + 'end': 'none', + 'bottom': 'none', + }); + expect( + parsed, + const BorderDirectional( + start: BorderSide(color: Color(0xFFFF0000), width: 2), + ), + ); + }); + + test('rejects "none" at the top level (no scalar shorthand)', () { + expect(borderDirectionalCodec.safeParse('none').isFail, isTrue); + }); + }); + + group('borderDirectionalCodec encode', () { + test('always emits the full object form, never a side shorthand', () { + final encoded = borderDirectionalCodec.encode(const BorderDirectional()); + expect(encoded, { + 'top': 'none', + 'start': 'none', + 'end': 'none', + 'bottom': 'none', + }); + expectJsonSafe(encoded); + }); + + test('encodes mixed sides through borderSideCodec', () { + final encoded = borderDirectionalCodec.encode( + const BorderDirectional( + start: BorderSide(color: Color(0xFFFF0000), width: 2), + ), + ); + expect(encoded, { + 'top': 'none', + 'start': { + 'color': '#FF0000', + 'width': 2.0, + 'style': 'solid', + 'strokeAlign': 'inside', + }, + 'end': 'none', + 'bottom': 'none', + }); + expectJsonSafe(encoded); + }); + }); + + group('boxBorderCodec', () { + test('decodes {top, right, bottom, left} as a Border', () { + final parsed = boxBorderCodec.parse({ + 'top': 'none', + 'right': {'color': '#FF0000'}, + 'bottom': 'none', + 'left': 'none', + }); + expect(parsed, isA()); + expect(parsed, const Border(right: BorderSide(color: Color(0xFFFF0000)))); + }); + + test('decodes {top, start, end, bottom} as a BorderDirectional', () { + final parsed = boxBorderCodec.parse({ + 'top': 'none', + 'start': {'color': '#FF0000'}, + 'end': 'none', + 'bottom': 'none', + }); + expect(parsed, isA()); + expect( + parsed, + const BorderDirectional(start: BorderSide(color: Color(0xFFFF0000))), + ); + }); + + test('decodes "none" as Border (LTR wins on shared alias)', () { + final parsed = boxBorderCodec.parse('none'); + expect(parsed, isA()); + expect(parsed, const Border()); + }); + + test('Border and BorderDirectional encode to their canonical shapes', () { + final borderEncoded = boxBorderCodec.encode(const Border()); + expect(borderEncoded, 'none'); + expectJsonSafe(borderEncoded); + + final directionalEncoded = boxBorderCodec.encode( + const BorderDirectional(), + ); + expect(directionalEncoded, { + 'top': 'none', + 'start': 'none', + 'end': 'none', + 'bottom': 'none', + }); + expectJsonSafe(directionalEncoded); + }); + + test('rejects mixed LTR + directional keys', () { + expect( + boxBorderCodec.safeParse({ + 'top': 'none', + 'right': 'none', + 'start': 'none', + 'bottom': 'none', + }).isFail, + isTrue, + ); + }); + }); + + group('borderCodec JSON Schema', () { + test('width non-negativity flows through composition', () { + // Same pattern as radius_test.dart: ack's NumberSchema.min(0) emits + // `"minimum": 0`, propagated through borderSideCodec into borderCodec's + // anyOf composition. + expect(jsonEncode(borderCodec.toJsonSchema()), contains('"minimum":0')); + }); + }); } diff --git a/packages/flutter_codec/test/primitives/radius_test.dart b/packages/flutter_codec/test/primitives/radius_test.dart index b37aba6f..fa92cc0b 100644 --- a/packages/flutter_codec/test/primitives/radius_test.dart +++ b/packages/flutter_codec/test/primitives/radius_test.dart @@ -1,3 +1,4 @@ +import 'dart:convert'; import 'dart:ui'; import 'package:flutter_codec/flutter_codec.dart'; @@ -50,4 +51,12 @@ void main() { ); }); }); + + group('radiusCodec JSON Schema', () { + test('non-negative constraint is reflected as "minimum": 0', () { + // Locks in the Ack.number().min(0) JSON-Schema reflection — refine + // would silently drop it, the public ComparisonConstraint does not. + expect(jsonEncode(radiusCodec.toJsonSchema()), contains('"minimum":0')); + }); + }); } From 9569e2c5446cba06f69bb4d49c96df994ab7bcbd Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 15:09:13 -0400 Subject: [PATCH 25/53] refactor(ack)!: remove ObjectSchema.model() in favor of .codec() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The .model() extension on ObjectSchema duplicated the .codec() API — same decode/encode signatures, with one extra behavior (omitNullOptionals=true) that silently dropped null entries from encoded JSON when the property was marked optional. That default-true null stripping violated Zod/JSON-Schema semantics: optional (key absent) and nullable (value null) are distinct states, and conflating them caused asymmetric round-trips and silent data loss. It was also redundant with ObjectSchema.encodeWithContext, which already drops null values for non-nullable properties. Removed: - ObjectSchemaModelExtension and its omitNullOptionals flag. Migrated callers: - 6 test sites switched to .codec() (identical signatures). --- .../extensions/object_schema_extensions.dart | 34 ------------------- .../ack/lib/src/schemas/object_schema.dart | 4 +-- packages/ack/test/consolidation_test.dart | 4 +-- packages/ack/test/polish_test.dart | 4 +-- .../typed_codecs_characterization_test.dart | 8 ++--- 5 files changed, 10 insertions(+), 44 deletions(-) diff --git a/packages/ack/lib/src/schemas/extensions/object_schema_extensions.dart b/packages/ack/lib/src/schemas/extensions/object_schema_extensions.dart index 98c43e58..cd332eab 100644 --- a/packages/ack/lib/src/schemas/extensions/object_schema_extensions.dart +++ b/packages/ack/lib/src/schemas/extensions/object_schema_extensions.dart @@ -1,6 +1,4 @@ -import '../../common_types.dart'; import '../schema.dart'; -import 'ack_schema_extensions.dart'; /// Adds fluent validation methods to [ObjectSchema]. extension ObjectSchemaExtensions on ObjectSchema { @@ -68,35 +66,3 @@ extension ObjectSchemaExtensions on ObjectSchema { return copyWith(properties: newProperties); } } - -/// Extension that turns an [ObjectSchema] into a bidirectional codec mapping -/// the underlying [JsonMap] to a typed Dart model [Runtime]. -extension ObjectSchemaModelExtension on ObjectSchema { - /// Creates a [CodecSchema] that decodes a parsed [JsonMap] into [Runtime] - /// and encodes [Runtime] back to [JsonMap]. - /// - /// When [omitNullOptionals] is true, the encoded map drops `null` entries - /// whose property schema is marked optional. - CodecSchema model({ - required Runtime Function(JsonMap data) decode, - required JsonMap Function(Runtime value) encode, - AckSchema? output, - bool omitNullOptionals = true, - }) { - final self = this; - return self.codec( - output: output ?? InstanceSchema(), - decode: decode, - encode: (value) { - final raw = encode(value); - if (!omitNullOptionals) return raw; - return { - for (final entry in raw.entries) - if (!(entry.value == null && - (self.properties[entry.key]?.isOptional ?? false))) - entry.key: entry.value, - }; - }, - ); - } -} diff --git a/packages/ack/lib/src/schemas/object_schema.dart b/packages/ack/lib/src/schemas/object_schema.dart index c86509b7..2578826a 100644 --- a/packages/ack/lib/src/schemas/object_schema.dart +++ b/packages/ack/lib/src/schemas/object_schema.dart @@ -3,8 +3,8 @@ part of 'schema.dart'; /// Schema for validating `JsonMap` shaped values. /// /// `ObjectSchema` has identical boundary and runtime types -/// (`AckSchema`). Use [ObjectSchemaModelExtension.model] to -/// map an object shape to a typed Dart model. +/// (`AckSchema`). Use [AckSchemaExtensions.codec] to map an +/// object shape to a typed Dart model. /// /// ## Optional / nullable semantics /// diff --git a/packages/ack/test/consolidation_test.dart b/packages/ack/test/consolidation_test.dart index 64fecd29..d04f22d4 100644 --- a/packages/ack/test/consolidation_test.dart +++ b/packages/ack/test/consolidation_test.dart @@ -165,7 +165,7 @@ void main() { Ack.object({ 'kind': Ack.literal('foo'), 'created': Ack.datetime(), - }).model<_Foo>( + }).codec<_Foo>( decode: (data) => _Foo(data['created'] as DateTime), encode: (foo) => {'kind': 'foo', 'created': foo.created}, ), @@ -423,7 +423,7 @@ void main() { Ack.object({ 'type': Ack.literal('foo'), 'created': Ack.datetime(), - }).model<_Foo>( + }).codec<_Foo>( decode: (data) => _Foo(data['created'] as DateTime), encode: (foo) => {'type': 'foo', 'created': foo.created}, ), diff --git a/packages/ack/test/polish_test.dart b/packages/ack/test/polish_test.dart index 4835eba1..5566ee6b 100644 --- a/packages/ack/test/polish_test.dart +++ b/packages/ack/test/polish_test.dart @@ -201,7 +201,7 @@ void main() { discriminatorKey: 'kind', schemas: { 'cat': Ack.object({'kind': Ack.literal('cat'), 'name': Ack.string()}) - .model<_Cat>( + .codec<_Cat>( decode: (data) => _Cat(data['name'] as String), // Branch encoder lies about its kind. encode: (cat) => {'kind': 'wrong-kind', 'name': cat.name}, @@ -217,7 +217,7 @@ void main() { discriminatorKey: 'kind', schemas: { 'cat': Ack.object({'kind': Ack.literal('cat'), 'name': Ack.string()}) - .model<_Cat>( + .codec<_Cat>( decode: (data) => _Cat(data['name'] as String), encode: (cat) => {'kind': 'cat', 'name': cat.name}, ), diff --git a/packages/ack/test/typed_codecs_characterization_test.dart b/packages/ack/test/typed_codecs_characterization_test.dart index 676d863b..738fe407 100644 --- a/packages/ack/test/typed_codecs_characterization_test.dart +++ b/packages/ack/test/typed_codecs_characterization_test.dart @@ -203,8 +203,8 @@ void main() { }); group('Object model mapping', () { - test('ObjectSchema.model parses model and encodes JsonMap', () { - final schema = Ack.object({'createdAt': Ack.datetime()}).model<_Event>( + test('ObjectSchema.codec parses model and encodes JsonMap', () { + final schema = Ack.object({'createdAt': Ack.datetime()}).codec<_Event>( decode: (data) => _Event(data['createdAt'] as DateTime), encode: (event) => {'createdAt': event.createdAt}, ); @@ -219,12 +219,12 @@ void main() { expect(encoded, {'createdAt': '2026-05-10T00:00:00.000Z'}); }); - test('model encoder injects missing defaulted property', () { + test('codec encoder injects missing defaulted property', () { final schema = Ack.object({ 'name': Ack.string(), 'role': Ack.string().withDefault('user'), - }).model<_User>( + }).codec<_User>( decode: (data) => _User(data['name'] as String), encode: (user) => {'name': user.name}, ); From 0c1650f7e91c1a0f06b5eff67fd58fca33e81479 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 15:13:41 -0400 Subject: [PATCH 26/53] feat(flutter_codec): add Shadow, BoxShadow, and Gradient family codecs - Shadow / BoxShadow leaf codecs (lib/src/shadows.dart) composing colorCodec, offsetCodec, and blurStyleCodec; blurRadius enforces non-negativity via Ack.number().min(0). - LinearGradient / RadialGradient / SweepGradient and a Gradient union (lib/src/gradients.dart), tagged with a 'type' discriminator via Ack.literal. colors.minItems(2); stops/focal are .nullable().optional(). transform (GradientTransform) is documented as unsupported. - Switch all flutter_codec sites from .model() to .codec() for uniform API; .codec already defaults output to InstanceSchema. Null-optional fields now encode explicitly rather than being stripped. --- packages/flutter_codec/lib/flutter_codec.dart | 2 + packages/flutter_codec/lib/src/borders.dart | 2 +- packages/flutter_codec/lib/src/gradients.dart | 145 ++++++++++ .../lib/src/primitives/border_radius.dart | 2 +- .../lib/src/primitives/edge_insets.dart | 2 +- .../lib/src/primitives/offset.dart | 2 +- packages/flutter_codec/lib/src/shadows.dart | 59 ++++ .../test/gradients/gradients_test.dart | 272 ++++++++++++++++++ .../test/shadows/shadows_test.dart | 160 +++++++++++ 9 files changed, 642 insertions(+), 4 deletions(-) create mode 100644 packages/flutter_codec/lib/src/gradients.dart create mode 100644 packages/flutter_codec/lib/src/shadows.dart create mode 100644 packages/flutter_codec/test/gradients/gradients_test.dart create mode 100644 packages/flutter_codec/test/shadows/shadows_test.dart diff --git a/packages/flutter_codec/lib/flutter_codec.dart b/packages/flutter_codec/lib/flutter_codec.dart index bd13d681..f8614694 100644 --- a/packages/flutter_codec/lib/flutter_codec.dart +++ b/packages/flutter_codec/lib/flutter_codec.dart @@ -3,4 +3,6 @@ library; export 'src/borders.dart'; export 'src/enums.dart'; +export 'src/gradients.dart'; export 'src/primitives.dart'; +export 'src/shadows.dart'; diff --git a/packages/flutter_codec/lib/src/borders.dart b/packages/flutter_codec/lib/src/borders.dart index d1a1c623..fefd7118 100644 --- a/packages/flutter_codec/lib/src/borders.dart +++ b/packages/flutter_codec/lib/src/borders.dart @@ -153,7 +153,7 @@ final borderDirectionalCodec = 'start': borderSideCodec.withDefault(BorderSide.none), 'end': borderSideCodec.withDefault(BorderSide.none), 'bottom': borderSideCodec.withDefault(BorderSide.none), - }).model( + }).codec( decode: (data) => BorderDirectional( top: data['top']! as BorderSide, start: data['start']! as BorderSide, diff --git a/packages/flutter_codec/lib/src/gradients.dart b/packages/flutter_codec/lib/src/gradients.dart new file mode 100644 index 00000000..326d1316 --- /dev/null +++ b/packages/flutter_codec/lib/src/gradients.dart @@ -0,0 +1,145 @@ +import 'dart:math' as math; + +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show + Alignment, + AlignmentGeometry, + Color, + Gradient, + LinearGradient, + RadialGradient, + SweepGradient, + TileMode; + +import 'enums.dart' show tileModeCodec; +import 'numbers.dart'; +import 'primitives/alignment.dart' show alignmentGeometryCodec; +import 'primitives/color.dart' show colorCodec; + +/// Reads the `colors` field, validated by the schema as a `List`. +List _readColors(JsonMap data) => + (data['colors']! as List).cast(); + +/// Reads the optional `stops` field as `List?`. +List? _readStops(JsonMap data) { + final raw = data['stops']; + if (raw == null) return null; + + return (raw as List).map((s) => (s as num).toDouble()).toList(); +} + +/// Codec for [LinearGradient]. Tagged with `"type": "linear"`. +/// +/// `colors` is required and must contain at least two entries. `stops`, when +/// non-null, should have the same length as `colors` (enforced by Flutter at +/// paint time, not by the schema). `transform` is not supported — apply +/// gradient transforms outside the codec layer. +final linearGradientCodec = + Ack.object({ + 'type': Ack.literal('linear'), + 'begin': alignmentGeometryCodec.withDefault(Alignment.centerLeft), + 'end': alignmentGeometryCodec.withDefault(Alignment.centerRight), + 'colors': Ack.list(colorCodec).minItems(2), + 'stops': Ack.list(Ack.number()).nullable().optional(), + 'tileMode': tileModeCodec.withDefault(TileMode.clamp), + }).codec( + decode: (data) => LinearGradient( + begin: data['begin']! as AlignmentGeometry, + end: data['end']! as AlignmentGeometry, + colors: _readColors(data), + stops: _readStops(data), + tileMode: data['tileMode']! as TileMode, + ), + encode: (value) => { + 'type': 'linear', + 'begin': value.begin, + 'end': value.end, + 'colors': value.colors, + 'stops': value.stops, + 'tileMode': value.tileMode, + }, + ); + +/// Codec for [RadialGradient]. Tagged with `"type": "radial"`. +/// +/// `radius` and `focalRadius` are non-negative. `focal` is optional. See +/// [linearGradientCodec] for shared notes on `colors`, `stops`, and +/// `transform`. +final radialGradientCodec = + Ack.object({ + 'type': Ack.literal('radial'), + 'center': alignmentGeometryCodec.withDefault(Alignment.center), + 'radius': Ack.number().min(0).withDefault(0.5), + 'colors': Ack.list(colorCodec).minItems(2), + 'stops': Ack.list(Ack.number()).nullable().optional(), + 'tileMode': tileModeCodec.withDefault(TileMode.clamp), + 'focal': alignmentGeometryCodec.nullable().optional(), + 'focalRadius': Ack.number().min(0).withDefault(0.0), + }).codec( + decode: (data) => RadialGradient( + center: data['center']! as AlignmentGeometry, + radius: readDouble(data, 'radius'), + colors: _readColors(data), + stops: _readStops(data), + tileMode: data['tileMode']! as TileMode, + focal: data['focal'] as AlignmentGeometry?, + focalRadius: readDouble(data, 'focalRadius'), + ), + encode: (value) => { + 'type': 'radial', + 'center': value.center, + 'radius': value.radius, + 'colors': value.colors, + 'stops': value.stops, + 'tileMode': value.tileMode, + 'focal': value.focal, + 'focalRadius': value.focalRadius, + }, + ); + +/// Codec for [SweepGradient]. Tagged with `"type": "sweep"`. +/// +/// `startAngle` and `endAngle` are radians (default `0.0` and `2π`). See +/// [linearGradientCodec] for shared notes on `colors`, `stops`, and +/// `transform`. +final sweepGradientCodec = + Ack.object({ + 'type': Ack.literal('sweep'), + 'center': alignmentGeometryCodec.withDefault(Alignment.center), + 'startAngle': Ack.number().withDefault(0.0), + 'endAngle': Ack.number().withDefault(math.pi * 2), + 'colors': Ack.list(colorCodec).minItems(2), + 'stops': Ack.list(Ack.number()).nullable().optional(), + 'tileMode': tileModeCodec.withDefault(TileMode.clamp), + }).codec( + decode: (data) => SweepGradient( + center: data['center']! as AlignmentGeometry, + startAngle: readDouble(data, 'startAngle'), + endAngle: readDouble(data, 'endAngle'), + colors: _readColors(data), + stops: _readStops(data), + tileMode: data['tileMode']! as TileMode, + ), + encode: (value) => { + 'type': 'sweep', + 'center': value.center, + 'startAngle': value.startAngle, + 'endAngle': value.endAngle, + 'colors': value.colors, + 'stops': value.stops, + 'tileMode': value.tileMode, + }, + ); + +/// Codec for [Gradient], unioning the three concrete gradient codecs via the +/// `"type"` discriminator. Encoding dispatches by runtime type. +final gradientCodec = + Ack.anyOf([ + linearGradientCodec, + radialGradientCodec, + sweepGradientCodec, + ]).codec( + decode: (value) => value as Gradient, + encode: (value) => value, + ); diff --git a/packages/flutter_codec/lib/src/primitives/border_radius.dart b/packages/flutter_codec/lib/src/primitives/border_radius.dart index 54b8349a..38d2d833 100644 --- a/packages/flutter_codec/lib/src/primitives/border_radius.dart +++ b/packages/flutter_codec/lib/src/primitives/border_radius.dart @@ -60,7 +60,7 @@ final borderRadiusDirectionalCodec = 'topEnd': radiusCodec.withDefault(Radius.zero), 'bottomStart': radiusCodec.withDefault(Radius.zero), 'bottomEnd': radiusCodec.withDefault(Radius.zero), - }).model( + }).codec( decode: (data) => BorderRadiusDirectional.only( topStart: data['topStart']! as Radius, topEnd: data['topEnd']! as Radius, diff --git a/packages/flutter_codec/lib/src/primitives/edge_insets.dart b/packages/flutter_codec/lib/src/primitives/edge_insets.dart index 112ca393..35e7ef42 100644 --- a/packages/flutter_codec/lib/src/primitives/edge_insets.dart +++ b/packages/flutter_codec/lib/src/primitives/edge_insets.dart @@ -60,7 +60,7 @@ final edgeInsetsDirectionalCodec = 'top': Ack.number().withDefault(0.0), 'end': Ack.number().withDefault(0.0), 'bottom': Ack.number().withDefault(0.0), - }).model( + }).codec( decode: (data) => EdgeInsetsDirectional.fromSTEB( readDouble(data, 'start'), readDouble(data, 'top'), diff --git a/packages/flutter_codec/lib/src/primitives/offset.dart b/packages/flutter_codec/lib/src/primitives/offset.dart index 8159af82..de75f8f5 100644 --- a/packages/flutter_codec/lib/src/primitives/offset.dart +++ b/packages/flutter_codec/lib/src/primitives/offset.dart @@ -5,7 +5,7 @@ import '../numbers.dart'; /// Codec for [Offset], represented as `{"x": ..., "y": ...}`. final offsetCodec = Ack.object({'x': Ack.number(), 'y': Ack.number()}) - .model( + .codec( decode: (data) => Offset(readDouble(data, 'x'), readDouble(data, 'y')), encode: (value) => {'x': value.dx, 'y': value.dy}, ); diff --git a/packages/flutter_codec/lib/src/shadows.dart b/packages/flutter_codec/lib/src/shadows.dart new file mode 100644 index 00000000..673624f3 --- /dev/null +++ b/packages/flutter_codec/lib/src/shadows.dart @@ -0,0 +1,59 @@ +import 'dart:ui' as ui show Shadow; + +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' show BlurStyle, BoxShadow, Color, Offset; + +import 'enums.dart' show blurStyleCodec; +import 'numbers.dart'; +import 'primitives/color.dart' show colorCodec; +import 'primitives/offset.dart' show offsetCodec; + +/// Codec for [ui.Shadow], an object `{color, offset, blurRadius}` with each +/// field optional and falling back to the [ui.Shadow] constructor defaults. +/// `{}` decodes to `const ui.Shadow()`. +final shadowCodec = + Ack.object({ + 'color': colorCodec.withDefault(const Color(0xFF000000)), + 'offset': offsetCodec.withDefault(Offset.zero), + 'blurRadius': Ack.number().min(0).withDefault(0.0), + }).codec( + decode: (data) => ui.Shadow( + color: data['color']! as Color, + offset: data['offset']! as Offset, + blurRadius: readDouble(data, 'blurRadius'), + ), + encode: (value) => { + 'color': value.color, + 'offset': value.offset, + 'blurRadius': value.blurRadius, + }, + ); + +/// Codec for [BoxShadow], extending the [shadowCodec] field set with +/// `spreadRadius` and `blurStyle`. `{}` decodes to `const BoxShadow()`. +/// +/// `blurRadius` is non-negative (Flutter requirement). `spreadRadius` is +/// unconstrained — negative values shrink the shadow. +final boxShadowCodec = + Ack.object({ + 'color': colorCodec.withDefault(const Color(0xFF000000)), + 'offset': offsetCodec.withDefault(Offset.zero), + 'blurRadius': Ack.number().min(0).withDefault(0.0), + 'spreadRadius': Ack.number().withDefault(0.0), + 'blurStyle': blurStyleCodec.withDefault(BlurStyle.normal), + }).codec( + decode: (data) => BoxShadow( + color: data['color']! as Color, + offset: data['offset']! as Offset, + blurRadius: readDouble(data, 'blurRadius'), + spreadRadius: readDouble(data, 'spreadRadius'), + blurStyle: data['blurStyle']! as BlurStyle, + ), + encode: (value) => { + 'color': value.color, + 'offset': value.offset, + 'blurRadius': value.blurRadius, + 'spreadRadius': value.spreadRadius, + 'blurStyle': value.blurStyle, + }, + ); diff --git a/packages/flutter_codec/test/gradients/gradients_test.dart b/packages/flutter_codec/test/gradients/gradients_test.dart new file mode 100644 index 00000000..73f2044a --- /dev/null +++ b/packages/flutter_codec/test/gradients/gradients_test.dart @@ -0,0 +1,272 @@ +import 'dart:convert'; +import 'dart:math' as math; + +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +const _redBlue = [Color(0xFFFF0000), Color(0xFF0000FF)]; +const _redBlueHex = ['#FF0000', '#0000FF']; + +void main() { + group('linearGradientCodec decode', () { + test('parses a minimal input with defaults', () { + expect( + linearGradientCodec.parse({'type': 'linear', 'colors': _redBlueHex}), + const LinearGradient(colors: _redBlue), + ); + }); + + test('parses a full input', () { + expect( + linearGradientCodec.parse({ + 'type': 'linear', + 'begin': 'topLeft', + 'end': 'bottomRight', + 'colors': _redBlueHex, + 'stops': [0.0, 1.0], + 'tileMode': 'mirror', + }), + const LinearGradient( + begin: Alignment.topLeft, + end: Alignment.bottomRight, + colors: _redBlue, + stops: [0.0, 1.0], + tileMode: TileMode.mirror, + ), + ); + }); + }); + + group('linearGradientCodec encode', () { + test('emits a full canonical object with discriminator', () { + // .codec() emits optional null fields explicitly (no null-stripping, + // unlike .model()). + final encoded = linearGradientCodec.encode( + const LinearGradient(colors: _redBlue), + ); + expect(encoded, { + 'type': 'linear', + 'begin': 'centerLeft', + 'end': 'centerRight', + 'colors': _redBlueHex, + 'stops': null, + 'tileMode': 'clamp', + }); + expectJsonSafe(encoded); + }); + + test('encodes stops when provided', () { + final encoded = + linearGradientCodec.encode( + const LinearGradient(colors: _redBlue, stops: [0.0, 1.0]), + ) + as Map; + expect(encoded['stops'], [0.0, 1.0]); + expectJsonSafe(encoded); + }); + }); + + group('linearGradientCodec rejects invalid input', () { + const invalidCases = { + 'wrong discriminator': {'type': 'radial', 'colors': _redBlueHex}, + 'single-color list': { + 'type': 'linear', + 'colors': ['#FF0000'], + }, + 'missing colors': {'type': 'linear'}, + 'extra property': {'type': 'linear', 'colors': _redBlueHex, 'foo': 1}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(linearGradientCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + + group('radialGradientCodec decode', () { + test('parses a minimal input with defaults', () { + expect( + radialGradientCodec.parse({'type': 'radial', 'colors': _redBlueHex}), + const RadialGradient(colors: _redBlue), + ); + }); + + test('parses focal and focalRadius', () { + expect( + radialGradientCodec.parse({ + 'type': 'radial', + 'colors': _redBlueHex, + 'focal': 'topLeft', + 'focalRadius': 0.25, + }), + const RadialGradient( + colors: _redBlue, + focal: Alignment.topLeft, + focalRadius: 0.25, + ), + ); + }); + }); + + group('radialGradientCodec encode', () { + test('emits null optional fields (stops, focal) explicitly', () { + final encoded = radialGradientCodec.encode( + const RadialGradient(colors: _redBlue), + ); + expect(encoded, { + 'type': 'radial', + 'center': 'center', + 'radius': 0.5, + 'colors': _redBlueHex, + 'stops': null, + 'tileMode': 'clamp', + 'focal': null, + 'focalRadius': 0.0, + }); + expectJsonSafe(encoded); + }); + + test('round-trips focal when present', () { + const original = RadialGradient( + colors: _redBlue, + focal: Alignment.topLeft, + focalRadius: 0.25, + ); + final encoded = radialGradientCodec.encode(original) as Map; + expect(encoded['focal'], 'topLeft'); + expect(radialGradientCodec.parse(encoded), original); + expectJsonSafe(encoded); + }); + }); + + group('radialGradientCodec rejects invalid input', () { + test('rejects negative radius', () { + expect( + radialGradientCodec.safeParse({ + 'type': 'radial', + 'colors': _redBlueHex, + 'radius': -1, + }).isFail, + isTrue, + ); + }); + + test('rejects negative focalRadius', () { + expect( + radialGradientCodec.safeParse({ + 'type': 'radial', + 'colors': _redBlueHex, + 'focalRadius': -0.1, + }).isFail, + isTrue, + ); + }); + }); + + group('sweepGradientCodec decode', () { + test('parses a minimal input with defaults', () { + expect( + sweepGradientCodec.parse({'type': 'sweep', 'colors': _redBlueHex}), + const SweepGradient(colors: _redBlue), + ); + }); + + test('parses startAngle/endAngle', () { + expect( + sweepGradientCodec.parse({ + 'type': 'sweep', + 'colors': _redBlueHex, + 'startAngle': 1.0, + 'endAngle': 2.0, + }), + const SweepGradient(colors: _redBlue, startAngle: 1, endAngle: 2), + ); + }); + }); + + group('sweepGradientCodec encode', () { + test('default endAngle is math.pi * 2', () { + final encoded = + sweepGradientCodec.encode(const SweepGradient(colors: _redBlue)) + as Map; + expect(encoded['startAngle'], 0.0); + expect(encoded['endAngle'], closeTo(math.pi * 2, 1e-9)); + expect(encoded['type'], 'sweep'); + expectJsonSafe(encoded); + }); + }); + + group('gradientCodec', () { + test('parses {type: linear, ...} as a LinearGradient', () { + final parsed = gradientCodec.parse({ + 'type': 'linear', + 'colors': _redBlueHex, + }); + expect(parsed, isA()); + expect(parsed, const LinearGradient(colors: _redBlue)); + }); + + test('parses {type: radial, ...} as a RadialGradient', () { + final parsed = gradientCodec.parse({ + 'type': 'radial', + 'colors': _redBlueHex, + }); + expect(parsed, isA()); + expect(parsed, const RadialGradient(colors: _redBlue)); + }); + + test('parses {type: sweep, ...} as a SweepGradient', () { + final parsed = gradientCodec.parse({ + 'type': 'sweep', + 'colors': _redBlueHex, + }); + expect(parsed, isA()); + expect(parsed, const SweepGradient(colors: _redBlue)); + }); + + test('rejects an unknown discriminator', () { + expect( + gradientCodec.safeParse({ + 'type': 'spiral', + 'colors': _redBlueHex, + }).isFail, + isTrue, + ); + }); + + test('encode dispatches by runtime type', () { + final linear = gradientCodec.encode( + const LinearGradient(colors: _redBlue), + ); + expect((linear as Map)['type'], 'linear'); + + final radial = gradientCodec.encode( + const RadialGradient(colors: _redBlue), + ); + expect((radial as Map)['type'], 'radial'); + + final sweep = gradientCodec.encode(const SweepGradient(colors: _redBlue)); + expect((sweep as Map)['type'], 'sweep'); + + expectJsonSafe(linear); + expectJsonSafe(radial); + expectJsonSafe(sweep); + }); + }); + + group('gradientCodec JSON Schema', () { + test('discriminators and numeric constraints flow through', () { + final schema = jsonEncode(gradientCodec.toJsonSchema()); + // Ack.literal emits "const":"" for each branch's type field. + expect(schema, contains('"const":"linear"')); + expect(schema, contains('"const":"radial"')); + expect(schema, contains('"const":"sweep"')); + // radius / focalRadius non-negativity propagates from Ack.number().min(0). + expect(schema, contains('"minimum":0')); + }); + }); +} diff --git a/packages/flutter_codec/test/shadows/shadows_test.dart b/packages/flutter_codec/test/shadows/shadows_test.dart new file mode 100644 index 00000000..253c59d4 --- /dev/null +++ b/packages/flutter_codec/test/shadows/shadows_test.dart @@ -0,0 +1,160 @@ +import 'dart:ui' as ui show Shadow; + +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('shadowCodec decode', () { + test('parses {} as the default ui.Shadow', () { + expect(shadowCodec.parse({}), const ui.Shadow()); + }); + + test('applies defaults to a partial object', () { + expect( + shadowCodec.parse({'color': '#FF0000'}), + const ui.Shadow(color: Color(0xFFFF0000)), + ); + }); + + test('parses a full object', () { + expect( + shadowCodec.parse({ + 'color': '#FF0000', + 'offset': {'x': 2, 'y': 4}, + 'blurRadius': 6, + }), + const ui.Shadow( + color: Color(0xFFFF0000), + offset: Offset(2, 4), + blurRadius: 6, + ), + ); + }); + }); + + group('shadowCodec encode', () { + test('emits a full canonical object including defaults', () { + final encoded = shadowCodec.encode(const ui.Shadow()); + expect(encoded, { + 'color': '#000000', + 'offset': {'x': 0.0, 'y': 0.0}, + 'blurRadius': 0.0, + }); + expectJsonSafe(encoded); + }); + + test('encodes a customized Shadow', () { + final encoded = shadowCodec.encode( + const ui.Shadow( + color: Color(0xFFFF0000), + offset: Offset(2, 4), + blurRadius: 6, + ), + ); + expect(encoded, { + 'color': '#FF0000', + 'offset': {'x': 2.0, 'y': 4.0}, + 'blurRadius': 6.0, + }); + expectJsonSafe(encoded); + }); + }); + + group('shadowCodec rejects invalid input', () { + const invalidCases = { + 'negative blurRadius': {'blurRadius': -1}, + 'non-finite blurRadius': {'blurRadius': double.infinity}, + 'invalid color': {'color': 'not-a-color'}, + 'extra property': {'unexpected': true}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(shadowCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + + group('boxShadowCodec decode', () { + test('parses {} as the default BoxShadow', () { + expect(boxShadowCodec.parse({}), const BoxShadow()); + }); + + test('parses a full object including spreadRadius + blurStyle', () { + expect( + boxShadowCodec.parse({ + 'color': '#FF0000', + 'offset': {'x': 2, 'y': 4}, + 'blurRadius': 6, + 'spreadRadius': 1, + 'blurStyle': 'outer', + }), + const BoxShadow( + color: Color(0xFFFF0000), + offset: Offset(2, 4), + blurRadius: 6, + spreadRadius: 1, + blurStyle: BlurStyle.outer, + ), + ); + }); + + test('accepts negative spreadRadius (Flutter allows shrinking)', () { + expect( + boxShadowCodec.parse({'spreadRadius': -2}), + const BoxShadow(spreadRadius: -2), + ); + }); + }); + + group('boxShadowCodec encode', () { + test('emits a full canonical object including defaults', () { + final encoded = boxShadowCodec.encode(const BoxShadow()); + expect(encoded, { + 'color': '#000000', + 'offset': {'x': 0.0, 'y': 0.0}, + 'blurRadius': 0.0, + 'spreadRadius': 0.0, + 'blurStyle': 'normal', + }); + expectJsonSafe(encoded); + }); + + test('encodes a customized BoxShadow', () { + final encoded = boxShadowCodec.encode( + const BoxShadow( + color: Color(0xFFFF0000), + offset: Offset(2, 4), + blurRadius: 6, + spreadRadius: 1, + blurStyle: BlurStyle.outer, + ), + ); + expect(encoded, { + 'color': '#FF0000', + 'offset': {'x': 2.0, 'y': 4.0}, + 'blurRadius': 6.0, + 'spreadRadius': 1.0, + 'blurStyle': 'outer', + }); + expectJsonSafe(encoded); + }); + }); + + group('boxShadowCodec rejects invalid input', () { + const invalidCases = { + 'negative blurRadius': {'blurRadius': -1}, + 'invalid blurStyle': {'blurStyle': 'fuzzy'}, + 'extra property': {'unexpected': true}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(boxShadowCodec.safeParse(input).isFail, isTrue); + }); + }); + }); +} From 29915d5c375227dc6ba4c9eb5989083c47d23192 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 16:29:41 -0400 Subject: [PATCH 27/53] feat(flutter_codec): add codecs for FontWeight, Locale, TextDecoration, and TextStyle with corresponding tests --- packages/flutter_codec/lib/flutter_codec.dart | 1 + .../flutter_codec/lib/src/primitives.dart | 3 + .../lib/src/primitives/font_weight.dart | 57 ++++++ .../lib/src/primitives/locale.dart | 37 ++++ .../lib/src/primitives/text_decoration.dart | 54 +++++ .../flutter_codec/lib/src/text_style.dart | 190 ++++++++++++++++++ .../test/primitives/font_weight_test.dart | 67 ++++++ .../test/primitives/locale_test.dart | 51 +++++ .../test/primitives/text_decoration_test.dart | 90 +++++++++ .../test/text_style/text_style_test.dart | 181 +++++++++++++++++ 10 files changed, 731 insertions(+) create mode 100644 packages/flutter_codec/lib/src/primitives/font_weight.dart create mode 100644 packages/flutter_codec/lib/src/primitives/locale.dart create mode 100644 packages/flutter_codec/lib/src/primitives/text_decoration.dart create mode 100644 packages/flutter_codec/lib/src/text_style.dart create mode 100644 packages/flutter_codec/test/primitives/font_weight_test.dart create mode 100644 packages/flutter_codec/test/primitives/locale_test.dart create mode 100644 packages/flutter_codec/test/primitives/text_decoration_test.dart create mode 100644 packages/flutter_codec/test/text_style/text_style_test.dart diff --git a/packages/flutter_codec/lib/flutter_codec.dart b/packages/flutter_codec/lib/flutter_codec.dart index f8614694..9826a51d 100644 --- a/packages/flutter_codec/lib/flutter_codec.dart +++ b/packages/flutter_codec/lib/flutter_codec.dart @@ -6,3 +6,4 @@ export 'src/enums.dart'; export 'src/gradients.dart'; export 'src/primitives.dart'; export 'src/shadows.dart'; +export 'src/text_style.dart'; diff --git a/packages/flutter_codec/lib/src/primitives.dart b/packages/flutter_codec/lib/src/primitives.dart index b2a3416c..1d0610cd 100644 --- a/packages/flutter_codec/lib/src/primitives.dart +++ b/packages/flutter_codec/lib/src/primitives.dart @@ -2,5 +2,8 @@ export 'primitives/alignment.dart'; export 'primitives/border_radius.dart'; export 'primitives/color.dart'; export 'primitives/edge_insets.dart'; +export 'primitives/font_weight.dart'; +export 'primitives/locale.dart'; export 'primitives/offset.dart'; export 'primitives/radius.dart'; +export 'primitives/text_decoration.dart'; diff --git a/packages/flutter_codec/lib/src/primitives/font_weight.dart b/packages/flutter_codec/lib/src/primitives/font_weight.dart new file mode 100644 index 00000000..d188b894 --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/font_weight.dart @@ -0,0 +1,57 @@ +import 'dart:ui' show FontWeight; + +import 'package:ack/ack.dart'; + +/// Named [FontWeight] values encoded as canonical `wNNN` string aliases. +enum _FontWeight { w100, w200, w300, w400, w500, w600, w700, w800, w900 } + +/// Codec for [FontWeight]. +/// +/// Accepts `"w100"` through `"w900"` plus the conventional aliases +/// `"normal"` and `"bold"`. Encoding canonicalizes aliases back to the +/// numeric `wNNN` form. +final fontWeightCodec = Ack.codec( + input: Ack.anyOf([ + Ack.literal('normal'), + Ack.literal('bold'), + Ack.enumCodec(_FontWeight.values), + ]), + decode: _decodeFontWeight, + encode: _encodeFontWeight, +); + +FontWeight _decodeFontWeight(Object value) { + if (value == 'normal') return FontWeight.normal; + if (value == 'bold') return FontWeight.bold; + + return switch (value as _FontWeight) { + _FontWeight.w100 => FontWeight.w100, + _FontWeight.w200 => FontWeight.w200, + _FontWeight.w300 => FontWeight.w300, + _FontWeight.w400 => FontWeight.w400, + _FontWeight.w500 => FontWeight.w500, + _FontWeight.w600 => FontWeight.w600, + _FontWeight.w700 => FontWeight.w700, + _FontWeight.w800 => FontWeight.w800, + _FontWeight.w900 => FontWeight.w900, + }; +} + +Object _encodeFontWeight(FontWeight value) { + return switch (value.value) { + 100 => _FontWeight.w100, + 200 => _FontWeight.w200, + 300 => _FontWeight.w300, + 400 => _FontWeight.w400, + 500 => _FontWeight.w500, + 600 => _FontWeight.w600, + 700 => _FontWeight.w700, + 800 => _FontWeight.w800, + 900 => _FontWeight.w900, + _ => throw ArgumentError.value( + value, + 'value', + 'Expected a FontWeight value from w100 through w900.', + ), + }; +} diff --git a/packages/flutter_codec/lib/src/primitives/locale.dart b/packages/flutter_codec/lib/src/primitives/locale.dart new file mode 100644 index 00000000..ed453256 --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/locale.dart @@ -0,0 +1,37 @@ +import 'dart:ui' show Locale; + +import 'package:ack/ack.dart'; + +const _localePattern = r'^[a-z]{2,3}(?:-[A-Z][a-z]{3})?(?:-[A-Z]{2}|\d{3})?$'; + +/// Codec for [Locale] using BCP-47 language tags. +/// +/// Supports language-only tags (`"en"`), language-region tags (`"en-US"`), +/// and language-script-region tags (`"zh-Hans-CN"`). Encoding delegates to +/// [Locale.toLanguageTag]. +final localeCodec = Ack.codec( + input: Ack.string().matches(_localePattern), + decode: _decodeLocale, + encode: (value) => value.toLanguageTag(), +); + +Locale _decodeLocale(String value) { + final parts = value.split('-'); + final languageCode = parts.first; + String? scriptCode; + String? countryCode; + + for (final part in parts.skip(1)) { + if (part.length == 4) { + scriptCode = part; + } else { + countryCode = part; + } + } + + return Locale.fromSubtags( + languageCode: languageCode, + scriptCode: scriptCode, + countryCode: countryCode, + ); +} diff --git a/packages/flutter_codec/lib/src/primitives/text_decoration.dart b/packages/flutter_codec/lib/src/primitives/text_decoration.dart new file mode 100644 index 00000000..1277d185 --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/text_decoration.dart @@ -0,0 +1,54 @@ +import 'dart:ui' show TextDecoration; + +import 'package:ack/ack.dart'; + +/// Atomic [TextDecoration] aliases, encoded as string names. +enum _TextDecoration { none, underline, overline, lineThrough } + +final _atomicCodec = Ack.enumCodec(_TextDecoration.values); + +/// Codec for [TextDecoration]. +/// +/// Accepts atomic aliases such as `"underline"` and combined arrays such as +/// `["underline", "overline"]`. Encoding emits the shortest canonical form: +/// a bare string for atomic values and an array for composed values. +final textDecorationCodec = Ack.codec( + input: Ack.anyOf([_atomicCodec, Ack.list(_atomicCodec)]), + decode: _decodeTextDecoration, + encode: _encodeTextDecoration, +); + +TextDecoration _decodeTextDecoration(Object value) { + if (value is _TextDecoration) return _atomicToTextDecoration(value); + + final decorations = (value as List) + .cast<_TextDecoration>() + .map(_atomicToTextDecoration) + .where((decoration) => decoration != TextDecoration.none) + .toList(); + if (decorations.isEmpty) return TextDecoration.none; + + return TextDecoration.combine(decorations); +} + +TextDecoration _atomicToTextDecoration(_TextDecoration value) { + return switch (value) { + _TextDecoration.none => TextDecoration.none, + _TextDecoration.underline => TextDecoration.underline, + _TextDecoration.overline => TextDecoration.overline, + _TextDecoration.lineThrough => TextDecoration.lineThrough, + }; +} + +Object _encodeTextDecoration(TextDecoration value) { + if (value == TextDecoration.none) return _TextDecoration.none; + if (value == TextDecoration.underline) return _TextDecoration.underline; + if (value == TextDecoration.overline) return _TextDecoration.overline; + if (value == TextDecoration.lineThrough) return _TextDecoration.lineThrough; + + return [ + if (value.contains(TextDecoration.underline)) _TextDecoration.underline, + if (value.contains(TextDecoration.overline)) _TextDecoration.overline, + if (value.contains(TextDecoration.lineThrough)) _TextDecoration.lineThrough, + ]; +} diff --git a/packages/flutter_codec/lib/src/text_style.dart b/packages/flutter_codec/lib/src/text_style.dart new file mode 100644 index 00000000..a1280d30 --- /dev/null +++ b/packages/flutter_codec/lib/src/text_style.dart @@ -0,0 +1,190 @@ +import 'dart:ui' as ui show Locale, Shadow; + +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show + Color, + FontStyle, + FontWeight, + TextBaseline, + TextDecoration, + TextDecorationStyle, + TextLeadingDistribution, + TextOverflow, + TextStyle; + +import 'enums.dart' + show + fontStyleCodec, + textBaselineCodec, + textDecorationStyleCodec, + textLeadingDistributionCodec, + textOverflowCodec; +import 'primitives/color.dart' show colorCodec; +import 'primitives/font_weight.dart' show fontWeightCodec; +import 'primitives/locale.dart' show localeCodec; +import 'primitives/text_decoration.dart' show textDecorationCodec; +import 'shadows.dart' show shadowCodec; + +/// Codec for [TextStyle]. +/// +/// Supported fields are the JSON-safe constructor parameters: colors, +/// typography scalars, enum fields, [FontWeight], [ui.Locale], shadows, +/// [TextDecoration], font families, package, and overflow. +/// +/// Unsupported fields are intentionally omitted: +/// * `foreground` and `background` are `Paint?`, which is not JSON-safe. +/// * `debugLabel` is debug metadata and is excluded from [TextStyle] equality. +/// * `fontFeatures` and `fontVariations` are niche typography fields reserved +/// for a focused follow-up. +final textStyleCodec = Ack.object({ + 'inherit': Ack.boolean().withDefault(true), + 'color': colorCodec.nullable().optional(), + 'backgroundColor': colorCodec.nullable().optional(), + 'fontSize': Ack.number().nullable().optional(), + 'fontWeight': fontWeightCodec.nullable().optional(), + 'fontStyle': fontStyleCodec.nullable().optional(), + 'letterSpacing': Ack.number().nullable().optional(), + 'wordSpacing': Ack.number().nullable().optional(), + 'textBaseline': textBaselineCodec.nullable().optional(), + 'height': Ack.number().nullable().optional(), + 'leadingDistribution': textLeadingDistributionCodec.nullable().optional(), + 'locale': localeCodec.nullable().optional(), + 'shadows': Ack.list(shadowCodec).nullable().optional(), + 'decoration': textDecorationCodec.nullable().optional(), + 'decorationColor': colorCodec.nullable().optional(), + 'decorationStyle': textDecorationStyleCodec.nullable().optional(), + 'decorationThickness': Ack.number().nullable().optional(), + 'fontFamily': Ack.string().nullable().optional(), + 'fontFamilyFallback': Ack.list(Ack.string()).nullable().optional(), + 'package': Ack.string().nullable().optional(), + 'overflow': textOverflowCodec.nullable().optional(), +}).codec(decode: _decodeTextStyle, encode: _encodeTextStyle); + +TextStyle _decodeTextStyle(JsonMap data) { + return TextStyle( + inherit: data['inherit']! as bool, + color: data['color'] as Color?, + backgroundColor: data['backgroundColor'] as Color?, + fontSize: _readNullableDouble(data, 'fontSize'), + fontWeight: data['fontWeight'] as FontWeight?, + fontStyle: data['fontStyle'] as FontStyle?, + letterSpacing: _readNullableDouble(data, 'letterSpacing'), + wordSpacing: _readNullableDouble(data, 'wordSpacing'), + textBaseline: data['textBaseline'] as TextBaseline?, + height: _readNullableDouble(data, 'height'), + leadingDistribution: + data['leadingDistribution'] as TextLeadingDistribution?, + locale: data['locale'] as ui.Locale?, + shadows: _readNullableList(data, 'shadows'), + decoration: data['decoration'] as TextDecoration?, + decorationColor: data['decorationColor'] as Color?, + decorationStyle: data['decorationStyle'] as TextDecorationStyle?, + decorationThickness: _readNullableDouble(data, 'decorationThickness'), + fontFamily: data['fontFamily'] as String?, + fontFamilyFallback: _readNullableList(data, 'fontFamilyFallback'), + package: data['package'] as String?, + overflow: data['overflow'] as TextOverflow?, + ); +} + +JsonMap _encodeTextStyle(TextStyle value) { + final fontFamilyFields = _encodeFontFamilyFields(value); + + return { + 'inherit': value.inherit, + 'color': value.color, + 'backgroundColor': value.backgroundColor, + 'fontSize': value.fontSize, + 'fontWeight': value.fontWeight, + 'fontStyle': value.fontStyle, + 'letterSpacing': value.letterSpacing, + 'wordSpacing': value.wordSpacing, + 'textBaseline': value.textBaseline, + 'height': value.height, + 'leadingDistribution': value.leadingDistribution, + 'locale': value.locale, + 'shadows': value.shadows, + 'decoration': value.decoration, + 'decorationColor': value.decorationColor, + 'decorationStyle': value.decorationStyle, + 'decorationThickness': value.decorationThickness, + 'fontFamily': fontFamilyFields.family, + 'fontFamilyFallback': fontFamilyFields.fallback, + 'package': fontFamilyFields.packageName, + 'overflow': value.overflow, + }; +} + +double? _readNullableDouble(JsonMap map, String key) { + final value = map[key]; + if (value == null) return null; + + return (value as num).toDouble(); +} + +List? _readNullableList(JsonMap data, String key) { + final value = data[key]; + if (value == null) return null; + + return (value as List).cast().toList(); +} + +({String? family, List? fallback, String? packageName}) +_encodeFontFamilyFields(TextStyle value) { + final fontFamily = value.fontFamily; + final fontFamilyFallback = value.fontFamilyFallback; + final packageName = _inferPackageName(fontFamily, fontFamilyFallback); + if (packageName == null) { + return ( + family: fontFamily, + fallback: fontFamilyFallback, + packageName: null, + ); + } + + return ( + family: fontFamily == null + ? null + : _stripPackagePrefix(fontFamily, packageName), + fallback: fontFamilyFallback + ?.map((family) => _stripPackagePrefix(family, packageName)) + .toList(), + packageName: packageName, + ); +} + +String? _inferPackageName(String? fontFamily, List? fallback) { + final families = [ + if (fontFamily != null) fontFamily, + if (fallback != null) ...fallback, + ]; + if (families.isEmpty) return null; + + final packageName = _packageNameFromPrefixedFamily(families.first); + if (packageName == null) return null; + + for (final family in families.skip(1)) { + if (_packageNameFromPrefixedFamily(family) != packageName) return null; + } + + return packageName; +} + +String? _packageNameFromPrefixedFamily(String fontFamily) { + const packagesPrefix = 'packages/'; + if (!fontFamily.startsWith(packagesPrefix)) return null; + + final packageAndFamily = fontFamily.substring(packagesPrefix.length); + final separator = packageAndFamily.indexOf('/'); + if (separator <= 0 || separator == packageAndFamily.length - 1) return null; + + return packageAndFamily.substring(0, separator); +} + +String _stripPackagePrefix(String fontFamily, String packageName) { + final prefix = 'packages/$packageName/'; + if (!fontFamily.startsWith(prefix)) return fontFamily; + + return fontFamily.substring(prefix.length); +} diff --git a/packages/flutter_codec/test/primitives/font_weight_test.dart b/packages/flutter_codec/test/primitives/font_weight_test.dart new file mode 100644 index 00000000..a5c653a7 --- /dev/null +++ b/packages/flutter_codec/test/primitives/font_weight_test.dart @@ -0,0 +1,67 @@ +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('fontWeightCodec decode', () { + const weights = { + 'w100': FontWeight.w100, + 'w200': FontWeight.w200, + 'w300': FontWeight.w300, + 'w400': FontWeight.w400, + 'w500': FontWeight.w500, + 'w600': FontWeight.w600, + 'w700': FontWeight.w700, + 'w800': FontWeight.w800, + 'w900': FontWeight.w900, + }; + + weights.forEach((name, value) { + test('decodes "$name"', () { + expect(fontWeightCodec.parse(name), value); + }); + }); + + test('decodes conventional aliases', () { + expect(fontWeightCodec.parse('normal'), FontWeight.normal); + expect(fontWeightCodec.parse('bold'), FontWeight.bold); + }); + }); + + group('fontWeightCodec encode', () { + const weights = [ + (FontWeight.w100, 'w100'), + (FontWeight.w200, 'w200'), + (FontWeight.w300, 'w300'), + (FontWeight.w400, 'w400'), + (FontWeight.w500, 'w500'), + (FontWeight.w600, 'w600'), + (FontWeight.w700, 'w700'), + (FontWeight.w800, 'w800'), + (FontWeight.w900, 'w900'), + ]; + + for (final (value, name) in weights) { + test('encodes $value as "$name"', () { + final encoded = fontWeightCodec.encode(value); + expect(encoded, name); + expectJsonSafe(encoded); + }); + } + + test('canonicalizes conventional aliases', () { + expect(fontWeightCodec.encode(FontWeight.normal), 'w400'); + expect(fontWeightCodec.encode(FontWeight.bold), 'w700'); + }); + }); + + group('fontWeightCodec rejects invalid input', () { + for (final input in ['heavy', 400, null]) { + test('rejects $input', () { + expect(fontWeightCodec.safeParse(input).isFail, isTrue); + }); + } + }); +} diff --git a/packages/flutter_codec/test/primitives/locale_test.dart b/packages/flutter_codec/test/primitives/locale_test.dart new file mode 100644 index 00000000..390241af --- /dev/null +++ b/packages/flutter_codec/test/primitives/locale_test.dart @@ -0,0 +1,51 @@ +import 'dart:convert'; +import 'dart:ui'; + +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('localeCodec', () { + const cases = { + 'en': Locale('en'), + 'en-US': Locale('en', 'US'), + 'zh-Hans-CN': Locale.fromSubtags( + languageCode: 'zh', + scriptCode: 'Hans', + countryCode: 'CN', + ), + 'pt-BR': Locale('pt', 'BR'), + }; + + cases.forEach((tag, locale) { + test('round-trips "$tag"', () { + expect(localeCodec.parse(tag), locale); + + final encoded = localeCodec.encode(locale); + expect(encoded, tag); + expectJsonSafe(encoded); + }); + }); + }); + + group('localeCodec rejects invalid input', () { + for (final input in ['EN', 'en-us', '']) { + test('rejects "$input"', () { + expect(localeCodec.safeParse(input).isFail, isTrue); + }); + } + }); + + group('localeCodec JSON Schema', () { + test('BCP-47 subset pattern is reflected', () { + expect( + jsonEncode(localeCodec.toJsonSchema()), + contains( + r'"pattern":"^[a-z]{2,3}(?:-[A-Z][a-z]{3})?(?:-[A-Z]{2}|\\d{3})?$"', + ), + ); + }); + }); +} diff --git a/packages/flutter_codec/test/primitives/text_decoration_test.dart b/packages/flutter_codec/test/primitives/text_decoration_test.dart new file mode 100644 index 00000000..f6f0a9f9 --- /dev/null +++ b/packages/flutter_codec/test/primitives/text_decoration_test.dart @@ -0,0 +1,90 @@ +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('textDecorationCodec decode', () { + const atomic = { + 'none': TextDecoration.none, + 'underline': TextDecoration.underline, + 'overline': TextDecoration.overline, + 'lineThrough': TextDecoration.lineThrough, + }; + + atomic.forEach((name, value) { + test('decodes "$name"', () { + expect(textDecorationCodec.parse(name), value); + }); + }); + + test('decodes a combined list', () { + expect( + textDecorationCodec.parse(['underline', 'overline']), + TextDecoration.combine([ + TextDecoration.underline, + TextDecoration.overline, + ]), + ); + }); + + test('decodes an empty list as none', () { + expect(textDecorationCodec.parse([]), TextDecoration.none); + }); + + test('filters none out of combined lists', () { + expect( + textDecorationCodec.parse(['none', 'underline']), + TextDecoration.underline, + ); + }); + }); + + group('textDecorationCodec encode', () { + const atomic = [ + (TextDecoration.none, 'none'), + (TextDecoration.underline, 'underline'), + (TextDecoration.overline, 'overline'), + (TextDecoration.lineThrough, 'lineThrough'), + ]; + + for (final (value, name) in atomic) { + test('encodes $value as "$name"', () { + final encoded = textDecorationCodec.encode(value); + expect(encoded, name); + expectJsonSafe(encoded); + }); + } + + test('encodes a combined decoration as participating aliases', () { + final encoded = textDecorationCodec.encode( + TextDecoration.combine([ + TextDecoration.underline, + TextDecoration.overline, + ]), + ); + + expect(encoded, ['underline', 'overline']); + expectJsonSafe(encoded); + }); + + test('encodes atomic values as bare strings, not single-item lists', () { + expect(textDecorationCodec.encode(TextDecoration.underline), 'underline'); + expect(textDecorationCodec.encode(TextDecoration.none), 'none'); + }); + }); + + group('textDecorationCodec rejects invalid input', () { + test('rejects unknown strings', () { + expect(textDecorationCodec.safeParse('blink').isFail, isTrue); + }); + + test('rejects unknown list entries', () { + expect( + textDecorationCodec.safeParse(['underline', 'blink']).isFail, + isTrue, + ); + }); + }); +} diff --git a/packages/flutter_codec/test/text_style/text_style_test.dart b/packages/flutter_codec/test/text_style/text_style_test.dart new file mode 100644 index 00000000..50b5dd2a --- /dev/null +++ b/packages/flutter_codec/test/text_style/text_style_test.dart @@ -0,0 +1,181 @@ +import 'dart:convert'; +import 'dart:ui' as ui show Locale, Shadow; + +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('textStyleCodec decode', () { + test('decodes inherit-only input as the default TextStyle', () { + expect(textStyleCodec.parse({'inherit': true}), const TextStyle()); + }); + + test('decodes a full real-world TextStyle', () { + expect( + textStyleCodec.parse({ + 'inherit': true, + 'color': '#2196F3', + 'backgroundColor': '#FFFDE7', + 'fontSize': 18, + 'fontWeight': 'bold', + 'fontStyle': 'italic', + 'letterSpacing': 0.25, + 'wordSpacing': 1.5, + 'textBaseline': 'alphabetic', + 'height': 1.3, + 'leadingDistribution': 'even', + 'locale': 'en-US', + 'shadows': [ + { + 'color': '#55000000', + 'offset': {'x': 1, 'y': 2}, + 'blurRadius': 3, + }, + ], + 'decoration': ['underline', 'overline'], + 'decorationColor': '#FF0000', + 'decorationStyle': 'dashed', + 'decorationThickness': 2, + 'fontFamily': 'Inter', + 'fontFamilyFallback': ['Roboto', 'Arial'], + 'package': 'my_package', + 'overflow': 'ellipsis', + }), + TextStyle( + color: const Color(0xFF2196F3), + backgroundColor: const Color(0xFFFFFDE7), + fontSize: 18, + fontWeight: FontWeight.bold, + fontStyle: FontStyle.italic, + letterSpacing: 0.25, + wordSpacing: 1.5, + textBaseline: TextBaseline.alphabetic, + height: 1.3, + leadingDistribution: TextLeadingDistribution.even, + locale: const ui.Locale('en', 'US'), + shadows: const [ + ui.Shadow( + color: Color(0x55000000), + offset: Offset(1, 2), + blurRadius: 3, + ), + ], + decoration: TextDecoration.combine([ + TextDecoration.underline, + TextDecoration.overline, + ]), + decorationColor: const Color(0xFFFF0000), + decorationStyle: TextDecorationStyle.dashed, + decorationThickness: 2, + fontFamily: 'Inter', + fontFamilyFallback: const ['Roboto', 'Arial'], + package: 'my_package', + overflow: TextOverflow.ellipsis, + ), + ); + }); + }); + + group('textStyleCodec encode', () { + test('emits a full canonical map with explicit nulls for defaults', () { + final encoded = textStyleCodec.encode(const TextStyle()); + + expect(encoded, { + 'inherit': true, + 'color': null, + 'backgroundColor': null, + 'fontSize': null, + 'fontWeight': null, + 'fontStyle': null, + 'letterSpacing': null, + 'wordSpacing': null, + 'textBaseline': null, + 'height': null, + 'leadingDistribution': null, + 'locale': null, + 'shadows': null, + 'decoration': null, + 'decorationColor': null, + 'decorationStyle': null, + 'decorationThickness': null, + 'fontFamily': null, + 'fontFamilyFallback': null, + 'package': null, + 'overflow': null, + }); + expectJsonSafe(encoded); + }); + + test('round-trips a full TextStyle', () { + final original = TextStyle( + inherit: false, + color: const Color(0xFF2196F3), + backgroundColor: const Color(0xFFFFFDE7), + fontSize: 18, + fontWeight: FontWeight.bold, + fontStyle: FontStyle.italic, + letterSpacing: 0.25, + wordSpacing: 1.5, + textBaseline: TextBaseline.alphabetic, + height: 1.3, + leadingDistribution: TextLeadingDistribution.even, + locale: const ui.Locale('zh', 'CN'), + shadows: const [ + ui.Shadow( + color: Color(0x55000000), + offset: Offset(1, 2), + blurRadius: 3, + ), + ], + decoration: TextDecoration.combine([ + TextDecoration.underline, + TextDecoration.overline, + ]), + decorationColor: const Color(0xFFFF0000), + decorationStyle: TextDecorationStyle.dashed, + decorationThickness: 2, + fontFamily: 'Inter', + fontFamilyFallback: const ['Roboto', 'Arial'], + package: 'my_package', + overflow: TextOverflow.ellipsis, + ); + + final encoded = textStyleCodec.encode(original); + + expect(textStyleCodec.parse(encoded), original); + expectJsonSafe(encoded); + }); + }); + + group('textStyleCodec rejects invalid input', () { + const invalidCases = { + 'unknown keys': {'inherit': true, 'foo': 1}, + 'invalid fontWeight': {'fontWeight': 'heavy'}, + 'invalid decoration': {'decoration': 'blink'}, + 'invalid color': {'color': 'not-a-color'}, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(textStyleCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + + group('textStyleCodec JSON Schema', () { + test('dependent codec enums flow through composition', () { + final schema = jsonEncode(textStyleCodec.toJsonSchema()); + // textDecorationCodec emits its atomic aliases as an enum; the + // composed object lifts that enum into its property schema. + expect( + schema, + contains('"enum":["none","underline","overline","lineThrough"]'), + ); + // fontWeightCodec's enum branch surfaces the same way. + expect(schema, contains('"enum":["w100"')); + }); + }); +} From bb392b9ae255ca1101da2341fae64cac21194996 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 16:29:45 -0400 Subject: [PATCH 28/53] feat(flutter_codec): enhance codecs for Gradient, FontWeight, Locale, and TextDecoration with improved structure and tests --- packages/flutter_codec/lib/src/gradients.dart | 34 ++++--- .../lib/src/primitives/font_weight.dart | 89 ++++++++--------- .../lib/src/primitives/locale.dart | 38 +++---- .../lib/src/primitives/text_decoration.dart | 2 +- .../flutter_codec/lib/src/text_style.dart | 98 +++++++------------ .../test/gradients/gradients_test.dart | 30 +++--- .../test/primitives/locale_test.dart | 2 +- 7 files changed, 134 insertions(+), 159 deletions(-) diff --git a/packages/flutter_codec/lib/src/gradients.dart b/packages/flutter_codec/lib/src/gradients.dart index 326d1316..43c8f8c1 100644 --- a/packages/flutter_codec/lib/src/gradients.dart +++ b/packages/flutter_codec/lib/src/gradients.dart @@ -132,14 +132,26 @@ final sweepGradientCodec = }, ); -/// Codec for [Gradient], unioning the three concrete gradient codecs via the -/// `"type"` discriminator. Encoding dispatches by runtime type. -final gradientCodec = - Ack.anyOf([ - linearGradientCodec, - radialGradientCodec, - sweepGradientCodec, - ]).codec( - decode: (value) => value as Gradient, - encode: (value) => value, - ); +/// Codec for [Gradient], discriminated by a `"type"` key (`"linear"`, +/// `"radial"`, or `"sweep"`). Each branch is the corresponding concrete +/// codec, upcast to the union runtime type. The standalone codecs +/// ([linearGradientCodec], [radialGradientCodec], [sweepGradientCodec]) carry +/// the same `"type"` literal, so a value encoded through this union round-trips +/// through them and vice versa. +final gradientCodec = Ack.discriminated( + discriminatorKey: 'type', + schemas: { + 'linear': linearGradientCodec.codec( + decode: (value) => value, + encode: (value) => value as LinearGradient, + ), + 'radial': radialGradientCodec.codec( + decode: (value) => value, + encode: (value) => value as RadialGradient, + ), + 'sweep': sweepGradientCodec.codec( + decode: (value) => value, + encode: (value) => value as SweepGradient, + ), + }, +); diff --git a/packages/flutter_codec/lib/src/primitives/font_weight.dart b/packages/flutter_codec/lib/src/primitives/font_weight.dart index d188b894..aea7f4a2 100644 --- a/packages/flutter_codec/lib/src/primitives/font_weight.dart +++ b/packages/flutter_codec/lib/src/primitives/font_weight.dart @@ -2,56 +2,47 @@ import 'dart:ui' show FontWeight; import 'package:ack/ack.dart'; -/// Named [FontWeight] values encoded as canonical `wNNN` string aliases. -enum _FontWeight { w100, w200, w300, w400, w500, w600, w700, w800, w900 } +/// String aliases accepted for [FontWeight]. +/// +/// The first nine entries (`w100`..`w900`) are deliberately parallel to +/// [FontWeight.values] so encoding can map between the two by index. The +/// trailing `normal` and `bold` are accept-only aliases for `w400`/`w700` and +/// are never emitted on encode. +enum _FontWeight { + w100, + w200, + w300, + w400, + w500, + w600, + w700, + w800, + w900, + normal, + bold, +} /// Codec for [FontWeight]. /// -/// Accepts `"w100"` through `"w900"` plus the conventional aliases -/// `"normal"` and `"bold"`. Encoding canonicalizes aliases back to the -/// numeric `wNNN` form. -final fontWeightCodec = Ack.codec( - input: Ack.anyOf([ - Ack.literal('normal'), - Ack.literal('bold'), - Ack.enumCodec(_FontWeight.values), - ]), - decode: _decodeFontWeight, - encode: _encodeFontWeight, +/// Accepts `"w100"` through `"w900"` plus the conventional aliases `"normal"` +/// and `"bold"`. Encoding canonicalizes every value to the numeric `wNNN` +/// form, since `FontWeight.normal == FontWeight.w400` and +/// `FontWeight.bold == FontWeight.w700` (same const instances). +final fontWeightCodec = Ack.enumCodec(_FontWeight.values).codec( + decode: (value) => switch (value) { + _FontWeight.normal => FontWeight.normal, + _FontWeight.bold => FontWeight.bold, + _ => FontWeight.values[value.index], + }, + encode: (value) { + final index = FontWeight.values.indexOf(value); + if (index < 0) { + throw ArgumentError.value( + value, + 'value', + 'Expected a FontWeight from w100 through w900.', + ); + } + return _FontWeight.values[index]; + }, ); - -FontWeight _decodeFontWeight(Object value) { - if (value == 'normal') return FontWeight.normal; - if (value == 'bold') return FontWeight.bold; - - return switch (value as _FontWeight) { - _FontWeight.w100 => FontWeight.w100, - _FontWeight.w200 => FontWeight.w200, - _FontWeight.w300 => FontWeight.w300, - _FontWeight.w400 => FontWeight.w400, - _FontWeight.w500 => FontWeight.w500, - _FontWeight.w600 => FontWeight.w600, - _FontWeight.w700 => FontWeight.w700, - _FontWeight.w800 => FontWeight.w800, - _FontWeight.w900 => FontWeight.w900, - }; -} - -Object _encodeFontWeight(FontWeight value) { - return switch (value.value) { - 100 => _FontWeight.w100, - 200 => _FontWeight.w200, - 300 => _FontWeight.w300, - 400 => _FontWeight.w400, - 500 => _FontWeight.w500, - 600 => _FontWeight.w600, - 700 => _FontWeight.w700, - 800 => _FontWeight.w800, - 900 => _FontWeight.w900, - _ => throw ArgumentError.value( - value, - 'value', - 'Expected a FontWeight value from w100 through w900.', - ), - }; -} diff --git a/packages/flutter_codec/lib/src/primitives/locale.dart b/packages/flutter_codec/lib/src/primitives/locale.dart index ed453256..5df9bd99 100644 --- a/packages/flutter_codec/lib/src/primitives/locale.dart +++ b/packages/flutter_codec/lib/src/primitives/locale.dart @@ -2,7 +2,13 @@ import 'dart:ui' show Locale; import 'package:ack/ack.dart'; -const _localePattern = r'^[a-z]{2,3}(?:-[A-Z][a-z]{3})?(?:-[A-Z]{2}|\d{3})?$'; +/// BCP-47 subset: required language (2-3 lowercase), optional script +/// (4-character title case), optional region (2 uppercase letters or 3 digits). +/// Capture groups extract each subtag for [_decodeLocale]; the unanchored +/// pattern matters only for validation, so the groups don't affect matching. +const _localePattern = + r'^([a-z]{2,3})(?:-([A-Z][a-z]{3}))?(?:-([A-Z]{2}|\d{3}))?$'; +final _localeRegex = RegExp(_localePattern); /// Codec for [Locale] using BCP-47 language tags. /// @@ -11,27 +17,13 @@ const _localePattern = r'^[a-z]{2,3}(?:-[A-Z][a-z]{3})?(?:-[A-Z]{2}|\d{3})?$'; /// [Locale.toLanguageTag]. final localeCodec = Ack.codec( input: Ack.string().matches(_localePattern), - decode: _decodeLocale, + decode: (value) { + final match = _localeRegex.firstMatch(value)!; + return Locale.fromSubtags( + languageCode: match.group(1)!, + scriptCode: match.group(2), + countryCode: match.group(3), + ); + }, encode: (value) => value.toLanguageTag(), ); - -Locale _decodeLocale(String value) { - final parts = value.split('-'); - final languageCode = parts.first; - String? scriptCode; - String? countryCode; - - for (final part in parts.skip(1)) { - if (part.length == 4) { - scriptCode = part; - } else { - countryCode = part; - } - } - - return Locale.fromSubtags( - languageCode: languageCode, - scriptCode: scriptCode, - countryCode: countryCode, - ); -} diff --git a/packages/flutter_codec/lib/src/primitives/text_decoration.dart b/packages/flutter_codec/lib/src/primitives/text_decoration.dart index 1277d185..c03c15de 100644 --- a/packages/flutter_codec/lib/src/primitives/text_decoration.dart +++ b/packages/flutter_codec/lib/src/primitives/text_decoration.dart @@ -23,8 +23,8 @@ TextDecoration _decodeTextDecoration(Object value) { final decorations = (value as List) .cast<_TextDecoration>() + .where((atomic) => atomic != _TextDecoration.none) .map(_atomicToTextDecoration) - .where((decoration) => decoration != TextDecoration.none) .toList(); if (decorations.isEmpty) return TextDecoration.none; diff --git a/packages/flutter_codec/lib/src/text_style.dart b/packages/flutter_codec/lib/src/text_style.dart index a1280d30..243b7512 100644 --- a/packages/flutter_codec/lib/src/text_style.dart +++ b/packages/flutter_codec/lib/src/text_style.dart @@ -116,75 +116,53 @@ JsonMap _encodeTextStyle(TextStyle value) { }; } -double? _readNullableDouble(JsonMap map, String key) { - final value = map[key]; - if (value == null) return null; +double? _readNullableDouble(JsonMap map, String key) => + (map[key] as num?)?.toDouble(); - return (value as num).toDouble(); -} - -List? _readNullableList(JsonMap data, String key) { - final value = data[key]; - if (value == null) return null; - - return (value as List).cast().toList(); -} +List? _readNullableList(JsonMap data, String key) => + (data[key] as List?)?.cast().toList(); +/// Unfolds Flutter's internal `packages//` storage back to the +/// user-supplied `(fontFamily, fontFamilyFallback, package)` triple, when all +/// referenced families share the same package prefix. Falls back to the +/// stored (prefixed) form if the prefix is missing or inconsistent. ({String? family, List? fallback, String? packageName}) _encodeFontFamilyFields(TextStyle value) { - final fontFamily = value.fontFamily; - final fontFamilyFallback = value.fontFamilyFallback; - final packageName = _inferPackageName(fontFamily, fontFamilyFallback); - if (packageName == null) { - return ( - family: fontFamily, - fallback: fontFamilyFallback, - packageName: null, - ); + final family = value.fontFamily; + final fallback = value.fontFamilyFallback; + final pkg = _sharedPackagePrefix([if (family != null) family, ...?fallback]); + if (pkg == null) { + return (family: family, fallback: fallback, packageName: null); } + final prefix = 'packages/$pkg/'; + String strip(String f) => + f.startsWith(prefix) ? f.substring(prefix.length) : f; return ( - family: fontFamily == null - ? null - : _stripPackagePrefix(fontFamily, packageName), - fallback: fontFamilyFallback - ?.map((family) => _stripPackagePrefix(family, packageName)) - .toList(), - packageName: packageName, + family: family == null ? null : strip(family), + fallback: fallback?.map(strip).toList(), + packageName: pkg, ); } -String? _inferPackageName(String? fontFamily, List? fallback) { - final families = [ - if (fontFamily != null) fontFamily, - if (fallback != null) ...fallback, - ]; - if (families.isEmpty) return null; - - final packageName = _packageNameFromPrefixedFamily(families.first); - if (packageName == null) return null; - - for (final family in families.skip(1)) { - if (_packageNameFromPrefixedFamily(family) != packageName) return null; +/// Returns the package name shared by every `packages//` entry +/// in [families], or null if any entry lacks the prefix or disagrees. +String? _sharedPackagePrefix(List families) { + const prefix = 'packages/'; + String? shared; + for (final family in families) { + if (!family.startsWith(prefix)) return null; + + final rest = family.substring(prefix.length); + final separator = rest.indexOf('/'); + if (separator <= 0 || separator == rest.length - 1) return null; + + final name = rest.substring(0, separator); + if (shared == null) { + shared = name; + } else if (shared != name) { + return null; + } } - - return packageName; -} - -String? _packageNameFromPrefixedFamily(String fontFamily) { - const packagesPrefix = 'packages/'; - if (!fontFamily.startsWith(packagesPrefix)) return null; - - final packageAndFamily = fontFamily.substring(packagesPrefix.length); - final separator = packageAndFamily.indexOf('/'); - if (separator <= 0 || separator == packageAndFamily.length - 1) return null; - - return packageAndFamily.substring(0, separator); -} - -String _stripPackagePrefix(String fontFamily, String packageName) { - final prefix = 'packages/$packageName/'; - if (!fontFamily.startsWith(prefix)) return fontFamily; - - return fontFamily.substring(prefix.length); + return shared; } diff --git a/packages/flutter_codec/test/gradients/gradients_test.dart b/packages/flutter_codec/test/gradients/gradients_test.dart index 73f2044a..5192f94d 100644 --- a/packages/flutter_codec/test/gradients/gradients_test.dart +++ b/packages/flutter_codec/test/gradients/gradients_test.dart @@ -42,8 +42,6 @@ void main() { group('linearGradientCodec encode', () { test('emits a full canonical object with discriminator', () { - // .codec() emits optional null fields explicitly (no null-stripping, - // unlike .model()). final encoded = linearGradientCodec.encode( const LinearGradient(colors: _redBlue), ); @@ -238,19 +236,22 @@ void main() { ); }); + test('rejects a missing discriminator', () { + expect(gradientCodec.safeParse({'colors': _redBlueHex}).isFail, isTrue); + }); + test('encode dispatches by runtime type', () { - final linear = gradientCodec.encode( - const LinearGradient(colors: _redBlue), - ); - expect((linear as Map)['type'], 'linear'); + final linear = + gradientCodec.encode(const LinearGradient(colors: _redBlue)) as Map; + expect(linear['type'], 'linear'); - final radial = gradientCodec.encode( - const RadialGradient(colors: _redBlue), - ); - expect((radial as Map)['type'], 'radial'); + final radial = + gradientCodec.encode(const RadialGradient(colors: _redBlue)) as Map; + expect(radial['type'], 'radial'); - final sweep = gradientCodec.encode(const SweepGradient(colors: _redBlue)); - expect((sweep as Map)['type'], 'sweep'); + final sweep = + gradientCodec.encode(const SweepGradient(colors: _redBlue)) as Map; + expect(sweep['type'], 'sweep'); expectJsonSafe(linear); expectJsonSafe(radial); @@ -259,9 +260,10 @@ void main() { }); group('gradientCodec JSON Schema', () { - test('discriminators and numeric constraints flow through', () { + test('discriminator branches and numeric constraints flow through', () { final schema = jsonEncode(gradientCodec.toJsonSchema()); - // Ack.literal emits "const":"" for each branch's type field. + // Each branch's Ack.literal still emits "const":"" in the inner + // object schema. expect(schema, contains('"const":"linear"')); expect(schema, contains('"const":"radial"')); expect(schema, contains('"const":"sweep"')); diff --git a/packages/flutter_codec/test/primitives/locale_test.dart b/packages/flutter_codec/test/primitives/locale_test.dart index 390241af..3e89befc 100644 --- a/packages/flutter_codec/test/primitives/locale_test.dart +++ b/packages/flutter_codec/test/primitives/locale_test.dart @@ -43,7 +43,7 @@ void main() { expect( jsonEncode(localeCodec.toJsonSchema()), contains( - r'"pattern":"^[a-z]{2,3}(?:-[A-Z][a-z]{3})?