Reintroduce JavaScript transpiled backend with Tongues 0.2.4#413
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Reintroduce JavaScript transpiled backend with Tongues 0.2.4#413
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Homebrew setup + install was taking ~2 minutes in CI. Replace with two curl calls to fetch the pre-built JS from the v0.2.3 GitHub release.
GitHub Actions runner doesn't have write access to /usr/local.
Reintroduce transpiled backend testing after the move from the in-tree transpiler to Tongues. Adds test harnesses for JavaScript, Python, Java, Perl, and Ruby under tests/transpiled/, with a `just lang <target>` recipe that transpiles via Tongues with source-hash caching.
ldayton
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- Add lang-dev target that transpiles using local Tongues source - Extract _run-lang-tests to share test runner between lang and lang-dev - Fix toSexp -> to_sexp in JS test harness (Tongues preserves snake_case) - Set VIRTUAL_ENV="" to suppress uv warning
This was referenced Mar 22, 2026
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ldayton
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Summary
tests/transpiled/just lang <target>recipe with source-hash caching to transpile and testMatchedPairErroras parse errorJavaScript passes all 4574 tests end-to-end via Tongues 0.2.4. The other backends (Perl, Ruby, Java) have remaining Tongues codegen issues tracked in ldayton/Tongues.
Closes #414