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js-on-sx: String fixes — fromCodePoint, multi-arg indexOf/split/lastIndexOf, matchAll, constructor, js-to-string dict
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- String.fromCodePoint added (BMP + surrogate pairs)
- indexOf/lastIndexOf/split now accept optional second argument (fromIndex / limit)
- matchAll stub added to js-string-method and String.prototype
- String property else-branch now falls back to String.prototype (fixes 'a'.constructor === String)
- js-to-string for dict returns [object Object] instead of recursing into circular String.prototype.constructor structure
- js-list-take helper added for split limit

Scoreboard: String 42→43, timeouts 32→13, total 162→202/300 (54%→67.3%). 529/530 unit, 148/148 slice.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
giles
2026-04-25 13:41:58 +00:00
parent 70f91ef3d8
commit 80c21cbabb
4 changed files with 144 additions and 71 deletions
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43
lib/js/test262-scoreboard.md
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@@ -1,47 +1,44 @@
# test262 scoreboard
Pinned commit: `d5e73fc8d2c663554fb72e2380a8c2bc1a318a33`
Wall time: 274.5s
Wall time: 102.4s
**Total:** 162/300 runnable passed (54.0%). Raw: pass=162 fail=128 skip=1597 timeout=10 total=1897.
**Total:** 202/300 runnable passed (67.3%). Raw: pass=202 fail=85 skip=1597 timeout=13 total=1897.
## Top failure modes
- **83x** Test262Error (assertion failed)
- **36x** TypeError: not a function
- **10x** Timeout
- **2x** ReferenceError (undefined symbol)
- **2x** Unhandled: Not callable: {:__proto__ {:toLowerCase <lambda(&rest, args)
- **2x** Unhandled: Not callable: \\\
- **78x** Test262Error (assertion failed)
- **13x** Timeout
- **3x** TypeError: not a function
- **1x** ReferenceError (undefined symbol)
- **1x** SyntaxError (parse/unsupported syntax)
- **1x** Unhandled: Not callable: {:__proto__ {:valueOf <lambda()> :propertyIsEn
- **1x** Unhandled: Not callable: \\\
- **1x** Unhandled: js-transpile-binop: unsupported op: >>>\
## Categories (worst pass-rate first, min 10 runnable)
| Category | Pass | Fail | Skip | Timeout | Total | Pass % |
|---|---:|---:|---:|---:|---:|---:|
| built-ins/String | 42 | 53 | 1123 | 5 | 1223 | 42.0% |
| built-ins/Math | 43 | 56 | 227 | 1 | 327 | 43.0% |
| built-ins/String | 43 | 49 | 1123 | 8 | 1223 | 43.0% |
| built-ins/Number | 77 | 19 | 240 | 4 | 340 | 77.0% |
| built-ins/Math | 82 | 17 | 227 | 1 | 327 | 82.0% |
## Per-category top failures (min 10 runnable, worst first)
### built-ins/String (42/100 — 42.0%)
### built-ins/String (43/100 — 43.0%)
- **44x** Test262Error (assertion failed)
- **5x** Timeout
- **2x** ReferenceError (undefined symbol)
- **2x** Unhandled: Not callable: {:__proto__ {:toLowerCase <lambda(&rest, args)
- **2x** Unhandled: Not callable: \\\
### built-ins/Math (43/100 — 43.0%)
- **36x** TypeError: not a function
- **20x** Test262Error (assertion failed)
- **1x** Timeout
- **42x** Test262Error (assertion failed)
- **8x** Timeout
- **3x** TypeError: not a function
- **1x** ReferenceError (undefined symbol)
- **1x** SyntaxError (parse/unsupported syntax)
### built-ins/Number (77/100 — 77.0%)
- **19x** Test262Error (assertion failed)
- **4x** Timeout
### built-ins/Math (82/100 — 82.0%)
- **17x** Test262Error (assertion failed)
- **1x** Timeout