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HS add/append: Set dedup, @attr support, when-clause result tracking

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- runtime hs-add-to!/hs-append: dedupe on list targets (Set semantics)
- compiler emit-set: set result to X now syncs it too
- compiler append!: handle (local)/(ref) targets via emit-set so scoped
  vars get rebound to the returned list
- parser add/remove: accept bare @attr (not just [@attr])
- parser add-attr: support when-clause → emits add-attr-when
- compiler add-class-when/add-attr-when: collect matched items into
  the-result / it so subsequent "if the result is empty" works

+6 upstream tests in early range (add 13→17, append 10→12).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
giles
2026-04-23 19:55:27 +00:00
parent 9e568ad886
commit 1613f551ef
4 changed files with 611 additions and 325 deletions
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lib/js/test262-scoreboard.md
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# test262 scoreboard
Pinned commit: `d5e73fc8d2c663554fb72e2380a8c2bc1a318a33`
Wall time: 185.3s
**Total:** 0/8 passed (0.0%), 1 failed, 0 skipped, 7 timeouts.
**Total:** 56/288 runnable passed (19.4%). Raw: pass=56 fail=230 skip=39 timeout=2 total=327.
## Top failure modes
- **1x** SyntaxError (parse/unsupported syntax)
- **83x** Test262Error (assertion failed)
- **62x** ReferenceError (undefined symbol)
- **46x** TypeError: not a function
- **35x** SyntaxError (parse/unsupported syntax)
- **3x** Unhandled: Unexpected token: op '++'\
- **2x** Timeout
- **1x** Unhandled: Not callable: {:random <js-math-random()> :floor <js-math-fl
## Categories (worst pass-rate first)
## Categories (worst pass-rate first, min 10 runnable)
| Category | Pass | Fail | Skip | Timeout | Total | Pass % |
|---|---:|---:|---:|---:|---:|---:|
| built-ins/Math | 0 | 1 | 0 | 7 | 8 | 0.0% |
| built-ins/Math | 56 | 230 | 39 | 2 | 327 | 19.4% |
## Per-category top failures
## Per-category top failures (min 10 runnable, worst first)
### built-ins/Math
### built-ins/Math (56/288 — 19.4%)
- **1x** SyntaxError (parse/unsupported syntax)
- **83x** Test262Error (assertion failed)
- **62x** ReferenceError (undefined symbol)
- **46x** TypeError: not a function
- **35x** SyntaxError (parse/unsupported syntax)
- **3x** Unhandled: Unexpected token: op '++'\