(?:-[A-Z]{2}|\\d{3})?$"', + r'"pattern":"^([a-z]{2,3})(?:-([A-Z][a-z]{3}))?(?:-([A-Z]{2}|\\d{3}))?$"', ), ); }); From 794668b0a110de3811c742724cc51416035f8726 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 16:43:15 -0400 Subject: [PATCH 29/53] feat(json_readers): introduce utility functions for reading JSON fields and refactor codecs to use them --- packages/flutter_codec/lib/src/borders.dart | 24 ++--- packages/flutter_codec/lib/src/gradients.dart | 42 +++----- .../flutter_codec/lib/src/json_readers.dart | 34 +++++++ packages/flutter_codec/lib/src/numbers.dart | 8 -- .../lib/src/primitives/alignment.dart | 2 +- .../lib/src/primitives/border_radius.dart | 17 ++-- .../lib/src/primitives/edge_insets.dart | 2 +- .../lib/src/primitives/offset.dart | 2 +- .../lib/src/primitives/radius.dart | 2 +- packages/flutter_codec/lib/src/shadows.dart | 12 +-- .../flutter_codec/lib/src/text_style.dart | 56 +++++------ .../flutter_codec/test/json_readers_test.dart | 96 +++++++++++++++++++ 12 files changed, 204 insertions(+), 93 deletions(-) create mode 100644 packages/flutter_codec/lib/src/json_readers.dart delete mode 100644 packages/flutter_codec/lib/src/numbers.dart create mode 100644 packages/flutter_codec/test/json_readers_test.dart diff --git a/packages/flutter_codec/lib/src/borders.dart b/packages/flutter_codec/lib/src/borders.dart index fefd7118..f281d5c0 100644 --- a/packages/flutter_codec/lib/src/borders.dart +++ b/packages/flutter_codec/lib/src/borders.dart @@ -3,7 +3,7 @@ import 'package:flutter/painting.dart' show Border, BorderDirectional, BorderSide, BorderStyle, BoxBorder, Color; import 'enums.dart' show borderStyleCodec; -import 'numbers.dart'; +import 'json_readers.dart'; import 'primitives/color.dart' show colorCodec; /// Named [BorderSide.strokeAlign] offsets, encoded as string aliases. @@ -71,10 +71,10 @@ BorderSide _decodeBorderSide(Object value) { final map = value as JsonMap; return BorderSide( - color: map['color']! as Color, + color: readValue(map, 'color'), width: readDouble(map, 'width'), - style: map['style']! as BorderStyle, - strokeAlign: map['strokeAlign']! as double, + style: readValue(map, 'style'), + strokeAlign: readValue(map, 'strokeAlign'), ); } @@ -121,10 +121,10 @@ Border _decodeBorder(Object value) { final map = value as JsonMap; return Border( - top: map['top']! as BorderSide, - right: map['right']! as BorderSide, - bottom: map['bottom']! as BorderSide, - left: map['left']! as BorderSide, + top: readValue(map, 'top'), + right: readValue(map, 'right'), + bottom: readValue(map, 'bottom'), + left: readValue(map, 'left'), ); } @@ -155,10 +155,10 @@ final borderDirectionalCodec = 'bottom': borderSideCodec.withDefault(BorderSide.none), }).codec( decode: (data) => BorderDirectional( - top: data['top']! as BorderSide, - start: data['start']! as BorderSide, - end: data['end']! as BorderSide, - bottom: data['bottom']! as BorderSide, + top: readValue(data, 'top'), + start: readValue(data, 'start'), + end: readValue(data, 'end'), + bottom: readValue(data, 'bottom'), ), encode: (value) => { 'top': value.top, diff --git a/packages/flutter_codec/lib/src/gradients.dart b/packages/flutter_codec/lib/src/gradients.dart index 43c8f8c1..58221c57 100644 --- a/packages/flutter_codec/lib/src/gradients.dart +++ b/packages/flutter_codec/lib/src/gradients.dart @@ -13,22 +13,10 @@ import 'package:flutter/painting.dart' TileMode; import 'enums.dart' show tileModeCodec; -import 'numbers.dart'; +import 'json_readers.dart'; import 'primitives/alignment.dart' show alignmentGeometryCodec; import 'primitives/color.dart' show colorCodec; -/// Reads the `colors` field, validated by the schema as a `List`. -List _readColors(JsonMap data) => - (data['colors']! as List).cast(); - -/// Reads the optional `stops` field as `List?`. -List? _readStops(JsonMap data) { - final raw = data['stops']; - if (raw == null) return null; - - return (raw as List).map((s) => (s as num).toDouble()).toList(); -} - /// Codec for [LinearGradient]. Tagged with `"type": "linear"`. /// /// `colors` is required and must contain at least two entries. `stops`, when @@ -45,11 +33,11 @@ final linearGradientCodec = 'tileMode': tileModeCodec.withDefault(TileMode.clamp), }).codec( decode: (data) => LinearGradient( - begin: data['begin']! as AlignmentGeometry, - end: data['end']! as AlignmentGeometry, - colors: _readColors(data), - stops: _readStops(data), - tileMode: data['tileMode']! as TileMode, + begin: readValue(data, 'begin'), + end: readValue(data, 'end'), + colors: readList(data, 'colors'), + stops: readNullableDoubleList(data, 'stops'), + tileMode: readValue(data, 'tileMode'), ), encode: (value) => { 'type': 'linear', @@ -78,12 +66,12 @@ final radialGradientCodec = 'focalRadius': Ack.number().min(0).withDefault(0.0), }).codec( decode: (data) => RadialGradient( - center: data['center']! as AlignmentGeometry, + center: readValue(data, 'center'), radius: readDouble(data, 'radius'), - colors: _readColors(data), - stops: _readStops(data), - tileMode: data['tileMode']! as TileMode, - focal: data['focal'] as AlignmentGeometry?, + colors: readList(data, 'colors'), + stops: readNullableDoubleList(data, 'stops'), + tileMode: readValue(data, 'tileMode'), + focal: readNullableValue(data, 'focal'), focalRadius: readDouble(data, 'focalRadius'), ), encode: (value) => { @@ -114,12 +102,12 @@ final sweepGradientCodec = 'tileMode': tileModeCodec.withDefault(TileMode.clamp), }).codec( decode: (data) => SweepGradient( - center: data['center']! as AlignmentGeometry, + center: readValue(data, 'center'), startAngle: readDouble(data, 'startAngle'), endAngle: readDouble(data, 'endAngle'), - colors: _readColors(data), - stops: _readStops(data), - tileMode: data['tileMode']! as TileMode, + colors: readList(data, 'colors'), + stops: readNullableDoubleList(data, 'stops'), + tileMode: readValue(data, 'tileMode'), ), encode: (value) => { 'type': 'sweep', diff --git a/packages/flutter_codec/lib/src/json_readers.dart b/packages/flutter_codec/lib/src/json_readers.dart new file mode 100644 index 00000000..30ae3d8d --- /dev/null +++ b/packages/flutter_codec/lib/src/json_readers.dart @@ -0,0 +1,34 @@ +import 'package:ack/ack.dart'; + +/// Reads the required field [key] from a decoded [map] as [T]. +T readValue(JsonMap map, String key) => map[key]! as T; + +/// Reads the optional field [key] from a decoded [map] as [T]. +T? readNullableValue(JsonMap map, String key) => map[key] as T?; + +/// Reads the required numeric field [key] from a decoded [map] as a `double`. +/// +/// The schema has already validated the field, so the value is present and a +/// `num`; this centralizes the cast and `toDouble` conversion shared by +/// object-shaped codec decoders. +double readDouble(JsonMap map, String key) => (map[key]! as num).toDouble(); + +/// Reads the optional numeric field [key] from a decoded [map] as a `double`. +double? readNullableDouble(JsonMap map, String key) => + (map[key] as num?)?.toDouble(); + +/// Reads the required list field [key] from a decoded [map] as `List`. +List readList(JsonMap map, String key) => + (map[key]! as List).cast().toList(); + +/// Reads the optional list field [key] from a decoded [map] as `List`. +List? readNullableList(JsonMap map, String key) => + (map[key] as List?)?.cast().toList(); + +/// Reads the optional numeric list field [key] as `List`. +List? readNullableDoubleList(JsonMap map, String key) { + final raw = map[key]; + if (raw == null) return null; + + return (raw as List).map((value) => (value as num).toDouble()).toList(); +} diff --git a/packages/flutter_codec/lib/src/numbers.dart b/packages/flutter_codec/lib/src/numbers.dart deleted file mode 100644 index 4d4fe1f6..00000000 --- a/packages/flutter_codec/lib/src/numbers.dart +++ /dev/null @@ -1,8 +0,0 @@ -import 'package:ack/ack.dart'; - -/// Reads the required numeric field [key] from a decoded [map] as a `double`. -/// -/// The schema has already validated the field, so the value is present and a -/// `num`; this just centralises the `as num` cast and `toDouble` conversion -/// shared by the object-shaped codec decoders. -double readDouble(JsonMap map, String key) => (map[key]! as num).toDouble(); diff --git a/packages/flutter_codec/lib/src/primitives/alignment.dart b/packages/flutter_codec/lib/src/primitives/alignment.dart index fcb53a76..fa68e185 100644 --- a/packages/flutter_codec/lib/src/primitives/alignment.dart +++ b/packages/flutter_codec/lib/src/primitives/alignment.dart @@ -2,7 +2,7 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show Alignment, AlignmentDirectional, AlignmentGeometry; -import '../numbers.dart'; +import '../json_readers.dart'; /// Named [Alignment] constants, encoded as string aliases. enum _Alignment { diff --git a/packages/flutter_codec/lib/src/primitives/border_radius.dart b/packages/flutter_codec/lib/src/primitives/border_radius.dart index 38d2d833..63f28bc2 100644 --- a/packages/flutter_codec/lib/src/primitives/border_radius.dart +++ b/packages/flutter_codec/lib/src/primitives/border_radius.dart @@ -2,6 +2,7 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show BorderRadius, BorderRadiusDirectional, BorderRadiusGeometry, Radius; +import '../json_readers.dart'; import 'radius.dart' show radiusCodec; /// Codec for [BorderRadius]. A single radius (a number or `{x,y}`) sets all four @@ -27,10 +28,10 @@ BorderRadius _decodeBorderRadius(Object value) { final map = value as JsonMap; return BorderRadius.only( - topLeft: map['topLeft']! as Radius, - topRight: map['topRight']! as Radius, - bottomLeft: map['bottomLeft']! as Radius, - bottomRight: map['bottomRight']! as Radius, + topLeft: readValue(map, 'topLeft'), + topRight: readValue(map, 'topRight'), + bottomLeft: readValue(map, 'bottomLeft'), + bottomRight: readValue(map, 'bottomRight'), ); } @@ -62,10 +63,10 @@ final borderRadiusDirectionalCodec = 'bottomEnd': radiusCodec.withDefault(Radius.zero), }).codec( decode: (data) => BorderRadiusDirectional.only( - topStart: data['topStart']! as Radius, - topEnd: data['topEnd']! as Radius, - bottomStart: data['bottomStart']! as Radius, - bottomEnd: data['bottomEnd']! as Radius, + topStart: readValue(data, 'topStart'), + topEnd: readValue(data, 'topEnd'), + bottomStart: readValue(data, 'bottomStart'), + bottomEnd: readValue(data, 'bottomEnd'), ), encode: (value) => { 'topStart': value.topStart, diff --git a/packages/flutter_codec/lib/src/primitives/edge_insets.dart b/packages/flutter_codec/lib/src/primitives/edge_insets.dart index 35e7ef42..2070647e 100644 --- a/packages/flutter_codec/lib/src/primitives/edge_insets.dart +++ b/packages/flutter_codec/lib/src/primitives/edge_insets.dart @@ -2,7 +2,7 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show EdgeInsets, EdgeInsetsDirectional, EdgeInsetsGeometry; -import '../numbers.dart'; +import '../json_readers.dart'; /// Codec for [EdgeInsets]. A bare number sets all four sides; an object /// `{"left": ..., "top": ..., "right": ..., "bottom": ...}` (each side optional, diff --git a/packages/flutter_codec/lib/src/primitives/offset.dart b/packages/flutter_codec/lib/src/primitives/offset.dart index de75f8f5..793dc1ab 100644 --- a/packages/flutter_codec/lib/src/primitives/offset.dart +++ b/packages/flutter_codec/lib/src/primitives/offset.dart @@ -1,7 +1,7 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show Offset; -import '../numbers.dart'; +import '../json_readers.dart'; /// Codec for [Offset], represented as `{"x": ..., "y": ...}`. final offsetCodec = Ack.object({'x': Ack.number(), 'y': Ack.number()}) diff --git a/packages/flutter_codec/lib/src/primitives/radius.dart b/packages/flutter_codec/lib/src/primitives/radius.dart index 95d66b4f..2ed4c7d3 100644 --- a/packages/flutter_codec/lib/src/primitives/radius.dart +++ b/packages/flutter_codec/lib/src/primitives/radius.dart @@ -1,7 +1,7 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show Radius; -import '../numbers.dart'; +import '../json_readers.dart'; /// Codec for [Radius]. A single non-negative number is a circular radius; /// `{"x": ..., "y": ...}` is elliptical. Circular radii encode back to a number. diff --git a/packages/flutter_codec/lib/src/shadows.dart b/packages/flutter_codec/lib/src/shadows.dart index 673624f3..6c845fea 100644 --- a/packages/flutter_codec/lib/src/shadows.dart +++ b/packages/flutter_codec/lib/src/shadows.dart @@ -4,7 +4,7 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show BlurStyle, BoxShadow, Color, Offset; import 'enums.dart' show blurStyleCodec; -import 'numbers.dart'; +import 'json_readers.dart'; import 'primitives/color.dart' show colorCodec; import 'primitives/offset.dart' show offsetCodec; @@ -18,8 +18,8 @@ final shadowCodec = 'blurRadius': Ack.number().min(0).withDefault(0.0), }).codec( decode: (data) => ui.Shadow( - color: data['color']! as Color, - offset: data['offset']! as Offset, + color: readValue(data, 'color'), + offset: readValue(data, 'offset'), blurRadius: readDouble(data, 'blurRadius'), ), encode: (value) => { @@ -43,11 +43,11 @@ final boxShadowCodec = 'blurStyle': blurStyleCodec.withDefault(BlurStyle.normal), }).codec( decode: (data) => BoxShadow( - color: data['color']! as Color, - offset: data['offset']! as Offset, + color: readValue(data, 'color'), + offset: readValue(data, 'offset'), blurRadius: readDouble(data, 'blurRadius'), spreadRadius: readDouble(data, 'spreadRadius'), - blurStyle: data['blurStyle']! as BlurStyle, + blurStyle: readValue(data, 'blurStyle'), ), encode: (value) => { 'color': value.color, diff --git a/packages/flutter_codec/lib/src/text_style.dart b/packages/flutter_codec/lib/src/text_style.dart index 243b7512..5f340801 100644 --- a/packages/flutter_codec/lib/src/text_style.dart +++ b/packages/flutter_codec/lib/src/text_style.dart @@ -20,6 +20,7 @@ import 'enums.dart' textDecorationStyleCodec, textLeadingDistributionCodec, textOverflowCodec; +import 'json_readers.dart'; import 'primitives/color.dart' show colorCodec; import 'primitives/font_weight.dart' show fontWeightCodec; import 'primitives/locale.dart' show localeCodec; @@ -63,28 +64,33 @@ final textStyleCodec = Ack.object({ TextStyle _decodeTextStyle(JsonMap data) { return TextStyle( - inherit: data['inherit']! as bool, - color: data['color'] as Color?, - backgroundColor: data['backgroundColor'] as Color?, - fontSize: _readNullableDouble(data, 'fontSize'), - fontWeight: data['fontWeight'] as FontWeight?, - fontStyle: data['fontStyle'] as FontStyle?, - letterSpacing: _readNullableDouble(data, 'letterSpacing'), - wordSpacing: _readNullableDouble(data, 'wordSpacing'), - textBaseline: data['textBaseline'] as TextBaseline?, - height: _readNullableDouble(data, 'height'), - leadingDistribution: - data['leadingDistribution'] as TextLeadingDistribution?, - locale: data['locale'] as ui.Locale?, - shadows: _readNullableList(data, 'shadows'), - decoration: data['decoration'] as TextDecoration?, - decorationColor: data['decorationColor'] as Color?, - decorationStyle: data['decorationStyle'] as TextDecorationStyle?, - decorationThickness: _readNullableDouble(data, 'decorationThickness'), - fontFamily: data['fontFamily'] as String?, - fontFamilyFallback: _readNullableList(data, 'fontFamilyFallback'), - package: data['package'] as String?, - overflow: data['overflow'] as TextOverflow?, + inherit: readValue(data, 'inherit'), + color: readNullableValue(data, 'color'), + backgroundColor: readNullableValue(data, 'backgroundColor'), + fontSize: readNullableDouble(data, 'fontSize'), + fontWeight: readNullableValue(data, 'fontWeight'), + fontStyle: readNullableValue(data, 'fontStyle'), + letterSpacing: readNullableDouble(data, 'letterSpacing'), + wordSpacing: readNullableDouble(data, 'wordSpacing'), + textBaseline: readNullableValue(data, 'textBaseline'), + height: readNullableDouble(data, 'height'), + leadingDistribution: readNullableValue( + data, + 'leadingDistribution', + ), + locale: readNullableValue(data, 'locale'), + shadows: readNullableList(data, 'shadows'), + decoration: readNullableValue(data, 'decoration'), + decorationColor: readNullableValue(data, 'decorationColor'), + decorationStyle: readNullableValue( + data, + 'decorationStyle', + ), + decorationThickness: readNullableDouble(data, 'decorationThickness'), + fontFamily: readNullableValue(data, 'fontFamily'), + fontFamilyFallback: readNullableList(data, 'fontFamilyFallback'), + package: readNullableValue(data, 'package'), + overflow: readNullableValue(data, 'overflow'), ); } @@ -116,12 +122,6 @@ JsonMap _encodeTextStyle(TextStyle value) { }; } -double? _readNullableDouble(JsonMap map, String key) => - (map[key] as num?)?.toDouble(); - -List? _readNullableList(JsonMap data, String key) => - (data[key] as List?)?.cast().toList(); - /// Unfolds Flutter's internal `packages//` storage back to the /// user-supplied `(fontFamily, fontFamilyFallback, package)` triple, when all /// referenced families share the same package prefix. Falls back to the diff --git a/packages/flutter_codec/test/json_readers_test.dart b/packages/flutter_codec/test/json_readers_test.dart new file mode 100644 index 00000000..ff6ea711 --- /dev/null +++ b/packages/flutter_codec/test/json_readers_test.dart @@ -0,0 +1,96 @@ +import 'package:flutter_codec/src/json_readers.dart'; +import 'package:flutter_test/flutter_test.dart'; + +void main() { + group('readValue', () { + test('reads required typed fields', () { + final map = {'value': 'text'}; + + expect(readValue(map, 'value'), 'text'); + }); + }); + + group('readNullableValue', () { + test('returns null for missing or explicit null fields', () { + final map = {'explicitNull': null}; + + expect(readNullableValue(map, 'missing'), isNull); + expect(readNullableValue(map, 'explicitNull'), isNull); + }); + + test('reads present typed fields', () { + final map = {'value': 'text'}; + + expect(readNullableValue(map, 'value'), 'text'); + }); + }); + + group('readDouble', () { + test('reads numeric fields as doubles', () { + final map = {'integer': 2, 'double': 2.5}; + + expect(readDouble(map, 'integer'), 2.0); + expect(readDouble(map, 'double'), 2.5); + }); + }); + + group('readNullableDouble', () { + test('returns null for missing or explicit null fields', () { + final map = {'explicitNull': null}; + + expect(readNullableDouble(map, 'missing'), isNull); + expect(readNullableDouble(map, 'explicitNull'), isNull); + }); + + test('reads present numeric fields as doubles', () { + final map = {'integer': 3, 'double': 3.5}; + + expect(readNullableDouble(map, 'integer'), 3.0); + expect(readNullableDouble(map, 'double'), 3.5); + }); + }); + + group('readList', () { + test('reads typed list fields', () { + final map = { + 'values': ['a', 'b'], + }; + + expect(readList(map, 'values'), ['a', 'b']); + }); + }); + + group('readNullableList', () { + test('returns null for missing or explicit null fields', () { + final map = {'explicitNull': null}; + + expect(readNullableList(map, 'missing'), isNull); + expect(readNullableList(map, 'explicitNull'), isNull); + }); + + test('reads typed list fields', () { + final map = { + 'values': ['a', 'b'], + }; + + expect(readNullableList(map, 'values'), ['a', 'b']); + }); + }); + + group('readNullableDoubleList', () { + test('returns null for missing or explicit null fields', () { + final map = {'explicitNull': null}; + + expect(readNullableDoubleList(map, 'missing'), isNull); + expect(readNullableDoubleList(map, 'explicitNull'), isNull); + }); + + test('reads numeric list fields as doubles', () { + final map = { + 'values': [1, 2.5], + }; + + expect(readNullableDoubleList(map, 'values'), [1.0, 2.5]); + }); + }); +} From 62629270526a7826069a8ff1e1f829515f02b996 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 16:59:25 -0400 Subject: [PATCH 30/53] feat(flutter_codec): add BoxDecoration codec Composes the existing Color, BoxBorder, BorderRadiusGeometry, BoxShadow, Gradient, BlendMode, and BoxShape codecs for BoxDecoration while intentionally deferring DecorationImage support. The image field decodes only missing/null values and encodes as explicit null until the ImageProvider work lands. --- packages/flutter_codec/README.md | 8 +- packages/flutter_codec/lib/flutter_codec.dart | 1 + .../flutter_codec/lib/src/box_decoration.dart | 78 ++++++++ .../box_decoration/box_decoration_test.dart | 188 ++++++++++++++++++ 4 files changed, 273 insertions(+), 2 deletions(-) create mode 100644 packages/flutter_codec/lib/src/box_decoration.dart create mode 100644 packages/flutter_codec/test/box_decoration/box_decoration_test.dart diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index 062c931c..64d41630 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -4,5 +4,9 @@ Flutter value codecs built on ACK schemas. Includes enum codecs and value codecs for `Color`, `Offset`, `Radius`, `Alignment` / `AlignmentDirectional` / `AlignmentGeometry`, and -`EdgeInsets` / `EdgeInsetsDirectional` / `EdgeInsetsGeometry`, plus the composite -`BorderSide` codec (and its `strokeAlign` codec) that reuse them. +`EdgeInsets` / `EdgeInsetsDirectional` / `EdgeInsetsGeometry`, plus composite +painting codecs for borders, shadows, gradients, `TextStyle`, and +`BoxDecoration`. + +`BoxDecoration.image` is currently deferred: decode accepts only missing or +`null` image values, and encode emits `"image": null`. diff --git a/packages/flutter_codec/lib/flutter_codec.dart b/packages/flutter_codec/lib/flutter_codec.dart index 9826a51d..f32e0523 100644 --- a/packages/flutter_codec/lib/flutter_codec.dart +++ b/packages/flutter_codec/lib/flutter_codec.dart @@ -2,6 +2,7 @@ library; export 'src/borders.dart'; +export 'src/box_decoration.dart'; export 'src/enums.dart'; export 'src/gradients.dart'; export 'src/primitives.dart'; diff --git a/packages/flutter_codec/lib/src/box_decoration.dart b/packages/flutter_codec/lib/src/box_decoration.dart new file mode 100644 index 00000000..0551da1e --- /dev/null +++ b/packages/flutter_codec/lib/src/box_decoration.dart @@ -0,0 +1,78 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show + BlendMode, + BorderRadiusGeometry, + BoxBorder, + BoxDecoration, + BoxShadow, + BoxShape, + Color, + Gradient; + +import 'borders.dart' show boxBorderCodec; +import 'enums.dart' show blendModeCodec, boxShapeCodec; +import 'gradients.dart' show gradientCodec; +import 'json_readers.dart'; +import 'primitives/border_radius.dart' show borderRadiusGeometryCodec; +import 'primitives/color.dart' show colorCodec; +import 'shadows.dart' show boxShadowCodec; + +const _unsupportedDecorationImageMessage = + 'DecorationImage is not yet supported by boxDecorationCodec.'; + +/// Codec for [BoxDecoration]. +/// +/// Supports the JSON-safe constructor fields: `color`, `border`, +/// `borderRadius`, `boxShadow`, `gradient`, `backgroundBlendMode`, and +/// `shape`. +/// +/// `image` is intentionally deferred until the dedicated +/// `DecorationImage`/`ImageProvider` plan. Decode accepts only missing or +/// explicit `null` image values; encode always emits `"image": null` to keep +/// the canonical object shape stable. +final boxDecorationCodec = + Ack.object({ + 'color': colorCodec.nullable().optional(), + 'image': Ack.any().nullable().optional().refine( + (_) => false, + message: _unsupportedDecorationImageMessage, + ), + 'border': boxBorderCodec.nullable().optional(), + 'borderRadius': borderRadiusGeometryCodec.nullable().optional(), + 'boxShadow': Ack.list(boxShadowCodec).nullable().optional(), + 'gradient': gradientCodec.nullable().optional(), + 'backgroundBlendMode': blendModeCodec.nullable().optional(), + 'shape': boxShapeCodec.withDefault(BoxShape.rectangle), + }).codec( + decode: _decodeBoxDecoration, + encode: _encodeBoxDecoration, + ); + +BoxDecoration _decodeBoxDecoration(JsonMap data) { + return BoxDecoration( + color: readNullableValue(data, 'color'), + border: readNullableValue(data, 'border'), + borderRadius: readNullableValue(data, 'borderRadius'), + boxShadow: readNullableList(data, 'boxShadow'), + gradient: readNullableValue(data, 'gradient'), + backgroundBlendMode: readNullableValue( + data, + 'backgroundBlendMode', + ), + shape: readValue(data, 'shape'), + ); +} + +JsonMap _encodeBoxDecoration(BoxDecoration value) { + return { + 'color': value.color, + 'image': null, + 'border': value.border, + 'borderRadius': value.borderRadius, + 'boxShadow': value.boxShadow, + 'gradient': value.gradient, + 'backgroundBlendMode': value.backgroundBlendMode, + 'shape': value.shape, + }; +} diff --git a/packages/flutter_codec/test/box_decoration/box_decoration_test.dart b/packages/flutter_codec/test/box_decoration/box_decoration_test.dart new file mode 100644 index 00000000..17c9a341 --- /dev/null +++ b/packages/flutter_codec/test/box_decoration/box_decoration_test.dart @@ -0,0 +1,188 @@ +import 'dart:convert'; + +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +const _redBlueHex = ['#FF0000', '#0000FF']; +const _redBlue = [Color(0xFFFF0000), Color(0xFF0000FF)]; + +void main() { + group('boxDecorationCodec decode', () { + test('decodes an empty object as the default BoxDecoration', () { + expect(boxDecorationCodec.parse({}), const BoxDecoration()); + }); + + test('decodes a full real-world BoxDecoration without image', () { + expect( + boxDecorationCodec.parse({ + 'color': '#2196F3', + 'border': {'color': '#FF0000', 'width': 2}, + 'borderRadius': 8, + 'boxShadow': [ + { + 'color': '#55000000', + 'offset': {'x': 1, 'y': 2}, + 'blurRadius': 3, + 'spreadRadius': 4, + 'blurStyle': 'outer', + }, + ], + 'gradient': { + 'type': 'linear', + 'begin': 'topLeft', + 'end': 'bottomRight', + 'colors': _redBlueHex, + 'stops': [0, 1], + 'tileMode': 'mirror', + }, + 'backgroundBlendMode': 'multiply', + 'shape': 'circle', + }), + BoxDecoration( + color: const Color(0xFF2196F3), + border: Border.all(color: const Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(8), + boxShadow: const [ + BoxShadow( + color: Color(0x55000000), + offset: Offset(1, 2), + blurRadius: 3, + spreadRadius: 4, + blurStyle: BlurStyle.outer, + ), + ], + gradient: const LinearGradient( + begin: Alignment.topLeft, + end: Alignment.bottomRight, + colors: _redBlue, + stops: [0, 1], + tileMode: TileMode.mirror, + ), + backgroundBlendMode: BlendMode.multiply, + shape: BoxShape.circle, + ), + ); + }); + + test('decodes partial inputs', () { + expect( + boxDecorationCodec.parse({'color': '#00FF00'}), + const BoxDecoration(color: Color(0xFF00FF00)), + ); + expect( + boxDecorationCodec.parse({'shape': 'circle'}), + const BoxDecoration(shape: BoxShape.circle), + ); + }); + }); + + group('boxDecorationCodec encode', () { + test('emits a full canonical map with explicit nulls for defaults', () { + final encoded = boxDecorationCodec.encode(const BoxDecoration()); + + expect(encoded, { + 'color': null, + 'image': null, + 'border': null, + 'borderRadius': null, + 'boxShadow': null, + 'gradient': null, + 'backgroundBlendMode': null, + 'shape': 'rectangle', + }); + expectJsonSafe(encoded); + }); + + test('round-trips a full BoxDecoration', () { + final original = BoxDecoration( + color: const Color(0xFF2196F3), + border: Border.all(color: const Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(8), + boxShadow: const [ + BoxShadow( + color: Color(0x55000000), + offset: Offset(1, 2), + blurRadius: 3, + spreadRadius: 4, + blurStyle: BlurStyle.outer, + ), + ], + gradient: const LinearGradient( + begin: Alignment.topLeft, + end: Alignment.bottomRight, + colors: _redBlue, + stops: [0, 1], + tileMode: TileMode.mirror, + ), + backgroundBlendMode: BlendMode.multiply, + ); + + final encoded = boxDecorationCodec.encode(original); + + expect(boxDecorationCodec.parse(encoded), original); + expectJsonSafe(encoded); + }); + }); + + group('boxDecorationCodec image deferral', () { + test('accepts an explicit null image', () { + expect(boxDecorationCodec.parse({'image': null}), const BoxDecoration()); + }); + + test('rejects non-null image values with the deferral message', () { + for (final input in const [ + {'image': {}}, + {'image': 'anything'}, + ]) { + final result = boxDecorationCodec.safeParse(input); + + expect(result.isFail, isTrue); + expect( + jsonEncode(result.getError().toMap()), + contains( + 'DecorationImage is not yet supported by boxDecorationCodec.', + ), + ); + } + }); + + test('always emits image as null', () { + final encoded = boxDecorationCodec.encode(const BoxDecoration()); + + expect(encoded, isNotNull); + expect(encoded!['image'], isNull); + }); + }); + + group('boxDecorationCodec rejects invalid input', () { + const invalidCases = { + 'unknown keys': {'foo': 1}, + 'invalid color': {'color': 'not-a-color'}, + 'mismatched border keys': { + 'border': {'top': 'none', 'right': 'none', 'start': 'none'}, + }, + 'invalid gradient discriminator': { + 'gradient': {'type': 'spiral', 'colors': _redBlueHex}, + }, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(boxDecorationCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + + group('boxDecorationCodec JSON Schema', () { + test('dependent codec schemas flow through composition', () { + final schema = jsonEncode(boxDecorationCodec.toJsonSchema()); + + expect(schema, contains('"circle"')); + expect(schema, contains('"const":"linear"')); + expect(schema, contains(r'^#[0-9A-Fa-f]{6}$')); + }); + }); +} From 7b5a2ad5abb77f3fa2a425eacd19669649e7e50b Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 20:41:38 -0400 Subject: [PATCH 31/53] feat(ack)!: union-owned discriminator injects key on encode The synthesized discriminator schema produced by effectiveDiscriminatedObjectBranch now carries withDefault(discriminatorValue), so a discriminated branch whose runtime encode lambda omits the discriminator key still emits it via the default. Closes the encode side of PR #107's union-owned discriminator story (parse already synthesized the literal; encode previously required the branch to emit the key). ack_schema_model_builder.\_discriminated wraps each branch's exported model with _withRequiredDiscriminator so the JSON Schema marks the discriminator as required and strips the synthetic default from the output. --- .../ack_schema_model_builder.dart | 41 ++++++++++++++++++- .../src/utils/discriminated_branch_utils.dart | 8 +++- .../discriminated_object_schema_test.dart | 7 ++++ 3 files changed, 54 insertions(+), 2 deletions(-) diff --git a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart index 727882e7..4986f891 100644 --- a/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart +++ b/packages/ack/lib/src/schema_model/ack_schema_model_builder.dart @@ -226,7 +226,9 @@ AckSchemaModel _discriminated(DiscriminatedObjectSchema schema) { 'Discriminated branch "${entry.key}" must export as an object schema model.', ); } - branches.add(converted); + branches.add( + _withRequiredDiscriminator(converted, schema.discriminatorKey), + ); } return AckAnyOfSchemaModel( @@ -239,6 +241,43 @@ AckSchemaModel _discriminated(DiscriminatedObjectSchema schema) { ); } +AckObjectSchemaModel _withRequiredDiscriminator( + AckObjectSchemaModel model, + String discriminatorKey, +) { + if (model.properties?.containsKey(discriminatorKey) != true) { + return model; + } + + final properties = model.properties!; + final discriminator = properties[discriminatorKey]!; + final normalizedProperties = discriminator.defaultValue == null + ? properties + : {...properties, discriminatorKey: discriminator.withDefaultValue(null)}; + final required = model.required ?? const []; + if (required.contains(discriminatorKey) && + identical(normalizedProperties, properties)) { + return model; + } + + return AckObjectSchemaModel( + properties: normalizedProperties, + required: required.contains(discriminatorKey) + ? required + : [discriminatorKey, ...required], + propertyOrdering: model.propertyOrdering, + minProperties: model.minProperties, + maxProperties: model.maxProperties, + additionalProperties: model.additionalProperties, + title: model.title, + description: model.description, + nullable: model.nullable, + defaultValue: model.defaultValue, + warnings: model.warnings, + extensions: model.extensions, + ); +} + AckSchemaModel _applyConstraints(AckSchemaModel model, AckSchema schema) { var next = model; for (final constraint in schema.constraints) { diff --git a/packages/ack/lib/src/utils/discriminated_branch_utils.dart b/packages/ack/lib/src/utils/discriminated_branch_utils.dart index 157ee7fe..7ebc1638 100644 --- a/packages/ack/lib/src/utils/discriminated_branch_utils.dart +++ b/packages/ack/lib/src/utils/discriminated_branch_utils.dart @@ -70,8 +70,14 @@ ObjectSchema effectiveDiscriminatedObjectBranch({ ); } + final discriminatorSchema = existingDiscriminator == null + ? _discriminatorLiteralSchema( + discriminatorValue, + ).withDefault(discriminatorValue) + : _discriminatorLiteralSchema(discriminatorValue); + final properties = { - discriminatorKey: _discriminatorLiteralSchema(discriminatorValue), + discriminatorKey: discriminatorSchema, for (final entry in objectSchema.properties.entries) if (entry.key != discriminatorKey) entry.key: entry.value, }; diff --git a/packages/ack/test/schemas/discriminated_object_schema_test.dart b/packages/ack/test/schemas/discriminated_object_schema_test.dart index 410cfb68..d6a7f7c2 100644 --- a/packages/ack/test/schemas/discriminated_object_schema_test.dart +++ b/packages/ack/test/schemas/discriminated_object_schema_test.dart @@ -94,6 +94,13 @@ void main() { expect(result.getOrThrow(), {'type': 'dog', 'bark': false}); }); + test('encodes a branch whose runtime omits the discriminator', () { + final result = unionOwnedSchema.safeEncode({'bark': false}); + + expect(result.isOk, isTrue); + expect(result.getOrThrow(), {'type': 'dog', 'bark': false}); + }); + test('parse against the wrong branch fails on the literal', () { final result = unionOwnedSchema.safeParse({ 'type': 'cat', From b60633aa01ea5bb370bf0376ecf9c11df16ab1e4 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 20:41:50 -0400 Subject: [PATCH 32/53] feat(flutter_codec): add ImageProvider, DecorationImage, and Rect codecs - rectCodec (lib/src/primitives/rect.dart): {left, top, right, bottom} via Rect.fromLTRB. - imageProviderCodec (lib/src/image_providers.dart): discriminated union over NetworkImage and AssetImage. Recursive providers, FileImage, MemoryImage, and custom asset bundles are intentionally rejected for JSON-safety. - networkImageCodec / assetImageCodec exported as the typed branch codecs. - webHtmlElementStrategyCodec added to enums.dart (used by NetworkImage). - decorationImageCodec (lib/src/decoration_image.dart): composite codec for DecorationImage. Composes imageProviderCodec, BoxFit/ImageRepeat/FilterQuality enums, alignmentGeometryCodec, and rectCodec. opacity is range-validated [0,1] (stricter than Flutter, which only clamps at paint time). colorFilter and onError are intentionally unsupported and excluded from DecorationImage's ==. - boxDecorationCodec: 'image' field now uses decorationImageCodec.nullable() .optional() instead of the null-only placeholder; the deferral comment is gone. - README updated to advertise ImageProvider and the BoxDecoration.image gap is no longer applicable. - Doc-comment polish per Effective Dart: private helpers in font_weight, text_decoration, locale, and text_style switched from /// to //; identifier references throughout now use [Symbol] form; broken [_decodeLocale] reference in locale.dart removed. Tests: 418/418 pass (added rect_test, decoration_image_test, and image_providers groups; updated box_decoration_test to drop 'image deferral' and add 'image integration'). --- packages/flutter_codec/README.md | 4 +- packages/flutter_codec/lib/flutter_codec.dart | 2 + .../flutter_codec/lib/src/box_decoration.dart | 27 +- .../lib/src/decoration_image.dart | 76 ++++++ packages/flutter_codec/lib/src/enums.dart | 7 +- .../lib/src/image_providers.dart | 95 +++++++ .../flutter_codec/lib/src/primitives.dart | 1 + .../lib/src/primitives/font_weight.dart | 16 +- .../lib/src/primitives/locale.dart | 8 +- .../lib/src/primitives/rect.dart | 28 ++ .../lib/src/primitives/text_decoration.dart | 2 +- .../flutter_codec/lib/src/text_style.dart | 28 +- .../box_decoration/box_decoration_test.dart | 53 ++-- .../decoration_image_test.dart | 143 ++++++++++ .../flutter_codec/test/enums/enums_test.dart | 5 + .../image_providers/image_providers_test.dart | 244 ++++++++++++++++++ .../test/primitives/rect_test.dart | 62 +++++ 17 files changed, 734 insertions(+), 67 deletions(-) create mode 100644 packages/flutter_codec/lib/src/decoration_image.dart create mode 100644 packages/flutter_codec/lib/src/image_providers.dart create mode 100644 packages/flutter_codec/lib/src/primitives/rect.dart create mode 100644 packages/flutter_codec/test/decoration_image/decoration_image_test.dart create mode 100644 packages/flutter_codec/test/image_providers/image_providers_test.dart create mode 100644 packages/flutter_codec/test/primitives/rect_test.dart diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index 64d41630..df649ee8 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -5,8 +5,8 @@ Flutter value codecs built on ACK schemas. Includes enum codecs and value codecs for `Color`, `Offset`, `Radius`, `Alignment` / `AlignmentDirectional` / `AlignmentGeometry`, and `EdgeInsets` / `EdgeInsetsDirectional` / `EdgeInsetsGeometry`, plus composite -painting codecs for borders, shadows, gradients, `TextStyle`, and -`BoxDecoration`. +painting codecs for borders, shadows, gradients, `ImageProvider` +(`NetworkImage` / `AssetImage`), `TextStyle`, and `BoxDecoration`. `BoxDecoration.image` is currently deferred: decode accepts only missing or `null` image values, and encode emits `"image": null`. diff --git a/packages/flutter_codec/lib/flutter_codec.dart b/packages/flutter_codec/lib/flutter_codec.dart index f32e0523..4774cb4d 100644 --- a/packages/flutter_codec/lib/flutter_codec.dart +++ b/packages/flutter_codec/lib/flutter_codec.dart @@ -3,8 +3,10 @@ library; export 'src/borders.dart'; export 'src/box_decoration.dart'; +export 'src/decoration_image.dart'; export 'src/enums.dart'; export 'src/gradients.dart'; +export 'src/image_providers.dart'; export 'src/primitives.dart'; export 'src/shadows.dart'; export 'src/text_style.dart'; diff --git a/packages/flutter_codec/lib/src/box_decoration.dart b/packages/flutter_codec/lib/src/box_decoration.dart index 0551da1e..b002ed61 100644 --- a/packages/flutter_codec/lib/src/box_decoration.dart +++ b/packages/flutter_codec/lib/src/box_decoration.dart @@ -8,9 +8,11 @@ import 'package:flutter/painting.dart' BoxShadow, BoxShape, Color, + DecorationImage, Gradient; import 'borders.dart' show boxBorderCodec; +import 'decoration_image.dart' show decorationImageCodec; import 'enums.dart' show blendModeCodec, boxShapeCodec; import 'gradients.dart' show gradientCodec; import 'json_readers.dart'; @@ -18,26 +20,18 @@ import 'primitives/border_radius.dart' show borderRadiusGeometryCodec; import 'primitives/color.dart' show colorCodec; import 'shadows.dart' show boxShadowCodec; -const _unsupportedDecorationImageMessage = - 'DecorationImage is not yet supported by boxDecorationCodec.'; - /// Codec for [BoxDecoration]. /// -/// Supports the JSON-safe constructor fields: `color`, `border`, -/// `borderRadius`, `boxShadow`, `gradient`, `backgroundBlendMode`, and -/// `shape`. -/// -/// `image` is intentionally deferred until the dedicated -/// `DecorationImage`/`ImageProvider` plan. Decode accepts only missing or -/// explicit `null` image values; encode always emits `"image": null` to keep -/// the canonical object shape stable. +/// Composes every JSON-safe constructor field: `color` ([colorCodec]), +/// `image` ([decorationImageCodec]), `border` ([boxBorderCodec]), +/// `borderRadius` ([borderRadiusGeometryCodec]), `boxShadow` +/// ([boxShadowCodec]), `gradient` ([gradientCodec]), `backgroundBlendMode` +/// ([blendModeCodec]), and `shape` ([boxShapeCodec], default +/// [BoxShape.rectangle]). final boxDecorationCodec = Ack.object({ 'color': colorCodec.nullable().optional(), - 'image': Ack.any().nullable().optional().refine( - (_) => false, - message: _unsupportedDecorationImageMessage, - ), + 'image': decorationImageCodec.nullable().optional(), 'border': boxBorderCodec.nullable().optional(), 'borderRadius': borderRadiusGeometryCodec.nullable().optional(), 'boxShadow': Ack.list(boxShadowCodec).nullable().optional(), @@ -52,6 +46,7 @@ final boxDecorationCodec = BoxDecoration _decodeBoxDecoration(JsonMap data) { return BoxDecoration( color: readNullableValue(data, 'color'), + image: readNullableValue(data, 'image'), border: readNullableValue(data, 'border'), borderRadius: readNullableValue(data, 'borderRadius'), boxShadow: readNullableList(data, 'boxShadow'), @@ -67,7 +62,7 @@ BoxDecoration _decodeBoxDecoration(JsonMap data) { JsonMap _encodeBoxDecoration(BoxDecoration value) { return { 'color': value.color, - 'image': null, + 'image': value.image, 'border': value.border, 'borderRadius': value.borderRadius, 'boxShadow': value.boxShadow, diff --git a/packages/flutter_codec/lib/src/decoration_image.dart b/packages/flutter_codec/lib/src/decoration_image.dart new file mode 100644 index 00000000..6c6185e7 --- /dev/null +++ b/packages/flutter_codec/lib/src/decoration_image.dart @@ -0,0 +1,76 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show + Alignment, + AlignmentGeometry, + BoxFit, + DecorationImage, + FilterQuality, + ImageProvider, + ImageRepeat, + Rect; + +import 'enums.dart' show boxFitCodec, filterQualityCodec, imageRepeatCodec; +import 'image_providers.dart' show imageProviderCodec; +import 'json_readers.dart'; +import 'primitives/alignment.dart' show alignmentGeometryCodec; +import 'primitives/rect.dart' show rectCodec; + +/// Codec for [DecorationImage]. +/// +/// Composes [imageProviderCodec] (the required image), the [BoxFit] / +/// [ImageRepeat] / [FilterQuality] enum codecs, [alignmentGeometryCodec], and +/// [rectCodec]. All non-`image` fields default to the Flutter +/// [DecorationImage] constructor defaults. +/// +/// Note: `opacity` is range-validated `[0, 1]` here. Flutter only clamps it +/// at paint time, so this codec is stricter than the constructor — invalid +/// inputs fail to parse rather than silently clamp. +/// +/// Intentionally unsupported: +/// * `colorFilter` — `ColorFilter` has no portable JSON shape. +/// * `onError` — callback type, not serializable. +/// +/// Both are excluded from [DecorationImage]'s `==`, so round-trips remain +/// stable. +final decorationImageCodec = + Ack.object({ + 'image': imageProviderCodec, + 'fit': boxFitCodec.nullable().optional(), + 'alignment': alignmentGeometryCodec.withDefault(Alignment.center), + 'centerSlice': rectCodec.nullable().optional(), + 'repeat': imageRepeatCodec.withDefault(ImageRepeat.noRepeat), + 'matchTextDirection': Ack.boolean().withDefault(false), + 'scale': Ack.number().withDefault(1.0), + 'opacity': Ack.number().min(0).max(1).withDefault(1.0), + 'filterQuality': filterQualityCodec.withDefault(FilterQuality.medium), + 'invertColors': Ack.boolean().withDefault(false), + 'isAntiAlias': Ack.boolean().withDefault(false), + }).codec( + decode: (data) => DecorationImage( + image: readValue(data, 'image'), + fit: readNullableValue(data, 'fit'), + alignment: readValue(data, 'alignment'), + centerSlice: readNullableValue(data, 'centerSlice'), + repeat: readValue(data, 'repeat'), + matchTextDirection: readValue(data, 'matchTextDirection'), + scale: readDouble(data, 'scale'), + opacity: readDouble(data, 'opacity'), + filterQuality: readValue(data, 'filterQuality'), + invertColors: readValue(data, 'invertColors'), + isAntiAlias: readValue(data, 'isAntiAlias'), + ), + encode: (value) => { + 'image': value.image, + 'fit': value.fit, + 'alignment': value.alignment, + 'centerSlice': value.centerSlice, + 'repeat': value.repeat, + 'matchTextDirection': value.matchTextDirection, + 'scale': value.scale, + 'opacity': value.opacity, + 'filterQuality': value.filterQuality, + 'invertColors': value.invertColors, + 'isAntiAlias': value.isAntiAlias, + }, + ); diff --git a/packages/flutter_codec/lib/src/enums.dart b/packages/flutter_codec/lib/src/enums.dart index 455810f8..4f3698f3 100644 --- a/packages/flutter_codec/lib/src/enums.dart +++ b/packages/flutter_codec/lib/src/enums.dart @@ -30,7 +30,8 @@ import 'package:flutter/painting.dart' TextOverflow, TextWidthBasis, TileMode, - VerticalDirection; + VerticalDirection, + WebHtmlElementStrategy; import 'package:flutter/rendering.dart' show CrossAxisAlignment, @@ -87,6 +88,10 @@ final hitTestBehaviorCodec = Ack.enumCodec(HitTestBehavior.values); final imageRepeatCodec = Ack.enumCodec(ImageRepeat.values); +final webHtmlElementStrategyCodec = Ack.enumCodec( + WebHtmlElementStrategy.values, +); + final mainAxisAlignmentCodec = Ack.enumCodec(MainAxisAlignment.values); final mainAxisSizeCodec = Ack.enumCodec(MainAxisSize.values); diff --git a/packages/flutter_codec/lib/src/image_providers.dart b/packages/flutter_codec/lib/src/image_providers.dart new file mode 100644 index 00000000..fbf43ae4 --- /dev/null +++ b/packages/flutter_codec/lib/src/image_providers.dart @@ -0,0 +1,95 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show AssetImage, ImageProvider, NetworkImage, WebHtmlElementStrategy; +import 'package:flutter/services.dart' show AssetBundle; + +import 'enums.dart' show webHtmlElementStrategyCodec; +import 'json_readers.dart'; + +final _headersCodec = Ack.object({}, additionalProperties: true) + .refine( + (value) => value.values.every((headerValue) => headerValue is String), + message: 'NetworkImage headers must be a JSON object with string values.', + ) + .codec>( + decode: (value) => value.cast(), + encode: (value) => Map.unmodifiable(value), + ); + +/// Codec for [NetworkImage]. +/// +/// Maps the portable public constructor fields only: `url`, `scale`, +/// `headers`, and `webHtmlElementStrategy`. The `"type"` discriminator is +/// added by [imageProviderCodec] when this codec is used as one of its +/// branches. +final networkImageCodec = + Ack.object({ + 'url': Ack.string().notEmpty(), + 'scale': Ack.number().min(0).withDefault(1.0), + 'headers': _headersCodec.nullable().optional(), + 'webHtmlElementStrategy': webHtmlElementStrategyCodec.withDefault( + WebHtmlElementStrategy.never, + ), + }).codec( + decode: (data) => NetworkImage( + readValue(data, 'url'), + scale: readDouble(data, 'scale'), + headers: readNullableValue>(data, 'headers'), + webHtmlElementStrategy: readValue( + data, + 'webHtmlElementStrategy', + ), + ), + encode: (value) => { + 'url': value.url, + 'scale': value.scale, + 'headers': value.headers, + 'webHtmlElementStrategy': value.webHtmlElementStrategy, + }, + ); + +/// Codec for [AssetImage]. +/// +/// Custom [AssetBundle] instances are intentionally unsupported because they +/// are not portable through JSON. Use package-qualified assets for JSON-safe +/// asset references. The `"type"` discriminator is added by +/// [imageProviderCodec] when this codec is used as one of its branches. +final assetImageCodec = + Ack.object({ + 'assetName': Ack.string().notEmpty(), + 'package': Ack.string().nullable().optional(), + }).codec( + decode: (data) => AssetImage( + readValue(data, 'assetName'), + package: readNullableValue(data, 'package'), + ), + encode: (value) { + if (value.bundle != null) { + throw UnsupportedError( + 'AssetImage.bundle is not supported by assetImageCodec.', + ); + } + + return {'assetName': value.assetName, 'package': value.package}; + }, + ); + +/// Codec for JSON-safe [ImageProvider] values, discriminated by `"type"`. +/// +/// Support is intentionally limited to [NetworkImage] (`"network"`) and +/// [AssetImage] (`"asset"`). Recursive providers ([ResizeImage]), local files +/// ([FileImage]), memory blobs ([MemoryImage]), custom providers, and custom +/// asset bundles are rejected instead of guessing a non-portable JSON shape. +final imageProviderCodec = Ack.discriminated>( + discriminatorKey: 'type', + schemas: { + 'network': networkImageCodec.codec>( + decode: (value) => value, + encode: (value) => value as NetworkImage, + ), + 'asset': assetImageCodec.codec>( + decode: (value) => value, + encode: (value) => value as AssetImage, + ), + }, +); diff --git a/packages/flutter_codec/lib/src/primitives.dart b/packages/flutter_codec/lib/src/primitives.dart index 1d0610cd..f41c1146 100644 --- a/packages/flutter_codec/lib/src/primitives.dart +++ b/packages/flutter_codec/lib/src/primitives.dart @@ -6,4 +6,5 @@ export 'primitives/font_weight.dart'; export 'primitives/locale.dart'; export 'primitives/offset.dart'; export 'primitives/radius.dart'; +export 'primitives/rect.dart'; export 'primitives/text_decoration.dart'; diff --git a/packages/flutter_codec/lib/src/primitives/font_weight.dart b/packages/flutter_codec/lib/src/primitives/font_weight.dart index aea7f4a2..96ebfcac 100644 --- a/packages/flutter_codec/lib/src/primitives/font_weight.dart +++ b/packages/flutter_codec/lib/src/primitives/font_weight.dart @@ -2,12 +2,12 @@ import 'dart:ui' show FontWeight; import 'package:ack/ack.dart'; -/// String aliases accepted for [FontWeight]. -/// -/// The first nine entries (`w100`..`w900`) are deliberately parallel to -/// [FontWeight.values] so encoding can map between the two by index. The -/// trailing `normal` and `bold` are accept-only aliases for `w400`/`w700` and -/// are never emitted on encode. +// String aliases accepted for FontWeight. +// +// The first nine entries (w100..w900) are deliberately parallel to +// FontWeight.values so encoding can map between the two by index. The +// trailing `normal` and `bold` are accept-only aliases for w400/w700 and are +// never emitted on encode. enum _FontWeight { w100, w200, @@ -26,8 +26,8 @@ enum _FontWeight { /// /// Accepts `"w100"` through `"w900"` plus the conventional aliases `"normal"` /// and `"bold"`. Encoding canonicalizes every value to the numeric `wNNN` -/// form, since `FontWeight.normal == FontWeight.w400` and -/// `FontWeight.bold == FontWeight.w700` (same const instances). +/// form, since [FontWeight.normal] is the same instance as [FontWeight.w400] +/// (and likewise for [FontWeight.bold] / [FontWeight.w700]). final fontWeightCodec = Ack.enumCodec(_FontWeight.values).codec( decode: (value) => switch (value) { _FontWeight.normal => FontWeight.normal, diff --git a/packages/flutter_codec/lib/src/primitives/locale.dart b/packages/flutter_codec/lib/src/primitives/locale.dart index 5df9bd99..ef524d18 100644 --- a/packages/flutter_codec/lib/src/primitives/locale.dart +++ b/packages/flutter_codec/lib/src/primitives/locale.dart @@ -2,10 +2,10 @@ import 'dart:ui' show Locale; import 'package:ack/ack.dart'; -/// BCP-47 subset: required language (2-3 lowercase), optional script -/// (4-character title case), optional region (2 uppercase letters or 3 digits). -/// Capture groups extract each subtag for [_decodeLocale]; the unanchored -/// pattern matters only for validation, so the groups don't affect matching. +// BCP-47 subset: required language (2-3 lowercase), optional script +// (4-character title case), optional region (2 uppercase letters or 3 digits). +// Capture groups extract each subtag for the inline decoder on [localeCodec]; +// they don't affect validation behavior. const _localePattern = r'^([a-z]{2,3})(?:-([A-Z][a-z]{3}))?(?:-([A-Z]{2}|\d{3}))?$'; final _localeRegex = RegExp(_localePattern); diff --git a/packages/flutter_codec/lib/src/primitives/rect.dart b/packages/flutter_codec/lib/src/primitives/rect.dart new file mode 100644 index 00000000..45e372d5 --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/rect.dart @@ -0,0 +1,28 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' show Rect; + +import '../json_readers.dart'; + +/// Codec for [Rect], represented as `{"left": ..., "top": ..., "right": ..., +/// "bottom": ...}`. All four sides are required; encoding uses LTRB form +/// to match the canonical Flutter constructor [Rect.fromLTRB]. +final rectCodec = + Ack.object({ + 'left': Ack.number(), + 'top': Ack.number(), + 'right': Ack.number(), + 'bottom': Ack.number(), + }).codec( + decode: (data) => Rect.fromLTRB( + readDouble(data, 'left'), + readDouble(data, 'top'), + readDouble(data, 'right'), + readDouble(data, 'bottom'), + ), + encode: (value) => { + 'left': value.left, + 'top': value.top, + 'right': value.right, + 'bottom': value.bottom, + }, + ); diff --git a/packages/flutter_codec/lib/src/primitives/text_decoration.dart b/packages/flutter_codec/lib/src/primitives/text_decoration.dart index c03c15de..811c6a3e 100644 --- a/packages/flutter_codec/lib/src/primitives/text_decoration.dart +++ b/packages/flutter_codec/lib/src/primitives/text_decoration.dart @@ -2,7 +2,7 @@ import 'dart:ui' show TextDecoration; import 'package:ack/ack.dart'; -/// Atomic [TextDecoration] aliases, encoded as string names. +// Atomic TextDecoration aliases, encoded as string names. enum _TextDecoration { none, underline, overline, lineThrough } final _atomicCodec = Ack.enumCodec(_TextDecoration.values); diff --git a/packages/flutter_codec/lib/src/text_style.dart b/packages/flutter_codec/lib/src/text_style.dart index 5f340801..4be55006 100644 --- a/packages/flutter_codec/lib/src/text_style.dart +++ b/packages/flutter_codec/lib/src/text_style.dart @@ -30,14 +30,18 @@ import 'shadows.dart' show shadowCodec; /// Codec for [TextStyle]. /// /// Supported fields are the JSON-safe constructor parameters: colors, -/// typography scalars, enum fields, [FontWeight], [ui.Locale], shadows, -/// [TextDecoration], font families, package, and overflow. +/// typography scalars, enum fields, [FontWeight], [ui.Locale], +/// [TextStyle.shadows], [TextDecoration], [TextStyle.fontFamily], +/// [TextStyle.fontFamilyFallback], [TextStyle.package], and +/// [TextStyle.overflow]. /// /// Unsupported fields are intentionally omitted: -/// * `foreground` and `background` are `Paint?`, which is not JSON-safe. -/// * `debugLabel` is debug metadata and is excluded from [TextStyle] equality. -/// * `fontFeatures` and `fontVariations` are niche typography fields reserved -/// for a focused follow-up. +/// * [TextStyle.foreground] and [TextStyle.background] are [Paint]`?`, which +/// is not JSON-safe. +/// * [TextStyle.debugLabel] is debug metadata and is excluded from +/// [TextStyle] equality. +/// * [TextStyle.fontFeatures] and [TextStyle.fontVariations] are niche +/// typography fields reserved for a focused follow-up. final textStyleCodec = Ack.object({ 'inherit': Ack.boolean().withDefault(true), 'color': colorCodec.nullable().optional(), @@ -122,10 +126,10 @@ JsonMap _encodeTextStyle(TextStyle value) { }; } -/// Unfolds Flutter's internal `packages//` storage back to the -/// user-supplied `(fontFamily, fontFamilyFallback, package)` triple, when all -/// referenced families share the same package prefix. Falls back to the -/// stored (prefixed) form if the prefix is missing or inconsistent. +// Unfolds Flutter's internal `packages//` storage back to the +// user-supplied `(fontFamily, fontFamilyFallback, package)` triple, when all +// referenced families share the same package prefix. Falls back to the +// stored (prefixed) form if the prefix is missing or inconsistent. ({String? family, List? fallback, String? packageName}) _encodeFontFamilyFields(TextStyle value) { final family = value.fontFamily; @@ -145,8 +149,8 @@ _encodeFontFamilyFields(TextStyle value) { ); } -/// Returns the package name shared by every `packages//` entry -/// in [families], or null if any entry lacks the prefix or disagrees. +// Returns the package name shared by every `packages//` entry +// in `families`, or null if any entry lacks the prefix or disagrees. String? _sharedPackagePrefix(List families) { const prefix = 'packages/'; String? shared; diff --git a/packages/flutter_codec/test/box_decoration/box_decoration_test.dart b/packages/flutter_codec/test/box_decoration/box_decoration_test.dart index 17c9a341..e0af81ae 100644 --- a/packages/flutter_codec/test/box_decoration/box_decoration_test.dart +++ b/packages/flutter_codec/test/box_decoration/box_decoration_test.dart @@ -96,7 +96,7 @@ void main() { expectJsonSafe(encoded); }); - test('round-trips a full BoxDecoration', () { + test('round-trips a full BoxDecoration without image', () { final original = BoxDecoration( color: const Color(0xFF2196F3), border: Border.all(color: const Color(0xFFFF0000), width: 2), @@ -127,33 +127,35 @@ void main() { }); }); - group('boxDecorationCodec image deferral', () { - test('accepts an explicit null image', () { - expect(boxDecorationCodec.parse({'image': null}), const BoxDecoration()); + group('boxDecorationCodec image integration', () { + test('decodes an image field via decorationImageCodec', () { + final parsed = boxDecorationCodec.parse({ + 'image': { + 'image': {'type': 'network', 'url': 'https://example.com/foo.png'}, + 'fit': 'cover', + }, + }); + expect(parsed!.image, isA()); + expect(parsed.image!.image, isA()); + expect(parsed.image!.fit, BoxFit.cover); }); - test('rejects non-null image values with the deferral message', () { - for (final input in const [ - {'image': {}}, - {'image': 'anything'}, - ]) { - final result = boxDecorationCodec.safeParse(input); - - expect(result.isFail, isTrue); - expect( - jsonEncode(result.getError().toMap()), - contains( - 'DecorationImage is not yet supported by boxDecorationCodec.', - ), - ); - } + test('accepts an explicit null image', () { + expect(boxDecorationCodec.parse({'image': null}), const BoxDecoration()); }); - test('always emits image as null', () { - final encoded = boxDecorationCodec.encode(const BoxDecoration()); + test('round-trips a BoxDecoration with an image', () { + final original = BoxDecoration( + image: DecorationImage( + image: const NetworkImage('https://example.com/foo.png'), + fit: BoxFit.cover, + alignment: Alignment.topLeft, + ), + ); - expect(encoded, isNotNull); - expect(encoded!['image'], isNull); + final encoded = boxDecorationCodec.encode(original); + expect(boxDecorationCodec.parse(encoded), original); + expectJsonSafe(encoded); }); }); @@ -167,6 +169,11 @@ void main() { 'invalid gradient discriminator': { 'gradient': {'type': 'spiral', 'colors': _redBlueHex}, }, + 'invalid nested image provider': { + 'image': { + 'image': {'type': 'spiral', 'url': 'https://example.com/x.png'}, + }, + }, }; invalidCases.forEach((name, input) { diff --git a/packages/flutter_codec/test/decoration_image/decoration_image_test.dart b/packages/flutter_codec/test/decoration_image/decoration_image_test.dart new file mode 100644 index 00000000..52e0fc0a --- /dev/null +++ b/packages/flutter_codec/test/decoration_image/decoration_image_test.dart @@ -0,0 +1,143 @@ +import 'dart:convert'; + +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +const _networkUrl = 'https://example.com/image.png'; + +void main() { + group('decorationImageCodec decode', () { + test('decodes a minimal input as DecorationImage with defaults', () { + final parsed = decorationImageCodec.parse({ + 'image': {'type': 'network', 'url': _networkUrl}, + }); + expect(parsed, DecorationImage(image: const NetworkImage(_networkUrl))); + }); + + test('decodes a full real-world DecorationImage', () { + final parsed = decorationImageCodec.parse({ + 'image': {'type': 'asset', 'assetName': 'icons/foo.png'}, + 'fit': 'cover', + 'alignment': 'topLeft', + 'centerSlice': {'left': 1, 'top': 2, 'right': 3, 'bottom': 4}, + 'repeat': 'repeat', + 'matchTextDirection': true, + 'scale': 2.0, + 'opacity': 0.5, + 'filterQuality': 'high', + 'invertColors': true, + 'isAntiAlias': true, + }); + expect( + parsed, + DecorationImage( + image: const AssetImage('icons/foo.png'), + fit: BoxFit.cover, + alignment: Alignment.topLeft, + centerSlice: const Rect.fromLTRB(1, 2, 3, 4), + repeat: ImageRepeat.repeat, + matchTextDirection: true, + scale: 2.0, + opacity: 0.5, + filterQuality: FilterQuality.high, + invertColors: true, + isAntiAlias: true, + ), + ); + }); + }); + + group('decorationImageCodec encode', () { + test('emits a full canonical map with explicit defaults', () { + final encoded = decorationImageCodec.encode( + DecorationImage(image: const NetworkImage(_networkUrl)), + ); + expect(encoded, { + 'image': { + 'type': 'network', + 'url': _networkUrl, + 'scale': 1.0, + 'headers': null, + 'webHtmlElementStrategy': 'never', + }, + 'fit': null, + 'alignment': 'center', + 'centerSlice': null, + 'repeat': 'noRepeat', + 'matchTextDirection': false, + 'scale': 1.0, + 'opacity': 1.0, + 'filterQuality': 'medium', + 'invertColors': false, + 'isAntiAlias': false, + }); + expectJsonSafe(encoded); + }); + + test('round-trips a fully-populated DecorationImage', () { + final original = DecorationImage( + image: const AssetImage('icons/foo.png', package: 'my_pkg'), + fit: BoxFit.cover, + alignment: Alignment.bottomRight, + centerSlice: const Rect.fromLTRB(1, 2, 3, 4), + repeat: ImageRepeat.repeatX, + matchTextDirection: true, + scale: 1.5, + opacity: 0.75, + filterQuality: FilterQuality.low, + invertColors: true, + isAntiAlias: true, + ); + + final encoded = decorationImageCodec.encode(original); + expect(decorationImageCodec.parse(encoded), original); + expectJsonSafe(encoded); + }); + }); + + group('decorationImageCodec rejects invalid input', () { + const invalidCases = { + 'missing image': {}, + 'invalid image type': { + 'image': {'type': 'spiral', 'url': _networkUrl}, + }, + 'invalid fit': { + 'image': {'type': 'network', 'url': _networkUrl}, + 'fit': 'squoosh', + }, + 'opacity above 1': { + 'image': {'type': 'network', 'url': _networkUrl}, + 'opacity': 1.5, + }, + 'opacity below 0': { + 'image': {'type': 'network', 'url': _networkUrl}, + 'opacity': -0.1, + }, + 'unknown key': { + 'image': {'type': 'network', 'url': _networkUrl}, + 'foo': 1, + }, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(decorationImageCodec.safeParse(input).isFail, isTrue); + }); + }); + }); + + group('decorationImageCodec JSON Schema', () { + test('dependent codec markers flow through composition', () { + final schema = jsonEncode(decorationImageCodec.toJsonSchema()); + // image provider discriminator + expect(schema, contains('"network"')); + expect(schema, contains('"asset"')); + // opacity range + expect(schema, contains('"minimum":0')); + expect(schema, contains('"maximum":1')); + }); + }); +} diff --git a/packages/flutter_codec/test/enums/enums_test.dart b/packages/flutter_codec/test/enums/enums_test.dart index a97e9e2b..0229eb51 100644 --- a/packages/flutter_codec/test/enums/enums_test.dart +++ b/packages/flutter_codec/test/enums/enums_test.dart @@ -87,6 +87,11 @@ final _registry = <_EnumCase>[ HitTestBehavior.values, ), _EnumCase('ImageRepeat', imageRepeatCodec, ImageRepeat.values), + _EnumCase( + 'WebHtmlElementStrategy', + webHtmlElementStrategyCodec, + WebHtmlElementStrategy.values, + ), _EnumCase( 'MainAxisAlignment', mainAxisAlignmentCodec, diff --git a/packages/flutter_codec/test/image_providers/image_providers_test.dart b/packages/flutter_codec/test/image_providers/image_providers_test.dart new file mode 100644 index 00000000..0f044934 --- /dev/null +++ b/packages/flutter_codec/test/image_providers/image_providers_test.dart @@ -0,0 +1,244 @@ +import 'dart:convert'; + +import 'package:flutter/painting.dart'; +import 'package:flutter/services.