Commit Graph

1 Commits

Author SHA1 Message Date
Kaoru0822 acca91d22b fix(javascript): keep members unknown after a write through a local setter (#3831)
* fix(javascript): keep members unknown after a write through a local setter

Assigning to a key that a setter of the binding's own object literal
defines runs that setter, which may replace any member of its receiver.
The member-mutation collector recorded it as an ordinary write to that
one key, so sibling literals such as value: 1 stayed known and
export-shape comparisons reported complete, unchanged shapes.

Record such a write with an unknown key, which invalidates the object's
known members. A computed setter key may match any written key.

Fixes #3312

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(javascript): follow nested setters, skip deletes and cache setter keys

Resolve the written receiver along nested object-literal members so a
write through a nested setter widens that receiver's members. A delete
never calls a setter, so it keeps its exact path. Setter keys are
computed once per object literal, including the no-setter result.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(javascript): ignore setters replaced by a later data property

Build cached setter keys from the effective definitions: a later data
property or method with the same static name replaces the accessor, so
assigning that key no longer runs a setter.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-14 21:39:39 -07:00