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rose-ash/lib/js/test262-scoreboard.md
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js-on-sx: raise JS TypeError for non-callable callee, undefined()
Calling a non-callable raised an OCaml-level Eval_error "Not callable"
that JS try/catch couldn't intercept. Added a (js-function? callable)
precheck in js-apply-fn that raises a TypeError instance via
(js-new-call TypeError (list msg)) so e instanceof TypeError is
true. Same swap for the undefined() branch in js-call-plain (was
raising a bare string). built-ins/String: 71/99 → 73/99 (canonical),
74/99 → 75/99 (isolated). conformance.sh: 148/148.
2026-05-07 15:58:16 +00:00

893 B

test262 scoreboard

Pinned commit: d5e73fc8d2c663554fb72e2380a8c2bc1a318a33 Wall time: 280.3s

Total: 73/99 runnable passed (73.7%). Raw: pass=73 fail=20 skip=1 timeout=6 total=100.

Top failure modes

  • 10x Test262Error (assertion failed)
  • 8x TypeError: not a function
  • 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 73 20 1 6 100 73.7%

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

built-ins/String (73/99 — 73.7%)

  • 10x Test262Error (assertion failed)
  • 8x TypeError: not a function
  • 6x Timeout
  • 1x ReferenceError (undefined symbol)
  • 1x SyntaxError (parse/unsupported syntax)