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('networkImageCodec', () { + test('decodes minimal input with defaults', () { + final value = networkImageCodec.parse({ + 'url': 'https://example.com/image.png', + })!; + + expect(value.url, 'https://example.com/image.png'); + expect(value.scale, 1.0); + expect(value.headers, isNull); + expect(value.webHtmlElementStrategy, WebHtmlElementStrategy.never); + }); + + test('decodes full input', () { + final value = networkImageCodec.parse({ + 'url': 'https://example.com/image.png', + 'scale': 2, + 'headers': {'Authorization': 'Bearer token'}, + 'webHtmlElementStrategy': 'prefer', + })!; + + expect(value.url, 'https://example.com/image.png'); + expect(value.scale, 2.0); + expect(value.headers, {'Authorization': 'Bearer token'}); + expect(value.webHtmlElementStrategy, WebHtmlElementStrategy.prefer); + }); + + test('encodes canonical full map', () { + final encoded = networkImageCodec.encode( + const NetworkImage( + 'https://example.com/image.png', + scale: 2, + headers: {'Authorization': 'Bearer token'}, + webHtmlElementStrategy: WebHtmlElementStrategy.fallback, + ), + ); + + expect(encoded, { + 'url': 'https://example.com/image.png', + 'scale': 2.0, + 'headers': {'Authorization': 'Bearer token'}, + 'webHtmlElementStrategy': 'fallback', + }); + expectJsonSafe(encoded); + }); + + test('encodes explicit null headers', () { + expect( + networkImageCodec.encode( + const NetworkImage('https://example.com/image.png'), + ), + { + 'url': 'https://example.com/image.png', + 'scale': 1.0, + 'headers': null, + 'webHtmlElementStrategy': 'never', + }, + ); + }); + + test('rejects invalid input', () { + final cases = { + 'bad URL type': {'url': 3}, + 'negative scale': {'url': 'https://example.com/image.png', 'scale': -1}, + 'non-finite scale': { + 'url': 'https://example.com/image.png', + 'scale': double.infinity, + }, + 'non-string headers': { + 'url': 'https://example.com/image.png', + 'headers': {'Authorization': 1}, + }, + 'unknown key': {'url': 'https://example.com/image.png', 'extra': true}, + }; + + for (final MapEntry(key: label, value: input) in cases.entries) { + expect( + networkImageCodec.safeParse(input).isFail, + isTrue, + reason: label, + ); + } + }); + }); + + group('assetImageCodec', () { + test('decodes minimal input', () { + final value = assetImageCodec.parse({'assetName': 'assets/image.png'})!; + + expect(value.assetName, 'assets/image.png'); + expect(value.package, isNull); + expect(value.bundle, isNull); + }); + + test('decodes package-qualified assets', () { + final value = assetImageCodec.parse({ + 'assetName': 'assets/image.png', + 'package': 'design_system', + })!; + + expect(value.assetName, 'assets/image.png'); + expect(value.package, 'design_system'); + expect(value.bundle, isNull); + }); + + test('encodes canonical map', () { + final encoded = assetImageCodec.encode( + const AssetImage('assets/image.png'), + ); + + expect(encoded, {'assetName': 'assets/image.png', 'package': null}); + expectJsonSafe(encoded); + }); + + test('encodes package-qualified assets', () { + expect( + assetImageCodec.encode( + const AssetImage('assets/image.png', package: 'design_system'), + ), + {'assetName': 'assets/image.png', 'package': 'design_system'}, + ); + }); + + test('rejects invalid input', () { + final cases = { + 'empty asset name': {'assetName': ''}, + 'non-string asset name': {'assetName': 3}, + 'unknown key': {'assetName': 'assets/image.png', 'extra': true}, + }; + + for (final MapEntry(key: label, value: input) in cases.entries) { + expect(assetImageCodec.safeParse(input).isFail, isTrue, reason: label); + } + }); + + test('rejects encode for AssetImage with custom bundle', () { + final value = AssetImage( + 'assets/image.png', + bundle: NetworkAssetBundle(Uri.parse('https://example.com/')), + ); + + final result = assetImageCodec.safeEncode(value); + + expect(result.isFail, isTrue); + expect( + result.getError().toString(), + contains('AssetImage.bundle is not supported by assetImageCodec.'), + ); + }); + }); + + group('imageProviderCodec', () { + test('dispatches network input', () { + final value = imageProviderCodec.parse({ + 'type': 'network', + 'url': 'https://example.com/image.png', + })!; + + expect(value, isA()); + expect((value as NetworkImage).url, 'https://example.com/image.png'); + }); + + test('dispatches asset input', () { + final value = imageProviderCodec.parse({ + 'type': 'asset', + 'assetName': 'assets/image.png', + })!; + + expect(value, isA()); + expect((value as AssetImage).assetName, 'assets/image.png'); + }); + + test('rejects missing and unknown discriminator', () { + expect( + imageProviderCodec.safeParse({ + 'url': 'https://example.com/image.png', + }).isFail, + isTrue, + ); + expect( + imageProviderCodec.safeParse({ + 'type': 'file', + 'path': '/tmp/a.png', + }).isFail, + isTrue, + ); + }); + + test('encodes by runtime type', () { + final network = imageProviderCodec.encode( + const NetworkImage('https://example.com/image.png'), + ); + final asset = imageProviderCodec.encode( + const AssetImage('assets/image.png'), + ); + + expect(network, { + 'type': 'network', + 'url': 'https://example.com/image.png', + 'scale': 1.0, + 'headers': null, + 'webHtmlElementStrategy': 'never', + }); + expect(asset, { + 'type': 'asset', + 'assetName': 'assets/image.png', + 'package': null, + }); + expectJsonSafe(network); + expectJsonSafe(asset); + }); + + test('rejects unsupported runtime providers', () { + final unsupported = >[ + ResizeImage(const AssetImage('assets/image.png'), width: 16), + const ExactAssetImage('assets/image.png'), + ]; + + for (final value in unsupported) { + expect( + imageProviderCodec.safeEncode(value).isFail, + isTrue, + reason: value.runtimeType.toString(), + ); + } + }); + + test('JSON Schema includes branch const markers', () { + final schemaJson = jsonEncode(imageProviderCodec.toJsonSchema()); + + expect(schemaJson, contains('"const":"network"')); + expect(schemaJson, contains('"const":"asset"')); + }); + }); +} diff --git a/packages/flutter_codec/test/primitives/rect_test.dart b/packages/flutter_codec/test/primitives/rect_test.dart new file mode 100644 index 00000000..1a6da05b --- /dev/null +++ b/packages/flutter_codec/test/primitives/rect_test.dart @@ -0,0 +1,62 @@ +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('rectCodec decode', () { + test('decodes a {left, top, right, bottom} object', () { + expect( + rectCodec.parse({'left': 1, 'top': 2, 'right': 30, 'bottom': 40}), + const Rect.fromLTRB(1, 2, 30, 40), + ); + }); + + test('accepts integer coordinates as doubles', () { + expect( + rectCodec.parse({'left': 0, 'top': 0, 'right': 10, 'bottom': 10}), + const Rect.fromLTRB(0, 0, 10, 10), + ); + }); + }); + + group('rectCodec encode', () { + test('emits a canonical {left, top, right, bottom} map', () { + final encoded = rectCodec.encode(const Rect.fromLTRB(1, 2, 30, 40)); + expect(encoded, {'left': 1.0, 'top': 2.0, 'right': 30.0, 'bottom': 40.0}); + expectJsonSafe(encoded); + }); + + test('round-trips an arbitrary rect', () { + const rect = Rect.fromLTRB(-5.5, 12.25, 100, 0); + expect(rectCodec.parse(rectCodec.encode(rect)!), rect); + }); + }); + + group('rectCodec rejects invalid input', () { + const invalidCases = { + 'missing left': {'top': 0, 'right': 10, 'bottom': 10}, + 'missing bottom': {'left': 0, 'top': 0, 'right': 10}, + 'non-finite right': { + 'left': 0, + 'top': 0, + 'right': double.infinity, + 'bottom': 10, + }, + 'unknown key': { + 'left': 0, + 'top': 0, + 'right': 10, + 'bottom': 10, + 'width': 10, + }, + }; + + invalidCases.forEach((name, input) { + test('rejects $name', () { + expect(rectCodec.safeParse(input).isFail, isTrue); + }); + }); + }); +} From 453c78bbb878ffbcde615439db3953d8f4733862 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 21:14:15 -0400 Subject: [PATCH 33/53] feat(flutter_codec): add FontFeature and FontVariation codecs Both serialize as {tag, value} maps with a 4-character printable-ASCII tag pattern; FontFeature.value defaults to 1, matching the constructor. Wired into textStyleCodec so TextStyle now covers every JSON-safe constructor field. --- .../flutter_codec/lib/src/primitives.dart | 2 + .../lib/src/primitives/font_feature.dart | 33 +++++++ .../lib/src/primitives/font_variation.dart | 31 +++++++ .../flutter_codec/lib/src/text_style.dart | 21 +++-- .../test/primitives/font_feature_test.dart | 87 +++++++++++++++++++ .../test/primitives/font_variation_test.dart | 80 +++++++++++++++++ .../test/text_style/text_style_test.dart | 20 +++++ 7 files changed, 268 insertions(+), 6 deletions(-) create mode 100644 packages/flutter_codec/lib/src/primitives/font_feature.dart create mode 100644 packages/flutter_codec/lib/src/primitives/font_variation.dart create mode 100644 packages/flutter_codec/test/primitives/font_feature_test.dart create mode 100644 packages/flutter_codec/test/primitives/font_variation_test.dart diff --git a/packages/flutter_codec/lib/src/primitives.dart b/packages/flutter_codec/lib/src/primitives.dart index f41c1146..147c9754 100644 --- a/packages/flutter_codec/lib/src/primitives.dart +++ b/packages/flutter_codec/lib/src/primitives.dart @@ -2,6 +2,8 @@ export 'primitives/alignment.dart'; export 'primitives/border_radius.dart'; export 'primitives/color.dart'; export 'primitives/edge_insets.dart'; +export 'primitives/font_feature.dart'; +export 'primitives/font_variation.dart'; export 'primitives/font_weight.dart'; export 'primitives/locale.dart'; export 'primitives/offset.dart'; diff --git a/packages/flutter_codec/lib/src/primitives/font_feature.dart b/packages/flutter_codec/lib/src/primitives/font_feature.dart new file mode 100644 index 00000000..6460be4f --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/font_feature.dart @@ -0,0 +1,33 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' show FontFeature; + +import '../json_readers.dart'; + +// 4-character printable-ASCII tag pattern shared by OpenType feature names +// and variation axis identifiers. Flutter only asserts `.length == 4` at +// construction; the printable-ASCII range is tightened here because OpenType +// tags are by spec ASCII and the wire format should reject control-character +// payloads that the Dart constructor would silently accept. +const _tagPattern = r'^[\x20-\x7E]{4}$'; + +/// Codec for [FontFeature]. +/// +/// Serializes the public [FontFeature.feature] (a 4-character OpenType +/// feature tag, e.g. `"smcp"` or `"liga"`) and [FontFeature.value] (a +/// non-negative integer; defaults to `1`, the conventional "enable" value). +/// +/// Convenience constructors like [FontFeature.enable] or +/// [FontFeature.alternative] are not preserved on round-trip because they all +/// materialize as the same `(feature, value)` pair on the resulting +/// [FontFeature] instance. +final fontFeatureCodec = + Ack.object({ + 'feature': Ack.string().matches(_tagPattern), + 'value': Ack.integer().min(0).withDefault(1), + }).codec( + decode: (data) => FontFeature( + readValue(data, 'feature'), + readValue(data, 'value'), + ), + encode: (value) => {'feature': value.feature, 'value': value.value}, + ); diff --git a/packages/flutter_codec/lib/src/primitives/font_variation.dart b/packages/flutter_codec/lib/src/primitives/font_variation.dart new file mode 100644 index 00000000..80185f9c --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/font_variation.dart @@ -0,0 +1,31 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' show FontVariation; + +import '../json_readers.dart'; + +// 4-character printable-ASCII axis tag pattern. Flutter only asserts +// `.length == 4` at construction; see `font_feature.dart` for the rationale +// behind the tighter printable-ASCII check applied at the wire layer. +const _axisPattern = r'^[\x20-\x7E]{4}$'; + +/// Codec for [FontVariation]. +/// +/// Serializes the public [FontVariation.axis] (a 4-character OpenType +/// variation axis tag, e.g. `"wght"` or `"wdth"`) and [FontVariation.value] +/// (a [double]; the codec accepts any finite value, leaving the +/// [-32768, 32768) 16.16 fixed-point range check to the Flutter constructor). +/// +/// Convenience constructors like [FontVariation.weight] are not preserved on +/// round-trip because they all materialize as the same `(axis, value)` pair +/// on the resulting [FontVariation] instance. +final fontVariationCodec = + Ack.object({ + 'axis': Ack.string().matches(_axisPattern), + 'value': Ack.number(), + }).codec( + decode: (data) => FontVariation( + readValue(data, 'axis'), + readDouble(data, 'value'), + ), + encode: (value) => {'axis': value.axis, 'value': value.value}, + ); diff --git a/packages/flutter_codec/lib/src/text_style.dart b/packages/flutter_codec/lib/src/text_style.dart index 4be55006..32da7200 100644 --- a/packages/flutter_codec/lib/src/text_style.dart +++ b/packages/flutter_codec/lib/src/text_style.dart @@ -4,7 +4,9 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show Color, + FontFeature, FontStyle, + FontVariation, FontWeight, TextBaseline, TextDecoration, @@ -22,6 +24,8 @@ import 'enums.dart' textOverflowCodec; import 'json_readers.dart'; import 'primitives/color.dart' show colorCodec; +import 'primitives/font_feature.dart' show fontFeatureCodec; +import 'primitives/font_variation.dart' show fontVariationCodec; import 'primitives/font_weight.dart' show fontWeightCodec; import 'primitives/locale.dart' show localeCodec; import 'primitives/text_decoration.dart' show textDecorationCodec; @@ -32,16 +36,15 @@ import 'shadows.dart' show shadowCodec; /// Supported fields are the JSON-safe constructor parameters: colors, /// typography scalars, enum fields, [FontWeight], [ui.Locale], /// [TextStyle.shadows], [TextDecoration], [TextStyle.fontFamily], -/// [TextStyle.fontFamilyFallback], [TextStyle.package], and -/// [TextStyle.overflow]. +/// [TextStyle.fontFamilyFallback], [TextStyle.package], +/// [TextStyle.overflow], [TextStyle.fontFeatures], and +/// [TextStyle.fontVariations]. /// /// Unsupported fields are intentionally omitted: -/// * [TextStyle.foreground] and [TextStyle.background] are [Paint]`?`, which -/// is not JSON-safe. +/// * [TextStyle.foreground] and [TextStyle.background] are nullable [Paint] +/// values, which are not JSON-safe. /// * [TextStyle.debugLabel] is debug metadata and is excluded from /// [TextStyle] equality. -/// * [TextStyle.fontFeatures] and [TextStyle.fontVariations] are niche -/// typography fields reserved for a focused follow-up. final textStyleCodec = Ack.object({ 'inherit': Ack.boolean().withDefault(true), 'color': colorCodec.nullable().optional(), @@ -64,6 +67,8 @@ final textStyleCodec = Ack.object({ 'fontFamilyFallback': Ack.list(Ack.string()).nullable().optional(), 'package': Ack.string().nullable().optional(), 'overflow': textOverflowCodec.nullable().optional(), + 'fontFeatures': Ack.list(fontFeatureCodec).nullable().optional(), + 'fontVariations': Ack.list(fontVariationCodec).nullable().optional(), }).codec(decode: _decodeTextStyle, encode: _encodeTextStyle); TextStyle _decodeTextStyle(JsonMap data) { @@ -95,6 +100,8 @@ TextStyle _decodeTextStyle(JsonMap data) { fontFamilyFallback: readNullableList(data, 'fontFamilyFallback'), package: readNullableValue(data, 'package'), overflow: readNullableValue(data, 'overflow'), + fontFeatures: readNullableList(data, 'fontFeatures'), + fontVariations: readNullableList(data, 'fontVariations'), ); } @@ -123,6 +130,8 @@ JsonMap _encodeTextStyle(TextStyle value) { 'fontFamilyFallback': fontFamilyFields.fallback, 'package': fontFamilyFields.packageName, 'overflow': value.overflow, + 'fontFeatures': value.fontFeatures, + 'fontVariations': value.fontVariations, }; } diff --git a/packages/flutter_codec/test/primitives/font_feature_test.dart b/packages/flutter_codec/test/primitives/font_feature_test.dart new file mode 100644 index 00000000..d3c7832d --- /dev/null +++ b/packages/flutter_codec/test/primitives/font_feature_test.dart @@ -0,0 +1,87 @@ +import 'dart:convert'; +import 'dart:ui'; + +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('fontFeatureCodec decode', () { + test('decodes a feature tag with an explicit value', () { + expect( + fontFeatureCodec.parse({'feature': 'smcp', 'value': 1}), + const FontFeature('smcp', 1), + ); + }); + + test('defaults missing value to 1 (the enable convention)', () { + expect( + fontFeatureCodec.parse({'feature': 'liga'}), + const FontFeature('liga'), + ); + }); + + test('accepts non-default integer values', () { + expect( + fontFeatureCodec.parse({'feature': 'cv01', 'value': 3}), + const FontFeature('cv01', 3), + ); + }); + }); + + group('fontFeatureCodec encode', () { + test('emits the feature tag and value', () { + final encoded = fontFeatureCodec.encode(const FontFeature('smcp', 1)); + expect(encoded, {'feature': 'smcp', 'value': 1}); + expectJsonSafe(encoded); + }); + + test('round-trips named convenience constructors as (feature, value)', () { + final encoded = fontFeatureCodec.encode(FontFeature.alternative(2)); + expect(fontFeatureCodec.parse(encoded), FontFeature.alternative(2)); + }); + }); + + group('fontFeatureCodec rejects invalid input', () { + test('rejects a feature tag shorter than four characters', () { + expect( + fontFeatureCodec.safeParse({'feature': 'lig', 'value': 1}).isFail, + isTrue, + ); + }); + + test('rejects a feature tag longer than four characters', () { + expect( + fontFeatureCodec.safeParse({'feature': 'ligas', 'value': 1}).isFail, + isTrue, + ); + }); + + test('rejects negative values', () { + expect( + fontFeatureCodec.safeParse({'feature': 'smcp', 'value': -1}).isFail, + isTrue, + ); + }); + + test('rejects unknown keys', () { + expect( + fontFeatureCodec.safeParse({ + 'feature': 'smcp', + 'value': 1, + 'extra': true, + }).isFail, + isTrue, + ); + }); + }); + + group('fontFeatureCodec JSON Schema', () { + test('reflects the 4-character pattern and default value', () { + final schema = jsonEncode(fontFeatureCodec.toJsonSchema()); + expect(schema, contains(r'[\\x20-\\x7E]{4}')); + expect(schema, contains('"default":1')); + }); + }); +} diff --git a/packages/flutter_codec/test/primitives/font_variation_test.dart b/packages/flutter_codec/test/primitives/font_variation_test.dart new file mode 100644 index 00000000..640513a4 --- /dev/null +++ b/packages/flutter_codec/test/primitives/font_variation_test.dart @@ -0,0 +1,80 @@ +import 'dart:convert'; +import 'dart:ui'; + +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('fontVariationCodec decode', () { + test('decodes an axis tag and value', () { + expect( + fontVariationCodec.parse({'axis': 'wght', 'value': 600}), + const FontVariation('wght', 600), + ); + }); + + test('coerces integer JSON values to double on the value field', () { + // JSON sources emit `100` as int; FontVariation.value is double, and + // the codec must round-trip through the double constructor. + expect( + fontVariationCodec.parse({'axis': 'wdth', 'value': 100}), + const FontVariation('wdth', 100.0), + ); + }); + }); + + group('fontVariationCodec encode', () { + test('emits the axis tag and value', () { + final encoded = fontVariationCodec.encode( + const FontVariation('wght', 600), + ); + expect(encoded, {'axis': 'wght', 'value': 600.0}); + expectJsonSafe(encoded); + }); + + test('round-trips named convenience constructors as (axis, value)', () { + final encoded = fontVariationCodec.encode(FontVariation.weight(500)); + expect(fontVariationCodec.parse(encoded), FontVariation.weight(500)); + }); + }); + + group('fontVariationCodec rejects invalid input', () { + test('rejects an axis tag shorter than four characters', () { + expect( + fontVariationCodec.safeParse({'axis': 'wgt', 'value': 600}).isFail, + isTrue, + ); + }); + + test('rejects an axis tag longer than four characters', () { + expect( + fontVariationCodec.safeParse({'axis': 'wghtx', 'value': 600}).isFail, + isTrue, + ); + }); + + test('rejects unknown keys', () { + expect( + fontVariationCodec.safeParse({ + 'axis': 'wght', + 'value': 600, + 'extra': true, + }).isFail, + isTrue, + ); + }); + + test('rejects a missing value', () { + expect(fontVariationCodec.safeParse({'axis': 'wght'}).isFail, isTrue); + }); + }); + + group('fontVariationCodec JSON Schema', () { + test('reflects the 4-character pattern on axis', () { + final schema = jsonEncode(fontVariationCodec.toJsonSchema()); + expect(schema, contains(r'[\\x20-\\x7E]{4}')); + }); + }); +} diff --git a/packages/flutter_codec/test/text_style/text_style_test.dart b/packages/flutter_codec/test/text_style/text_style_test.dart index 50b5dd2a..021400cb 100644 --- a/packages/flutter_codec/test/text_style/text_style_test.dart +++ b/packages/flutter_codec/test/text_style/text_style_test.dart @@ -43,6 +43,14 @@ void main() { 'fontFamilyFallback': ['Roboto', 'Arial'], 'package': 'my_package', 'overflow': 'ellipsis', + 'fontFeatures': [ + {'feature': 'smcp', 'value': 1}, + {'feature': 'liga'}, + ], + 'fontVariations': [ + {'axis': 'wght', 'value': 600}, + {'axis': 'wdth', 'value': 100}, + ], }), TextStyle( color: const Color(0xFF2196F3), @@ -74,6 +82,11 @@ void main() { fontFamilyFallback: const ['Roboto', 'Arial'], package: 'my_package', overflow: TextOverflow.ellipsis, + fontFeatures: const [FontFeature('smcp'), FontFeature('liga')], + fontVariations: const [ + FontVariation('wght', 600), + FontVariation('wdth', 100), + ], ), ); }); @@ -105,6 +118,8 @@ void main() { 'fontFamilyFallback': null, 'package': null, 'overflow': null, + 'fontFeatures': null, + 'fontVariations': null, }); expectJsonSafe(encoded); }); @@ -141,6 +156,11 @@ void main() { fontFamilyFallback: const ['Roboto', 'Arial'], package: 'my_package', overflow: TextOverflow.ellipsis, + fontFeatures: const [FontFeature('smcp'), FontFeature('cv01', 3)], + fontVariations: const [ + FontVariation('wght', 500), + FontVariation('slnt', -10), + ], ); final encoded = textStyleCodec.encode(original); From 257a8d6e38efc3a56831a301353546c82558c767 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 26 May 2026 21:32:07 -0400 Subject: [PATCH 34/53] feat(flutter_codec): add ShapeBorder family + ShapeDecoration + Decoration union shapeBorderCodec discriminates the five concrete OutlinedBorder subtypes (CircleBorder, StadiumBorder, RoundedRectangleBorder, BeveledRectangleBorder, ContinuousRectangleBorder) via the 'type' key. The three rectangle-with-radius branches share a single private object schema, so the wire shape is defined exactly once. shapeDecorationCodec composes the JSON-safe ShapeDecoration constructor fields and leaves the color-XOR-gradient assert to Flutter's constructor. decorationCodec unions BoxDecoration and ShapeDecoration under the abstract Decoration type, mirroring the gradientCodec / imageProviderCodec discriminated pattern. OvalBorder (which extends CircleBorder) is documented as round-tripping to a plain CircleBorder. Also consolidates box_decoration.dart, shape_decoration.dart, and the new decoration union into a single decorations.dart, matching how gradients and image providers each live in one file with their union. --- packages/flutter_codec/lib/flutter_codec.dart | 3 +- .../flutter_codec/lib/src/box_decoration.dart | 73 ------- .../flutter_codec/lib/src/decorations.dart | 151 ++++++++++++++ .../flutter_codec/lib/src/shape_borders.dart | 167 +++++++++++++++ .../decorations_test.dart} | 192 ++++++++++++++++++ .../shape_borders/shape_borders_test.dart | 171 ++++++++++++++++ 6 files changed, 683 insertions(+), 74 deletions(-) delete mode 100644 packages/flutter_codec/lib/src/box_decoration.dart create mode 100644 packages/flutter_codec/lib/src/decorations.dart create mode 100644 packages/flutter_codec/lib/src/shape_borders.dart rename packages/flutter_codec/test/{box_decoration/box_decoration_test.dart => decorations/decorations_test.dart} (50%) create mode 100644 packages/flutter_codec/test/shape_borders/shape_borders_test.dart diff --git a/packages/flutter_codec/lib/flutter_codec.dart b/packages/flutter_codec/lib/flutter_codec.dart index 4774cb4d..c135bca0 100644 --- a/packages/flutter_codec/lib/flutter_codec.dart +++ b/packages/flutter_codec/lib/flutter_codec.dart @@ -2,11 +2,12 @@ library; export 'src/borders.dart'; -export 'src/box_decoration.dart'; export 'src/decoration_image.dart'; +export 'src/decorations.dart'; export 'src/enums.dart'; export 'src/gradients.dart'; export 'src/image_providers.dart'; export 'src/primitives.dart'; export 'src/shadows.dart'; +export 'src/shape_borders.dart'; export 'src/text_style.dart'; diff --git a/packages/flutter_codec/lib/src/box_decoration.dart b/packages/flutter_codec/lib/src/box_decoration.dart deleted file mode 100644 index b002ed61..00000000 --- a/packages/flutter_codec/lib/src/box_decoration.dart +++ /dev/null @@ -1,73 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' - show - BlendMode, - BorderRadiusGeometry, - BoxBorder, - BoxDecoration, - BoxShadow, - BoxShape, - Color, - DecorationImage, - Gradient; - -import 'borders.dart' show boxBorderCodec; -import 'decoration_image.dart' show decorationImageCodec; -import 'enums.dart' show blendModeCodec, boxShapeCodec; -import 'gradients.dart' show gradientCodec; -import 'json_readers.dart'; -import 'primitives/border_radius.dart' show borderRadiusGeometryCodec; -import 'primitives/color.dart' show colorCodec; -import 'shadows.dart' show boxShadowCodec; - -/// Codec for [BoxDecoration]. -/// -/// Composes every JSON-safe constructor field: `color` ([colorCodec]), -/// `image` ([decorationImageCodec]), `border` ([boxBorderCodec]), -/// `borderRadius` ([borderRadiusGeometryCodec]), `boxShadow` -/// ([boxShadowCodec]), `gradient` ([gradientCodec]), `backgroundBlendMode` -/// ([blendModeCodec]), and `shape` ([boxShapeCodec], default -/// [BoxShape.rectangle]). -final boxDecorationCodec = - Ack.object({ - 'color': colorCodec.nullable().optional(), - 'image': decorationImageCodec.nullable().optional(), - 'border': boxBorderCodec.nullable().optional(), - 'borderRadius': borderRadiusGeometryCodec.nullable().optional(), - 'boxShadow': Ack.list(boxShadowCodec).nullable().optional(), - 'gradient': gradientCodec.nullable().optional(), - 'backgroundBlendMode': blendModeCodec.nullable().optional(), - 'shape': boxShapeCodec.withDefault(BoxShape.rectangle), - }).codec( - decode: _decodeBoxDecoration, - encode: _encodeBoxDecoration, - ); - -BoxDecoration _decodeBoxDecoration(JsonMap data) { - return BoxDecoration( - color: readNullableValue(data, 'color'), - image: readNullableValue(data, 'image'), - border: readNullableValue(data, 'border'), - borderRadius: readNullableValue(data, 'borderRadius'), - boxShadow: readNullableList(data, 'boxShadow'), - gradient: readNullableValue(data, 'gradient'), - backgroundBlendMode: readNullableValue( - data, - 'backgroundBlendMode', - ), - shape: readValue(data, 'shape'), - ); -} - -JsonMap _encodeBoxDecoration(BoxDecoration value) { - return { - 'color': value.color, - 'image': value.image, - 'border': value.border, - 'borderRadius': value.borderRadius, - 'boxShadow': value.boxShadow, - 'gradient': value.gradient, - 'backgroundBlendMode': value.backgroundBlendMode, - 'shape': value.shape, - }; -} diff --git a/packages/flutter_codec/lib/src/decorations.dart b/packages/flutter_codec/lib/src/decorations.dart new file mode 100644 index 00000000..dc027cb7 --- /dev/null +++ b/packages/flutter_codec/lib/src/decorations.dart @@ -0,0 +1,151 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show + BlendMode, + BorderRadiusGeometry, + BoxBorder, + BoxDecoration, + BoxShadow, + BoxShape, + Color, + Decoration, + DecorationImage, + Gradient, + ShapeBorder, + ShapeDecoration; + +import 'borders.dart' show boxBorderCodec; +import 'decoration_image.dart' show decorationImageCodec; +import 'enums.dart' show blendModeCodec, boxShapeCodec; +import 'gradients.dart' show gradientCodec; +import 'json_readers.dart'; +import 'primitives/border_radius.dart' show borderRadiusGeometryCodec; +import 'primitives/color.dart' show colorCodec; +import 'shadows.dart' show boxShadowCodec; +import 'shape_borders.dart' show shapeBorderCodec; + +/// Codec for [BoxDecoration]. +/// +/// Composes every JSON-safe constructor field: `color` ([colorCodec]), +/// `image` ([decorationImageCodec]), `border` ([boxBorderCodec]), +/// `borderRadius` ([borderRadiusGeometryCodec]), `boxShadow` +/// ([boxShadowCodec]), `gradient` ([gradientCodec]), `backgroundBlendMode` +/// ([blendModeCodec]), and `shape` ([boxShapeCodec], default +/// [BoxShape.rectangle]). The `"type"` discriminator is added by +/// [decorationCodec] when this codec is used as one of its branches. +final boxDecorationCodec = + Ack.object({ + 'color': colorCodec.nullable().optional(), + 'image': decorationImageCodec.nullable().optional(), + 'border': boxBorderCodec.nullable().optional(), + 'borderRadius': borderRadiusGeometryCodec.nullable().optional(), + 'boxShadow': Ack.list(boxShadowCodec).nullable().optional(), + 'gradient': gradientCodec.nullable().optional(), + 'backgroundBlendMode': blendModeCodec.nullable().optional(), + 'shape': boxShapeCodec.withDefault(BoxShape.rectangle), + }).codec( + decode: _decodeBoxDecoration, + encode: _encodeBoxDecoration, + ); + +BoxDecoration _decodeBoxDecoration(JsonMap data) { + return BoxDecoration( + color: readNullableValue(data, 'color'), + image: readNullableValue(data, 'image'), + border: readNullableValue(data, 'border'), + borderRadius: readNullableValue(data, 'borderRadius'), + boxShadow: readNullableList(data, 'boxShadow'), + gradient: readNullableValue(data, 'gradient'), + backgroundBlendMode: readNullableValue( + data, + 'backgroundBlendMode', + ), + shape: readValue(data, 'shape'), + ); +} + +JsonMap _encodeBoxDecoration(BoxDecoration value) { + return { + 'color': value.color, + 'image': value.image, + 'border': value.border, + 'borderRadius': value.borderRadius, + 'boxShadow': value.boxShadow, + 'gradient': value.gradient, + 'backgroundBlendMode': value.backgroundBlendMode, + 'shape': value.shape, + }; +} + +/// Codec for [ShapeDecoration]. +/// +/// Composes every JSON-safe constructor field: `color` ([colorCodec]), +/// `image` ([decorationImageCodec]), `gradient` ([gradientCodec]), `shadows` +/// ([boxShadowCodec]), and the required `shape` ([shapeBorderCodec]). Unset +/// optional fields are emitted as explicit nulls for round-trip stability, +/// matching the canonical-map convention used by [boxDecorationCodec]. The +/// `"type"` discriminator is added by [decorationCodec] when this codec is +/// used as one of its branches. +/// +/// [ShapeDecoration] asserts that `color` and `gradient` cannot both be +/// non-null; this codec leaves that check to the constructor. +final shapeDecorationCodec = + Ack.object({ + 'color': colorCodec.nullable().optional(), + 'image': decorationImageCodec.nullable().optional(), + 'gradient': gradientCodec.nullable().optional(), + 'shadows': Ack.list(boxShadowCodec).nullable().optional(), + 'shape': shapeBorderCodec, + }).codec( + decode: _decodeShapeDecoration, + encode: _encodeShapeDecoration, + ); + +ShapeDecoration _decodeShapeDecoration(JsonMap data) { + return ShapeDecoration( + color: readNullableValue(data, 'color'), + image: readNullableValue(data, 'image'), + gradient: readNullableValue(data, 'gradient'), + shadows: readNullableList(data, 'shadows'), + shape: readValue(data, 'shape'), + ); +} + +JsonMap _encodeShapeDecoration(ShapeDecoration value) { + return { + 'color': value.color, + 'image': value.image, + 'gradient': value.gradient, + 'shadows': value.shadows, + 'shape': value.shape, + }; +} + +/// Codec for the abstract [Decoration] type, discriminated by `"type"`. +/// +/// * `"box"` → [BoxDecoration] via [boxDecorationCodec] +/// * `"shape"` → [ShapeDecoration] via [shapeDecorationCodec] +/// +/// The `"type"` discriminator is synthesized by the union: encoding adds the +/// key automatically, and parsing uses it to select the branch. Each +/// underlying codec ([boxDecorationCodec], [shapeDecorationCodec]) remains +/// usable on its own without a `"type"` field — unlike the gradient family, +/// the decoration branches do not embed a `"type"` literal in their standalone +/// schemas, so the discriminator only exists at the union layer. +/// +/// Other [Decoration] subtypes ([FlutterLogoDecoration], custom decorations) +/// are intentionally not covered — they either lack a portable JSON shape or +/// belong outside the painting layer. +final decorationCodec = Ack.discriminated( + discriminatorKey: 'type', + schemas: { + 'box': boxDecorationCodec.codec( + decode: (value) => value, + encode: (value) => value as BoxDecoration, + ), + 'shape': shapeDecorationCodec.codec( + decode: (value) => value, + encode: (value) => value as ShapeDecoration, + ), + }, +); diff --git a/packages/flutter_codec/lib/src/shape_borders.dart b/packages/flutter_codec/lib/src/shape_borders.dart new file mode 100644 index 00000000..0d80c933 --- /dev/null +++ b/packages/flutter_codec/lib/src/shape_borders.dart @@ -0,0 +1,167 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show + BeveledRectangleBorder, + BorderRadius, + BorderRadiusGeometry, + BorderSide, + CircleBorder, + ContinuousRectangleBorder, + OutlinedBorder, + RoundedRectangleBorder, + ShapeBorder, + StadiumBorder; + +import 'borders.dart' show borderSideCodec; +import 'json_readers.dart'; +import 'primitives/border_radius.dart' show borderRadiusGeometryCodec; + +// Shared `{side, borderRadius}` schema for the three corner-rounded +// rectangular border codecs ([roundedRectangleBorderCodec], +// [beveledRectangleBorderCodec], [continuousRectangleBorderCodec]). They +// accept the same JSON payload and differ only in the runtime [ShapeBorder] +// subtype they decode to. +final _rectangleBorderSchema = Ack.object({ + 'side': borderSideCodec.withDefault(BorderSide.none), + 'borderRadius': borderRadiusGeometryCodec.withDefault(BorderRadius.zero), +}); + +/// Codec for [CircleBorder]. +/// +/// Composes [borderSideCodec] for [CircleBorder.side] and a non-negative +/// `eccentricity` in `[0, 1]` (default `0.0`, a perfect circle; `1.0` is a +/// fully flattened ellipse — matching the bounds Flutter's constructor +/// asserts). The `"type"` discriminator is added by [shapeBorderCodec] when +/// this codec is used as one of its branches. +final circleBorderCodec = + Ack.object({ + 'side': borderSideCodec.withDefault(BorderSide.none), + 'eccentricity': Ack.number().min(0).max(1).withDefault(0.0), + }).codec( + decode: (data) => CircleBorder( + side: readValue(data, 'side'), + eccentricity: readDouble(data, 'eccentricity'), + ), + encode: (value) => { + 'side': value.side, + 'eccentricity': value.eccentricity, + }, + ); + +/// Codec for [StadiumBorder]. +/// +/// Composes [borderSideCodec] for [StadiumBorder.side]. The `"type"` +/// discriminator is added by [shapeBorderCodec] when this codec is used as +/// one of its branches. +final stadiumBorderCodec = + Ack.object({ + 'side': borderSideCodec.withDefault(BorderSide.none), + }).codec( + decode: (data) => + StadiumBorder(side: readValue(data, 'side')), + encode: (value) => {'side': value.side}, + ); + +/// Codec for [RoundedRectangleBorder]. +/// +/// Composes [borderSideCodec] for [RoundedRectangleBorder.side] and +/// [borderRadiusGeometryCodec] for [RoundedRectangleBorder.borderRadius] +/// (default [BorderRadius.zero], matching the constructor). The `"type"` +/// discriminator is added by [shapeBorderCodec] when this codec is used as +/// one of its branches. +final roundedRectangleBorderCodec = _rectangleBorderSchema + .codec( + decode: (data) => RoundedRectangleBorder( + side: readValue(data, 'side'), + borderRadius: readValue(data, 'borderRadius'), + ), + encode: (value) => { + 'side': value.side, + 'borderRadius': value.borderRadius, + }, + ); + +/// Codec for [BeveledRectangleBorder]. +/// +/// Shares the `{side, borderRadius}` shape with [roundedRectangleBorderCodec] +/// and [continuousRectangleBorderCodec]; the runtime [ShapeBorder] subtype is +/// the only difference. The `"type"` discriminator is added by +/// [shapeBorderCodec] when this codec is used as one of its branches. +final beveledRectangleBorderCodec = _rectangleBorderSchema + .codec( + decode: (data) => BeveledRectangleBorder( + side: readValue(data, 'side'), + borderRadius: readValue(data, 'borderRadius'), + ), + encode: (value) => { + 'side': value.side, + 'borderRadius': value.borderRadius, + }, + ); + +/// Codec for [ContinuousRectangleBorder]. +/// +/// Shares the `{side, borderRadius}` shape with [roundedRectangleBorderCodec] +/// and [beveledRectangleBorderCodec]; the runtime [ShapeBorder] subtype is +/// the only difference. The `"type"` discriminator is added by +/// [shapeBorderCodec] when this codec is used as one of its branches. +final continuousRectangleBorderCodec = _rectangleBorderSchema + .codec( + decode: (data) => ContinuousRectangleBorder( + side: readValue(data, 'side'), + borderRadius: readValue(data, 'borderRadius'), + ), + encode: (value) => { + 'side': value.side, + 'borderRadius': value.borderRadius, + }, + ); + +/// Codec for JSON-safe [ShapeBorder] values, discriminated by `"type"`. +/// +/// Covers the five concrete [OutlinedBorder] subtypes Flutter exposes from +/// `package:flutter/painting.dart`: +/// +/// * `"circle"` → [CircleBorder] +/// * `"stadium"` → [StadiumBorder] +/// * `"roundedRectangle"` → [RoundedRectangleBorder] +/// * `"beveledRectangle"` → [BeveledRectangleBorder] +/// * `"continuousRectangle"` → [ContinuousRectangleBorder] +/// +/// [InputBorder] subtypes (Material), the newer [StarBorder] and +/// [LinearBorder] shapes, and `RoundedSuperellipseBorder` are intentionally +/// not covered here — they belong to separate plans because their +/// constructor surfaces are materially different. +/// +/// `OvalBorder` extends [CircleBorder], so it round-trips as a +/// [CircleBorder] (the runtime subtype is lost). Its painted output is +/// equivalent to `CircleBorder(eccentricity: 1.0)`, but callers that depend +/// on the precise runtime type should handle that conversion themselves. +/// +/// Custom user-defined [ShapeBorder] subtypes are rejected on encode rather +/// than guessing a non-portable JSON shape. +final shapeBorderCodec = Ack.discriminated( + discriminatorKey: 'type', + schemas: { + 'circle': circleBorderCodec.codec( + decode: (value) => value, + encode: (value) => value as CircleBorder, + ), + 'stadium': stadiumBorderCodec.codec( + decode: (value) => value, + encode: (value) => value as StadiumBorder, + ), + 'roundedRectangle': roundedRectangleBorderCodec.codec( + decode: (value) => value, + encode: (value) => value as RoundedRectangleBorder, + ), + 'beveledRectangle': beveledRectangleBorderCodec.codec( + decode: (value) => value, + encode: (value) => value as BeveledRectangleBorder, + ), + 'continuousRectangle': continuousRectangleBorderCodec.codec( + decode: (value) => value, + encode: (value) => value as ContinuousRectangleBorder, + ), + }, +); diff --git a/packages/flutter_codec/test/box_decoration/box_decoration_test.dart b/packages/flutter_codec/test/decorations/decorations_test.dart similarity index 50% rename from packages/flutter_codec/test/box_decoration/box_decoration_test.dart rename to packages/flutter_codec/test/decorations/decorations_test.dart index e0af81ae..cd63731e 100644 --- a/packages/flutter_codec/test/box_decoration/box_decoration_test.dart +++ b/packages/flutter_codec/test/decorations/decorations_test.dart @@ -10,6 +10,8 @@ const _redBlueHex = ['#FF0000', '#0000FF']; const _redBlue = [Color(0xFFFF0000), Color(0xFF0000FF)]; void main() { + // --- boxDecorationCodec ---------------------------------------------------- + group('boxDecorationCodec decode', () { test('decodes an empty object as the default BoxDecoration', () { expect(boxDecorationCodec.parse({}), const BoxDecoration()); @@ -192,4 +194,194 @@ void main() { expect(schema, contains(r'^#[0-9A-Fa-f]{6}$')); }); }); + + // --- shapeDecorationCodec -------------------------------------------------- + + group('shapeDecorationCodec decode', () { + test('decodes a minimal ShapeDecoration with just a shape', () { + expect( + shapeDecorationCodec.parse({ + 'shape': {'type': 'circle'}, + }), + const ShapeDecoration(shape: CircleBorder()), + ); + }); + + test('decodes a full ShapeDecoration', () { + // ShapeDecoration asserts color XOR gradient — exercise the gradient + // branch here; color-only is exercised by the encode round-trip below. + final decoded = shapeDecorationCodec.parse({ + 'gradient': {'type': 'linear', 'colors': _redBlueHex}, + 'shadows': [ + { + 'color': '#55000000', + 'offset': {'x': 1, 'y': 2}, + 'blurRadius': 3, + }, + ], + 'shape': {'type': 'roundedRectangle', 'borderRadius': 8}, + }); + + expect( + decoded, + ShapeDecoration( + gradient: const LinearGradient(colors: _redBlue), + shadows: const [ + BoxShadow( + color: Color(0x55000000), + offset: Offset(1, 2), + blurRadius: 3, + ), + ], + shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)), + ), + ); + }); + }); + + group('shapeDecorationCodec encode', () { + test('emits a canonical map with explicit nulls for unset fields', () { + final encoded = shapeDecorationCodec.encode( + const ShapeDecoration(shape: CircleBorder()), + ); + + expect(encoded, { + 'color': null, + 'image': null, + 'gradient': null, + 'shadows': null, + // Nested codecs re-encode to JSON, so the shape arrives as its + // canonical map form (including the discriminator), not as the + // runtime CircleBorder instance. + 'shape': {'type': 'circle', 'side': 'none', 'eccentricity': 0.0}, + }); + expectJsonSafe(encoded); + }); + + test('round-trips a populated ShapeDecoration', () { + final original = ShapeDecoration( + color: const Color(0xFF2196F3), + shadows: const [ + BoxShadow( + color: Color(0x55000000), + offset: Offset(1, 2), + blurRadius: 3, + ), + ], + shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)), + ); + + final encoded = shapeDecorationCodec.encode(original); + expect(shapeDecorationCodec.parse(encoded), original); + expectJsonSafe(encoded); + }); + }); + + group('shapeDecorationCodec rejects invalid input', () { + test('rejects a missing required shape', () { + expect(shapeDecorationCodec.safeParse({}).isFail, isTrue); + }); + + test('rejects an unknown shape discriminator', () { + expect( + shapeDecorationCodec.safeParse({ + 'shape': {'type': 'oval'}, + }).isFail, + isTrue, + ); + }); + + test('rejects unknown keys', () { + expect( + shapeDecorationCodec.safeParse({ + 'shape': {'type': 'circle'}, + 'foo': true, + }).isFail, + isTrue, + ); + }); + }); + + // --- decorationCodec (union) ---------------------------------------------- + + group('decorationCodec decode', () { + test('parses {type: box, ...} as a BoxDecoration', () { + final decoded = decorationCodec.parse({ + 'type': 'box', + 'color': '#2196F3', + }); + expect(decoded, isA()); + expect((decoded as BoxDecoration).color, const Color(0xFF2196F3)); + }); + + test('parses {type: shape, ...} as a ShapeDecoration', () { + final decoded = decorationCodec.parse({ + 'type': 'shape', + 'shape': {'type': 'circle'}, + }); + expect(decoded, isA()); + expect((decoded as ShapeDecoration).shape, const CircleBorder()); + }); + }); + + group('decorationCodec encode', () { + test('emits {type: box, ...} for a BoxDecoration', () { + final encoded = + decorationCodec.encode(const BoxDecoration()) as Map; + expect(encoded['type'], 'box'); + expect(encoded.containsKey('color'), isTrue); + expect(encoded.containsKey('shape'), isTrue); + expectJsonSafe(encoded); + }); + + test('emits {type: shape, ...} for a ShapeDecoration', () { + final encoded = + decorationCodec.encode(const ShapeDecoration(shape: CircleBorder())) + as Map; + expect(encoded['type'], 'shape'); + expect(encoded['shape'], { + 'type': 'circle', + 'side': 'none', + 'eccentricity': 0.0, + }); + expectJsonSafe(encoded); + }); + + test('round-trips a BoxDecoration through the union', () { + final original = const BoxDecoration( + color: Color(0xFF2196F3), + shape: BoxShape.circle, + ); + expect(decorationCodec.parse(decorationCodec.encode(original)), original); + }); + + test('round-trips a ShapeDecoration through the union', () { + final original = ShapeDecoration( + color: const Color(0xFF2196F3), + shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)), + ); + expect(decorationCodec.parse(decorationCodec.encode(original)), original); + }); + }); + + group('decorationCodec rejects invalid input', () { + test('rejects an unknown discriminator', () { + expect( + decorationCodec.safeParse({'type': 'flutter-logo'}).isFail, + isTrue, + ); + }); + + test('rejects a missing discriminator', () { + expect(decorationCodec.safeParse({}).isFail, isTrue); + }); + }); + + group('decorationCodec JSON Schema', () { + test('surfaces both discriminator branches', () { + final schema = jsonEncode(decorationCodec.toJsonSchema()); + expect(schema, contains('"box"')); + expect(schema, contains('"shape"')); + }); + }); } diff --git a/packages/flutter_codec/test/shape_borders/shape_borders_test.dart b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart new file mode 100644 index 00000000..91315b85 --- /dev/null +++ b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart @@ -0,0 +1,171 @@ +import 'dart:convert'; + +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('circleBorderCodec', () { + test('decodes an empty object as the default CircleBorder', () { + expect(circleBorderCodec.parse({}), const CircleBorder()); + }); + + test('decodes side and eccentricity', () { + expect( + circleBorderCodec.parse({ + 'side': {'color': '#FF0000', 'width': 2}, + 'eccentricity': 0.5, + }), + CircleBorder( + side: const BorderSide(color: Color(0xFFFF0000), width: 2), + eccentricity: 0.5, + ), + ); + }); + + test('encode emits the canonical map with both fields', () { + final encoded = circleBorderCodec.encode(const CircleBorder()); + expect(encoded, {'side': 'none', 'eccentricity': 0.0}); + expectJsonSafe(encoded); + }); + + test('rejects eccentricity outside [0, 1]', () { + expect(circleBorderCodec.safeParse({'eccentricity': 1.5}).isFail, isTrue); + expect( + circleBorderCodec.safeParse({'eccentricity': -0.1}).isFail, + isTrue, + ); + }); + }); + + group('stadiumBorderCodec', () { + test('decodes an empty object as the default StadiumBorder', () { + expect(stadiumBorderCodec.parse({}), const StadiumBorder()); + }); + + test('round-trips a sided StadiumBorder', () { + final original = const StadiumBorder( + side: BorderSide(color: Color(0xFFFF0000), width: 3), + ); + expect( + stadiumBorderCodec.parse(stadiumBorderCodec.encode(original)), + original, + ); + }); + }); + + group('roundedRectangleBorderCodec', () { + test('decodes an empty object as the default RoundedRectangleBorder', () { + expect( + roundedRectangleBorderCodec.parse({}), + const RoundedRectangleBorder(), + ); + }); + + test('round-trips side and borderRadius', () { + final original = RoundedRectangleBorder( + side: const BorderSide(color: Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(12), + ); + expect( + roundedRectangleBorderCodec.parse( + roundedRectangleBorderCodec.encode(original), + ), + original, + ); + }); + }); + + group('beveledRectangleBorderCodec / continuousRectangleBorderCodec', () { + test('each decodes its empty default and round-trips', () { + expect( + beveledRectangleBorderCodec.parse({}), + const BeveledRectangleBorder(), + ); + expect( + continuousRectangleBorderCodec.parse({}), + const ContinuousRectangleBorder(), + ); + + final beveled = BeveledRectangleBorder( + borderRadius: BorderRadius.circular(4), + ); + expect( + beveledRectangleBorderCodec.parse( + beveledRectangleBorderCodec.encode(beveled), + ), + beveled, + ); + + final continuous = ContinuousRectangleBorder( + borderRadius: BorderRadius.circular(4), + ); + expect( + continuousRectangleBorderCodec.parse( + continuousRectangleBorderCodec.encode(continuous), + ), + continuous, + ); + }); + }); + + group('shapeBorderCodec', () { + test('decodes each discriminator value to the matching ShapeBorder', () { + expect(shapeBorderCodec.parse({'type': 'circle'}), const CircleBorder()); + expect( + shapeBorderCodec.parse({'type': 'stadium'}), + const StadiumBorder(), + ); + expect( + shapeBorderCodec.parse({'type': 'roundedRectangle'}), + const RoundedRectangleBorder(), + ); + expect( + shapeBorderCodec.parse({'type': 'beveledRectangle'}), + const BeveledRectangleBorder(), + ); + expect( + shapeBorderCodec.parse({'type': 'continuousRectangle'}), + const ContinuousRectangleBorder(), + ); + }); + + test('encode dispatches by runtime ShapeBorder subtype', () { + expect(shapeBorderCodec.encode(const CircleBorder()), { + 'type': 'circle', + 'side': 'none', + 'eccentricity': 0.0, + }); + expect(shapeBorderCodec.encode(const StadiumBorder()), { + 'type': 'stadium', + 'side': 'none', + }); + final rounded = shapeBorderCodec.encode(const RoundedRectangleBorder()); + expect(rounded, containsPair('type', 'roundedRectangle')); + expect(rounded, containsPair('side', 'none')); + }); + + test('rejects an unknown discriminator', () { + expect(shapeBorderCodec.safeParse({'type': 'oval'}).isFail, isTrue); + }); + + test('rejects a missing discriminator', () { + expect(shapeBorderCodec.safeParse({}).isFail, isTrue); + }); + + test('JSON Schema surfaces all five discriminator branches', () { + final schema = jsonEncode(shapeBorderCodec.toJsonSchema()); + for (final value in const [ + 'circle', + 'stadium', + 'roundedRectangle', + 'beveledRectangle', + 'continuousRectangle', + ]) { + expect(schema, contains('"$value"')); + } + }); + }); +} From a7fffdfb9fccba44789970ac93a99f5ddedf2ea9 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 27 May 2026 10:03:55 -0400 Subject: [PATCH 35/53] docs(flutter_codec): rewrite README with coverage table and seed CHANGELOG Replaces the stale README (which incorrectly said BoxDecoration.image was deferred) with a coverage table grouped by family, a quick example, the discriminated-union summary, an intentionally-excluded list, and a short roadmap. Adds a CHANGELOG.md seeded with the 0.1.0 release scope so pub.dev renders a populated Changelog tab. No code or schema changes. --- packages/flutter_codec/CHANGELOG.md | 33 ++++++++ packages/flutter_codec/README.md | 117 ++++++++++++++++++++++++++-- 2 files changed, 142 insertions(+), 8 deletions(-) create mode 100644 packages/flutter_codec/CHANGELOG.md diff --git a/packages/flutter_codec/CHANGELOG.md b/packages/flutter_codec/CHANGELOG.md new file mode 100644 index 00000000..453302c0 --- /dev/null +++ b/packages/flutter_codec/CHANGELOG.md @@ -0,0 +1,33 @@ +# Changelog + +## 0.1.0 + +Initial release. JSON value codecs for Flutter's painting layer, built on +[`ack`](../ack/README.md). + +- **Primitives**: `Color`, `Offset`, `Radius`, `Rect`, `Alignment` / + `AlignmentDirectional` / `AlignmentGeometry`, `EdgeInsets` / + `EdgeInsetsDirectional` / `EdgeInsetsGeometry`, `BorderRadius` / + `BorderRadiusDirectional` / `BorderRadiusGeometry`, `FontWeight`, + `FontFeature`, `FontVariation`, `TextDecoration`, `Locale`. +- **Enums**: 30+ painting / rendering / widget enums in a single + `lib/src/enums.dart` (e.g. `blendModeCodec`, `boxShapeCodec`, + `tileModeCodec`, `fontStyleCodec`). +- **Borders**: `BorderSide`, `Border`, `BorderDirectional`, `BoxBorder`, + `StrokeAlign`. +- **Shape borders** (discriminated by `"type"`): `CircleBorder`, + `StadiumBorder`, `RoundedRectangleBorder`, `BeveledRectangleBorder`, + `ContinuousRectangleBorder` → `ShapeBorder`. +- **Shadows**: `Shadow`, `BoxShadow`. +- **Gradients** (discriminated by `"type"`): `LinearGradient`, + `RadialGradient`, `SweepGradient` → `Gradient`. +- **Image providers** (discriminated by `"type"`): `NetworkImage`, + `AssetImage` → `ImageProvider`. +- **Decoration image**: `DecorationImage` (composes `imageProviderCodec`, + `rectCodec`, and the relevant enum codecs). +- **Text style**: `TextStyle` (including `fontFeatures` and `fontVariations` + lists). +- **Decorations** (discriminated by `"type"`): `BoxDecoration`, + `ShapeDecoration` → `Decoration`. + +Every codec exposes `.parse`, `.safeParse`, `.encode`, and `.toJsonSchema`. diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index df649ee8..88060b44 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -1,12 +1,113 @@ # flutter_codec -Flutter value codecs built on ACK schemas. +JSON value codecs for Flutter's painting layer, built on +[`ack`](../ack/README.md). -Includes enum codecs and value codecs for `Color`, `Offset`, `Radius`, -`Alignment` / `AlignmentDirectional` / `AlignmentGeometry`, and -`EdgeInsets` / `EdgeInsetsDirectional` / `EdgeInsetsGeometry`, plus composite -painting codecs for borders, shadows, gradients, `ImageProvider` -(`NetworkImage` / `AssetImage`), `TextStyle`, and `BoxDecoration`. +Every codec is an Ack `CodecSchema` and exposes the same surface: -`BoxDecoration.image` is currently deferred: decode accepts only missing or -`null` image values, and encode emits `"image": null`. +```dart +codec.parse(json); // decode, throws on failure +codec.safeParse(json); // decode, returns SchemaResult +codec.encode(value); // encode to a JSON-safe map / scalar +codec.toJsonSchema(); // emit JSON Schema for downstream tooling +``` + +Codecs compose: composite types reuse their dependents, so a `BoxDecoration` +codec inherits the validation and schema output of `Color`, `BoxBorder`, +`Gradient`, `BoxShadow`, and so on. + +## Quick example + +```dart +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; + +final decoration = BoxDecoration( + color: const Color(0xFF2196F3), + border: Border.all(color: const Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(8), + gradient: const LinearGradient( + colors: [Color(0xFFFF0000), Color(0xFF0000FF)], + ), +); + +final json = boxDecorationCodec.encode(decoration); +// json is a Map safe for jsonEncode + +final roundTripped = boxDecorationCodec.parse(json); +assert(roundTripped == decoration); +``` + +## Coverage + +| Family | Type(s) | Codec(s) | Source | +|---|---|---|---| +| Primitives | `Color` | `colorCodec` | [lib/src/primitives/color.dart](lib/src/primitives/color.dart) | +| | `Offset` | `offsetCodec` | [lib/src/primitives/offset.dart](lib/src/primitives/offset.dart) | +| | `Radius` | `radiusCodec` | [lib/src/primitives/radius.dart](lib/src/primitives/radius.dart) | +| | `Rect` | `rectCodec` | [lib/src/primitives/rect.dart](lib/src/primitives/rect.dart) | +| | `Alignment` / `AlignmentDirectional` / `AlignmentGeometry` | `alignmentCodec`, `alignmentDirectionalCodec`, `alignmentGeometryCodec` | [lib/src/primitives/alignment.dart](lib/src/primitives/alignment.dart) | +| | `EdgeInsets` / `EdgeInsetsDirectional` / `EdgeInsetsGeometry` | `edgeInsetsCodec`, `edgeInsetsDirectionalCodec`, `edgeInsetsGeometryCodec` | [lib/src/primitives/edge_insets.dart](lib/src/primitives/edge_insets.dart) | +| | `BorderRadius` / `BorderRadiusDirectional` / `BorderRadiusGeometry` | `borderRadiusCodec`, `borderRadiusDirectionalCodec`, `borderRadiusGeometryCodec` | [lib/src/primitives/border_radius.dart](lib/src/primitives/border_radius.dart) | +| | `FontWeight` | `fontWeightCodec` | [lib/src/primitives/font_weight.dart](lib/src/primitives/font_weight.dart) | +| | `FontFeature` | `fontFeatureCodec` | [lib/src/primitives/font_feature.dart](lib/src/primitives/font_feature.dart) | +| | `FontVariation` | `fontVariationCodec` | [lib/src/primitives/font_variation.dart](lib/src/primitives/font_variation.dart) | +| | `TextDecoration` | `textDecorationCodec` | [lib/src/primitives/text_decoration.dart](lib/src/primitives/text_decoration.dart) | +| | `Locale` | `localeCodec` | [lib/src/primitives/locale.dart](lib/src/primitives/locale.dart) | +| Enums | 30+ painting/rendering enums (e.g. `blendModeCodec`, `boxShapeCodec`, `tileModeCodec`, `fontStyleCodec`) | see file | [lib/src/enums.dart](lib/src/enums.dart) | +| Borders | `BorderSide`, `Border`, `BorderDirectional`, `BoxBorder`, `StrokeAlign` | `borderSideCodec`, `borderCodec`, `borderDirectionalCodec`, `boxBorderCodec`, `strokeAlignCodec` | [lib/src/borders.dart](lib/src/borders.dart) | +| Shape borders | `CircleBorder`, `StadiumBorder`, `RoundedRectangleBorder`, `BeveledRectangleBorder`, `ContinuousRectangleBorder`, `ShapeBorder` | `circleBorderCodec`, `stadiumBorderCodec`, `roundedRectangleBorderCodec`, `beveledRectangleBorderCodec`, `continuousRectangleBorderCodec`, `shapeBorderCodec` | [lib/src/shape_borders.dart](lib/src/shape_borders.dart) | +| Shadows | `Shadow`, `BoxShadow` | `shadowCodec`, `boxShadowCodec` | [lib/src/shadows.dart](lib/src/shadows.dart) | +| Gradients | `LinearGradient`, `RadialGradient`, `SweepGradient`, `Gradient` | `linearGradientCodec`, `radialGradientCodec`, `sweepGradientCodec`, `gradientCodec` | [lib/src/gradients.dart](lib/src/gradients.dart) | +| Image providers | `NetworkImage`, `AssetImage`, `ImageProvider` | `networkImageCodec`, `assetImageCodec`, `imageProviderCodec` | [lib/src/image_providers.dart](lib/src/image_providers.dart) | +| Decoration image | `DecorationImage` | `decorationImageCodec` | [lib/src/decoration_image.dart](lib/src/decoration_image.dart) | +| Text style | `TextStyle` | `textStyleCodec` | [lib/src/text_style.dart](lib/src/text_style.dart) | +| Decorations | `BoxDecoration`, `ShapeDecoration`, `Decoration` | `boxDecorationCodec`, `shapeDecorationCodec`, `decorationCodec` | [lib/src/decorations.dart](lib/src/decorations.dart) | + +## Discriminated unions + +Polymorphic types are encoded as `{ "type": "", ...fields }`. The +discriminator key is injected by the union at encode time; standalone branch +codecs do not require it on input. + +| Union | Discriminator key | Branches | +|---|---|---| +| `gradientCodec` | `"type"` | `"linear"`, `"radial"`, `"sweep"` | +| `imageProviderCodec` | `"type"` | `"network"`, `"asset"` | +| `shapeBorderCodec` | `"type"` | `"circle"`, `"stadium"`, `"roundedRectangle"`, `"beveledRectangle"`, `"continuousRectangle"` | +| `decorationCodec` | `"type"` | `"box"`, `"shape"` | + +## Intentionally excluded + +These types have no portable JSON shape, or their JSON representation would +mislead more than it helps. Each is documented at the call site rather than +silently falling back. + +- **No portable JSON shape**: `Paint`, `Path`, `Shader`, `ColorFilter` (see + [Roadmap](#roadmap)), `ImageFilter` (see [Roadmap](#roadmap)), + `TextStyle.foreground` / `TextStyle.background`, + `DecorationImage.colorFilter`, `DecorationImage.onError`, + `FlutterLogoDecoration`. +- **Local or recursive providers**: `FileImage` (local path), `MemoryImage` + (base64 bloat), `ResizeImage` (wraps another provider), custom + `AssetBundle` instances on `AssetImage`. +- **Lossy narrowing**: `OvalBorder` extends `CircleBorder`, so it round-trips + as `CircleBorder` — the runtime subtype is lost. The painted output is + equivalent to `CircleBorder(eccentricity: 1.0)`. +- **Separate plans**: `InputBorder` family (Material — `OutlineInputBorder`, + `UnderlineInputBorder`), `StarBorder`, `LinearBorder`, + `RoundedSuperellipseBorder` (see [Roadmap](#roadmap)). + +## JSON Schema export + +Every codec implements `.toJsonSchema()`, returning a `Map` +that round-trips through `jsonEncode`. Composition flows through: the schema +for `boxDecorationCodec` embeds the schemas for its dependent codecs (color +pattern, gradient discriminator, shape enum, and so on). + +## Roadmap + +- `colorFilterCodec` + `imageFilterCodec` — closes the last meaningful + semantic gap and unblocks wiring `DecorationImage.colorFilter`. +- `roundedSuperellipseBorderCodec` — a single new branch on + `shapeBorderCodec` once the Flutter SDK floor permits it. From 940126d3b2266a999025edbd3287592ef809bab1 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 27 May 2026 10:17:37 -0400 Subject: [PATCH 36/53] feat(flutter_codec)!: add RoundedSuperellipseBorder codec Adds roundedSuperellipseBorderCodec sharing the {side, borderRadius} schema with the other three rectangle border codecs, and a "roundedSuperellipse" branch on shapeBorderCodec. Bumps the Flutter SDK floor to >=3.27.0 since RoundedSuperellipseBorder was introduced there. README and CHANGELOG updated; the type is no longer listed under "intentionally excluded" or the roadmap. --- packages/flutter_codec/CHANGELOG.md | 3 +- packages/flutter_codec/README.md | 9 ++-- .../flutter_codec/lib/src/shape_borders.dart | 43 +++++++++++++++---- packages/flutter_codec/pubspec.yaml | 2 +- .../shape_borders/shape_borders_test.dart | 30 ++++++++++++- 5 files changed, 68 insertions(+), 19 deletions(-) diff --git a/packages/flutter_codec/CHANGELOG.md b/packages/flutter_codec/CHANGELOG.md index 453302c0..9329cdf7 100644 --- a/packages/flutter_codec/CHANGELOG.md +++ b/packages/flutter_codec/CHANGELOG.md @@ -17,7 +17,8 @@ Initial release. JSON value codecs for Flutter's painting layer, built on `StrokeAlign`. - **Shape borders** (discriminated by `"type"`): `CircleBorder`, `StadiumBorder`, `RoundedRectangleBorder`, `BeveledRectangleBorder`, - `ContinuousRectangleBorder` → `ShapeBorder`. + `ContinuousRectangleBorder`, `RoundedSuperellipseBorder` → `ShapeBorder`. + Requires Flutter `>=3.27.0` for `RoundedSuperellipseBorder`. - **Shadows**: `Shadow`, `BoxShadow`. - **Gradients** (discriminated by `"type"`): `LinearGradient`, `RadialGradient`, `SweepGradient` → `Gradient`. diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index 88060b44..9ac7e0c7 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -56,7 +56,7 @@ assert(roundTripped == decoration); | | `Locale` | `localeCodec` | [lib/src/primitives/locale.dart](lib/src/primitives/locale.dart) | | Enums | 30+ painting/rendering enums (e.g. `blendModeCodec`, `boxShapeCodec`, `tileModeCodec`, `fontStyleCodec`) | see file | [lib/src/enums.dart](lib/src/enums.dart) | | Borders | `BorderSide`, `Border`, `BorderDirectional`, `BoxBorder`, `StrokeAlign` | `borderSideCodec`, `borderCodec`, `borderDirectionalCodec`, `boxBorderCodec`, `strokeAlignCodec` | [lib/src/borders.dart](lib/src/borders.dart) | -| Shape borders | `CircleBorder`, `StadiumBorder`, `RoundedRectangleBorder`, `BeveledRectangleBorder`, `ContinuousRectangleBorder`, `ShapeBorder` | `circleBorderCodec`, `stadiumBorderCodec`, `roundedRectangleBorderCodec`, `beveledRectangleBorderCodec`, `continuousRectangleBorderCodec`, `shapeBorderCodec` | [lib/src/shape_borders.dart](lib/src/shape_borders.dart) | +| Shape borders | `CircleBorder`, `StadiumBorder`, `RoundedRectangleBorder`, `BeveledRectangleBorder`, `ContinuousRectangleBorder`, `RoundedSuperellipseBorder`, `ShapeBorder` | `circleBorderCodec`, `stadiumBorderCodec`, `roundedRectangleBorderCodec`, `beveledRectangleBorderCodec`, `continuousRectangleBorderCodec`, `roundedSuperellipseBorderCodec`, `shapeBorderCodec` | [lib/src/shape_borders.dart](lib/src/shape_borders.dart) | | Shadows | `Shadow`, `BoxShadow` | `shadowCodec`, `boxShadowCodec` | [lib/src/shadows.dart](lib/src/shadows.dart) | | Gradients | `LinearGradient`, `RadialGradient`, `SweepGradient`, `Gradient` | `linearGradientCodec`, `radialGradientCodec`, `sweepGradientCodec`, `gradientCodec` | [lib/src/gradients.dart](lib/src/gradients.dart) | | Image providers | `NetworkImage`, `AssetImage`, `ImageProvider` | `networkImageCodec`, `assetImageCodec`, `imageProviderCodec` | [lib/src/image_providers.dart](lib/src/image_providers.dart) | @@ -74,7 +74,7 @@ codecs do not require it on input. |---|---|---| | `gradientCodec` | `"type"` | `"linear"`, `"radial"`, `"sweep"` | | `imageProviderCodec` | `"type"` | `"network"`, `"asset"` | -| `shapeBorderCodec` | `"type"` | `"circle"`, `"stadium"`, `"roundedRectangle"`, `"beveledRectangle"`, `"continuousRectangle"` | +| `shapeBorderCodec` | `"type"` | `"circle"`, `"stadium"`, `"roundedRectangle"`, `"beveledRectangle"`, `"continuousRectangle"`, `"roundedSuperellipse"` | | `decorationCodec` | `"type"` | `"box"`, `"shape"` | ## Intentionally excluded @@ -95,8 +95,7 @@ silently falling back. as `CircleBorder` — the runtime subtype is lost. The painted output is equivalent to `CircleBorder(eccentricity: 1.0)`. - **Separate plans**: `InputBorder` family (Material — `OutlineInputBorder`, - `UnderlineInputBorder`), `StarBorder`, `LinearBorder`, - `RoundedSuperellipseBorder` (see [Roadmap](#roadmap)). + `UnderlineInputBorder`), `StarBorder`, `LinearBorder`. ## JSON Schema export @@ -109,5 +108,3 @@ pattern, gradient discriminator, shape enum, and so on). - `colorFilterCodec` + `imageFilterCodec` — closes the last meaningful semantic gap and unblocks wiring `DecorationImage.colorFilter`. -- `roundedSuperellipseBorderCodec` — a single new branch on - `shapeBorderCodec` once the Flutter SDK floor permits it. diff --git a/packages/flutter_codec/lib/src/shape_borders.dart b/packages/flutter_codec/lib/src/shape_borders.dart index 0d80c933..334671e6 100644 --- a/packages/flutter_codec/lib/src/shape_borders.dart +++ b/packages/flutter_codec/lib/src/shape_borders.dart @@ -9,6 +9,7 @@ import 'package:flutter/painting.dart' ContinuousRectangleBorder, OutlinedBorder, RoundedRectangleBorder, + RoundedSuperellipseBorder, ShapeBorder, StadiumBorder; @@ -16,11 +17,11 @@ import 'borders.dart' show borderSideCodec; import 'json_readers.dart'; import 'primitives/border_radius.dart' show borderRadiusGeometryCodec; -// Shared `{side, borderRadius}` schema for the three corner-rounded +// Shared `{side, borderRadius}` schema for the four corner-rounded // rectangular border codecs ([roundedRectangleBorderCodec], -// [beveledRectangleBorderCodec], [continuousRectangleBorderCodec]). They -// accept the same JSON payload and differ only in the runtime [ShapeBorder] -// subtype they decode to. +// [beveledRectangleBorderCodec], [continuousRectangleBorderCodec], +// [roundedSuperellipseBorderCodec]). They accept the same JSON payload and +// differ only in the runtime [ShapeBorder] subtype they decode to. final _rectangleBorderSchema = Ack.object({ 'side': borderSideCodec.withDefault(BorderSide.none), 'borderRadius': borderRadiusGeometryCodec.withDefault(BorderRadius.zero), @@ -117,9 +118,29 @@ final continuousRectangleBorderCodec = _rectangleBorderSchema }, ); +/// Codec for [RoundedSuperellipseBorder]. +/// +/// Shares the `{side, borderRadius}` shape with the other corner-rounded +/// rectangle border codecs ([roundedRectangleBorderCodec], +/// [beveledRectangleBorderCodec], [continuousRectangleBorderCodec]); only the +/// runtime [ShapeBorder] subtype differs. Requires Flutter 3.27 or later. +/// The `"type"` discriminator is added by [shapeBorderCodec] when this codec +/// is used as one of its branches. +final roundedSuperellipseBorderCodec = _rectangleBorderSchema + .codec( + decode: (data) => RoundedSuperellipseBorder( + side: readValue(data, 'side'), + borderRadius: readValue(data, 'borderRadius'), + ), + encode: (value) => { + 'side': value.side, + 'borderRadius': value.borderRadius, + }, + ); + /// Codec for JSON-safe [ShapeBorder] values, discriminated by `"type"`. /// -/// Covers the five concrete [OutlinedBorder] subtypes Flutter exposes from +/// Covers the six concrete [OutlinedBorder] subtypes Flutter exposes from /// `package:flutter/painting.dart`: /// /// * `"circle"` → [CircleBorder] @@ -127,11 +148,11 @@ final continuousRectangleBorderCodec = _rectangleBorderSchema /// * `"roundedRectangle"` → [RoundedRectangleBorder] /// * `"beveledRectangle"` → [BeveledRectangleBorder] /// * `"continuousRectangle"` → [ContinuousRectangleBorder] +/// * `"roundedSuperellipse"` → [RoundedSuperellipseBorder] (Flutter 3.27+) /// -/// [InputBorder] subtypes (Material), the newer [StarBorder] and -/// [LinearBorder] shapes, and `RoundedSuperellipseBorder` are intentionally -/// not covered here — they belong to separate plans because their -/// constructor surfaces are materially different. +/// [InputBorder] subtypes (Material) and the newer [StarBorder] / [LinearBorder] +/// shapes are intentionally not covered here — they belong to separate plans +/// because their constructor surfaces are materially different. /// /// `OvalBorder` extends [CircleBorder], so it round-trips as a /// [CircleBorder] (the runtime subtype is lost). Its painted output is @@ -163,5 +184,9 @@ final shapeBorderCodec = Ack.discriminated( decode: (value) => value, encode: (value) => value as ContinuousRectangleBorder, ), + 'roundedSuperellipse': roundedSuperellipseBorderCodec.codec( + decode: (value) => value, + encode: (value) => value as RoundedSuperellipseBorder, + ), }, ); diff --git a/packages/flutter_codec/pubspec.yaml b/packages/flutter_codec/pubspec.yaml index 58feb546..da3fc436 100644 --- a/packages/flutter_codec/pubspec.yaml +++ b/packages/flutter_codec/pubspec.yaml @@ -7,7 +7,7 @@ resolution: workspace environment: sdk: '>=3.8.0 <4.0.0' - flutter: '>=3.16.0' + flutter: '>=3.27.0' dependencies: ack: ^1.0.0-beta.12-wip diff --git a/packages/flutter_codec/test/shape_borders/shape_borders_test.dart b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart index 91315b85..ae38fe4b 100644 --- a/packages/flutter_codec/test/shape_borders/shape_borders_test.dart +++ b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart @@ -78,7 +78,8 @@ void main() { }); }); - group('beveledRectangleBorderCodec / continuousRectangleBorderCodec', () { + group('beveledRectangleBorderCodec / continuousRectangleBorderCodec / ' + 'roundedSuperellipseBorderCodec', () { test('each decodes its empty default and round-trips', () { expect( beveledRectangleBorderCodec.parse({}), @@ -88,6 +89,10 @@ void main() { continuousRectangleBorderCodec.parse({}), const ContinuousRectangleBorder(), ); + expect( + roundedSuperellipseBorderCodec.parse({}), + const RoundedSuperellipseBorder(), + ); final beveled = BeveledRectangleBorder( borderRadius: BorderRadius.circular(4), @@ -108,6 +113,17 @@ void main() { ), continuous, ); + + final superellipse = RoundedSuperellipseBorder( + side: const BorderSide(color: Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(8), + ); + expect( + roundedSuperellipseBorderCodec.parse( + roundedSuperellipseBorderCodec.encode(superellipse), + ), + superellipse, + ); }); }); @@ -130,6 +146,10 @@ void main() { shapeBorderCodec.parse({'type': 'continuousRectangle'}), const ContinuousRectangleBorder(), ); + expect( + shapeBorderCodec.parse({'type': 'roundedSuperellipse'}), + const RoundedSuperellipseBorder(), + ); }); test('encode dispatches by runtime ShapeBorder subtype', () { @@ -145,6 +165,11 @@ void main() { final rounded = shapeBorderCodec.encode(const RoundedRectangleBorder()); expect(rounded, containsPair('type', 'roundedRectangle')); expect(rounded, containsPair('side', 'none')); + final superellipse = shapeBorderCodec.encode( + const RoundedSuperellipseBorder(), + ); + expect(superellipse, containsPair('type', 'roundedSuperellipse')); + expect(superellipse, containsPair('side', 'none')); }); test('rejects an unknown discriminator', () { @@ -155,7 +180,7 @@ void main() { expect(shapeBorderCodec.safeParse({}).isFail, isTrue); }); - test('JSON Schema surfaces all five discriminator branches', () { + test('JSON Schema surfaces all six discriminator branches', () { final schema = jsonEncode(shapeBorderCodec.toJsonSchema()); for (final value in const [ 'circle', @@ -163,6 +188,7 @@ void main() { 'roundedRectangle', 'beveledRectangle', 'continuousRectangle', + 'roundedSuperellipse', ]) { expect(schema, contains('"$value"')); } From 628f5fd9c36cdb2ce01b067bb27c922636a04c3c Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 27 May 2026 10:24:06 -0400 Subject: [PATCH 37/53] refactor(flutter_codec): drop redundant widening wrappers from discriminated union branches Ack.discriminated takes Map>, and Dart's default covariance on generic parameters already accepts a CodecSchema in place of AckSchema. The runtime encode dispatch (each branch's own validateRuntimeWithContext) checks 'value is BranchT' itself, so the .codec(decode: (v) => v, encode: (v) => v as Concrete) wrappers were always redundant. Applies the simplification across all four union sites: - gradientCodec (3 branches) - imageProviderCodec (2 branches) - shapeBorderCodec (6 branches) - decorationCodec (2 branches) Net: ~44 lines of boilerplate removed; behavior identical. The upstream Ack.discriminatedOf feature request is no longer needed. --- .../flutter_codec/lib/src/decorations.dart | 11 +------ packages/flutter_codec/lib/src/gradients.dart | 15 ++-------- .../lib/src/image_providers.dart | 11 +------ .../flutter_codec/lib/src/shape_borders.dart | 30 ++++--------------- 4 files changed, 11 insertions(+), 56 deletions(-) diff --git a/packages/flutter_codec/lib/src/decorations.dart b/packages/flutter_codec/lib/src/decorations.dart index dc027cb7..c718c67b 100644 --- a/packages/flutter_codec/lib/src/decorations.dart +++ b/packages/flutter_codec/lib/src/decorations.dart @@ -138,14 +138,5 @@ JsonMap _encodeShapeDecoration(ShapeDecoration value) { /// belong outside the painting layer. final decorationCodec = Ack.discriminated( discriminatorKey: 'type', - schemas: { - 'box': boxDecorationCodec.codec( - decode: (value) => value, - encode: (value) => value as BoxDecoration, - ), - 'shape': shapeDecorationCodec.codec( - decode: (value) => value, - encode: (value) => value as ShapeDecoration, - ), - }, + schemas: {'box': boxDecorationCodec, 'shape': shapeDecorationCodec}, ); diff --git a/packages/flutter_codec/lib/src/gradients.dart b/packages/flutter_codec/lib/src/gradients.dart index 58221c57..53c222f2 100644 --- a/packages/flutter_codec/lib/src/gradients.dart +++ b/packages/flutter_codec/lib/src/gradients.dart @@ -129,17 +129,8 @@ final sweepGradientCodec = final gradientCodec = Ack.discriminated( discriminatorKey: 'type', schemas: { - 'linear': linearGradientCodec.codec( - decode: (value) => value, - encode: (value) => value as LinearGradient, - ), - 'radial': radialGradientCodec.codec( - decode: (value) => value, - encode: (value) => value as RadialGradient, - ), - 'sweep': sweepGradientCodec.codec( - decode: (value) => value, - encode: (value) => value as SweepGradient, - ), + 'linear': linearGradientCodec, + 'radial': radialGradientCodec, + 'sweep': sweepGradientCodec, }, ); diff --git a/packages/flutter_codec/lib/src/image_providers.dart b/packages/flutter_codec/lib/src/image_providers.dart index fbf43ae4..b2feca13 100644 --- a/packages/flutter_codec/lib/src/image_providers.dart +++ b/packages/flutter_codec/lib/src/image_providers.dart @@ -82,14 +82,5 @@ final assetImageCodec = /// asset bundles are rejected instead of guessing a non-portable JSON shape. final imageProviderCodec = Ack.discriminated>( discriminatorKey: 'type', - schemas: { - 'network': networkImageCodec.codec>( - decode: (value) => value, - encode: (value) => value as NetworkImage, - ), - 'asset': assetImageCodec.codec>( - decode: (value) => value, - encode: (value) => value as AssetImage, - ), - }, + schemas: {'network': networkImageCodec, 'asset': assetImageCodec}, ); diff --git a/packages/flutter_codec/lib/src/shape_borders.dart b/packages/flutter_codec/lib/src/shape_borders.dart index 334671e6..62976b33 100644 --- a/packages/flutter_codec/lib/src/shape_borders.dart +++ b/packages/flutter_codec/lib/src/shape_borders.dart @@ -164,29 +164,11 @@ final roundedSuperellipseBorderCodec = _rectangleBorderSchema final shapeBorderCodec = Ack.discriminated( discriminatorKey: 'type', schemas: { - 'circle': circleBorderCodec.codec( - decode: (value) => value, - encode: (value) => value as CircleBorder, - ), - 'stadium': stadiumBorderCodec.codec( - decode: (value) => value, - encode: (value) => value as StadiumBorder, - ), - 'roundedRectangle': roundedRectangleBorderCodec.codec( - decode: (value) => value, - encode: (value) => value as RoundedRectangleBorder, - ), - 'beveledRectangle': beveledRectangleBorderCodec.codec( - decode: (value) => value, - encode: (value) => value as BeveledRectangleBorder, - ), - 'continuousRectangle': continuousRectangleBorderCodec.codec( - decode: (value) => value, - encode: (value) => value as ContinuousRectangleBorder, - ), - 'roundedSuperellipse': roundedSuperellipseBorderCodec.codec( - decode: (value) => value, - encode: (value) => value as RoundedSuperellipseBorder, - ), + 'circle': circleBorderCodec, + 'stadium': stadiumBorderCodec, + 'roundedRectangle': roundedRectangleBorderCodec, + 'beveledRectangle': beveledRectangleBorderCodec, + 'continuousRectangle': continuousRectangleBorderCodec, + 'roundedSuperellipse': roundedSuperellipseBorderCodec, }, ); From a38486cd230b55a87181d80160261f8c0ca97bba Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 27 May 2026 11:18:04 -0400 Subject: [PATCH 38/53] docs(flutter_codec): document why ColorFilter and ImageFilter are excluded Both types keep all constructor state in library-private fields with no public getters anywhere in dart:ui or package:flutter. ColorFilter is a single class with shared runtimeType across all four constructor variants; ImageFilter is abstract with a private constructor and library-private subclasses. The only state-revealing surface is toString(), which is a debug format with no stability contract. A bidirectional codec is therefore not achievable via the public API. DecorationImage.colorFilter stays permanently excluded for the same reason. Adds a dedicated 'Opaque dart:ui state' bullet to the README's intentionally-excluded section, removes the now-obsolete Roadmap entry, and tightens decoration_image.dart's dartdoc with the concrete reason. --- packages/flutter_codec/README.md | 24 ++++++++++++++----- .../lib/src/decoration_image.dart | 8 ++++++- 2 files changed, 25 insertions(+), 7 deletions(-) diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index 9ac7e0c7..db886033 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -83,11 +83,21 @@ These types have no portable JSON shape, or their JSON representation would mislead more than it helps. Each is documented at the call site rather than silently falling back. -- **No portable JSON shape**: `Paint`, `Path`, `Shader`, `ColorFilter` (see - [Roadmap](#roadmap)), `ImageFilter` (see [Roadmap](#roadmap)), +- **Opaque `dart:ui` state — encode impossible via public API**: + `ColorFilter` and `ImageFilter`. `ColorFilter` keeps `_color`, `_blendMode`, + `_matrix`, and `_type` in library-private fields and exposes the same + `runtimeType` for all four constructor variants, so an existing instance + cannot be inspected back to JSON. `ImageFilter` is abstract with a private + constructor (`ImageFilter._()`) and returns library-private subtypes + (`_GaussianBlurImageFilter`, `_MatrixImageFilter`, etc.) from its factories + — external code cannot `is`-check or downcast them. The only state-revealing + surface is `toString()`, which is a debug format Flutter is free to change + between releases. A bidirectional codec is not achievable here without + introducing parallel descriptor types; the same goes for + `DecorationImage.colorFilter` (which embeds a `ColorFilter`). +- **No portable JSON shape**: `Paint`, `Path`, `Shader`, `TextStyle.foreground` / `TextStyle.background`, - `DecorationImage.colorFilter`, `DecorationImage.onError`, - `FlutterLogoDecoration`. + `DecorationImage.onError`, `FlutterLogoDecoration`. - **Local or recursive providers**: `FileImage` (local path), `MemoryImage` (base64 bloat), `ResizeImage` (wraps another provider), custom `AssetBundle` instances on `AssetImage`. @@ -106,5 +116,7 @@ pattern, gradient discriminator, shape enum, and so on). ## Roadmap -- `colorFilterCodec` + `imageFilterCodec` — closes the last meaningful - semantic gap and unblocks wiring `DecorationImage.colorFilter`. +The painting-layer surface is feature-complete for the types Flutter exposes +JSON-safely. Future additions would require either upstream changes to +`dart:ui` (to expose `ColorFilter`/`ImageFilter` state) or a parallel +descriptor-type design that we'd own outside the raw Flutter types. diff --git a/packages/flutter_codec/lib/src/decoration_image.dart b/packages/flutter_codec/lib/src/decoration_image.dart index 6c6185e7..c5090477 100644 --- a/packages/flutter_codec/lib/src/decoration_image.dart +++ b/packages/flutter_codec/lib/src/decoration_image.dart @@ -28,7 +28,13 @@ import 'primitives/rect.dart' show rectCodec; /// inputs fail to parse rather than silently clamp. /// /// Intentionally unsupported: -/// * `colorFilter` — `ColorFilter` has no portable JSON shape. +/// * `colorFilter` — `ColorFilter` keeps its constructor arguments +/// (`color`, `blendMode`, `matrix`, type discriminator) in library-private +/// fields with no public getters, and exposes the same `runtimeType` for +/// all four constructor variants. There is no portable, contract-stable +/// way to inspect an existing instance back to JSON, so a bidirectional +/// codec is not achievable via the public API. The same constraint applies +/// to `ImageFilter` (private subtypes, private state). /// * `onError` — callback type, not serializable. /// /// Both are excluded from [DecorationImage]'s `==`, so round-trips remain From 79b792b1583a416da2a9e2c6c99a07e19c63bf33 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 27 May 2026 11:49:45 -0400 Subject: [PATCH 39/53] feat(flutter_codec): add textHeightBehaviorCodec and strutStyleCodec - textHeightBehaviorCodec covers TextHeightBehavior's three constructor fields (applyHeightToFirstAscent, applyHeightToLastDescent, leadingDistribution) with Flutter's defaults baked in. - strutStyleCodec mirrors textStyleCodec for StrutStyle, covering every JSON-safe constructor parameter. debugLabel is excluded (matches the TextStyle policy). - Extracted the package-prefix unfolding heuristic from text_style.dart into a shared lib/src/font_family_packing.dart helper, used by both textStyleCodec and strutStyleCodec. README and CHANGELOG updated. 