Revert of Ensure DOMWrapperWorld always exists in all webkit_unit_tests

Source/bindings/v8/V8Binding.h

Index: Source/bindings/v8/V8Binding.h
diff --git a/Source/bindings/v8/V8Binding.h b/Source/bindings/v8/V8Binding.h
index 86602d66f86fb6077ef4df698950292d8c716adc..166bc27d6eefbb37de8962599232342e7fbb9dc2 100644
--- a/Source/bindings/v8/V8Binding.h
+++ b/Source/bindings/v8/V8Binding.h
@@ -46,683 +46,673 @@
 
 namespace WebCore {
 
-class DOMWindow;
-class Document;
-class EventListener;
-class ExecutionContext;
-class ExceptionState;
-class LocalFrame;
-class NodeFilter;
-class ScriptWrappable;
-class V8PerContextData;
-class XPathNSResolver;
-
-const int kMaxRecursionDepth = 22;
-
-// Schedule a JavaScript error to be thrown.
-v8::Handle<v8::Value> throwError(V8ErrorType, const String&, v8::Isolate*);
-
-// Schedule a JavaScript error to be thrown.
-v8::Handle<v8::Value> throwError(v8::Handle<v8::Value>, v8::Isolate*);
-
-// A helper for throwing JavaScript TypeError.
-v8::Handle<v8::Value> throwTypeError(const String&, v8::Isolate*);
-
-v8::ArrayBuffer::Allocator* v8ArrayBufferAllocator();
-
-inline v8::Handle<v8::Value> argumentOrNull(const v8::FunctionCallbackInfo<v8::Value>& info, int index)
-{
-    return index >= info.Length() ? v8::Local<v8::Value>() : info[index];
-}
-
-template<typename CallbackInfo, typename V>
-inline void v8SetReturnValue(const CallbackInfo& info, V v)
-{
-    info.GetReturnValue().Set(v);
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueBool(const CallbackInfo& info, bool v)
-{
-    info.GetReturnValue().Set(v);
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueInt(const CallbackInfo& info, int v)
-{
-    info.GetReturnValue().Set(v);
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueUnsigned(const CallbackInfo& info, unsigned v)
-{
-    info.GetReturnValue().Set(v);
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueNull(const CallbackInfo& info)
-{
-    info.GetReturnValue().SetNull();
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueUndefined(const CallbackInfo& info)
-{
-    info.GetReturnValue().SetUndefined();
-}
-
-template<typename CallbackInfo>
-inline void v8SetReturnValueEmptyString(const CallbackInfo& info)
-{
-    info.GetReturnValue().SetEmptyString();
-}
-
-template <class CallbackInfo>
-inline void v8SetReturnValueString(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
-{
-    if (string.isNull()) {
-        v8SetReturnValueEmptyString(info);
-        return;
-    }
-    V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
-}
-
-template <class CallbackInfo>
-inline void v8SetReturnValueStringOrNull(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
-{
-    if (string.isNull()) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
-}
-
-template <class CallbackInfo>
-inline void v8SetReturnValueStringOrUndefined(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
-{
-    if (string.isNull()) {
-        v8SetReturnValueUndefined(info);
-        return;
-    }
-    V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
-}
-
-// Convert v8::String to a WTF::String. If the V8 string is not already
-// an external string then it is transformed into an external string at this
-// point to avoid repeated conversions.
-inline String toCoreString(v8::Handle<v8::String> value)
-{
-    return v8StringToWebCoreString<String>(value, Externalize);
-}
-
-inline String toCoreStringWithNullCheck(v8::Handle<v8::String> value)
-{
-    if (value.IsEmpty() || value->IsNull())
-        return String();
-    return toCoreString(value);
-}
-
-inline String toCoreStringWithUndefinedOrNullCheck(v8::Handle<v8::String> value)
-{
-    if (value.IsEmpty() || value->IsNull() || value->IsUndefined())
-        return String();
-    return toCoreString(value);
-}
-
-inline AtomicString toCoreAtomicString(v8::Handle<v8::String> value)
-{
-    return v8StringToWebCoreString<AtomicString>(value, Externalize);
-}
-
-// This method will return a null String if the v8::Value does not contain a v8::String.
-// It will not call ToString() on the v8::Value. If you want ToString() to be called,
-// please use the V8TRYCATCH_FOR_V8STRINGRESOURCE_*() macros instead.
-inline String toCoreStringWithUndefinedOrNullCheck(v8::Handle<v8::Value> value)
-{
-    if (value.IsEmpty() || !value->IsString())
-        return String();
-    return toCoreString(value.As<v8::String>());
-}
-
-// Convert a string to a V8 string.
-// Return a V8 external string that shares the underlying buffer with the given
-// WebCore string. The reference counting mechanism is used to keep the
-// underlying buffer alive while the string is still live in the V8 engine.
