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LibJS+LibWeb: Add JS::Object::inherits(class_name)

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To allow implementing the DOM class hierarchy in JS bindings, this
patch adds an inherits() function that can be used to ask an Object
if it inherits from a specific C++ class (by name).

The necessary overrides are baked into each Object subclass by the
new JS_OBJECT macro, which works similarly to C_OBJECT in LibCore.

Thanks to @Dexesttp for suggesting this approach. :^)
This commit is contained in:
Andreas Kling 2020-06-21 15:14:02 +02:00
parent 1914f52371
commit af51dc105a
57 changed files with 122 additions and 106 deletions
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4
Libraries/LibWeb/Bindings/NavigatorObject.h
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@ -33,14 +33,14 @@ namespace Web {
namespace Bindings {
class NavigatorObject final : public JS::Object {
JS_OBJECT(NavigatorObject, JS::Object);
public:
NavigatorObject(JS::GlobalObject&);
virtual void initialize(JS::Interpreter&, JS::GlobalObject&) override;
virtual ~NavigatorObject() override;
private:
virtual const char* class_name() const override { return "NavigatorObject"; }
JS_DECLARE_NATIVE_GETTER(user_agent_getter);
};