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merge queue: checking main (4299cdf), #677, #678 and #679 together - #686

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merge queue: checking main (4299cdf), #677, #678 and #679 together#686
mergify[bot] wants to merge 7 commits into
mainfrom
mergify/merge-queue/d88e603e88

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@mergify mergify Bot commented Aug 5, 2026

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🎉 This pull request has been checked successfully and will be merged soon. 🎉

Branch main (4299cdf), #677, #678 and #679 are queued together for merge.

This pull request has been created by Mergify to speculatively check the mergeability of #679.
You don't need to do anything. Mergify will close this pull request automatically when it is complete.

Required conditions of queue rule default for merge:

Required conditions to stay in the queue:

---
checking_base_sha: 1192470b19a2a334c215c4d595349af6aff2ed7f
previous_check_retries: []
previous_failed_batches: []
pull_requests:
  - number: 679
    scopes: []
scopes: []
...

jd and others added 7 commits August 5, 2026 17:38
`on.pull_request.branches` filters on the *base* branch, not the head. With
it pinned to `main`, only a pull request merging directly into `main` ran
CI -- every stacked pull request, whose base is the branch below it in the
stack, got no test, lint or mypy run at all and showed nothing but the
Mergify checks.

Drop the filter so CI runs for every pull request regardless of base.

Change-Id: I1c211a106a57b9f4986bec4b76c0680c1a0f1b61
`__radd__` was annotated `other: wait_base`, which is the one type it can
never receive: `wait_base.__add__` always succeeds, so Python never falls
back to the reflected operator for two wait strategies. The only caller is
`sum()`, which seeds its accumulator with the int 0 — hence the
`type: ignore[comparison-overlap]` on `other == 0`, and the dead
`return self` branch behind it that `--warn-unreachable` flags.

Annotate the parameter as `int` and return `NotImplemented` for a non-zero
left operand, so `5 + wait_fixed(1)` raises `TypeError` at the addition
rather than building a `wait_combine` that explodes later when called.

With the signature corrected, mypy infers `sum([...])` over wait strategies
on its own, so four `type: ignore[list-item]` comments in
`test_wait_arbitrary_sum` are no longer needed.

Change-Id: Iad1bcef4412d6afc1a6f1335970cfbfcc4a34fcb
`strict = true` is a curated subset, not every check mypy has. These five
error codes and three flags are all off under `strict` and all report zero
errors on the current tree, so turning them on costs nothing today and
catches regressions from here on:

- `warn_unreachable` -- dead branches, which are usually a wrong annotation
  rather than dead code (see the `wait_base.__radd__` fix below this commit)
- `disallow_any_unimported` -- silent `Any` leaking in from untyped deps
- `extra_checks` -- unsafely overlapping operator signatures, among others
- `ignore-without-code` -- keeps `type: ignore` comments specific
- `redundant-expr`, `truthy-iterable`, `unused-awaitable`, `exhaustive-match`

Deliberately left off: `disallow_any_expr` (655 errors -- unusable for a
decorator library) and `disallow_any_decorated` (63 errors, all inherent to
`@retry` wrapping untyped test helpers).

Change-Id: I9eee43a749050d2bcf0aa0abbedf8725301eba18
`truthy-bool` reports objects tested for truthiness that implement neither
`__bool__` nor `__len__`, and so can only ever be true. Three sites:

`BaseRetrying._run_wait` and `AsyncRetrying._run_wait` both guarded the
wait call with `if self.wait:`. `wait` is typed `WaitBaseT` and defaults to
a `wait_none()` instance, so it is never falsy and the `sleep = 0.0` branch
has been dead since 17aefd9 -- a leftover from when the surrounding code
still used `if self.after is not None:` style guards. Call `self.wait`
unconditionally.

`if tornado:` guarded the optional import in two places. mypy only ever
sees the `try` branch, so it resolves the name to the module and reads the
test as always-true. Compute `_HAS_TORNADO` once and branch on that
instead; this also keeps `tornado.gen` fully typed, which annotating the
name as `ModuleType | None` would have thrown away.

Change-Id: Icb9981f6797707e070dc2423015f2fbf6c94e4c4
@mergify mergify Bot closed this Aug 5, 2026
@mergify
mergify Bot deleted the mergify/merge-queue/d88e603e88 branch August 5, 2026 15:43
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