Remove bindings-dart

sky/engine/bindings-dart/common/ScriptWrappable.h

Index: sky/engine/bindings-dart/common/ScriptWrappable.h
diff --git a/sky/engine/bindings-dart/common/ScriptWrappable.h b/sky/engine/bindings-dart/common/ScriptWrappable.h
deleted file mode 100644
index bcb46fbf422ee264ffd34d1e2e3e524738b2c642..0000000000000000000000000000000000000000
--- a/sky/engine/bindings-dart/common/ScriptWrappable.h
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * Copyright (C) 2014 Google 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:
- *
- *     * 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 ScriptWrappable_h
-#define ScriptWrappable_h
-
-#include "platform/ScriptForbiddenScope.h"
-#include "platform/heap/Handle.h"
-#include <v8.h>
-#include "wtf/Assertions.h"
-
-// Helper to call webCoreInitializeScriptWrappableForInterface in the global namespace.
-template <class C> inline void initializeScriptWrappableHelper(C* object)
-{
-    void webCoreInitializeScriptWrappableForInterface(C*);
-    webCoreInitializeScriptWrappableForInterface(object);
-}
-
-namespace blink {
-
-// Forward declarations.
-class DartWrapperInfo;
-class DartMultiWrapperInfo;
-struct WrapperTypeInfo;
-
-/**
- * The base class of all wrappable objects.
- *
- * This class provides the internal pointer to be stored in the wrapper objects,
- * and its conversions from / to the DOM instances.
- *
- * Note that this class must not have vtbl (any virtual function) or any member
- * variable which increase the size of instances.  Some of the classes sensitive
- * to the size inherit from this class.  So this class must be zero size.
- */
-class ScriptWrappableBase {
-public:
-    template <class T> static T* fromInternalPointer(ScriptWrappableBase* internalPointer)
-    {
-        // Check if T* is castable to ScriptWrappableBase*, which means T
-        // doesn't have two or more ScriptWrappableBase as superclasses.
-        // If T has two ScriptWrappableBase as superclasses, conversions
-        // from T* to ScriptWrappableBase* are ambiguous.
-        ASSERT(static_cast<ScriptWrappableBase*>(static_cast<T*>(internalPointer)));
-        return static_cast<T*>(internalPointer);
-    }
-    ScriptWrappableBase* toInternalPointer() { return this; }
-};
-
-// An optimization to avoid in the common case the cost of map lookups when
-// finding the V8 or Dart wrapper for a Blink object and to quickly find the
-// most specific V8 or Dart wrapper type for a Blink object.
-class ScriptWrappable : public ScriptWrappableBase {
-public:
-    class TaggedPointer {
-    private:
-        enum {
-            kTypeInfoTag = 0x0,
-            kV8WrapperTag = 0x1,
-            kDartWrapperTag = 0x2,
-            kMultiWrapperTag = 0x3
-        };
-        static const intptr_t kWrappableBitMask = 0x3;
-
-        uintptr_t m_ptr;
-
-    public:
-        TaggedPointer() : m_ptr(0) { }
-
-        explicit TaggedPointer(const WrapperTypeInfo* info) : m_ptr(reinterpret_cast<uintptr_t>(info) | kTypeInfoTag)
-        {
-            // Assert incoming pointer is non-null and 4-byte aligned.
-            ASSERT(info && ((reinterpret_cast<uintptr_t>(info) & kWrappableBitMask) == 0));
-        }
-
-        explicit TaggedPointer(v8::Object* info) : m_ptr(reinterpret_cast<uintptr_t>(info) | kV8WrapperTag)
-        {
-            // Assert incoming pointer is non-null and 4-byte aligned.
-            ASSERT(info && ((reinterpret_cast<uintptr_t>(info) & kWrappableBitMask) == 0));
-        }
-
-        explicit TaggedPointer(DartWrapperInfo* info) : m_ptr(reinterpret_cast<uintptr_t>(info) | kDartWrapperTag)
-        {
-            // Assert incoming pointer is non-null and 4-byte aligned.
-            ASSERT(info && ((reinterpret_cast<uintptr_t>(info) & kWrappableBitMask) == 0));
-        }
-
-        explicit TaggedPointer(DartMultiWrapperInfo* info) : m_ptr(reinterpret_cast<uintptr_t>(info) | kMultiWrapperTag)
-        {
-            // Assert incoming pointer is non-null and 4-byte aligned.
