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LibCore+LibGUI: Make it fast to check if a Core::Object is a Widget
This check happens very often in LibGUI code. 25% of time spent layouting the emoji input dialog was wasted on RTTI. Adding a simple fast_is<Widget>() melts almost all of that away.
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2 changed files with 10 additions and 0 deletions
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@ -98,6 +98,11 @@ public:
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virtual StringView class_name() const = 0;
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template<typename T>
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bool fast_is() const = delete;
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virtual bool is_widget() const { return false; }
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String const& name() const { return m_name; }
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void set_name(String name) { m_name = move(name); }
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