-inline v8::Handle<v8::String> v8String(v8::Isolate* isolate, const String& string)
-{
-    if (string.isNull())
-        return v8::String::Empty(isolate);
-    return V8PerIsolateData::from(isolate)->stringCache()->v8ExternalString(string.impl(), isolate);
-}
-
-inline v8::Handle<v8::String> v8AtomicString(v8::Isolate* isolate, const char* str)
-{
-    ASSERT(isolate);
-    return v8::String::NewFromUtf8(isolate, str, v8::String::kInternalizedString, strlen(str));
-}
-
-inline v8::Handle<v8::String> v8AtomicString(v8::Isolate* isolate, const char* str, size_t length)
-{
-    ASSERT(isolate);
-    return v8::String::NewFromUtf8(isolate, str, v8::String::kInternalizedString, length);
-}
-
-inline v8::Handle<v8::Value> v8Undefined()
-{
-    return v8::Handle<v8::Value>();
-}
-
-template <class T>
-struct V8ValueTraits {
-    static inline v8::Handle<v8::Value> arrayV8Value(const T& value, v8::Isolate* isolate)
-    {
-        return toV8(WTF::getPtr(value), v8::Handle<v8::Object>(), isolate);
-    }
-};
-
-template<>
-struct V8ValueTraits<String> {
-    static inline v8::Handle<v8::Value> arrayV8Value(const String& value, v8::Isolate* isolate)
-    {
-        return v8String(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<AtomicString> {
-    static inline v8::Handle<v8::Value> arrayV8Value(const AtomicString& value, v8::Isolate* isolate)
-    {
-        return v8String(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<unsigned> {
-    static inline v8::Handle<v8::Value> arrayV8Value(const unsigned& value, v8::Isolate* isolate)
-    {
-        return v8::Integer::NewFromUnsigned(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<unsigned long> {
-    static inline v8::Handle<v8::Value> arrayV8Value(const unsigned long& value, v8::Isolate* isolate)
-    {
-        return v8::Integer::NewFromUnsigned(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<float> {
-    static inline v8::Handle<v8::Value> arrayV8Value(const float& value, v8::Isolate* isolate)
-    {
-        return v8::Number::New(isolate, value);
-    }
-};
-
-template<>
-struct V8ValueTraits<double> {
-    static inline v8::Handle<v8::Value> arrayV8Value(const double& value, v8::Isolate* isolate)
-    {
-        return v8::Number::New(isolate, value);
-    }
-};
-
-template<typename T, size_t inlineCapacity>
-v8::Handle<v8::Value> v8Array(const Vector<T, inlineCapacity>& iterator, v8::Isolate* isolate)
-{
-    v8::Local<v8::Array> result = v8::Array::New(isolate, iterator.size());
-    int index = 0;
-    typename Vector<T, inlineCapacity>::const_iterator end = iterator.end();
-    typedef V8ValueTraits<T> TraitsType;
-    for (typename Vector<T, inlineCapacity>::const_iterator iter = iterator.begin(); iter != end; ++iter)
-        result->Set(v8::Integer::New(isolate, index++), TraitsType::arrayV8Value(*iter, isolate));
-    return result;
-}
-
-template<typename T, size_t inlineCapacity>
-v8::Handle<v8::Value> v8Array(const HeapVector<T, inlineCapacity>& iterator, v8::Isolate* isolate)
-{
-    v8::Local<v8::Array> result = v8::Array::New(isolate, iterator.size());
-    int index = 0;
-    typename HeapVector<T, inlineCapacity>::const_iterator end = iterator.end();
-    typedef V8ValueTraits<T> TraitsType;
-    for (typename HeapVector<T, inlineCapacity>::const_iterator iter = iterator.begin(); iter != end; ++iter)
-        result->Set(v8::Integer::New(isolate, index++), TraitsType::arrayV8Value(*iter, isolate));
-    return result;
-}
-
-// Conversion flags, used in toIntXX/toUIntXX.
-enum IntegerConversionConfiguration {
-    NormalConversion,
-    EnforceRange,
-    Clamp
-};
-
-// Convert a value to a 8-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-byte
-int8_t toInt8(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline int8_t toInt8(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toInt8(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 8-bit integer assuming the conversion cannot fail.
-int8_t toInt8(v8::Handle<v8::Value>);
-
-// Convert a value to a 8-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-octet
-uint8_t toUInt8(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline uint8_t toUInt8(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toUInt8(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 8-bit unsigned integer assuming the conversion cannot fail.
-uint8_t toUInt8(v8::Handle<v8::Value>);
-
-// Convert a value to a 16-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-short
-int16_t toInt16(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline int16_t toInt16(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toInt16(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 16-bit integer assuming the conversion cannot fail.
-int16_t toInt16(v8::Handle<v8::Value>);
-
-// Convert a value to a 16-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-unsigned-short
-uint16_t toUInt16(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline uint16_t toUInt16(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toUInt16(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 16-bit unsigned integer assuming the conversion cannot fail.
