worker: implement `MessagePort` and `MessageChannel`

Implement `MessagePort` and `MessageChannel` along the lines of
the DOM classes of the same names. `MessagePort`s initially
support transferring only `ArrayBuffer`s.

Thanks to Stephen Belanger for reviewing this change in its
original form, to Benjamin Gruenbaum for reviewing the
added tests in their original form, and to Olivia Hugger
for reviewing the documentation in its original form.

Refs: https://github.com/ayojs/ayo/pull/98

PR-URL: https://github.com/nodejs/node/pull/20876
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Shingo Inoue <leko.noor@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: John-David Dalton <john.david.dalton@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/internal/modules/cjs/helpers.js b/lib/internal/modules/cjs/helpers.js
index 60346c5841..55eaed7d37 100644
--- a/lib/internal/modules/cjs/helpers.js
+++ b/lib/internal/modules/cjs/helpers.js
@@ -105,6 +105,11 @@ const builtinLibs = [
   'v8', 'vm', 'zlib'
 ];
 
+if (process.binding('config').experimentalWorker) {
+  builtinLibs.push('worker');
+  builtinLibs.sort();
+}
+
 if (typeof process.binding('inspector').open === 'function') {
   builtinLibs.push('inspector');
   builtinLibs.sort();