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Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/bytecompiler/Label.h')
-rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/bytecompiler/Label.h | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/bytecompiler/Label.h b/src/3rdparty/javascriptcore/JavaScriptCore/bytecompiler/Label.h deleted file mode 100644 index 8cab1db..0000000 --- a/src/3rdparty/javascriptcore/JavaScriptCore/bytecompiler/Label.h +++ /dev/null @@ -1,90 +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. - * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 Label_h -#define Label_h - -#include "CodeBlock.h" -#include "Instruction.h" -#include <wtf/Assertions.h> -#include <wtf/Vector.h> -#include <limits.h> - -namespace JSC { - - class Label { - public: - explicit Label(CodeBlock* codeBlock) - : m_refCount(0) - , m_location(invalidLocation) - , m_codeBlock(codeBlock) - { - } - - void setLocation(unsigned location) - { - m_location = location; - - unsigned size = m_unresolvedJumps.size(); - for (unsigned i = 0; i < size; ++i) - m_codeBlock->instructions()[m_unresolvedJumps[i].second].u.operand = m_location - m_unresolvedJumps[i].first; - } - - int bind(int opcode, int offset) const - { - if (m_location == invalidLocation) { - m_unresolvedJumps.append(std::make_pair(opcode, offset)); - return 0; - } - return m_location - opcode; - } - - void ref() { ++m_refCount; } - void deref() - { - --m_refCount; - ASSERT(m_refCount >= 0); - } - int refCount() const { return m_refCount; } - - bool isForward() const { return m_location == invalidLocation; } - - private: - typedef Vector<std::pair<int, int>, 8> JumpVector; - - static const unsigned invalidLocation = UINT_MAX; - - int m_refCount; - unsigned m_location; - CodeBlock* m_codeBlock; - mutable JumpVector m_unresolvedJumps; - }; - -} // namespace JSC - -#endif // Label_h |