-uint16_t toUInt16(v8::Handle<v8::Value>);
-
-// Convert a value to a 32-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-long
-int32_t toInt32(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline int32_t toInt32(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toInt32(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 32-bit integer assuming the conversion cannot fail.
-int32_t toInt32(v8::Handle<v8::Value>);
-
-// Convert a value to a 32-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-unsigned-long
-uint32_t toUInt32(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline uint32_t toUInt32(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toUInt32(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 32-bit unsigned integer assuming the conversion cannot fail.
-uint32_t toUInt32(v8::Handle<v8::Value>);
-
-// Convert a value to a 64-bit signed integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-long-long
-int64_t toInt64(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline int64_t toInt64(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toInt64(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 64-bit integer assuming the conversion cannot fail.
-int64_t toInt64(v8::Handle<v8::Value>);
-
-// Convert a value to a 64-bit unsigned integer. The conversion fails if the
-// value cannot be converted to a number or the range violated per WebIDL:
-// http://www.w3.org/TR/WebIDL/#es-unsigned-long-long
-uint64_t toUInt64(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
-inline uint64_t toUInt64(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
-{
-    return toUInt64(value, NormalConversion, exceptionState);
-}
-
-// Convert a value to a 64-bit unsigned integer assuming the conversion cannot fail.
-uint64_t toUInt64(v8::Handle<v8::Value>);
-
-// Convert a value to a single precision float, which might fail.
-float toFloat(v8::Handle<v8::Value>, ExceptionState&);
-
-// Convert a value to a single precision float assuming the conversion cannot fail.
-inline float toFloat(v8::Local<v8::Value> value)
-{
-    return static_cast<float>(value->NumberValue());
-}
-
-inline v8::Handle<v8::Boolean> v8Boolean(bool value, v8::Isolate* isolate)
-{
-    return value ? v8::True(isolate) : v8::False(isolate);
-}
-
-inline double toCoreDate(v8::Handle<v8::Value> object)
-{
-    if (object->IsDate())
-        return v8::Handle<v8::Date>::Cast(object)->ValueOf();
-    if (object->IsNumber())
-        return object->NumberValue();
-    return std::numeric_limits<double>::quiet_NaN();
-}
-
-inline v8::Handle<v8::Value> v8DateOrNull(double value, v8::Isolate* isolate)
-{
-    ASSERT(isolate);
-    return std::isfinite(value) ? v8::Date::New(isolate, value) : v8::Handle<v8::Value>::Cast(v8::Null(isolate));
-}
-
-// FIXME: Remove the special casing for NodeFilter and XPathNSResolver.
-PassRefPtr<NodeFilter> toNodeFilter(v8::Handle<v8::Value>, v8::Isolate*);
-PassRefPtrWillBeRawPtr<XPathNSResolver> toXPathNSResolver(v8::Handle<v8::Value>, v8::Isolate*);
-
-template<class T> struct NativeValueTraits;
-
-template<>
-struct NativeValueTraits<String> {
-    static inline String nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<>, stringValue, value, String());
-        return stringValue;
-    }
-};
-
-template<>
-struct NativeValueTraits<unsigned> {
-    static inline unsigned nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        return toUInt32(value);
-    }
-};
-
-template<>
-struct NativeValueTraits<float> {
-    static inline float nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+    class DOMWindow;
+    class Document;
+    class EventListener;
+    class ExceptionState;
+    class LocalFrame;
+    class NodeFilter;
+    class ExecutionContext;
+    class ScriptWrappable;
+    class XPathNSResolver;
+
+    const int kMaxRecursionDepth = 22;
+
+    // Schedule a JavaScript error to be thrown.
+    v8::Handle<v8::Value> throwError(V8ErrorType, const String&, v8::Isolate*);
+
+    // Schedule a JavaScript error to be thrown.
+    v8::Handle<v8::Value> throwError(v8::Handle<v8::Value>, v8::Isolate*);
+
+    // A helper for throwing JavaScript TypeError.
