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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | |
| 2 // Redistribution and use in source and binary forms, with or without | |
| 3 // modification, are permitted provided that the following conditions are | |
| 4 // met: | |
| 5 // | |
| 6 // * Redistributions of source code must retain the above copyright | |
| 7 // notice, this list of conditions and the following disclaimer. | |
| 8 // * Redistributions in binary form must reproduce the above | |
| 9 // copyright notice, this list of conditions and the following | |
| 10 // disclaimer in the documentation and/or other materials provided | |
| 11 // with the distribution. | |
| 12 // * Neither the name of Google Inc. nor the names of its | |
| 13 // contributors may be used to endorse or promote products derived | |
| 14 // from this software without specific prior written permission. | |
| 15 // | |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 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. | |
| 27 | |
| 28 #ifndef V8_MEMORY_H_ | |
| 29 #define V8_MEMORY_H_ | |
| 30 | |
| 31 namespace v8 { | |
| 32 namespace internal { | |
| 33 | |
| 34 // Memory provides an interface to 'raw' memory. It encapsulates the casts | |
| 35 // that typically are needed when incompatible pointer types are used. | |
| 36 | |
| 37 class Memory { | |
| 38 public: | |
| 39 static uint8_t& uint8_at(Address addr) { | |
| 40 return *reinterpret_cast<uint8_t*>(addr); | |
| 41 } | |
| 42 | |
| 43 static uint16_t& uint16_at(Address addr) { | |
| 44 return *reinterpret_cast<uint16_t*>(addr); | |
| 45 } | |
| 46 | |
| 47 static uint32_t& uint32_at(Address addr) { | |
| 48 return *reinterpret_cast<uint32_t*>(addr); | |
| 49 } | |
| 50 | |
| 51 static int32_t& int32_at(Address addr) { | |
| 52 return *reinterpret_cast<int32_t*>(addr); | |
| 53 } | |
| 54 | |
| 55 static uint64_t& uint64_at(Address addr) { | |
| 56 return *reinterpret_cast<uint64_t*>(addr); | |
| 57 } | |
| 58 | |
| 59 static int& int_at(Address addr) { | |
| 60 return *reinterpret_cast<int*>(addr); | |
| 61 } | |
| 62 | |
| 63 static double& double_at(Address addr) { | |
| 64 return *reinterpret_cast<double*>(addr); | |
| 65 } | |
| 66 | |
| 67 static Address& Address_at(Address addr) { | |
| 68 return *reinterpret_cast<Address*>(addr); | |
| 69 } | |
| 70 | |
| 71 static Object*& Object_at(Address addr) { | |
| 72 return *reinterpret_cast<Object**>(addr); | |
| 73 } | |
| 74 | |
| 75 static Handle<Object>& Object_Handle_at(Address addr) { | |
| 76 return *reinterpret_cast<Handle<Object>*>(addr); | |
| 77 } | |
| 78 }; | |
| 79 | |
| 80 } } // namespace v8::internal | |
| 81 | |
| 82 #endif // V8_MEMORY_H_ | |
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Chromium Code Reviews
Issue 6716020:
Rename memory.h to v8memory.h (Closed)
Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/