482/482 tests pass (15 new). --- packages/flutter_codec/CHANGELOG.md | 2 +- packages/flutter_codec/README.md | 2 + packages/flutter_codec/lib/flutter_codec.dart | 1 + .../lib/src/font_family_packing.dart | 52 +++++++++ .../flutter_codec/lib/src/primitives.dart | 1 + .../src/primitives/text_height_behavior.dart | 42 ++++++++ .../flutter_codec/lib/src/strut_style.dart | 76 +++++++++++++ .../flutter_codec/lib/src/text_style.dart | 51 +-------- .../primitives/text_height_behavior_test.dart | 74 +++++++++++++ .../test/strut_style/strut_style_test.dart | 101 ++++++++++++++++++ 10 files changed, 355 insertions(+), 47 deletions(-) create mode 100644 packages/flutter_codec/lib/src/font_family_packing.dart create mode 100644 packages/flutter_codec/lib/src/primitives/text_height_behavior.dart create mode 100644 packages/flutter_codec/lib/src/strut_style.dart create mode 100644 packages/flutter_codec/test/primitives/text_height_behavior_test.dart create mode 100644 packages/flutter_codec/test/strut_style/strut_style_test.dart diff --git a/packages/flutter_codec/CHANGELOG.md b/packages/flutter_codec/CHANGELOG.md index 9329cdf7..5549d4d5 100644 --- a/packages/flutter_codec/CHANGELOG.md +++ b/packages/flutter_codec/CHANGELOG.md @@ -27,7 +27,7 @@ Initial release. JSON value codecs for Flutter's painting layer, built on - **Decoration image**: `DecorationImage` (composes `imageProviderCodec`, `rectCodec`, and the relevant enum codecs). - **Text style**: `TextStyle` (including `fontFeatures` and `fontVariations` - lists). + lists), `StrutStyle` (sibling layout style), `TextHeightBehavior`. - **Decorations** (discriminated by `"type"`): `BoxDecoration`, `ShapeDecoration` → `Decoration`. diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index db886033..aafccd2f 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -53,6 +53,7 @@ assert(roundTripped == decoration); | | `FontFeature` | `fontFeatureCodec` | [lib/src/primitives/font_feature.dart](lib/src/primitives/font_feature.dart) | | | `FontVariation` | `fontVariationCodec` | [lib/src/primitives/font_variation.dart](lib/src/primitives/font_variation.dart) | | | `TextDecoration` | `textDecorationCodec` | [lib/src/primitives/text_decoration.dart](lib/src/primitives/text_decoration.dart) | +| | `TextHeightBehavior` | `textHeightBehaviorCodec` | [lib/src/primitives/text_height_behavior.dart](lib/src/primitives/text_height_behavior.dart) | | | `Locale` | `localeCodec` | [lib/src/primitives/locale.dart](lib/src/primitives/locale.dart) | | Enums | 30+ painting/rendering enums (e.g. `blendModeCodec`, `boxShapeCodec`, `tileModeCodec`, `fontStyleCodec`) | see file | [lib/src/enums.dart](lib/src/enums.dart) | | Borders | `BorderSide`, `Border`, `BorderDirectional`, `BoxBorder`, `StrokeAlign` | `borderSideCodec`, `borderCodec`, `borderDirectionalCodec`, `boxBorderCodec`, `strokeAlignCodec` | [lib/src/borders.dart](lib/src/borders.dart) | @@ -62,6 +63,7 @@ assert(roundTripped == decoration); | Image providers | `NetworkImage`, `AssetImage`, `ImageProvider` | `networkImageCodec`, `assetImageCodec`, `imageProviderCodec` | [lib/src/image_providers.dart](lib/src/image_providers.dart) | | Decoration image | `DecorationImage` | `decorationImageCodec` | [lib/src/decoration_image.dart](lib/src/decoration_image.dart) | | Text style | `TextStyle` | `textStyleCodec` | [lib/src/text_style.dart](lib/src/text_style.dart) | +| Strut style | `StrutStyle` | `strutStyleCodec` | [lib/src/strut_style.dart](lib/src/strut_style.dart) | | Decorations | `BoxDecoration`, `ShapeDecoration`, `Decoration` | `boxDecorationCodec`, `shapeDecorationCodec`, `decorationCodec` | [lib/src/decorations.dart](lib/src/decorations.dart) | ## Discriminated unions diff --git a/packages/flutter_codec/lib/flutter_codec.dart b/packages/flutter_codec/lib/flutter_codec.dart index c135bca0..6b3ab824 100644 --- a/packages/flutter_codec/lib/flutter_codec.dart +++ b/packages/flutter_codec/lib/flutter_codec.dart @@ -10,4 +10,5 @@ export 'src/image_providers.dart'; export 'src/primitives.dart'; export 'src/shadows.dart'; export 'src/shape_borders.dart'; +export 'src/strut_style.dart'; export 'src/text_style.dart'; diff --git a/packages/flutter_codec/lib/src/font_family_packing.dart b/packages/flutter_codec/lib/src/font_family_packing.dart new file mode 100644 index 00000000..3b060311 --- /dev/null +++ b/packages/flutter_codec/lib/src/font_family_packing.dart @@ -0,0 +1,52 @@ +// Internal helpers shared by [textStyleCodec] and [strutStyleCodec] for +// unfolding Flutter's `packages//` storage back to the +// user-supplied `(fontFamily, fontFamilyFallback, package)` triple. +// +// Flutter folds `package` into `fontFamily` at construction +// (`fontFamily = package == null ? fontFamily : 'packages/$package/$fontFamily'`) +// and stores the original `package` privately, so codecs have to recover +// the split heuristically when all referenced families share the same +// `packages//` prefix. + +/// Unfolds Flutter's `packages//` storage back to the +/// `(fontFamily, fontFamilyFallback, package)` triple when all referenced +/// families share the same prefix. Falls back to the stored (prefixed) form +/// when the prefix is missing or inconsistent. +({String? family, List? fallback, String? packageName}) +unpackFontFamily(String? family, List? fallback) { + final pkg = _sharedPackagePrefix([if (family != null) family, ...?fallback]); + if (pkg == null) { + return (family: family, fallback: fallback, packageName: null); + } + + final prefix = 'packages/$pkg/'; + String strip(String f) => + f.startsWith(prefix) ? f.substring(prefix.length) : f; + return ( + family: family == null ? null : strip(family), + fallback: fallback?.map(strip).toList(), + packageName: pkg, + ); +} + +// Returns the package name shared by every `packages//` entry +// in `families`, or null if any entry lacks the prefix or disagrees. +String? _sharedPackagePrefix(List families) { + const prefix = 'packages/'; + String? shared; + for (final family in families) { + if (!family.startsWith(prefix)) return null; + + final rest = family.substring(prefix.length); + final separator = rest.indexOf('/'); + if (separator <= 0 || separator == rest.length - 1) return null; + + final name = rest.substring(0, separator); + if (shared == null) { + shared = name; + } else if (shared != name) { + return null; + } + } + return shared; +} diff --git a/packages/flutter_codec/lib/src/primitives.dart b/packages/flutter_codec/lib/src/primitives.dart index 147c9754..92ff053d 100644 --- a/packages/flutter_codec/lib/src/primitives.dart +++ b/packages/flutter_codec/lib/src/primitives.dart @@ -10,3 +10,4 @@ export 'primitives/offset.dart'; export 'primitives/radius.dart'; export 'primitives/rect.dart'; export 'primitives/text_decoration.dart'; +export 'primitives/text_height_behavior.dart'; diff --git a/packages/flutter_codec/lib/src/primitives/text_height_behavior.dart b/packages/flutter_codec/lib/src/primitives/text_height_behavior.dart new file mode 100644 index 00000000..f72738fd --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/text_height_behavior.dart @@ -0,0 +1,42 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show TextHeightBehavior, TextLeadingDistribution; + +import '../enums.dart' show textLeadingDistributionCodec; +import '../json_readers.dart'; + +/// Codec for [TextHeightBehavior]. +/// +/// Composes `applyHeightToFirstAscent` and `applyHeightToLastDescent` +/// (booleans, both default `true`) with [textLeadingDistributionCodec] for +/// `leadingDistribution` (default [TextLeadingDistribution.proportional]). +/// All three fields match Flutter's constructor defaults, so encoding a +/// default [TextHeightBehavior] round-trips through both encode and parse. +final textHeightBehaviorCodec = + Ack.object({ + 'applyHeightToFirstAscent': Ack.boolean().withDefault(true), + 'applyHeightToLastDescent': Ack.boolean().withDefault(true), + 'leadingDistribution': textLeadingDistributionCodec.withDefault( + TextLeadingDistribution.proportional, + ), + }).codec( + decode: (data) => TextHeightBehavior( + applyHeightToFirstAscent: readValue( + data, + 'applyHeightToFirstAscent', + ), + applyHeightToLastDescent: readValue( + data, + 'applyHeightToLastDescent', + ), + leadingDistribution: readValue( + data, + 'leadingDistribution', + ), + ), + encode: (value) => { + 'applyHeightToFirstAscent': value.applyHeightToFirstAscent, + 'applyHeightToLastDescent': value.applyHeightToLastDescent, + 'leadingDistribution': value.leadingDistribution, + }, + ); diff --git a/packages/flutter_codec/lib/src/strut_style.dart b/packages/flutter_codec/lib/src/strut_style.dart new file mode 100644 index 00000000..0836dda1 --- /dev/null +++ b/packages/flutter_codec/lib/src/strut_style.dart @@ -0,0 +1,76 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show FontStyle, FontWeight, StrutStyle, TextLeadingDistribution; + +import 'enums.dart' show fontStyleCodec, textLeadingDistributionCodec; +import 'font_family_packing.dart' show unpackFontFamily; +import 'json_readers.dart'; +import 'primitives/font_weight.dart' show fontWeightCodec; + +/// Codec for [StrutStyle]. +/// +/// Supported fields are the JSON-safe constructor parameters: `fontFamily`, +/// `fontFamilyFallback`, `package`, `fontSize` (positive when non-null), +/// `height`, `leadingDistribution` ([textLeadingDistributionCodec]), +/// `leading` (non-negative when non-null), `fontWeight` +/// ([fontWeightCodec]), `fontStyle` ([fontStyleCodec]), and +/// `forceStrutHeight`. +/// +/// Encoding unfolds Flutter's internal `packages//` storage +/// back to a `(fontFamily, fontFamilyFallback, package)` triple when all +/// referenced families share the same prefix (matching [textStyleCodec]). +/// When the prefix is missing or inconsistent, `package` is emitted as +/// `null` and the stored (prefixed) `fontFamily` is preserved verbatim. +/// +/// [StrutStyle.debugLabel] is excluded — it's debug metadata, ignored by +/// [StrutStyle] equality. +final strutStyleCodec = Ack.object({ + 'fontFamily': Ack.string().nullable().optional(), + 'fontFamilyFallback': Ack.list(Ack.string()).nullable().optional(), + 'package': Ack.string().nullable().optional(), + 'fontSize': Ack.number().positive().nullable().optional(), + 'height': Ack.number().nullable().optional(), + 'leadingDistribution': textLeadingDistributionCodec.nullable().optional(), + 'leading': Ack.number().min(0).nullable().optional(), + 'fontWeight': fontWeightCodec.nullable().optional(), + 'fontStyle': fontStyleCodec.nullable().optional(), + 'forceStrutHeight': Ack.boolean().nullable().optional(), +}).codec(decode: _decodeStrutStyle, encode: _encodeStrutStyle); + +StrutStyle _decodeStrutStyle(JsonMap data) { + return StrutStyle( + fontFamily: readNullableValue(data, 'fontFamily'), + fontFamilyFallback: readNullableList(data, 'fontFamilyFallback'), + package: readNullableValue(data, 'package'), + fontSize: readNullableDouble(data, 'fontSize'), + height: readNullableDouble(data, 'height'), + leadingDistribution: readNullableValue( + data, + 'leadingDistribution', + ), + leading: readNullableDouble(data, 'leading'), + fontWeight: readNullableValue(data, 'fontWeight'), + fontStyle: readNullableValue(data, 'fontStyle'), + forceStrutHeight: readNullableValue(data, 'forceStrutHeight'), + ); +} + +JsonMap _encodeStrutStyle(StrutStyle value) { + final fontFamilyFields = unpackFontFamily( + value.fontFamily, + value.fontFamilyFallback, + ); + + return { + 'fontFamily': fontFamilyFields.family, + 'fontFamilyFallback': fontFamilyFields.fallback, + 'package': fontFamilyFields.packageName, + 'fontSize': value.fontSize, + 'height': value.height, + 'leadingDistribution': value.leadingDistribution, + 'leading': value.leading, + 'fontWeight': value.fontWeight, + 'fontStyle': value.fontStyle, + 'forceStrutHeight': value.forceStrutHeight, + }; +} diff --git a/packages/flutter_codec/lib/src/text_style.dart b/packages/flutter_codec/lib/src/text_style.dart index 32da7200..f64c29bc 100644 --- a/packages/flutter_codec/lib/src/text_style.dart +++ b/packages/flutter_codec/lib/src/text_style.dart @@ -22,6 +22,7 @@ import 'enums.dart' textDecorationStyleCodec, textLeadingDistributionCodec, textOverflowCodec; +import 'font_family_packing.dart' show unpackFontFamily; import 'json_readers.dart'; import 'primitives/color.dart' show colorCodec; import 'primitives/font_feature.dart' show fontFeatureCodec; @@ -106,7 +107,10 @@ TextStyle _decodeTextStyle(JsonMap data) { } JsonMap _encodeTextStyle(TextStyle value) { - final fontFamilyFields = _encodeFontFamilyFields(value); + final fontFamilyFields = unpackFontFamily( + value.fontFamily, + value.fontFamilyFallback, + ); return { 'inherit': value.inherit, @@ -134,48 +138,3 @@ JsonMap _encodeTextStyle(TextStyle value) { 'fontVariations': value.fontVariations, }; } - -// Unfolds Flutter's internal `packages//` storage back to the -// user-supplied `(fontFamily, fontFamilyFallback, package)` triple, when all -// referenced families share the same package prefix. Falls back to the -// stored (prefixed) form if the prefix is missing or inconsistent. -({String? family, List? fallback, String? packageName}) -_encodeFontFamilyFields(TextStyle value) { - final family = value.fontFamily; - final fallback = value.fontFamilyFallback; - final pkg = _sharedPackagePrefix([if (family != null) family, ...?fallback]); - if (pkg == null) { - return (family: family, fallback: fallback, packageName: null); - } - - final prefix = 'packages/$pkg/'; - String strip(String f) => - f.startsWith(prefix) ? f.substring(prefix.length) : f; - return ( - family: family == null ? null : strip(family), - fallback: fallback?.map(strip).toList(), - packageName: pkg, - ); -} - -// Returns the package name shared by every `packages//` entry -// in `families`, or null if any entry lacks the prefix or disagrees. -String? _sharedPackagePrefix(List families) { - const prefix = 'packages/'; - String? shared; - for (final family in families) { - if (!family.startsWith(prefix)) return null; - - final rest = family.substring(prefix.length); - final separator = rest.indexOf('/'); - if (separator <= 0 || separator == rest.length - 1) return null; - - final name = rest.substring(0, separator); - if (shared == null) { - shared = name; - } else if (shared != name) { - return null; - } - } - return shared; -} diff --git a/packages/flutter_codec/test/primitives/text_height_behavior_test.dart b/packages/flutter_codec/test/primitives/text_height_behavior_test.dart new file mode 100644 index 00000000..d0bcbcb5 --- /dev/null +++ b/packages/flutter_codec/test/primitives/text_height_behavior_test.dart @@ -0,0 +1,74 @@ +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('textHeightBehaviorCodec decode', () { + test('decodes an empty object as the default TextHeightBehavior', () { + expect(textHeightBehaviorCodec.parse({}), const TextHeightBehavior()); + }); + + test('decodes a fully-specified object', () { + expect( + textHeightBehaviorCodec.parse({ + 'applyHeightToFirstAscent': false, + 'applyHeightToLastDescent': false, + 'leadingDistribution': 'even', + }), + const TextHeightBehavior( + applyHeightToFirstAscent: false, + applyHeightToLastDescent: false, + leadingDistribution: TextLeadingDistribution.even, + ), + ); + }); + }); + + group('textHeightBehaviorCodec encode', () { + test('emits the canonical map with all three fields', () { + final encoded = textHeightBehaviorCodec.encode( + const TextHeightBehavior(), + ); + expect(encoded, { + 'applyHeightToFirstAscent': true, + 'applyHeightToLastDescent': true, + 'leadingDistribution': 'proportional', + }); + expectJsonSafe(encoded); + }); + + test('round-trips a non-default behavior', () { + const original = TextHeightBehavior( + applyHeightToFirstAscent: false, + leadingDistribution: TextLeadingDistribution.even, + ); + expect( + textHeightBehaviorCodec.parse(textHeightBehaviorCodec.encode(original)), + original, + ); + }); + }); + + group('textHeightBehaviorCodec rejects invalid input', () { + test('rejects an unknown leadingDistribution', () { + expect( + textHeightBehaviorCodec.safeParse({ + 'leadingDistribution': 'centered', + }).isFail, + isTrue, + ); + }); + + test('rejects unknown keys', () { + expect( + textHeightBehaviorCodec.safeParse({ + 'applyHeightToFirstAscent': true, + 'extra': 1, + }).isFail, + isTrue, + ); + }); + }); +} diff --git a/packages/flutter_codec/test/strut_style/strut_style_test.dart b/packages/flutter_codec/test/strut_style/strut_style_test.dart new file mode 100644 index 00000000..ec95bafd --- /dev/null +++ b/packages/flutter_codec/test/strut_style/strut_style_test.dart @@ -0,0 +1,101 @@ +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('strutStyleCodec decode', () { + test('decodes an empty object as the default StrutStyle', () { + expect(strutStyleCodec.parse({}), const StrutStyle()); + }); + + test('decodes a full real-world StrutStyle', () { + expect( + strutStyleCodec.parse({ + 'fontFamily': 'Roboto', + 'fontFamilyFallback': ['Arial', 'sans-serif'], + 'fontSize': 14.0, + 'height': 1.2, + 'leadingDistribution': 'even', + 'leading': 0.5, + 'fontWeight': 'w500', + 'fontStyle': 'italic', + 'forceStrutHeight': true, + }), + const StrutStyle( + fontFamily: 'Roboto', + fontFamilyFallback: ['Arial', 'sans-serif'], + fontSize: 14.0, + height: 1.2, + leadingDistribution: TextLeadingDistribution.even, + leading: 0.5, + fontWeight: FontWeight.w500, + fontStyle: FontStyle.italic, + forceStrutHeight: true, + ), + ); + }); + + test('decodes (fontFamily, package) and produces the folded form', () { + final decoded = strutStyleCodec.parse({ + 'fontFamily': 'Roboto', + 'package': 'my_pkg', + }); + // StrutStyle's constructor folds package into fontFamily. + expect(decoded!.fontFamily, 'packages/my_pkg/Roboto'); + }); + }); + + group('strutStyleCodec encode', () { + test('emits explicit nulls for unset fields', () { + final encoded = strutStyleCodec.encode(const StrutStyle()); + expect(encoded, { + 'fontFamily': null, + 'fontFamilyFallback': null, + 'package': null, + 'fontSize': null, + 'height': null, + 'leadingDistribution': null, + 'leading': null, + 'fontWeight': null, + 'fontStyle': null, + 'forceStrutHeight': null, + }); + expectJsonSafe(encoded); + }); + + test('round-trips a populated StrutStyle', () { + const original = StrutStyle( + fontFamily: 'Roboto', + fontSize: 16.0, + height: 1.5, + fontWeight: FontWeight.w700, + forceStrutHeight: false, + ); + expect(strutStyleCodec.parse(strutStyleCodec.encode(original)), original); + }); + + test('unfolds packages// back to (fontFamily, package)', () { + const original = StrutStyle(fontFamily: 'Roboto', package: 'my_pkg'); + final encoded = strutStyleCodec.encode(original)!; + expect(encoded['fontFamily'], 'Roboto'); + expect(encoded['package'], 'my_pkg'); + }); + }); + + group('strutStyleCodec rejects invalid input', () { + test('rejects a non-positive fontSize', () { + expect(strutStyleCodec.safeParse({'fontSize': 0}).isFail, isTrue); + expect(strutStyleCodec.safeParse({'fontSize': -1}).isFail, isTrue); + }); + + test('rejects a negative leading', () { + expect(strutStyleCodec.safeParse({'leading': -0.5}).isFail, isTrue); + }); + + test('rejects unknown keys', () { + expect(strutStyleCodec.safeParse({'extra': 1}).isFail, isTrue); + }); + }); +} From 66647b80f51674c76b22a23a58a8cd0f7896cfc7 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 27 May 2026 11:53:30 -0400 Subject: [PATCH 40/53] feat(flutter_codec): add StarBorder, LinearBorder, LinearBorderEdge codecs Three new codecs on lib/src/shape_borders.dart: - starBorderCodec covers all seven StarBorder constructor parameters (side, points, innerRadiusRatio, pointRounding, valleyRounding, rotation in degrees, squash). StarBorder.polygon round-trips through the regular StarBorder constructor with the computed innerRadiusRatio. - linearBorderEdgeCodec covers LinearBorderEdge's (size, alignment), both range-validated. - linearBorderCodec covers LinearBorder's (side, start, end, top, bottom) where each edge is a nullable linearBorderEdgeCodec. shapeBorderCodec now spans eight discriminator branches (added 'star' and 'linear'). The dartdoc lists Material InputBorder subtypes as the only remaining 'separate plan' exclusion; StarBorder and LinearBorder are removed from the README's intentionally-excluded section. 496/496 tests pass (14 new). --- packages/flutter_codec/CHANGELOG.md | 5 +- packages/flutter_codec/README.md | 6 +- .../flutter_codec/lib/src/shape_borders.dart | 125 ++++++++++++++++- .../shape_borders/shape_borders_test.dart | 128 +++++++++++++++++- 4 files changed, 253 insertions(+), 11 deletions(-) diff --git a/packages/flutter_codec/CHANGELOG.md b/packages/flutter_codec/CHANGELOG.md index 5549d4d5..24fc93ad 100644 --- a/packages/flutter_codec/CHANGELOG.md +++ b/packages/flutter_codec/CHANGELOG.md @@ -17,8 +17,9 @@ Initial release. JSON value codecs for Flutter's painting layer, built on `StrokeAlign`. - **Shape borders** (discriminated by `"type"`): `CircleBorder`, `StadiumBorder`, `RoundedRectangleBorder`, `BeveledRectangleBorder`, - `ContinuousRectangleBorder`, `RoundedSuperellipseBorder` → `ShapeBorder`. - Requires Flutter `>=3.27.0` for `RoundedSuperellipseBorder`. + `ContinuousRectangleBorder`, `RoundedSuperellipseBorder`, `StarBorder`, + `LinearBorder` (with `LinearBorderEdge`) → `ShapeBorder`. Requires Flutter + `>=3.27.0` for `RoundedSuperellipseBorder`. - **Shadows**: `Shadow`, `BoxShadow`. - **Gradients** (discriminated by `"type"`): `LinearGradient`, `RadialGradient`, `SweepGradient` → `Gradient`. diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index aafccd2f..57a41168 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -57,7 +57,7 @@ assert(roundTripped == decoration); | | `Locale` | `localeCodec` | [lib/src/primitives/locale.dart](lib/src/primitives/locale.dart) | | Enums | 30+ painting/rendering enums (e.g. `blendModeCodec`, `boxShapeCodec`, `tileModeCodec`, `fontStyleCodec`) | see file | [lib/src/enums.dart](lib/src/enums.dart) | | Borders | `BorderSide`, `Border`, `BorderDirectional`, `BoxBorder`, `StrokeAlign` | `borderSideCodec`, `borderCodec`, `borderDirectionalCodec`, `boxBorderCodec`, `strokeAlignCodec` | [lib/src/borders.dart](lib/src/borders.dart) | -| Shape borders | `CircleBorder`, `StadiumBorder`, `RoundedRectangleBorder`, `BeveledRectangleBorder`, `ContinuousRectangleBorder`, `RoundedSuperellipseBorder`, `ShapeBorder` | `circleBorderCodec`, `stadiumBorderCodec`, `roundedRectangleBorderCodec`, `beveledRectangleBorderCodec`, `continuousRectangleBorderCodec`, `roundedSuperellipseBorderCodec`, `shapeBorderCodec` | [lib/src/shape_borders.dart](lib/src/shape_borders.dart) | +| Shape borders | `CircleBorder`, `StadiumBorder`, `RoundedRectangleBorder`, `BeveledRectangleBorder`, `ContinuousRectangleBorder`, `RoundedSuperellipseBorder`, `StarBorder`, `LinearBorder`, `LinearBorderEdge`, `ShapeBorder` | `circleBorderCodec`, `stadiumBorderCodec`, `roundedRectangleBorderCodec`, `beveledRectangleBorderCodec`, `continuousRectangleBorderCodec`, `roundedSuperellipseBorderCodec`, `starBorderCodec`, `linearBorderCodec`, `linearBorderEdgeCodec`, `shapeBorderCodec` | [lib/src/shape_borders.dart](lib/src/shape_borders.dart) | | Shadows | `Shadow`, `BoxShadow` | `shadowCodec`, `boxShadowCodec` | [lib/src/shadows.dart](lib/src/shadows.dart) | | Gradients | `LinearGradient`, `RadialGradient`, `SweepGradient`, `Gradient` | `linearGradientCodec`, `radialGradientCodec`, `sweepGradientCodec`, `gradientCodec` | [lib/src/gradients.dart](lib/src/gradients.dart) | | Image providers | `NetworkImage`, `AssetImage`, `ImageProvider` | `networkImageCodec`, `assetImageCodec`, `imageProviderCodec` | [lib/src/image_providers.dart](lib/src/image_providers.dart) | @@ -76,7 +76,7 @@ codecs do not require it on input. |---|---|---| | `gradientCodec` | `"type"` | `"linear"`, `"radial"`, `"sweep"` | | `imageProviderCodec` | `"type"` | `"network"`, `"asset"` | -| `shapeBorderCodec` | `"type"` | `"circle"`, `"stadium"`, `"roundedRectangle"`, `"beveledRectangle"`, `"continuousRectangle"`, `"roundedSuperellipse"` | +| `shapeBorderCodec` | `"type"` | `"circle"`, `"stadium"`, `"roundedRectangle"`, `"beveledRectangle"`, `"continuousRectangle"`, `"roundedSuperellipse"`, `"star"`, `"linear"` | | `decorationCodec` | `"type"` | `"box"`, `"shape"` | ## Intentionally excluded @@ -107,7 +107,7 @@ silently falling back. as `CircleBorder` — the runtime subtype is lost. The painted output is equivalent to `CircleBorder(eccentricity: 1.0)`. - **Separate plans**: `InputBorder` family (Material — `OutlineInputBorder`, - `UnderlineInputBorder`), `StarBorder`, `LinearBorder`. + `UnderlineInputBorder`). ## JSON Schema export diff --git a/packages/flutter_codec/lib/src/shape_borders.dart b/packages/flutter_codec/lib/src/shape_borders.dart index 62976b33..408f03af 100644 --- a/packages/flutter_codec/lib/src/shape_borders.dart +++ b/packages/flutter_codec/lib/src/shape_borders.dart @@ -7,11 +7,14 @@ import 'package:flutter/painting.dart' BorderSide, CircleBorder, ContinuousRectangleBorder, + LinearBorder, + LinearBorderEdge, OutlinedBorder, RoundedRectangleBorder, RoundedSuperellipseBorder, ShapeBorder, - StadiumBorder; + StadiumBorder, + StarBorder; import 'borders.dart' show borderSideCodec; import 'json_readers.dart'; @@ -138,9 +141,116 @@ final roundedSuperellipseBorderCodec = _rectangleBorderSchema }, ); +/// Codec for [StarBorder]. +/// +/// Composes [borderSideCodec] for [StarBorder.side] (default +/// [BorderSide.none]) with the six shape-control doubles: `points` +/// (default `5`, `>= 2`), `innerRadiusRatio` (default `0.4`, `[0, 1]`), +/// `pointRounding` and `valleyRounding` (each default `0`, each in +/// `[0, 1]`), `rotation` in degrees (default `0`), and `squash` +/// (default `0`, `[0, 1]`). +/// +/// `points` is intentionally typed as a number rather than an integer to +/// match Flutter's constructor: non-integer values produce an additional +/// shorter point or corner to finish the shape, enabling smooth +/// animation between point counts. +/// +/// The constructor also asserts `pointRounding + valleyRounding <= 1`; +/// that cross-field constraint is left to the constructor rather than +/// re-enforced here. The `"type"` discriminator is added by +/// [shapeBorderCodec] when this codec is used as one of its branches. +/// +/// `StarBorder.polygon` round-trips through the regular `StarBorder` +/// constructor: encoding reads the computed `innerRadiusRatio` and +/// `valleyRounding` (always `0` for polygons), so the painted output is +/// identical even though the runtime "this came from `.polygon`" +/// information is lost. +final starBorderCodec = + Ack.object({ + 'side': borderSideCodec.withDefault(BorderSide.none), + 'points': Ack.number().min(2).withDefault(5), + 'innerRadiusRatio': Ack.number().min(0).max(1).withDefault(0.4), + 'pointRounding': Ack.number().min(0).max(1).withDefault(0.0), + 'valleyRounding': Ack.number().min(0).max(1).withDefault(0.0), + 'rotation': Ack.number().withDefault(0.0), + 'squash': Ack.number().min(0).max(1).withDefault(0.0), + }).codec( + decode: (data) => StarBorder( + side: readValue(data, 'side'), + points: readDouble(data, 'points'), + innerRadiusRatio: readDouble(data, 'innerRadiusRatio'), + pointRounding: readDouble(data, 'pointRounding'), + valleyRounding: readDouble(data, 'valleyRounding'), + rotation: readDouble(data, 'rotation'), + squash: readDouble(data, 'squash'), + ), + encode: (value) => { + 'side': value.side, + 'points': value.points, + 'innerRadiusRatio': value.innerRadiusRatio, + 'pointRounding': value.pointRounding, + 'valleyRounding': value.valleyRounding, + 'rotation': value.rotation, + 'squash': value.squash, + }, + ); + +/// Codec for [LinearBorderEdge]. +/// +/// Composes `size` (default `1.0`, `[0, 1]` matching the constructor +/// assert) and `alignment` (default `0.0`, `[-1, 1]` per dartdoc — the +/// constructor does not assert this bound but the codec enforces it). +/// Used as a sub-codec by [linearBorderCodec] for its four edge slots. +final linearBorderEdgeCodec = + Ack.object({ + 'size': Ack.number().min(0).max(1).withDefault(1.0), + 'alignment': Ack.number().min(-1).max(1).withDefault(0.0), + }).codec( + decode: (data) => LinearBorderEdge( + size: readDouble(data, 'size'), + alignment: readDouble(data, 'alignment'), + ), + encode: (value) => {'size': value.size, 'alignment': value.alignment}, + ); + +/// Codec for [LinearBorder]. +/// +/// Composes [borderSideCodec] for [LinearBorder.side] (default +/// [BorderSide.none]) and four optional [LinearBorderEdge] slots — +/// `start`, `end`, `top`, `bottom` — via [linearBorderEdgeCodec]. The +/// convenience factories (`LinearBorder.start`, `.end`, `.top`, +/// `.bottom`, and `LinearBorder.none`) round-trip through the regular +/// constructor since their fields are publicly observable. +/// +/// The `"type"` discriminator is added by [shapeBorderCodec] when this +/// codec is used as one of its branches. +final linearBorderCodec = + Ack.object({ + 'side': borderSideCodec.withDefault(BorderSide.none), + 'start': linearBorderEdgeCodec.nullable().optional(), + 'end': linearBorderEdgeCodec.nullable().optional(), + 'top': linearBorderEdgeCodec.nullable().optional(), + 'bottom': linearBorderEdgeCodec.nullable().optional(), + }).codec( + decode: (data) => LinearBorder( + side: readValue(data, 'side'), + start: readNullableValue(data, 'start'), + end: readNullableValue(data, 'end'), + top: readNullableValue(data, 'top'), + bottom: readNullableValue(data, 'bottom'), + ), + encode: (value) => { + 'side': value.side, + 'start': value.start, + 'end': value.end, + 'top': value.top, + 'bottom': value.bottom, + }, + ); + /// Codec for JSON-safe [ShapeBorder] values, discriminated by `"type"`. /// -/// Covers the six concrete [OutlinedBorder] subtypes Flutter exposes from +/// Covers the eight concrete [OutlinedBorder] subtypes Flutter exposes from /// `package:flutter/painting.dart`: /// /// * `"circle"` → [CircleBorder] @@ -149,10 +259,13 @@ final roundedSuperellipseBorderCodec = _rectangleBorderSchema /// * `"beveledRectangle"` → [BeveledRectangleBorder] /// * `"continuousRectangle"` → [ContinuousRectangleBorder] /// * `"roundedSuperellipse"` → [RoundedSuperellipseBorder] (Flutter 3.27+) +/// * `"star"` → [StarBorder] +/// * `"linear"` → [LinearBorder] /// -/// [InputBorder] subtypes (Material) and the newer [StarBorder] / [LinearBorder] -/// shapes are intentionally not covered here — they belong to separate plans -/// because their constructor surfaces are materially different. +/// `InputBorder` subtypes (Material — `OutlineInputBorder`, +/// `UnderlineInputBorder`) are intentionally not covered here — they live +/// in `package:flutter/material.dart` rather than the painting layer and +/// belong to a separate plan. /// /// `OvalBorder` extends [CircleBorder], so it round-trips as a /// [CircleBorder] (the runtime subtype is lost). Its painted output is @@ -170,5 +283,7 @@ final shapeBorderCodec = Ack.discriminated( 'beveledRectangle': beveledRectangleBorderCodec, 'continuousRectangle': continuousRectangleBorderCodec, 'roundedSuperellipse': roundedSuperellipseBorderCodec, + 'star': starBorderCodec, + 'linear': linearBorderCodec, }, ); diff --git a/packages/flutter_codec/test/shape_borders/shape_borders_test.dart b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart index ae38fe4b..6c9646e8 100644 --- a/packages/flutter_codec/test/shape_borders/shape_borders_test.dart +++ b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart @@ -127,6 +127,122 @@ void main() { }); }); + group('starBorderCodec', () { + test('decodes an empty object as the default StarBorder', () { + expect(starBorderCodec.parse({}), const StarBorder()); + }); + + test('decodes a fully-specified star', () { + expect( + starBorderCodec.parse({ + 'side': {'color': '#FF0000', 'width': 2}, + 'points': 6, + 'innerRadiusRatio': 0.5, + 'pointRounding': 0.1, + 'valleyRounding': 0.2, + 'rotation': 45, + 'squash': 0.3, + }), + const StarBorder( + side: BorderSide(color: Color(0xFFFF0000), width: 2), + points: 6, + innerRadiusRatio: 0.5, + pointRounding: 0.1, + valleyRounding: 0.2, + rotation: 45, + squash: 0.3, + ), + ); + }); + + test('round-trips a populated StarBorder', () { + const original = StarBorder(points: 7, innerRadiusRatio: 0.3); + expect(starBorderCodec.parse(starBorderCodec.encode(original)), original); + }); + + test('encodes StarBorder.polygon as the equivalent regular StarBorder', () { + final polygon = StarBorder.polygon(sides: 6); + final encoded = starBorderCodec.encode(polygon)!; + expect(encoded['points'], 6); + expect(encoded['valleyRounding'], 0.0); + // innerRadiusRatio resolves to the polygon incircle (cos(pi/6)). + expect(encoded['innerRadiusRatio'], closeTo(0.866, 0.001)); + }); + + test('rejects fewer than two points', () { + expect(starBorderCodec.safeParse({'points': 1}).isFail, isTrue); + }); + + test('rejects innerRadiusRatio outside [0, 1]', () { + expect( + starBorderCodec.safeParse({'innerRadiusRatio': 1.5}).isFail, + isTrue, + ); + }); + }); + + group('linearBorderEdgeCodec', () { + test('decodes an empty object as the default LinearBorderEdge', () { + expect(linearBorderEdgeCodec.parse({}), const LinearBorderEdge()); + }); + + test('round-trips a non-default edge', () { + const original = LinearBorderEdge(size: 0.5, alignment: -0.25); + expect( + linearBorderEdgeCodec.parse(linearBorderEdgeCodec.encode(original)), + original, + ); + }); + + test('rejects size outside [0, 1]', () { + expect(linearBorderEdgeCodec.safeParse({'size': 1.5}).isFail, isTrue); + }); + + test('rejects alignment outside [-1, 1]', () { + expect( + linearBorderEdgeCodec.safeParse({'alignment': 1.5}).isFail, + isTrue, + ); + }); + }); + + group('linearBorderCodec', () { + test('decodes an empty object as the default LinearBorder', () { + expect(linearBorderCodec.parse({}), const LinearBorder()); + }); + + test('decodes a bottom-edge LinearBorder', () { + expect( + linearBorderCodec.parse({ + 'bottom': {'size': 0.75, 'alignment': 0.5}, + }), + const LinearBorder( + bottom: LinearBorderEdge(size: 0.75, alignment: 0.5), + ), + ); + }); + + test('round-trips a populated LinearBorder', () { + const original = LinearBorder( + side: BorderSide(color: Color(0xFFFF0000), width: 2), + start: LinearBorderEdge(size: 0.5), + top: LinearBorderEdge(alignment: -1), + ); + expect( + linearBorderCodec.parse(linearBorderCodec.encode(original)), + original, + ); + }); + + test('LinearBorder.start round-trips through the regular constructor', () { + final original = LinearBorder.start(size: 0.5, alignment: 0.25); + expect( + linearBorderCodec.parse(linearBorderCodec.encode(original))!.start, + original.start, + ); + }); + }); + group('shapeBorderCodec', () { test('decodes each discriminator value to the matching ShapeBorder', () { expect(shapeBorderCodec.parse({'type': 'circle'}), const CircleBorder()); @@ -150,6 +266,8 @@ void main() { shapeBorderCodec.parse({'type': 'roundedSuperellipse'}), const RoundedSuperellipseBorder(), ); + expect(shapeBorderCodec.parse({'type': 'star'}), const StarBorder()); + expect(shapeBorderCodec.parse({'type': 'linear'}), const LinearBorder()); }); test('encode dispatches by runtime ShapeBorder subtype', () { @@ -170,6 +288,12 @@ void main() { ); expect(superellipse, containsPair('type', 'roundedSuperellipse')); expect(superellipse, containsPair('side', 'none')); + final star = shapeBorderCodec.encode(const StarBorder()); + expect(star, containsPair('type', 'star')); + expect(star, containsPair('points', 5)); + final linear = shapeBorderCodec.encode(const LinearBorder()); + expect(linear, containsPair('type', 'linear')); + expect(linear, containsPair('start', null)); }); test('rejects an unknown discriminator', () { @@ -180,7 +304,7 @@ void main() { expect(shapeBorderCodec.safeParse({}).isFail, isTrue); }); - test('JSON Schema surfaces all six discriminator branches', () { + test('JSON Schema surfaces all eight discriminator branches', () { final schema = jsonEncode(shapeBorderCodec.toJsonSchema()); for (final value in const [ 'circle', @@ -189,6 +313,8 @@ void main() { 'beveledRectangle', 'continuousRectangle', 'roundedSuperellipse', + 'star', + 'linear', ]) { expect(schema, contains('"$value"')); } From d79702d48dc8b66218f4b6085dd5ef8858af6b74 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 27 May 2026 17:37:06 -0400 Subject: [PATCH 41/53] feat: Add codecs for Flutter widgets and constraints - Introduced `_LazyCodec` for lazy schema resolution. - Added `boxConstraintsCodec` and `constraintsCodec` for handling Flutter's BoxConstraints. - Implemented codecs for `Matrix4`, `Container`, `Key`, and `Text` widgets. - Updated `flutter_codec.dart` to export new codecs. - Added tests for lazy codec, box constraints, matrix4, container, key, and text codecs. --- packages/flutter_codec/lib/flutter_codec.dart | 2 + .../flutter_codec/lib/src/_lazy_codec.dart | 107 ++++++++++ .../flutter_codec/lib/src/constraints.dart | 57 +++++ .../flutter_codec/lib/src/primitives.dart | 1 + .../lib/src/primitives/matrix4.dart | 14 ++ packages/flutter_codec/lib/src/widgets.dart | 4 + .../lib/src/widgets/container.dart | 86 ++++++++ .../flutter_codec/lib/src/widgets/key.dart | 68 ++++++ .../flutter_codec/lib/src/widgets/text.dart | 95 +++++++++ .../flutter_codec/lib/src/widgets/widget.dart | 14 ++ .../flutter_codec/test/_lazy_codec_test.dart | 53 +++++ .../test/constraints/constraints_test.dart | 131 ++++++++++++ .../test/primitives/matrix4_test.dart | 43 ++++ .../test/widgets/container_test.dart | 200 ++++++++++++++++++ .../flutter_codec/test/widgets/key_test.dart | 115 ++++++++++ .../flutter_codec/test/widgets/text_test.dart | 122 +++++++++++ 16 files changed, 1112 insertions(+) create mode 100644 packages/flutter_codec/lib/src/_lazy_codec.dart create mode 100644 packages/flutter_codec/lib/src/constraints.dart create mode 100644 packages/flutter_codec/lib/src/primitives/matrix4.dart create mode 100644 packages/flutter_codec/lib/src/widgets.dart create mode 100644 packages/flutter_codec/lib/src/widgets/container.dart create mode 100644 packages/flutter_codec/lib/src/widgets/key.dart create mode 100644 packages/flutter_codec/lib/src/widgets/text.dart create mode 100644 packages/flutter_codec/lib/src/widgets/widget.dart create mode 100644 packages/flutter_codec/test/_lazy_codec_test.dart create mode 100644 packages/flutter_codec/test/constraints/constraints_test.dart create mode 100644 packages/flutter_codec/test/primitives/matrix4_test.dart create mode 100644 packages/flutter_codec/test/widgets/container_test.dart create mode 100644 packages/flutter_codec/test/widgets/key_test.dart create mode 100644 packages/flutter_codec/test/widgets/text_test.dart diff --git a/packages/flutter_codec/lib/flutter_codec.dart b/packages/flutter_codec/lib/flutter_codec.dart index 6b3ab824..18a2ee68 100644 --- a/packages/flutter_codec/lib/flutter_codec.dart +++ b/packages/flutter_codec/lib/flutter_codec.dart @@ -2,6 +2,7 @@ library; export 'src/borders.dart'; +export 'src/constraints.dart'; export 'src/decoration_image.dart'; export 'src/decorations.dart'; export 'src/enums.dart'; @@ -12,3 +13,4 @@ export 'src/shadows.dart'; export 'src/shape_borders.dart'; export 'src/strut_style.dart'; export 'src/text_style.dart'; +export 'src/widgets.dart'; diff --git a/packages/flutter_codec/lib/src/_lazy_codec.dart b/packages/flutter_codec/lib/src/_lazy_codec.dart new file mode 100644 index 00000000..beb283b1 --- /dev/null +++ b/packages/flutter_codec/lib/src/_lazy_codec.dart @@ -0,0 +1,107 @@ +// ignore_for_file: implementation_imports, invalid_use_of_internal_member +// ignore_for_file: invalid_use_of_protected_member + +import 'package:ack/src/constraints/constraint.dart' show Constraint; +import 'package:ack/src/context.dart' show SchemaContext; +import 'package:ack/src/schemas/schema.dart'; +import 'package:ack/src/validation/schema_result.dart' show SchemaResult; + +/// Private lazy schema wrapper used for recursive Flutter codec graphs. +/// +/// The resolver is intentionally not invoked at construction time; the inner +/// schema is resolved on first parse/encode/schema traversal and then reused. +class _LazyCodec + extends AckSchema + with + FluentSchema>, + WrapperSchema> { + _LazyCodec( + this._resolver, { + super.isNullable, + super.isOptional, + super.description, + super.constraints, + super.refinements, + }); + + final AckSchema Function() _resolver; + late final AckSchema _resolved = _resolver(); + + AckSchema get _inner => _resolved; + + @override + AnyAckSchema get inner => _inner as AnyAckSchema; + + @override + SchemaType get schemaType => _inner.schemaType; + + @override + SchemaResult parseWithContext(Object? value, SchemaContext context) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + + final result = _inner.parseWithContext(value, context); + if (result.isFail) return SchemaResult.fail(result.getError()); + return validateRuntimeWithContext(result.getOrNull(), context); + } + + @override + SchemaResult validateRuntimeWithContext( + Object? value, + SchemaContext context, + ) { + final nullResult = handleNullInput(value, context); + if (nullResult != null) return nullResult; + + final result = _inner.validateRuntimeWithContext(value, context); + if (result.isFail) return SchemaResult.fail(result.getError()); + return applyConstraintsAndRefinements(result.getOrNull()!, context); + } + + @override + SchemaResult encodeWithContext( + Runtime value, + SchemaContext context, + ) { + final validated = validateRuntimeWithContext(value, context); + if (validated.isFail) return SchemaResult.fail(validated.getError()); + return _inner.encodeWithContext(validated.getOrNull()!, context); + } + + @override + _LazyCodec copyWithInner(AnyAckSchema newInner) { + return _LazyCodec( + () => newInner as AckSchema, + isNullable: isNullable, + isOptional: isOptional, + description: description, + constraints: constraints, + refinements: refinements, + ); + } + + @override + _LazyCodec copyWith({ + bool? isNullable, + bool? isOptional, + String? description, + List>? constraints, + List>? refinements, + }) { + return _LazyCodec( + _resolver, + isNullable: isNullable ?? this.isNullable, + isOptional: isOptional ?? this.isOptional, + description: description ?? this.description, + constraints: constraints ?? this.constraints, + refinements: refinements ?? this.refinements, + ); + } +} + +AckSchema lazyCodec< + Boundary extends Object, + Runtime extends Object +>(AckSchema Function() resolver) { + return _LazyCodec(resolver); +} diff --git a/packages/flutter_codec/lib/src/constraints.dart b/packages/flutter_codec/lib/src/constraints.dart new file mode 100644 index 00000000..f920bba0 --- /dev/null +++ b/packages/flutter_codec/lib/src/constraints.dart @@ -0,0 +1,57 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/rendering.dart' show BoxConstraints, Constraints; + +/// Codec for [BoxConstraints]. +/// +/// Bounds are emitted as a full canonical map. `double.infinity` is encoded as +/// `null` because JSON has no non-finite number literal. Omitted min bounds +/// decode to `0`; explicit null min bounds decode to `double.infinity`. +/// Omitted or null max bounds decode to `double.infinity`. +final boxConstraintsCodec = + Ack.object({ + 'minWidth': Ack.number().min(0).nullable().optional(), + 'maxWidth': Ack.number().min(0).nullable().optional(), + 'minHeight': Ack.number().min(0).nullable().optional(), + 'maxHeight': Ack.number().min(0).nullable().optional(), + }).codec( + decode: (data) => BoxConstraints( + minWidth: _readMinBound(data, 'minWidth'), + maxWidth: _readMaxBound(data, 'maxWidth'), + minHeight: _readMinBound(data, 'minHeight'), + maxHeight: _readMaxBound(data, 'maxHeight'), + ), + encode: (value) => { + 'minWidth': _encodeBound(value.minWidth), + 'maxWidth': _encodeBound(value.maxWidth), + 'minHeight': _encodeBound(value.minHeight), + 'maxHeight': _encodeBound(value.maxHeight), + }, + ); + +/// Codec for Flutter [Constraints], discriminated by `"type"`. +/// +/// Fields that are statically typed as [BoxConstraints] should continue to use +/// [boxConstraintsCodec] directly. Use this union only where the runtime +/// constraints subtype is ambiguous. +final DiscriminatedObjectSchema constraintsCodec = + Ack.discriminated( + discriminatorKey: 'type', + schemas: {'box': boxConstraintsCodec}, + ); + +double _readMinBound(JsonMap data, String key) { + if (!data.containsKey(key)) return 0; + final value = data[key]; + if (value == null) return double.infinity; + return (value as num).toDouble(); +} + +double _readMaxBound(JsonMap data, String key) { + final value = data[key]; + if (value == null) return double.infinity; + return (value as num).toDouble(); +} + +double? _encodeBound(double value) { + return value == double.infinity ? null : value; +} diff --git a/packages/flutter_codec/lib/src/primitives.dart b/packages/flutter_codec/lib/src/primitives.dart index 92ff053d..2aef18bb 100644 --- a/packages/flutter_codec/lib/src/primitives.dart +++ b/packages/flutter_codec/lib/src/primitives.dart @@ -6,6 +6,7 @@ export 'primitives/font_feature.dart'; export 'primitives/font_variation.dart'; export 'primitives/font_weight.dart'; export 'primitives/locale.dart'; +export 'primitives/matrix4.dart'; export 'primitives/offset.dart'; export 'primitives/radius.dart'; export 'primitives/rect.dart'; diff --git a/packages/flutter_codec/lib/src/primitives/matrix4.dart b/packages/flutter_codec/lib/src/primitives/matrix4.dart new file mode 100644 index 00000000..629cdd7a --- /dev/null +++ b/packages/flutter_codec/lib/src/primitives/matrix4.dart @@ -0,0 +1,14 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/widgets.dart' show Matrix4; + +/// Codec for [Matrix4]. +/// +/// The encoded list contains exactly 16 finite numbers in [Matrix4.storage] +/// order, which is column-major. +final matrix4Codec = Ack.list(Ack.number()) + .length(16) + .codec( + decode: (values) => + Matrix4.fromList(values.map((value) => value.toDouble()).toList()), + encode: (value) => value.storage.toList(), + ); diff --git a/packages/flutter_codec/lib/src/widgets.dart b/packages/flutter_codec/lib/src/widgets.dart new file mode 100644 index 00000000..b65d82ff --- /dev/null +++ b/packages/flutter_codec/lib/src/widgets.dart @@ -0,0 +1,4 @@ +export 'widgets/container.dart'; +export 'widgets/key.dart'; +export 'widgets/text.dart'; +export 'widgets/widget.dart'; diff --git a/packages/flutter_codec/lib/src/widgets/container.dart b/packages/flutter_codec/lib/src/widgets/container.dart new file mode 100644 index 00000000..06f4d458 --- /dev/null +++ b/packages/flutter_codec/lib/src/widgets/container.dart @@ -0,0 +1,86 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show AlignmentGeometry, Color, Decoration, EdgeInsetsGeometry; +import 'package:flutter/rendering.dart' show BoxConstraints; +import 'package:flutter/widgets.dart' show Clip, Container, Matrix4, Widget; + +import '../_lazy_codec.dart'; +import '../constraints.dart' show boxConstraintsCodec; +import '../decorations.dart' show decorationCodec; +import '../enums.dart' show clipCodec; +import '../json_readers.dart'; +import '../primitives/alignment.dart' show alignmentGeometryCodec; +import '../primitives/color.dart' show colorCodec; +import '../primitives/edge_insets.dart' show edgeInsetsGeometryCodec; +import '../primitives/matrix4.dart' show matrix4Codec; +import 'key.dart' show keyCodec; +import 'widget.dart' show widgetCodec; + +/// Codec for [Container]. +/// +/// `width` and `height` are accepted on decode because they are constructor +/// parameters, but Flutter stores them by tightening [Container.constraints]. +/// Encoding therefore canonicalizes both shorthands to `constraints`. +final CodecSchema containerWidgetCodec = Ack.object({ + 'key': keyCodec.nullable().optional(), + 'alignment': alignmentGeometryCodec.nullable().optional(), + 'padding': edgeInsetsGeometryCodec.nullable().optional(), + 'color': colorCodec.nullable().optional(), + 'isAntiAlias': Ack.boolean().withDefault(true), + 'decoration': decorationCodec.nullable().optional(), + 'foregroundDecoration': decorationCodec.nullable().optional(), + 'width': Ack.number().min(0).nullable().optional(), + 'height': Ack.number().min(0).nullable().optional(), + 'constraints': boxConstraintsCodec.nullable().optional(), + 'margin': edgeInsetsGeometryCodec.nullable().optional(), + 'transform': matrix4Codec.nullable().optional(), + 'transformAlignment': alignmentGeometryCodec.nullable().optional(), + 'clipBehavior': clipCodec.withDefault(Clip.none), + 'child': lazyCodec(() => widgetCodec).nullable().optional(), +}).codec(decode: _decodeContainer, encode: _encodeContainer); + +Container _decodeContainer(JsonMap data) { + return Container( + key: readNullableValue(data, 'key'), + alignment: readNullableValue(data, 'alignment'), + padding: readNullableValue(data, 'padding'), + color: readNullableValue(data, 'color'), + isAntiAlias: readValue(data, 'isAntiAlias'), + decoration: readNullableValue(data, 'decoration'), + foregroundDecoration: readNullableValue( + data, + 'foregroundDecoration', + ), + width: readNullableDouble(data, 'width'), + height: readNullableDouble(data, 'height'), + constraints: readNullableValue(data, 'constraints'), + margin: readNullableValue(data, 'margin'), + transform: readNullableValue(data, 'transform'), + transformAlignment: readNullableValue( + data, + 'transformAlignment', + ), + clipBehavior: readValue(data, 'clipBehavior'), + child: readNullableValue(data, 'child'), + ); +} + +JsonMap _encodeContainer(Container value) { + return { + 'key': value.key, + 'alignment': value.alignment, + 'padding': value.padding, + 'color': value.color, + 'isAntiAlias': value.isAntiAlias, + 'decoration': value.decoration, + 'foregroundDecoration': value.foregroundDecoration, + 'width': null, + 'height': null, + 'constraints': value.constraints, + 'margin': value.margin, + 'transform': value.transform, + 'transformAlignment': value.transformAlignment, + 'clipBehavior': value.clipBehavior, + 'child': value.child, + }; +} diff --git a/packages/flutter_codec/lib/src/widgets/key.dart b/packages/flutter_codec/lib/src/widgets/key.dart new file mode 100644 index 00000000..5200cfc0 --- /dev/null +++ b/packages/flutter_codec/lib/src/widgets/key.dart @@ -0,0 +1,68 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/widgets.dart' show Key, ValueKey; + +import '../json_readers.dart'; + +const _valueKeyType = 'value'; + +enum _ValueKeyValueType { string, int, double, bool } + +/// Codec for portable [Key] values. +/// +/// Only scalar [ValueKey] values are supported. Identity-based keys +/// (`ObjectKey`, `UniqueKey`, and `GlobalKey` variants) cannot be serialized +/// because their equality depends on object identity or Flutter runtime state. +final keyCodec = Ack.discriminated( + discriminatorKey: 'type', + schemas: {_valueKeyType: _valueKeyCodec}, +); + +final _valueKeyCodec = Ack.object({ + 'valueType': Ack.enumCodec(_ValueKeyValueType.values), + 'value': Ack.any(), +}).codec(decode: _decodeKey, encode: _encodeKey); + +Key _decodeKey(JsonMap data) { + final valueType = readValue<_ValueKeyValueType>(data, 'valueType'); + final value = data['value']; + + return switch (valueType) { + _ValueKeyValueType.string when value is String => ValueKey(value), + _ValueKeyValueType.int when value is int => ValueKey(value), + _ValueKeyValueType.double when value is num => ValueKey( + value.toDouble(), + ), + _ValueKeyValueType.bool when value is bool => ValueKey(value), + _ => throw FormatException( + 'ValueKey payload for valueType "${valueType.name}" has invalid ' + 'runtime type ' + '${value.runtimeType}.', + ), + }; +} + +JsonMap _encodeKey(Key value) { + if (value is ValueKey) { + return _encodeValueKey(_ValueKeyValueType.string, value.value); + } + if (value is ValueKey) { + return _encodeValueKey(_ValueKeyValueType.int, value.value); + } + if (value is ValueKey) { + return _encodeValueKey(_ValueKeyValueType.double, value.value); + } + if (value is ValueKey) { + return _encodeValueKey(_ValueKeyValueType.bool, value.value); + } + + throw FormatException( + 'keyCodec can only encode ValueKey; ' + '${value.runtimeType} cannot be serialized because it is identity-based ' + 'or has no portable JSON shape.', + ); +} + +JsonMap _encodeValueKey(_ValueKeyValueType valueType, Object value) => { + 'valueType': valueType, + 'value': value, +}; diff --git a/packages/flutter_codec/lib/src/widgets/text.dart b/packages/flutter_codec/lib/src/widgets/text.dart new file mode 100644 index 00000000..ec263fd1 --- /dev/null +++ b/packages/flutter_codec/lib/src/widgets/text.dart @@ -0,0 +1,95 @@ +import 'dart:ui' show Locale; + +import 'package:ack/ack.dart'; +import 'package:flutter/painting.dart' + show + Color, + StrutStyle, + TextAlign, + TextDirection, + TextHeightBehavior, + TextOverflow, + TextStyle, + TextWidthBasis; +import 'package:flutter/widgets.dart' show Key, Text; + +import '../enums.dart' + show + textAlignCodec, + textDirectionCodec, + textOverflowCodec, + textWidthBasisCodec; +import '../json_readers.dart'; +import '../primitives/color.dart' show colorCodec; +import '../primitives/locale.dart' show localeCodec; +import '../primitives/text_height_behavior.dart' show textHeightBehaviorCodec; +import '../strut_style.dart' show strutStyleCodec; +import '../text_style.dart' show textStyleCodec; +import 'key.dart' show keyCodec; + +/// Codec for plain [Text]. +/// +/// [Text.rich] is intentionally excluded until inline span trees have their own +/// codec. `textScaler` is also excluded because Flutter exposes no stable +/// public state for its concrete implementations. The deprecated +/// `textScaleFactor` constructor parameter is not encoded. +final CodecSchema textWidgetCodec = Ack.object({ + 'key': keyCodec.nullable().optional(), + 'data': Ack.string(), + 'style': textStyleCodec.nullable().optional(), + 'strutStyle': strutStyleCodec.nullable().optional(), + 'textAlign': textAlignCodec.nullable().optional(), + 'textDirection': textDirectionCodec.nullable().optional(), + 'locale': localeCodec.nullable().optional(), + 'softWrap': Ack.boolean().nullable().optional(), + 'overflow': textOverflowCodec.nullable().optional(), + 'maxLines': Ack.integer().min(1).nullable().optional(), + 'semanticsLabel': Ack.string().nullable().optional(), + 'semanticsIdentifier': Ack.string().nullable().optional(), + 'textWidthBasis': textWidthBasisCodec.nullable().optional(), + 'textHeightBehavior': textHeightBehaviorCodec.nullable().optional(), + 'selectionColor': colorCodec.nullable().optional(), +}).codec(decode: _decodeText, encode: _encodeText); + +Text _decodeText(JsonMap data) { + return Text( + readValue(data, 'data'), + key: readNullableValue(data, 'key'), + style: readNullableValue(data, 'style'), + strutStyle: readNullableValue(data, 'strutStyle'), + textAlign: readNullableValue(data, 'textAlign'), + textDirection: readNullableValue(data, 'textDirection'), + locale: readNullableValue(data, 'locale'), + softWrap: readNullableValue(data, 'softWrap'), + overflow: readNullableValue(data, 'overflow'), + maxLines: readNullableValue(data, 'maxLines'), + semanticsLabel: readNullableValue(data, 'semanticsLabel'), + semanticsIdentifier: readNullableValue(data, 'semanticsIdentifier'), + textWidthBasis: readNullableValue(data, 'textWidthBasis'), + textHeightBehavior: readNullableValue( + data, + 'textHeightBehavior', + ), + selectionColor: readNullableValue(data, 'selectionColor'), + ); +} + +JsonMap _encodeText(Text value) { + return { + 'key': value.key, + 'data': value.data, + 'style': value.style, + 'strutStyle': value.strutStyle, + 'textAlign': value.textAlign, + 'textDirection': value.textDirection, + 'locale': value.locale, + 'softWrap': value.softWrap, + 'overflow': value.overflow, + 'maxLines': value.maxLines, + 'semanticsLabel': value.semanticsLabel, + 'semanticsIdentifier': value.semanticsIdentifier, + 'textWidthBasis': value.textWidthBasis, + 'textHeightBehavior': value.textHeightBehavior, + 'selectionColor': value.selectionColor, + }; +} diff --git a/packages/flutter_codec/lib/src/widgets/widget.dart b/packages/flutter_codec/lib/src/widgets/widget.dart new file mode 100644 index 00000000..851ca52b --- /dev/null +++ b/packages/flutter_codec/lib/src/widgets/widget.dart @@ -0,0 +1,14 @@ +import 'package:ack/ack.dart'; +import 'package:flutter/widgets.dart' show Widget; + +import 'container.dart' show containerWidgetCodec; +import 'text.dart' show textWidgetCodec; + +/// Codec for the supported [Widget] union, discriminated by `"type"`. +/// +/// The union starts with [Container]. Additional widget branches register here +/// as they gain first-class codecs. +final DiscriminatedObjectSchema widgetCodec = Ack.discriminated( + discriminatorKey: 'type', + schemas: {'container': containerWidgetCodec, 'text': textWidgetCodec}, +); diff --git a/packages/flutter_codec/test/_lazy_codec_test.dart b/packages/flutter_codec/test/_lazy_codec_test.dart new file mode 100644 index 00000000..46544c01 --- /dev/null +++ b/packages/flutter_codec/test/_lazy_codec_test.dart @@ -0,0 +1,53 @@ +import 'package:ack/ack.dart'; +import 'package:flutter_codec/src/_lazy_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +void main() { + group('lazyCodec', () { + test('does not resolve during construction', () { + var calls = 0; + + lazyCodec(() { + calls++; + return Ack.string(); + }); + + expect(calls, 0); + }); + + test('resolves once and delegates parse and encode', () { + var calls = 0; + final schema = lazyCodec(() { + calls++; + return Ack.string().codec( + decode: (value) => value.toUpperCase(), + encode: (value) => value.toLowerCase(), + ); + }); + + expect(schema.parse('hello'), 'HELLO'); + expect(schema.encode('WORLD'), 'world'); + expect(schema.parse('again'), 'AGAIN'); + expect(calls, 1); + }); + + test('supports nullable and optional combinators', () { + var calls = 0; + final schema = Ack.object({ + 'name': lazyCodec(() { + calls++; + return Ack.string(); + }).nullable().optional(), + }); + + expect(schema.parse({}), isEmpty); + expect(schema.parse({'name': null}), {'name': null}); + expect(schema.encode({}), isEmpty); + expect(schema.encode({'name': null}), {'name': null}); + expect(calls, 0); + + expect(schema.parse({'name': 'ack'}), {'name': 'ack'}); + expect(calls, 1); + }); + }); +} diff --git a/packages/flutter_codec/test/constraints/constraints_test.dart b/packages/flutter_codec/test/constraints/constraints_test.dart new file mode 100644 index 00000000..ef101583 --- /dev/null +++ b/packages/flutter_codec/test/constraints/constraints_test.dart @@ -0,0 +1,131 @@ +import 'package:flutter/rendering.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('boxConstraintsCodec decode', () { + test('decodes an empty object as default constraints', () { + expect(boxConstraintsCodec.parse({}), const BoxConstraints()); + }); + + test('decodes explicit null max bounds as unbounded', () { + expect( + boxConstraintsCodec.parse({ + 'minWidth': 0, + 'maxWidth': null, + 'minHeight': 0, + 'maxHeight': null, + }), + const BoxConstraints(), + ); + }); + + test('decodes explicit null min bounds as infinite', () { + expect( + boxConstraintsCodec.parse({ + 'minWidth': null, + 'maxWidth': null, + 'minHeight': null, + 'maxHeight': null, + }), + const BoxConstraints.expand(), + ); + }); + }); + + group('boxConstraintsCodec encode', () { + test('emits a full canonical map with nulls for infinite bounds', () { + final encoded = boxConstraintsCodec.encode(const BoxConstraints()); + + expect(encoded, { + 'minWidth': 0.0, + 'maxWidth': null, + 'minHeight': 0.0, + 'maxHeight': null, + }); + expectJsonSafe(encoded); + }); + + test('round-trips fully populated finite constraints', () { + const constraints = BoxConstraints( + minWidth: 1, + maxWidth: 10, + minHeight: 2, + maxHeight: 20, + ); + + final encoded = boxConstraintsCodec.encode(constraints); + + expect(boxConstraintsCodec.parse(encoded), constraints); + expectJsonSafe(encoded); + }); + + test('round-trips tightFor constraints', () { + final constraints = BoxConstraints.tightFor(width: 12, height: 34); + + expect( + boxConstraintsCodec.parse(boxConstraintsCodec.encode(constraints)!), + constraints, + ); + }); + + test('round-trips expand constraints', () { + const constraints = BoxConstraints.expand(); + + expect( + boxConstraintsCodec.parse(boxConstraintsCodec.encode(constraints)!), + constraints, + ); + }); + }); + + group('constraintsCodec', () { + test('parses a box constraints branch', () { + final parsed = constraintsCodec.parse({ + 'type': 'box', + 'minWidth': 1, + 'maxWidth': 10, + 'minHeight': 2, + 'maxHeight': 20, + }); + + expect( + parsed, + const BoxConstraints( + minWidth: 1, + maxWidth: 10, + minHeight: 2, + maxHeight: 20, + ), + ); + expect(parsed, isA()); + }); + + test('encodes BoxConstraints with a discriminator', () { + const constraints = BoxConstraints( + minWidth: 1, + maxWidth: 10, + minHeight: 2, + maxHeight: 20, + ); + + final encoded = constraintsCodec.encode(constraints); + + expect(encoded, { + 'type': 'box', + 'minWidth': 1.0, + 'maxWidth': 10.0, + 'minHeight': 2.0, + 'maxHeight': 20.0, + }); + expect(constraintsCodec.parse(encoded), constraints); + expectJsonSafe(encoded); + }); + + test('rejects an unknown constraints discriminator', () { + expect(constraintsCodec.safeParse({'type': 'sliver'}).isFail, isTrue); + }); + }); +} diff --git a/packages/flutter_codec/test/primitives/matrix4_test.dart b/packages/flutter_codec/test/primitives/matrix4_test.dart new file mode 100644 index 00000000..71095632 --- /dev/null +++ b/packages/flutter_codec/test/primitives/matrix4_test.dart @@ -0,0 +1,43 @@ +import 'package:flutter/widgets.dart' show Matrix4; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('matrix4Codec', () { + test('round-trips the identity matrix', () { + final matrix = Matrix4.identity(); + final encoded = matrix4Codec.encode(matrix); + + expect(matrix4Codec.parse(encoded), matrix); + expectJsonSafe(encoded); + }); + + test('round-trips a transformed matrix in column-major storage order', () { + final matrix = Matrix4.identity() + ..translateByDouble(10.0, 20.0, 30.0, 1.0) + ..rotateZ(0.5); + + final encoded = matrix4Codec.encode(matrix); + + expect(encoded, matrix.storage.toList()); + expect(matrix4Codec.parse(encoded), matrix); + expectJsonSafe(encoded); + }); + + test('defensively copies parsed storage', () { + final storage = Matrix4.identity().storage.toList(); + final parsed = matrix4Codec.parse(storage)!; + + storage[0] = 10; + + expect(parsed, Matrix4.identity()); + }); + + test('rejects lists that are not exactly 16 items long', () { + expect(matrix4Codec.safeParse(List.filled(15, 0)).isFail, isTrue); + expect(matrix4Codec.safeParse(List.filled(17, 0)).isFail, isTrue); + }); + }); +} diff --git a/packages/flutter_codec/test/widgets/container_test.dart b/packages/flutter_codec/test/widgets/container_test.dart new file mode 100644 index 00000000..8481ce3e --- /dev/null +++ b/packages/flutter_codec/test/widgets/container_test.dart @@ -0,0 +1,200 @@ +import 'package:flutter/widgets.