+    v8::Handle<v8::Value> throwTypeError(const String&, v8::Isolate*);
+
+    v8::ArrayBuffer::Allocator* v8ArrayBufferAllocator();
+
+    inline v8::Handle<v8::Value> argumentOrNull(const v8::FunctionCallbackInfo<v8::Value>& info, int index)
+    {
+        return index >= info.Length() ? v8::Local<v8::Value>() : info[index];
+    }
+
+    template<typename CallbackInfo, typename V>
+    inline void v8SetReturnValue(const CallbackInfo& info, V v)
+    {
+        info.GetReturnValue().Set(v);
+    }
+
+    template<typename CallbackInfo>
+    inline void v8SetReturnValueBool(const CallbackInfo& info, bool v)
+    {
+        info.GetReturnValue().Set(v);
+    }
+
+    template<typename CallbackInfo>
+    inline void v8SetReturnValueInt(const CallbackInfo& info, int v)
+    {
+        info.GetReturnValue().Set(v);
+    }
+
+    template<typename CallbackInfo>
+    inline void v8SetReturnValueUnsigned(const CallbackInfo& info, unsigned v)
+    {
+        info.GetReturnValue().Set(v);
+    }
+
+    template<typename CallbackInfo>
+    inline void v8SetReturnValueNull(const CallbackInfo& info)
+    {
+        info.GetReturnValue().SetNull();
+    }
+
+    template<typename CallbackInfo>
+    inline void v8SetReturnValueUndefined(const CallbackInfo& info)
+    {
+        info.GetReturnValue().SetUndefined();
+    }
+
+    template<typename CallbackInfo>
+    inline void v8SetReturnValueEmptyString(const CallbackInfo& info)
+    {
+        info.GetReturnValue().SetEmptyString();
+    }
+
+    template <class CallbackInfo>
+    inline void v8SetReturnValueString(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
+    {
+        if (string.isNull()) {
+            v8SetReturnValueEmptyString(info);
+            return;
+        }
+        V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
+    }
+
+    template <class CallbackInfo>
+    inline void v8SetReturnValueStringOrNull(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
+    {
+        if (string.isNull()) {
+            v8SetReturnValueNull(info);
+            return;
+        }
+        V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
+    }
+
+    template <class CallbackInfo>
+    inline void v8SetReturnValueStringOrUndefined(const CallbackInfo& info, const String& string, v8::Isolate* isolate)
+    {
+        if (string.isNull()) {
+            v8SetReturnValueUndefined(info);
+            return;
+        }
+        V8PerIsolateData::from(isolate)->stringCache()->setReturnValueFromString(info.GetReturnValue(), string.impl());
+    }
+
+    // Convert v8::String to a WTF::String. If the V8 string is not already
+    // an external string then it is transformed into an external string at this
+    // point to avoid repeated conversions.
+    inline String toCoreString(v8::Handle<v8::String> value)
+    {
+        return v8StringToWebCoreString<String>(value, Externalize);
+    }
+
+    inline String toCoreStringWithNullCheck(v8::Handle<v8::String> value)
+    {
+        if (value.IsEmpty() || value->IsNull())
+            return String();
+        return toCoreString(value);
+    }
+
+    inline String toCoreStringWithUndefinedOrNullCheck(v8::Handle<v8::String> value)
+    {
+        if (value.IsEmpty() || value->IsNull() || value->IsUndefined())
+            return String();
+        return toCoreString(value);
+    }
+
+    inline AtomicString toCoreAtomicString(v8::Handle<v8::String> value)
+    {
+        return v8StringToWebCoreString<AtomicString>(value, Externalize);
+    }
+
+    // This method will return a null String if the v8::Value does not contain a v8::String.
+    // It will not call ToString() on the v8::Value. If you want ToString() to be called,
+    // please use the V8TRYCATCH_FOR_V8STRINGRESOURCE_*() macros instead.
+    inline String toCoreStringWithUndefinedOrNullCheck(v8::Handle<v8::Value> value)
+    {
+        if (value.IsEmpty() || !value->IsString())
+            return String();
+
+        return toCoreString(value.As<v8::String>());
+    }
+
+    // Convert a string to a V8 string.
+    // Return a V8 external string that shares the underlying buffer with the given
+    // WebCore string. The reference counting mechanism is used to keep the
+    // underlying buffer alive while the string is still live in the V8 engine.
+    inline v8::Handle<v8::String> v8String(v8::Isolate* isolate, const String& string)
+    {
+        if (string.isNull())
+            return v8::String::Empty(isolate);
+        return V8PerIsolateData::from(isolate)->stringCache()->v8ExternalString(string.impl(), isolate);
+    }
+
+    inline v8::Handle<v8::String> v8AtomicString(v8::Isolate* isolate, const char* str)
+    {
+        ASSERT(isolate);
+        return v8::String::NewFromUtf8(isolate, str, v8::String::kInternalizedString, strlen(str));
+    }
+
+    inline v8::Handle<v8::String> v8AtomicString(v8::Isolate* isolate, const char* str, size_t length)
+    {
+        ASSERT(isolate);
+        return v8::String::NewFromUtf8(isolate, str, v8::String::kInternalizedString, length);
+    }
+
+    inline v8::Handle<v8::Value> v8Undefined()
+    {
+        return v8::Handle<v8::Value>();
+    }
+
+    template <class T>
+    struct V8ValueTraits {
+        static inline v8::Handle<v8::Value> arrayV8Value(const T& value, v8::Isolate* isolate)
