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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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| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 // | 27 // |
| 28 | 28 |
| 29 #ifndef V8_HANDLES_INL_H_ | 29 #ifndef V8_HANDLES_INL_H_ |
| 30 #define V8_HANDLES_INL_H_ | 30 #define V8_HANDLES_INL_H_ |
| 31 | 31 |
| 32 #include "apiutils.h" |
| 32 #include "handles.h" | 33 #include "handles.h" |
| 33 #include "api.h" | 34 #include "api.h" |
| 34 | 35 |
| 35 namespace v8 { namespace internal { | 36 namespace v8 { namespace internal { |
| 36 | 37 |
| 37 template<class T> | 38 template<class T> |
| 38 Handle<T>::Handle(T* obj) { | 39 Handle<T>::Handle(T* obj) { |
| 39 ASSERT(!obj->IsFailure()); | 40 ASSERT(!obj->IsFailure()); |
| 40 location_ = reinterpret_cast<T**>(HandleScope::CreateHandle(obj)); | 41 location_ = reinterpret_cast<T**>(HandleScope::CreateHandle(obj)); |
| 41 } | 42 } |
| 42 | 43 |
| 43 | 44 |
| 44 template <class T> | 45 template <class T> |
| 45 inline T* Handle<T>::operator*() const { | 46 inline T* Handle<T>::operator*() const { |
| 46 ASSERT(location_ != NULL); | 47 ASSERT(location_ != NULL); |
| 47 ASSERT(reinterpret_cast<Address>(*location_) != kHandleZapValue); | 48 ASSERT(reinterpret_cast<Address>(*location_) != kHandleZapValue); |
| 48 return *location_; | 49 return *location_; |
| 49 } | 50 } |
| 50 | 51 |
| 51 | 52 |
| 52 #ifdef DEBUG | 53 #ifdef DEBUG |
| 53 inline NoHandleAllocation::NoHandleAllocation() { | 54 inline NoHandleAllocation::NoHandleAllocation() { |
| 54 ImplementationUtilities::HandleScopeData* current = | 55 v8::ImplementationUtilities::HandleScopeData* current = |
| 55 ImplementationUtilities::CurrentHandleScope(); | 56 v8::ImplementationUtilities::CurrentHandleScope(); |
| 56 extensions_ = current->extensions; | 57 extensions_ = current->extensions; |
| 57 // Shrink the current handle scope to make it impossible to do | 58 // Shrink the current handle scope to make it impossible to do |
| 58 // handle allocations without an explicit handle scope. | 59 // handle allocations without an explicit handle scope. |
| 59 current->limit = current->next; | 60 current->limit = current->next; |
| 60 current->extensions = -1; | 61 current->extensions = -1; |
| 61 } | 62 } |
| 62 | 63 |
| 63 | 64 |
| 64 inline NoHandleAllocation::~NoHandleAllocation() { | 65 inline NoHandleAllocation::~NoHandleAllocation() { |
| 65 // Restore state in current handle scope to re-enable handle | 66 // Restore state in current handle scope to re-enable handle |
| 66 // allocations. | 67 // allocations. |
| 67 ImplementationUtilities::CurrentHandleScope()->extensions = extensions_; | 68 v8::ImplementationUtilities::CurrentHandleScope()->extensions = extensions_; |
| 68 } | 69 } |
| 69 #endif | 70 #endif |
| 70 | 71 |
| 71 | 72 |
| 72 } } // namespace v8::internal | 73 } } // namespace v8::internal |
| 73 | 74 |
| 74 #endif // V8_HANDLES_INL_H_ | 75 #endif // V8_HANDLES_INL_H_ |
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