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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef HeapTerminatedArray_h | |
| 6 #define HeapTerminatedArray_h | |
| 7 | |
| 8 #include "platform/heap/Heap.h" | |
| 9 #include "wtf/TerminatedArray.h" | |
| 10 #include "wtf/TerminatedArrayBuilder.h" | |
| 11 | |
| 12 namespace blink { | |
| 13 | |
| 14 template<typename T> | |
| 15 class HeapTerminatedArray : public TerminatedArray<T> { | |
| 16 DISALLOW_ALLOCATION(); | |
| 17 public: | |
| 18 using TerminatedArray<T>::begin; | |
| 19 using TerminatedArray<T>::end; | |
| 20 | |
| 21 void trace(Visitor* visitor) | |
| 22 { | |
| 23 for (typename TerminatedArray<T>::iterator it = begin(); it != end(); ++
it) | |
| 24 visitor->trace(*it); | |
| 25 } | |
| 26 | |
| 27 private: | |
| 28 // Allocator describes how HeapTerminatedArrayBuilder should create new inta
nces | |
| 29 // of TerminateArray and manage their lifetimes. | |
| 30 struct Allocator { | |
| 31 typedef HeapTerminatedArray* PassPtr; | |
| 32 typedef RawPtr<HeapTerminatedArray> Ptr; | |
| 33 | |
| 34 static PassPtr create(size_t capacity) | |
| 35 { | |
| 36 return reinterpret_cast<HeapTerminatedArray*>(Heap::allocate<HeapTer
minatedArray>(capacity * sizeof(T))); | |
| 37 } | |
| 38 | |
| 39 static PassPtr resize(PassPtr ptr, size_t capacity) | |
| 40 { | |
| 41 return reinterpret_cast<HeapTerminatedArray*>(Heap::reallocate<HeapT
erminatedArray>(ptr, capacity * sizeof(T))); | |
| 42 } | |
| 43 }; | |
| 44 | |
| 45 // Prohibit construction. Allocator makes HeapTerminatedArray instances for | |
| 46 // HeapTerminatedArrayBuilder by pointer casting. | |
| 47 HeapTerminatedArray(); | |
| 48 | |
| 49 template<typename U, template <typename> class> friend class WTF::Terminated
ArrayBuilder; | |
| 50 }; | |
| 51 | |
| 52 } // namespace blink | |
| 53 | |
| 54 #endif // HeapTerminatedArray_h | |
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