+        {
+            return toV8(WTF::getPtr(value), v8::Handle<v8::Object>(), isolate);
+        }
+    };
+
+    template<>
+    struct V8ValueTraits<String> {
+        static inline v8::Handle<v8::Value> arrayV8Value(const String& value, v8::Isolate* isolate)
+        {
+            return v8String(isolate, value);
+        }
+    };
+
+    template<>
+    struct V8ValueTraits<AtomicString> {
+        static inline v8::Handle<v8::Value> arrayV8Value(const AtomicString& value, v8::Isolate* isolate)
+        {
+            return v8String(isolate, value);
+        }
+    };
+
+    template<>
+    struct V8ValueTraits<unsigned> {
+        static inline v8::Handle<v8::Value> arrayV8Value(const unsigned& value, v8::Isolate* isolate)
+        {
+            return v8::Integer::NewFromUnsigned(isolate, value);
+        }
+    };
+
+    template<>
+    struct V8ValueTraits<unsigned long> {
+        static inline v8::Handle<v8::Value> arrayV8Value(const unsigned long& value, v8::Isolate* isolate)
+        {
+            return v8::Integer::NewFromUnsigned(isolate, value);
+        }
+    };
+
+    template<>
+    struct V8ValueTraits<float> {
+        static inline v8::Handle<v8::Value> arrayV8Value(const float& value, v8::Isolate* isolate)
+        {
+            return v8::Number::New(isolate, value);
+        }
+    };
+
+    template<>
+    struct V8ValueTraits<double> {
+        static inline v8::Handle<v8::Value> arrayV8Value(const double& value, v8::Isolate* isolate)
+        {
+            return v8::Number::New(isolate, value);
+        }
+    };
+
+    template<typename T, size_t inlineCapacity>
+    v8::Handle<v8::Value> v8Array(const Vector<T, inlineCapacity>& iterator, v8::Isolate* isolate)
+    {
+        v8::Local<v8::Array> result = v8::Array::New(isolate, iterator.size());
+        int index = 0;
+        typename Vector<T, inlineCapacity>::const_iterator end = iterator.end();
+        typedef V8ValueTraits<T> TraitsType;
+        for (typename Vector<T, inlineCapacity>::const_iterator iter = iterator.begin(); iter != end; ++iter)
+            result->Set(v8::Integer::New(isolate, index++), TraitsType::arrayV8Value(*iter, isolate));
+        return result;
+    }
+
+    template<typename T, size_t inlineCapacity>
+    v8::Handle<v8::Value> v8Array(const HeapVector<T, inlineCapacity>& iterator, v8::Isolate* isolate)
+    {
+        v8::Local<v8::Array> result = v8::Array::New(isolate, iterator.size());
+        int index = 0;
+        typename HeapVector<T, inlineCapacity>::const_iterator end = iterator.end();
+        typedef V8ValueTraits<T> TraitsType;
+        for (typename HeapVector<T, inlineCapacity>::const_iterator iter = iterator.begin(); iter != end; ++iter)
+            result->Set(v8::Integer::New(isolate, index++), TraitsType::arrayV8Value(*iter, isolate));
+        return result;
+    }
+
+    // Conversion flags, used in toIntXX/toUIntXX.
+    enum IntegerConversionConfiguration {
+        NormalConversion,
+        EnforceRange,
+        Clamp
+    };
+
+    // Convert a value to a 8-bit signed integer. The conversion fails if the
+    // value cannot be converted to a number or the range violated per WebIDL:
+    // http://www.w3.org/TR/WebIDL/#es-byte
+    int8_t toInt8(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
+    inline int8_t toInt8(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
+    {
+        return toInt8(value, NormalConversion, exceptionState);
+    }
+
+    // Convert a value to a 8-bit integer assuming the conversion cannot fail.
+    int8_t toInt8(v8::Handle<v8::Value>);
+
+    // Convert a value to a 8-bit unsigned integer. The conversion fails if the
+    // value cannot be converted to a number or the range violated per WebIDL:
+    // http://www.w3.org/TR/WebIDL/#es-octet
+    uint8_t toUInt8(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
+    inline uint8_t toUInt8(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
+    {
+        return toUInt8(value, NormalConversion, exceptionState);
+    }
+
+    // Convert a value to a 8-bit unsigned integer assuming the conversion cannot fail.
+    uint8_t toUInt8(v8::Handle<v8::Value>);
+
+    // Convert a value to a 16-bit signed integer. The conversion fails if the
+    // value cannot be converted to a number or the range violated per WebIDL:
+    // http://www.w3.org/TR/WebIDL/#es-short
+    int16_t toInt16(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
+    inline int16_t toInt16(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
+    {
+        return toInt16(value, NormalConversion, exceptionState);
+    }
+
+    // Convert a value to a 16-bit integer assuming the conversion cannot fail.
+    int16_t toInt16(v8::Handle<v8::Value>);
+
+    // Convert a value to a 16-bit unsigned integer. The conversion fails if the
+    // value cannot be converted to a number or the range violated per WebIDL:
+    // http://www.w3.org/TR/WebIDL/#es-unsigned-short
+    uint16_t toUInt16(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
+    inline uint16_t toUInt16(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
+    {
+        return toUInt16(value, NormalConversion, exceptionState);
+    }
+
+    // Convert a value to a 16-bit unsigned integer assuming the conversion cannot fail.