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('containerWidgetCodec decode', () { + test('decodes an empty object as the default Container shape', () { + final parsed = containerWidgetCodec.parse({})!; + + expect(parsed.key, isNull); + expect(parsed.alignment, isNull); + expect(parsed.padding, isNull); + expect(parsed.color, isNull); + expect(parsed.isAntiAlias, isTrue); + expect(parsed.decoration, isNull); + expect(parsed.foregroundDecoration, isNull); + expect(parsed.constraints, isNull); + expect(parsed.margin, isNull); + expect(parsed.transform, isNull); + expect(parsed.transformAlignment, isNull); + expect(parsed.clipBehavior, Clip.none); + expect(parsed.child, isNull); + }); + + test('accepts width and height constructor shorthands', () { + final parsed = containerWidgetCodec.parse({'width': 10, 'height': 20})!; + + expect( + parsed.constraints, + BoxConstraints.tightFor(width: 10, height: 20), + ); + }); + }); + + group('containerWidgetCodec encode', () { + test('emits a full canonical map with explicit nulls for defaults', () { + final encoded = containerWidgetCodec.encode(Container()); + + expect(encoded, { + 'key': null, + 'alignment': null, + 'padding': null, + 'color': null, + 'isAntiAlias': true, + 'decoration': null, + 'foregroundDecoration': null, + 'width': null, + 'height': null, + 'constraints': null, + 'margin': null, + 'transform': null, + 'transformAlignment': null, + 'clipBehavior': 'none', + 'child': null, + }); + expectJsonSafe(encoded); + }); + + test('round-trips a color-only container through a stable encoding', () { + final original = Container(color: const Color(0xFF2196F3)); + final encoded = containerWidgetCodec.encode(original); + final parsed = containerWidgetCodec.parse(encoded)!; + + expect(containerWidgetCodec.encode(parsed), encoded); + expect(parsed.color, original.color); + expect(parsed.decoration, isNull); + expectJsonSafe(encoded); + }); + + test( + 'round-trips a populated decorated container through stable encoding', + () { + final transform = Matrix4.identity() + ..translateByDouble(4.0, 8.0, 0.0, 1.0) + ..rotateZ(0.25); + final constraints = const BoxConstraints( + minWidth: 10, + maxWidth: 100, + minHeight: 20, + maxHeight: 200, + ); + final original = Container( + key: const ValueKey('shell'), + alignment: Alignment.centerRight, + padding: const EdgeInsets.all(8), + isAntiAlias: false, + decoration: BoxDecoration( + color: const Color(0xFFE0F2F1), + borderRadius: BorderRadius.circular(6), + ), + foregroundDecoration: BoxDecoration( + border: Border.all(color: const Color(0xFF004D40)), + ), + constraints: constraints, + margin: const EdgeInsetsDirectional.only(start: 2, end: 4), + transform: transform, + transformAlignment: Alignment.bottomLeft, + clipBehavior: Clip.antiAlias, + child: Container(color: const Color(0xFFFF0000)), + ); + + final encoded = containerWidgetCodec.encode(original); + final parsed = containerWidgetCodec.parse(encoded)!; + + expect(containerWidgetCodec.encode(parsed), encoded); + expect(parsed.key, original.key); + expect(parsed.padding, original.padding); + expect(parsed.isAntiAlias, isFalse); + expect(parsed.decoration, isA()); + expect(parsed.foregroundDecoration, isA()); + expect(parsed.constraints, constraints); + expect(parsed.margin, original.margin); + expect(parsed.transform, transform); + expect(parsed.transformAlignment, original.transformAlignment); + expect(parsed.clipBehavior, Clip.antiAlias); + expect(parsed.child, isA()); + expectJsonSafe(encoded); + }, + ); + + test('canonicalizes width and height to constraints on encode', () { + final original = Container(width: 10, height: 20); + final encoded = containerWidgetCodec.encode(original); + + expect(encoded!['width'], isNull); + expect(encoded['height'], isNull); + expect( + encoded['constraints'], + boxConstraintsCodec.encode( + BoxConstraints.tightFor(width: 10, height: 20), + ), + ); + expect( + containerWidgetCodec.encode(containerWidgetCodec.parse(encoded)), + encoded, + ); + }); + + test('uses the direct BoxConstraints shape without a discriminator', () { + final original = Container( + constraints: const BoxConstraints( + minWidth: 1, + maxWidth: 10, + minHeight: 2, + maxHeight: 20, + ), + ); + final encoded = containerWidgetCodec.encode(original)!; + final constraints = encoded['constraints']! as Map; + + expect(constraints.containsKey('type'), isFalse); + expect(constraints, { + 'minWidth': 1.0, + 'maxWidth': 10.0, + 'minHeight': 2.0, + 'maxHeight': 20.0, + }); + expect( + containerWidgetCodec.encode(containerWidgetCodec.parse(encoded)), + encoded, + ); + expectJsonSafe(encoded); + }); + }); + + group('containerWidgetCodec rejects invalid input', () { + test('rejects color and decoration together', () { + expect( + containerWidgetCodec.safeParse({ + 'color': '#FFFFFF', + 'decoration': {'type': 'box'}, + }).isFail, + isTrue, + ); + }); + }); + + group('widgetCodec', () { + test('round-trips nested containers through the widget union', () { + final original = Container( + padding: const EdgeInsets.all(4), + child: Container( + key: const ValueKey(7), + constraints: const BoxConstraints.tightFor(width: 12), + ), + ); + + final encoded = widgetCodec.encode(original); + final parsed = widgetCodec.parse(encoded)!; + + expect(widgetCodec.encode(parsed), encoded); + expect(encoded!['type'], 'container'); + expect(parsed, isA()); + expect((parsed as Container).child, isA()); + expectJsonSafe(encoded); + }); + }); +} diff --git a/packages/flutter_codec/test/widgets/key_test.dart b/packages/flutter_codec/test/widgets/key_test.dart new file mode 100644 index 00000000..b0f8905c --- /dev/null +++ b/packages/flutter_codec/test/widgets/key_test.dart @@ -0,0 +1,115 @@ +import 'package:ack/ack.dart' show SchemaNestedError; +import 'package:flutter/widgets.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('keyCodec', () { + test('round-trips supported ValueKey scalar types', () { + final cases = [ + const ValueKey('foo'), + const ValueKey(1), + const ValueKey(1.5), + const ValueKey(true), + ]; + + for (final key in cases) { + final encoded = keyCodec.encode(key); + + expect(keyCodec.parse(encoded), key); + expectJsonSafe(encoded); + } + }); + + test('encodes Key(String) sugar as a string ValueKey', () { + final encoded = keyCodec.encode(const Key('foo')); + + expect(encoded, {'type': 'value', 'valueType': 'string', 'value': 'foo'}); + expect(keyCodec.parse(encoded), const ValueKey('foo')); + expectJsonSafe(encoded); + }); + + test('keeps int and double keys distinct', () { + final intKey = keyCodec.parse({ + 'type': 'value', + 'valueType': 'int', + 'value': 1, + }); + final doubleKey = keyCodec.parse({ + 'type': 'value', + 'valueType': 'double', + 'value': 1, + }); + + expect(intKey, const ValueKey(1)); + expect(doubleKey, const ValueKey(1)); + expect(intKey, isNot(doubleKey)); + }); + + test('rejects identity-based key subtypes on encode', () { + final cases = [const ObjectKey('x'), UniqueKey(), GlobalKey()]; + + for (final key in cases) { + _expectEncodeFailureContains(key, key.runtimeType.toString()); + _expectEncodeFailureContains(key, 'cannot be serialized'); + } + }); + + test('rejects unsupported ValueKey value types on encode', () { + final cases = [ + const ValueKey(1), + const ValueKey('foo'), + const ValueKey>([1]), + ]; + + for (final key in cases) { + _expectEncodeFailureContains(key, key.runtimeType.toString()); + _expectEncodeFailureContains(key, 'no portable JSON shape'); + } + }); + + test('rejects invalid value-key payloads', () { + final invalidCases = { + 'unknown valueType': { + 'type': 'value', + 'valueType': 'date', + 'value': '2026-05-27', + }, + 'generic number valueType': { + 'type': 'value', + 'valueType': 'number', + 'value': 1, + }, + 'missing value': {'type': 'value', 'valueType': 'string'}, + 'int type mismatch': { + 'type': 'value', + 'valueType': 'int', + 'value': 'oops', + }, + 'string type mismatch': { + 'type': 'value', + 'valueType': 'string', + 'value': 1, + }, + }; + + invalidCases.forEach((name, input) { + expect(keyCodec.safeParse(input).isFail, isTrue, reason: name); + }); + }); + }); +} + +void _expectEncodeFailureContains(Key key, String fragment) { + final result = keyCodec.safeEncode(key); + + expect(result.isFail, isTrue); + final error = result.getError(); + expect(error, isA()); + expect( + (error as SchemaNestedError).errors.single.toString(), + contains(fragment), + ); +} diff --git a/packages/flutter_codec/test/widgets/text_test.dart b/packages/flutter_codec/test/widgets/text_test.dart new file mode 100644 index 00000000..dbb32a01 --- /dev/null +++ b/packages/flutter_codec/test/widgets/text_test.dart @@ -0,0 +1,122 @@ +import 'package:flutter/widgets.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +void main() { + group('textWidgetCodec decode', () { + test('decodes a minimal data object', () { + final parsed = textWidgetCodec.parse({'data': 'hello'})!; + + expect(parsed.data, 'hello'); + expect(parsed.style, isNull); + expect(parsed.textScaler, isNull); + }); + }); + + group('textWidgetCodec encode', () { + test('emits a full canonical map with explicit nulls for defaults', () { + final encoded = textWidgetCodec.encode(const Text('hello')); + + expect(encoded, { + 'key': null, + 'data': 'hello', + 'style': null, + 'strutStyle': null, + 'textAlign': null, + 'textDirection': null, + 'locale': null, + 'softWrap': null, + 'overflow': null, + 'maxLines': null, + 'semanticsLabel': null, + 'semanticsIdentifier': null, + 'textWidthBasis': null, + 'textHeightBehavior': null, + 'selectionColor': null, + }); + expect(encoded!.containsKey('textScaler'), isFalse); + expect(encoded.containsKey('textScaleFactor'), isFalse); + expectJsonSafe(encoded); + }); + + test('round-trips a fully populated Text through stable encoding', () { + const original = Text( + 'hello', + key: ValueKey('copy'), + style: TextStyle( + color: Color(0xFF102030), + fontSize: 18, + fontWeight: FontWeight.w600, + ), + strutStyle: StrutStyle(fontSize: 18, height: 1.25), + textAlign: TextAlign.center, + textDirection: TextDirection.rtl, + locale: Locale('en', 'US'), + softWrap: false, + overflow: TextOverflow.ellipsis, + maxLines: 2, + semanticsLabel: 'label', + semanticsIdentifier: 'copy-id', + textWidthBasis: TextWidthBasis.longestLine, + textHeightBehavior: TextHeightBehavior( + applyHeightToFirstAscent: false, + applyHeightToLastDescent: true, + ), + selectionColor: Color(0x330000FF), + ); + + final encoded = textWidgetCodec.encode(original); + final parsed = textWidgetCodec.parse(encoded)!; + + expect(textWidgetCodec.encode(parsed), encoded); + expect(parsed.key, original.key); + expect(parsed.data, original.data); + expect(parsed.style, original.style); + expect(parsed.strutStyle, original.strutStyle); + expect(parsed.textAlign, original.textAlign); + expect(parsed.textDirection, original.textDirection); + expect(parsed.locale, original.locale); + expect(parsed.softWrap, original.softWrap); + expect(parsed.overflow, original.overflow); + expect(parsed.maxLines, original.maxLines); + expect(parsed.semanticsLabel, original.semanticsLabel); + expect(parsed.semanticsIdentifier, original.semanticsIdentifier); + expect(parsed.textWidthBasis, original.textWidthBasis); + expect(parsed.textHeightBehavior, original.textHeightBehavior); + expect(parsed.selectionColor, original.selectionColor); + expectJsonSafe(encoded); + }); + + test('does not encode opaque textScaler state', () { + final encoded = textWidgetCodec.encode( + Text('scaled', textScaler: TextScaler.linear(1.5)), + ); + + expect(encoded!.containsKey('textScaler'), isFalse); + expect(textWidgetCodec.parse(encoded)!.textScaler, isNull); + expectJsonSafe(encoded); + }); + }); + + group('widgetCodec', () { + test('round-trips Container(child: Text) across widget branches', () { + final original = Container( + padding: const EdgeInsets.all(8), + child: const Text('hi', textAlign: TextAlign.center), + ); + + final encoded = widgetCodec.encode(original); + final parsed = widgetCodec.parse(encoded)!; + + expect(widgetCodec.encode(parsed), encoded); + expect(parsed, isA()); + final child = (parsed as Container).child; + expect(child, isA()); + expect((child as Text).data, 'hi'); + expect(child.textAlign, TextAlign.center); + expectJsonSafe(encoded); + }); + }); +} From c8cf2ea8ede73b7da2b67c6e54433f8dbe490031 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 28 May 2026 14:56:43 -0400 Subject: [PATCH 42/53] refactor(flutter_codec): use Ack.lazy for recursive widget child Replace the local _LazyCodec shim (and its test) with Ack.lazy, now available upstream in ack. The recursion mechanic for Container.child is unchanged; only the lazy primitive moves from a private shim to the shared Ack.lazy API. --- .../flutter_codec/lib/src/_lazy_codec.dart | 107 ------------------ .../lib/src/widgets/container.dart | 6 +- .../flutter_codec/test/_lazy_codec_test.dart | 53 --------- 3 files changed, 4 insertions(+), 162 deletions(-) delete mode 100644 packages/flutter_codec/lib/src/_lazy_codec.dart delete mode 100644 packages/flutter_codec/test/_lazy_codec_test.dart diff --git a/packages/flutter_codec/lib/src/_lazy_codec.dart b/packages/flutter_codec/lib/src/_lazy_codec.dart deleted file mode 100644 index beb283b1..00000000 --- a/packages/flutter_codec/lib/src/_lazy_codec.dart +++ /dev/null @@ -1,107 +0,0 @@ -// ignore_for_file: implementation_imports, invalid_use_of_internal_member -// ignore_for_file: invalid_use_of_protected_member - -import 'package:ack/src/constraints/constraint.dart' show Constraint; -import 'package:ack/src/context.dart' show SchemaContext; -import 'package:ack/src/schemas/schema.dart'; -import 'package:ack/src/validation/schema_result.dart' show SchemaResult; - -/// Private lazy schema wrapper used for recursive Flutter codec graphs. -/// -/// The resolver is intentionally not invoked at construction time; the inner -/// schema is resolved on first parse/encode/schema traversal and then reused. -class _LazyCodec - extends AckSchema - with - FluentSchema>, - WrapperSchema> { - _LazyCodec( - this._resolver, { - super.isNullable, - super.isOptional, - super.description, - super.constraints, - super.refinements, - }); - - final AckSchema Function() _resolver; - late final AckSchema _resolved = _resolver(); - - AckSchema get _inner => _resolved; - - @override - AnyAckSchema get inner => _inner as AnyAckSchema; - - @override - SchemaType get schemaType => _inner.schemaType; - - @override - SchemaResult parseWithContext(Object? value, SchemaContext context) { - final nullResult = handleNullInput(value, context); - if (nullResult != null) return nullResult; - - final result = _inner.parseWithContext(value, context); - if (result.isFail) return SchemaResult.fail(result.getError()); - return validateRuntimeWithContext(result.getOrNull(), context); - } - - @override - SchemaResult validateRuntimeWithContext( - Object? value, - SchemaContext context, - ) { - final nullResult = handleNullInput(value, context); - if (nullResult != null) return nullResult; - - final result = _inner.validateRuntimeWithContext(value, context); - if (result.isFail) return SchemaResult.fail(result.getError()); - return applyConstraintsAndRefinements(result.getOrNull()!, context); - } - - @override - SchemaResult encodeWithContext( - Runtime value, - SchemaContext context, - ) { - final validated = validateRuntimeWithContext(value, context); - if (validated.isFail) return SchemaResult.fail(validated.getError()); - return _inner.encodeWithContext(validated.getOrNull()!, context); - } - - @override - _LazyCodec copyWithInner(AnyAckSchema newInner) { - return _LazyCodec( - () => newInner as AckSchema, - isNullable: isNullable, - isOptional: isOptional, - description: description, - constraints: constraints, - refinements: refinements, - ); - } - - @override - _LazyCodec copyWith({ - bool? isNullable, - bool? isOptional, - String? description, - List>? constraints, - List>? refinements, - }) { - return _LazyCodec( - _resolver, - isNullable: isNullable ?? this.isNullable, - isOptional: isOptional ?? this.isOptional, - description: description ?? this.description, - constraints: constraints ?? this.constraints, - refinements: refinements ?? this.refinements, - ); - } -} - -AckSchema lazyCodec< - Boundary extends Object, - Runtime extends Object ->(AckSchema Function() resolver) { - return _LazyCodec(resolver); -} diff --git a/packages/flutter_codec/lib/src/widgets/container.dart b/packages/flutter_codec/lib/src/widgets/container.dart index 06f4d458..907f7048 100644 --- a/packages/flutter_codec/lib/src/widgets/container.dart +++ b/packages/flutter_codec/lib/src/widgets/container.dart @@ -4,7 +4,6 @@ import 'package:flutter/painting.dart' import 'package:flutter/rendering.dart' show BoxConstraints; import 'package:flutter/widgets.dart' show Clip, Container, Matrix4, Widget; -import '../_lazy_codec.dart'; import '../constraints.dart' show boxConstraintsCodec; import '../decorations.dart' show decorationCodec; import '../enums.dart' show clipCodec; @@ -36,7 +35,10 @@ final CodecSchema containerWidgetCodec = Ack.object({ 'transform': matrix4Codec.nullable().optional(), 'transformAlignment': alignmentGeometryCodec.nullable().optional(), 'clipBehavior': clipCodec.withDefault(Clip.none), - 'child': lazyCodec(() => widgetCodec).nullable().optional(), + 'child': Ack.lazy( + 'widgetCodec', + () => widgetCodec, + ).nullable().optional(), }).codec(decode: _decodeContainer, encode: _encodeContainer); Container _decodeContainer(JsonMap data) { diff --git a/packages/flutter_codec/test/_lazy_codec_test.dart b/packages/flutter_codec/test/_lazy_codec_test.dart deleted file mode 100644 index 46544c01..00000000 --- a/packages/flutter_codec/test/_lazy_codec_test.dart +++ /dev/null @@ -1,53 +0,0 @@ -import 'package:ack/ack.dart'; -import 'package:flutter_codec/src/_lazy_codec.dart'; -import 'package:flutter_test/flutter_test.dart'; - -void main() { - group('lazyCodec', () { - test('does not resolve during construction', () { - var calls = 0; - - lazyCodec(() { - calls++; - return Ack.string(); - }); - - expect(calls, 0); - }); - - test('resolves once and delegates parse and encode', () { - var calls = 0; - final schema = lazyCodec(() { - calls++; - return Ack.string().codec( - decode: (value) => value.toUpperCase(), - encode: (value) => value.toLowerCase(), - ); - }); - - expect(schema.parse('hello'), 'HELLO'); - expect(schema.encode('WORLD'), 'world'); - expect(schema.parse('again'), 'AGAIN'); - expect(calls, 1); - }); - - test('supports nullable and optional combinators', () { - var calls = 0; - final schema = Ack.object({ - 'name': lazyCodec(() { - calls++; - return Ack.string(); - }).nullable().optional(), - }); - - expect(schema.parse({}), isEmpty); - expect(schema.parse({'name': null}), {'name': null}); - expect(schema.encode({}), isEmpty); - expect(schema.encode({'name': null}), {'name': null}); - expect(calls, 0); - - expect(schema.parse({'name': 'ack'}), {'name': 'ack'}); - expect(calls, 1); - }); - }); -} From c752d8fabca94581781b70d74c6b31e3f09485b0 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Thu, 28 May 2026 17:27:35 -0400 Subject: [PATCH 43/53] chore: register packages/flutter_codec in workspace Required for the package to resolve under resolution: workspace. --- pubspec.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/pubspec.yaml b/pubspec.yaml index b25e295c..72c2a82b 100644 --- a/pubspec.yaml +++ b/pubspec.yaml @@ -11,6 +11,7 @@ workspace: - packages/ack_generator - packages/ack_firebase_ai - packages/ack_json_schema_builder + - packages/flutter_codec - example dependencies: From e9ba420184fe1bcfce173031a509427f80414e62 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Tue, 9 Jun 2026 13:47:41 -0400 Subject: [PATCH 44/53] fix(flutter_codec): correct version floor, round-trip bugs, loud-fail unencodable inputs Review-driven hardening of the flutter_codec package. - Bump Flutter floor to >=3.32.0: the package uses RoundedSuperellipseBorder and Text.semanticsIdentifier (3.32-only) and WebHtmlElementStrategy (3.29) unconditionally, so the prior >=3.27.0 would not compile on 3.27-3.31. - Fix font-family packing corruption: never infer a package when the recovered family is null (decode was folding it into the literal 'packages//null'). - fontWeightCodec: accept and emit integer variable-font weights [1,1000] and drop the deprecated FontWeight.index path; canonical weights still emit "wNNN". - Throw on encode for unrepresentable, equality-affecting inputs instead of dropping them silently: Gradient.transform and DecorationImage.colorFilter (and fix the false "colorFilter excluded from ==" doc). - Enforce Container / BoxDecoration / ShapeDecoration cross-field invariants with .refine so validation holds in release builds (constructor asserts are stripped). - Add readDoubleList; document the 8-bit-sRGB color loss and the StarBorder rotation/polygon lossy narrowing; sync README/CHANGELOG coverage to include the widgets/constraints/matrix4 codecs and their unions. - Add 26 regression/characterization tests (556 total). flutter analyze: clean; flutter test: 556 pass; dart format: clean. --- packages/flutter_codec/CHANGELOG.md | 16 +++-- packages/flutter_codec/README.md | 46 +++++++++--- .../lib/src/decoration_image.dart | 42 +++++++---- .../flutter_codec/lib/src/decorations.dart | 61 ++++++++++------ .../lib/src/font_family_packing.dart | 18 ++++- packages/flutter_codec/lib/src/gradients.dart | 70 ++++++++++++------- .../flutter_codec/lib/src/json_readers.dart | 11 +++ .../lib/src/primitives/color.dart | 7 ++ .../lib/src/primitives/font_weight.dart | 58 ++++++++------- .../flutter_codec/lib/src/shape_borders.dart | 5 ++ .../lib/src/widgets/container.dart | 53 ++++++++------ packages/flutter_codec/pubspec.yaml | 4 +- .../decoration_image_test.dart | 12 ++++ .../test/decorations/decorations_test.dart | 29 ++++++++ .../test/gradients/gradients_test.dart | 24 +++++++ .../flutter_codec/test/json_readers_test.dart | 10 +++ .../test/primitives/color_test.dart | 31 ++++++++ .../test/primitives/edge_insets_test.dart | 10 +++ .../test/primitives/font_weight_test.dart | 25 ++++++- .../test/primitives/matrix4_test.dart | 8 +++ .../shape_borders/shape_borders_test.dart | 36 ++++++++++ .../test/strut_style/strut_style_test.dart | 13 ++++ .../test/text_style/text_style_test.dart | 25 +++++++ .../test/widgets/container_test.dart | 7 ++ .../flutter_codec/test/widgets/key_test.dart | 15 ++++ 25 files changed, 514 insertions(+), 122 deletions(-) diff --git a/packages/flutter_codec/CHANGELOG.md b/packages/flutter_codec/CHANGELOG.md index 24fc93ad..07f6ea73 100644 --- a/packages/flutter_codec/CHANGELOG.md +++ b/packages/flutter_codec/CHANGELOG.md @@ -2,8 +2,9 @@ ## 0.1.0 -Initial release. JSON value codecs for Flutter's painting layer, built on -[`ack`](../ack/README.md). +Initial release. JSON value codecs for Flutter's painting and rendering layers, +plus a small set of widget codecs, built on [`ack`](../ack/README.md). +Requires Flutter `>=3.32.0`. - **Primitives**: `Color`, `Offset`, `Radius`, `Rect`, `Alignment` / `AlignmentDirectional` / `AlignmentGeometry`, `EdgeInsets` / @@ -18,8 +19,7 @@ Initial release. JSON value codecs for Flutter's painting layer, built on - **Shape borders** (discriminated by `"type"`): `CircleBorder`, `StadiumBorder`, `RoundedRectangleBorder`, `BeveledRectangleBorder`, `ContinuousRectangleBorder`, `RoundedSuperellipseBorder`, `StarBorder`, - `LinearBorder` (with `LinearBorderEdge`) → `ShapeBorder`. Requires Flutter - `>=3.27.0` for `RoundedSuperellipseBorder`. + `LinearBorder` (with `LinearBorderEdge`) → `ShapeBorder`. - **Shadows**: `Shadow`, `BoxShadow`. - **Gradients** (discriminated by `"type"`): `LinearGradient`, `RadialGradient`, `SweepGradient` → `Gradient`. @@ -31,5 +31,13 @@ Initial release. JSON value codecs for Flutter's painting layer, built on lists), `StrutStyle` (sibling layout style), `TextHeightBehavior`. - **Decorations** (discriminated by `"type"`): `BoxDecoration`, `ShapeDecoration` → `Decoration`. +- **Constraints**: `BoxConstraints`, `Constraints` (discriminated by `"type"`). +- **Matrix**: `Matrix4`. +- **Widgets**: `Container`, `Text`, and portable `Key` / `ValueKey` codecs, + plus a `widgetCodec` union (discriminated by `"type"`). + +`FontWeight` accepts and emits arbitrary integer weights (`[1, 1000]`) for +variable fonts in addition to the `"w100"`–`"w900"` / `"normal"` / `"bold"` +aliases. Every codec exposes `.parse`, `.safeParse`, `.encode`, and `.toJsonSchema`. diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index 57a41168..166458c0 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -1,6 +1,7 @@ # flutter_codec -JSON value codecs for Flutter's painting layer, built on +JSON value codecs for Flutter's painting and rendering layers — plus a small, +growing set of widget codecs (`Container`, `Text`, `Key`) — built on [`ack`](../ack/README.md). Every codec is an Ack `CodecSchema` and exposes the same surface: @@ -65,12 +66,17 @@ assert(roundTripped == decoration); | Text style | `TextStyle` | `textStyleCodec` | [lib/src/text_style.dart](lib/src/text_style.dart) | | Strut style | `StrutStyle` | `strutStyleCodec` | [lib/src/strut_style.dart](lib/src/strut_style.dart) | | Decorations | `BoxDecoration`, `ShapeDecoration`, `Decoration` | `boxDecorationCodec`, `shapeDecorationCodec`, `decorationCodec` | [lib/src/decorations.dart](lib/src/decorations.dart) | +| Constraints | `BoxConstraints`, `Constraints` | `boxConstraintsCodec`, `constraintsCodec` | [lib/src/constraints.dart](lib/src/constraints.dart) | +| Matrix | `Matrix4` | `matrix4Codec` | [lib/src/primitives/matrix4.dart](lib/src/primitives/matrix4.dart) | +| Widgets | `Container`, `Text`, `Key` (`ValueKey`) | `containerWidgetCodec`, `textWidgetCodec`, `keyCodec`, `widgetCodec` | [lib/src/widgets/](lib/src/widgets/) | ## Discriminated unions Polymorphic types are encoded as `{ "type": "", ...fields }`. The -discriminator key is injected by the union at encode time; standalone branch -codecs do not require it on input. +discriminator key is injected by the union at encode time. Most standalone +branch codecs do not require it on input; the gradient branches are the +exception — they embed a `"type"` literal in their own schema, so they self-tag +and accept (and require) the key on input as well. | Union | Discriminator key | Branches | |---|---|---| @@ -78,6 +84,9 @@ codecs do not require it on input. | `imageProviderCodec` | `"type"` | `"network"`, `"asset"` | | `shapeBorderCodec` | `"type"` | `"circle"`, `"stadium"`, `"roundedRectangle"`, `"beveledRectangle"`, `"continuousRectangle"`, `"roundedSuperellipse"`, `"star"`, `"linear"` | | `decorationCodec` | `"type"` | `"box"`, `"shape"` | +| `keyCodec` | `"type"` | `"value"` | +| `widgetCodec` | `"type"` | `"container"`, `"text"` | +| `constraintsCodec` | `"type"` | `"box"` | ## Intentionally excluded @@ -96,16 +105,33 @@ silently falling back. surface is `toString()`, which is a debug format Flutter is free to change between releases. A bidirectional codec is not achievable here without introducing parallel descriptor types; the same goes for - `DecorationImage.colorFilter` (which embeds a `ColorFilter`). + `DecorationImage.colorFilter` (which embeds a `ColorFilter`). Because + `colorFilter` *is* part of `DecorationImage` equality, encoding a + `DecorationImage` that carries one **throws** rather than silently dropping it. +- **No portable JSON shape (encode throws)**: `Gradient.transform` + (`GradientTransform` is an open abstract type — encoding a transformed + gradient throws rather than dropping it silently). - **No portable JSON shape**: `Paint`, `Path`, `Shader`, `TextStyle.foreground` / `TextStyle.background`, `DecorationImage.onError`, `FlutterLogoDecoration`. - **Local or recursive providers**: `FileImage` (local path), `MemoryImage` (base64 bloat), `ResizeImage` (wraps another provider), custom `AssetBundle` instances on `AssetImage`. +- **8-bit sRGB color**: `Color` encodes as `#RRGGBB` / `#AARRGGBB`. Integer sRGB + colors round-trip exactly, but sub-8-bit float-channel precision (from + `Color.withValues` / `Color.lerp`) is quantized and a non-sRGB `colorSpace` + (display P3, extended sRGB) is flattened to sRGB. - **Lossy narrowing**: `OvalBorder` extends `CircleBorder`, so it round-trips as `CircleBorder` — the runtime subtype is lost. The painted output is - equivalent to `CircleBorder(eccentricity: 1.0)`. + equivalent to `CircleBorder(eccentricity: 1.0)`. Likewise `StarBorder.polygon` + round-trips as the equivalent regular `StarBorder` (its null + `innerRadiusRatio` becomes the resolved value), and `StarBorder.rotation` + survives only to floating-point precision (degrees↔radians). Both are + painted-equivalent but not `==`-equal. +- **Font-family `packages/` ambiguity**: a literal `fontFamily: + 'packages//'` supplied without a `package:` argument is read back as + package-qualified (the common case), so it does not round-trip under + `TextStyle` equality although the resolved family string is preserved. - **Separate plans**: `InputBorder` family (Material — `OutlineInputBorder`, `UnderlineInputBorder`). @@ -118,7 +144,9 @@ pattern, gradient discriminator, shape enum, and so on). ## Roadmap -The painting-layer surface is feature-complete for the types Flutter exposes -JSON-safely. Future additions would require either upstream changes to -`dart:ui` (to expose `ColorFilter`/`ImageFilter` state) or a parallel -descriptor-type design that we'd own outside the raw Flutter types. +The painting- and rendering-layer surface is feature-complete for the types +Flutter exposes JSON-safely. The widget codecs (`Container`, `Text`, `Key`) are +a deliberately small surface that will grow over time. Further additions to the +painting layer would require either upstream changes to `dart:ui` (to expose +`ColorFilter` / `ImageFilter` state) or a parallel descriptor-type design that +we'd own outside the raw Flutter types. diff --git a/packages/flutter_codec/lib/src/decoration_image.dart b/packages/flutter_codec/lib/src/decoration_image.dart index c5090477..5fa25a38 100644 --- a/packages/flutter_codec/lib/src/decoration_image.dart +++ b/packages/flutter_codec/lib/src/decoration_image.dart @@ -37,8 +37,12 @@ import 'primitives/rect.dart' show rectCodec; /// to `ImageFilter` (private subtypes, private state). /// * `onError` — callback type, not serializable. /// -/// Both are excluded from [DecorationImage]'s `==`, so round-trips remain -/// stable. +/// Both are dropped because the schema has no field for them. [onError] is +/// excluded from [DecorationImage]'s `==`, so its loss is invisible. But +/// `colorFilter` *is* compared by `==` and `hashCode`, so a [DecorationImage] +/// with a non-null `colorFilter` cannot round-trip: encoding one throws +/// (rather than silently producing an unequal value), mirroring the +/// `assetImageCodec` `bundle` guard. final decorationImageCodec = Ack.object({ 'image': imageProviderCodec, @@ -66,17 +70,27 @@ final decorationImageCodec = invertColors: readValue(data, 'invertColors'), isAntiAlias: readValue(data, 'isAntiAlias'), ), - encode: (value) => { - 'image': value.image, - 'fit': value.fit, - 'alignment': value.alignment, - 'centerSlice': value.centerSlice, - 'repeat': value.repeat, - 'matchTextDirection': value.matchTextDirection, - 'scale': value.scale, - 'opacity': value.opacity, - 'filterQuality': value.filterQuality, - 'invertColors': value.invertColors, - 'isAntiAlias': value.isAntiAlias, + encode: (value) { + if (value.colorFilter != null) { + throw UnsupportedError( + 'DecorationImage.colorFilter cannot be encoded: ColorFilter keeps ' + 'its state in library-private fields with no public getters, so it ' + 'has no portable JSON shape, and it is part of DecorationImage ' + 'equality. Remove the colorFilter before encoding.', + ); + } + return { + 'image': value.image, + 'fit': value.fit, + 'alignment': value.alignment, + 'centerSlice': value.centerSlice, + 'repeat': value.repeat, + 'matchTextDirection': value.matchTextDirection, + 'scale': value.scale, + 'opacity': value.opacity, + 'filterQuality': value.filterQuality, + 'invertColors': value.invertColors, + 'isAntiAlias': value.isAntiAlias, + }; }, ); diff --git a/packages/flutter_codec/lib/src/decorations.dart b/packages/flutter_codec/lib/src/decorations.dart index c718c67b..70c4a7fa 100644 --- a/packages/flutter_codec/lib/src/decorations.dart +++ b/packages/flutter_codec/lib/src/decorations.dart @@ -35,18 +35,29 @@ import 'shape_borders.dart' show shapeBorderCodec; /// [decorationCodec] when this codec is used as one of its branches. final boxDecorationCodec = Ack.object({ - 'color': colorCodec.nullable().optional(), - 'image': decorationImageCodec.nullable().optional(), - 'border': boxBorderCodec.nullable().optional(), - 'borderRadius': borderRadiusGeometryCodec.nullable().optional(), - 'boxShadow': Ack.list(boxShadowCodec).nullable().optional(), - 'gradient': gradientCodec.nullable().optional(), - 'backgroundBlendMode': blendModeCodec.nullable().optional(), - 'shape': boxShapeCodec.withDefault(BoxShape.rectangle), - }).codec( - decode: _decodeBoxDecoration, - encode: _encodeBoxDecoration, - ); + 'color': colorCodec.nullable().optional(), + 'image': decorationImageCodec.nullable().optional(), + 'border': boxBorderCodec.nullable().optional(), + 'borderRadius': borderRadiusGeometryCodec.nullable().optional(), + 'boxShadow': Ack.list(boxShadowCodec).nullable().optional(), + 'gradient': gradientCodec.nullable().optional(), + 'backgroundBlendMode': blendModeCodec.nullable().optional(), + 'shape': boxShapeCodec.withDefault(BoxShape.rectangle), + }) + // Enforced here (not just by the constructor's debug assert) so the + // check holds in release builds. + .refine( + (data) => + data['backgroundBlendMode'] == null || + data['color'] != null || + data['gradient'] != null, + message: + 'BoxDecoration.backgroundBlendMode requires a color or gradient.', + ) + .codec( + decode: _decodeBoxDecoration, + encode: _encodeBoxDecoration, + ); BoxDecoration _decodeBoxDecoration(JsonMap data) { return BoxDecoration( @@ -88,18 +99,24 @@ JsonMap _encodeBoxDecoration(BoxDecoration value) { /// used as one of its branches. /// /// [ShapeDecoration] asserts that `color` and `gradient` cannot both be -/// non-null; this codec leaves that check to the constructor. +/// non-null; this codec enforces the same rule with a refinement so it holds +/// in release builds (where the constructor assert is stripped). final shapeDecorationCodec = Ack.object({ - 'color': colorCodec.nullable().optional(), - 'image': decorationImageCodec.nullable().optional(), - 'gradient': gradientCodec.nullable().optional(), - 'shadows': Ack.list(boxShadowCodec).nullable().optional(), - 'shape': shapeBorderCodec, - }).codec( - decode: _decodeShapeDecoration, - encode: _encodeShapeDecoration, - ); + 'color': colorCodec.nullable().optional(), + 'image': decorationImageCodec.nullable().optional(), + 'gradient': gradientCodec.nullable().optional(), + 'shadows': Ack.list(boxShadowCodec).nullable().optional(), + 'shape': shapeBorderCodec, + }) + .refine( + (data) => data['color'] == null || data['gradient'] == null, + message: 'ShapeDecoration cannot set both color and gradient.', + ) + .codec( + decode: _decodeShapeDecoration, + encode: _encodeShapeDecoration, + ); ShapeDecoration _decodeShapeDecoration(JsonMap data) { return ShapeDecoration( diff --git a/packages/flutter_codec/lib/src/font_family_packing.dart b/packages/flutter_codec/lib/src/font_family_packing.dart index 3b060311..58ecf6ab 100644 --- a/packages/flutter_codec/lib/src/font_family_packing.dart +++ b/packages/flutter_codec/lib/src/font_family_packing.dart @@ -12,10 +12,24 @@ /// `(fontFamily, fontFamilyFallback, package)` triple when all referenced /// families share the same prefix. Falls back to the stored (prefixed) form /// when the prefix is missing or inconsistent. +/// +/// A package is only recovered when the primary [family] is non-null. With a +/// null family the constructor would re-fold `package` into the literal string +/// `'packages//null'` (it interpolates the null family), corrupting the +/// round-trip; keeping the fallback verbatim with `package: null` reproduces +/// the original exactly because decode then performs no folding. +/// +/// Note: a literal `fontFamily: 'packages//'` supplied without a +/// `package:` argument is indistinguishable from the folded +/// `(fontFamily: '', package: '')` form (the original `_package` is +/// private and is compared by `TextStyle` equality). It is intentionally +/// interpreted as package-qualified — the common case — so such a literal +/// does not round-trip under `TextStyle` equality, though the resolved font +/// family string is preserved. ({String? family, List? fallback, String? packageName}) unpackFontFamily(String? family, List? fallback) { final pkg = _sharedPackagePrefix([if (family != null) family, ...?fallback]); - if (pkg == null) { + if (pkg == null || family == null) { return (family: family, fallback: fallback, packageName: null); } @@ -23,7 +37,7 @@ unpackFontFamily(String? family, List? fallback) { String strip(String f) => f.startsWith(prefix) ? f.substring(prefix.length) : f; return ( - family: family == null ? null : strip(family), + family: strip(family), fallback: fallback?.map(strip).toList(), packageName: pkg, ); diff --git a/packages/flutter_codec/lib/src/gradients.dart b/packages/flutter_codec/lib/src/gradients.dart index 53c222f2..ef1827c0 100644 --- a/packages/flutter_codec/lib/src/gradients.dart +++ b/packages/flutter_codec/lib/src/gradients.dart @@ -7,6 +7,7 @@ import 'package:flutter/painting.dart' AlignmentGeometry, Color, Gradient, + GradientTransform, LinearGradient, RadialGradient, SweepGradient, @@ -17,6 +18,18 @@ import 'json_readers.dart'; import 'primitives/alignment.dart' show alignmentGeometryCodec; import 'primitives/color.dart' show colorCodec; +// Gradients accept an arbitrary [GradientTransform] — an open abstract type +// with no public, portable representation. Encoding one would silently drop it +// (`Gradient.==` compares `transform`), so it is rejected loudly instead. +void _requireEncodableTransform(GradientTransform? transform) { + if (transform != null) { + throw UnsupportedError( + 'Gradient.transform cannot be encoded: GradientTransform has no portable ' + 'JSON shape. Apply gradient transforms outside the codec layer.', + ); + } +} + /// Codec for [LinearGradient]. Tagged with `"type": "linear"`. /// /// `colors` is required and must contain at least two entries. `stops`, when @@ -39,13 +52,16 @@ final linearGradientCodec = stops: readNullableDoubleList(data, 'stops'), tileMode: readValue(data, 'tileMode'), ), - encode: (value) => { - 'type': 'linear', - 'begin': value.begin, - 'end': value.end, - 'colors': value.colors, - 'stops': value.stops, - 'tileMode': value.tileMode, + encode: (value) { + _requireEncodableTransform(value.transform); + return { + 'type': 'linear', + 'begin': value.begin, + 'end': value.end, + 'colors': value.colors, + 'stops': value.stops, + 'tileMode': value.tileMode, + }; }, ); @@ -74,15 +90,18 @@ final radialGradientCodec = focal: readNullableValue(data, 'focal'), focalRadius: readDouble(data, 'focalRadius'), ), - encode: (value) => { - 'type': 'radial', - 'center': value.center, - 'radius': value.radius, - 'colors': value.colors, - 'stops': value.stops, - 'tileMode': value.tileMode, - 'focal': value.focal, - 'focalRadius': value.focalRadius, + encode: (value) { + _requireEncodableTransform(value.transform); + return { + 'type': 'radial', + 'center': value.center, + 'radius': value.radius, + 'colors': value.colors, + 'stops': value.stops, + 'tileMode': value.tileMode, + 'focal': value.focal, + 'focalRadius': value.focalRadius, + }; }, ); @@ -109,14 +128,17 @@ final sweepGradientCodec = stops: readNullableDoubleList(data, 'stops'), tileMode: readValue(data, 'tileMode'), ), - encode: (value) => { - 'type': 'sweep', - 'center': value.center, - 'startAngle': value.startAngle, - 'endAngle': value.endAngle, - 'colors': value.colors, - 'stops': value.stops, - 'tileMode': value.tileMode, + encode: (value) { + _requireEncodableTransform(value.transform); + return { + 'type': 'sweep', + 'center': value.center, + 'startAngle': value.startAngle, + 'endAngle': value.endAngle, + 'colors': value.colors, + 'stops': value.stops, + 'tileMode': value.tileMode, + }; }, ); diff --git a/packages/flutter_codec/lib/src/json_readers.dart b/packages/flutter_codec/lib/src/json_readers.dart index 30ae3d8d..839dbb26 100644 --- a/packages/flutter_codec/lib/src/json_readers.dart +++ b/packages/flutter_codec/lib/src/json_readers.dart @@ -18,6 +18,10 @@ double? readNullableDouble(JsonMap map, String key) => (map[key] as num?)?.toDouble(); /// Reads the required list field [key] from a decoded [map] as `List`. +/// +/// Not for numeric `T`: `cast()` does not coerce JSON ints and would +/// throw on iteration. Use [readDoubleList] / [readNullableDoubleList] for +/// numeric lists. List readList(JsonMap map, String key) => (map[key]! as List).cast().toList(); @@ -25,6 +29,13 @@ List readList(JsonMap map, String key) => List? readNullableList(JsonMap map, String key) => (map[key] as List?)?.cast().toList(); +/// Reads the required numeric list field [key] as `List`. +/// +/// Coerces JSON ints to doubles (unlike `readList`, whose `cast` would +/// throw on a JSON int). +List readDoubleList(JsonMap map, String key) => + (map[key]! as List).map((value) => (value as num).toDouble()).toList(); + /// Reads the optional numeric list field [key] as `List`. List? readNullableDoubleList(JsonMap map, String key) { final raw = map[key]; diff --git a/packages/flutter_codec/lib/src/primitives/color.dart b/packages/flutter_codec/lib/src/primitives/color.dart index 9258bee1..9da52281 100644 --- a/packages/flutter_codec/lib/src/primitives/color.dart +++ b/packages/flutter_codec/lib/src/primitives/color.dart @@ -4,6 +4,13 @@ import 'package:flutter/painting.dart' show Color; /// Codec for [Color]. Accepts `#RRGGBB`, `#AARRGGBB`, `rgb(r,g,b)`, and /// `rgba(r,g,b,a)` strings; encodes to canonical hex (`#RRGGBB`, or `#AARRGGBB` /// when translucent). +/// +/// The wire format is 8-bit sRGB (via [Color.toARGB32]). Integer-constructed +/// sRGB colors ([Color.new], `Colors.*`, [Color.fromARGB]) round-trip exactly. +/// Two losses are intentional and not preserved: sub-8-bit float-channel +/// precision (e.g. from [Color.withValues] or [Color.lerp]) is quantized, and +/// a non-sRGB [Color.colorSpace] (display P3, extended sRGB) is flattened to +/// sRGB. See `test/primitives/color_test.dart` for the pinned behavior. final colorCodec = Ack.codec( input: Ack.anyOf([ Ack.string().matches(r'^#[0-9A-Fa-f]{6}$'), diff --git a/packages/flutter_codec/lib/src/primitives/font_weight.dart b/packages/flutter_codec/lib/src/primitives/font_weight.dart index 96ebfcac..bcc03e44 100644 --- a/packages/flutter_codec/lib/src/primitives/font_weight.dart +++ b/packages/flutter_codec/lib/src/primitives/font_weight.dart @@ -2,12 +2,11 @@ import 'dart:ui' show FontWeight; import 'package:ack/ack.dart'; -// String aliases accepted for FontWeight. +// Named aliases accepted for [FontWeight]. // -// The first nine entries (w100..w900) are deliberately parallel to -// FontWeight.values so encoding can map between the two by index. The -// trailing `normal` and `bold` are accept-only aliases for w400/w700 and are -// never emitted on encode. +// w100..w900 occupy indices 0..8, so the canonical weight `100 * (index + 1)` +// maps to and from the enum arithmetically. The trailing `normal` and `bold` +// are accept-only aliases for w400/w700 and are never emitted on encode. enum _FontWeight { w100, w200, @@ -24,25 +23,34 @@ enum _FontWeight { /// Codec for [FontWeight]. /// -/// Accepts `"w100"` through `"w900"` plus the conventional aliases `"normal"` -/// and `"bold"`. Encoding canonicalizes every value to the numeric `wNNN` -/// form, since [FontWeight.normal] is the same instance as [FontWeight.w400] -/// (and likewise for [FontWeight.bold] / [FontWeight.w700]). -final fontWeightCodec = Ack.enumCodec(_FontWeight.values).codec( - decode: (value) => switch (value) { +/// Accepts the named aliases `"w100"` through `"w900"` plus `"normal"` and +/// `"bold"`, and any integer weight in `[1, 1000]` — Flutter's public +/// `const FontWeight(int)` supports arbitrary variable-font weights such as +/// `FontWeight(550)`. Encoding canonicalizes the nine standard weights to +/// their `"wNNN"` alias and emits any other weight as its integer +/// [FontWeight.value]. +final fontWeightCodec = Ack.codec( + input: Ack.anyOf([ + Ack.enumCodec(_FontWeight.values), + Ack.integer().min(1).max(1000), + ]), + decode: _decodeFontWeight, + encode: _encodeFontWeight, +); + +FontWeight _decodeFontWeight(Object value) { + if (value is int) return FontWeight(value); + + return switch (value as _FontWeight) { _FontWeight.normal => FontWeight.normal, _FontWeight.bold => FontWeight.bold, - _ => FontWeight.values[value.index], - }, - encode: (value) { - final index = FontWeight.values.indexOf(value); - if (index < 0) { - throw ArgumentError.value( - value, - 'value', - 'Expected a FontWeight from w100 through w900.', - ); - } - return _FontWeight.values[index]; - }, -); + final weight => FontWeight(100 * (weight.index + 1)), + }; +} + +Object _encodeFontWeight(FontWeight value) { + final weight = value.value; + final isCanonical = weight >= 100 && weight <= 900 && weight % 100 == 0; + + return isCanonical ? _FontWeight.values[weight ~/ 100 - 1] : weight; +} diff --git a/packages/flutter_codec/lib/src/shape_borders.dart b/packages/flutter_codec/lib/src/shape_borders.dart index 408f03af..ed46d5c0 100644 --- a/packages/flutter_codec/lib/src/shape_borders.dart +++ b/packages/flutter_codec/lib/src/shape_borders.dart @@ -165,6 +165,11 @@ final roundedSuperellipseBorderCodec = _rectangleBorderSchema /// `valleyRounding` (always `0` for polygons), so the painted output is /// identical even though the runtime "this came from `.polygon`" /// information is lost. +/// +/// `rotation` is stored internally as radians and compared exactly by +/// `StarBorder` equality, while this codec round-trips it as degrees. The +/// degrees↔radians conversion is not bit-stable, so some rotations are +/// painted-equivalent but not `==`-equal after a round-trip. final starBorderCodec = Ack.object({ 'side': borderSideCodec.withDefault(BorderSide.none), diff --git a/packages/flutter_codec/lib/src/widgets/container.dart b/packages/flutter_codec/lib/src/widgets/container.dart index 907f7048..cabc5506 100644 --- a/packages/flutter_codec/lib/src/widgets/container.dart +++ b/packages/flutter_codec/lib/src/widgets/container.dart @@ -20,26 +20,39 @@ import 'widget.dart' show widgetCodec; /// `width` and `height` are accepted on decode because they are constructor /// parameters, but Flutter stores them by tightening [Container.constraints]. /// Encoding therefore canonicalizes both shorthands to `constraints`. -final CodecSchema containerWidgetCodec = Ack.object({ - 'key': keyCodec.nullable().optional(), - 'alignment': alignmentGeometryCodec.nullable().optional(), - 'padding': edgeInsetsGeometryCodec.nullable().optional(), - 'color': colorCodec.nullable().optional(), - 'isAntiAlias': Ack.boolean().withDefault(true), - 'decoration': decorationCodec.nullable().optional(), - 'foregroundDecoration': decorationCodec.nullable().optional(), - 'width': Ack.number().min(0).nullable().optional(), - 'height': Ack.number().min(0).nullable().optional(), - 'constraints': boxConstraintsCodec.nullable().optional(), - 'margin': edgeInsetsGeometryCodec.nullable().optional(), - 'transform': matrix4Codec.nullable().optional(), - 'transformAlignment': alignmentGeometryCodec.nullable().optional(), - 'clipBehavior': clipCodec.withDefault(Clip.none), - 'child': Ack.lazy( - 'widgetCodec', - () => widgetCodec, - ).nullable().optional(), -}).codec(decode: _decodeContainer, encode: _encodeContainer); +final CodecSchema containerWidgetCodec = + Ack.object({ + 'key': keyCodec.nullable().optional(), + 'alignment': alignmentGeometryCodec.nullable().optional(), + 'padding': edgeInsetsGeometryCodec.nullable().optional(), + 'color': colorCodec.nullable().optional(), + 'isAntiAlias': Ack.boolean().withDefault(true), + 'decoration': decorationCodec.nullable().optional(), + 'foregroundDecoration': decorationCodec.nullable().optional(), + 'width': Ack.number().min(0).nullable().optional(), + 'height': Ack.number().min(0).nullable().optional(), + 'constraints': boxConstraintsCodec.nullable().optional(), + 'margin': edgeInsetsGeometryCodec.nullable().optional(), + 'transform': matrix4Codec.nullable().optional(), + 'transformAlignment': alignmentGeometryCodec.nullable().optional(), + 'clipBehavior': clipCodec.withDefault(Clip.none), + 'child': Ack.lazy( + 'widgetCodec', + () => widgetCodec, + ).nullable().optional(), + }) + // Enforce the constructor's cross-field invariants here so validation holds + // in release builds too (Flutter's asserts are stripped outside debug). + .refine( + (data) => data['color'] == null || data['decoration'] == null, + message: 'Container cannot set both color and decoration.', + ) + .refine( + (data) => + data['decoration'] != null || data['clipBehavior'] == Clip.none, + message: 'Container clipBehavior requires a decoration.', + ) + .codec(decode: _decodeContainer, encode: _encodeContainer); Container _decodeContainer(JsonMap data) { return Container( diff --git a/packages/flutter_codec/pubspec.yaml b/packages/flutter_codec/pubspec.yaml index da3fc436..f42d722f 100644 --- a/packages/flutter_codec/pubspec.yaml +++ b/packages/flutter_codec/pubspec.yaml @@ -7,7 +7,9 @@ resolution: workspace environment: sdk: '>=3.8.0 <4.0.0' - flutter: '>=3.27.0' + # Floor is 3.32.0: RoundedSuperellipseBorder and Text.semanticsIdentifier + # first shipped stable in 3.32.0 (WebHtmlElementStrategy in 3.29.0). + flutter: '>=3.32.0' dependencies: ack: ^1.0.0-beta.12-wip diff --git a/packages/flutter_codec/test/decoration_image/decoration_image_test.dart b/packages/flutter_codec/test/decoration_image/decoration_image_test.dart index 52e0fc0a..bc68d621 100644 --- a/packages/flutter_codec/test/decoration_image/decoration_image_test.dart +++ b/packages/flutter_codec/test/decoration_image/decoration_image_test.dart @@ -140,4 +140,16 @@ void main() { expect(schema, contains('"maximum":1')); }); }); + + group('decorationImageCodec colorFilter', () { + test('rejects a DecorationImage with a non-null colorFilter on encode', () { + // colorFilter is part of DecorationImage equality but has no portable + // JSON shape, so encoding must fail loudly rather than drop it silently. + final image = DecorationImage( + image: const NetworkImage(_networkUrl), + colorFilter: const ColorFilter.mode(Color(0xFFFF0000), BlendMode.srcIn), + ); + expect(decorationImageCodec.safeEncode(image).isFail, isTrue); + }); + }); } diff --git a/packages/flutter_codec/test/decorations/decorations_test.dart b/packages/flutter_codec/test/decorations/decorations_test.dart index cd63731e..515bc8cb 100644 --- a/packages/flutter_codec/test/decorations/decorations_test.dart +++ b/packages/flutter_codec/test/decorations/decorations_test.dart @@ -176,6 +176,10 @@ void main() { 'image': {'type': 'spiral', 'url': 'https://example.com/x.png'}, }, }, + // backgroundBlendMode requires a color or gradient (release-safe refine). + 'backgroundBlendMode without color or gradient': { + 'backgroundBlendMode': 'multiply', + }, }; invalidCases.forEach((name, input) { @@ -275,6 +279,20 @@ void main() { expect(shapeDecorationCodec.parse(encoded), original); expectJsonSafe(encoded); }); + + test('round-trips a ShapeDecoration carrying a DecorationImage', () { + final original = ShapeDecoration( + shape: const CircleBorder(), + image: const DecorationImage( + image: NetworkImage('https://example.com/image.png'), + fit: BoxFit.cover, + ), + ); + + final encoded = shapeDecorationCodec.encode(original); + expect(shapeDecorationCodec.parse(encoded), original); + expectJsonSafe(encoded); + }); }); group('shapeDecorationCodec rejects invalid input', () { @@ -291,6 +309,17 @@ void main() { ); }); + test('rejects both color and gradient (release-safe refine)', () { + expect( + shapeDecorationCodec.safeParse({ + 'shape': {'type': 'circle'}, + 'color': '#FF0000', + 'gradient': {'type': 'linear', 'colors': _redBlueHex}, + }).isFail, + isTrue, + ); + }); + test('rejects unknown keys', () { expect( shapeDecorationCodec.safeParse({ diff --git a/packages/flutter_codec/test/gradients/gradients_test.dart b/packages/flutter_codec/test/gradients/gradients_test.dart index 5192f94d..4794dc64 100644 --- a/packages/flutter_codec/test/gradients/gradients_test.dart +++ b/packages/flutter_codec/test/gradients/gradients_test.dart @@ -271,4 +271,28 @@ void main() { expect(schema, contains('"minimum":0')); }); }); + + group('gradient transform is rejected on encode', () { + final transform = GradientRotation(math.pi / 4); + + test('linearGradientCodec fails on a transformed gradient', () { + final gradient = LinearGradient(colors: _redBlue, transform: transform); + expect(linearGradientCodec.safeEncode(gradient).isFail, isTrue); + }); + + test('radialGradientCodec fails on a transformed gradient', () { + final gradient = RadialGradient(colors: _redBlue, transform: transform); + expect(radialGradientCodec.safeEncode(gradient).isFail, isTrue); + }); + + test('sweepGradientCodec fails on a transformed gradient', () { + final gradient = SweepGradient(colors: _redBlue, transform: transform); + expect(sweepGradientCodec.safeEncode(gradient).isFail, isTrue); + }); + + test('gradientCodec fails on a transformed gradient', () { + final gradient = LinearGradient(colors: _redBlue, transform: transform); + expect(gradientCodec.safeEncode(gradient).isFail, isTrue); + }); + }); } diff --git a/packages/flutter_codec/test/json_readers_test.dart b/packages/flutter_codec/test/json_readers_test.dart index ff6ea711..ddb72dcf 100644 --- a/packages/flutter_codec/test/json_readers_test.dart +++ b/packages/flutter_codec/test/json_readers_test.dart @@ -93,4 +93,14 @@ void main() { expect(readNullableDoubleList(map, 'values'), [1.0, 2.5]); }); }); + + group('readDoubleList', () { + test('coerces JSON ints to doubles', () { + final map = { + 'values': [1, 2.5, 3], + }; + + expect(readDoubleList(map, 'values'), [1.0, 2.5, 3.0]); + }); + }); } diff --git a/packages/flutter_codec/test/primitives/color_test.dart b/packages/flutter_codec/test/primitives/color_test.dart index 16bc306e..fc399c20 100644 --- a/packages/flutter_codec/test/primitives/color_test.dart +++ b/packages/flutter_codec/test/primitives/color_test.dart @@ -48,4 +48,35 @@ void main() { }); } }); + + // Characterization tests: the wire format is 8-bit sRGB hex, so float-channel + // precision and non-sRGB color spaces are intentionally not preserved. These + // pin the documented loss so it stays deliberate. + group('colorCodec is 8-bit sRGB (documented lossy)', () { + test('an integer-constructed sRGB color round-trips exactly', () { + const color = Color(0xFF2196F3); + expect(colorCodec.parse(colorCodec.encode(color)), color); + }); + + test('a float-channel color is quantized to 8 bits, not preserved', () { + final color = const Color(0xFF000000).withValues(alpha: 0.3); + final roundTripped = colorCodec.parse(colorCodec.encode(color))!; + // The float alpha 0.3 cannot survive an 8-bit round-trip exactly... + expect(roundTripped, isNot(color)); + // ...but the quantized value stays within one 8-bit step of 0.3. + expect(roundTripped.a, closeTo(0.3, 1 / 255)); + }); + + test('a wide-gamut color round-trips as sRGB', () { + const wideGamut = Color.from( + alpha: 1, + red: 1, + green: 0, + blue: 0, + colorSpace: ColorSpace.displayP3, + ); + final roundTripped = colorCodec.parse(colorCodec.encode(wideGamut))!; + expect(roundTripped.colorSpace, ColorSpace.sRGB); + }); + }); } diff --git a/packages/flutter_codec/test/primitives/edge_insets_test.dart b/packages/flutter_codec/test/primitives/edge_insets_test.dart index 1a9450cb..83ff5063 100644 --- a/packages/flutter_codec/test/primitives/edge_insets_test.dart +++ b/packages/flutter_codec/test/primitives/edge_insets_test.dart @@ -160,6 +160,16 @@ void main() { ); }); + test('rejects encoding a mixed geometry', () { + // Combining EdgeInsets with EdgeInsetsDirectional yields a private + // _MixedEdgeInsets that matches neither branch, so encode fails loudly + // rather than coercing it. + final mixed = const EdgeInsets.only( + left: 8, + ).add(const EdgeInsetsDirectional.only(start: 4)); + expect(edgeInsetsGeometryCodec.safeEncode(mixed).isFail, isTrue); + }); + group('rejects invalid input', () { const invalidCases = { 'mixed keys': {'left': 8, 'start': 8}, diff --git a/packages/flutter_codec/test/primitives/font_weight_test.dart b/packages/flutter_codec/test/primitives/font_weight_test.dart index a5c653a7..cc359649 100644 --- a/packages/flutter_codec/test/primitives/font_weight_test.dart +++ b/packages/flutter_codec/test/primitives/font_weight_test.dart @@ -28,6 +28,16 @@ void main() { expect(fontWeightCodec.parse('normal'), FontWeight.normal); expect(fontWeightCodec.parse('bold'), FontWeight.bold); }); + + test('decodes an integer variable-font weight', () { + expect(fontWeightCodec.parse(550), const FontWeight(550)); + expect(fontWeightCodec.parse(1), const FontWeight(1)); + expect(fontWeightCodec.parse(1000), const FontWeight(1000)); + }); + + test('decodes a canonical integer weight to the standard instance', () { + expect(fontWeightCodec.parse(400), FontWeight.w400); + }); }); group('fontWeightCodec encode', () { @@ -55,10 +65,23 @@ void main() { expect(fontWeightCodec.encode(FontWeight.normal), 'w400'); expect(fontWeightCodec.encode(FontWeight.bold), 'w700'); }); + + test('encodes a non-canonical variable-font weight as an integer', () { + final encoded = fontWeightCodec.encode(const FontWeight(550)); + expect(encoded, 550); + expectJsonSafe(encoded); + }); + + test('round-trips a variable-font weight', () { + const weight = FontWeight(550); + expect(fontWeightCodec.parse(fontWeightCodec.encode(weight)), weight); + }); }); group('fontWeightCodec rejects invalid input', () { - for (final input in ['heavy', 400, null]) { + // Out-of-range integers (the constructor asserts [1, 1000]) and + // non-weight values are rejected; in-range integers are now accepted. + for (final input in ['heavy', 0, 1001, null]) { test('rejects $input', () { expect(fontWeightCodec.safeParse(input).isFail, isTrue); }); diff --git a/packages/flutter_codec/test/primitives/matrix4_test.dart b/packages/flutter_codec/test/primitives/matrix4_test.dart index 71095632..a99b359d 100644 --- a/packages/flutter_codec/test/primitives/matrix4_test.dart +++ b/packages/flutter_codec/test/primitives/matrix4_test.dart @@ -39,5 +39,13 @@ void main() { expect(matrix4Codec.safeParse(List.filled(15, 0)).isFail, isTrue); expect(matrix4Codec.safeParse(List.filled(17, 0)).isFail, isTrue); }); + + test('rejects non-finite entries (JSON has no NaN/Infinity literal)', () { + final withNaN = List.filled(16, 0.0)..[0] = double.nan; + final withInfinity = List.filled(16, 0.0)..[5] = double.infinity; + + expect(matrix4Codec.safeParse(withNaN).isFail, isTrue); + expect(matrix4Codec.safeParse(withInfinity).isFail, isTrue); + }); }); } diff --git a/packages/flutter_codec/test/shape_borders/shape_borders_test.dart b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart index 6c9646e8..04fb109f 100644 --- a/packages/flutter_codec/test/shape_borders/shape_borders_test.dart +++ b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart @@ -169,6 +169,31 @@ void main() { expect(encoded['innerRadiusRatio'], closeTo(0.866, 0.001)); }); + test('StarBorder.polygon narrows to a regular StarBorder (lossy ==)', () { + // .polygon stores a null innerRadiusRatio; the codec re-decodes through + // the regular constructor with the resolved value, so == does not hold, + // but the result is painted-equivalent and itself round-trips stably. + final polygon = StarBorder.polygon(sides: 6); + final roundTripped = starBorderCodec.parse( + starBorderCodec.encode(polygon), + )!; + expect(roundTripped, isNot(polygon)); + expect( + starBorderCodec.parse(starBorderCodec.encode(roundTripped)), + roundTripped, + ); + }); + + test('StarBorder.rotation is preserved to float precision (lossy ==)', () { + // rotation is stored internally as radians; degrees->radians->degrees is + // not bit-stable, so == may not hold, but the painted rotation survives. + const original = StarBorder(rotation: 12); + final roundTripped = starBorderCodec.parse( + starBorderCodec.encode(original), + )!; + expect(roundTripped.rotation, closeTo(12, 1e-9)); + }); + test('rejects fewer than two points', () { expect(starBorderCodec.safeParse({'points': 1}).isFail, isTrue); }); @@ -304,6 +329,17 @@ void main() { expect(shapeBorderCodec.safeParse({}).isFail, isTrue); }); + test('narrows OvalBorder to the circle branch (documented narrowing)', () { + // OvalBorder extends CircleBorder, so the union routes it to "circle" + // and it round-trips as the painted-equivalent CircleBorder(ecc: 1.0). + final encoded = shapeBorderCodec.encode(const OvalBorder())!; + expect(encoded, containsPair('type', 'circle')); + expect( + shapeBorderCodec.parse(encoded), + const CircleBorder(eccentricity: 1.0), + ); + }); + test('JSON Schema surfaces all eight discriminator branches', () { final schema = jsonEncode(shapeBorderCodec.toJsonSchema()); for (final value in const [ diff --git a/packages/flutter_codec/test/strut_style/strut_style_test.dart b/packages/flutter_codec/test/strut_style/strut_style_test.dart index ec95bafd..2e5cf261 100644 --- a/packages/flutter_codec/test/strut_style/strut_style_test.dart +++ b/packages/flutter_codec/test/strut_style/strut_style_test.dart @@ -82,6 +82,19 @@ void main() { expect(encoded['fontFamily'], 'Roboto'); expect(encoded['package'], 'my_pkg'); }); + + test('round-trips a package-prefixed fallback with a null fontFamily', () { + // A package must not be inferred from the fallback alone: re-folding a + // null fontFamily with a package yields the literal 'packages//null'. + const original = StrutStyle( + fontFamilyFallback: ['packages/foo/Bar', 'packages/foo/Baz'], + ); + final roundTripped = strutStyleCodec.parse( + strutStyleCodec.encode(original), + ); + expect(roundTripped, original); + expect(roundTripped!.fontFamily, isNull); + }); }); group('strutStyleCodec rejects invalid input', () { diff --git a/packages/flutter_codec/test/text_style/text_style_test.dart b/packages/flutter_codec/test/text_style/text_style_test.dart index 021400cb..a9f3c552 100644 --- a/packages/flutter_codec/test/text_style/text_style_test.dart +++ b/packages/flutter_codec/test/text_style/text_style_test.dart @@ -168,6 +168,31 @@ void main() { expect(textStyleCodec.parse(encoded), original); expectJsonSafe(encoded); }); + + test('round-trips a package-prefixed fallback with a null fontFamily', () { + // A package must not be inferred from the fallback alone: re-folding a + // null fontFamily with a package yields the literal 'packages//null'. + const original = TextStyle( + fontFamilyFallback: ['packages/foo/Bar', 'packages/foo/Baz'], + ); + final roundTripped = textStyleCodec.parse( + textStyleCodec.encode(original), + ); + expect(roundTripped, original); + expect(roundTripped!.fontFamily, isNull); + }); + + test('preserves a literal packages// fontFamily string', () { + // A literal 'packages/...' family supplied without a package: argument is + // intentionally read back as package-qualified (the common case). The + // resolved font family string is preserved, though TextStyle equality + // does not hold because the private _package differs. + const original = TextStyle(fontFamily: 'packages/foo/Bar'); + final roundTripped = textStyleCodec.parse( + textStyleCodec.encode(original), + ); + expect(roundTripped!.fontFamily, 'packages/foo/Bar'); + }); }); group('textStyleCodec rejects invalid input', () { diff --git a/packages/flutter_codec/test/widgets/container_test.dart b/packages/flutter_codec/test/widgets/container_test.dart index 8481ce3e..75e28efa 100644 --- a/packages/flutter_codec/test/widgets/container_test.dart +++ b/packages/flutter_codec/test/widgets/container_test.dart @@ -175,6 +175,13 @@ void main() { isTrue, ); }); + + test('rejects clipBehavior without a decoration', () { + expect( + containerWidgetCodec.safeParse({'clipBehavior': 'antiAlias'}).isFail, + isTrue, + ); + }); }); group('widgetCodec', () { diff --git a/packages/flutter_codec/test/widgets/key_test.dart b/packages/flutter_codec/test/widgets/key_test.dart index b0f8905c..d35247e9 100644 --- a/packages/flutter_codec/test/widgets/key_test.dart +++ b/packages/flutter_codec/test/widgets/key_test.dart @@ -93,6 +93,21 @@ void main() { 'valueType': 'string', 'value': 1, }, + 'int valueType with a double value': { + 'type': 'value', + 'valueType': 'int', + 'value': 1.5, + }, + 'bool valueType with an int value': { + 'type': 'value', + 'valueType': 'bool', + 'value': 1, + }, + 'double valueType with a non-numeric value': { + 'type': 'value', + 'valueType': 'double', + 'value': 'oops', + }, }; invalidCases.forEach((name, input) { From fe2ef4aaf61a8992e913e077ad5dab5c4108403d Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 10 Jun 2026 10:14:14 -0400 Subject: [PATCH 45/53] test(flutter_codec): add golden JSON fixtures for every codec Add a golden-fixture harness covering all 102 public codecs (56 structured + 46 enums). For each type it records the exact JSON the codec emits in a reviewable per-family fixture under test/golden/fixtures/, then parses that JSON back and asserts the round-trip: - value equality for painting/rendering value types, - stability (encode(parse(json)) == json) for the widget types that have no value equality, and - the documented narrowing for lossy types (e.g. OvalBorder -> circle). Fixtures are kept as plain, dependency-free JSON and are byte-stable across platforms (matrix transforms avoid trig; the only long decimal is 2*pi). StarBorder.polygon is intentionally excluded because its encoded innerRadiusRatio is a libm value. Regenerate with UPDATE_GOLDENS=true. A README documents the conventions: the top-level keys are test-case identifiers (not wire data), encode emits explicit nulls while decode treats absent == null, unsupported fields are omitted entirely, and BoxConstraints deliberately distinguishes an absent min bound (0) from null (infinity). --- packages/flutter_codec/test/golden/README.md | 93 ++ .../test/golden/fixtures/borders.json | 56 + .../test/golden/fixtures/constraints.json | 27 + .../golden/fixtures/decoration_image.json | 43 + .../test/golden/fixtures/decorations.json | 164 ++ .../test/golden/fixtures/enums.json | 272 ++++ .../test/golden/fixtures/gradients.json | 76 + .../test/golden/fixtures/image_providers.json | 36 + .../test/golden/fixtures/primitives.json | 128 ++ .../test/golden/fixtures/shadows.json | 38 + .../test/golden/fixtures/shape_borders.json | 95 ++ .../test/golden/fixtures/text.json | 118 ++ .../test/golden/fixtures/widgets.json | 241 +++ .../test/golden/golden_test.dart | 1426 +++++++++++++++++ 14 files changed, 2813 insertions(+) create mode 100644 packages/flutter_codec/test/golden/README.md create mode 100644 packages/flutter_codec/test/golden/fixtures/borders.json create mode 100644 packages/flutter_codec/test/golden/fixtures/constraints.json create mode 100644 packages/flutter_codec/test/golden/fixtures/decoration_image.json create mode 100644 packages/flutter_codec/test/golden/fixtures/decorations.json create mode 100644 packages/flutter_codec/test/golden/fixtures/enums.json create mode 100644 packages/flutter_codec/test/golden/fixtures/gradients.json create mode 100644 packages/flutter_codec/test/golden/fixtures/image_providers.json create mode 100644 packages/flutter_codec/test/golden/fixtures/primitives.json create mode 100644 packages/flutter_codec/test/golden/fixtures/shadows.json create mode 100644 packages/flutter_codec/test/golden/fixtures/shape_borders.json create mode 100644 packages/flutter_codec/test/golden/fixtures/text.json create mode 100644 packages/flutter_codec/test/golden/fixtures/widgets.json create mode 100644 packages/flutter_codec/test/golden/golden_test.dart diff --git a/packages/flutter_codec/test/golden/README.md b/packages/flutter_codec/test/golden/README.md new file mode 100644 index 00000000..4b95b2f1 --- /dev/null +++ b/packages/flutter_codec/test/golden/README.md @@ -0,0 +1,93 @@ +# Golden fixtures + +These files pin the exact JSON that every public codec in `flutter_codec` +produces, and `golden_test.dart` proves each one parses back. They are the +human-reviewable record of the package's wire format — if an encoder changes +shape, a fixture diff makes it obvious. + +## How to read a fixture file + +Each file under `fixtures/` is one **family** (mirroring `lib/src/`), and is a +JSON object of the form: + +```jsonc +{ + "": , + ... +} +``` + +> [!IMPORTANT] +> The **top-level keys are test-case identifiers, not wire data.