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LibWeb/Bindings: Generate undefined in a union as 'Empty'

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This can only ever be undefined, and no other JS value, so it makes
sense to use undefined to represent this case.
This commit is contained in:
Shannon Booth
2025-01-12 22:50:03 +13:00
committed by Tim Ledbetter
parent fef1f62ecc
commit dfdcfc8e88
5 changed files with 13 additions and 7 deletions
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4
Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.cpp
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@@ -326,7 +326,7 @@ JS::ThrowCompletionOr<void> CustomElementRegistry::define(String const& name, We
}
// https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-get
Variant<GC::Root<WebIDL::CallbackType>, JS::Value> CustomElementRegistry::get(String const& name) const
Variant<GC::Root<WebIDL::CallbackType>, Empty> CustomElementRegistry::get(String const& name) const
{
// 1. If this's custom element definition set contains an item with name name, then return that item's constructor.
auto existing_definition_iterator = m_custom_element_definitions.find_if([&name](auto const& definition) {
@@ -337,7 +337,7 @@ Variant<GC::Root<WebIDL::CallbackType>, JS::Value> CustomElementRegistry::get(St
return GC::make_root((*existing_definition_iterator)->constructor());
// 2. Return undefined.
return JS::js_undefined();
return Empty {};
}
// https://html.spec.whatwg.org/multipage/custom-elements.html#dom-customelementregistry-getname