+    uint16_t toUInt16(v8::Handle<v8::Value>);
+
+    // Convert a value to a 32-bit signed integer. The conversion fails if the
+    // value cannot be converted to a number or the range violated per WebIDL:
+    // http://www.w3.org/TR/WebIDL/#es-long
+    int32_t toInt32(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
+    inline int32_t toInt32(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
+    {
+        return toInt32(value, NormalConversion, exceptionState);
+    }
+
+    // Convert a value to a 32-bit integer assuming the conversion cannot fail.
+    int32_t toInt32(v8::Handle<v8::Value>);
+
+    // Convert a value to a 32-bit unsigned integer. The conversion fails if the
+    // value cannot be converted to a number or the range violated per WebIDL:
+    // http://www.w3.org/TR/WebIDL/#es-unsigned-long
+    uint32_t toUInt32(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
+    inline uint32_t toUInt32(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
+    {
+        return toUInt32(value, NormalConversion, exceptionState);
+    }
+
+    // Convert a value to a 32-bit unsigned integer assuming the conversion cannot fail.
+    uint32_t toUInt32(v8::Handle<v8::Value>);
+
+    // Convert a value to a 64-bit signed integer. The conversion fails if the
+    // value cannot be converted to a number or the range violated per WebIDL:
+    // http://www.w3.org/TR/WebIDL/#es-long-long
+    int64_t toInt64(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
+    inline int64_t toInt64(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
+    {
+        return toInt64(value, NormalConversion, exceptionState);
+    }
+
+    // Convert a value to a 64-bit integer assuming the conversion cannot fail.
+    int64_t toInt64(v8::Handle<v8::Value>);
+
+    // Convert a value to a 64-bit unsigned integer. The conversion fails if the
+    // value cannot be converted to a number or the range violated per WebIDL:
+    // http://www.w3.org/TR/WebIDL/#es-unsigned-long-long
+    uint64_t toUInt64(v8::Handle<v8::Value>, IntegerConversionConfiguration, ExceptionState&);
+    inline uint64_t toUInt64(v8::Handle<v8::Value> value, ExceptionState& exceptionState)
+    {
+        return toUInt64(value, NormalConversion, exceptionState);
+    }
+
+    // Convert a value to a 64-bit unsigned integer assuming the conversion cannot fail.
+    uint64_t toUInt64(v8::Handle<v8::Value>);
+
+    // Convert a value to a single precision float, which might fail.
+    float toFloat(v8::Handle<v8::Value>, ExceptionState&);
+
+    // Convert a value to a single precision float assuming the conversion cannot fail.
+    inline float toFloat(v8::Local<v8::Value> value)
     {
         return static_cast<float>(value->NumberValue());
     }
-};
-
-template<>
-struct NativeValueTraits<double> {
-    static inline double nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        return static_cast<double>(value->NumberValue());
-    }
-};
-
-template<>
-struct NativeValueTraits<v8::Handle<v8::Value> > {
-    static inline v8::Handle<v8::Value> nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
-    {
-        return value;
-    }
-};
-
-// Converts a JavaScript value to an array as per the Web IDL specification:
-// http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-array
-template <class T, class V8T>
-Vector<RefPtr<T> > toRefPtrNativeArrayUnchecked(v8::Local<v8::Value> v8Value, uint32_t length, v8::Isolate* isolate, bool* success = 0)
-{
-    Vector<RefPtr<T> > result;
-    result.reserveInitialCapacity(length);
-    v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
-    for (uint32_t i = 0; i < length; ++i) {
-        v8::Handle<v8::Value> element = object->Get(i);
-        if (V8T::hasInstance(element, isolate)) {
-            v8::Handle<v8::Object> elementObject = v8::Handle<v8::Object>::Cast(element);
-            result.uncheckedAppend(V8T::toNative(elementObject));
-        } else {
-            if (success)
-                *success = false;
-            throwTypeError("Invalid Array element type", isolate);
+
+    inline v8::Handle<v8::Boolean> v8Boolean(bool value, v8::Isolate* isolate)
+    {
+        return value ? v8::True(isolate) : v8::False(isolate);
+    }
+
+    inline double toCoreDate(v8::Handle<v8::Value> object)
+    {
+        if (object->IsDate())
+            return v8::Handle<v8::Date>::Cast(object)->ValueOf();
+        if (object->IsNumber())
+            return object->NumberValue();
+        return std::numeric_limits<double>::quiet_NaN();
+    }
+
+    inline v8::Handle<v8::Value> v8DateOrNull(double value, v8::Isolate* isolate)
+    {
+        ASSERT(isolate);
+        return std::isfinite(value) ? v8::Date::New(isolate, value) : v8::Handle<v8::Value>::Cast(v8::Null(isolate));
+    }
+
+    // FIXME: Remove the special casing for NodeFilter and XPathNSResolver.
