2008-09-09 20:08:45 +00:00
|
|
|
// Copyright 2006-2008 the V8 project authors. All rights reserved.
|
2008-07-03 15:10:15 +00:00
|
|
|
// 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_
|
|
|
|
|
2009-05-25 10:05:56 +00:00
|
|
|
namespace v8 {
|
|
|
|
namespace internal {
|
2008-07-03 15:10:15 +00:00
|
|
|
|
|
|
|
// Memory provides an interface to 'raw' memory. It encapsulates the casts
|
|
|
|
// that typically are needed when incompatible pointer types are used.
|
|
|
|
|
|
|
|
class Memory {
|
|
|
|
public:
|
2010-08-30 08:54:43 +00:00
|
|
|
static uint8_t& uint8_at(Address addr) {
|
|
|
|
return *reinterpret_cast<uint8_t*>(addr);
|
|
|
|
}
|
|
|
|
|
2009-06-02 13:40:52 +00:00
|
|
|
static uint16_t& uint16_at(Address addr) {
|
|
|
|
return *reinterpret_cast<uint16_t*>(addr);
|
|
|
|
}
|
|
|
|
|
2008-07-03 15:10:15 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2009-05-28 09:18:17 +00:00
|
|
|
static uint64_t& uint64_at(Address addr) {
|
|
|
|
return *reinterpret_cast<uint64_t*>(addr);
|
|
|
|
}
|
|
|
|
|
2008-07-03 15:10:15 +00:00
|
|
|
static int& int_at(Address addr) {
|
|
|
|
return *reinterpret_cast<int*>(addr);
|
|
|
|
}
|
|
|
|
|
2010-12-07 11:31:57 +00:00
|
|
|
static double& double_at(Address addr) {
|
|
|
|
return *reinterpret_cast<double*>(addr);
|
|
|
|
}
|
|
|
|
|
2008-07-03 15:10:15 +00:00
|
|
|
static Address& Address_at(Address addr) {
|
|
|
|
return *reinterpret_cast<Address*>(addr);
|
|
|
|
}
|
|
|
|
|
|
|
|
static Object*& Object_at(Address addr) {
|
|
|
|
return *reinterpret_cast<Object**>(addr);
|
|
|
|
}
|
2009-10-06 13:11:05 +00:00
|
|
|
|
|
|
|
static Handle<Object>& Object_Handle_at(Address addr) {
|
|
|
|
return *reinterpret_cast<Handle<Object>*>(addr);
|
|
|
|
}
|
2008-07-03 15:10:15 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
} } // namespace v8::internal
|
|
|
|
|
|
|
|
#endif // V8_MEMORY_H_
|