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LibCore: Call optional did_construct() method when constucting objects

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Some objects need to perform tasks during construction that require
the object to be fully constructed, which can't be done in the
constructor. This allows postponing such tasks into a did_construct
method that will be called right after the object was fully
constructed.
This commit is contained in:
Ali Mohammad Pur 2021-06-18 16:56:52 -06:00 • committed by Andreas Kling
parent ade85d980b
commit 20c066b8e0
1 changed files with 5 additions and 2 deletions
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7
Userland/Libraries/LibCore/Object.h
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@ -59,10 +59,13 @@ enum class TimerShouldFireWhenNotVisible {
#define C_OBJECT(klass) \
public: \
virtual const char* class_name() const override { return #klass; } \
template<class... Args> \
template<typename Klass = klass, class... Args> \
static inline NonnullRefPtr<klass> construct(Args&&... args) \
{ \
return adopt_ref(*new klass(forward<Args>(args)...)); \
auto obj = adopt_ref(*new Klass(forward<Args>(args)...)); \
if constexpr (requires { declval<Klass>().did_construct(); }) \
obj->did_construct(); \
return obj; \
}
#define C_OBJECT_ABSTRACT(klass) \