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rose-ash/lib/js/test262-scoreboard.md
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js-on-sx: scope var defines + js-args for call args
JS top-level var was emitting (define <name> X) at SX top level,
permanently rebinding any SX primitive of that name (e.g. var list
= X broke (list ...) globally). Two-part fix:
1. wrap transpiled program in (let () ...) in js-eval so defines
   scope to the eval and don't leak.
2. rename call-args constructor in js-transpile-args from list to
   js-args (a variadic alias) so even within the eval's own scope,
   JS vars named list don't shadow arg construction.
Array-literal transpile keeps list (arrays must be mutable).
built-ins/Object: 41/50 → 42/50. conformance.sh: 148/148.
2026-05-07 23:55:07 +00:00

823 B

test262 scoreboard

Pinned commit: d5e73fc8d2c663554fb72e2380a8c2bc1a318a33 Wall time: 486.8s

Total: 77/99 runnable passed (77.8%). Raw: pass=77 fail=15 skip=1 timeout=7 total=100.

Top failure modes

  • 13x Test262Error (assertion failed)
  • 7x 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 77 15 1 7 100 77.8%

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

built-ins/String (77/99 — 77.8%)

  • 13x Test262Error (assertion failed)
  • 7x Timeout
  • 1x ReferenceError (undefined symbol)
  • 1x SyntaxError (parse/unsupported syntax)