** They only +> exist to group many cases in one file. The thing the codec produces — the +> actual layout you care about — is always the **value**. + +For example, in `primitives.json`: + +```jsonc +{ + "color": "#2196F3", // case "color" -> colorCodec emits "#2196F3" + "offset": { "x": 12.0, "y": 4.5 } // case "offset" -> the real Offset wire shape +} +``` + +`color` and `offset` are labels. `"#2196F3"` and `{ "x": 12.0, "y": 4.5 }` are +the real encodings. `enums.json` follows the same rule: the key is the enum type +name, the value is the full ordered list of wire strings that codec accepts and +emits. + +## What the round-trip check asserts + +For every case the test: + +1. **Encodes** a representative typed value and asserts it equals the recorded + JSON (a shape change shows up as a golden diff). +2. **Parses the JSON back** and verifies the round-trip, one of: + - **value equality** (`==`) — the painting/rendering value types; + - **stability** (`encode(parse(json)) == json`) — `Container` / `Text` / + the widget union, which intentionally have no value equality; + - **documented narrowing** — e.g. `OvalBorder` routes through the `circle` + branch and round-trips as `CircleBorder(eccentricity: 1.0)`. + +## Null / optional / missing-key conventions + +- **Encoding always emits the full canonical map with explicit `null`s.** Every + supported-but-unset field is present as `null` (this is why the maps look + verbose). That makes the output self-documenting and gives clean diffs. +- **Decoding treats an absent key and an explicit `null` as identical** for + `nullable().optional()` fields, so compact input (`{}`, partial objects) and + the verbose canonical form decode to the same value. +- **Unsupported fields are omitted entirely, not nulled.** A *missing* key in + the output means "not part of this type's contract" (e.g. `Text.textScaler`), + whereas `"key": null` means "supported field, currently unset." +- **`BoxConstraints` is the deliberate exception where absent ≠ null:** an + *omitted* min bound decodes to `0`, but an explicit `"minWidth": null` decodes + to `infinity` (JSON has no infinity literal, so `null` stands in for it). + +## Intentional losses (covered by the dedicated unit tests, not these goldens) + +- `Color` is 8-bit sRGB hex; float-channel precision and non-sRGB color spaces + are not preserved. +- `Gradient.transform` and `DecorationImage.colorFilter` have no portable JSON + shape and **throw on encode** rather than dropping silently. +- `StarBorder.polygon` is intentionally *not* recorded here: its encoded + `innerRadiusRatio` is `cos(pi / sides)`, a libm value that is not guaranteed + bit-identical across platforms. Its narrowing is tested with a tolerance in + `test/shape_borders/shape_borders_test.dart`. + +## Determinism + +Fixtures must be byte-identical on any machine, so the representative values +avoid transcendental functions (matrix transforms use translate/scale, not +`rotateZ`). The only long decimal in the fixtures is `6.283185307179586`, which +is exactly `2 * math.pi` — constant arithmetic, not a libm call. + +## Regenerating after an intentional change + +```sh +UPDATE_GOLDENS=true flutter test test/golden/golden_test.dart +``` + +This rewrites every `fixtures/*.json` from the current encoders. Review the diff, +then run `flutter test test/golden/golden_test.dart` (without the flag) to +confirm everything still parses back. diff --git a/packages/flutter_codec/test/golden/fixtures/borders.json b/packages/flutter_codec/test/golden/fixtures/borders.json new file mode 100644 index 00000000..cc465808 --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/borders.json @@ -0,0 +1,56 @@ +{ + "strokeAlignNamed": "outside", + "strokeAlignNumeric": 0.5, + "borderSideNone": "none", + "borderSideFull": { + "color": "#FF0000", + "width": 2.0, + "style": "none", + "strokeAlign": "center" + }, + "borderNone": "none", + "borderUniform": { + "color": "#FF0000", + "width": 2.0, + "style": "solid", + "strokeAlign": "inside" + }, + "borderMixed": { + "top": { + "color": "#FF0000", + "width": 2.0, + "style": "solid", + "strokeAlign": "inside" + }, + "right": "none", + "bottom": { + "color": "#0000FF", + "width": 3.0, + "style": "solid", + "strokeAlign": "inside" + }, + "left": "none" + }, + "borderDirectional": { + "top": "none", + "start": { + "color": "#FF0000", + "width": 2.0, + "style": "solid", + "strokeAlign": "inside" + }, + "end": "none", + "bottom": "none" + }, + "boxBorderDirectional": { + "top": "none", + "start": { + "color": "#FF0000", + "width": 1.0, + "style": "solid", + "strokeAlign": "inside" + }, + "end": "none", + "bottom": "none" + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/constraints.json b/packages/flutter_codec/test/golden/fixtures/constraints.json new file mode 100644 index 00000000..30ccd171 --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/constraints.json @@ -0,0 +1,27 @@ +{ + "boxConstraintsDefault": { + "minWidth": 0.0, + "maxWidth": null, + "minHeight": 0.0, + "maxHeight": null + }, + "boxConstraintsFinite": { + "minWidth": 1.0, + "maxWidth": 10.0, + "minHeight": 2.0, + "maxHeight": 20.0 + }, + "boxConstraintsExpand": { + "minWidth": null, + "maxWidth": null, + "minHeight": null, + "maxHeight": null + }, + "constraintsUnionBox": { + "type": "box", + "minWidth": 1.0, + "maxWidth": 10.0, + "minHeight": 2.0, + "maxHeight": 20.0 + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/decoration_image.json b/packages/flutter_codec/test/golden/fixtures/decoration_image.json new file mode 100644 index 00000000..3def99c0 --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/decoration_image.json @@ -0,0 +1,43 @@ +{ + "decorationImageMinimal": { + "image": { + "type": "network", + "url": "https://example.com/image.png", + "scale": 1.0, + "headers": null, + "webHtmlElementStrategy": "never" + }, + "fit": null, + "alignment": "center", + "centerSlice": null, + "repeat": "noRepeat", + "matchTextDirection": false, + "scale": 1.0, + "opacity": 1.0, + "filterQuality": "medium", + "invertColors": false, + "isAntiAlias": false + }, + "decorationImageFull": { + "image": { + "type": "asset", + "assetName": "icons/foo.png", + "package": "my_pkg" + }, + "fit": "cover", + "alignment": "bottomRight", + "centerSlice": { + "left": 1.0, + "top": 2.0, + "right": 3.0, + "bottom": 4.0 + }, + "repeat": "repeatX", + "matchTextDirection": true, + "scale": 1.5, + "opacity": 0.75, + "filterQuality": "low", + "invertColors": true, + "isAntiAlias": true + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/decorations.json b/packages/flutter_codec/test/golden/fixtures/decorations.json new file mode 100644 index 00000000..65780246 --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/decorations.json @@ -0,0 +1,164 @@ +{ + "boxDecorationDefault": { + "color": null, + "image": null, + "border": null, + "borderRadius": null, + "boxShadow": null, + "gradient": null, + "backgroundBlendMode": null, + "shape": "rectangle" + }, + "boxDecorationFull": { + "color": "#2196F3", + "image": null, + "border": { + "color": "#FF0000", + "width": 2.0, + "style": "solid", + "strokeAlign": "inside" + }, + "borderRadius": 8.0, + "boxShadow": [ + { + "color": "#55000000", + "offset": { + "x": 1.0, + "y": 2.0 + }, + "blurRadius": 3.0, + "spreadRadius": 4.0, + "blurStyle": "outer" + } + ], + "gradient": { + "type": "linear", + "begin": "topLeft", + "end": "bottomRight", + "colors": [ + "#FF0000", + "#0000FF" + ], + "stops": [ + 0.0, + 1.0 + ], + "tileMode": "mirror" + }, + "backgroundBlendMode": "multiply", + "shape": "rectangle" + }, + "boxDecorationImage": { + "color": null, + "image": { + "image": { + "type": "network", + "url": "https://example.com/foo.png", + "scale": 1.0, + "headers": null, + "webHtmlElementStrategy": "never" + }, + "fit": "cover", + "alignment": "topLeft", + "centerSlice": null, + "repeat": "noRepeat", + "matchTextDirection": false, + "scale": 1.0, + "opacity": 1.0, + "filterQuality": "medium", + "invertColors": false, + "isAntiAlias": false + }, + "border": null, + "borderRadius": null, + "boxShadow": null, + "gradient": null, + "backgroundBlendMode": null, + "shape": "rectangle" + }, + "shapeDecorationCircle": { + "color": null, + "image": null, + "gradient": null, + "shadows": null, + "shape": { + "type": "circle", + "side": "none", + "eccentricity": 0.0 + } + }, + "shapeDecorationFull": { + "color": "#2196F3", + "image": null, + "gradient": null, + "shadows": [ + { + "color": "#55000000", + "offset": { + "x": 1.0, + "y": 2.0 + }, + "blurRadius": 3.0, + "spreadRadius": 0.0, + "blurStyle": "normal" + } + ], + "shape": { + "type": "roundedRectangle", + "side": "none", + "borderRadius": 8.0 + } + }, + "shapeDecorationImage": { + "color": null, + "image": { + "image": { + "type": "network", + "url": "https://example.com/image.png", + "scale": 1.0, + "headers": null, + "webHtmlElementStrategy": "never" + }, + "fit": "cover", + "alignment": "center", + "centerSlice": null, + "repeat": "noRepeat", + "matchTextDirection": false, + "scale": 1.0, + "opacity": 1.0, + "filterQuality": "medium", + "invertColors": false, + "isAntiAlias": false + }, + "gradient": null, + "shadows": null, + "shape": { + "type": "circle", + "side": "none", + "eccentricity": 0.0 + } + }, + "decorationUnionBox": { + "type": "box", + "color": "#2196F3", + "image": null, + "border": null, + "borderRadius": null, + "boxShadow": null, + "gradient": null, + "backgroundBlendMode": null, + "shape": "rectangle" + }, + "decorationUnionShape": { + "type": "shape", + "color": null, + "image": null, + "gradient": null, + "shadows": null, + "shape": { + "type": "circle", + "side": "none", + "eccentricity": 0.0 + } + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/enums.json b/packages/flutter_codec/test/golden/fixtures/enums.json new file mode 100644 index 00000000..f02327e4 --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/enums.json @@ -0,0 +1,272 @@ +{ + "Axis": [ + "horizontal", + "vertical" + ], + "AxisDirection": [ + "up", + "right", + "down", + "left" + ], + "BlendMode": [ + "clear", + "src", + "dst", + "srcOver", + "dstOver", + "srcIn", + "dstIn", + "srcOut", + "dstOut", + "srcATop", + "dstATop", + "xor", + "plus", + "modulate", + "screen", + "overlay", + "darken", + "lighten", + "colorDodge", + "colorBurn", + "hardLight", + "softLight", + "difference", + "exclusion", + "multiply", + "hue", + "saturation", + "color", + "luminosity" + ], + "BlurStyle": [ + "normal", + "solid", + "outer", + "inner" + ], + "BorderStyle": [ + "none", + "solid" + ], + "BoxFit": [ + "fill", + "contain", + "cover", + "fitWidth", + "fitHeight", + "none", + "scaleDown" + ], + "BoxHeightStyle": [ + "tight", + "max", + "includeLineSpacingMiddle", + "includeLineSpacingTop", + "includeLineSpacingBottom", + "strut" + ], + "BoxShape": [ + "rectangle", + "circle" + ], + "BoxWidthStyle": [ + "tight", + "max" + ], + "Brightness": [ + "dark", + "light" + ], + "Clip": [ + "none", + "hardEdge", + "antiAlias", + "antiAliasWithSaveLayer" + ], + "CrossAxisAlignment": [ + "start", + "end", + "center", + "stretch", + "baseline" + ], + "DecorationPosition": [ + "background", + "foreground" + ], + "DragStartBehavior": [ + "down", + "start" + ], + "FilterQuality": [ + "none", + "low", + "medium", + "high" + ], + "FlexFit": [ + "tight", + "loose" + ], + "FontStyle": [ + "normal", + "italic" + ], + "GrowthDirection": [ + "forward", + "reverse" + ], + "HitTestBehavior": [ + "deferToChild", + "opaque", + "translucent" + ], + "ImageRepeat": [ + "repeat", + "repeatX", + "repeatY", + "noRepeat" + ], + "WebHtmlElementStrategy": [ + "never", + "fallback", + "prefer" + ], + "MainAxisAlignment": [ + "start", + "end", + "center", + "spaceBetween", + "spaceAround", + "spaceEvenly" + ], + "MainAxisSize": [ + "min", + "max" + ], + "MaterialTapTargetSize": [ + "padded", + "shrinkWrap" + ], + "PaintingStyle": [ + "fill", + "stroke" + ], + "PathFillType": [ + "nonZero", + "evenOdd" + ], + "PlaceholderAlignment": [ + "baseline", + "aboveBaseline", + "belowBaseline", + "top", + "bottom", + "middle" + ], + "ScrollDirection": [ + "idle", + "forward", + "reverse" + ], + "ScrollViewKeyboardDismissBehavior": [ + "manual", + "onDrag" + ], + "StackFit": [ + "loose", + "expand", + "passthrough" + ], + "StrokeCap": [ + "butt", + "round", + "square" + ], + "StrokeJoin": [ + "miter", + "round", + "bevel" + ], + "TargetPlatform": [ + "android", + "fuchsia", + "iOS", + "linux", + "macOS", + "windows" + ], + "TextAlign": [ + "left", + "right", + "center", + "justify", + "start", + "end" + ], + "TextBaseline": [ + "alphabetic", + "ideographic" + ], + "TextCapitalization": [ + "words", + "sentences", + "characters", + "none" + ], + "TextDecorationStyle": [ + "solid", + "double", + "dotted", + "dashed", + "wavy" + ], + "TextDirection": [ + "rtl", + "ltr" + ], + "TextLeadingDistribution": [ + "proportional", + "even" + ], + "TextOverflow": [ + "clip", + "fade", + "ellipsis", + "visible" + ], + "TextWidthBasis": [ + "parent", + "longestLine" + ], + "ThemeMode": [ + "system", + "light", + "dark" + ], + "TileMode": [ + "clamp", + "repeated", + "mirror", + "decal" + ], + "VerticalDirection": [ + "up", + "down" + ], + "WrapAlignment": [ + "start", + "end", + "center", + "spaceBetween", + "spaceAround", + "spaceEvenly" + ], + "WrapCrossAlignment": [ + "start", + "end", + "center" + ] +} diff --git a/packages/flutter_codec/test/golden/fixtures/gradients.json b/packages/flutter_codec/test/golden/fixtures/gradients.json new file mode 100644 index 00000000..3d7f654d --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/gradients.json @@ -0,0 +1,76 @@ +{ + "linearGradient": { + "type": "linear", + "begin": "centerLeft", + "end": "centerRight", + "colors": [ + "#FF0000", + "#0000FF" + ], + "stops": null, + "tileMode": "clamp" + }, + "linearGradientFull": { + "type": "linear", + "begin": "topLeft", + "end": "bottomRight", + "colors": [ + "#FF0000", + "#0000FF" + ], + "stops": [ + 0.0, + 1.0 + ], + "tileMode": "mirror" + }, + "radialGradient": { + "type": "radial", + "center": "center", + "radius": 0.5, + "colors": [ + "#FF0000", + "#0000FF" + ], + "stops": null, + "tileMode": "clamp", + "focal": null, + "focalRadius": 0.0 + }, + "radialGradientFocal": { + "type": "radial", + "center": "center", + "radius": 0.5, + "colors": [ + "#FF0000", + "#0000FF" + ], + "stops": null, + "tileMode": "clamp", + "focal": "topLeft", + "focalRadius": 0.25 + }, + "sweepGradient": { + "type": "sweep", + "center": "center", + "startAngle": 0.0, + "endAngle": 6.283185307179586, + "colors": [ + "#FF0000", + "#0000FF" + ], + "stops": null, + "tileMode": "clamp" + }, + "gradientUnionLinear": { + "type": "linear", + "begin": "centerLeft", + "end": "centerRight", + "colors": [ + "#FF0000", + "#0000FF" + ], + "stops": null, + "tileMode": "clamp" + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/image_providers.json b/packages/flutter_codec/test/golden/fixtures/image_providers.json new file mode 100644 index 00000000..de6794ca --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/image_providers.json @@ -0,0 +1,36 @@ +{ + "networkImageMinimal": { + "url": "https://example.com/image.png", + "scale": 1.0, + "headers": null, + "webHtmlElementStrategy": "never" + }, + "networkImage": { + "url": "https://example.com/image.png", + "scale": 2.0, + "headers": { + "Authorization": "Bearer token" + }, + "webHtmlElementStrategy": "fallback" + }, + "assetImageMinimal": { + "assetName": "assets/image.png", + "package": null + }, + "assetImage": { + "assetName": "assets/image.png", + "package": "design_system" + }, + "imageProviderNetwork": { + "type": "network", + "url": "https://example.com/image.png", + "scale": 1.0, + "headers": null, + "webHtmlElementStrategy": "never" + }, + "imageProviderAsset": { + "type": "asset", + "assetName": "assets/image.png", + "package": null + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/primitives.json b/packages/flutter_codec/test/golden/fixtures/primitives.json new file mode 100644 index 00000000..c6de071a --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/primitives.json @@ -0,0 +1,128 @@ +{ + "color": "#2196F3", + "colorTranslucent": "#802196F3", + "offset": { + "x": 12.0, + "y": 4.5 + }, + "radiusCircular": 8.0, + "radiusElliptical": { + "x": 8.0, + "y": 12.5 + }, + "rect": { + "left": 1.0, + "top": 2.0, + "right": 30.0, + "bottom": 40.0 + }, + "alignmentNamed": "topLeft", + "alignmentXY": { + "x": 0.25, + "y": -0.5 + }, + "alignmentDirectional": { + "start": 0.25, + "y": -0.5 + }, + "alignmentGeometryDirectional": { + "start": 0.25, + "y": -0.5 + }, + "borderRadiusCircular": 8.0, + "borderRadiusPerCorner": { + "topLeft": 8.0, + "topRight": 0.0, + "bottomLeft": 0.0, + "bottomRight": 0.0 + }, + "borderRadiusDirectional": { + "topStart": 8.0, + "topEnd": 0.0, + "bottomStart": 0.0, + "bottomEnd": 0.0 + }, + "borderRadiusGeometryDirectional": { + "topStart": 8.0, + "topEnd": 8.0, + "bottomStart": 8.0, + "bottomEnd": 8.0 + }, + "edgeInsetsAll": 16.0, + "edgeInsetsOnly": { + "left": 8.0, + "top": 4.0, + "right": 0.0, + "bottom": 0.0 + }, + "edgeInsetsDirectional": { + "start": 8.0, + "top": 0.0, + "end": 0.0, + "bottom": 0.0 + }, + "edgeInsetsGeometryDirectional": { + "start": 8.0, + "top": 0.0, + "end": 0.0, + "bottom": 0.0 + }, + "matrix4Identity": [ + 1.0, + 0.0, + 0.0, + 0.0, + 0.0, + 1.0, + 0.0, + 0.0, + 0.0, + 0.0, + 1.0, + 0.0, + 0.0, + 0.0, + 0.0, + 1.0 + ], + "matrix4Transformed": [ + 2.0, + 0.0, + 0.0, + 0.0, + 0.0, + 3.0, + 0.0, + 0.0, + 0.0, + 0.0, + 1.0, + 0.0, + 10.0, + 20.0, + 30.0, + 1.0 + ], + "locale": "en-US", + "localeWithScript": "zh-Hans-CN", + "fontFeature": { + "feature": "smcp", + "value": 1 + }, + "fontVariation": { + "axis": "wght", + "value": 600.0 + }, + "fontWeightNamed": "w600", + "fontWeightVariable": 550, + "textDecorationAtomic": "underline", + "textDecorationCombined": [ + "underline", + "lineThrough" + ], + "textHeightBehavior": { + "applyHeightToFirstAscent": false, + "applyHeightToLastDescent": true, + "leadingDistribution": "even" + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/shadows.json b/packages/flutter_codec/test/golden/fixtures/shadows.json new file mode 100644 index 00000000..beb075cd --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/shadows.json @@ -0,0 +1,38 @@ +{ + "shadowDefault": { + "color": "#000000", + "offset": { + "x": 0.0, + "y": 0.0 + }, + "blurRadius": 0.0 + }, + "shadow": { + "color": "#FF0000", + "offset": { + "x": 2.0, + "y": 4.0 + }, + "blurRadius": 6.0 + }, + "boxShadowDefault": { + "color": "#000000", + "offset": { + "x": 0.0, + "y": 0.0 + }, + "blurRadius": 0.0, + "spreadRadius": 0.0, + "blurStyle": "normal" + }, + "boxShadow": { + "color": "#FF0000", + "offset": { + "x": 2.0, + "y": 4.0 + }, + "blurRadius": 6.0, + "spreadRadius": 1.0, + "blurStyle": "outer" + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/shape_borders.json b/packages/flutter_codec/test/golden/fixtures/shape_borders.json new file mode 100644 index 00000000..9fb8172d --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/shape_borders.json @@ -0,0 +1,95 @@ +{ + "circleBorder": { + "side": "none", + "eccentricity": 0.0 + }, + "circleBorderSided": { + "side": { + "color": "#FF0000", + "width": 2.0, + "style": "solid", + "strokeAlign": "inside" + }, + "eccentricity": 0.5 + }, + "stadiumBorder": { + "side": { + "color": "#FF0000", + "width": 3.0, + "style": "solid", + "strokeAlign": "inside" + } + }, + "roundedRectangleBorder": { + "side": { + "color": "#FF0000", + "width": 2.0, + "style": "solid", + "strokeAlign": "inside" + }, + "borderRadius": 12.0 + }, + "beveledRectangleBorder": { + "side": "none", + "borderRadius": 4.0 + }, + "continuousRectangleBorder": { + "side": "none", + "borderRadius": 4.0 + }, + "roundedSuperellipseBorder": { + "side": { + "color": "#FF0000", + "width": 2.0, + "style": "solid", + "strokeAlign": "inside" + }, + "borderRadius": 8.0 + }, + "starBorder": { + "side": "none", + "points": 7.0, + "innerRadiusRatio": 0.3, + "pointRounding": 0.0, + "valleyRounding": 0.0, + "rotation": 0.0, + "squash": 0.0 + }, + "linearBorderEdge": { + "size": 0.5, + "alignment": -0.25 + }, + "linearBorder": { + "side": { + "color": "#FF0000", + "width": 2.0, + "style": "solid", + "strokeAlign": "inside" + }, + "start": { + "size": 0.5, + "alignment": 0.0 + }, + "end": null, + "top": { + "size": 1.0, + "alignment": -1.0 + }, + "bottom": null + }, + "shapeBorderStar": { + "type": "star", + "side": "none", + "points": 5.0, + "innerRadiusRatio": 0.4, + "pointRounding": 0.0, + "valleyRounding": 0.0, + "rotation": 0.0, + "squash": 0.0 + }, + "shapeBorderOval": { + "type": "circle", + "side": "none", + "eccentricity": 1.0 + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/text.json b/packages/flutter_codec/test/golden/fixtures/text.json new file mode 100644 index 00000000..e7925000 --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/text.json @@ -0,0 +1,118 @@ +{ + "textStyleDefault": { + "inherit": true, + "color": null, + "backgroundColor": null, + "fontSize": null, + "fontWeight": null, + "fontStyle": null, + "letterSpacing": null, + "wordSpacing": null, + "textBaseline": null, + "height": null, + "leadingDistribution": null, + "locale": null, + "shadows": null, + "decoration": null, + "decorationColor": null, + "decorationStyle": null, + "decorationThickness": null, + "fontFamily": null, + "fontFamilyFallback": null, + "package": null, + "overflow": null, + "fontFeatures": null, + "fontVariations": null + }, + "textStyleFull": { + "inherit": false, + "color": "#2196F3", + "backgroundColor": "#FFFDE7", + "fontSize": 18.0, + "fontWeight": "w700", + "fontStyle": "italic", + "letterSpacing": 0.25, + "wordSpacing": 1.5, + "textBaseline": "alphabetic", + "height": 1.3, + "leadingDistribution": "even", + "locale": "zh-CN", + "shadows": [ + { + "color": "#55000000", + "offset": { + "x": 1.0, + "y": 2.0 + }, + "blurRadius": 3.0 + } + ], + "decoration": null, + "decorationColor": "#FF0000", + "decorationStyle": "dashed", + "decorationThickness": 2.0, + "fontFamily": "Inter", + "fontFamilyFallback": [ + "Roboto", + "Arial" + ], + "package": "my_package", + "overflow": "ellipsis", + "fontFeatures": [ + { + "feature": "smcp", + "value": 1 + }, + { + "feature": "cv01", + "value": 3 + } + ], + "fontVariations": [ + { + "axis": "wght", + "value": 500.0 + }, + { + "axis": "slnt", + "value": -10.0 + } + ] + }, + "strutStyleDefault": { + "fontFamily": null, + "fontFamilyFallback": null, + "package": null, + "fontSize": null, + "height": null, + "leadingDistribution": null, + "leading": null, + "fontWeight": null, + "fontStyle": null, + "forceStrutHeight": null + }, + "strutStyleFull": { + "fontFamily": "Roboto", + "fontFamilyFallback": null, + "package": null, + "fontSize": 16.0, + "height": 1.5, + "leadingDistribution": null, + "leading": null, + "fontWeight": "w700", + "fontStyle": null, + "forceStrutHeight": false + }, + "strutStylePackage": { + "fontFamily": "Roboto", + "fontFamilyFallback": null, + "package": "my_pkg", + "fontSize": null, + "height": null, + "leadingDistribution": null, + "leading": null, + "fontWeight": null, + "fontStyle": null, + "forceStrutHeight": null + } +} diff --git a/packages/flutter_codec/test/golden/fixtures/widgets.json b/packages/flutter_codec/test/golden/fixtures/widgets.json new file mode 100644 index 00000000..088f8f33 --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/widgets.json @@ -0,0 +1,241 @@ +{ + "containerDefault": { + "key": null, + "alignment": null, + "padding": null, + "color": null, + "isAntiAlias": true, + "decoration": null, + "foregroundDecoration": null, + "width": null, + "height": null, + "constraints": null, + "margin": null, + "transform": null, + "transformAlignment": null, + "clipBehavior": "none", + "child": null + }, + "containerFull": { + "key": { + "type": "value", + "valueType": "string", + "value": "shell" + }, + "alignment": "centerRight", + "padding": 8.0, + "color": null, + "isAntiAlias": false, + "decoration": { + "type": "box", + "color": "#E0F2F1", + "image": null, + "border": null, + "borderRadius": 6.0, + "boxShadow": null, + "gradient": null, + "backgroundBlendMode": null, + "shape": "rectangle" + }, + "foregroundDecoration": { + "type": "box", + "color": null, + "image": null, + "border": { + "color": "#004D40", + "width": 1.0, + "style": "solid", + "strokeAlign": "inside" + }, + "borderRadius": null, + "boxShadow": null, + "gradient": null, + "backgroundBlendMode": null, + "shape": "rectangle" + }, + "width": null, + "height": null, + "constraints": { + "minWidth": 10.0, + "maxWidth": 100.0, + "minHeight": 20.0, + "maxHeight": 200.0 + }, + "margin": { + "start": 2.0, + "top": 0.0, + "end": 4.0, + "bottom": 0.0 + }, + "transform": [ + 2.0, + 0.0, + 0.0, + 0.0, + 0.0, + 3.0, + 0.0, + 0.0, + 0.0, + 0.0, + 1.0, + 0.0, + 10.0, + 20.0, + 30.0, + 1.0 + ], + "transformAlignment": "bottomLeft", + "clipBehavior": "antiAlias", + "child": { + "type": "container", + "key": null, + "alignment": null, + "padding": null, + "color": "#FF0000", + "isAntiAlias": true, + "decoration": null, + "foregroundDecoration": null, + "width": null, + "height": null, + "constraints": null, + "margin": null, + "transform": null, + "transformAlignment": null, + "clipBehavior": "none", + "child": null + } + }, + "textWidgetDefault": { + "key": null, + "data": "hello", + "style": null, + "strutStyle": null, + "textAlign": null, + "textDirection": null, + "locale": null, + "softWrap": null, + "overflow": null, + "maxLines": null, + "semanticsLabel": null, + "semanticsIdentifier": null, + "textWidthBasis": null, + "textHeightBehavior": null, + "selectionColor": null + }, + "textWidgetFull": { + "key": { + "type": "value", + "valueType": "string", + "value": "copy" + }, + "data": "hello", + "style": { + "inherit": true, + "color": "#102030", + "backgroundColor": null, + "fontSize": 18.0, + "fontWeight": "w600", + "fontStyle": null, + "letterSpacing": null, + "wordSpacing": null, + "textBaseline": null, + "height": null, + "leadingDistribution": null, + "locale": null, + "shadows": null, + "decoration": null, + "decorationColor": null, + "decorationStyle": null, + "decorationThickness": null, + "fontFamily": null, + "fontFamilyFallback": null, + "package": null, + "overflow": null, + "fontFeatures": null, + "fontVariations": null + }, + "strutStyle": { + "fontFamily": null, + "fontFamilyFallback": null, + "package": null, + "fontSize": 18.0, + "height": 1.25, + "leadingDistribution": null, + "leading": null, + "fontWeight": null, + "fontStyle": null, + "forceStrutHeight": null + }, + "textAlign": "center", + "textDirection": "rtl", + "locale": "en-US", + "softWrap": false, + "overflow": "ellipsis", + "maxLines": 2, + "semanticsLabel": "label", + "semanticsIdentifier": "copy-id", + "textWidthBasis": "longestLine", + "textHeightBehavior": { + "applyHeightToFirstAscent": false, + "applyHeightToLastDescent": true, + "leadingDistribution": "proportional" + }, + "selectionColor": "#330000FF" + }, + "widgetUnionContainerWithText": { + "type": "container", + "key": null, + "alignment": null, + "padding": 8.0, + "color": null, + "isAntiAlias": true, + "decoration": null, + "foregroundDecoration": null, + "width": null, + "height": null, + "constraints": null, + "margin": null, + "transform": null, + "transformAlignment": null, + "clipBehavior": "none", + "child": { + "type": "text", + "key": null, + "data": "hi", + "style": null, + "strutStyle": null, + "textAlign": "center", + "textDirection": null, + "locale": null, + "softWrap": null, + "overflow": null, + "maxLines": null, + "semanticsLabel": null, + "semanticsIdentifier": null, + "textWidthBasis": null, + "textHeightBehavior": null, + "selectionColor": null + } + }, + "keyString": { + "type": "value", + "valueType": "string", + "value": "foo" + }, + "keyInt": { + "type": "value", + "valueType": "int", + "value": 1 + }, + "keyDouble": { + "type": "value", + "valueType": "double", + "value": 1.5 + }, + "keyBool": { + "type": "value", + "valueType": "bool", + "value": true + } +} diff --git a/packages/flutter_codec/test/golden/golden_test.dart b/packages/flutter_codec/test/golden/golden_test.dart new file mode 100644 index 00000000..63e4a169 --- /dev/null +++ b/packages/flutter_codec/test/golden/golden_test.dart @@ -0,0 +1,1426 @@ +// Golden / fixture coverage for every public codec. +// +// For each codec this test: +// 1. Encodes a representative typed value and records the canonical JSON it +// produces in a per-family fixture under `test/golden/fixtures/*.json`. +// Those files are committed so the exact wire shape of every type is +// reviewable in one place and regressions surface as a golden diff. +// 2. Reads that JSON back, parses it, and asserts the round-trip: +// - value-equality (`==`) for the painting/rendering value types, +// - JSON stability (`encode(parse(json)) == json`) for the widget types +// that intentionally have no value equality, and +// - the documented narrowing for the few lossy types. +// +// To regenerate the fixtures after an intentional change: +// UPDATE_GOLDENS=true flutter test test/golden/golden_test.dart +import 'dart:convert'; +import 'dart:io'; +import 'dart:ui' as ui show BoxHeightStyle, BoxWidthStyle, Shadow; + +import 'package:ack/ack.dart' show CodecSchema; +import 'package:flutter/gestures.dart' show DragStartBehavior; +import 'package:flutter/material.dart' show MaterialTapTargetSize, ThemeMode; +import 'package:flutter/rendering.dart' + show + CrossAxisAlignment, + DecorationPosition, + FlexFit, + GrowthDirection, + HitTestBehavior, + MainAxisAlignment, + MainAxisSize, + ScrollDirection, + StackFit, + WrapAlignment, + WrapCrossAlignment; +import 'package:flutter/services.dart' show TextCapitalization; +import 'package:flutter/widgets.dart'; + +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +import '../support/json_safety.dart'; + +typedef _Json = Object?; + +const _fixturesDir = 'test/golden/fixtures'; +const _encoder = JsonEncoder.withIndent(' '); +final _update = Platform.environment['UPDATE_GOLDENS'] == 'true'; + +const _redBlue = [Color(0xFFFF0000), Color(0xFF0000FF)]; + +void main() { + for (final family in _families) { + group('golden/${family.file}', () { + final path = '$_fixturesDir/${family.file}.json'; + + test('encodes every type to the recorded fixture', () { + final actual = {}; + for (final fixture in family.cases) { + final encoded = fixture.encode(); + expect( + jsonSafetyViolation(encoded), + isNull, + reason: '${fixture.name} produced non-JSON-safe output', + ); + actual[fixture.name] = encoded; + } + + final actualText = _encoder.convert(actual); + final file = File(path); + if (_update) { + file.parent.createSync(recursive: true); + file.writeAsStringSync('$actualText\n'); + return; + } + + expect( + file.existsSync(), + isTrue, + reason: + 'Missing golden $path. Generate it with ' + 'UPDATE_GOLDENS=true flutter test test/golden/golden_test.dart', + ); + expect( + actualText, + file.readAsStringSync().trimRight(), + reason: + 'Golden drift in ${family.file}.json. If this change is ' + 'intentional, regenerate with UPDATE_GOLDENS=true.', + ); + }); + + for (final fixture in family.cases) { + test('${fixture.name} parses back from its JSON', () { + if (_update) return; + final golden = + jsonDecode(File(path).readAsStringSync()) as Map; + expect( + golden.containsKey(fixture.name), + isTrue, + reason: 'No golden entry for ${fixture.name}', + ); + final json = golden[fixture.name]; + expectJsonSafe(json); + fixture.verify(json); + }); + } + }); + } +} + +/// A single codec fixture: a representative value to [encode] and a [verify] +/// callback that checks the parsed-back result against the recorded JSON. +final class _Case { + _Case(this.name, this.encode, this.verify); + + final String name; + final _Json Function() encode; + final void Function(_Json json) verify; +} + +final class _Family { + _Family(this.file, this.cases); + + final String file; + final List<_Case> cases; +} + +/// Builds a fixture for an enum codec: the recorded JSON is the full, ordered +/// list of wire names the codec accepts/emits, and every name round-trips. +_Case _enumCase( + String name, + CodecSchema codec, + List values, +) { + return _Case(name, () => [for (final value in values) codec.encode(value)], ( + json, + ) { + final names = (json! as List).cast(); + expect( + names, + [for (final value in values) value.name], + reason: '$name wire vocabulary drifted from its enum declaration order', + ); + for (final wireName in names) { + expect(codec.parse(wireName)!.name, wireName); + } + }); +} + +final _families = <_Family>[ + _Family('primitives', _primitives), + _Family('borders', _borders), + _Family('shape_borders', _shapeBorders), + _Family('gradients', _gradients), + _Family('shadows', _shadows), + _Family('image_providers', _imageProviders), + _Family('decorations', _decorations), + _Family('decoration_image', _decorationImage), + _Family('constraints', _constraints), + _Family('text', _text), + _Family('widgets', _widgets), + _Family('enums', _enums), +]; + +// --- primitives ------------------------------------------------------------- + +final _primitives = <_Case>[ + _Case( + 'color', + () => colorCodec.encode(const Color(0xFF2196F3)), + (j) => expect(colorCodec.parse(j), const Color(0xFF2196F3)), + ), + _Case( + 'colorTranslucent', + () => colorCodec.encode(const Color(0x802196F3)), + (j) => expect(colorCodec.parse(j), const Color(0x802196F3)), + ), + _Case( + 'offset', + () => offsetCodec.encode(const Offset(12, 4.5)), + (j) => expect(offsetCodec.parse(j), const Offset(12, 4.5)), + ), + _Case( + 'radiusCircular', + () => radiusCodec.encode(const Radius.circular(8)), + (j) => expect(radiusCodec.parse(j), const Radius.circular(8)), + ), + _Case( + 'radiusElliptical', + () => radiusCodec.encode(const Radius.elliptical(8, 12.5)), + (j) => expect(radiusCodec.parse(j), const Radius.elliptical(8, 12.5)), + ), + _Case( + 'rect', + () => rectCodec.encode(const Rect.fromLTRB(1, 2, 30, 40)), + (j) => expect(rectCodec.parse(j), const Rect.fromLTRB(1, 2, 30, 40)), + ), + _Case( + 'alignmentNamed', + () => alignmentCodec.encode(Alignment.topLeft), + (j) => expect(alignmentCodec.parse(j), Alignment.topLeft), + ), + _Case( + 'alignmentXY', + () => alignmentCodec.encode(const Alignment(0.25, -0.5)), + (j) => expect(alignmentCodec.parse(j), const Alignment(0.25, -0.5)), + ), + _Case( + 'alignmentDirectional', + () => alignmentDirectionalCodec.encode( + const AlignmentDirectional(0.25, -0.5), + ), + (j) => expect( + alignmentDirectionalCodec.parse(j), + const AlignmentDirectional(0.25, -0.5), + ), + ), + _Case( + 'alignmentGeometryDirectional', + () => alignmentGeometryCodec.encode(const AlignmentDirectional(0.25, -0.5)), + (j) { + final parsed = alignmentGeometryCodec.parse(j); + expect(parsed, isA()); + expect(parsed, const AlignmentDirectional(0.25, -0.5)); + }, + ), + _Case( + 'borderRadiusCircular', + () => borderRadiusCodec.encode(BorderRadius.circular(8)), + (j) => expect(borderRadiusCodec.parse(j), BorderRadius.circular(8)), + ), + _Case( + 'borderRadiusPerCorner', + () => borderRadiusCodec.encode( + const BorderRadius.only(topLeft: Radius.circular(8)), + ), + (j) => expect( + borderRadiusCodec.parse(j), + const BorderRadius.only(topLeft: Radius.circular(8)), + ), + ), + _Case( + 'borderRadiusDirectional', + () => borderRadiusDirectionalCodec.encode( + const BorderRadiusDirectional.only(topStart: Radius.circular(8)), + ), + (j) => expect( + borderRadiusDirectionalCodec.parse(j), + const BorderRadiusDirectional.only(topStart: Radius.circular(8)), + ), + ), + _Case( + 'borderRadiusGeometryDirectional', + () => borderRadiusGeometryCodec.encode( + BorderRadiusDirectional.all(const Radius.circular(8)), + ), + (j) { + final parsed = borderRadiusGeometryCodec.parse(j); + expect(parsed, isA()); + expect(parsed, BorderRadiusDirectional.all(const Radius.circular(8))); + }, + ), + _Case( + 'edgeInsetsAll', + () => edgeInsetsCodec.encode(const EdgeInsets.all(16)), + (j) => expect(edgeInsetsCodec.parse(j), const EdgeInsets.all(16)), + ), + _Case( + 'edgeInsetsOnly', + () => edgeInsetsCodec.encode(const EdgeInsets.only(left: 8, top: 4)), + (j) => expect( + edgeInsetsCodec.parse(j), + const EdgeInsets.only(left: 8, top: 4), + ), + ), + _Case( + 'edgeInsetsDirectional', + () => edgeInsetsDirectionalCodec.encode( + const EdgeInsetsDirectional.only(start: 8), + ), + (j) => expect( + edgeInsetsDirectionalCodec.parse(j), + const EdgeInsetsDirectional.only(start: 8), + ), + ), + _Case( + 'edgeInsetsGeometryDirectional', + () => edgeInsetsGeometryCodec.encode( + const EdgeInsetsDirectional.only(start: 8), + ), + (j) { + final parsed = edgeInsetsGeometryCodec.parse(j); + expect(parsed, isA()); + expect(parsed, const EdgeInsetsDirectional.only(start: 8)); + }, + ), + _Case( + 'matrix4Identity', + () => matrix4Codec.encode(Matrix4.identity()), + (j) => expect(matrix4Codec.parse(j), Matrix4.identity()), + ), + _Case( + 'matrix4Transformed', + () => matrix4Codec.encode(_transformedMatrix()), + (j) => expect(matrix4Codec.parse(j), _transformedMatrix()), + ), + _Case( + 'locale', + () => localeCodec.encode(const Locale('en', 'US')), + (j) => expect(localeCodec.parse(j), const Locale('en', 'US')), + ), + _Case( + 'localeWithScript', + () => localeCodec.encode( + const Locale.fromSubtags( + languageCode: 'zh', + scriptCode: 'Hans', + countryCode: 'CN', + ), + ), + (j) => expect( + localeCodec.parse(j), + const Locale.fromSubtags( + languageCode: 'zh', + scriptCode: 'Hans', + countryCode: 'CN', + ), + ), + ), + _Case( + 'fontFeature', + () => fontFeatureCodec.encode(const FontFeature('smcp', 1)), + (j) => expect(fontFeatureCodec.parse(j), const FontFeature('smcp', 1)), + ), + _Case( + 'fontVariation', + () => fontVariationCodec.encode(const FontVariation('wght', 600)), + (j) => + expect(fontVariationCodec.parse(j), const FontVariation('wght', 600)), + ), + _Case( + 'fontWeightNamed', + () => fontWeightCodec.encode(FontWeight.w600), + (j) => expect(fontWeightCodec.parse(j), FontWeight.w600), + ), + _Case( + 'fontWeightVariable', + () => fontWeightCodec.encode(const FontWeight(550)), + (j) => expect(fontWeightCodec.parse(j), const FontWeight(550)), + ), + _Case( + 'textDecorationAtomic', + () => textDecorationCodec.encode(TextDecoration.underline), + (j) => expect(textDecorationCodec.parse(j), TextDecoration.underline), + ), + _Case( + 'textDecorationCombined', + () => textDecorationCodec.encode( + TextDecoration.combine([ + TextDecoration.underline, + TextDecoration.lineThrough, + ]), + ), + (j) => expect( + textDecorationCodec.parse(j), + TextDecoration.combine([ + TextDecoration.underline, + TextDecoration.lineThrough, + ]), + ), + ), + _Case( + 'textHeightBehavior', + () => textHeightBehaviorCodec.encode( + const TextHeightBehavior( + applyHeightToFirstAscent: false, + leadingDistribution: TextLeadingDistribution.even, + ), + ), + (j) => expect( + textHeightBehaviorCodec.parse(j), + const TextHeightBehavior( + applyHeightToFirstAscent: false, + leadingDistribution: TextLeadingDistribution.even, + ), + ), + ), +]; + +// --- borders ---------------------------------------------------------------- + +final _borders = <_Case>[ + _Case( + 'strokeAlignNamed', + () => strokeAlignCodec.encode(BorderSide.strokeAlignOutside), + (j) => expect(strokeAlignCodec.parse(j), BorderSide.strokeAlignOutside), + ), + _Case( + 'strokeAlignNumeric', + () => strokeAlignCodec.encode(0.5), + (j) => expect(strokeAlignCodec.parse(j), 0.5), + ), + _Case( + 'borderSideNone', + () => borderSideCodec.encode(BorderSide.none), + (j) => expect(borderSideCodec.parse(j), BorderSide.none), + ), + _Case( + 'borderSideFull', + () => borderSideCodec.encode( + const BorderSide( + color: Color(0xFFFF0000), + width: 2, + style: BorderStyle.none, + strokeAlign: BorderSide.strokeAlignCenter, + ), + ), + (j) => expect( + borderSideCodec.parse(j), + const BorderSide( + color: Color(0xFFFF0000), + width: 2, + style: BorderStyle.none, + strokeAlign: BorderSide.strokeAlignCenter, + ), + ), + ), + _Case( + 'borderNone', + () => borderCodec.encode(const Border()), + (j) => expect(borderCodec.parse(j), const Border()), + ), + _Case( + 'borderUniform', + () => borderCodec.encode( + Border.all(color: const Color(0xFFFF0000), width: 2), + ), + (j) => expect( + borderCodec.parse(j), + Border.all(color: const Color(0xFFFF0000), width: 2), + ), + ), + _Case( + 'borderMixed', + () => borderCodec.encode( + const Border( + top: BorderSide(color: Color(0xFFFF0000), width: 2), + bottom: BorderSide(color: Color(0xFF0000FF), width: 3), + ), + ), + (j) => expect( + borderCodec.parse(j), + const Border( + top: BorderSide(color: Color(0xFFFF0000), width: 2), + bottom: BorderSide(color: Color(0xFF0000FF), width: 3), + ), + ), + ), + _Case( + 'borderDirectional', + () => borderDirectionalCodec.encode( + const BorderDirectional( + start: BorderSide(color: Color(0xFFFF0000), width: 2), + ), + ), + (j) => expect( + borderDirectionalCodec.parse(j), + const BorderDirectional( + start: BorderSide(color: Color(0xFFFF0000), width: 2), + ), + ), + ), + _Case( + 'boxBorderDirectional', + () => boxBorderCodec.encode( + const BorderDirectional(start: BorderSide(color: Color(0xFFFF0000))), + ), + (j) { + final parsed = boxBorderCodec.parse(j); + expect(parsed, isA()); + expect( + parsed, + const BorderDirectional(start: BorderSide(color: Color(0xFFFF0000))), + ); + }, + ), +]; + +// --- shape borders ---------------------------------------------------------- + +final _shapeBorders = <_Case>[ + _Case( + 'circleBorder', + () => circleBorderCodec.encode(const CircleBorder()), + (j) => expect(circleBorderCodec.parse(j), const CircleBorder()), + ), + _Case( + 'circleBorderSided', + () => circleBorderCodec.encode( + const CircleBorder( + side: BorderSide(color: Color(0xFFFF0000), width: 2), + eccentricity: 0.5, + ), + ), + (j) => expect( + circleBorderCodec.parse(j), + const CircleBorder( + side: BorderSide(color: Color(0xFFFF0000), width: 2), + eccentricity: 0.5, + ), + ), + ), + _Case( + 'stadiumBorder', + () => stadiumBorderCodec.encode( + const StadiumBorder(side: BorderSide(color: Color(0xFFFF0000), width: 3)), + ), + (j) => expect( + stadiumBorderCodec.parse(j), + const StadiumBorder(side: BorderSide(color: Color(0xFFFF0000), width: 3)), + ), + ), + _Case( + 'roundedRectangleBorder', + () => roundedRectangleBorderCodec.encode( + RoundedRectangleBorder( + side: const BorderSide(color: Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(12), + ), + ), + (j) => expect( + roundedRectangleBorderCodec.parse(j), + RoundedRectangleBorder( + side: const BorderSide(color: Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(12), + ), + ), + ), + _Case( + 'beveledRectangleBorder', + () => beveledRectangleBorderCodec.encode( + BeveledRectangleBorder(borderRadius: BorderRadius.circular(4)), + ), + (j) => expect( + beveledRectangleBorderCodec.parse(j), + BeveledRectangleBorder(borderRadius: BorderRadius.circular(4)), + ), + ), + _Case( + 'continuousRectangleBorder', + () => continuousRectangleBorderCodec.encode( + ContinuousRectangleBorder(borderRadius: BorderRadius.circular(4)), + ), + (j) => expect( + continuousRectangleBorderCodec.parse(j), + ContinuousRectangleBorder(borderRadius: BorderRadius.circular(4)), + ), + ), + _Case( + 'roundedSuperellipseBorder', + () => roundedSuperellipseBorderCodec.encode( + RoundedSuperellipseBorder( + side: const BorderSide(color: Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(8), + ), + ), + (j) => expect( + roundedSuperellipseBorderCodec.parse(j), + RoundedSuperellipseBorder( + side: const BorderSide(color: Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(8), + ), + ), + ), + _Case( + 'starBorder', + () => starBorderCodec.encode( + const StarBorder(points: 7, innerRadiusRatio: 0.3), + ), + (j) => expect( + starBorderCodec.parse(j), + const StarBorder(points: 7, innerRadiusRatio: 0.3), + ), + ), + // StarBorder.polygon is intentionally not recorded as a golden: its encoded + // innerRadiusRatio is the polygon incircle (cos(pi / sides)), a libm-derived + // value that is not guaranteed bit-identical across platforms. Its narrowing + // round-trip is covered with a tolerance in shape_borders_test.dart. + _Case( + 'linearBorderEdge', + () => linearBorderEdgeCodec.encode( + const LinearBorderEdge(size: 0.5, alignment: -0.25), + ), + (j) => expect( + linearBorderEdgeCodec.parse(j), + const LinearBorderEdge(size: 0.5, alignment: -0.25), + ), + ), + _Case( + 'linearBorder', + () => linearBorderCodec.encode( + const LinearBorder( + side: BorderSide(color: Color(0xFFFF0000), width: 2), + start: LinearBorderEdge(size: 0.5), + top: LinearBorderEdge(alignment: -1), + ), + ), + (j) => expect( + linearBorderCodec.parse(j), + const LinearBorder( + side: BorderSide(color: Color(0xFFFF0000), width: 2), + start: LinearBorderEdge(size: 0.5), + top: LinearBorderEdge(alignment: -1), + ), + ), + ), + _Case('shapeBorderStar', () => shapeBorderCodec.encode(const StarBorder()), ( + j, + ) { + final parsed = shapeBorderCodec.parse(j); + expect(parsed, isA()); + expect(parsed, const StarBorder()); + }), + // OvalBorder extends CircleBorder, so the union routes it through the + // "circle" branch and it round-trips as the painted-equivalent + // CircleBorder(eccentricity: 1.0). + _Case( + 'shapeBorderOval', + () => shapeBorderCodec.encode(const OvalBorder()), + (j) => + expect(shapeBorderCodec.parse(j), const CircleBorder(eccentricity: 1)), + ), +]; + +// --- gradients -------------------------------------------------------------- + +final _gradients = <_Case>[ + _Case( + 'linearGradient', + () => linearGradientCodec.encode(const LinearGradient(colors: _redBlue)), + (j) => expect( + linearGradientCodec.parse(j), + const LinearGradient(colors: _redBlue), + ), + ), + _Case( + 'linearGradientFull', + () => linearGradientCodec.encode( + const LinearGradient( + begin: Alignment.topLeft, + end: Alignment.bottomRight, + colors: _redBlue, + stops: [0, 1], + tileMode: TileMode.mirror, + ), + ), + (j) => expect( + linearGradientCodec.parse(j), + const LinearGradient( + begin: Alignment.topLeft, + end: Alignment.bottomRight, + colors: _redBlue, + stops: [0, 1], + tileMode: TileMode.mirror, + ), + ), + ), + _Case( + 'radialGradient', + () => radialGradientCodec.encode(const RadialGradient(colors: _redBlue)), + (j) => expect( + radialGradientCodec.parse(j), + const RadialGradient(colors: _redBlue), + ), + ), + _Case( + 'radialGradientFocal', + () => radialGradientCodec.encode( + const RadialGradient( + colors: _redBlue, + focal: Alignment.topLeft, + focalRadius: 0.25, + ), + ), + (j) => expect( + radialGradientCodec.parse(j), + const RadialGradient( + colors: _redBlue, + focal: Alignment.topLeft, + focalRadius: 0.25, + ), + ), + ), + _Case( + 'sweepGradient', + () => sweepGradientCodec.encode(const SweepGradient(colors: _redBlue)), + (j) => expect( + sweepGradientCodec.parse(j), + const SweepGradient(colors: _redBlue), + ), + ), + _Case( + 'gradientUnionLinear', + () => gradientCodec.encode(const LinearGradient(colors: _redBlue)), + (j) { + final parsed = gradientCodec.parse(j); + expect(parsed, isA()); + expect(parsed, const LinearGradient(colors: _redBlue)); + }, + ), +]; + +// --- shadows ---------------------------------------------------------------- + +final _shadows = <_Case>[ + _Case( + 'shadowDefault', + () => shadowCodec.encode(const ui.Shadow()), + (j) => expect(shadowCodec.parse(j), const ui.Shadow()), + ), + _Case( + 'shadow', + () => shadowCodec.encode( + const ui.Shadow( + color: Color(0xFFFF0000), + offset: Offset(2, 4), + blurRadius: 6, + ), + ), + (j) => expect( + shadowCodec.parse(j), + const ui.Shadow( + color: Color(0xFFFF0000), + offset: Offset(2, 4), + blurRadius: 6, + ), + ), + ), + _Case( + 'boxShadowDefault', + () => boxShadowCodec.encode(const BoxShadow()), + (j) => expect(boxShadowCodec.parse(j), const BoxShadow()), + ), + _Case( + 'boxShadow', + () => boxShadowCodec.encode( + const BoxShadow( + color: Color(0xFFFF0000), + offset: Offset(2, 4), + blurRadius: 6, + spreadRadius: 1, + blurStyle: BlurStyle.outer, + ), + ), + (j) => expect( + boxShadowCodec.parse(j), + const BoxShadow( + color: Color(0xFFFF0000), + offset: Offset(2, 4), + blurRadius: 6, + spreadRadius: 1, + blurStyle: BlurStyle.outer, + ), + ), + ), +]; + +// --- image providers -------------------------------------------------------- + +final _imageProviders = <_Case>[ + _Case( + 'networkImageMinimal', + () => networkImageCodec.encode( + const NetworkImage('https://example.com/image.png'), + ), + (j) => expect( + networkImageCodec.parse(j), + const NetworkImage('https://example.com/image.png'), + ), + ), + _Case( + 'networkImage', + () => networkImageCodec.encode( + const NetworkImage( + 'https://example.com/image.png', + scale: 2, + headers: {'Authorization': 'Bearer token'}, + webHtmlElementStrategy: WebHtmlElementStrategy.fallback, + ), + ), + (j) => expect( + networkImageCodec.parse(j), + const NetworkImage( + 'https://example.com/image.png', + scale: 2, + headers: {'Authorization': 'Bearer token'}, + webHtmlElementStrategy: WebHtmlElementStrategy.fallback, + ), + ), + ), + _Case( + 'assetImageMinimal', + () => assetImageCodec.encode(const AssetImage('assets/image.png')), + (j) => + expect(assetImageCodec.parse(j), const AssetImage('assets/image.png')), + ), + _Case( + 'assetImage', + () => assetImageCodec.encode( + const AssetImage('assets/image.png', package: 'design_system'), + ), + (j) => expect( + assetImageCodec.parse(j), + const AssetImage('assets/image.png', package: 'design_system'), + ), + ), + _Case( + 'imageProviderNetwork', + () => imageProviderCodec.encode( + const NetworkImage('https://example.com/image.png'), + ), + (j) { + final parsed = imageProviderCodec.parse(j); + expect(parsed, isA()); + expect(parsed, const NetworkImage('https://example.com/image.png')); + }, + ), + _Case( + 'imageProviderAsset', + () => imageProviderCodec.encode(const AssetImage('assets/image.png')), + (j) { + final parsed = imageProviderCodec.parse(j); + expect(parsed, isA()); + expect(parsed, const AssetImage('assets/image.png')); + }, + ), +]; + +// --- decorations ------------------------------------------------------------ + +final _decorations = <_Case>[ + _Case( + 'boxDecorationDefault', + () => boxDecorationCodec.encode(const BoxDecoration()), + (j) => expect(boxDecorationCodec.parse(j), const BoxDecoration()), + ), + _Case( + 'boxDecorationFull', + () => boxDecorationCodec.encode(_fullBoxDecoration()), + (j) => expect(boxDecorationCodec.parse(j), _fullBoxDecoration()), + ), + _Case( + 'boxDecorationImage', + () => boxDecorationCodec.encode( + BoxDecoration( + image: DecorationImage( + image: const NetworkImage('https://example.com/foo.png'), + fit: BoxFit.cover, + alignment: Alignment.topLeft, + ), + ), + ), + (j) => expect( + boxDecorationCodec.parse(j), + BoxDecoration( + image: DecorationImage( + image: const NetworkImage('https://example.com/foo.png'), + fit: BoxFit.cover, + alignment: Alignment.topLeft, + ), + ), + ), + ), + _Case( + 'shapeDecorationCircle', + () => shapeDecorationCodec.encode( + const ShapeDecoration(shape: CircleBorder()), + ), + (j) => expect( + shapeDecorationCodec.parse(j), + const ShapeDecoration(shape: CircleBorder()), + ), + ), + _Case( + 'shapeDecorationFull', + () => shapeDecorationCodec.encode(_fullShapeDecoration()), + (j) => expect(shapeDecorationCodec.parse(j), _fullShapeDecoration()), + ), + _Case( + 'shapeDecorationImage', + () => shapeDecorationCodec.encode( + const ShapeDecoration( + shape: CircleBorder(), + image: DecorationImage( + image: NetworkImage('https://example.com/image.png'), + fit: BoxFit.cover, + ), + ), + ), + (j) => expect( + shapeDecorationCodec.parse(j), + const ShapeDecoration( + shape: CircleBorder(), + image: DecorationImage( + image: NetworkImage('https://example.com/image.png'), + fit: BoxFit.cover, + ), + ), + ), + ), + _Case( + 'decorationUnionBox', + () => decorationCodec.encode(const BoxDecoration(color: Color(0xFF2196F3))), + (j) { + final parsed = decorationCodec.parse(j); + expect(parsed, isA()); + expect(parsed, const BoxDecoration(color: Color(0xFF2196F3))); + }, + ), + _Case( + 'decorationUnionShape', + () => decorationCodec.encode(const ShapeDecoration(shape: CircleBorder())), + (j) { + final parsed = decorationCodec.parse(j); + expect(parsed, isA()); + expect(parsed, const ShapeDecoration(shape: CircleBorder())); + }, + ), +]; + +// --- decoration image ------------------------------------------------------- + +final _decorationImage = <_Case>[ + _Case( + 'decorationImageMinimal', + () => decorationImageCodec.encode( + DecorationImage( + image: const NetworkImage('https://example.com/image.png'), + ), + ), + (j) => expect( + decorationImageCodec.parse(j), + DecorationImage( + image: const NetworkImage('https://example.com/image.png'), + ), + ), + ), + _Case( + 'decorationImageFull', + () => decorationImageCodec.encode(_fullDecorationImage()), + (j) => expect(decorationImageCodec.parse(j), _fullDecorationImage()), + ), +]; + +// --- constraints ------------------------------------------------------------ + +final _constraints = <_Case>[ + _Case( + 'boxConstraintsDefault', + () => boxConstraintsCodec.encode(const BoxConstraints()), + (j) => expect(boxConstraintsCodec.parse(j), const BoxConstraints()), + ), + _Case( + 'boxConstraintsFinite', + () => boxConstraintsCodec.encode( + const BoxConstraints( + minWidth: 1, + maxWidth: 10, + minHeight: 2, + maxHeight: 20, + ), + ), + (j) => expect( + boxConstraintsCodec.parse(j), + const BoxConstraints( + minWidth: 1, + maxWidth: 10, + minHeight: 2, + maxHeight: 20, + ), + ), + ), + _Case( + 'boxConstraintsExpand', + () => boxConstraintsCodec.encode(const BoxConstraints.expand()), + (j) => expect(boxConstraintsCodec.parse(j), const BoxConstraints.expand()), + ), + _Case( + 'constraintsUnionBox', + () => constraintsCodec.encode( + const BoxConstraints( + minWidth: 1, + maxWidth: 10, + minHeight: 2, + maxHeight: 20, + ), + ), + (j) => expect( + constraintsCodec.parse(j), + const BoxConstraints( + minWidth: 1, + maxWidth: 10, + minHeight: 2, + maxHeight: 20, + ), + ), + ), +]; + +// --- text + strut styles ---------------------------------------------------- + +final _text = <_Case>[ + _Case( + 'textStyleDefault', + () => textStyleCodec.encode(const TextStyle()), + (j) => expect(textStyleCodec.parse(j), const TextStyle()), + ), + _Case( + 'textStyleFull', + () => textStyleCodec.encode(_fullTextStyle()), + (j) => expect(textStyleCodec.parse(j), _fullTextStyle()), + ), + _Case( + 'strutStyleDefault', + () => strutStyleCodec.encode(const StrutStyle()), + (j) => expect(strutStyleCodec.parse(j), const StrutStyle()), + ), + _Case( + 'strutStyleFull', + () => strutStyleCodec.encode( + const StrutStyle( + fontFamily: 'Roboto', + fontSize: 16, + height: 1.5, + fontWeight: FontWeight.w700, + forceStrutHeight: false, + ), + ), + (j) => expect( + strutStyleCodec.parse(j), + const StrutStyle( + fontFamily: 'Roboto', + fontSize: 16, + height: 1.5, + fontWeight: FontWeight.w700, + forceStrutHeight: false, + ), + ), + ), + _Case( + 'strutStylePackage', + () => strutStyleCodec.encode( + const StrutStyle(fontFamily: 'Roboto', package: 'my_pkg'), + ), + (j) => expect( + strutStyleCodec.parse(j), + const StrutStyle(fontFamily: 'Roboto', package: 'my_pkg'), + ), + ), +]; + +// --- widgets ---------------------------------------------------------------- + +final _widgets = <_Case>[ + _Case('containerDefault', () => containerWidgetCodec.encode(Container()), ( + j, + ) { + expect(containerWidgetCodec.parse(j), isA()); + expect(containerWidgetCodec.encode(containerWidgetCodec.parse(j)), j); + }), + _Case('containerFull', () => containerWidgetCodec.encode(_fullContainer()), ( + j, + ) { + expect(containerWidgetCodec.parse(j), isA()); + expect(containerWidgetCodec.encode(containerWidgetCodec.parse(j)), j); + }), + _Case( + 'textWidgetDefault', + () => textWidgetCodec.encode(const Text('hello')), + (j) { + expect(textWidgetCodec.parse(j), isA()); + expect(textWidgetCodec.encode(textWidgetCodec.parse(j)), j); + }, + ), + _Case('textWidgetFull', () => textWidgetCodec.encode(_fullText()), (j) { + expect(textWidgetCodec.parse(j), isA()); + expect(textWidgetCodec.encode(textWidgetCodec.parse(j)), j); + }), + _Case( + 'widgetUnionContainerWithText', + () => widgetCodec.encode( + Container( + padding: const EdgeInsets.all(8), + child: const Text('hi', textAlign: TextAlign.center), + ), + ), + (j) { + final parsed = widgetCodec.parse(j); + expect(parsed, isA()); + expect((parsed! as Container).child, isA()); + expect(widgetCodec.encode(parsed), j); + }, + ), + _Case( + 'keyString', + () => keyCodec.encode(const ValueKey('foo')), + (j) => expect(keyCodec.parse(j), const ValueKey('foo')), + ), + _Case( + 'keyInt', + () => keyCodec.encode(const ValueKey(1)), + (j) => expect(keyCodec.parse(j), const ValueKey(1)), + ), + _Case( + 'keyDouble', + () => keyCodec.encode(const ValueKey(1.5)), + (j) => expect(keyCodec.parse(j), const ValueKey(1.5)), + ), + _Case( + 'keyBool', + () => keyCodec.encode(const ValueKey(true)), + (j) => expect(keyCodec.parse(j), const ValueKey(true)), + ), +]; + +// --- enums ------------------------------------------------------------------ + +final _enums = <_Case>[ + _enumCase('Axis', axisCodec, Axis.values), + _enumCase( + 'AxisDirection', + axisDirectionCodec, + AxisDirection.values, + ), + _enumCase('BlendMode', blendModeCodec, BlendMode.values), + _enumCase('BlurStyle', blurStyleCodec, BlurStyle.values), + _enumCase('BorderStyle', borderStyleCodec, BorderStyle.values), + _enumCase('BoxFit', boxFitCodec, BoxFit.values), + _enumCase( + 'BoxHeightStyle', + boxHeightStyleCodec, + ui.BoxHeightStyle.values, + ), + _enumCase('BoxShape', boxShapeCodec, BoxShape.values), + _enumCase( + 'BoxWidthStyle', + boxWidthStyleCodec, + ui.BoxWidthStyle.values, + ), + _enumCase('Brightness', brightnessCodec, Brightness.values), + _enumCase('Clip', clipCodec, Clip.values), + _enumCase( + 'CrossAxisAlignment', + crossAxisAlignmentCodec, + CrossAxisAlignment.values, + ), + _enumCase( + 'DecorationPosition', + decorationPositionCodec, + DecorationPosition.values, + ), + _enumCase( + 'DragStartBehavior', + dragStartBehaviorCodec, + DragStartBehavior.values, + ), + _enumCase( + 'FilterQuality', + filterQualityCodec, + FilterQuality.values, + ), + _enumCase('FlexFit', flexFitCodec, FlexFit.values), + _enumCase('FontStyle', fontStyleCodec, FontStyle.values), + _enumCase( + 'GrowthDirection', + growthDirectionCodec, + GrowthDirection.values, + ), + _enumCase( + 'HitTestBehavior', + hitTestBehaviorCodec, + HitTestBehavior.values, + ), + _enumCase('ImageRepeat', imageRepeatCodec, ImageRepeat.values), + _enumCase( + 'WebHtmlElementStrategy', + webHtmlElementStrategyCodec, + WebHtmlElementStrategy.values, + ), + _enumCase( + 'MainAxisAlignment', + mainAxisAlignmentCodec, + MainAxisAlignment.values, + ), + _enumCase( + 'MainAxisSize', + mainAxisSizeCodec, + MainAxisSize.values, + ), + _enumCase( + 'MaterialTapTargetSize', + materialTapTargetSizeCodec, + MaterialTapTargetSize.values, + ), + _enumCase( + 'PaintingStyle', + paintingStyleCodec, + PaintingStyle.values, + ), + _enumCase( + 'PathFillType', + pathFillTypeCodec, + PathFillType.values, + ), + _enumCase( + 'PlaceholderAlignment', + placeholderAlignmentCodec, + PlaceholderAlignment.values, + ), + _enumCase( + 'ScrollDirection', + scrollDirectionCodec, + ScrollDirection.values, + ), + _enumCase( + 'ScrollViewKeyboardDismissBehavior', + scrollViewKeyboardDismissBehaviorCodec, + ScrollViewKeyboardDismissBehavior.values, + ), + _enumCase('StackFit', stackFitCodec, StackFit.values), + _enumCase('StrokeCap', strokeCapCodec, StrokeCap.values), + _enumCase('StrokeJoin', strokeJoinCodec, StrokeJoin.values), + _enumCase( + 'TargetPlatform', + targetPlatformCodec, + TargetPlatform.values, + ), + _enumCase('TextAlign', textAlignCodec, TextAlign.values), + _enumCase( + 'TextBaseline', + textBaselineCodec, + TextBaseline.values, + ), + _enumCase( + 'TextCapitalization', + textCapitalizationCodec, + TextCapitalization.values, + ), + _enumCase( + 'TextDecorationStyle', + textDecorationStyleCodec, + TextDecorationStyle.values, + ), + _enumCase( + 'TextDirection', + textDirectionCodec, + TextDirection.values, + ), + _enumCase( + 'TextLeadingDistribution', + textLeadingDistributionCodec, + TextLeadingDistribution.values, + ), + _enumCase( + 'TextOverflow', + textOverflowCodec, + TextOverflow.values, + ), + _enumCase( + 'TextWidthBasis', + textWidthBasisCodec, + TextWidthBasis.values, + ), + _enumCase('ThemeMode', themeModeCodec, ThemeMode.values), + _enumCase('TileMode', tileModeCodec, TileMode.values), + _enumCase( + 'VerticalDirection', + verticalDirectionCodec, + VerticalDirection.values, + ), + _enumCase( + 'WrapAlignment', + wrapAlignmentCodec, + WrapAlignment.values, + ), + _enumCase( + 'WrapCrossAlignment', + wrapCrossAlignmentCodec, + WrapCrossAlignment.values, + ), +]; + +// --- representative composite values --------------------------------------- + +// A non-identity matrix built from translate + scale only. Trigonometric +// helpers (rotateZ, etc.) can differ in the last ULP across platforms, which +// would make the recorded golden machine-dependent; translate/scale are exact. +Matrix4 _transformedMatrix() { + final matrix = Matrix4.identity()..translateByDouble(10, 20, 30, 1); + matrix.setEntry(0, 0, 2); + matrix.setEntry(1, 1, 3); + return matrix; +} + +Container _fullContainer() => Container( + key: const ValueKey('shell'), + alignment: Alignment.centerRight, + padding: const EdgeInsets.all(8), + isAntiAlias: false, + decoration: BoxDecoration( + color: const Color(0xFFE0F2F1), + borderRadius: BorderRadius.circular(6), + ), + foregroundDecoration: BoxDecoration( + border: Border.all(color: const Color(0xFF004D40)), + ), + constraints: const BoxConstraints( + minWidth: 10, + maxWidth: 100, + minHeight: 20, + maxHeight: 200, + ), + margin: const EdgeInsetsDirectional.only(start: 2, end: 4), + transform: _transformedMatrix(), + transformAlignment: Alignment.bottomLeft, + clipBehavior: Clip.antiAlias, + child: Container(color: const Color(0xFFFF0000)), +); + +BoxDecoration _fullBoxDecoration() => BoxDecoration( + color: const Color(0xFF2196F3), + border: Border.all(color: const Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(8), + boxShadow: const [ + BoxShadow( + color: Color(0x55000000), + offset: Offset(1, 2), + blurRadius: 3, + spreadRadius: 4, + blurStyle: BlurStyle.outer, + ), + ], + gradient: const LinearGradient( + begin: Alignment.topLeft, + end: Alignment.bottomRight, + colors: _redBlue, + stops: [0, 1], + tileMode: TileMode.mirror, + ), + backgroundBlendMode: BlendMode.multiply, +); + +ShapeDecoration _fullShapeDecoration() => ShapeDecoration( + color: const Color(0xFF2196F3), + shadows: const [ + BoxShadow(color: Color(0x55000000), offset: Offset(1, 2), blurRadius: 3), + ], + shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)), +); + +DecorationImage _fullDecorationImage() => DecorationImage( + image: const AssetImage('icons/foo.png', package: 'my_pkg'), + fit: BoxFit.cover, + alignment: Alignment.bottomRight, + centerSlice: const Rect.fromLTRB(1, 2, 3, 4), + repeat: ImageRepeat.repeatX, + matchTextDirection: true, + scale: 1.5, + opacity: 0.75, + filterQuality: FilterQuality.low, + invertColors: true, + isAntiAlias: true, +); + +TextStyle _fullTextStyle() => const TextStyle( + inherit: false, + color: Color(0xFF2196F3), + backgroundColor: Color(0xFFFFFDE7), + fontSize: 18, + fontWeight: FontWeight.bold, + fontStyle: FontStyle.italic, + letterSpacing: 0.25, + wordSpacing: 1.5, + textBaseline: TextBaseline.alphabetic, + height: 1.3, + leadingDistribution: TextLeadingDistribution.even, + locale: Locale('zh', 'CN'), + shadows: [ + ui.Shadow(color: Color(0x55000000), offset: Offset(1, 2), blurRadius: 3), + ], + decorationColor: Color(0xFFFF0000), + decorationStyle: TextDecorationStyle.dashed, + decorationThickness: 2, + fontFamily: 'Inter', + fontFamilyFallback: ['Roboto', 'Arial'], + package: 'my_package', + overflow: TextOverflow.ellipsis, + fontFeatures: [FontFeature('smcp'), FontFeature('cv01', 3)], + fontVariations: [FontVariation('wght', 500), FontVariation('slnt', -10)], +); + +Text _fullText() => const Text( + 'hello', + key: ValueKey('copy'), + style: TextStyle( + color: Color(0xFF102030), + fontSize: 18, + fontWeight: FontWeight.w600, + ), + strutStyle: StrutStyle(fontSize: 18, height: 1.25), + textAlign: TextAlign.center, + textDirection: TextDirection.rtl, + locale: Locale('en', 'US'), + softWrap: false, + overflow: TextOverflow.ellipsis, + maxLines: 2, + semanticsLabel: 'label', + semanticsIdentifier: 'copy-id', + textWidthBasis: TextWidthBasis.longestLine, + textHeightBehavior: TextHeightBehavior( + applyHeightToFirstAscent: false, + applyHeightToLastDescent: true, + ), + selectionColor: Color(0x330000FF), +); From c51d60bae9dc7282cd890b6565664658d44f84ef Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Wed, 10 Jun 2026 20:08:29 -0400 Subject: [PATCH 46/53] fix(flutter_codec): enforce codec invariants, fail loudly on unencodable state Address confirmed codec-review findings by tightening the codec boundary instead of silently dropping or admitting invalid runtime state: - TextStyle.foreground/background and Text.textScaler now throw UnsupportedError on encode rather than being silently dropped to a colorless/unscaled value. - keyCodec matches the exact ValueKey runtime type, so ValueKey subclasses (e.g. PageStorageKey) are rejected instead of re-encoded as a plain ValueKey. - Reject inverted BoxConstraints, negative Container padding/margin, BoxShape.circle combined with a borderRadius, and gradient stops whose length differs from colors. - Constrain FontVariation.value to the [-32768, 32768) 16.16 fixed-point range. - AlignmentDirectional center-column constants (topCenter/center/bottomCenter) encode as {start, y} through alignmentGeometryCodec so they round-trip as directional values. - Tighten colorCodec rgb/rgba patterns to 0-255 so the generated JSON Schema no longer admits out-of-range channels. Each fix has focused regression tests. The discriminated-union ambiguity fix lands separately via ack #115 (merged into this branch). --- .../flutter_codec/lib/src/constraints.dart | 51 +++-- .../flutter_codec/lib/src/decorations.dart | 8 + packages/flutter_codec/lib/src/gradients.dart | 193 ++++++++++-------- .../lib/src/primitives/alignment.dart | 74 +++++-- .../lib/src/primitives/color.dart | 28 ++- .../lib/src/primitives/font_variation.dart | 6 +- .../flutter_codec/lib/src/text_style.dart | 23 ++- .../lib/src/widgets/container.dart | 10 + .../flutter_codec/lib/src/widgets/key.dart | 43 ++-- .../flutter_codec/lib/src/widgets/text.dart | 17 +- .../test/constraints/constraints_test.dart | 39 ++++ .../test/decorations/decorations_test.dart | 16 +- .../test/gradients/gradients_test.dart | 44 ++++ .../test/primitives/alignment_test.dart | 21 ++ .../test/primitives/color_test.dart | 11 + .../test/primitives/font_variation_test.dart | 30 +++ .../test/text_style/text_style_test.dart | 20 +- .../test/widgets/container_test.dart | 12 ++ .../flutter_codec/test/widgets/key_test.dart | 9 + .../flutter_codec/test/widgets/text_test.dart | 10 +- 20 files changed, 513 insertions(+), 152 deletions(-) diff --git a/packages/flutter_codec/lib/src/constraints.dart