+    PassRefPtr<NodeFilter> toNodeFilter(v8::Handle<v8::Value>, v8::Isolate*);
+    PassRefPtrWillBeRawPtr<XPathNSResolver> toXPathNSResolver(v8::Handle<v8::Value>, v8::Isolate*);
+
+    template<class T> struct NativeValueTraits;
+
+    template<>
+    struct NativeValueTraits<String> {
+        static inline String nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+        {
+            V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<>, stringValue, value, String());
+            return stringValue;
+        }
+    };
+
+    template<>
+    struct NativeValueTraits<unsigned> {
+        static inline unsigned nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+        {
+            return toUInt32(value);
+        }
+    };
+
+    template<>
+    struct NativeValueTraits<float> {
+        static inline float nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+        {
+            return static_cast<float>(value->NumberValue());
+        }
+    };
+
+    template<>
+    struct NativeValueTraits<double> {
+        static inline double nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+        {
+            return static_cast<double>(value->NumberValue());
+        }
+    };
+
+    template<>
+    struct NativeValueTraits<v8::Handle<v8::Value> > {
+        static inline v8::Handle<v8::Value> nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+        {
+            return value;
+        }
+    };
+
+    // Converts a JavaScript value to an array as per the Web IDL specification:
+    // http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-array
+    template <class T, class V8T>
+    Vector<RefPtr<T> > toRefPtrNativeArrayUnchecked(v8::Local<v8::Value> v8Value, uint32_t length, v8::Isolate* isolate, bool* success = 0)
+    {
+        Vector<RefPtr<T> > result;
+        result.reserveInitialCapacity(length);
+        v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
+        for (uint32_t i = 0; i < length; ++i) {
+            v8::Handle<v8::Value> element = object->Get(i);
+
+            if (V8T::hasInstance(element, isolate)) {
+                v8::Handle<v8::Object> elementObject = v8::Handle<v8::Object>::Cast(element);
+                result.uncheckedAppend(V8T::toNative(elementObject));
+            } else {
+                if (success)
+                    *success = false;
+                throwTypeError("Invalid Array element type", isolate);
+                return Vector<RefPtr<T> >();
+            }
+        }
+        return result;
+    }
+
+    v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value>, uint32_t& length, v8::Isolate*);
+
+    template <class T, class V8T>
+    Vector<RefPtr<T> > toRefPtrNativeArray(v8::Handle<v8::Value> value, int argumentIndex, v8::Isolate* isolate, bool* success = 0)
+    {
+        if (success)
+            *success = true;
+
+        v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
+        uint32_t length = 0;
+        if (value->IsArray()) {
+            length = v8::Local<v8::Array>::Cast(v8Value)->Length();
+        } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
+            throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argumentIndex), isolate);
             return Vector<RefPtr<T> >();
         }
-    }
-    return result;
-}
-
-v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value>, uint32_t& length, v8::Isolate*);
-
-template <class T, class V8T>
-Vector<RefPtr<T> > toRefPtrNativeArray(v8::Handle<v8::Value> value, int argumentIndex, v8::Isolate* isolate, bool* success = 0)
-{
-    if (success)
-        *success = true;
-
-    v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
-    uint32_t length = 0;
-    if (value->IsArray()) {
-        length = v8::Local<v8::Array>::Cast(v8Value)->Length();
-    } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
-        throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argumentIndex), isolate);
-        return Vector<RefPtr<T> >();
-    }
-    return toRefPtrNativeArrayUnchecked<T, V8T>(v8Value, length, isolate, success);
-}
-
-template <class T, class V8T>
-Vector<RefPtr<T> > toRefPtrNativeArray(v8::Handle<v8::Value> value, const String& propertyName, v8::Isolate* isolate, bool* success = 0)
-{
-    if (success)
-        *success = true;
-
-    v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
-    uint32_t length = 0;
-    if (value->IsArray()) {
-        length = v8::Local<v8::Array>::Cast(v8Value)->Length();
-    } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
-        throwTypeError(ExceptionMessages::notASequenceTypeProperty(propertyName), isolate);
-        return Vector<RefPtr<T> >();
-    }
-    return toRefPtrNativeArrayUnchecked<T, V8T>(v8Value, length, isolate, success);
-}
-
-// Converts a JavaScript value to an array as per the Web IDL specification:
-// http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-array
-template <class T>
-Vector<T> toNativeArray(v8::Handle<v8::Value> value, int argumentIndex, v8::Isolate* isolate)
-{
-    v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
-    uint32_t length = 0;
-    if (value->IsArray()) {
-        length = v8::Local<v8::Array>::Cast(v8Value)->Length();
-    } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
-        throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argumentIndex), isolate);
-        return Vector<T>();
-    }
-
-    Vector<T> result;
-    result.reserveInitialCapacity(length);
-    typedef NativeValueTraits<T> TraitsType;
-    v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
-    for (uint32_t i = 0; i < length; ++i)
-        result.uncheckedAppend(TraitsType::nativeValue(object->Get(i), isolate));
-    return result;
-}
-
-template <class T>
-Vector<T> toNativeArguments(const v8::FunctionCallbackInfo<v8::Value>& info, int startIndex)
-{
-    ASSERT(startIndex <= info.Length());
-    Vector<T> result;
-    typedef NativeValueTraits<T> TraitsType;
-    int length = info.Length();
-    result.reserveInitialCapacity(length);
-    for (int i = startIndex; i < length; ++i)
-        result.uncheckedAppend(TraitsType::nativeValue(info[i], info.GetIsolate()));
-    return result;
-}
-
-// Validates that the passed object is a sequence type per WebIDL spec
-// http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-sequence
-inline v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value> value, uint32_t& length, v8::Isolate* isolate)
-{
-    // Attempt converting to a sequence if the value is not already an array but is
-    // any kind of object except for a native Date object or a native RegExp object.
