mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-07-31 21:29:06 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

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

Browse source 
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
commit dfdcfc8e88
Notes: github-actions[bot] 2025-01-12 18:40:27 +00:00
5 changed files with 13 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

4
Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.cpp
View file

@ -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

2
Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.h
View file

@ -25,7 +25,7 @@ public:
virtual ~CustomElementRegistry() override;
JS::ThrowCompletionOr<void> define(String const& name, WebIDL::CallbackType* constructor, ElementDefinitionOptions options);
Variant<GC::Root<WebIDL::CallbackType>, JS::Value> get(String const& name) const;
Variant<GC::Root<WebIDL::CallbackType>, Empty> get(String const& name) const;
Optional<String> get_name(GC::Root<WebIDL::CallbackType> const& constructor) const;
WebIDL::ExceptionOr<GC::Ref<WebIDL::Promise>> when_defined(String const& name);
void upgrade(GC::Ref<DOM::Node> root) const;

4
Libraries/LibWeb/HTML/Window.cpp
View file

@ -1199,12 +1199,12 @@ WebIDL::ExceptionOr<void> Window::post_message(JS::Value message, String const&
}
// https://dom.spec.whatwg.org/#dom-window-event
Variant<GC::Root<DOM::Event>, JS::Value> Window::event() const
Variant<GC::Root<DOM::Event>, Empty> Window::event() const
{
// The event getter steps are to return this’s current event.
if (auto* current_event = this->current_event())
return make_root(const_cast<DOM::Event&>(*current_event));
return JS::js_undefined();
return Empty {};
}
// https://w3c.github.io/csswg-drafts/cssom/#dom-window-getcomputedstyle

2
Libraries/LibWeb/HTML/Window.h
View file

@ -196,7 +196,7 @@ public:
WebIDL::ExceptionOr<void> post_message(JS::Value message, String const&, Vector<GC::Root<JS::Object>> const&);
WebIDL::ExceptionOr<void> post_message(JS::Value message, WindowPostMessageOptions const&);
Variant<GC::Root<DOM::Event>, JS::Value> event() const;
Variant<GC::Root<DOM::Event>, Empty> event() const;
[[nodiscard]] GC::Ref<CSS::CSSStyleDeclaration> get_computed_style(DOM::Element&, Optional<String> const& pseudo_element) const;