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fix: annotate asm.js integer return type - #230
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Justineo
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…2.3.2 in /studio [skip ci] Bumps [es-module-lexer](https://github.com/guybedford/es-module-lexer) from 2.3.1 to 2.3.2. Release notes *Sourced from [es-module-lexer's releases](https://github.com/guybedford/es-module-lexer/releases).* > 2.3.2 > ----- > > What's Changed > -------------- > > * perf(lexer): skip identifier and number runs by [`@BridgeAR`](https://github.com/BridgeAR) in [guybedford/es-module-lexer#227](https://redirect.github.com/guybedford/es-module-lexer/pull/227) > * fix: annotate asm.js integer return type by [`@Justineo`](https://github.com/Justineo) in [guybedford/es-module-lexer#230](https://redirect.github.com/guybedford/es-module-lexer/pull/230) > * Add side effects to package.json by [`@denisx`](https://github.com/denisx) in [guybedford/es-module-lexer#183](https://redirect.github.com/guybedford/es-module-lexer/pull/183) > * fix: forward the sourcename through the pre-init parse path by [`@hdimer`](https://github.com/hdimer) in [guybedford/es-module-lexer#236](https://redirect.github.com/guybedford/es-module-lexer/pull/236) > > New Contributors > ---------------- > > * [`@Justineo`](https://github.com/Justineo) made their first contribution in [guybedford/es-module-lexer#230](https://redirect.github.com/guybedford/es-module-lexer/pull/230) > * [`@denisx`](https://github.com/denisx) made their first contribution in [guybedford/es-module-lexer#183](https://redirect.github.com/guybedford/es-module-lexer/pull/183) > * [`@hdimer`](https://github.com/hdimer) made their first contribution in [guybedford/es-module-lexer#236](https://redirect.github.com/guybedford/es-module-lexer/pull/236) > > **Full Changelog**: <guybedford/es-module-lexer@2.3.1...2.3.2> Commits * [`08ee1be`](guybedford/es-module-lexer@08ee1be) fix: forward the sourcename through the pre-init parse path ([#236](https://redirect.github.com/guybedford/es-module-lexer/issues/236)) * [`5a824a1`](guybedford/es-module-lexer@5a824a1) Update package.json ([#183](https://redirect.github.com/guybedford/es-module-lexer/issues/183)) * [`8274d03`](guybedford/es-module-lexer@8274d03) fix: annotate asm.js integer return type ([#230](https://redirect.github.com/guybedford/es-module-lexer/issues/230)) * [`2abc49e`](guybedford/es-module-lexer@2abc49e) perf(lexer): skip identifier and number runs ([#227](https://redirect.github.com/guybedford/es-module-lexer/issues/227)) * See full diff in [compare view](guybedford/es-module-lexer@2.3.1...2.3.2) [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- Dependabot commands and options You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
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AI disclosure — Codex, GPT-5.6 Sol (Extra High)
This PR was researched, implemented, tested, and drafted by Codex. I provided the requirements, requested alignment with project conventions, and approved publication.
Codex was asked to:
Codex reviewed the build history, asm.js rules, and V8 behavior; changed
return btoreturn b | 0; and added an explicit asm.js validation test.Validation covered published versions 2.0.0–2.3.1, Node 16–25, full and minimal bundles, and behavior comparison across 20 source files. The complete
chomp testmatrix is pending CI approval.Summary
Since 2.2.0, invoking the
es-module-lexer/jsbuild under V8 emits:The bundle remains valid JavaScript, so V8 falls back to normal JavaScript compilation and parsing still succeeds. This allows the existing functional tests to pass while the asm.js module itself fails validation.
The regression was introduced by #203. Its injected allocator helper returns an integer parameter without the result coercion required by asm.js:
Returning
bis the intended behavior; only its asm.js return type annotation is missing.Changes
return b | 0The additional coercion does not change runtime behavior because
bhas already been converted withb = b | 0.Test plan
chomp testmatrix in CI with the Emscripten and Fastcomp toolchains