Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: e2cc521c373c50c6048391237658c08a00973f35
https://github.com/WebKit/WebKit/commit/e2cc521c373c50c6048391237658c08a00973f35
Author: Devin Rousso <h...@devinrousso.com>
Date: 2024-10-22 (Tue, 22 Oct 2024)
Changed paths:
A JSTests/stress/iterator-concat.js
M Source/JavaScriptCore/builtins/JSIteratorConstructor.js
M Source/JavaScriptCore/builtins/JSIteratorHelperPrototype.js
M Source/JavaScriptCore/runtime/JSIteratorConstructor.cpp
M Source/JavaScriptCore/runtime/OptionsList.h
Log Message:
-----------
[JSC] add support for `Iterator.concat`
https://bugs.webkit.org/show_bug.cgi?id=281109
Reviewed by Alexey Shvayka.
This will allow for easier composition of iterators instead of having to
manually create a generator or spread into an array.
Proposal: <https://github.com/tc39/proposal-iterator-sequencing>
Spec: <https://tc39.es/proposal-iterator-sequencing/>
* Source/JavaScriptCore/builtins/JSIteratorConstructor.js:
(concat): Added.
* Source/JavaScriptCore/runtime/JSIteratorConstructor.cpp:
(JSC::JSIteratorConstructor::finishCreation):
* Source/JavaScriptCore/runtime/OptionsList.h:
* Source/JavaScriptCore/builtins/JSIteratorHelperPrototype.js:
(return):
Check if the `UnderlyingIterator` is null (in the case of `Iterator.concat`)
before attempting to close it.
* JSTests/stress/iterator-concat.js: Added.
Canonical link: https://commits.webkit.org/285587@main
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