b/packages/flutter_codec/lib/src/constraints.dart index f920bba0..82e07631 100644 --- a/packages/flutter_codec/lib/src/constraints.dart +++ b/packages/flutter_codec/lib/src/constraints.dart @@ -9,24 +9,39 @@ import 'package:flutter/rendering.dart' show BoxConstraints, Constraints; /// Omitted or null max bounds decode to `double.infinity`. final boxConstraintsCodec = Ack.object({ - 'minWidth': Ack.number().min(0).nullable().optional(), - 'maxWidth': Ack.number().min(0).nullable().optional(), - 'minHeight': Ack.number().min(0).nullable().optional(), - 'maxHeight': Ack.number().min(0).nullable().optional(), - }).codec( - decode: (data) => BoxConstraints( - minWidth: _readMinBound(data, 'minWidth'), - maxWidth: _readMaxBound(data, 'maxWidth'), - minHeight: _readMinBound(data, 'minHeight'), - maxHeight: _readMaxBound(data, 'maxHeight'), - ), - encode: (value) => { - 'minWidth': _encodeBound(value.minWidth), - 'maxWidth': _encodeBound(value.maxWidth), - 'minHeight': _encodeBound(value.minHeight), - 'maxHeight': _encodeBound(value.maxHeight), - }, - ); + 'minWidth': Ack.number().min(0).nullable().optional(), + 'maxWidth': Ack.number().min(0).nullable().optional(), + 'minHeight': Ack.number().min(0).nullable().optional(), + 'maxHeight': Ack.number().min(0).nullable().optional(), + }) + // Reject inverted bounds. The same null/infinity resolution the decoder + // uses is applied first, so this matches the BoxConstraints actually + // produced (and keeps the invariant in release builds, where Flutter's + // own `isNormalized` assert is stripped). + .refine( + (data) => + _readMinBound(data, 'minWidth') <= + _readMaxBound(data, 'maxWidth') && + _readMinBound(data, 'minHeight') <= + _readMaxBound(data, 'maxHeight'), + message: + 'BoxConstraints require minWidth <= maxWidth and ' + 'minHeight <= maxHeight.', + ) + .codec( + decode: (data) => BoxConstraints( + minWidth: _readMinBound(data, 'minWidth'), + maxWidth: _readMaxBound(data, 'maxWidth'), + minHeight: _readMinBound(data, 'minHeight'), + maxHeight: _readMaxBound(data, 'maxHeight'), + ), + encode: (value) => { + 'minWidth': _encodeBound(value.minWidth), + 'maxWidth': _encodeBound(value.maxWidth), + 'minHeight': _encodeBound(value.minHeight), + 'maxHeight': _encodeBound(value.maxHeight), + }, + ); /// Codec for Flutter [Constraints], discriminated by `"type"`. /// diff --git a/packages/flutter_codec/lib/src/decorations.dart b/packages/flutter_codec/lib/src/decorations.dart index 70c4a7fa..ecb8d28c 100644 --- a/packages/flutter_codec/lib/src/decorations.dart +++ b/packages/flutter_codec/lib/src/decorations.dart @@ -54,6 +54,14 @@ final boxDecorationCodec = message: 'BoxDecoration.backgroundBlendMode requires a color or gradient.', ) + // BoxDecoration asserts a circle has no borderRadius; enforce it here + // too so the rule holds in release builds. + .refine( + (data) => + data['shape'] != BoxShape.circle || data['borderRadius'] == null, + message: + 'BoxDecoration with shape BoxShape.circle cannot set borderRadius.', + ) .codec( decode: _decodeBoxDecoration, encode: _encodeBoxDecoration, diff --git a/packages/flutter_codec/lib/src/gradients.dart b/packages/flutter_codec/lib/src/gradients.dart index ef1827c0..9100baf5 100644 --- a/packages/flutter_codec/lib/src/gradients.dart +++ b/packages/flutter_codec/lib/src/gradients.dart @@ -30,6 +30,19 @@ void _requireEncodableTransform(GradientTransform? transform) { } } +// `stops`, when non-null, must align 1:1 with `colors`. Flutter only enforces +// this at paint time, so a mismatched-length gradient would otherwise encode to +// an invalid shape. Absent/null `stops` is valid (evenly distributed). +bool _stopsMatchColors(JsonMap data) { + final stops = data['stops']; + if (stops is! List) return true; + final colors = data['colors']; + return colors is List && stops.length == colors.length; +} + +const _stopsLengthMessage = + 'Gradient stops, when provided, must have the same length as colors.'; + /// Codec for [LinearGradient]. Tagged with `"type": "linear"`. /// /// `colors` is required and must contain at least two entries. `stops`, when @@ -38,32 +51,34 @@ void _requireEncodableTransform(GradientTransform? transform) { /// gradient transforms outside the codec layer. final linearGradientCodec = Ack.object({ - 'type': Ack.literal('linear'), - 'begin': alignmentGeometryCodec.withDefault(Alignment.centerLeft), - 'end': alignmentGeometryCodec.withDefault(Alignment.centerRight), - 'colors': Ack.list(colorCodec).minItems(2), - 'stops': Ack.list(Ack.number()).nullable().optional(), - 'tileMode': tileModeCodec.withDefault(TileMode.clamp), - }).codec( - decode: (data) => LinearGradient( - begin: readValue(data, 'begin'), - end: readValue(data, 'end'), - colors: readList(data, 'colors'), - stops: readNullableDoubleList(data, 'stops'), - tileMode: readValue(data, 'tileMode'), - ), - encode: (value) { - _requireEncodableTransform(value.transform); - return { - 'type': 'linear', - 'begin': value.begin, - 'end': value.end, - 'colors': value.colors, - 'stops': value.stops, - 'tileMode': value.tileMode, - }; - }, - ); + 'type': Ack.literal('linear'), + 'begin': alignmentGeometryCodec.withDefault(Alignment.centerLeft), + 'end': alignmentGeometryCodec.withDefault(Alignment.centerRight), + 'colors': Ack.list(colorCodec).minItems(2), + 'stops': Ack.list(Ack.number()).nullable().optional(), + 'tileMode': tileModeCodec.withDefault(TileMode.clamp), + }) + .refine(_stopsMatchColors, message: _stopsLengthMessage) + .codec( + decode: (data) => LinearGradient( + begin: readValue(data, 'begin'), + end: readValue(data, 'end'), + colors: readList(data, 'colors'), + stops: readNullableDoubleList(data, 'stops'), + tileMode: readValue(data, 'tileMode'), + ), + encode: (value) { + _requireEncodableTransform(value.transform); + return { + 'type': 'linear', + 'begin': value.begin, + 'end': value.end, + 'colors': value.colors, + 'stops': value.stops, + 'tileMode': value.tileMode, + }; + }, + ); /// Codec for [RadialGradient]. Tagged with `"type": "radial"`. /// @@ -72,38 +87,40 @@ final linearGradientCodec = /// `transform`. final radialGradientCodec = Ack.object({ - 'type': Ack.literal('radial'), - 'center': alignmentGeometryCodec.withDefault(Alignment.center), - 'radius': Ack.number().min(0).withDefault(0.5), - 'colors': Ack.list(colorCodec).minItems(2), - 'stops': Ack.list(Ack.number()).nullable().optional(), - 'tileMode': tileModeCodec.withDefault(TileMode.clamp), - 'focal': alignmentGeometryCodec.nullable().optional(), - 'focalRadius': Ack.number().min(0).withDefault(0.0), - }).codec( - decode: (data) => RadialGradient( - center: readValue(data, 'center'), - radius: readDouble(data, 'radius'), - colors: readList(data, 'colors'), - stops: readNullableDoubleList(data, 'stops'), - tileMode: readValue(data, 'tileMode'), - focal: readNullableValue(data, 'focal'), - focalRadius: readDouble(data, 'focalRadius'), - ), - encode: (value) { - _requireEncodableTransform(value.transform); - return { - 'type': 'radial', - 'center': value.center, - 'radius': value.radius, - 'colors': value.colors, - 'stops': value.stops, - 'tileMode': value.tileMode, - 'focal': value.focal, - 'focalRadius': value.focalRadius, - }; - }, - ); + 'type': Ack.literal('radial'), + 'center': alignmentGeometryCodec.withDefault(Alignment.center), + 'radius': Ack.number().min(0).withDefault(0.5), + 'colors': Ack.list(colorCodec).minItems(2), + 'stops': Ack.list(Ack.number()).nullable().optional(), + 'tileMode': tileModeCodec.withDefault(TileMode.clamp), + 'focal': alignmentGeometryCodec.nullable().optional(), + 'focalRadius': Ack.number().min(0).withDefault(0.0), + }) + .refine(_stopsMatchColors, message: _stopsLengthMessage) + .codec( + decode: (data) => RadialGradient( + center: readValue(data, 'center'), + radius: readDouble(data, 'radius'), + colors: readList(data, 'colors'), + stops: readNullableDoubleList(data, 'stops'), + tileMode: readValue(data, 'tileMode'), + focal: readNullableValue(data, 'focal'), + focalRadius: readDouble(data, 'focalRadius'), + ), + encode: (value) { + _requireEncodableTransform(value.transform); + return { + 'type': 'radial', + 'center': value.center, + 'radius': value.radius, + 'colors': value.colors, + 'stops': value.stops, + 'tileMode': value.tileMode, + 'focal': value.focal, + 'focalRadius': value.focalRadius, + }; + }, + ); /// Codec for [SweepGradient]. Tagged with `"type": "sweep"`. /// @@ -112,35 +129,37 @@ final radialGradientCodec = /// `transform`. final sweepGradientCodec = Ack.object({ - 'type': Ack.literal('sweep'), - 'center': alignmentGeometryCodec.withDefault(Alignment.center), - 'startAngle': Ack.number().withDefault(0.0), - 'endAngle': Ack.number().withDefault(math.pi * 2), - 'colors': Ack.list(colorCodec).minItems(2), - 'stops': Ack.list(Ack.number()).nullable().optional(), - 'tileMode': tileModeCodec.withDefault(TileMode.clamp), - }).codec( - decode: (data) => SweepGradient( - center: readValue(data, 'center'), - startAngle: readDouble(data, 'startAngle'), - endAngle: readDouble(data, 'endAngle'), - colors: readList(data, 'colors'), - stops: readNullableDoubleList(data, 'stops'), - tileMode: readValue(data, 'tileMode'), - ), - encode: (value) { - _requireEncodableTransform(value.transform); - return { - 'type': 'sweep', - 'center': value.center, - 'startAngle': value.startAngle, - 'endAngle': value.endAngle, - 'colors': value.colors, - 'stops': value.stops, - 'tileMode': value.tileMode, - }; - }, - ); + 'type': Ack.literal('sweep'), + 'center': alignmentGeometryCodec.withDefault(Alignment.center), + 'startAngle': Ack.number().withDefault(0.0), + 'endAngle': Ack.number().withDefault(math.pi * 2), + 'colors': Ack.list(colorCodec).minItems(2), + 'stops': Ack.list(Ack.number()).nullable().optional(), + 'tileMode': tileModeCodec.withDefault(TileMode.clamp), + }) + .refine(_stopsMatchColors, message: _stopsLengthMessage) + .codec( + decode: (data) => SweepGradient( + center: readValue(data, 'center'), + startAngle: readDouble(data, 'startAngle'), + endAngle: readDouble(data, 'endAngle'), + colors: readList(data, 'colors'), + stops: readNullableDoubleList(data, 'stops'), + tileMode: readValue(data, 'tileMode'), + ), + encode: (value) { + _requireEncodableTransform(value.transform); + return { + 'type': 'sweep', + 'center': value.center, + 'startAngle': value.startAngle, + 'endAngle': value.endAngle, + 'colors': value.colors, + 'stops': value.stops, + 'tileMode': value.tileMode, + }; + }, + ); /// Codec for [Gradient], discriminated by a `"type"` key (`"linear"`, /// `"radial"`, or `"sweep"`). Each branch is the corresponding concrete diff --git a/packages/flutter_codec/lib/src/primitives/alignment.dart b/packages/flutter_codec/lib/src/primitives/alignment.dart index fa68e185..ccd8d087 100644 --- a/packages/flutter_codec/lib/src/primitives/alignment.dart +++ b/packages/flutter_codec/lib/src/primitives/alignment.dart @@ -94,19 +94,63 @@ Object _encodeAlignmentDirectional(AlignmentDirectional value) { return {'start': value.start, 'y': value.y}; } -/// Codec for [AlignmentGeometry], unioning [alignmentCodec] and -/// [alignmentDirectionalCodec]. +/// Codec for [AlignmentGeometry]. /// -/// `{x, y}` and the regular names decode to [Alignment]; `{start, y}` and the -/// directional names decode to [AlignmentDirectional]. The shared center-column -/// names (`"center"`, `"topCenter"`, `"bottomCenter"`) decode to [Alignment], -/// since [alignmentCodec] is tried first. Mixed alignments (the result of -/// adding an [Alignment] to an [AlignmentDirectional]) are not supported. -final alignmentGeometryCodec = - Ack.anyOf([ - alignmentCodec, - alignmentDirectionalCodec, - ]).codec( - decode: (value) => value as AlignmentGeometry, - encode: (value) => value, - ); +/// Decoding: the regular names and `{x, y}` produce [Alignment]; the +/// directional names and `{start, y}` produce [AlignmentDirectional]. The +/// shared center-column names (`"center"`, `"topCenter"`, `"bottomCenter"`) +/// decode to [Alignment], since the [Alignment] forms are tried first. +/// +/// Encoding: an [Alignment] uses its name or `{x, y}`. An [AlignmentDirectional] +/// uses its name too, except the three center-column constants +/// ([AlignmentDirectional.topCenter], `.center`, `.bottomCenter`) whose names +/// collide with [Alignment] and would otherwise decode back as [Alignment]; +/// those are emitted as `{start, y}` so they round-trip as directional values. +/// (The standalone [alignmentDirectionalCodec] has no such collision and keeps +/// emitting names.) +/// +/// Mixed alignments (the result of adding an [Alignment] to an +/// [AlignmentDirectional]) are not supported. +final alignmentGeometryCodec = Ack.codec( + input: Ack.anyOf([ + Ack.enumCodec(_Alignment.values), + Ack.object({'x': Ack.number(), 'y': Ack.number()}), + Ack.enumCodec(_AlignmentDirectional.values), + Ack.object({'start': Ack.number(), 'y': Ack.number()}), + ]), + decode: _decodeAlignmentGeometry, + encode: _encodeAlignmentGeometry, +); + +AlignmentGeometry _decodeAlignmentGeometry(Object value) { + final isDirectional = + value is _AlignmentDirectional || + (value is JsonMap && value.containsKey('start')); + return isDirectional + ? _decodeAlignmentDirectional(value) + : _decodeAlignment(value); +} + +/// The center-column directional constants share a spelling with [Alignment] +/// names, so they must not be emitted as names through [alignmentGeometryCodec]. +/// (Not `const`: [AlignmentDirectional] overrides `==`.) +final _centerColumnDirectionals = { + AlignmentDirectional.topCenter, + AlignmentDirectional.center, + AlignmentDirectional.bottomCenter, +}; + +Object _encodeAlignmentGeometry(AlignmentGeometry value) { + if (value is Alignment) return _encodeAlignment(value); + if (value is AlignmentDirectional) { + // The center-column names would decode back as Alignment; emit the + // {start, y} object form for them so they stay directional. + return _centerColumnDirectionals.contains(value) + ? {'start': value.start, 'y': value.y} + : _encodeAlignmentDirectional(value); + } + throw UnsupportedError( + 'alignmentGeometryCodec cannot encode ${value.runtimeType}; only ' + 'Alignment and AlignmentDirectional are supported.', + ); +} diff --git a/packages/flutter_codec/lib/src/primitives/color.dart b/packages/flutter_codec/lib/src/primitives/color.dart index 9da52281..7a65bfd2 100644 --- a/packages/flutter_codec/lib/src/primitives/color.dart +++ b/packages/flutter_codec/lib/src/primitives/color.dart @@ -1,6 +1,28 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show Color; +// Matches a single 0–255 color channel. The decoder also range-checks, but the +// JSON Schema pattern must not admit channels (256+) the codec rejects. +const _rgbChannel = r'(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)'; + +final _rgbPattern = + r'^rgb\(\s*' + + _rgbChannel + + r'\s*,\s*' + + _rgbChannel + + r'\s*,\s*' + + _rgbChannel + + r'\s*\)$'; + +final _rgbaPattern = + r'^rgba\(\s*' + + _rgbChannel + + r'\s*,\s*' + + _rgbChannel + + r'\s*,\s*' + + _rgbChannel + + r'\s*,\s*(?:0|1|0?\.\d+|1\.0+)\s*\)$'; + /// Codec for [Color]. Accepts `#RRGGBB`, `#AARRGGBB`, `rgb(r,g,b)`, and /// `rgba(r,g,b,a)` strings; encodes to canonical hex (`#RRGGBB`, or `#AARRGGBB` /// when translucent). @@ -15,10 +37,8 @@ final colorCodec = Ack.codec( input: Ack.anyOf([ Ack.string().matches(r'^#[0-9A-Fa-f]{6}$'), Ack.string().matches(r'^#[0-9A-Fa-f]{8}$'), - Ack.string().matches(r'^rgb\(\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*\d{1,3}\s*\)$'), - Ack.string().matches( - r'^rgba\(\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*\d{1,3}\s*,\s*(?:0|1|0?\.\d+|1\.0+)\s*\)$', - ), + Ack.string().matches(_rgbPattern), + Ack.string().matches(_rgbaPattern), ]), decode: (value) => _parseColor(value as String), encode: _encodeColor, diff --git a/packages/flutter_codec/lib/src/primitives/font_variation.dart b/packages/flutter_codec/lib/src/primitives/font_variation.dart index 80185f9c..fe612bbf 100644 --- a/packages/flutter_codec/lib/src/primitives/font_variation.dart +++ b/packages/flutter_codec/lib/src/primitives/font_variation.dart @@ -12,8 +12,8 @@ const _axisPattern = r'^[\x20-\x7E]{4}$'; /// /// Serializes the public [FontVariation.axis] (a 4-character OpenType /// variation axis tag, e.g. `"wght"` or `"wdth"`) and [FontVariation.value] -/// (a [double]; the codec accepts any finite value, leaving the -/// [-32768, 32768) 16.16 fixed-point range check to the Flutter constructor). +/// (a [double] constrained to the `[-32768, 32768)` 16.16 fixed-point range +/// that the [FontVariation] constructor requires). /// /// Convenience constructors like [FontVariation.weight] are not preserved on /// round-trip because they all materialize as the same `(axis, value)` pair @@ -21,7 +21,7 @@ const _axisPattern = r'^[\x20-\x7E]{4}$'; final fontVariationCodec = Ack.object({ 'axis': Ack.string().matches(_axisPattern), - 'value': Ack.number(), + 'value': Ack.number().min(-32768).lessThan(32768), }).codec( decode: (data) => FontVariation( readValue(data, 'axis'), diff --git a/packages/flutter_codec/lib/src/text_style.dart b/packages/flutter_codec/lib/src/text_style.dart index f64c29bc..fceca238 100644 --- a/packages/flutter_codec/lib/src/text_style.dart +++ b/packages/flutter_codec/lib/src/text_style.dart @@ -41,9 +41,10 @@ import 'shadows.dart' show shadowCodec; /// [TextStyle.overflow], [TextStyle.fontFeatures], and /// [TextStyle.fontVariations]. /// -/// Unsupported fields are intentionally omitted: +/// Unsupported fields: /// * [TextStyle.foreground] and [TextStyle.background] are nullable [Paint] -/// values, which are not JSON-safe. +/// values, which are not JSON-safe. Encoding a [TextStyle] that sets either +/// throws [UnsupportedError] rather than dropping the paint silently. /// * [TextStyle.debugLabel] is debug metadata and is excluded from /// [TextStyle] equality. final textStyleCodec = Ack.object({ @@ -107,6 +108,24 @@ TextStyle _decodeTextStyle(JsonMap data) { } JsonMap _encodeTextStyle(TextStyle value) { + // [TextStyle.foreground]/[TextStyle.background] are [Paint]s with no portable + // JSON shape. They are mutually exclusive with color/backgroundColor, so a + // value that sets them carries paint state this codec cannot represent. + // Fail loudly instead of silently dropping it to a colorless style. + if (value.foreground != null) { + throw UnsupportedError( + 'TextStyle.foreground is a Paint with no portable JSON shape and cannot ' + 'be encoded. Use TextStyle.color, or apply the Paint outside the codec.', + ); + } + if (value.background != null) { + throw UnsupportedError( + 'TextStyle.background is a Paint with no portable JSON shape and cannot ' + 'be encoded. Use TextStyle.backgroundColor, or apply the Paint outside ' + 'the codec.', + ); + } + final fontFamilyFields = unpackFontFamily( value.fontFamily, value.fontFamilyFallback, diff --git a/packages/flutter_codec/lib/src/widgets/container.dart b/packages/flutter_codec/lib/src/widgets/container.dart index cabc5506..129ccc26 100644 --- a/packages/flutter_codec/lib/src/widgets/container.dart +++ b/packages/flutter_codec/lib/src/widgets/container.dart @@ -52,6 +52,16 @@ final CodecSchema containerWidgetCodec = data['decoration'] != null || data['clipBehavior'] == Clip.none, message: 'Container clipBehavior requires a decoration.', ) + // Reject negative insets: Flutter's Padding/margin handling asserts + // non-negative edges in debug, and the assert is stripped in release. + .refine((data) { + final padding = data['padding']; + return padding is! EdgeInsetsGeometry || padding.isNonNegative; + }, message: 'Container padding must not be negative.') + .refine((data) { + final margin = data['margin']; + return margin is! EdgeInsetsGeometry || margin.isNonNegative; + }, message: 'Container margin must not be negative.') .codec(decode: _decodeContainer, encode: _encodeContainer); Container _decodeContainer(JsonMap data) { diff --git a/packages/flutter_codec/lib/src/widgets/key.dart b/packages/flutter_codec/lib/src/widgets/key.dart index 5200cfc0..bb0d050a 100644 --- a/packages/flutter_codec/lib/src/widgets/key.dart +++ b/packages/flutter_codec/lib/src/widgets/key.dart @@ -9,9 +9,11 @@ enum _ValueKeyValueType { string, int, double, bool } /// Codec for portable [Key] values. /// -/// Only scalar [ValueKey] values are supported. Identity-based keys +/// Only the exact scalar [ValueKey] types are supported. Identity-based keys /// (`ObjectKey`, `UniqueKey`, and `GlobalKey` variants) cannot be serialized /// because their equality depends on object identity or Flutter runtime state. +/// [ValueKey] subclasses such as `PageStorageKey` are also rejected on encode: +/// re-encoding them as a plain [ValueKey] would silently drop the subclass. final keyCodec = Ack.discriminated( discriminatorKey: 'type', schemas: {_valueKeyType: _valueKeyCodec}, @@ -42,23 +44,40 @@ Key _decodeKey(JsonMap data) { } JsonMap _encodeKey(Key value) { - if (value is ValueKey) { - return _encodeValueKey(_ValueKeyValueType.string, value.value); + // Match the exact runtime type, not `is`: `ValueKey` subclasses such as + // `PageStorageKey` satisfy `is ValueKey` and would otherwise + // be silently re-encoded as a plain `ValueKey`, losing the subclass on + // decode. + final type = value.runtimeType; + if (type == ValueKey) { + return _encodeValueKey( + _ValueKeyValueType.string, + (value as ValueKey).value, + ); } - if (value is ValueKey) { - return _encodeValueKey(_ValueKeyValueType.int, value.value); + if (type == ValueKey) { + return _encodeValueKey( + _ValueKeyValueType.int, + (value as ValueKey).value, + ); } - if (value is ValueKey) { - return _encodeValueKey(_ValueKeyValueType.double, value.value); + if (type == ValueKey) { + return _encodeValueKey( + _ValueKeyValueType.double, + (value as ValueKey).value, + ); } - if (value is ValueKey) { - return _encodeValueKey(_ValueKeyValueType.bool, value.value); + if (type == ValueKey) { + return _encodeValueKey( + _ValueKeyValueType.bool, + (value as ValueKey).value, + ); } throw FormatException( - 'keyCodec can only encode ValueKey; ' - '${value.runtimeType} cannot be serialized because it is identity-based ' - 'or has no portable JSON shape.', + 'keyCodec can only encode exactly ValueKey; ' + '${value.runtimeType} cannot be serialized because it is identity-based, ' + 'a ValueKey subclass, or has no portable JSON shape.', ); } diff --git a/packages/flutter_codec/lib/src/widgets/text.dart b/packages/flutter_codec/lib/src/widgets/text.dart index ec263fd1..afc53158 100644 --- a/packages/flutter_codec/lib/src/widgets/text.dart +++ b/packages/flutter_codec/lib/src/widgets/text.dart @@ -30,9 +30,10 @@ import 'key.dart' show keyCodec; /// Codec for plain [Text]. /// /// [Text.rich] is intentionally excluded until inline span trees have their own -/// codec. `textScaler` is also excluded because Flutter exposes no stable -/// public state for its concrete implementations. The deprecated -/// `textScaleFactor` constructor parameter is not encoded. +/// codec. `textScaler` has no portable JSON shape (Flutter exposes no stable +/// public state for its concrete implementations); encoding a [Text] that sets +/// it throws [UnsupportedError] rather than dropping it silently. The +/// deprecated `textScaleFactor` constructor parameter is not encoded. final CodecSchema textWidgetCodec = Ack.object({ 'key': keyCodec.nullable().optional(), 'data': Ack.string(), @@ -75,6 +76,16 @@ Text _decodeText(JsonMap data) { } JsonMap _encodeText(Text value) { + // Flutter exposes no stable public state for a [TextScaler] implementation, + // so it has no portable JSON shape. Fail loudly when one is set instead of + // dropping it and decoding back an unscaled [Text]. + if (value.textScaler != null) { + throw UnsupportedError( + 'Text.textScaler has no portable JSON shape and cannot be encoded. ' + 'Resolve text scaling outside the codec, or omit textScaler.', + ); + } + return { 'key': value.key, 'data': value.data, diff --git a/packages/flutter_codec/test/constraints/constraints_test.dart b/packages/flutter_codec/test/constraints/constraints_test.dart index ef101583..70cb5df0 100644 --- a/packages/flutter_codec/test/constraints/constraints_test.dart +++ b/packages/flutter_codec/test/constraints/constraints_test.dart @@ -81,6 +81,45 @@ void main() { }); }); + group('boxConstraintsCodec rejects inverted bounds', () { + test('rejects minWidth greater than maxWidth on decode', () { + expect( + boxConstraintsCodec.safeParse({'minWidth': 100, 'maxWidth': 50}).isFail, + isTrue, + ); + }); + + test('rejects minHeight greater than maxHeight on decode', () { + expect( + boxConstraintsCodec.safeParse({ + 'minHeight': 100, + 'maxHeight': 50, + }).isFail, + isTrue, + ); + }); + + test('rejects an infinite min against a finite max (null min bound)', () { + // A null minWidth resolves to infinity, which exceeds a finite maxWidth. + expect( + boxConstraintsCodec.safeParse({ + 'minWidth': null, + 'maxWidth': 50, + }).isFail, + isTrue, + ); + }); + + test('fails to encode an inverted BoxConstraints', () { + expect( + boxConstraintsCodec + .safeEncode(const BoxConstraints(minWidth: 100, maxWidth: 50)) + .isFail, + isTrue, + ); + }); + }); + group('constraintsCodec', () { test('parses a box constraints branch', () { final parsed = constraintsCodec.parse({ diff --git a/packages/flutter_codec/test/decorations/decorations_test.dart b/packages/flutter_codec/test/decorations/decorations_test.dart index 515bc8cb..dc680c38 100644 --- a/packages/flutter_codec/test/decorations/decorations_test.dart +++ b/packages/flutter_codec/test/decorations/decorations_test.dart @@ -41,7 +41,7 @@ void main() { 'tileMode': 'mirror', }, 'backgroundBlendMode': 'multiply', - 'shape': 'circle', + 'shape': 'rectangle', }), BoxDecoration( color: const Color(0xFF2196F3), @@ -64,11 +64,23 @@ void main() { tileMode: TileMode.mirror, ), backgroundBlendMode: BlendMode.multiply, - shape: BoxShape.circle, + shape: BoxShape.rectangle, ), ); }); + test('rejects shape circle combined with a borderRadius', () { + // BoxDecoration.debugAssertIsValid forbids a borderRadius on a circle; + // enforce it at the codec boundary so it holds in release builds too. + expect( + boxDecorationCodec.safeParse({ + 'shape': 'circle', + 'borderRadius': 8, + }).isFail, + isTrue, + ); + }); + test('decodes partial inputs', () { expect( boxDecorationCodec.parse({'color': '#00FF00'}), diff --git a/packages/flutter_codec/test/gradients/gradients_test.dart b/packages/flutter_codec/test/gradients/gradients_test.dart index 4794dc64..f9bc31d5 100644 --- a/packages/flutter_codec/test/gradients/gradients_test.dart +++ b/packages/flutter_codec/test/gradients/gradients_test.dart @@ -295,4 +295,48 @@ void main() { expect(gradientCodec.safeEncode(gradient).isFail, isTrue); }); }); + + group('gradient rejects mismatched stops', () { + test('linearGradientCodec rejects fewer stops than colors on decode', () { + expect( + linearGradientCodec.safeParse({ + 'type': 'linear', + 'colors': _redBlueHex, + 'stops': [0.0], + }).isFail, + isTrue, + ); + }); + + test('radialGradientCodec rejects fewer stops than colors on decode', () { + expect( + radialGradientCodec.safeParse({ + 'type': 'radial', + 'colors': _redBlueHex, + 'stops': [0.0], + }).isFail, + isTrue, + ); + }); + + test('sweepGradientCodec rejects fewer stops than colors on decode', () { + expect( + sweepGradientCodec.safeParse({ + 'type': 'sweep', + 'colors': _redBlueHex, + 'stops': [0.0], + }).isFail, + isTrue, + ); + }); + + test('fails to encode a gradient with mismatched stops', () { + expect( + linearGradientCodec + .safeEncode(const LinearGradient(colors: _redBlue, stops: [0.0])) + .isFail, + isTrue, + ); + }); + }); } diff --git a/packages/flutter_codec/test/primitives/alignment_test.dart b/packages/flutter_codec/test/primitives/alignment_test.dart index 31a85de1..7aac9285 100644 --- a/packages/flutter_codec/test/primitives/alignment_test.dart +++ b/packages/flutter_codec/test/primitives/alignment_test.dart @@ -192,6 +192,27 @@ void main() { expectJsonSafe(encoded); }); + test('encodes center-column AlignmentDirectional as {start, y}', () { + // topCenter/center/bottomCenter share a spelling with Alignment names and + // would decode back as Alignment if emitted as names, so the union emits + // the object form to keep them directional on round-trip. + const directionals = [ + AlignmentDirectional.topCenter, + AlignmentDirectional.center, + AlignmentDirectional.bottomCenter, + ]; + + for (final value in directionals) { + final encoded = alignmentGeometryCodec.encode(value); + expect(encoded, {'start': value.start, 'y': value.y}); + expectJsonSafe(encoded); + + final parsed = alignmentGeometryCodec.parse(encoded); + expect(parsed, value); + expect(parsed, isA()); + } + }); + group('rejects invalid input', () { const invalidCases = { 'unknown name': 'middle', diff --git a/packages/flutter_codec/test/primitives/color_test.dart b/packages/flutter_codec/test/primitives/color_test.dart index fc399c20..cf56ccce 100644 --- a/packages/flutter_codec/test/primitives/color_test.dart +++ b/packages/flutter_codec/test/primitives/color_test.dart @@ -1,3 +1,4 @@ +import 'dart:convert'; import 'dart:ui'; import 'package:flutter_codec/flutter_codec.dart'; @@ -79,4 +80,14 @@ void main() { expect(roundTripped.colorSpace, ColorSpace.sRGB); }); }); + + group('colorCodec JSON Schema', () { + test('rgb/rgba channel patterns admit 0-255 only, not 256+', () { + final schema = jsonEncode(colorCodec.toJsonSchema()); + // The tightened 0-255 channel alternation replaces the loose `\d{1,3}` + // so the generated schema does not admit out-of-range channels. + expect(schema, contains('25[0-5]')); + expect(schema, isNot(contains(r'\\d{1,3}'))); + }); + }); } diff --git a/packages/flutter_codec/test/primitives/font_variation_test.dart b/packages/flutter_codec/test/primitives/font_variation_test.dart index 640513a4..83a06945 100644 --- a/packages/flutter_codec/test/primitives/font_variation_test.dart +++ b/packages/flutter_codec/test/primitives/font_variation_test.dart @@ -71,6 +71,36 @@ void main() { }); }); + group('fontVariationCodec value range', () { + test('accepts the inclusive lower bound -32768', () { + expect( + fontVariationCodec.parse({'axis': 'wght', 'value': -32768}), + const FontVariation('wght', -32768), + ); + }); + + test('accepts a value just below the exclusive upper bound', () { + expect( + fontVariationCodec.parse({'axis': 'wght', 'value': 32767}), + const FontVariation('wght', 32767), + ); + }); + + test('rejects a value below -32768', () { + expect( + fontVariationCodec.safeParse({'axis': 'wght', 'value': -32769}).isFail, + isTrue, + ); + }); + + test('rejects the exclusive upper bound 32768', () { + expect( + fontVariationCodec.safeParse({'axis': 'wght', 'value': 32768}).isFail, + isTrue, + ); + }); + }); + group('fontVariationCodec JSON Schema', () { test('reflects the 4-character pattern on axis', () { final schema = jsonEncode(fontVariationCodec.toJsonSchema()); diff --git a/packages/flutter_codec/test/text_style/text_style_test.dart b/packages/flutter_codec/test/text_style/text_style_test.dart index a9f3c552..cdf8fd17 100644 --- a/packages/flutter_codec/test/text_style/text_style_test.dart +++ b/packages/flutter_codec/test/text_style/text_style_test.dart @@ -1,5 +1,5 @@ import 'dart:convert'; -import 'dart:ui' as ui show Locale, Shadow; +import 'dart:ui' as ui show Locale, Paint, Shadow; import 'package:flutter/painting.dart'; import 'package:flutter_codec/flutter_codec.dart'; @@ -210,6 +210,24 @@ void main() { }); }); + group('textStyleCodec rejects unsupported paint fields on encode', () { + test('fails to encode a foreground Paint', () { + // foreground is a Paint with no JSON shape; it must fail loudly rather + // than drop to a colorless style. + final result = textStyleCodec.safeEncode( + TextStyle(foreground: ui.Paint()), + ); + expect(result.isFail, isTrue); + }); + + test('fails to encode a background Paint', () { + final result = textStyleCodec.safeEncode( + TextStyle(background: ui.Paint()), + ); + expect(result.isFail, isTrue); + }); + }); + group('textStyleCodec JSON Schema', () { test('dependent codec enums flow through composition', () { final schema = jsonEncode(textStyleCodec.toJsonSchema()); diff --git a/packages/flutter_codec/test/widgets/container_test.dart b/packages/flutter_codec/test/widgets/container_test.dart index 75e28efa..0fdbe467 100644 --- a/packages/flutter_codec/test/widgets/container_test.dart +++ b/packages/flutter_codec/test/widgets/container_test.dart @@ -182,6 +182,18 @@ void main() { isTrue, ); }); + + // Negative insets are exercised on the decode path: the Container + // constructor itself asserts non-negative padding/margin, so a negative + // value can only reach the codec as untrusted JSON. A bare number sets all + // four EdgeInsets sides. + test('rejects negative padding on decode', () { + expect(containerWidgetCodec.safeParse({'padding': -4}).isFail, isTrue); + }); + + test('rejects negative margin on decode', () { + expect(containerWidgetCodec.safeParse({'margin': -4}).isFail, isTrue); + }); }); group('widgetCodec', () { diff --git a/packages/flutter_codec/test/widgets/key_test.dart b/packages/flutter_codec/test/widgets/key_test.dart index d35247e9..a469a673 100644 --- a/packages/flutter_codec/test/widgets/key_test.dart +++ b/packages/flutter_codec/test/widgets/key_test.dart @@ -70,6 +70,15 @@ void main() { } }); + test('rejects ValueKey subclasses such as PageStorageKey on encode', () { + // PageStorageKey is a ValueKey subclass; encoding it as a + // plain ValueKey would silently drop the subclass on decode. + _expectEncodeFailureContains( + const PageStorageKey('x'), + 'PageStorageKey', + ); + }); + test('rejects invalid value-key payloads', () { final invalidCases = { 'unknown valueType': { diff --git a/packages/flutter_codec/test/widgets/text_test.dart b/packages/flutter_codec/test/widgets/text_test.dart index dbb32a01..64a05009 100644 --- a/packages/flutter_codec/test/widgets/text_test.dart +++ b/packages/flutter_codec/test/widgets/text_test.dart @@ -89,14 +89,14 @@ void main() { expectJsonSafe(encoded); }); - test('does not encode opaque textScaler state', () { - final encoded = textWidgetCodec.encode( + test('fails to encode opaque textScaler state', () { + // textScaler has no portable JSON shape, so encoding a Text that sets it + // fails loudly instead of silently dropping the scaler. + final result = textWidgetCodec.safeEncode( Text('scaled', textScaler: TextScaler.linear(1.5)), ); - expect(encoded!.containsKey('textScaler'), isFalse); - expect(textWidgetCodec.parse(encoded)!.textScaler, isNull); - expectJsonSafe(encoded); + expect(result.isFail, isTrue); }); }); From c11883c51f414c2dd9c62cf0b799fe10441a2845 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Sun, 5 Jul 2026 10:27:30 -0400 Subject: [PATCH 47/53] Harden flutter_codec validation --- packages/flutter_codec/CHANGELOG.md | 10 +++ packages/flutter_codec/lib/src/gradients.dart | 32 +++++-- .../lib/src/primitives/edge_insets.dart | 5 ++ .../flutter_codec/lib/src/shape_borders.dart | 78 +++++++++-------- .../flutter_codec/lib/src/text_style.dart | 2 +- .../lib/src/widgets/container.dart | 5 ++ packages/flutter_codec/pubspec.yaml | 4 +- .../test/gradients/gradients_test.dart | 83 ++++++++++++++++++- .../shape_borders/shape_borders_test.dart | 21 +++++ .../test/text_style/text_style_test.dart | 2 + .../test/widgets/container_test.dart | 25 ++++++ 11 files changed, 224 insertions(+), 43 deletions(-) diff --git a/packages/flutter_codec/CHANGELOG.md b/packages/flutter_codec/CHANGELOG.md index 07f6ea73..f4ecc5b0 100644 --- a/packages/flutter_codec/CHANGELOG.md +++ b/packages/flutter_codec/CHANGELOG.md @@ -1,5 +1,15 @@ # Changelog +## 0.1.1 + +- Harden codec-boundary validation for Flutter values that only assert in + debug/release-unsafe code paths: recursive `Container.child` nesting is + capped, `StarBorder` rejects point/valley rounding sums above `1`, gradient + stops must be within `[0, 1]` and ascending, and `TextStyle.fontSize` must be + positive. +- Document that the `EdgeInsets` primitive intentionally remains permissive; + widget codecs enforce non-negative inset rules where Flutter asserts them. + ## 0.1.0 Initial release. JSON value codecs for Flutter's painting and rendering layers, diff --git a/packages/flutter_codec/lib/src/gradients.dart b/packages/flutter_codec/lib/src/gradients.dart index 9100baf5..c70c7518 100644 --- a/packages/flutter_codec/lib/src/gradients.dart +++ b/packages/flutter_codec/lib/src/gradients.dart @@ -40,25 +40,43 @@ bool _stopsMatchColors(JsonMap data) { return colors is List && stops.length == colors.length; } +bool _stopsAscending(JsonMap data) { + final stops = data['stops']; + if (stops is! List) return true; + for (var index = 0; index < stops.length - 1; index++) { + final current = stops[index]; + final next = stops[index + 1]; + if (current is! num || next is! num) return true; + if (current > next) return false; + } + return true; +} + const _stopsLengthMessage = 'Gradient stops, when provided, must have the same length as colors.'; +const _stopsAscendingMessage = 'Gradient stops must be in ascending order.'; + +final _gradientStopsSchema = Ack.list( + Ack.number().min(0).max(1), +).nullable().optional(); /// Codec for [LinearGradient]. Tagged with `"type": "linear"`. /// /// `colors` is required and must contain at least two entries. `stops`, when -/// non-null, should have the same length as `colors` (enforced by Flutter at -/// paint time, not by the schema). `transform` is not supported — apply -/// gradient transforms outside the codec layer. +/// non-null, must have the same length as `colors`, be ordered ascending, and +/// stay within `[0, 1]`. `transform` is not supported — apply gradient +/// transforms outside the codec layer. final linearGradientCodec = Ack.object({ 'type': Ack.literal('linear'), 'begin': alignmentGeometryCodec.withDefault(Alignment.centerLeft), 'end': alignmentGeometryCodec.withDefault(Alignment.centerRight), 'colors': Ack.list(colorCodec).minItems(2), - 'stops': Ack.list(Ack.number()).nullable().optional(), + 'stops': _gradientStopsSchema, 'tileMode': tileModeCodec.withDefault(TileMode.clamp), }) .refine(_stopsMatchColors, message: _stopsLengthMessage) + .refine(_stopsAscending, message: _stopsAscendingMessage) .codec( decode: (data) => LinearGradient( begin: readValue(data, 'begin'), @@ -91,12 +109,13 @@ final radialGradientCodec = 'center': alignmentGeometryCodec.withDefault(Alignment.center), 'radius': Ack.number().min(0).withDefault(0.5), 'colors': Ack.list(colorCodec).minItems(2), - 'stops': Ack.list(Ack.number()).nullable().optional(), + 'stops': _gradientStopsSchema, 'tileMode': tileModeCodec.withDefault(TileMode.clamp), 'focal': alignmentGeometryCodec.nullable().optional(), 'focalRadius': Ack.number().min(0).withDefault(0.0), }) .refine(_stopsMatchColors, message: _stopsLengthMessage) + .refine(_stopsAscending, message: _stopsAscendingMessage) .codec( decode: (data) => RadialGradient( center: readValue(data, 'center'), @@ -134,10 +153,11 @@ final sweepGradientCodec = 'startAngle': Ack.number().withDefault(0.0), 'endAngle': Ack.number().withDefault(math.pi * 2), 'colors': Ack.list(colorCodec).minItems(2), - 'stops': Ack.list(Ack.number()).nullable().optional(), + 'stops': _gradientStopsSchema, 'tileMode': tileModeCodec.withDefault(TileMode.clamp), }) .refine(_stopsMatchColors, message: _stopsLengthMessage) + .refine(_stopsAscending, message: _stopsAscendingMessage) .codec( decode: (data) => SweepGradient( center: readValue(data, 'center'), diff --git a/packages/flutter_codec/lib/src/primitives/edge_insets.dart b/packages/flutter_codec/lib/src/primitives/edge_insets.dart index 2070647e..3d3fc07e 100644 --- a/packages/flutter_codec/lib/src/primitives/edge_insets.dart +++ b/packages/flutter_codec/lib/src/primitives/edge_insets.dart @@ -8,6 +8,11 @@ import '../json_readers.dart'; /// `{"left": ..., "top": ..., "right": ..., "bottom": ...}` (each side optional, /// defaulting to `0`) sets them individually. Encoding emits a scalar when all /// sides are equal, otherwise the full object. +/// +/// This primitive intentionally allows negative values to match Flutter's +/// [EdgeInsets]. Widget codecs that assert non-negative insets, such as +/// [Container], enforce that constraint at the widget boundary. Direct consumers +/// that need non-negative insets should add their own refinement. final edgeInsetsCodec = Ack.codec( input: Ack.anyOf([ Ack.number(), diff --git a/packages/flutter_codec/lib/src/shape_borders.dart b/packages/flutter_codec/lib/src/shape_borders.dart index ed46d5c0..829a6231 100644 --- a/packages/flutter_codec/lib/src/shape_borders.dart +++ b/packages/flutter_codec/lib/src/shape_borders.dart @@ -126,7 +126,7 @@ final continuousRectangleBorderCodec = _rectangleBorderSchema /// Shares the `{side, borderRadius}` shape with the other corner-rounded /// rectangle border codecs ([roundedRectangleBorderCodec], /// [beveledRectangleBorderCodec], [continuousRectangleBorderCodec]); only the -/// runtime [ShapeBorder] subtype differs. Requires Flutter 3.27 or later. +/// runtime [ShapeBorder] subtype differs. Requires Flutter 3.32 or later. /// The `"type"` discriminator is added by [shapeBorderCodec] when this codec /// is used as one of its branches. final roundedSuperellipseBorderCodec = _rectangleBorderSchema @@ -141,6 +141,12 @@ final roundedSuperellipseBorderCodec = _rectangleBorderSchema }, ); +bool _starRoundingSumValid(JsonMap data) { + final pointRounding = data['pointRounding'] as num; + final valleyRounding = data['valleyRounding'] as num; + return pointRounding + valleyRounding <= 1; +} + /// Codec for [StarBorder]. /// /// Composes [borderSideCodec] for [StarBorder.side] (default @@ -155,10 +161,10 @@ final roundedSuperellipseBorderCodec = _rectangleBorderSchema /// shorter point or corner to finish the shape, enabling smooth /// animation between point counts. /// -/// The constructor also asserts `pointRounding + valleyRounding <= 1`; -/// that cross-field constraint is left to the constructor rather than -/// re-enforced here. The `"type"` discriminator is added by -/// [shapeBorderCodec] when this codec is used as one of its branches. +/// The codec also enforces the constructor's +/// `pointRounding + valleyRounding <= 1` invariant so validation holds in +/// release builds too. The `"type"` discriminator is added by [shapeBorderCodec] +/// when this codec is used as one of its branches. /// /// `StarBorder.polygon` round-trips through the regular `StarBorder` /// constructor: encoding reads the computed `innerRadiusRatio` and @@ -172,33 +178,39 @@ final roundedSuperellipseBorderCodec = _rectangleBorderSchema /// painted-equivalent but not `==`-equal after a round-trip. final starBorderCodec = Ack.object({ - 'side': borderSideCodec.withDefault(BorderSide.none), - 'points': Ack.number().min(2).withDefault(5), - 'innerRadiusRatio': Ack.number().min(0).max(1).withDefault(0.4), - 'pointRounding': Ack.number().min(0).max(1).withDefault(0.0), - 'valleyRounding': Ack.number().min(0).max(1).withDefault(0.0), - 'rotation': Ack.number().withDefault(0.0), - 'squash': Ack.number().min(0).max(1).withDefault(0.0), - }).codec( - decode: (data) => StarBorder( - side: readValue(data, 'side'), - points: readDouble(data, 'points'), - innerRadiusRatio: readDouble(data, 'innerRadiusRatio'), - pointRounding: readDouble(data, 'pointRounding'), - valleyRounding: readDouble(data, 'valleyRounding'), - rotation: readDouble(data, 'rotation'), - squash: readDouble(data, 'squash'), - ), - encode: (value) => { - 'side': value.side, - 'points': value.points, - 'innerRadiusRatio': value.innerRadiusRatio, - 'pointRounding': value.pointRounding, - 'valleyRounding': value.valleyRounding, - 'rotation': value.rotation, - 'squash': value.squash, - }, - ); + 'side': borderSideCodec.withDefault(BorderSide.none), + 'points': Ack.number().min(2).withDefault(5), + 'innerRadiusRatio': Ack.number().min(0).max(1).withDefault(0.4), + 'pointRounding': Ack.number().min(0).max(1).withDefault(0.0), + 'valleyRounding': Ack.number().min(0).max(1).withDefault(0.0), + 'rotation': Ack.number().withDefault(0.0), + 'squash': Ack.number().min(0).max(1).withDefault(0.0), + }) + .refine( + _starRoundingSumValid, + message: + 'StarBorder pointRounding + valleyRounding must not exceed 1.', + ) + .codec( + decode: (data) => StarBorder( + side: readValue(data, 'side'), + points: readDouble(data, 'points'), + innerRadiusRatio: readDouble(data, 'innerRadiusRatio'), + pointRounding: readDouble(data, 'pointRounding'), + valleyRounding: readDouble(data, 'valleyRounding'), + rotation: readDouble(data, 'rotation'), + squash: readDouble(data, 'squash'), + ), + encode: (value) => { + 'side': value.side, + 'points': value.points, + 'innerRadiusRatio': value.innerRadiusRatio, + 'pointRounding': value.pointRounding, + 'valleyRounding': value.valleyRounding, + 'rotation': value.rotation, + 'squash': value.squash, + }, + ); /// Codec for [LinearBorderEdge]. /// @@ -263,7 +275,7 @@ final linearBorderCodec = /// * `"roundedRectangle"` → [RoundedRectangleBorder] /// * `"beveledRectangle"` → [BeveledRectangleBorder] /// * `"continuousRectangle"` → [ContinuousRectangleBorder] -/// * `"roundedSuperellipse"` → [RoundedSuperellipseBorder] (Flutter 3.27+) +/// * `"roundedSuperellipse"` → [RoundedSuperellipseBorder] (Flutter 3.32+) /// * `"star"` → [StarBorder] /// * `"linear"` → [LinearBorder] /// diff --git a/packages/flutter_codec/lib/src/text_style.dart b/packages/flutter_codec/lib/src/text_style.dart index fceca238..96c009e1 100644 --- a/packages/flutter_codec/lib/src/text_style.dart +++ b/packages/flutter_codec/lib/src/text_style.dart @@ -51,7 +51,7 @@ final textStyleCodec = Ack.object({ 'inherit': Ack.boolean().withDefault(true), 'color': colorCodec.nullable().optional(), 'backgroundColor': colorCodec.nullable().optional(), - 'fontSize': Ack.number().nullable().optional(), + 'fontSize': Ack.number().positive().nullable().optional(), 'fontWeight': fontWeightCodec.nullable().optional(), 'fontStyle': fontStyleCodec.nullable().optional(), 'letterSpacing': Ack.number().nullable().optional(), diff --git a/packages/flutter_codec/lib/src/widgets/container.dart b/packages/flutter_codec/lib/src/widgets/container.dart index 129ccc26..bcd73a3c 100644 --- a/packages/flutter_codec/lib/src/widgets/container.dart +++ b/packages/flutter_codec/lib/src/widgets/container.dart @@ -15,6 +15,10 @@ import '../primitives/matrix4.dart' show matrix4Codec; import 'key.dart' show keyCodec; import 'widget.dart' show widgetCodec; +/// Maximum supported depth for recursive [Container.child] widget decoding and +/// encoding. +const int containerWidgetMaxDepth = 64; + /// Codec for [Container]. /// /// `width` and `height` are accepted on decode because they are constructor @@ -39,6 +43,7 @@ final CodecSchema containerWidgetCodec = 'child': Ack.lazy( 'widgetCodec', () => widgetCodec, + maxDepth: containerWidgetMaxDepth, ).nullable().optional(), }) // Enforce the constructor's cross-field invariants here so validation holds diff --git a/packages/flutter_codec/pubspec.yaml b/packages/flutter_codec/pubspec.yaml index f42d722f..d1c85f0d 100644 --- a/packages/flutter_codec/pubspec.yaml +++ b/packages/flutter_codec/pubspec.yaml @@ -1,6 +1,6 @@ name: flutter_codec description: Flutter value codecs built on ACK schemas. -version: 0.1.0 +version: 0.1.1 repository: https://github.com/btwld/ack issue_tracker: https://github.com/btwld/ack/issues resolution: workspace @@ -12,7 +12,7 @@ environment: flutter: '>=3.32.0' dependencies: - ack: ^1.0.0-beta.12-wip + ack: ^1.0.1 flutter: sdk: flutter diff --git a/packages/flutter_codec/test/gradients/gradients_test.dart b/packages/flutter_codec/test/gradients/gradients_test.dart index f9bc31d5..58f4c1c0 100644 --- a/packages/flutter_codec/test/gradients/gradients_test.dart +++ b/packages/flutter_codec/test/gradients/gradients_test.dart @@ -296,7 +296,7 @@ void main() { }); }); - group('gradient rejects mismatched stops', () { + group('gradient rejects invalid stops', () { test('linearGradientCodec rejects fewer stops than colors on decode', () { expect( linearGradientCodec.safeParse({ @@ -330,6 +330,87 @@ void main() { ); }); + test('rejects stops outside [0, 1] on decode', () { + expect( + linearGradientCodec.safeParse({ + 'type': 'linear', + 'colors': _redBlueHex, + 'stops': [-1, 2], + }).isFail, + isTrue, + ); + expect( + radialGradientCodec.safeParse({ + 'type': 'radial', + 'colors': _redBlueHex, + 'stops': [-1, 2], + }).isFail, + isTrue, + ); + expect( + sweepGradientCodec.safeParse({ + 'type': 'sweep', + 'colors': _redBlueHex, + 'stops': [-1, 2], + }).isFail, + isTrue, + ); + }); + + test('rejects descending stops on decode', () { + expect( + linearGradientCodec.safeParse({ + 'type': 'linear', + 'colors': _redBlueHex, + 'stops': [1.0, 0.0], + }).isFail, + isTrue, + ); + expect( + radialGradientCodec.safeParse({ + 'type': 'radial', + 'colors': _redBlueHex, + 'stops': [1.0, 0.0], + }).isFail, + isTrue, + ); + expect( + sweepGradientCodec.safeParse({ + 'type': 'sweep', + 'colors': _redBlueHex, + 'stops': [1.0, 0.0], + }).isFail, + isTrue, + ); + }); + + test('accepts ascending stops at the bounds', () { + expect( + linearGradientCodec.safeParse({ + 'type': 'linear', + 'colors': _redBlueHex, + 'stops': [0.0, 1.0], + }).isOk, + isTrue, + ); + expect( + radialGradientCodec.safeParse({ + 'type': 'radial', + 'colors': _redBlueHex, + 'stops': [0.0, 1.0], + }).isOk, + isTrue, + ); + expect( + sweepGradientCodec.safeParse({ + 'type': 'sweep', + 'colors': _redBlueHex, + 'stops': [0.0, 1.0], + }).isOk, + isTrue, + ); + }); + test('fails to encode a gradient with mismatched stops', () { expect( linearGradientCodec diff --git a/packages/flutter_codec/test/shape_borders/shape_borders_test.dart b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart index 04fb109f..c84ccb89 100644 --- a/packages/flutter_codec/test/shape_borders/shape_borders_test.dart +++ b/packages/flutter_codec/test/shape_borders/shape_borders_test.dart @@ -204,6 +204,27 @@ void main() { isTrue, ); }); + + test('rejects point and valley rounding sums above one', () { + expect( + starBorderCodec.safeParse({ + 'pointRounding': 0.7, + 'valleyRounding': 0.6, + }).isFail, + isTrue, + ); + }); + + test('accepts point and valley rounding sum at one', () { + final parsed = starBorderCodec.parse({ + 'pointRounding': 0.5, + 'valleyRounding': 0.5, + })!; + + expect(parsed.pointRounding, 0.5); + expect(parsed.valleyRounding, 0.5); + expect(starBorderCodec.parse(starBorderCodec.encode(parsed)), parsed); + }); }); group('linearBorderEdgeCodec', () { diff --git a/packages/flutter_codec/test/text_style/text_style_test.dart b/packages/flutter_codec/test/text_style/text_style_test.dart index cdf8fd17..0b0018ea 100644 --- a/packages/flutter_codec/test/text_style/text_style_test.dart +++ b/packages/flutter_codec/test/text_style/text_style_test.dart @@ -201,6 +201,8 @@ void main() { 'invalid fontWeight': {'fontWeight': 'heavy'}, 'invalid decoration': {'decoration': 'blink'}, 'invalid color': {'color': 'not-a-color'}, + 'zero fontSize': {'fontSize': 0}, + 'negative fontSize': {'fontSize': -1}, }; invalidCases.forEach((name, input) { diff --git a/packages/flutter_codec/test/widgets/container_test.dart b/packages/flutter_codec/test/widgets/container_test.dart index 0fdbe467..1928d24d 100644 --- a/packages/flutter_codec/test/widgets/container_test.dart +++ b/packages/flutter_codec/test/widgets/container_test.dart @@ -194,6 +194,23 @@ void main() { test('rejects negative margin on decode', () { expect(containerWidgetCodec.safeParse({'margin': -4}).isFail, isTrue); }); + + test('rejects child nesting beyond the widget recursion cap', () { + // Deep widget nesting can only arrive as untrusted JSON. The codec should + // return a bounded failure instead of recursing to the Dart stack limit. + expect( + containerWidgetCodec + .safeParse(_nestedContainerJson(containerWidgetMaxDepth)) + .isOk, + isTrue, + ); + expect( + containerWidgetCodec + .safeParse(_nestedContainerJson(containerWidgetMaxDepth + 1)) + .isFail, + isTrue, + ); + }); }); group('widgetCodec', () { @@ -217,3 +234,11 @@ void main() { }); }); } + +Map _nestedContainerJson(int childDepth) { + Map? child; + for (var depth = childDepth; depth > 0; depth--) { + child = {'type': 'container', if (child != null) 'child': child}; + } + return {if (child != null) 'child': child}; +} From 88f1d1a45e0d45ebc4ba2ef154cd60758d242e7b Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Sun, 5 Jul 2026 14:35:03 -0400 Subject: [PATCH 48/53] Prepare flutter_codec for publish Adds the missing LICENSE, fixes fontFamily encoding a literal "null" string instead of JSON null, inherits the shared workspace lint config, and rounds out test coverage for gradient stop ordering and mixed geometry encode-rejection. --- packages/flutter_codec/LICENSE | 29 ++++++++++++++++++ packages/flutter_codec/analysis_options.yaml | 6 ++-- .../lib/src/font_family_packing.dart | 30 ++++++++++++++----- packages/flutter_codec/pubspec.yaml | 3 +- .../test/gradients/gradients_test.dart | 29 ++++++++++++++++++ .../test/primitives/alignment_test.dart | 8 +++++ .../test/primitives/border_radius_test.dart | 10 +++++++ .../test/text_style/text_style_test.dart | 12 ++++++++ 8 files changed, 116 insertions(+), 11 deletions(-) create mode 100644 packages/flutter_codec/LICENSE diff --git a/packages/flutter_codec/LICENSE b/packages/flutter_codec/LICENSE new file mode 100644 index 00000000..c936b029 --- /dev/null +++ b/packages/flutter_codec/LICENSE @@ -0,0 +1,29 @@ +BSD 3-Clause License + +Copyright (c) 2025, Leo Farias +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. \ No newline at end of file diff --git a/packages/flutter_codec/analysis_options.yaml b/packages/flutter_codec/analysis_options.yaml index e147228d..f9c2b979 100644 --- a/packages/flutter_codec/analysis_options.yaml +++ b/packages/flutter_codec/analysis_options.yaml @@ -1,8 +1,8 @@ -include: package:lints/recommended.yaml +# Inherits the shared workspace config (lints + DCM presets/rules). +# See /analysis_options.yaml at the workspace root. +include: ../../analysis_options.yaml analyzer: - exclude: - - "**/*.g.dart" language: strict-casts: true strict-inference: true diff --git a/packages/flutter_codec/lib/src/font_family_packing.dart b/packages/flutter_codec/lib/src/font_family_packing.dart index 58ecf6ab..cc7f408a 100644 --- a/packages/flutter_codec/lib/src/font_family_packing.dart +++ b/packages/flutter_codec/lib/src/font_family_packing.dart @@ -13,11 +13,19 @@ /// families share the same prefix. Falls back to the stored (prefixed) form /// when the prefix is missing or inconsistent. /// -/// A package is only recovered when the primary [family] is non-null. With a -/// null family the constructor would re-fold `package` into the literal string -/// `'packages//null'` (it interpolates the null family), corrupting the -/// round-trip; keeping the fallback verbatim with `package: null` reproduces -/// the original exactly because decode then performs no folding. +/// The primary [family] drives package recovery: +/// * A Dart `null` primary family (e.g. only a package-prefixed fallback was +/// supplied) recovers no package. Re-folding a recovered `package` into a +/// null family would yield the literal string `'packages//null'` (the +/// constructor interpolates the null family), corrupting the round-trip; +/// keeping the fallback verbatim with `package: null` reproduces the +/// original exactly because decode then performs no folding. +/// * A primary family that is already that folded-null *string* +/// `'packages//null'` — the shape Flutter stores for +/// `TextStyle(package: )` with no `fontFamily` — is recovered as a +/// genuine `null` primary family plus `package: `. Emitting the +/// four-char string `'null'` instead would round-trip through this library +/// but be wrong JSON for any other consumer. /// /// Note: a literal `fontFamily: 'packages//'` supplied without a /// `package:` argument is indistinguishable from the folded @@ -25,7 +33,9 @@ /// private and is compared by `TextStyle` equality). It is intentionally /// interpreted as package-qualified — the common case — so such a literal /// does not round-trip under `TextStyle` equality, though the resolved font -/// family string is preserved. +/// family string is preserved. This includes the ` == 'null'` sentinel: a +/// literal `'packages//null'` is read as `package: ` with a null +/// family, the same documented tradeoff. ({String? family, List? fallback, String? packageName}) unpackFontFamily(String? family, List? fallback) { final pkg = _sharedPackagePrefix([if (family != null) family, ...?fallback]); @@ -36,8 +46,14 @@ unpackFontFamily(String? family, List? fallback) { final prefix = 'packages/$pkg/'; String strip(String f) => f.startsWith(prefix) ? f.substring(prefix.length) : f; + + // Flutter folds a null fontFamily with a package into the literal + // 'packages//null' (it interpolates the null family). Recover that as a + // genuine null primary family instead of the four-char string 'null'. + final resolvedFamily = family == '${prefix}null' ? null : strip(family); + return ( - family: strip(family), + family: resolvedFamily, fallback: fallback?.map(strip).toList(), packageName: pkg, ); diff --git a/packages/flutter_codec/pubspec.yaml b/packages/flutter_codec/pubspec.yaml index d1c85f0d..ad68b31a 100644 --- a/packages/flutter_codec/pubspec.yaml +++ b/packages/flutter_codec/pubspec.yaml @@ -1,7 +1,8 @@ name: flutter_codec -description: Flutter value codecs built on ACK schemas. +description: JSON codecs for Flutter painting and rendering value types (Color, Gradient, TextStyle, ShapeBorder, EdgeInsets, and more), built on ACK schemas. version: 0.1.1 repository: https://github.com/btwld/ack +homepage: https://github.com/btwld/ack/tree/main/packages/flutter_codec issue_tracker: https://github.com/btwld/ack/issues resolution: workspace diff --git a/packages/flutter_codec/test/gradients/gradients_test.dart b/packages/flutter_codec/test/gradients/gradients_test.dart index 58f4c1c0..a2fb4bef 100644 --- a/packages/flutter_codec/test/gradients/gradients_test.dart +++ b/packages/flutter_codec/test/gradients/gradients_test.dart @@ -419,5 +419,34 @@ void main() { isTrue, ); }); + + test('fails to encode descending stops', () { + // The ascending-order invariant is enforced on encode too, not only on + // decode: an in-range but out-of-order [1.0, 0.0] must be rejected. + expect( + linearGradientCodec + .safeEncode( + const LinearGradient(colors: _redBlue, stops: [1.0, 0.0]), + ) + .isFail, + isTrue, + ); + expect( + radialGradientCodec + .safeEncode( + const RadialGradient(colors: _redBlue, stops: [1.0, 0.0]), + ) + .isFail, + isTrue, + ); + expect( + sweepGradientCodec + .safeEncode( + const SweepGradient(colors: _redBlue, stops: [1.0, 0.0]), + ) + .isFail, + isTrue, + ); + }); }); } diff --git a/packages/flutter_codec/test/primitives/alignment_test.dart b/packages/flutter_codec/test/primitives/alignment_test.dart index 7aac9285..57efc95d 100644 --- a/packages/flutter_codec/test/primitives/alignment_test.dart +++ b/packages/flutter_codec/test/primitives/alignment_test.dart @@ -213,6 +213,14 @@ void main() { } }); + test('rejects encoding a mixed geometry', () { + // Combining Alignment with AlignmentDirectional yields a private + // _MixedAlignment that matches neither branch, so encode fails loudly + // rather than coercing it. + final mixed = Alignment.center.add(AlignmentDirectional.centerStart); + expect(alignmentGeometryCodec.safeEncode(mixed).isFail, isTrue); + }); + group('rejects invalid input', () { const invalidCases = { 'unknown name': 'middle', diff --git a/packages/flutter_codec/test/primitives/border_radius_test.dart b/packages/flutter_codec/test/primitives/border_radius_test.dart index 9b6b9937..f97418ab 100644 --- a/packages/flutter_codec/test/primitives/border_radius_test.dart +++ b/packages/flutter_codec/test/primitives/border_radius_test.dart @@ -210,6 +210,16 @@ void main() { ); }); + test('rejects encoding a mixed geometry', () { + // Combining BorderRadius with BorderRadiusDirectional yields a private + // _MixedBorderRadius that matches neither branch, so encode fails loudly + // rather than coercing it. + final mixed = BorderRadius.circular( + 1, + ).add(BorderRadiusDirectional.circular(2)); + expect(borderRadiusGeometryCodec.safeEncode(mixed).isFail, isTrue); + }); + group('rejects invalid input', () { const invalidCases = { 'mixed keys': {'topLeft': 8, 'topStart': 8}, diff --git a/packages/flutter_codec/test/text_style/text_style_test.dart b/packages/flutter_codec/test/text_style/text_style_test.dart index 0b0018ea..78cae5b4 100644 --- a/packages/flutter_codec/test/text_style/text_style_test.dart +++ b/packages/flutter_codec/test/text_style/text_style_test.dart @@ -193,6 +193,18 @@ void main() { ); expect(roundTripped!.fontFamily, 'packages/foo/Bar'); }); + + test('encodes a package with no fontFamily as a null family', () { + // TextStyle(package: 'my_pkg') with no fontFamily folds to the literal + // 'packages/my_pkg/null'. Encode must recover a genuine null primary + // family (not the four-char string 'null') so the JSON is valid for any + // consumer, and it must still round-trip. + const original = TextStyle(package: 'my_pkg'); + final encoded = textStyleCodec.encode(original) as Map; + expect(encoded['fontFamily'], isNull); + expect(encoded['package'], 'my_pkg'); + expect(textStyleCodec.parse(encoded), original); + }); }); group('textStyleCodec rejects invalid input', () { From ee190dd7a9b661a74d12b75cbe0093cf13a590d6 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Sun, 5 Jul 2026 14:49:43 -0400 Subject: [PATCH 49/53] Clean up flutter_codec DCM lint findings in lib/ Disables prefer-shorthands-with-static-fields (needs Dart 3.10; the package floor is 3.8) and removes 141 explicit type arguments that the analyzer already infers, clearing the shared workspace lint config's remaining actionable findings in lib/. --- packages/flutter_codec/analysis_options.yaml | 7 +++ packages/flutter_codec/lib/src/borders.dart | 24 ++++---- .../flutter_codec/lib/src/constraints.dart | 2 + .../lib/src/decoration_image.dart | 29 ++++------ .../flutter_codec/lib/src/decorations.dart | 43 +++++--------- .../lib/src/font_family_packing.dart | 1 + packages/flutter_codec/lib/src/gradients.dart | 29 +++++----- .../lib/src/image_providers.dart | 13 ++--- .../lib/src/primitives/alignment.dart | 5 +- .../lib/src/primitives/border_radius.dart | 17 +++--- .../lib/src/primitives/color.dart | 5 ++ .../lib/src/primitives/edge_insets.dart | 1 + .../lib/src/primitives/font_feature.dart | 6 +- .../lib/src/primitives/font_variation.dart | 6 +- .../lib/src/primitives/locale.dart | 1 + .../lib/src/primitives/radius.dart | 2 + .../src/primitives/text_height_behavior.dart | 15 +---- packages/flutter_codec/lib/src/shadows.dart | 10 ++-- .../flutter_codec/lib/src/shape_borders.dart | 35 ++++++------ .../flutter_codec/lib/src/strut_style.dart | 20 +++---- .../flutter_codec/lib/src/text_style.dart | 57 +++++++------------ .../lib/src/widgets/container.dart | 38 ++++++------- .../flutter_codec/lib/src/widgets/key.dart | 10 ++-- .../flutter_codec/lib/src/widgets/text.dart | 47 ++++++--------- 24 files changed, 184 insertions(+), 239 deletions(-) diff --git a/packages/flutter_codec/analysis_options.yaml b/packages/flutter_codec/analysis_options.yaml index f9c2b979..4e885bbe 100644 --- a/packages/flutter_codec/analysis_options.yaml +++ b/packages/flutter_codec/analysis_options.yaml @@ -7,3 +7,10 @@ analyzer: strict-casts: true strict-inference: true strict-raw-types: true + +dart_code_metrics: + rules: + # Dot shorthands require Dart 3.10; this package's SDK floor is 3.8 (see + # pubspec.yaml). Same constraint as the workspace root's + # prefer-shorthands-with-enums override. + prefer-shorthands-with-static-fields: false diff --git a/packages/flutter_codec/lib/src/borders.dart b/packages/flutter_codec/lib/src/borders.dart index f281d5c0..85a5f1c1 100644 --- a/packages/flutter_codec/lib/src/borders.dart +++ b/packages/flutter_codec/lib/src/borders.dart @@ -70,11 +70,12 @@ BorderSide _decodeBorderSide(Object value) { if (value == 'none') return BorderSide.none; final map = value as JsonMap; + return BorderSide( - color: readValue(map, 'color'), + color: readValue(map, 'color'), width: readDouble(map, 'width'), - style: readValue(map, 'style'), - strokeAlign: readValue(map, 'strokeAlign'), + style: readValue(map, 'style'), + strokeAlign: readValue(map, 'strokeAlign'), ); } @@ -120,11 +121,12 @@ Border _decodeBorder(Object value) { if (value is BorderSide) return Border.fromBorderSide(value); final map = value as JsonMap; + return Border( - top: readValue(map, 'top'), - right: readValue(map, 'right'), - bottom: readValue(map, 'bottom'), - left: readValue(map, 'left'), + top: readValue(map, 'top'), + right: readValue(map, 'right'), + bottom: readValue(map, 'bottom'), + left: readValue(map, 'left'), ); } @@ -155,10 +157,10 @@ final borderDirectionalCodec = 'bottom': borderSideCodec.withDefault(BorderSide.none), }).codec( decode: (data) => BorderDirectional( - top: readValue(data, 'top'), - start: readValue(data, 'start'), - end: readValue(data, 'end'), - bottom: readValue(data, 'bottom'), + top: readValue(data, 'top'), + start: readValue(data, 'start'), + end: readValue(data, 'end'), + bottom: readValue(data, 'bottom'), ), encode: (value) => { 'top': value.top, diff --git a/packages/flutter_codec/lib/src/constraints.dart b/packages/flutter_codec/lib/src/constraints.dart index 82e07631..96b9fc42 100644 --- a/packages/flutter_codec/lib/src/constraints.dart +++ b/packages/flutter_codec/lib/src/constraints.dart @@ -58,12 +58,14 @@ double _readMinBound(JsonMap data, String key) { if (!data.containsKey(key)) return 0; final value = data[key]; if (value == null) return double.infinity; + return (value as num).toDouble(); } double _readMaxBound(JsonMap data, String key) { final value = data[key]; if (value == null) return double.infinity; + return (value as num).toDouble(); } diff --git a/packages/flutter_codec/lib/src/decoration_image.dart b/packages/flutter_codec/lib/src/decoration_image.dart index 5fa25a38..8d49c567 100644 --- a/packages/flutter_codec/lib/src/decoration_image.dart +++ b/packages/flutter_codec/lib/src/decoration_image.dart @@ -1,14 +1,6 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' - show - Alignment, - AlignmentGeometry, - BoxFit, - DecorationImage, - FilterQuality, - ImageProvider, - ImageRepeat, - Rect; + show Alignment, BoxFit, DecorationImage, FilterQuality, ImageRepeat; import 'enums.dart' show boxFitCodec, filterQualityCodec, imageRepeatCodec; import 'image_providers.dart' show imageProviderCodec; @@ -58,17 +50,17 @@ final decorationImageCodec = 'isAntiAlias': Ack.boolean().withDefault(false), }).codec( decode: (data) => DecorationImage( - image: readValue(data, 'image'), - fit: readNullableValue(data, 'fit'), - alignment: readValue(data, 'alignment'), - centerSlice: readNullableValue(data, 'centerSlice'), - repeat: readValue(data, 'repeat'), - matchTextDirection: readValue(data, 'matchTextDirection'), + image: readValue(data, 'image'), + fit: readNullableValue(data, 'fit'), + alignment: readValue(data, 'alignment'), + centerSlice: readNullableValue(data, 'centerSlice'), + repeat: readValue(data, 'repeat'), + matchTextDirection: readValue(data, 'matchTextDirection'), scale: readDouble(data, 'scale'), opacity: readDouble(data, 'opacity'), - filterQuality: readValue(data, 'filterQuality'), - invertColors: readValue(data, 'invertColors'), - isAntiAlias: readValue(data, 'isAntiAlias'), + filterQuality: readValue(data, 'filterQuality'), + invertColors: readValue(data, 'invertColors'), + isAntiAlias: readValue(data, 'isAntiAlias'), ), encode: (value) { if (value.colorFilter != null) { @@ -79,6 +71,7 @@ final decorationImageCodec = 'equality. Remove the colorFilter before encoding.', ); } + return { 'image': value.image, 'fit': value.fit, diff --git a/packages/flutter_codec/lib/src/decorations.dart b/packages/flutter_codec/lib/src/decorations.dart index ecb8d28c..6c18aeeb 100644 --- a/packages/flutter_codec/lib/src/decorations.dart +++ b/packages/flutter_codec/lib/src/decorations.dart @@ -1,18 +1,6 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' - show - BlendMode, - BorderRadiusGeometry, - BoxBorder, - BoxDecoration, - BoxShadow, - BoxShape, - Color, - Decoration, - DecorationImage, - Gradient, - ShapeBorder, - ShapeDecoration; + show BoxDecoration, BoxShape, Decoration, ShapeDecoration; import 'borders.dart' show boxBorderCodec; import 'decoration_image.dart' show decorationImageCodec; @@ -69,17 +57,14 @@ final boxDecorationCodec = BoxDecoration _decodeBoxDecoration(JsonMap data) { return BoxDecoration( - color: readNullableValue(data, 'color'), - image: readNullableValue(data, 'image'), - border: readNullableValue(data, 'border'), - borderRadius: readNullableValue(data, 'borderRadius'), - boxShadow: readNullableList(data, 'boxShadow'), - gradient: readNullableValue(data, 'gradient'), - backgroundBlendMode: readNullableValue( - data, - 'backgroundBlendMode', - ), - shape: readValue(data, 'shape'), + color: readNullableValue(data, 'color'), + image: readNullableValue(data, 'image'), + border: readNullableValue(data, 'border'), + borderRadius: readNullableValue(data, 'borderRadius'), + boxShadow: readNullableList(data, 'boxShadow'), + gradient: readNullableValue(data, 'gradient'), + backgroundBlendMode: readNullableValue(data, 'backgroundBlendMode'), + shape: readValue(data, 'shape'), ); } @@ -128,11 +113,11 @@ final shapeDecorationCodec = ShapeDecoration _decodeShapeDecoration(JsonMap data) { return ShapeDecoration( - color: readNullableValue(data, 'color'), - image: readNullableValue(data, 'image'), - gradient: readNullableValue(data, 'gradient'), - shadows: readNullableList(data, 'shadows'), - shape: readValue(data, 'shape'), + color: readNullableValue(data, 'color'), + image: readNullableValue(data, 'image'), + gradient: readNullableValue(data, 'gradient'), + shadows: readNullableList(data, 'shadows'), + shape: readValue(data, 'shape'), ); } diff --git a/packages/flutter_codec/lib/src/font_family_packing.dart b/packages/flutter_codec/lib/src/font_family_packing.dart index cc7f408a..ddb0129c 100644 --- a/packages/flutter_codec/lib/src/font_family_packing.dart +++ b/packages/flutter_codec/lib/src/font_family_packing.dart @@ -78,5 +78,6 @@ String? _sharedPackagePrefix(List families) { return null; } } + return shared; } diff --git a/packages/flutter_codec/lib/src/gradients.dart b/packages/flutter_codec/lib/src/gradients.dart index c70c7518..372dd93d 100644 --- a/packages/flutter_codec/lib/src/gradients.dart +++ b/packages/flutter_codec/lib/src/gradients.dart @@ -4,8 +4,6 @@ import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' show Alignment, - AlignmentGeometry, - Color, Gradient, GradientTransform, LinearGradient, @@ -37,6 +35,7 @@ bool _stopsMatchColors(JsonMap data) { final stops = data['stops']; if (stops is! List) return true; final colors = data['colors']; + return colors is List && stops.length == colors.length; } @@ -49,6 +48,7 @@ bool _stopsAscending(JsonMap data) { if (current is! num || next is! num) return true; if (current > next) return false; } + return true; } @@ -79,14 +79,15 @@ final linearGradientCodec = .refine(_stopsAscending, message: _stopsAscendingMessage) .codec( decode: (data) => LinearGradient( - begin: readValue(data, 'begin'), - end: readValue(data, 'end'), - colors: readList(data, 'colors'), + begin: readValue(data, 'begin'), + end: readValue(data, 'end'), + colors: readList(data, 'colors'), stops: readNullableDoubleList(data, 'stops'), - tileMode: readValue(data, 'tileMode'), + tileMode: readValue(data, 'tileMode'), ), encode: (value) { _requireEncodableTransform(value.transform); + return { 'type': 'linear', 'begin': value.begin, @@ -118,16 +119,17 @@ final radialGradientCodec = .refine(_stopsAscending, message: _stopsAscendingMessage) .codec( decode: (data) => RadialGradient( - center: readValue(data, 'center'), + center: readValue(data, 'center'), radius: readDouble(data, 'radius'), - colors: readList(data, 'colors'), + colors: readList(data, 'colors'), stops: readNullableDoubleList(data, 'stops'), - tileMode: readValue(data, 'tileMode'), - focal: readNullableValue(data, 'focal'), + tileMode: readValue(data, 'tileMode'), + focal: readNullableValue(data, 'focal'), focalRadius: readDouble(data, 'focalRadius'), ), encode: (value) { _requireEncodableTransform(value.transform); + return { 'type': 'radial', 'center': value.center, @@ -160,15 +162,16 @@ final sweepGradientCodec = .refine(_stopsAscending, message: _stopsAscendingMessage) .codec( decode: (data) => SweepGradient( - center: readValue(data, 'center'), + center: readValue(data, 'center'), startAngle: readDouble(data, 'startAngle'), endAngle: readDouble(data, 'endAngle'), - colors: readList(data, 'colors'), + colors: readList(data, 'colors'), stops: readNullableDoubleList(data, 'stops'), - tileMode: readValue(data, 'tileMode'), + tileMode: readValue(data, 'tileMode'), ), encode: (value) { _requireEncodableTransform(value.transform); + return { 'type': 'sweep', 'center': value.center, diff --git a/packages/flutter_codec/lib/src/image_providers.dart b/packages/flutter_codec/lib/src/image_providers.dart index b2feca13..99dcf18d 100644 --- a/packages/flutter_codec/lib/src/image_providers.dart +++ b/packages/flutter_codec/lib/src/image_providers.dart @@ -32,13 +32,10 @@ final networkImageCodec = ), }).codec( decode: (data) => NetworkImage( - readValue(data, 'url'), + readValue(data, 'url'), scale: readDouble(data, 'scale'), - headers: readNullableValue>(data, 'headers'), - webHtmlElementStrategy: readValue( - data, - 'webHtmlElementStrategy', - ), + headers: readNullableValue(data, 'headers'), + webHtmlElementStrategy: readValue(data, 'webHtmlElementStrategy'), ), encode: (value) => { 'url': value.url, @@ -60,8 +57,8 @@ final assetImageCodec = 'package': Ack.string().nullable().optional(), }).codec( decode: (data) => AssetImage( - readValue(data, 'assetName'), - package: readNullableValue(data, 'package'), + readValue(data, 'assetName'), + package: readNullableValue(data, 'package'), ), encode: (value) { if (value.bundle != null) { diff --git a/packages/flutter_codec/lib/src/primitives/alignment.dart b/packages/flutter_codec/lib/src/primitives/alignment.dart index ccd8d087..6d4f6d21 100644 --- a/packages/flutter_codec/lib/src/primitives/alignment.dart +++ b/packages/flutter_codec/lib/src/primitives/alignment.dart @@ -37,6 +37,7 @@ Alignment _decodeAlignment(Object value) { if (value is _Alignment) return value.value; final map = value as JsonMap; + return Alignment(readDouble(map, 'x'), readDouble(map, 'y')); } @@ -83,6 +84,7 @@ AlignmentDirectional _decodeAlignmentDirectional(Object value) { if (value is _AlignmentDirectional) return value.value; final map = value as JsonMap; + return AlignmentDirectional(readDouble(map, 'start'), readDouble(map, 'y')); } @@ -126,6 +128,7 @@ AlignmentGeometry _decodeAlignmentGeometry(Object value) { final isDirectional = value is _AlignmentDirectional || (value is JsonMap && value.containsKey('start')); + return isDirectional ? _decodeAlignmentDirectional(value) : _decodeAlignment(value); @@ -134,7 +137,7 @@ AlignmentGeometry _decodeAlignmentGeometry(Object value) { /// The center-column directional constants share a spelling with [Alignment] /// names, so they must not be emitted as names through [alignmentGeometryCodec]. /// (Not `const`: [AlignmentDirectional] overrides `==`.) -final _centerColumnDirectionals = { +final _centerColumnDirectionals = { AlignmentDirectional.topCenter, AlignmentDirectional.center, AlignmentDirectional.bottomCenter, diff --git a/packages/flutter_codec/lib/src/primitives/border_radius.dart b/packages/flutter_codec/lib/src/primitives/border_radius.dart index 63f28bc2..eebd3354 100644 --- a/packages/flutter_codec/lib/src/primitives/border_radius.dart +++ b/packages/flutter_codec/lib/src/primitives/border_radius.dart @@ -27,11 +27,12 @@ BorderRadius _decodeBorderRadius(Object value) { if (value is Radius) return BorderRadius.all(value); final map = value as JsonMap; + return BorderRadius.only( - topLeft: readValue(map, 'topLeft'), - topRight: readValue(map, 'topRight'), - bottomLeft: readValue(map, 'bottomLeft'), - bottomRight: readValue(map, 'bottomRight'), + topLeft: readValue(map, 'topLeft'), + topRight: readValue(map, 'topRight'), + bottomLeft: readValue(map, 'bottomLeft'), + bottomRight: readValue(map, 'bottomRight'), ); } @@ -63,10 +64,10 @@ final borderRadiusDirectionalCodec = 'bottomEnd': radiusCodec.withDefault(Radius.zero), }).codec( decode: (data) => BorderRadiusDirectional.only( - topStart: readValue(data, 'topStart'), - topEnd: readValue(data, 'topEnd'), - bottomStart: readValue(data, 'bottomStart'), - bottomEnd: readValue(data, 'bottomEnd'), + topStart: readValue(data, 'topStart'), + topEnd: readValue(data, 'topEnd'), + bottomStart: readValue(data, 'bottomStart'), + bottomEnd: readValue(data, 'bottomEnd'), ), encode: (value) => { 'topStart': value.topStart, diff --git a/packages/flutter_codec/lib/src/primitives/color.dart b/packages/flutter_codec/lib/src/primitives/color.dart index 7a65bfd2..b53ca5be 100644 --- a/packages/flutter_codec/lib/src/primitives/color.dart +++ b/packages/flutter_codec/lib/src/primitives/color.dart @@ -60,17 +60,20 @@ Color _parseColor(String value) { Color _parseHexColor(String value) { final hex = value.substring(1); final argb = hex.length == 6 ? 