From 2daae5fd11344eaa88a0d92b0f6d65f8d2255c00 Mon Sep 17 00:00:00 2001
From: Ben Murdoch <benm@google.com>
Date: Thu, 2 Jun 2011 12:07:03 +0100
Subject: Merge WebKit at r84325: Initial merge by git.

Change-Id: Ic1a909300ecc0a13ddc6b4e784371d2ac6e3d59b
---
 Source/JavaScriptCore/collector/handles/Global.h | 159 -----------------------
 1 file changed, 159 deletions(-)
 delete mode 100644 Source/JavaScriptCore/collector/handles/Global.h

(limited to 'Source/JavaScriptCore/collector/handles/Global.h')

diff --git a/Source/JavaScriptCore/collector/handles/Global.h b/Source/JavaScriptCore/collector/handles/Global.h
deleted file mode 100644
index 571fe31..0000000
--- a/Source/JavaScriptCore/collector/handles/Global.h
+++ /dev/null
@@ -1,159 +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 Global_h
-#define Global_h
-
-#include "Assertions.h"
-#include "Handle.h"
-#include "HandleHeap.h"
-#include "JSGlobalData.h"
-
-namespace JSC {
-
-/*
-    A Global is a persistent handle whose lifetime is not limited to any given
-    scope. Use Globals for data members and global variables.
-*/
-
-template <typename T> class Global : public Handle<T> {
-public:
-    typedef typename Handle<T>::ExternalType ExternalType;
-    Global(JSGlobalData& globalData, ExternalType ptr = ExternalType())
-        : Handle<T>(globalData.allocateGlobalHandle())
-    {
-        internalSet(ptr);
-    }
-
-    Global(JSGlobalData& globalData, Handle<T> handle)
-        : Handle<T>(globalData.allocateGlobalHandle())
-    {
-        internalSet(handle.get());
-    }
-    
-    enum EmptyValueTag { EmptyValue };
-    Global(EmptyValueTag)
-        : Handle<T>(0, HandleBase::DontNullCheckSlot)
-    {
-    }
-
-    ~Global()
-    {
-        HandleSlot slot = this->slot();
-        if (slot)
-            HandleHeap::heapFor(slot)->deallocate(slot);
-    }
-
-    void set(JSGlobalData& globalData, ExternalType value)
-    {
-        if (!value) {
-            clear();
-            return;
-        }
-        if (!this->slot())
-            this->setSlot(globalData.allocateGlobalHandle());
-        internalSet(value);
-    }
-
-    template <typename U> Global& operator=(const Global<U>& handle)
-    {
-        if (handle.slot()) {
-            if (!this->slot())
-                this->setSlot(HandleHeap::heapFor(handle.slot())->allocate());
-            internalSet(handle.get());
-        } else
-            clear();
-        
-        return *this;
-    }
-    
-    Global& operator=(const Global& handle)
-    {
-        if (handle.slot()) {
-            if (!this->slot())
-                this->setSlot(HandleHeap::heapFor(handle.slot())->allocate());
-            internalSet(handle.get());
-        } else
-            clear();
-        
-        return *this;
-    }
-
-    void clear()
-    {
-        if (this->slot())
-            internalSet(ExternalType());
-    }
-
-    enum HashTableDeletedValueType { HashTableDeletedValue };
-    const static intptr_t HashTableDeletedValueTag = 0x1;
-    Global(HashTableDeletedValueType)
-        : Handle<T>(reinterpret_cast<HandleSlot>(HashTableDeletedValueTag))
-    {
-    }
-    bool isHashTableDeletedValue() const { return slot() == reinterpret_cast<HandleSlot>(HashTableDeletedValueTag); }
-
-    template <typename U> Global(const Global<U>& other)
-        : Handle<T>(other.slot() ? HandleHeap::heapFor(other.slot())->allocate() : 0, Handle<T>::DontNullCheckSlot)
-    {
-        if (other.slot())
-            internalSet(other.get());
-    }
-    
-    Global(const Global& other)
-        : Handle<T>(other.slot() ? HandleHeap::heapFor(other.slot())->allocate() : 0, Handle<T>::DontNullCheckSlot)
-    {
-        if (other.slot())
-            internalSet(other.get());
-    }
-
-protected:
-    void internalSet(ExternalType value)
-    {
-        JSValue newValue(HandleTypes<T>::toJSValue(value));
-        HandleSlot slot = this->slot();
-        ASSERT(slot);
-        HandleHeap::heapFor(slot)->writeBarrier(slot, newValue);
-        *slot = newValue;
-    }
-
-    using Handle<T>::slot;
-    
-};
-
-}
-
-namespace WTF {
-
-template<typename P> struct HashTraits<JSC::Global<P> > : GenericHashTraits<JSC::Global<P> > {
-    static const bool emptyValueIsZero = true;
-    static JSC::Global<P> emptyValue() { return JSC::Global<P>(JSC::Global<P>::EmptyValue); }
-    static void constructDeletedValue(JSC::Global<P>& slot) { new (&slot) JSC::Global<P>(JSC::Global<P>::HashTableDeletedValue); }
-    static bool isDeletedValue(const JSC::Global<P>& value) { return value.isHashTableDeletedValue(); }
-};
-
-}
-
-#endif // Global_h
-- 
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