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LibWeb: Don't get stuck in TreeWalker.nextNode() when current detached

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This fixes a hang on https://reddit.com/

Spec bug: https://github.com/whatwg/dom/issues/1102
This commit is contained in:
Andreas Kling 2023-12-03 21:27:51 +01:00
parent f93cab7679
commit dbca63a1db
3 changed files with 21 additions and 0 deletions
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1
Tests/LibWeb/Text/expected/DOM/TreeWalker-nextNode-with-detached-currentNode.txt Normal file
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@ -0,0 +1 @@
PASS (Didn't get stuck)

13
Tests/LibWeb/Text/input/DOM/TreeWalker-nextNode-with-detached-currentNode.html Normal file
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<script src="../include.js"></script>
<script>
test(() => {
const fragment = document.createDocumentFragment();
fragment.appendChild(document.createTextNode("hello"));
const walker = document.createTreeWalker(document, 0);
walker.currentNode = fragment;
walker.nextNode();
println("PASS (Didn't get stuck)");
});
</script>