webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 0 insertions, 147 deletions

diff --git a/Source/JavaScriptCore/jit/JITWriteBarrier.h b/Source/JavaScriptCore/jit/JITWriteBarrier.h
deleted file mode 100644
index ca2ca6eb2..000000000
--- a/Source/JavaScriptCore/jit/JITWriteBarrier.h
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (C) 2011 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. 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 INC. 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 JITWriteBarrier_h
-#define JITWriteBarrier_h
-
-#if ENABLE(JIT)
-
-#include "MacroAssembler.h"
-#include "SlotVisitor.h"
-#include "UnusedPointer.h"
-#include "WriteBarrier.h"
-
-namespace JSC {
-
-class JSCell;
-class VM;
-
-// Needs to be even to appease some of the backends.
-#define JITWriteBarrierFlag ((void*)2)
-class JITWriteBarrierBase {
-public:
-    typedef void* (JITWriteBarrierBase::*UnspecifiedBoolType);
-    operator UnspecifiedBoolType*() const { return get() ? reinterpret_cast<UnspecifiedBoolType*>(1) : 0; }
-    bool operator!() const { return !get(); }
-
-    void setFlagOnBarrier()
-    {
-        ASSERT(!m_location);
-        m_location = CodeLocationDataLabelPtr(JITWriteBarrierFlag);
-    }
-
-    bool isFlagged() const
-    {
-        return !!m_location;
-    }
-
-    void setLocation(CodeLocationDataLabelPtr location)
-    {
-        ASSERT(!m_location);
-        m_location = location;
-    }
-
-    CodeLocationDataLabelPtr location() const
-    {
-        ASSERT((!!m_location) && m_location.executableAddress() != JITWriteBarrierFlag);
-        return m_location;
-    }
-    
-    void clear() { clear(0); }
-    void clearToUnusedPointer() { clear(reinterpret_cast<void*>(unusedPointer)); }
-
-protected:
-    JITWriteBarrierBase()
-    {
-    }
-
-    void set(VM&, CodeLocationDataLabelPtr location, JSCell* owner, JSCell* value)
-    {
-        Heap::writeBarrier(owner, value);
-        m_location = location;
-        ASSERT(((!!m_location) && m_location.executableAddress() != JITWriteBarrierFlag) || (location.executableAddress() == m_location.executableAddress()));
-        MacroAssembler::repatchPointer(m_location, value);
-        ASSERT(get() == value);
-    }
-
-    JSCell* get() const
-    {
-        if (!m_location || m_location.executableAddress() == JITWriteBarrierFlag)
-            return 0;
-        void* result = static_cast<JSCell*>(MacroAssembler::readPointer(m_location));
-        if (result == reinterpret_cast<void*>(unusedPointer))
-            return 0;
-        return static_cast<JSCell*>(result);
-    }
-
-private:
-    void clear(void* clearedValue)
-    {
-        if (!m_location)
-            return;
-        if (m_location.executableAddress() != JITWriteBarrierFlag)
-            MacroAssembler::repatchPointer(m_location, clearedValue);
-    }
-
-    CodeLocationDataLabelPtr m_location;
-};
-
-#undef JITWriteBarrierFlag
-
-template <typename T> class JITWriteBarrier : public JITWriteBarrierBase {
-public:
-    JITWriteBarrier()
-    {
-    }
-
-    void set(VM& vm, CodeLocationDataLabelPtr location, JSCell* owner, T* value)
-    {
-        validateCell(owner);
-        validateCell(value);
-        JITWriteBarrierBase::set(vm, location, owner, value);
-    }
-    void set(VM& vm, JSCell* owner, T* value)
-    {
-        set(vm, location(), owner, value);
-    }
-    T* get() const
-    {
-        T* result = static_cast<T*>(JITWriteBarrierBase::get());
-        if (result)
-            validateCell(result);
-        return result;
-    }
-};
-
-template<typename T> inline void SlotVisitor::append(JITWriteBarrier<T>* slot)
-{
-    internalAppend(0, slot->get());
-}
-
-}
-
-#endif // ENABLE(JIT)
-
-#endif