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AK: Prevent accidental misuse of BumpAllocator

Browse source 
In particular, we implicitly required that the caller initializes the
returned instances themselves (solved by making
UniformBumpAllocator::allocate call the constructor), and BumpAllocator
itself cannot handle classes that are not trivially deconstructible
(solved by deleting the method).

Co-authored-by: Ali Mohammad Pur <ali.mpfard@gmail.com>
This commit is contained in:
Ben Wiederhake 2021-10-22 20:15:47 +02:00 • committed by Linus Groh
parent 5d865d574a
commit 50698a0db4
2 changed files with 10 additions and 13 deletions
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14
AK/BumpAllocator.h
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@ -51,12 +51,6 @@ public:
return (void*)aligned_ptr;
}
template<typename T>
T* allocate()
{
return (T*)allocate(sizeof(T), alignof(T));
}
void deallocate_all()
{
if (!m_head_chunk)
@ -160,9 +154,13 @@ public:
destroy_all();
}
T* allocate()
template<typename... Args>
T* allocate(Args&&... args)
{
return Allocator::template allocate<T>();
auto ptr = (T*)Allocator::allocate(sizeof(T), alignof(T));
if (!ptr)
return nullptr;
return new (ptr) T { forward<Args>(args)... };
}
void deallocate_all()