Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: e1fa24db3dc2789962e9100810cd93ff2304ab2a
https://github.com/WebKit/WebKit/commit/e1fa24db3dc2789962e9100810cd93ff2304ab2a
Author: Alexey Shvayka <[email protected]>
Date: 2023-10-18 (Wed, 18 Oct 2023)
Changed paths:
M LayoutTests/js/parser-syntax-check-expected.txt
M LayoutTests/js/script-tests/parser-syntax-check.js
M Source/JavaScriptCore/parser/Parser.cpp
Log Message:
-----------
[JSC] Escaped contextual keywords should be allowed as label identifiers
https://bugs.webkit.org/show_bug.cgi?id=263307
<rdar://problem/117118507>
Reviewed by Ross Kirsling.
This change aligns parseExpressionOrLabelStatement() call site in
parseStatement() with the one in
parseStatementListItem() to be invoked for escaped contextual keywords,
allowing escaped `let`, `yield`,
and `await` keywords to be used as label identifiers in single-statement
context as per spec [1].
Aligns JSC with V8 and SpiderMonkey.
[1]: https://tc39.es/ecma262/#prod-LabelIdentifier
* LayoutTests/js/parser-syntax-check-expected.txt:
* LayoutTests/js/script-tests/parser-syntax-check.js:
* Source/JavaScriptCore/parser/Parser.cpp:
(JSC::Parser<LexerType>::parseStatement):
Canonical link: https://commits.webkit.org/269495@main
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