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rose-ash/lib/js/test262-scoreboard.md
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js-on-sx: js-new-call accepts list-typed constructor returns
new Array(1,2,3) was returning an empty wrapper object because
js-new-call only honoured a non-undefined return when
(type-of ret) === "dict"; SX lists (representing JS arrays) were
silently discarded. Widened the check to accept "list" too.
Fixes new Array(1,2,3).length, String(new Array(1,2,3)), and any
constructor whose body returns a list. built-ins/String:
67/99 → 69/99 (canonical). conformance.sh: 148/148.
2026-05-07 14:24:52 +00:00

921 B

test262 scoreboard

Pinned commit: d5e73fc8d2c663554fb72e2380a8c2bc1a318a33 Wall time: 344.4s

Total: 69/99 runnable passed (69.7%). Raw: pass=69 fail=24 skip=1 timeout=6 total=100.

Top failure modes

  • 12x Test262Error (assertion failed)
  • 8x TypeError: not a function
  • 6x Timeout
  • 2x Unhandled: Not callable: \\
  • 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 69 24 1 6 100 69.7%

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

built-ins/String (69/99 — 69.7%)

  • 12x Test262Error (assertion failed)
  • 8x TypeError: not a function
  • 6x Timeout
  • 2x Unhandled: Not callable: \\
  • 1x ReferenceError (undefined symbol)