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Normative: When TA.copyWithin argument handling shrinks TA, use whatever elements still fit #3619

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...regardless of copy direction

Fixes #3618

This aligns the spec with implementation reality.

…ver elements still fit

...regardless of copy direction

Fixes tc39#3618

This aligns the spec with implementation reality.
@gibson042 gibson042 added normative change Affects behavior required to correctly evaluate some ECMAScript source text needs consensus This needs committee consensus before it can be eligible to be merged. web reality labels Jun 8, 2025
@michaelficarra michaelficarra added the needs test262 tests The proposal should specify how to test an implementation. Ideally via github.com/tc39/test262 label Jul 21, 2025
gibson042 added a commit to gibson042/test262 that referenced this pull request Jul 28, 2025
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This reached consensus in plenary today. Test262 PR: tc39/test262#4550

@ljharb ljharb added has consensus This has committee consensus. and removed needs consensus This needs committee consensus before it can be eligible to be merged. labels Jul 28, 2025
Ms2ger pushed a commit to tc39/test262 that referenced this pull request Jul 29, 2025
@michaelficarra michaelficarra added has test262 tests and removed needs test262 tests The proposal should specify how to test an implementation. Ideally via github.com/tc39/test262 labels Jul 29, 2025
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TypedArray copyWithin spec text inconsistently responds to midstream shrinking
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