OLD | NEW |
(Empty) | |
| 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 STACK_ALLOCATED_H_ |
| 6 #define STACK_ALLOCATED_H_ |
| 7 |
| 8 #include "heap/stubs.h" |
| 9 |
| 10 namespace blink { |
| 11 |
| 12 class HeapObject; |
| 13 |
| 14 class PartObject { |
| 15 DISALLOW_ALLOCATION(); |
| 16 private: |
| 17 Member<HeapObject> m_obj; // Needs tracing. |
| 18 }; |
| 19 |
| 20 class StackObject { |
| 21 STACK_ALLOCATED(); |
| 22 private: |
| 23 Member<HeapObject> m_obj; // Does not need tracing. |
| 24 }; |
| 25 |
| 26 class AnotherStackObject : public PartObject { // Invalid base. |
| 27 STACK_ALLOCATED(); |
| 28 private: |
| 29 StackObject m_part; // Can embed a stack allocated object. |
| 30 }; |
| 31 |
| 32 class HeapObject : public GarbageCollected<HeapObject> { |
| 33 public: |
| 34 void trace(Visitor*); |
| 35 private: |
| 36 StackObject m_part; // Cannot embed a stack allocated object. |
| 37 }; |
| 38 |
| 39 // STACK_ALLOCATED is inherited. |
| 40 class DerivedStackObject : public StackObject { |
| 41 private: |
| 42 AnotherStackObject m_anotherPart; // Also fine. |
| 43 }; |
| 44 |
| 45 } |
| 46 |
| 47 #endif |
OLD | NEW |