conditional remove webwokers during compilation

Author: veronicaz41

package-lock.json

@@ -42,6 +42,7 @@
     "chai": "^4.2.0",
     "eslint": "^8.0.1",
     "mocha": "^8.2.1",
-    "rollup": "^2.38.5"
+    "rollup": "^2.38.5",
+    "rollup-plugin-jscc": "^2.0.0"
   }
 }

package.json

@@ -1,5 +1,6 @@
 import fs from "fs";
 import { builtinModules as builtin } from "module";
+import jscc from 'rollup-plugin-jscc'
 
 const pkg = JSON.parse(fs.readFileSync("./package.json"));
 
@@ -12,5 +13,10 @@ export default {
     external: [
         ...Object.keys(pkg.dependencies),
         ...builtin,
-    ]
+    ],
+    plugins: [
+      jscc({
+          values: { _SES: process.env.SES },
+      })
+    ],
 };

rollup.cjs.config.js

@@ -24,7 +24,11 @@ const MEM_SIZE = 25;  // Memory size in 64K Pakes (1600Kb)
 
 import thread from "./threadman_thread.js";
 import os from "os";
+
+/*#if _SES
+//#else */
 import Worker from "web-worker";
+//#endif
 
 class Deferred {
     constructor() {
@@ -81,7 +85,10 @@ export default async function buildThreadManager(wasm, singleThread) {
     //    tm.pTmp1 = tm.alloc(curve.G2.F.n8*3);
 
 
+/*#if _SES
+//#else */
     if (singleThread) {
+//#endif
         tm.code = wasm.code;
         tm.taskManager = thread();
         await tm.taskManager([{
@@ -90,6 +97,8 @@ export default async function buildThreadManager(wasm, singleThread) {
             code: tm.code.slice()
         }]);
         tm.concurrency  = 1;
+/*#if _SES
+//#else */
     } else {
         tm.workers = [];
         tm.pendingDeferreds = [];
@@ -133,6 +142,8 @@ export default async function buildThreadManager(wasm, singleThread) {
         await Promise.all(initPromises);
 
     }
+//#endif
+
     return tm;
 
     function getOnMsg(i) {