| // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| |
| #ifndef V8_HANDLES_INL_H_ |
| #define V8_HANDLES_INL_H_ |
| |
| #include "apiutils.h" |
| #include "handles.h" |
| #include "api.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| template<class T> |
| Handle<T>::Handle(T* obj) { |
| ASSERT(!obj->IsFailure()); |
| location_ = reinterpret_cast<T**>(HandleScope::CreateHandle(obj)); |
| } |
| |
| |
| template <class T> |
| inline T* Handle<T>::operator*() const { |
| ASSERT(location_ != NULL); |
| ASSERT(reinterpret_cast<Address>(*location_) != kHandleZapValue); |
| return *location_; |
| } |
| |
| |
| #ifdef DEBUG |
| inline NoHandleAllocation::NoHandleAllocation() { |
| v8::ImplementationUtilities::HandleScopeData* current = |
| v8::ImplementationUtilities::CurrentHandleScope(); |
| extensions_ = current->extensions; |
| // Shrink the current handle scope to make it impossible to do |
| // handle allocations without an explicit handle scope. |
| current->limit = current->next; |
| current->extensions = -1; |
| } |
| |
| |
| inline NoHandleAllocation::~NoHandleAllocation() { |
| // Restore state in current handle scope to re-enable handle |
| // allocations. |
| v8::ImplementationUtilities::CurrentHandleScope()->extensions = extensions_; |
| } |
| #endif |
| |
| |
| } } // namespace v8::internal |
| |
| #endif // V8_HANDLES_INL_H_ |