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Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/assembler/AssemblerBuffer.h')
| -rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/assembler/AssemblerBuffer.h | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/assembler/AssemblerBuffer.h b/src/3rdparty/javascriptcore/JavaScriptCore/assembler/AssemblerBuffer.h deleted file mode 100644 index 073906a..0000000 --- a/src/3rdparty/javascriptcore/JavaScriptCore/assembler/AssemblerBuffer.h +++ /dev/null @@ -1,173 +0,0 @@ -/* - * Copyright (C) 2008 Apple Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 AssemblerBuffer_h -#define AssemblerBuffer_h - -#include <wtf/Platform.h> - -#if ENABLE(ASSEMBLER) - -#include "stdint.h" -#include <string.h> -#include <jit/ExecutableAllocator.h> -#include <wtf/Assertions.h> -#include <wtf/FastMalloc.h> - -namespace JSC { - - class AssemblerBuffer { - static const int inlineCapacity = 256; - public: - AssemblerBuffer() - : m_buffer(m_inlineBuffer) - , m_capacity(inlineCapacity) - , m_size(0) - { - } - - ~AssemblerBuffer() - { - if (m_buffer != m_inlineBuffer) - fastFree(m_buffer); - } - - void ensureSpace(int space) - { - if (m_size > m_capacity - space) - grow(); - } - - bool isAligned(int alignment) const - { - return !(m_size & (alignment - 1)); - } - - void putByteUnchecked(int value) - { - ASSERT(!(m_size > m_capacity - 4)); - m_buffer[m_size] = value; - m_size++; - } - - void putByte(int value) - { - if (m_size > m_capacity - 4) - grow(); - putByteUnchecked(value); - } - - void putShortUnchecked(int value) - { - ASSERT(!(m_size > m_capacity - 4)); - *reinterpret_cast<short*>(&m_buffer[m_size]) = value; - m_size += 2; - } - - void putShort(int value) - { - if (m_size > m_capacity - 4) - grow(); - putShortUnchecked(value); - } - - void putIntUnchecked(int value) - { - ASSERT(!(m_size > m_capacity - 4)); - *reinterpret_cast<int*>(&m_buffer[m_size]) = value; - m_size += 4; - } - - void putInt64Unchecked(int64_t value) - { - ASSERT(!(m_size > m_capacity - 8)); - *reinterpret_cast<int64_t*>(&m_buffer[m_size]) = value; - m_size += 8; - } - - void putInt(int value) - { - if (m_size > m_capacity - 4) - grow(); - putIntUnchecked(value); - } - - void* data() const - { - return m_buffer; - } - - int size() const - { - return m_size; - } - - void* executableCopy(ExecutablePool* allocator) - { - if (!m_size) - return 0; - - void* result = allocator->alloc(m_size); - - if (!result) - return 0; - - ExecutableAllocator::makeWritable(result, m_size); - - return memcpy(result, m_buffer, m_size); - } - - protected: - void append(const char* data, int size) - { - if (m_size > m_capacity - size) - grow(size); - - memcpy(m_buffer + m_size, data, size); - m_size += size; - } - - void grow(int extraCapacity = 0) - { - m_capacity += m_capacity / 2 + extraCapacity; - - if (m_buffer == m_inlineBuffer) { - char* newBuffer = static_cast<char*>(fastMalloc(m_capacity)); - m_buffer = static_cast<char*>(memcpy(newBuffer, m_buffer, m_size)); - } else - m_buffer = static_cast<char*>(fastRealloc(m_buffer, m_capacity)); - } - - char m_inlineBuffer[inlineCapacity]; - char* m_buffer; - int m_capacity; - int m_size; - }; - -} // namespace JSC - -#endif // ENABLE(ASSEMBLER) - -#endif // AssemblerBuffer_h |