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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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44 | 44 |
45 | 45 |
46 template <typename T> | 46 template <typename T> |
47 inline T* Handle<T>::operator*() const { | 47 inline T* Handle<T>::operator*() const { |
48 ASSERT(location_ != NULL); | 48 ASSERT(location_ != NULL); |
49 ASSERT(reinterpret_cast<Address>(*location_) != kHandleZapValue); | 49 ASSERT(reinterpret_cast<Address>(*location_) != kHandleZapValue); |
50 return *BitCast<T**>(location_); | 50 return *BitCast<T**>(location_); |
51 } | 51 } |
52 | 52 |
53 | 53 |
54 template <typename T> | |
55 HandleCell<T>::HandleCell(T* value) | |
56 : location_(HandleScope::CreateHandle(value)) { } | |
57 | |
58 | |
59 template <typename T> | |
60 HandleCell<T>::HandleCell(Handle<T> value) | |
61 : location_(HandleScope::CreateHandle(*value)) { } | |
62 | |
63 | |
64 #ifdef DEBUG | 54 #ifdef DEBUG |
65 inline NoHandleAllocation::NoHandleAllocation() { | 55 inline NoHandleAllocation::NoHandleAllocation() { |
66 v8::ImplementationUtilities::HandleScopeData* current = | 56 v8::ImplementationUtilities::HandleScopeData* current = |
67 v8::ImplementationUtilities::CurrentHandleScope(); | 57 v8::ImplementationUtilities::CurrentHandleScope(); |
68 // Shrink the current handle scope to make it impossible to do | 58 // Shrink the current handle scope to make it impossible to do |
69 // handle allocations without an explicit handle scope. | 59 // handle allocations without an explicit handle scope. |
70 current->limit = current->next; | 60 current->limit = current->next; |
71 | 61 |
72 level_ = current->level; | 62 level_ = current->level; |
73 current->level = 0; | 63 current->level = 0; |
74 } | 64 } |
75 | 65 |
76 | 66 |
77 inline NoHandleAllocation::~NoHandleAllocation() { | 67 inline NoHandleAllocation::~NoHandleAllocation() { |
78 // Restore state in current handle scope to re-enable handle | 68 // Restore state in current handle scope to re-enable handle |
79 // allocations. | 69 // allocations. |
80 v8::ImplementationUtilities::HandleScopeData* current = | 70 v8::ImplementationUtilities::HandleScopeData* current = |
81 v8::ImplementationUtilities::CurrentHandleScope(); | 71 v8::ImplementationUtilities::CurrentHandleScope(); |
82 ASSERT_EQ(0, current->level); | 72 ASSERT_EQ(0, current->level); |
83 current->level = level_; | 73 current->level = level_; |
84 } | 74 } |
85 #endif | 75 #endif |
86 | 76 |
87 | 77 |
88 } } // namespace v8::internal | 78 } } // namespace v8::internal |
89 | 79 |
90 #endif // V8_HANDLES_INL_H_ | 80 #endif // V8_HANDLES_INL_H_ |
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