'FF$hex' : hex; + return Color(int.parse(argb, radix: 16)); } Color _parseRgbColor(String value) { final channels = _parseChannelList(value, prefix: 'rgb(', count: 3); + return Color.fromARGB(0xFF, channels[0], channels[1], channels[2]); } Color _parseRgbaColor(String value) { final channels = _parseChannelList(value, prefix: 'rgba(', count: 4); final alpha = channels[3]; + return Color.fromARGB(alpha, channels[0], channels[1], channels[2]); } @@ -91,6 +94,7 @@ List _parseChannelList( if (channel < 0 || channel > 255) { throw FormatException('Color channel out of range: $channel'); } + return channel; }) .toList(growable: false); @@ -101,6 +105,7 @@ List _parseChannelList( if (alpha < 0 || alpha > 1) { throw FormatException('Alpha channel out of range: $alpha'); } + return [...rgb, (alpha * 255).round()]; } diff --git a/packages/flutter_codec/lib/src/primitives/edge_insets.dart b/packages/flutter_codec/lib/src/primitives/edge_insets.dart index 3d3fc07e..55dff5ca 100644 --- a/packages/flutter_codec/lib/src/primitives/edge_insets.dart +++ b/packages/flutter_codec/lib/src/primitives/edge_insets.dart @@ -31,6 +31,7 @@ EdgeInsets _decodeEdgeInsets(Object value) { if (value is num) return EdgeInsets.all(value.toDouble()); final map = value as JsonMap; + return EdgeInsets.fromLTRB( readDouble(map, 'left'), readDouble(map, 'top'), diff --git a/packages/flutter_codec/lib/src/primitives/font_feature.dart b/packages/flutter_codec/lib/src/primitives/font_feature.dart index 6460be4f..f5c2842a 100644 --- a/packages/flutter_codec/lib/src/primitives/font_feature.dart +++ b/packages/flutter_codec/lib/src/primitives/font_feature.dart @@ -25,9 +25,7 @@ final fontFeatureCodec = 'feature': Ack.string().matches(_tagPattern), 'value': Ack.integer().min(0).withDefault(1), }).codec( - decode: (data) => FontFeature( - readValue(data, 'feature'), - readValue(data, 'value'), - ), + decode: (data) => + FontFeature(readValue(data, 'feature'), readValue(data, 'value')), encode: (value) => {'feature': value.feature, 'value': value.value}, ); diff --git a/packages/flutter_codec/lib/src/primitives/font_variation.dart b/packages/flutter_codec/lib/src/primitives/font_variation.dart index fe612bbf..fc613766 100644 --- a/packages/flutter_codec/lib/src/primitives/font_variation.dart +++ b/packages/flutter_codec/lib/src/primitives/font_variation.dart @@ -23,9 +23,7 @@ final fontVariationCodec = 'axis': Ack.string().matches(_axisPattern), 'value': Ack.number().min(-32768).lessThan(32768), }).codec( - decode: (data) => FontVariation( - readValue(data, 'axis'), - readDouble(data, 'value'), - ), + decode: (data) => + FontVariation(readValue(data, 'axis'), readDouble(data, 'value')), encode: (value) => {'axis': value.axis, 'value': value.value}, ); diff --git a/packages/flutter_codec/lib/src/primitives/locale.dart b/packages/flutter_codec/lib/src/primitives/locale.dart index ef524d18..cb361c34 100644 --- a/packages/flutter_codec/lib/src/primitives/locale.dart +++ b/packages/flutter_codec/lib/src/primitives/locale.dart @@ -19,6 +19,7 @@ final localeCodec = Ack.codec( input: Ack.string().matches(_localePattern), decode: (value) { final match = _localeRegex.firstMatch(value)!; + return Locale.fromSubtags( languageCode: match.group(1)!, scriptCode: match.group(2), diff --git a/packages/flutter_codec/lib/src/primitives/radius.dart b/packages/flutter_codec/lib/src/primitives/radius.dart index 2ed4c7d3..ecb3af6f 100644 --- a/packages/flutter_codec/lib/src/primitives/radius.dart +++ b/packages/flutter_codec/lib/src/primitives/radius.dart @@ -20,10 +20,12 @@ Radius _decodeRadius(Object value) { } final map = value as JsonMap; + return Radius.elliptical(readDouble(map, 'x'), readDouble(map, 'y')); } Object _encodeRadius(Radius value) { if (value.x == value.y) return value.x; + return {'x': value.x, 'y': value.y}; } diff --git a/packages/flutter_codec/lib/src/primitives/text_height_behavior.dart b/packages/flutter_codec/lib/src/primitives/text_height_behavior.dart index f72738fd..818381c3 100644 --- a/packages/flutter_codec/lib/src/primitives/text_height_behavior.dart +++ b/packages/flutter_codec/lib/src/primitives/text_height_behavior.dart @@ -21,18 +21,9 @@ final textHeightBehaviorCodec = ), }).codec( decode: (data) => TextHeightBehavior( - applyHeightToFirstAscent: readValue( - data, - 'applyHeightToFirstAscent', - ), - applyHeightToLastDescent: readValue( - data, - 'applyHeightToLastDescent', - ), - leadingDistribution: readValue( - data, - 'leadingDistribution', - ), + applyHeightToFirstAscent: readValue(data, 'applyHeightToFirstAscent'), + applyHeightToLastDescent: readValue(data, 'applyHeightToLastDescent'), + leadingDistribution: readValue(data, 'leadingDistribution'), ), encode: (value) => { 'applyHeightToFirstAscent': value.applyHeightToFirstAscent, diff --git a/packages/flutter_codec/lib/src/shadows.dart b/packages/flutter_codec/lib/src/shadows.dart index 6c845fea..88b5639d 100644 --- a/packages/flutter_codec/lib/src/shadows.dart +++ b/packages/flutter_codec/lib/src/shadows.dart @@ -18,8 +18,8 @@ final shadowCodec = 'blurRadius': Ack.number().min(0).withDefault(0.0), }).codec( decode: (data) => ui.Shadow( - color: readValue(data, 'color'), - offset: readValue(data, 'offset'), + color: readValue(data, 'color'), + offset: readValue(data, 'offset'), blurRadius: readDouble(data, 'blurRadius'), ), encode: (value) => { @@ -43,11 +43,11 @@ final boxShadowCodec = 'blurStyle': blurStyleCodec.withDefault(BlurStyle.normal), }).codec( decode: (data) => BoxShadow( - color: readValue(data, 'color'), - offset: readValue(data, 'offset'), + color: readValue(data, 'color'), + offset: readValue(data, 'offset'), blurRadius: readDouble(data, 'blurRadius'), spreadRadius: readDouble(data, 'spreadRadius'), - blurStyle: readValue(data, 'blurStyle'), + blurStyle: readValue(data, 'blurStyle'), ), encode: (value) => { 'color': value.color, diff --git a/packages/flutter_codec/lib/src/shape_borders.dart b/packages/flutter_codec/lib/src/shape_borders.dart index 829a6231..81bde6bc 100644 --- a/packages/flutter_codec/lib/src/shape_borders.dart +++ b/packages/flutter_codec/lib/src/shape_borders.dart @@ -3,7 +3,6 @@ import 'package:flutter/painting.dart' show BeveledRectangleBorder, BorderRadius, - BorderRadiusGeometry, BorderSide, CircleBorder, ContinuousRectangleBorder, @@ -43,7 +42,7 @@ final circleBorderCodec = 'eccentricity': Ack.number().min(0).max(1).withDefault(0.0), }).codec( decode: (data) => CircleBorder( - side: readValue(data, 'side'), + side: readValue(data, 'side'), eccentricity: readDouble(data, 'eccentricity'), ), encode: (value) => { @@ -61,8 +60,7 @@ final stadiumBorderCodec = Ack.object({ 'side': borderSideCodec.withDefault(BorderSide.none), }).codec( - decode: (data) => - StadiumBorder(side: readValue(data, 'side')), + decode: (data) => StadiumBorder(side: readValue(data, 'side')), encode: (value) => {'side': value.side}, ); @@ -76,8 +74,8 @@ final stadiumBorderCodec = final roundedRectangleBorderCodec = _rectangleBorderSchema .codec( decode: (data) => RoundedRectangleBorder( - side: readValue(data, 'side'), - borderRadius: readValue(data, 'borderRadius'), + side: readValue(data, 'side'), + borderRadius: readValue(data, 'borderRadius'), ), encode: (value) => { 'side': value.side, @@ -94,8 +92,8 @@ final roundedRectangleBorderCodec = _rectangleBorderSchema final beveledRectangleBorderCodec = _rectangleBorderSchema .codec( decode: (data) => BeveledRectangleBorder( - side: readValue(data, 'side'), - borderRadius: readValue(data, 'borderRadius'), + side: readValue(data, 'side'), + borderRadius: readValue(data, 'borderRadius'), ), encode: (value) => { 'side': value.side, @@ -112,8 +110,8 @@ final beveledRectangleBorderCodec = _rectangleBorderSchema final continuousRectangleBorderCodec = _rectangleBorderSchema .codec( decode: (data) => ContinuousRectangleBorder( - side: readValue(data, 'side'), - borderRadius: readValue(data, 'borderRadius'), + side: readValue(data, 'side'), + borderRadius: readValue(data, 'borderRadius'), ), encode: (value) => { 'side': value.side, @@ -132,8 +130,8 @@ final continuousRectangleBorderCodec = _rectangleBorderSchema final roundedSuperellipseBorderCodec = _rectangleBorderSchema .codec( decode: (data) => RoundedSuperellipseBorder( - side: readValue(data, 'side'), - borderRadius: readValue(data, 'borderRadius'), + side: readValue(data, 'side'), + borderRadius: readValue(data, 'borderRadius'), ), encode: (value) => { 'side': value.side, @@ -144,6 +142,7 @@ final roundedSuperellipseBorderCodec = _rectangleBorderSchema bool _starRoundingSumValid(JsonMap data) { final pointRounding = data['pointRounding'] as num; final valleyRounding = data['valleyRounding'] as num; + return pointRounding + valleyRounding <= 1; } @@ -193,7 +192,7 @@ final starBorderCodec = ) .codec( decode: (data) => StarBorder( - side: readValue(data, 'side'), + side: readValue(data, 'side'), points: readDouble(data, 'points'), innerRadiusRatio: readDouble(data, 'innerRadiusRatio'), pointRounding: readDouble(data, 'pointRounding'), @@ -250,11 +249,11 @@ final linearBorderCodec = 'bottom': linearBorderEdgeCodec.nullable().optional(), }).codec( decode: (data) => LinearBorder( - side: readValue(data, 'side'), - start: readNullableValue(data, 'start'), - end: readNullableValue(data, 'end'), - top: readNullableValue(data, 'top'), - bottom: readNullableValue(data, 'bottom'), + side: readValue(data, 'side'), + start: readNullableValue(data, 'start'), + end: readNullableValue(data, 'end'), + top: readNullableValue(data, 'top'), + bottom: readNullableValue(data, 'bottom'), ), encode: (value) => { 'side': value.side, diff --git a/packages/flutter_codec/lib/src/strut_style.dart b/packages/flutter_codec/lib/src/strut_style.dart index 0836dda1..8506daa6 100644 --- a/packages/flutter_codec/lib/src/strut_style.dart +++ b/packages/flutter_codec/lib/src/strut_style.dart @@ -1,6 +1,5 @@ import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' - show FontStyle, FontWeight, StrutStyle, TextLeadingDistribution; +import 'package:flutter/painting.dart' show StrutStyle; import 'enums.dart' show fontStyleCodec, textLeadingDistributionCodec; import 'font_family_packing.dart' show unpackFontFamily; @@ -39,19 +38,16 @@ final strutStyleCodec = Ack.object({ StrutStyle _decodeStrutStyle(JsonMap data) { return StrutStyle( - fontFamily: readNullableValue(data, 'fontFamily'), - fontFamilyFallback: readNullableList(data, 'fontFamilyFallback'), - package: readNullableValue(data, 'package'), + fontFamily: readNullableValue(data, 'fontFamily'), + fontFamilyFallback: readNullableList(data, 'fontFamilyFallback'), + package: readNullableValue(data, 'package'), fontSize: readNullableDouble(data, 'fontSize'), height: readNullableDouble(data, 'height'), - leadingDistribution: readNullableValue( - data, - 'leadingDistribution', - ), + leadingDistribution: readNullableValue(data, 'leadingDistribution'), leading: readNullableDouble(data, 'leading'), - fontWeight: readNullableValue(data, 'fontWeight'), - fontStyle: readNullableValue(data, 'fontStyle'), - forceStrutHeight: readNullableValue(data, 'forceStrutHeight'), + fontWeight: readNullableValue(data, 'fontWeight'), + fontStyle: readNullableValue(data, 'fontStyle'), + forceStrutHeight: readNullableValue(data, 'forceStrutHeight'), ); } diff --git a/packages/flutter_codec/lib/src/text_style.dart b/packages/flutter_codec/lib/src/text_style.dart index 96c009e1..2dad817c 100644 --- a/packages/flutter_codec/lib/src/text_style.dart +++ b/packages/flutter_codec/lib/src/text_style.dart @@ -1,19 +1,8 @@ -import 'dart:ui' as ui show Locale, Shadow; +import 'dart:ui' as ui show Locale; import 'package:ack/ack.dart'; import 'package:flutter/painting.dart' - show - Color, - FontFeature, - FontStyle, - FontVariation, - FontWeight, - TextBaseline, - TextDecoration, - TextDecorationStyle, - TextLeadingDistribution, - TextOverflow, - TextStyle; + show FontWeight, TextDecoration, TextStyle; import 'enums.dart' show @@ -75,35 +64,29 @@ final textStyleCodec = Ack.object({ TextStyle _decodeTextStyle(JsonMap data) { return TextStyle( - inherit: readValue(data, 'inherit'), - color: readNullableValue(data, 'color'), - backgroundColor: readNullableValue(data, 'backgroundColor'), + inherit: readValue(data, 'inherit'), + color: readNullableValue(data, 'color'), + backgroundColor: readNullableValue(data, 'backgroundColor'), fontSize: readNullableDouble(data, 'fontSize'), - fontWeight: readNullableValue(data, 'fontWeight'), - fontStyle: readNullableValue(data, 'fontStyle'), + fontWeight: readNullableValue(data, 'fontWeight'), + fontStyle: readNullableValue(data, 'fontStyle'), letterSpacing: readNullableDouble(data, 'letterSpacing'), wordSpacing: readNullableDouble(data, 'wordSpacing'), - textBaseline: readNullableValue(data, 'textBaseline'), + textBaseline: readNullableValue(data, 'textBaseline'), height: readNullableDouble(data, 'height'), - leadingDistribution: readNullableValue( - data, - 'leadingDistribution', - ), - locale: readNullableValue(data, 'locale'), - shadows: readNullableList(data, 'shadows'), - decoration: readNullableValue(data, 'decoration'), - decorationColor: readNullableValue(data, 'decorationColor'), - decorationStyle: readNullableValue( - data, - 'decorationStyle', - ), + leadingDistribution: readNullableValue(data, 'leadingDistribution'), + locale: readNullableValue(data, 'locale'), + shadows: readNullableList(data, 'shadows'), + decoration: readNullableValue(data, 'decoration'), + decorationColor: readNullableValue(data, 'decorationColor'), + decorationStyle: readNullableValue(data, 'decorationStyle'), decorationThickness: readNullableDouble(data, 'decorationThickness'), - fontFamily: readNullableValue(data, 'fontFamily'), - fontFamilyFallback: readNullableList(data, 'fontFamilyFallback'), - package: readNullableValue(data, 'package'), - overflow: readNullableValue(data, 'overflow'), - fontFeatures: readNullableList(data, 'fontFeatures'), - fontVariations: readNullableList(data, 'fontVariations'), + fontFamily: readNullableValue(data, 'fontFamily'), + fontFamilyFallback: readNullableList(data, 'fontFamilyFallback'), + package: readNullableValue(data, 'package'), + overflow: readNullableValue(data, 'overflow'), + fontFeatures: readNullableList(data, 'fontFeatures'), + fontVariations: readNullableList(data, 'fontVariations'), ); } diff --git a/packages/flutter_codec/lib/src/widgets/container.dart b/packages/flutter_codec/lib/src/widgets/container.dart index bcd73a3c..7e5085f6 100644 --- a/packages/flutter_codec/lib/src/widgets/container.dart +++ b/packages/flutter_codec/lib/src/widgets/container.dart @@ -1,8 +1,6 @@ import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' - show AlignmentGeometry, Color, Decoration, EdgeInsetsGeometry; -import 'package:flutter/rendering.dart' show BoxConstraints; -import 'package:flutter/widgets.dart' show Clip, Container, Matrix4, Widget; +import 'package:flutter/painting.dart' show EdgeInsetsGeometry; +import 'package:flutter/widgets.dart' show Clip, Container, Widget; import '../constraints.dart' show boxConstraintsCodec; import '../decorations.dart' show decorationCodec; @@ -61,10 +59,12 @@ final CodecSchema containerWidgetCodec = // non-negative edges in debug, and the assert is stripped in release. .refine((data) { final padding = data['padding']; + return padding is! EdgeInsetsGeometry || padding.isNonNegative; }, message: 'Container padding must not be negative.') .refine((data) { final margin = data['margin']; + return margin is! EdgeInsetsGeometry || margin.isNonNegative; }, message: 'Container margin must not be negative.') .codec(decode: _decodeContainer, encode: _encodeContainer); @@ -72,26 +72,20 @@ final CodecSchema containerWidgetCodec = Container _decodeContainer(JsonMap data) { return Container( key: readNullableValue(data, 'key'), - alignment: readNullableValue(data, 'alignment'), - padding: readNullableValue(data, 'padding'), - color: readNullableValue(data, 'color'), - isAntiAlias: readValue(data, 'isAntiAlias'), - decoration: readNullableValue(data, 'decoration'), - foregroundDecoration: readNullableValue( - data, - 'foregroundDecoration', - ), + alignment: readNullableValue(data, 'alignment'), + padding: readNullableValue(data, 'padding'), + color: readNullableValue(data, 'color'), + isAntiAlias: readValue(data, 'isAntiAlias'), + decoration: readNullableValue(data, 'decoration'), + foregroundDecoration: readNullableValue(data, 'foregroundDecoration'), width: readNullableDouble(data, 'width'), height: readNullableDouble(data, 'height'), - constraints: readNullableValue(data, 'constraints'), - margin: readNullableValue(data, 'margin'), - transform: readNullableValue(data, 'transform'), - transformAlignment: readNullableValue( - data, - 'transformAlignment', - ), - clipBehavior: readValue(data, 'clipBehavior'), - child: readNullableValue(data, 'child'), + constraints: readNullableValue(data, 'constraints'), + margin: readNullableValue(data, 'margin'), + transform: readNullableValue(data, 'transform'), + transformAlignment: readNullableValue(data, 'transformAlignment'), + clipBehavior: readValue(data, 'clipBehavior'), + child: readNullableValue(data, 'child'), ); } diff --git a/packages/flutter_codec/lib/src/widgets/key.dart b/packages/flutter_codec/lib/src/widgets/key.dart index bb0d050a..1cdf3542 100644 --- a/packages/flutter_codec/lib/src/widgets/key.dart +++ b/packages/flutter_codec/lib/src/widgets/key.dart @@ -29,12 +29,10 @@ Key _decodeKey(JsonMap data) { final value = data['value']; return switch (valueType) { - _ValueKeyValueType.string when value is String => ValueKey(value), - _ValueKeyValueType.int when value is int => ValueKey(value), - _ValueKeyValueType.double when value is num => ValueKey( - value.toDouble(), - ), - _ValueKeyValueType.bool when value is bool => ValueKey(value), + _ValueKeyValueType.string when value is String => ValueKey(value), + _ValueKeyValueType.int when value is int => ValueKey(value), + _ValueKeyValueType.double when value is num => ValueKey(value.toDouble()), + _ValueKeyValueType.bool when value is bool => ValueKey(value), _ => throw FormatException( 'ValueKey payload for valueType "${valueType.name}" has invalid ' 'runtime type ' diff --git a/packages/flutter_codec/lib/src/widgets/text.dart b/packages/flutter_codec/lib/src/widgets/text.dart index afc53158..68d2a115 100644 --- a/packages/flutter_codec/lib/src/widgets/text.dart +++ b/packages/flutter_codec/lib/src/widgets/text.dart @@ -1,17 +1,5 @@ -import 'dart:ui' show Locale; - import 'package:ack/ack.dart'; -import 'package:flutter/painting.dart' - show - Color, - StrutStyle, - TextAlign, - TextDirection, - TextHeightBehavior, - TextOverflow, - TextStyle, - TextWidthBasis; -import 'package:flutter/widgets.dart' show Key, Text; +import 'package:flutter/widgets.dart' show Text; import '../enums.dart' show @@ -54,24 +42,21 @@ final CodecSchema textWidgetCodec = Ack.object({ Text _decodeText(JsonMap data) { return Text( - readValue(data, 'data'), - key: readNullableValue(data, 'key'), - style: readNullableValue(data, 'style'), - strutStyle: readNullableValue(data, 'strutStyle'), - textAlign: readNullableValue(data, 'textAlign'), - textDirection: readNullableValue(data, 'textDirection'), - locale: readNullableValue(data, 'locale'), - softWrap: readNullableValue(data, 'softWrap'), - overflow: readNullableValue(data, 'overflow'), - maxLines: readNullableValue(data, 'maxLines'), - semanticsLabel: readNullableValue(data, 'semanticsLabel'), - semanticsIdentifier: readNullableValue(data, 'semanticsIdentifier'), - textWidthBasis: readNullableValue(data, 'textWidthBasis'), - textHeightBehavior: readNullableValue( - data, - 'textHeightBehavior', - ), - selectionColor: readNullableValue(data, 'selectionColor'), + readValue(data, 'data'), + key: readNullableValue(data, 'key'), + style: readNullableValue(data, 'style'), + strutStyle: readNullableValue(data, 'strutStyle'), + textAlign: readNullableValue(data, 'textAlign'), + textDirection: readNullableValue(data, 'textDirection'), + locale: readNullableValue(data, 'locale'), + softWrap: readNullableValue(data, 'softWrap'), + overflow: readNullableValue(data, 'overflow'), + maxLines: readNullableValue(data, 'maxLines'), + semanticsLabel: readNullableValue(data, 'semanticsLabel'), + semanticsIdentifier: readNullableValue(data, 'semanticsIdentifier'), + textWidthBasis: readNullableValue(data, 'textWidthBasis'), + textHeightBehavior: readNullableValue(data, 'textHeightBehavior'), + selectionColor: readNullableValue(data, 'selectionColor'), ); } From fbe780ed2761e66644f4c460db9d142f5e151276 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Sun, 12 Jul 2026 20:42:28 -0400 Subject: [PATCH 50/53] feat(flutter_codec): complete reference integration --- .github/copilot-instructions.md | 3 +- .github/workflows/ci.yml | 10 +++++ README.md | 1 + docs.json | 2 +- llms.txt | 3 +- packages/flutter_codec/CHANGELOG.md | 2 +- packages/flutter_codec/README.md | 23 +++++++++- .../lib/src/font_family_packing.dart | 7 +-- .../flutter_codec/lib/src/json_readers.dart | 8 +--- .../lib/src/widgets/container.dart | 22 ++++++---- .../flutter_codec/lib/src/widgets/key.dart | 44 +++++++++++++------ packages/flutter_codec/pubspec.yaml | 6 +-- .../flutter_codec/test/widgets/key_test.dart | 26 +++++++++++ pubspec.yaml | 3 +- 14 files changed, 118 insertions(+), 42 deletions(-) diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md index 8a3a7816..8c3b890a 100644 --- a/.github/copilot-instructions.md +++ b/.github/copilot-instructions.md @@ -11,10 +11,11 @@ - `packages/ack_generator`: build_runner generator + golden tests. - `packages/ack_firebase_ai`: Firebase AI schema adapter. - `packages/ack_json_schema_builder`: JSON Schema adapter. +- `packages/flutter_codec`: ACK codecs for portable Flutter value types. - `example`: sample usage. ## Environment and setup -- Required SDKs: Dart `>=3.8.0 <4.0.0`, Flutter `>=3.16.0` (see `/pubspec.yaml`). +- Required SDKs: Dart `>=3.8.0 <4.0.0`, Flutter `>=3.41.0` (see `/pubspec.yaml`). - Use from repo root: 1. `dart pub global activate melos` 2. `melos bootstrap` diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index fc3e0f47..ce6e3a7c 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -8,9 +8,19 @@ on: jobs: test: + name: Flutter stable uses: btwld/dart-actions/.github/workflows/ci.yml@main secrets: token: ${{ secrets.GITHUB_TOKEN }} with: flutter-version: "stable" run-dcm: true + + test-minimum: + name: Flutter 3.41.0 + uses: btwld/dart-actions/.github/workflows/ci.yml@main + secrets: + token: ${{ secrets.GITHUB_TOKEN }} + with: + flutter-version: "3.41.0" + run-dcm: false diff --git a/README.md b/README.md index 801f22c1..44e7eb11 100644 --- a/README.md +++ b/README.md @@ -25,6 +25,7 @@ This repository is a monorepo containing: - **[ack_generator](./packages/ack_generator)**: Code generator that turns `@AckType()` schemas into type-safe extension types - **[ack_firebase_ai](./packages/ack_firebase_ai)**: Firebase AI (Gemini) schema converter for structured-output generation - **[ack_json_schema_builder](./packages/ack_json_schema_builder)**: Converter to `json_schema_builder` schemas +- **[flutter_codec](./packages/flutter_codec)**: ACK codecs for portable Flutter painting, rendering, and widget values - **[example](./example)**: Example projects demonstrating usage of all packages ## Quick start diff --git a/docs.json b/docs.json index 5a23af11..40babf7a 100644 --- a/docs.json +++ b/docs.json @@ -75,7 +75,7 @@ ], "variables": { "versions": { - "default": "1.0.0", + "default": "1.0.1", "isPrerelease": false } }, diff --git a/llms.txt b/llms.txt index 331580d7..f62fde4b 100644 --- a/llms.txt +++ b/llms.txt @@ -1,6 +1,6 @@ # Ack -> A schema validation library for Dart and Flutter with a fluent runtime API and `@AckType()`-driven extension-type generation. Version 1.0.0. +> A schema validation library for Dart and Flutter with a fluent runtime API and `@AckType()`-driven extension-type generation. Version 1.0.1. Ack validates external data with hand-written schemas built using the `Ack` factory. When you want typed wrappers over validated values, annotate top-level @@ -13,6 +13,7 @@ schema variables or getters with `@AckType()` and run `ack_generator`. 3. `ack_generator`: generates extension types for annotated top-level schemas 4. `ack_firebase_ai`: converts Ack schemas to Firebase AI structured-output schemas 5. `ack_json_schema_builder`: converts Ack schemas to `json_schema_builder` schemas +6. `flutter_codec`: ACK codecs for portable Flutter painting, rendering, and widget values ## Core runtime usage diff --git a/packages/flutter_codec/CHANGELOG.md b/packages/flutter_codec/CHANGELOG.md index f4ecc5b0..0d7aada4 100644 --- a/packages/flutter_codec/CHANGELOG.md +++ b/packages/flutter_codec/CHANGELOG.md @@ -14,7 +14,7 @@ Initial release. JSON value codecs for Flutter's painting and rendering layers, plus a small set of widget codecs, built on [`ack`](../ack/README.md). -Requires Flutter `>=3.32.0`. +Requires Flutter `>=3.41.0`. - **Primitives**: `Color`, `Offset`, `Radius`, `Rect`, `Alignment` / `AlignmentDirectional` / `AlignmentGeometry`, `EdgeInsets` / diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index 166458c0..a301cb56 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -2,7 +2,7 @@ JSON value codecs for Flutter's painting and rendering layers — plus a small, growing set of widget codecs (`Container`, `Text`, `Key`) — built on -[`ack`](../ack/README.md). +[`ack`](https://pub.dev/packages/ack). Every codec is an Ack `CodecSchema` and exposes the same surface: @@ -10,6 +10,7 @@ Every codec is an Ack `CodecSchema` and exposes the same surface: codec.parse(json); // decode, throws on failure codec.safeParse(json); // decode, returns SchemaResult codec.encode(value); // encode to a JSON-safe map / scalar +codec.safeEncode(value); // encode, returns SchemaResult codec.toJsonSchema(); // emit JSON Schema for downstream tooling ``` @@ -39,6 +40,20 @@ final roundTripped = boxDecorationCodec.parse(json); assert(roundTripped == decoration); ``` +## ACK patterns in this package + +- [`colorCodec`](lib/src/primitives/color.dart) shows a custom codec with a + compact boundary and a rich Flutter runtime value. +- [`boxDecorationCodec`](lib/src/decorations.dart) composes child codecs and + applies defaults while keeping its canonical output explicit. +- [`gradientCodec`](lib/src/gradients.dart) combines literals, named + refinements, and a discriminated union. +- [`widgetCodec`](lib/src/widgets/widget.dart) uses `Ack.lazy` through its + recursive `Container` branch, with a bounded runtime depth. + +Together, `safeParse`, `safeEncode`, and `toJsonSchema` provide the public +validation, encoding, and boundary-schema workflow for all of these patterns. + ## Coverage | Family | Type(s) | Codec(s) | Source | @@ -142,6 +157,12 @@ that round-trips through `jsonEncode`. Composition flows through: the schema for `boxDecorationCodec` embeds the schemas for its dependent codecs (color pattern, gradient discriminator, shape enum, and so on). +Draft-7 output describes the portable boundary and the constraints that JSON +Schema can express. Cross-field Dart refinements, such as correlated gradient +stops or `Container` constructor invariants, and the `Ack.lazy` widget recursion +cap remain runtime-only. Use `safeParse` and `safeEncode` when those checks must +be enforced; exported JSON Schema alone does not include them. + ## Roadmap The painting- and rendering-layer surface is feature-complete for the types diff --git a/packages/flutter_codec/lib/src/font_family_packing.dart b/packages/flutter_codec/lib/src/font_family_packing.dart index ddb0129c..6c82c60a 100644 --- a/packages/flutter_codec/lib/src/font_family_packing.dart +++ b/packages/flutter_codec/lib/src/font_family_packing.dart @@ -72,11 +72,8 @@ String? _sharedPackagePrefix(List families) { if (separator <= 0 || separator == rest.length - 1) return null; final name = rest.substring(0, separator); - if (shared == null) { - shared = name; - } else if (shared != name) { - return null; - } + shared ??= name; + if (shared != name) return null; } return shared; diff --git a/packages/flutter_codec/lib/src/json_readers.dart b/packages/flutter_codec/lib/src/json_readers.dart index 839dbb26..6d8e19ec 100644 --- a/packages/flutter_codec/lib/src/json_readers.dart +++ b/packages/flutter_codec/lib/src/json_readers.dart @@ -37,9 +37,5 @@ List readDoubleList(JsonMap map, String key) => (map[key]! as List).map((value) => (value as num).toDouble()).toList(); /// Reads the optional numeric list field [key] as `List`. -List? readNullableDoubleList(JsonMap map, String key) { - final raw = map[key]; - if (raw == null) return null; - - return (raw as List).map((value) => (value as num).toDouble()).toList(); -} +List? readNullableDoubleList(JsonMap map, String key) => + (map[key] as List?)?.map((value) => (value as num).toDouble()).toList(); diff --git a/packages/flutter_codec/lib/src/widgets/container.dart b/packages/flutter_codec/lib/src/widgets/container.dart index 7e5085f6..3eb20478 100644 --- a/packages/flutter_codec/lib/src/widgets/container.dart +++ b/packages/flutter_codec/lib/src/widgets/container.dart @@ -57,17 +57,21 @@ final CodecSchema containerWidgetCodec = ) // Reject negative insets: Flutter's Padding/margin handling asserts // non-negative edges in debug, and the assert is stripped in release. - .refine((data) { - final padding = data['padding']; + .refine( + (data) => _hasNonNegativeInset(data, 'padding'), + message: 'Container padding must not be negative.', + ) + .refine( + (data) => _hasNonNegativeInset(data, 'margin'), + message: 'Container margin must not be negative.', + ) + .codec(decode: _decodeContainer, encode: _encodeContainer); - return padding is! EdgeInsetsGeometry || padding.isNonNegative; - }, message: 'Container padding must not be negative.') - .refine((data) { - final margin = data['margin']; +bool _hasNonNegativeInset(JsonMap data, String key) { + final inset = data[key]; - return margin is! EdgeInsetsGeometry || margin.isNonNegative; - }, message: 'Container margin must not be negative.') - .codec(decode: _decodeContainer, encode: _encodeContainer); + return inset is! EdgeInsetsGeometry || inset.isNonNegative; +} Container _decodeContainer(JsonMap data) { return Container( diff --git a/packages/flutter_codec/lib/src/widgets/key.dart b/packages/flutter_codec/lib/src/widgets/key.dart index 1cdf3542..7256487e 100644 --- a/packages/flutter_codec/lib/src/widgets/key.dart +++ b/packages/flutter_codec/lib/src/widgets/key.dart @@ -19,25 +19,43 @@ final keyCodec = Ack.discriminated( schemas: {_valueKeyType: _valueKeyCodec}, ); -final _valueKeyCodec = Ack.object({ - 'valueType': Ack.enumCodec(_ValueKeyValueType.values), - 'value': Ack.any(), -}).codec(decode: _decodeKey, encode: _encodeKey); +final _valueKeyCodec = + Ack.object({ + 'valueType': Ack.enumCodec(_ValueKeyValueType.values), + 'value': Ack.anyOf([ + Ack.string(), + Ack.integer(), + Ack.double(), + Ack.boolean(), + ]), + }) + .refine( + _valueMatchesValueType, + message: 'ValueKey value must match its declared valueType.', + ) + .codec(decode: _decodeKey, encode: _encodeKey); + +bool _valueMatchesValueType(JsonMap data) { + final valueType = readValue<_ValueKeyValueType>(data, 'valueType'); + final value = data['value']; + + return switch (valueType) { + _ValueKeyValueType.string => value is String, + _ValueKeyValueType.int => value is int, + _ValueKeyValueType.double => value is num, + _ValueKeyValueType.bool => value is bool, + }; +} Key _decodeKey(JsonMap data) { final valueType = readValue<_ValueKeyValueType>(data, 'valueType'); final value = data['value']; return switch (valueType) { - _ValueKeyValueType.string when value is String => ValueKey(value), - _ValueKeyValueType.int when value is int => ValueKey(value), - _ValueKeyValueType.double when value is num => ValueKey(value.toDouble()), - _ValueKeyValueType.bool when value is bool => ValueKey(value), - _ => throw FormatException( - 'ValueKey payload for valueType "${valueType.name}" has invalid ' - 'runtime type ' - '${value.runtimeType}.', - ), + _ValueKeyValueType.string => ValueKey(value as String), + _ValueKeyValueType.int => ValueKey(value as int), + _ValueKeyValueType.double => ValueKey((value as num).toDouble()), + _ValueKeyValueType.bool => ValueKey(value as bool), }; } diff --git a/packages/flutter_codec/pubspec.yaml b/packages/flutter_codec/pubspec.yaml index ad68b31a..088da18a 100644 --- a/packages/flutter_codec/pubspec.yaml +++ b/packages/flutter_codec/pubspec.yaml @@ -8,9 +8,9 @@ resolution: workspace environment: sdk: '>=3.8.0 <4.0.0' - # Floor is 3.32.0: RoundedSuperellipseBorder and Text.semanticsIdentifier - # first shipped stable in 3.32.0 (WebHtmlElementStrategy in 3.29.0). - flutter: '>=3.32.0' + # Floor is 3.41.0: FontWeight(int) and Container.isAntiAlias are part of the + # codec contract and are unavailable in Flutter 3.38.1. + flutter: '>=3.41.0' dependencies: ack: ^1.0.1 diff --git a/packages/flutter_codec/test/widgets/key_test.dart b/packages/flutter_codec/test/widgets/key_test.dart index a469a673..e5a0f91b 100644 --- a/packages/flutter_codec/test/widgets/key_test.dart +++ b/packages/flutter_codec/test/widgets/key_test.dart @@ -117,12 +117,38 @@ void main() { 'valueType': 'double', 'value': 'oops', }, + 'object value': { + 'type': 'value', + 'valueType': 'string', + 'value': {'nested': 'value'}, + }, + 'list value': { + 'type': 'value', + 'valueType': 'string', + 'value': ['value'], + }, }; invalidCases.forEach((name, input) { expect(keyCodec.safeParse(input).isFail, isTrue, reason: name); }); }); + + test('exports only supported scalar value schemas', () { + final jsonSchema = keyCodec.toJsonSchema(); + final branches = jsonSchema['anyOf']! as List; + final valueKeySchema = branches.single! as Map; + final properties = valueKeySchema['properties']! as Map; + final valueSchema = properties['value']! as Map; + final valueBranches = valueSchema['anyOf']! as List; + + expect(valueBranches, [ + {'type': 'string'}, + {'type': 'integer'}, + {'type': 'number'}, + {'type': 'boolean'}, + ]); + }); }); } diff --git a/pubspec.yaml b/pubspec.yaml index e7993aeb..ba7e417c 100644 --- a/pubspec.yaml +++ b/pubspec.yaml @@ -3,7 +3,7 @@ description: ACK workspace root package environment: sdk: '>=3.8.0 <4.0.0' - flutter: '>=3.16.0' + flutter: '>=3.41.0' workspace: - packages/ack @@ -61,6 +61,7 @@ melos: - ack_json_schema_builder - ack_example - ack_annotations + - flutter_codec fix: run: melos exec -- "dart fix --apply" From a5e40f0f41b965af16477cf0e0ad282020745990 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Mon, 13 Jul 2026 11:07:39 -0400 Subject: [PATCH 51/53] test(flutter_codec): pin public schema contract --- packages/flutter_codec/test/golden/README.md | 7 + .../test/golden/fixtures/json_schema.json | 104 ++++++++++ .../test/golden/schema_golden_test.dart | 180 ++++++++++++++++++ .../test/public_api_contract_test.dart | 27 +++ 4 files changed, 318 insertions(+) create mode 100644 packages/flutter_codec/test/golden/fixtures/json_schema.json create mode 100644 packages/flutter_codec/test/golden/schema_golden_test.dart create mode 100644 packages/flutter_codec/test/public_api_contract_test.dart diff --git a/packages/flutter_codec/test/golden/README.md b/packages/flutter_codec/test/golden/README.md index 4b95b2f1..33561f25 100644 --- a/packages/flutter_codec/test/golden/README.md +++ b/packages/flutter_codec/test/golden/README.md @@ -5,6 +5,12 @@ produces, and `golden_test.dart` proves each one parses back. They are the human-reviewable record of the package's wire format — if an encoder changes shape, a fixture diff makes it obvious. +`json_schema.json` separately pins the JSON Schema exported by all public +codecs. It uses one compact schema per line so a diff identifies the changed +codec without inflating the fixture with indentation for deeply composed +schemas. `schema_golden_test.dart` also checks that every public `*Codec` +declaration appears in that fixture. + ## How to read a fixture file Each file under `fixtures/` is one **family** (mirroring `lib/src/`), and is a @@ -86,6 +92,7 @@ is exactly `2 * math.pi` — constant arithmetic, not a libm call. ```sh UPDATE_GOLDENS=true flutter test test/golden/golden_test.dart +UPDATE_GOLDENS=true flutter test test/golden/schema_golden_test.dart ``` This rewrites every `fixtures/*.json` from the current encoders. Review the diff, diff --git a/packages/flutter_codec/test/golden/fixtures/json_schema.json b/packages/flutter_codec/test/golden/fixtures/json_schema.json new file mode 100644 index 00000000..526690c0 --- /dev/null +++ b/packages/flutter_codec/test/golden/fixtures/json_schema.json @@ -0,0 +1,104 @@ +{ + "alignmentCodec": {"x-transformed":true,"anyOf":[{"type":"string","enum":["topLeft","topCenter","topRight","centerLeft","center","centerRight","bottomLeft","bottomCenter","bottomRight"],"x-transformed":true},{"type":"object","properties":{"x":{"type":"number"},"y":{"type":"number"}},"required":["x","y"],"additionalProperties":false}]}, + "alignmentDirectionalCodec": {"x-transformed":true,"anyOf":[{"type":"string","enum":["topStart","topCenter","topEnd","centerStart","center","centerEnd","bottomStart","bottomCenter","bottomEnd"],"x-transformed":true},{"type":"object","properties":{"start":{"type":"number"},"y":{"type":"number"}},"required":["start","y"],"additionalProperties":false}]}, + "alignmentGeometryCodec": {"x-transformed":true,"anyOf":[{"type":"string","enum":["topLeft","topCenter","topRight","centerLeft","center","centerRight","bottomLeft","bottomCenter","bottomRight"],"x-transformed":true},{"type":"object","properties":{"x":{"type":"number"},"y":{"type":"number"}},"required":["x","y"],"additionalProperties":false},{"type":"string","enum":["topStart","topCenter","topEnd","centerStart","center","centerEnd","bottomStart","bottomCenter","bottomEnd"],"x-transformed":true},{"type":"object","properties":{"start":{"type":"number"},"y":{"type":"number"}},"required":["start","y"],"additionalProperties":false}]}, + "assetImageCodec": {"type":"object","properties":{"assetName":{"type":"string","minLength":1},"package":{"anyOf":[{"type":"string"},{"type":"null"}]}},"required":["assetName"],"additionalProperties":false,"x-transformed":true}, + "axisCodec": {"type":"string","enum":["horizontal","vertical"],"x-transformed":true}, + "axisDirectionCodec": {"type":"string","enum":["up","right","down","left"],"x-transformed":true}, + "beveledRectangleBorderCodec": 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+ "blendModeCodec": {"type":"string","enum":["clear","src","dst","srcOver","dstOver","srcIn","dstIn","srcOut","dstOut","srcATop","dstATop","xor","plus","modulate","screen","overlay","darken","lighten","colorDodge","colorBurn","hardLight","softLight","difference","exclusion","multiply","hue","saturation","color","luminosity"],"x-transformed":true}, + "blurStyleCodec": {"type":"string","enum":["normal","solid","outer","inner"],"x-transformed":true}, + "borderCodec": 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+ "wrapAlignmentCodec": {"type":"string","enum":["start","end","center","spaceBetween","spaceAround","spaceEvenly"],"x-transformed":true}, + "wrapCrossAlignmentCodec": {"type":"string","enum":["start","end","center"],"x-transformed":true} +} diff --git a/packages/flutter_codec/test/golden/schema_golden_test.dart b/packages/flutter_codec/test/golden/schema_golden_test.dart new file mode 100644 index 00000000..6916812b --- /dev/null +++ b/packages/flutter_codec/test/golden/schema_golden_test.dart @@ -0,0 +1,180 @@ +import 'dart:convert'; +import 'dart:io'; + +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +const _fixturePath = 'test/golden/fixtures/json_schema.json'; +final _update = Platform.environment['UPDATE_GOLDENS'] == 'true'; + +typedef _SchemaExporter = Map Function(); + +void main() { + test('schema inventory covers every public codec declaration', () { + expect(_schemaExporters.keys, unorderedEquals(_declaredPublicCodecNames())); + }); + + test('every public codec exports its recorded JSON Schema', () { + final schemas = { + for (final entry in _schemaExporters.entries) entry.key: entry.value(), + }; + final actualText = _renderSchemas(schemas); + final fixture = File(_fixturePath); + + if (_update) { + fixture.parent.createSync(recursive: true); + fixture.writeAsStringSync('$actualText\n'); + return; + } + + expect( + fixture.existsSync(), + isTrue, + reason: + 'Missing schema golden $_fixturePath. Generate it with ' + 'UPDATE_GOLDENS=true flutter test test/golden/schema_golden_test.dart', + ); + expect( + actualText, + fixture.readAsStringSync().trimRight(), + reason: + 'JSON Schema drifted. If the change is intentional, regenerate with ' + 'UPDATE_GOLDENS=true flutter test test/golden/schema_golden_test.dart.', + ); + }); +} + +String _renderSchemas(Map> schemas) { + final entries = schemas.entries.toList(growable: false); + final buffer = StringBuffer('{\n'); + + for (var index = 0; index < entries.length; index += 1) { + final entry = entries[index]; + buffer + ..write(' ${jsonEncode(entry.key)}: ${jsonEncode(entry.value)}') + ..writeln(index == entries.length - 1 ? '' : ','); + } + + return '${buffer.toString()}}'; +} + +Set _declaredPublicCodecNames() { + final declaration = RegExp(r'\b([a-z][A-Za-z0-9_]*Codec)\s*='); + + return Directory('lib') + .listSync(recursive: true) + .whereType() + .where((file) => file.path.endsWith('.dart')) + .expand( + (file) => declaration + .allMatches(file.readAsStringSync()) + .map((match) => match.group(1)!), + ) + .toSet(); +} + +final Map _schemaExporters = { + 'alignmentCodec': alignmentCodec.toJsonSchema, + 'alignmentDirectionalCodec': alignmentDirectionalCodec.toJsonSchema, + 'alignmentGeometryCodec': alignmentGeometryCodec.toJsonSchema, + 'assetImageCodec': assetImageCodec.toJsonSchema, + 'axisCodec': axisCodec.toJsonSchema, + 'axisDirectionCodec': axisDirectionCodec.toJsonSchema, + 'beveledRectangleBorderCodec': beveledRectangleBorderCodec.toJsonSchema, + 'blendModeCodec': blendModeCodec.toJsonSchema, + 'blurStyleCodec': blurStyleCodec.toJsonSchema, + 'borderCodec': borderCodec.toJsonSchema, + 'borderDirectionalCodec': borderDirectionalCodec.toJsonSchema, + 'borderRadiusCodec': borderRadiusCodec.toJsonSchema, + 'borderRadiusDirectionalCodec': borderRadiusDirectionalCodec.toJsonSchema, + 'borderRadiusGeometryCodec': borderRadiusGeometryCodec.toJsonSchema, + 'borderSideCodec': borderSideCodec.toJsonSchema, + 'borderStyleCodec': borderStyleCodec.toJsonSchema, + 'boxBorderCodec': boxBorderCodec.toJsonSchema, + 'boxConstraintsCodec': boxConstraintsCodec.toJsonSchema, + 'boxDecorationCodec': boxDecorationCodec.toJsonSchema, + 'boxFitCodec': boxFitCodec.toJsonSchema, + 'boxHeightStyleCodec': boxHeightStyleCodec.toJsonSchema, + 'boxShadowCodec': boxShadowCodec.toJsonSchema, + 'boxShapeCodec': boxShapeCodec.toJsonSchema, + 'boxWidthStyleCodec': boxWidthStyleCodec.toJsonSchema, + 'brightnessCodec': brightnessCodec.toJsonSchema, + 'circleBorderCodec': circleBorderCodec.toJsonSchema, + 'clipCodec': clipCodec.toJsonSchema, + 'colorCodec': colorCodec.toJsonSchema, + 'constraintsCodec': constraintsCodec.toJsonSchema, + 'containerWidgetCodec': containerWidgetCodec.toJsonSchema, + 'continuousRectangleBorderCodec': continuousRectangleBorderCodec.toJsonSchema, + 'crossAxisAlignmentCodec': crossAxisAlignmentCodec.toJsonSchema, + 'decorationCodec': decorationCodec.toJsonSchema, + 'decorationImageCodec': decorationImageCodec.toJsonSchema, + 'decorationPositionCodec': decorationPositionCodec.toJsonSchema, + 'dragStartBehaviorCodec': dragStartBehaviorCodec.toJsonSchema, + 'edgeInsetsCodec': edgeInsetsCodec.toJsonSchema, + 'edgeInsetsDirectionalCodec': edgeInsetsDirectionalCodec.toJsonSchema, + 'edgeInsetsGeometryCodec': edgeInsetsGeometryCodec.toJsonSchema, + 'filterQualityCodec': filterQualityCodec.toJsonSchema, + 'flexFitCodec': flexFitCodec.toJsonSchema, + 'fontFeatureCodec': fontFeatureCodec.toJsonSchema, + 'fontStyleCodec': fontStyleCodec.toJsonSchema, + 'fontVariationCodec': fontVariationCodec.toJsonSchema, + 'fontWeightCodec': fontWeightCodec.toJsonSchema, + 'gradientCodec': gradientCodec.toJsonSchema, + 'growthDirectionCodec': growthDirectionCodec.toJsonSchema, + 'hitTestBehaviorCodec': hitTestBehaviorCodec.toJsonSchema, + 'imageProviderCodec': imageProviderCodec.toJsonSchema, + 'imageRepeatCodec': imageRepeatCodec.toJsonSchema, + 'keyCodec': keyCodec.toJsonSchema, + 'linearBorderCodec': linearBorderCodec.toJsonSchema, + 'linearBorderEdgeCodec': linearBorderEdgeCodec.toJsonSchema, + 'linearGradientCodec': linearGradientCodec.toJsonSchema, + 'localeCodec': localeCodec.toJsonSchema, + 'mainAxisAlignmentCodec': mainAxisAlignmentCodec.toJsonSchema, + 'mainAxisSizeCodec': mainAxisSizeCodec.toJsonSchema, + 'materialTapTargetSizeCodec': materialTapTargetSizeCodec.toJsonSchema, + 'matrix4Codec': matrix4Codec.toJsonSchema, + 'networkImageCodec': networkImageCodec.toJsonSchema, + 'offsetCodec': offsetCodec.toJsonSchema, + 'paintingStyleCodec': paintingStyleCodec.toJsonSchema, + 'pathFillTypeCodec': pathFillTypeCodec.toJsonSchema, + 'placeholderAlignmentCodec': placeholderAlignmentCodec.toJsonSchema, + 'radialGradientCodec': radialGradientCodec.toJsonSchema, + 'radiusCodec': radiusCodec.toJsonSchema, + 'rectCodec': rectCodec.toJsonSchema, + 'roundedRectangleBorderCodec': roundedRectangleBorderCodec.toJsonSchema, + 'roundedSuperellipseBorderCodec': roundedSuperellipseBorderCodec.toJsonSchema, + 'scrollDirectionCodec': scrollDirectionCodec.toJsonSchema, + 'scrollViewKeyboardDismissBehaviorCodec': + scrollViewKeyboardDismissBehaviorCodec.toJsonSchema, + 'shadowCodec': shadowCodec.toJsonSchema, + 'shapeBorderCodec': shapeBorderCodec.toJsonSchema, + 'shapeDecorationCodec': shapeDecorationCodec.toJsonSchema, + 'stackFitCodec': stackFitCodec.toJsonSchema, + 'stadiumBorderCodec': stadiumBorderCodec.toJsonSchema, + 'starBorderCodec': starBorderCodec.toJsonSchema, + 'strokeAlignCodec': strokeAlignCodec.toJsonSchema, + 'strokeCapCodec': strokeCapCodec.toJsonSchema, + 'strokeJoinCodec': strokeJoinCodec.toJsonSchema, + 'strutStyleCodec': strutStyleCodec.toJsonSchema, + 'sweepGradientCodec': sweepGradientCodec.toJsonSchema, + 'targetPlatformCodec': targetPlatformCodec.toJsonSchema, + 'textAlignCodec': textAlignCodec.toJsonSchema, + 'textBaselineCodec': textBaselineCodec.toJsonSchema, + 'textCapitalizationCodec': textCapitalizationCodec.toJsonSchema, + 'textDecorationCodec': textDecorationCodec.toJsonSchema, + 'textDecorationStyleCodec': textDecorationStyleCodec.toJsonSchema, + 'textDirectionCodec': textDirectionCodec.toJsonSchema, + 'textHeightBehaviorCodec': textHeightBehaviorCodec.toJsonSchema, + 'textLeadingDistributionCodec': textLeadingDistributionCodec.toJsonSchema, + 'textOverflowCodec': textOverflowCodec.toJsonSchema, + 'textStyleCodec': textStyleCodec.toJsonSchema, + 'textWidgetCodec': textWidgetCodec.toJsonSchema, + 'textWidthBasisCodec': textWidthBasisCodec.toJsonSchema, + 'themeModeCodec': themeModeCodec.toJsonSchema, + 'tileModeCodec': tileModeCodec.toJsonSchema, + 'verticalDirectionCodec': verticalDirectionCodec.toJsonSchema, + 'webHtmlElementStrategyCodec': webHtmlElementStrategyCodec.toJsonSchema, + 'widgetCodec': widgetCodec.toJsonSchema, + 'wrapAlignmentCodec': wrapAlignmentCodec.toJsonSchema, + 'wrapCrossAlignmentCodec': wrapCrossAlignmentCodec.toJsonSchema, +}; diff --git a/packages/flutter_codec/test/public_api_contract_test.dart b/packages/flutter_codec/test/public_api_contract_test.dart new file mode 100644 index 00000000..4c1393ac --- /dev/null +++ b/packages/flutter_codec/test/public_api_contract_test.dart @@ -0,0 +1,27 @@ +import 'dart:convert'; + +import 'package:flutter/painting.dart'; +import 'package:flutter_codec/flutter_codec.dart'; +import 'package:flutter_test/flutter_test.dart'; + +void main() { + test('README workflow works through the public package entry point', () { + final decoration = BoxDecoration( + color: const Color(0xFF2196F3), + border: Border.all(color: const Color(0xFFFF0000), width: 2), + borderRadius: BorderRadius.circular(8), + gradient: const LinearGradient( + colors: [Color(0xFFFF0000), Color(0xFF0000FF)], + ), + ); + + final encoded = boxDecorationCodec.safeEncode(decoration); + expect(encoded.isOk, isTrue); + + final json = jsonDecode(jsonEncode(encoded.getOrNull())); + final decoded = boxDecorationCodec.safeParse(json); + + expect(decoded.getOrNull(), decoration); + expect(jsonEncode(boxDecorationCodec.toJsonSchema()), isNotEmpty); + }); +} From 0eb07cae4830920955884e2f7a9de20e33096ef7 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Mon, 20 Jul 2026 16:20:08 -0400 Subject: [PATCH 52/53] fix(flutter_codec): harden validation diagnostics --- .../flutter_codec/lib/src/strut_style.dart | 40 +++++++++++++------ .../flutter_codec/lib/src/widgets/text.dart | 7 ++++ .../test/strut_style/strut_style_test.dart | 12 ++++++ .../flutter_codec/test/widgets/text_test.dart | 12 ++++++ 4 files changed, 59 insertions(+), 12 deletions(-) diff --git a/packages/flutter_codec/lib/src/strut_style.dart b/packages/flutter_codec/lib/src/strut_style.dart index 8506daa6..30f89c62 100644 --- a/packages/flutter_codec/lib/src/strut_style.dart +++ b/packages/flutter_codec/lib/src/strut_style.dart @@ -23,18 +23,34 @@ import 'primitives/font_weight.dart' show fontWeightCodec; /// /// [StrutStyle.debugLabel] is excluded — it's debug metadata, ignored by /// [StrutStyle] equality. -final strutStyleCodec = Ack.object({ - 'fontFamily': Ack.string().nullable().optional(), - 'fontFamilyFallback': Ack.list(Ack.string()).nullable().optional(), - 'package': Ack.string().nullable().optional(), - 'fontSize': Ack.number().positive().nullable().optional(), - 'height': Ack.number().nullable().optional(), - 'leadingDistribution': textLeadingDistributionCodec.nullable().optional(), - 'leading': Ack.number().min(0).nullable().optional(), - 'fontWeight': fontWeightCodec.nullable().optional(), - 'fontStyle': fontStyleCodec.nullable().optional(), - 'forceStrutHeight': Ack.boolean().nullable().optional(), -}).codec(decode: _decodeStrutStyle, encode: _encodeStrutStyle); +final strutStyleCodec = + Ack.object({ + 'fontFamily': Ack.string().nullable().optional(), + 'fontFamilyFallback': Ack.list(Ack.string()).nullable().optional(), + 'package': Ack.string().nullable().optional(), + 'fontSize': Ack.number().positive().nullable().optional(), + 'height': Ack.number().nullable().optional(), + 'leadingDistribution': textLeadingDistributionCodec + .nullable() + .optional(), + 'leading': Ack.number().min(0).nullable().optional(), + 'fontWeight': fontWeightCodec.nullable().optional(), + 'fontStyle': fontStyleCodec.nullable().optional(), + 'forceStrutHeight': Ack.boolean().nullable().optional(), + }) + .refine( + (data) => + data['package'] == null || + data['fontFamily'] != null || + data['fontFamilyFallback'] != null, + message: + 'StrutStyle package requires fontFamily or ' + 'fontFamilyFallback.', + ) + .codec( + decode: _decodeStrutStyle, + encode: _encodeStrutStyle, + ); StrutStyle _decodeStrutStyle(JsonMap data) { return StrutStyle( diff --git a/packages/flutter_codec/lib/src/widgets/text.dart b/packages/flutter_codec/lib/src/widgets/text.dart index 68d2a115..00a948d1 100644 --- a/packages/flutter_codec/lib/src/widgets/text.dart +++ b/packages/flutter_codec/lib/src/widgets/text.dart @@ -61,6 +61,13 @@ Text _decodeText(JsonMap data) { } JsonMap _encodeText(Text value) { + if (value.textSpan != null) { + throw UnsupportedError( + 'Text.rich inline span trees are not supported by textWidgetCodec. ' + 'Use Text with plain data instead.', + ); + } + // Flutter exposes no stable public state for a [TextScaler] implementation, // so it has no portable JSON shape. Fail loudly when one is set instead of // dropping it and decoding back an unscaled [Text]. diff --git a/packages/flutter_codec/test/strut_style/strut_style_test.dart b/packages/flutter_codec/test/strut_style/strut_style_test.dart index 2e5cf261..6d6cc31d 100644 --- a/packages/flutter_codec/test/strut_style/strut_style_test.dart +++ b/packages/flutter_codec/test/strut_style/strut_style_test.dart @@ -98,6 +98,18 @@ void main() { }); group('strutStyleCodec rejects invalid input', () { + test('rejects package without a font family', () { + final result = strutStyleCodec.safeParse({'package': 'my_pkg'}); + + expect(result.isFail, isTrue); + expect( + result.getError().toString(), + contains( + 'StrutStyle package requires fontFamily or fontFamilyFallback.', + ), + ); + }); + test('rejects a non-positive fontSize', () { expect(strutStyleCodec.safeParse({'fontSize': 0}).isFail, isTrue); expect(strutStyleCodec.safeParse({'fontSize': -1}).isFail, isTrue); diff --git a/packages/flutter_codec/test/widgets/text_test.dart b/packages/flutter_codec/test/widgets/text_test.dart index 64a05009..d7d585c9 100644 --- a/packages/flutter_codec/test/widgets/text_test.dart +++ b/packages/flutter_codec/test/widgets/text_test.dart @@ -98,6 +98,18 @@ void main() { expect(result.isFail, isTrue); }); + + test('explains why Text.rich cannot be encoded', () { + final result = textWidgetCodec.safeEncode( + const Text.rich(TextSpan(text: 'hello')), + ); + + expect(result.isFail, isTrue); + expect( + result.getError().toString(), + contains('Text.rich inline span trees are not supported'), + ); + }); }); group('widgetCodec', () { From 483fb0ff0fdea446d84761a48d67115bca1fa490 Mon Sep 17 00:00:00 2001 From: Leo Farias Date: Fri, 4 Sep 2026 16:03:00 -0400 Subject: [PATCH 53/53] fix(flutter_codec): reject empty StrutStyle fallback with package Co-authored-by: Cursor --- packages/flutter_codec/CHANGELOG.md | 7 +++-- packages/flutter_codec/README.md | 3 ++- .../flutter_codec/lib/src/strut_style.dart | 20 +++++++++++--- .../flutter_codec/lib/src/widgets/widget.dart | 4 +-- .../test/strut_style/strut_style_test.dart | 26 +++++++++++++++++++ .../flutter_codec/test/widgets/text_test.dart | 17 ++++++++++++ 6 files changed, 68 insertions(+), 9 deletions(-) diff --git a/packages/flutter_codec/CHANGELOG.md b/packages/flutter_codec/CHANGELOG.md index 0d7aada4..e8f27f3a 100644 --- a/packages/flutter_codec/CHANGELOG.md +++ b/packages/flutter_codec/CHANGELOG.md @@ -5,8 +5,11 @@ - Harden codec-boundary validation for Flutter values that only assert in debug/release-unsafe code paths: recursive `Container.child` nesting is capped, `StarBorder` rejects point/valley rounding sums above `1`, gradient - stops must be within `[0, 1]` and ascending, and `TextStyle.fontSize` must be - positive. + stops must be within `[0, 1]` and ascending, `TextStyle.fontSize` must be + positive, and `StrutStyle.package` requires a `fontFamily` or a non-empty + `fontFamilyFallback` (empty fallback is treated as omitted, matching + Flutter). Encoding `Text.rich` now fails with a dedicated unsupported-span + diagnostic instead of a generic missing-`data` error. - Document that the `EdgeInsets` primitive intentionally remains permissive; widget codecs enforce non-negative inset rules where Flutter asserts them. diff --git a/packages/flutter_codec/README.md b/packages/flutter_codec/README.md index a301cb56..ad11c552 100644 --- a/packages/flutter_codec/README.md +++ b/packages/flutter_codec/README.md @@ -125,7 +125,8 @@ silently falling back. `DecorationImage` that carries one **throws** rather than silently dropping it. - **No portable JSON shape (encode throws)**: `Gradient.transform` (`GradientTransform` is an open abstract type — encoding a transformed - gradient throws rather than dropping it silently). + gradient throws rather than dropping it silently). `Text.rich` / inline + `TextSpan` trees are also rejected on encode instead of dropping the span. - **No portable JSON shape**: `Paint`, `Path`, `Shader`, `TextStyle.foreground` / `TextStyle.background`, `DecorationImage.onError`, `FlutterLogoDecoration`. diff --git a/packages/flutter_codec/lib/src/strut_style.dart b/packages/flutter_codec/lib/src/strut_style.dart index 30f89c62..37248dc8 100644 --- a/packages/flutter_codec/lib/src/strut_style.dart +++ b/packages/flutter_codec/lib/src/strut_style.dart @@ -21,6 +21,13 @@ import 'primitives/font_weight.dart' show fontWeightCodec; /// When the prefix is missing or inconsistent, `package` is emitted as /// `null` and the stored (prefixed) `fontFamily` is preserved verbatim. /// +/// [StrutStyle] asserts `package == null || (fontFamily != null || +/// fontFamilyFallback != null)`. The constructor interpolates a null +/// `fontFamily` into the literal `'packages//null'`, and Flutter +/// treats an empty fallback list as omitted, so this codec requires a +/// non-null family or a non-empty fallback when `package` is set. The +/// check is enforced here so it holds in release builds too. +/// /// [StrutStyle.debugLabel] is excluded — it's debug metadata, ignored by /// [StrutStyle] equality. final strutStyleCodec = @@ -39,10 +46,7 @@ final strutStyleCodec = 'forceStrutHeight': Ack.boolean().nullable().optional(), }) .refine( - (data) => - data['package'] == null || - data['fontFamily'] != null || - data['fontFamilyFallback'] != null, + _strutStylePackageHasFamily, message: 'StrutStyle package requires fontFamily or ' 'fontFamilyFallback.', @@ -52,6 +56,14 @@ final strutStyleCodec = encode: _encodeStrutStyle, ); +bool _strutStylePackageHasFamily(JsonMap data) { + if (data['package'] == null) return true; + if (data['fontFamily'] != null) return true; + final fallback = data['fontFamilyFallback']; + + return fallback is List && fallback.isNotEmpty; +} + StrutStyle _decodeStrutStyle(JsonMap data) { return StrutStyle( fontFamily: readNullableValue(data, 'fontFamily'), diff --git a/packages/flutter_codec/lib/src/widgets/widget.dart b/packages/flutter_codec/lib/src/widgets/widget.dart index 851ca52b..5aeb2eb4 100644 --- a/packages/flutter_codec/lib/src/widgets/widget.dart +++ b/packages/flutter_codec/lib/src/widgets/widget.dart @@ -6,8 +6,8 @@ import 'text.dart' show textWidgetCodec; /// Codec for the supported [Widget] union, discriminated by `"type"`. /// -/// The union starts with [Container]. Additional widget branches register here -/// as they gain first-class codecs. +/// Current branches are [Container] (`"container"`) and [Text] (`"text"`). +/// Additional widget branches register here as they gain first-class codecs. final DiscriminatedObjectSchema widgetCodec = Ack.discriminated( discriminatorKey: 'type', schemas: {'container': containerWidgetCodec, 'text': textWidgetCodec}, diff --git a/packages/flutter_codec/test/strut_style/strut_style_test.dart b/packages/flutter_codec/test/strut_style/strut_style_test.dart index 6d6cc31d..3c7d6f3f 100644 --- a/packages/flutter_codec/test/strut_style/strut_style_test.dart +++ b/packages/flutter_codec/test/strut_style/strut_style_test.dart @@ -45,6 +45,15 @@ void main() { // StrutStyle's constructor folds package into fontFamily. expect(decoded!.fontFamily, 'packages/my_pkg/Roboto'); }); + + test('decodes package with only fontFamilyFallback', () { + final decoded = strutStyleCodec.parse({ + 'package': 'my_pkg', + 'fontFamilyFallback': ['Roboto'], + }); + + expect(decoded!.fontFamilyFallback, ['packages/my_pkg/Roboto']); + }); }); group('strutStyleCodec encode', () { @@ -110,6 +119,23 @@ void main() { ); }); + test('rejects package with an empty fontFamilyFallback', () { + // Flutter treats an empty fallback list as omitted, and still interpolates + // a null fontFamily into the literal 'packages//null'. + final result = strutStyleCodec.safeParse({ + 'package': 'my_pkg', + 'fontFamilyFallback': [], + }); + + expect(result.isFail, isTrue); + expect( + result.getError().toString(), + contains( + 'StrutStyle package requires fontFamily or fontFamilyFallback.', + ), + ); + }); + test('rejects a non-positive fontSize', () { expect(strutStyleCodec.safeParse({'fontSize': 0}).isFail, isTrue); expect(strutStyleCodec.safeParse({'fontSize': -1}).isFail, isTrue); diff --git a/packages/flutter_codec/test/widgets/text_test.dart b/packages/flutter_codec/test/widgets/text_test.dart index d7d585c9..bcd84fef 100644 --- a/packages/flutter_codec/test/widgets/text_test.dart +++ b/packages/flutter_codec/test/widgets/text_test.dart @@ -1,3 +1,4 @@ +import 'package:ack/ack.dart' show SchemaNestedError; import 'package:flutter/widgets.dart'; import 'package:flutter_codec/flutter_codec.dart'; import 'package:flutter_test/flutter_test.dart'; @@ -110,6 +111,22 @@ void main() { contains('Text.rich inline span trees are not supported'), ); }); + + test('widgetCodec keeps the Text.rich diagnostic', () { + final result = widgetCodec.safeEncode( + const Text.rich(TextSpan(text: 'hello')), + ); + + expect(result.isFail, isTrue); + final error = result.getError(); + expect(error, isA()); + expect( + (error as SchemaNestedError).errors + .map((nested) => nested.toString()) + .join('\n'), + contains('Text.rich inline span trees are not supported'), + ); + }); }); group('widgetCodec', () {