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LibCore+LibGUI: Switch to using AK::is and AK::downcast

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This commit is contained in:
Andreas Kling 2020-07-26 17:16:35 +02:00
parent 71556e39a4
commit e0b8b4ac67
14 changed files with 341 additions and 98 deletions
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23
Libraries/LibCore/Object.h
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@ -31,6 +31,7 @@
#include <AK/Noncopyable.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/String.h>
#include <AK/TypeCasts.h>
#include <AK/Weakable.h>
#include <LibCore/Forward.h>
@ -147,8 +148,8 @@ protected:
// NOTE: You may get child events for children that are not yet fully constructed!
virtual void child_event(ChildEvent&);
virtual void did_begin_inspection() {}
virtual void did_end_inspection() {}
virtual void did_begin_inspection() { }
virtual void did_end_inspection() { }
private:
Object* m_parent { nullptr };
@ -159,29 +160,15 @@ private:
NonnullRefPtrVector<Object> m_children;
};
template<typename T>
inline bool is(const Object&) { return false; }
template<typename T>
inline T& to(Object& object)
{
ASSERT(is<typename RemoveConst<T>::Type>(object));
return static_cast<T&>(object);
}
template<typename T>
inline const T& to(const Object& object)
{
ASSERT(is<typename RemoveConst<T>::Type>(object));
return static_cast<const T&>(object);
}
namespace Core {
template<typename T, typename Callback>
inline void Object::for_each_child_of_type(Callback callback)
{
for_each_child([&](auto& child) {
if (is<T>(child))
return callback(to<T>(child));
return callback(downcast<T>(child));
return IterationDecision::Continue;
});
}