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rose-ash/lib/js/test262-scoreboard.md
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js-on-sx: hoist var across nested blocks; var-decls become set!
JS var is function-scoped, but the transpiler only collected
top-level vars and re-emitted (define) everywhere; for-body var
shadowed the outer (un-hoisted) scope. Three-part fix:
1. js-collect-var-names recurses into js-block/js-for/js-while
   /js-do-while/js-if/js-try/js-switch/js-for-of-in;
2. var-kind decls emit (set! ...) instead of (define ...) since
   the binding is already created at function scope;
3. js-block uses js-transpile-stmt-list (no re-hoist) instead of
   js-transpile-stmts.
built-ins/Array: 17/45 → 18/45, String: 77/99 → 78/99.
conformance.sh: 148/148.
2026-05-08 02:21:54 +00:00

823 B

test262 scoreboard

Pinned commit: d5e73fc8d2c663554fb72e2380a8c2bc1a318a33 Wall time: 224.9s

Total: 78/99 runnable passed (78.8%). Raw: pass=78 fail=15 skip=1 timeout=6 total=100.

Top failure modes

  • 13x Test262Error (assertion failed)
  • 6x Timeout
  • 1x ReferenceError (undefined symbol)
  • 1x SyntaxError (parse/unsupported syntax)

Categories (worst pass-rate first, min 10 runnable)

Category Pass Fail Skip Timeout Total Pass %
built-ins/String 78 15 1 6 100 78.8%

Per-category top failures (min 10 runnable, worst first)

built-ins/String (78/99 — 78.8%)

  • 13x Test262Error (assertion failed)
  • 6x Timeout
  • 1x ReferenceError (undefined symbol)
  • 1x SyntaxError (parse/unsupported syntax)