-            ASSERT(info && ((reinterpret_cast<uintptr_t>(info) & kWrappableBitMask) == 0));
-        }
-
-        inline bool isEmpty() const
-        {
-            return !m_ptr;
-        }
-
-        inline bool isWrapperTypeInfo() const
-        {
-            return (m_ptr & kWrappableBitMask) == kTypeInfoTag;
-        }
-
-        inline bool isV8Wrapper() const
-        {
-            return (m_ptr & kWrappableBitMask) == kV8WrapperTag;
-        }
-
-        inline bool isDartWrapperInfo() const
-        {
-            return (m_ptr & kWrappableBitMask) == kDartWrapperTag;
-        }
-
-        inline bool isDartMultiWrapperInfo() const
-        {
-            return (m_ptr & kWrappableBitMask) == kMultiWrapperTag;
-        }
-
-        inline const WrapperTypeInfo* wrapperTypeInfo() const
-        {
-            return reinterpret_cast<const WrapperTypeInfo*>(m_ptr & ~kWrappableBitMask);
-        }
-
-        inline v8::Object* v8Wrapper() const
-        {
-            return reinterpret_cast<v8::Object*>(m_ptr & ~kWrappableBitMask);
-        }
-
-        inline DartWrapperInfo* dartWrapperInfo() const
-        {
-            return reinterpret_cast<DartWrapperInfo*>(m_ptr & ~kWrappableBitMask);
-        }
-
-        inline DartMultiWrapperInfo* dartMultiWrapperInfo() const
-        {
-            return reinterpret_cast<DartMultiWrapperInfo*>(m_ptr & ~kWrappableBitMask);
-        }
-
-        inline void clear()
-        {
-            m_ptr = 0;
-        }
-    };
-
-    COMPILE_ASSERT(sizeof(TaggedPointer) == sizeof(void*), taggedPointerIsNotOneWord);
-
-public:
-    ScriptWrappable() : m_v8WrapperOrTypeInfo(), m_dartWrapperInfo() { }
-
-    // Wrappables need to be initialized with their most derived type for which
-    // bindings exist, in much the same way that certain other types need to be
-    // adopted and so forth. The overloaded initializeScriptWrappableForInterface()
-    // functions are implemented by the generated V8 bindings code. Declaring the
-    // extern function in the template avoids making a centralized header of all
-    // the bindings in the universe. C++11's extern template feature may provide
-    // a cleaner solution someday.
-    // FIXME: Also initialize Dart type info.
-    template <class C> static void init(C* object)
-    {
-        initializeScriptWrappableHelper(object);
-    }
-
-    inline const WrapperTypeInfo* getTypeInfo() const;
-    inline void setTypeInfo(const WrapperTypeInfo* info);
-
-    inline bool containsV8Wrapper() const;
-    inline void setV8Wrapper(v8::Object* wrapper);
-    inline v8::Object* getV8Wrapper() const;
-    inline void clearV8Wrapper(v8::Local<v8::Object> wrapper, v8::Persistent<v8::Object>* persistent);
-
-    inline void setDartWrapper(void* domData, void* wrapper);
-    inline void* getDartWrapper(void * domData) const;
-    inline void clearDartWrapper(void* domData);
-
-    static bool wrapperCanBeStoredInObject(const void*) { return false; }
-    static bool wrapperCanBeStoredInObject(const ScriptWrappable*) { return true; }
-
-    static ScriptWrappable* fromObject(const void*)
-    {
-        ASSERT_NOT_REACHED();
-        return 0;
-    }
-
-    static ScriptWrappable* fromObject(ScriptWrappable* object)
-    {
-        return object;
-    }
-
-#if !ENABLE(OILPAN)
-protected:
-    virtual ~ScriptWrappable()
-    {
-        // We must not get deleted as long as we contain a wrapper. If this happens, we screwed up ref
-        // counting somewhere. Crash here instead of crashing during a later gc cycle.
-        RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(m_v8WrapperOrTypeInfo.isWrapperTypeInfo());
-        RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(m_dartWrapperInfo.isEmpty());
-        // Assert initialization via init() even if not subsequently wrapped.
-        ASSERT(!m_v8WrapperOrTypeInfo.isEmpty());
-        // Break UAF attempts to wrap.
-        m_v8WrapperOrTypeInfo.clear();
-    }
-#endif
-    // With Oilpan we don't need a ScriptWrappable destructor.
-    //
-    // - 'RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(!containsWrapper())' is not needed
-    // because Oilpan is not using reference counting at all. If containsWrapper() is true,
-    // it means that ScriptWrappable still has a wrapper. In this case, the destructor
-    // must not be called since the wrapper has a persistent handle back to this ScriptWrappable object.
-    // Assuming that Oilpan's GC is correct (If we cannot assume this, a lot of more things are
-    // already broken), we must not hit the RELEASE_ASSERT.
-    //
-    // - 'm_wrapperOrTypeInfo = 0' is not needed because Oilpan's GC zeroes out memory when
-    // the memory is collected and added to a free list.
-
-private:
-    // A tagged pointer to this object's V8 or Dart peer. It may contain:
-    // -- nothing, transiently during construction/destruction
-    // -- WrapperTypeInfo, if this object has no peers
-    // -- v8::Object, if this object has a V8 peer in the main world and no Dart
-    //    peer
-    // -- DartWrapperInfo, if this object has one Dart peer and possibly a V8
-    //    peer in the main world
-    // -- DartMultiWrapperInfo, if this object has more than one Dart peer and
-    //    possibly a V8 peer in the main world
-    TaggedPointer m_v8WrapperOrTypeInfo;
-    TaggedPointer m_dartWrapperInfo;
-};
-
-} // namespace blink
-
-#include "bindings/core/dart/DartScriptWrappable.h"
-#include "bindings/core/v8/V8ScriptWrappable.h"
-
-#endif // ScriptWrappable_h