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LibWeb: Preserve order of HTMLCollection property names

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The supported property names should be ordered in "tree order", though
m_cached_name_to_element_mappings doesn't preserve this ordering, which
breaks Object.getOwnPropertyNames.

Fixes at least the following WPT tests:
 - https://wpt.live/dom/nodes/Element-children.html
 - https://wpt.live/dom/collections/HTMLCollection-live-mutations.window.html
 - https://wpt.live/dom/collections/HTMLCollection-supported-property-names.html
This commit is contained in:
scorpion-26 2024-10-03 23:12:15 +02:00 • committed by Tim Ledbetter
commit d00adabc3c
Notes: github-actions[bot] 2024-10-04 21:44:52 +00:00
4 changed files with 13 additions and 2 deletions
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2
Userland/Libraries/LibWeb/DOM/HTMLCollection.h
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@ -61,7 +61,7 @@ private:
mutable u64 m_cached_dom_tree_version { 0 };
mutable Vector<JS::NonnullGCPtr<Element>> m_cached_elements;
mutable OwnPtr<HashMap<FlyString, JS::NonnullGCPtr<Element>>> m_cached_name_to_element_mappings;
mutable OwnPtr<OrderedHashMap<FlyString, JS::NonnullGCPtr<Element>>> m_cached_name_to_element_mappings;
JS::NonnullGCPtr<ParentNode> m_root;
Function<bool(Element const&)> m_filter;