| // 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_MEMORY_H_ |
| #define V8_MEMORY_H_ |
| |
| namespace v8 { |
| namespace internal { |
| |
| // Memory provides an interface to 'raw' memory. It encapsulates the casts |
| // that typically are needed when incompatible pointer types are used. |
| |
| class Memory { |
| public: |
| static uint32_t& uint32_at(Address addr) { |
| return *reinterpret_cast<uint32_t*>(addr); |
| } |
| |
| static int32_t& int32_at(Address addr) { |
| return *reinterpret_cast<int32_t*>(addr); |
| } |
| |
| static uint64_t& uint64_at(Address addr) { |
| return *reinterpret_cast<uint64_t*>(addr); |
| } |
| |
| static int& int_at(Address addr) { |
| return *reinterpret_cast<int*>(addr); |
| } |
| |
| static Address& Address_at(Address addr) { |
| return *reinterpret_cast<Address*>(addr); |
| } |
| |
| static Object*& Object_at(Address addr) { |
| return *reinterpret_cast<Object**>(addr); |
| } |
| }; |
| |
| } } // namespace v8::internal |
| |
| #endif // V8_MEMORY_H_ |