Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 131ab02a49787e17a714c936056d84e56682b749
https://github.com/WebKit/WebKit/commit/131ab02a49787e17a714c936056d84e56682b749
Author: Devin Rousso <[email protected]>
Date: 2025-08-09 (Sat, 09 Aug 2025)
Changed paths:
A JSTests/stress/iterator-prototype-sliding.js
M Source/JavaScriptCore/builtins/JSIteratorPrototype.js
M Source/JavaScriptCore/runtime/JSIteratorPrototype.cpp
Log Message:
-----------
[JSC] add support for `Iterator.prototype.sliding`
https://bugs.webkit.org/show_bug.cgi?id=297163
Reviewed by Yusuke Suzuki.
If the number given to `Iterator.prototype.windows` is larger than the number
of items in the iterator, the resulting resulting "window" will be empty.
```js
([ 1, 2, 3 ]).values().windows(5) // [ ]
```
Instead using `Iterator.prototype.sliding` it would contain all of the items.
```js
([ 1, 2, 3 ]).values().windows(5) // [ 1, 2, 3 ]
```
Other than that one difference, `Iterator.prototype.sliding` has the same
behavior as `Iterator.prototype.windows`.
* Source/JavaScriptCore/builtins/JSIteratorPrototype.js:
(sliding): Added.
* Source/JavaScriptCore/runtime/JSIteratorPrototype.cpp:
(JSC::JSIteratorPrototype::finishCreation):
* JSTests/stress/iterator-prototype-sliding.js: Added.
Canonical link: https://commits.webkit.org/298471@main
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