-    ASSERT(!value->IsArray());
-    // FIXME: Do we really need to special case Date and RegExp object?
-    // https://www.w3.org/Bugs/Public/show_bug.cgi?id=22806
-    if (!value->IsObject() || value->IsDate() || value->IsRegExp()) {
-        // The caller is responsible for reporting a TypeError.
-        return v8Undefined();
-    }
-
-    v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
-    v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
-    v8::Local<v8::String> lengthSymbol = v8AtomicString(isolate, "length");
-
-    // FIXME: The specification states that the length property should be used as fallback, if value
-    // is not a platform object that supports indexed properties. If it supports indexed properties,
-    // length should actually be one greater than value’s maximum indexed property index.
-    V8TRYCATCH(v8::Local<v8::Value>, lengthValue, object->Get(lengthSymbol));
-
-    if (lengthValue->IsUndefined() || lengthValue->IsNull()) {
-        // The caller is responsible for reporting a TypeError.
-        return v8Undefined();
-    }
-
-    V8TRYCATCH(uint32_t, sequenceLength, lengthValue->Int32Value());
-    length = sequenceLength;
-    return v8Value;
-}
-
-v8::Isolate* toIsolate(ExecutionContext*);
-v8::Isolate* toIsolate(LocalFrame*);
-
-WrapperWorldType worldType(v8::Isolate*);
-WrapperWorldType worldTypeInMainThread(v8::Isolate*);
-
-DOMWindow* toDOMWindow(v8::Handle<v8::Value>, v8::Isolate*);
-DOMWindow* toDOMWindow(v8::Handle<v8::Context>);
-ExecutionContext* toExecutionContext(v8::Handle<v8::Context>);
-
-DOMWindow* callingDOMWindow(v8::Isolate*);
-ExecutionContext* callingExecutionContext(v8::Isolate*);
-DOMWindow* enteredDOMWindow(v8::Isolate*);
-Document* currentDocument(v8::Isolate*);
-ExecutionContext* currentExecutionContext(v8::Isolate*);
-
-// Returns a V8 context associated with a ExecutionContext and a DOMWrapperWorld.
-// This method returns an empty context if there is no frame or the frame is already detached.
-v8::Local<v8::Context> toV8Context(ExecutionContext*, DOMWrapperWorld*);
-// Returns a V8 context associated with a LocalFrame and a DOMWrapperWorld.
-// This method returns an empty context if the frame is already detached.
-v8::Local<v8::Context> toV8Context(v8::Isolate*, LocalFrame*, DOMWrapperWorld*);
-
-// Returns the frame object of the window object associated with
-// a context, if the window is currently being displayed in the LocalFrame.
-LocalFrame* toFrameIfNotDetached(v8::Handle<v8::Context>);
-
-// If the current context causes out of memory, JavaScript setting
-// is disabled and it returns true.
-bool handleOutOfMemory();
-v8::Local<v8::Value> handleMaxRecursionDepthExceeded(v8::Isolate*);
-void crashIfV8IsDead();
-
-inline bool isUndefinedOrNull(v8::Handle<v8::Value> value)
-{
-    return value->IsNull() || value->IsUndefined();
-}
-v8::Handle<v8::Function> getBoundFunction(v8::Handle<v8::Function>);
-
-// Attaches |environment| to |function| and returns it.
-inline v8::Local<v8::Function> createClosure(v8::FunctionCallback function, v8::Handle<v8::Value> environment, v8::Isolate* isolate)
-{
-    return v8::Function::New(isolate, function, environment);
-}
-
-// FIXME: This will be soon embedded in the generated code.
-template<class Collection> static void indexedPropertyEnumerator(const v8::PropertyCallbackInfo<v8::Array>& info)
-{
-    Collection* collection = reinterpret_cast<Collection*>(info.Holder()->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex));
-    int length = collection->length();
-    v8::Handle<v8::Array> properties = v8::Array::New(info.GetIsolate(), length);
-    for (int i = 0; i < length; ++i) {
-        // FIXME: Do we need to check that the item function returns a non-null value for this index?
-        v8::Handle<v8::Integer> integer = v8::Integer::New(info.GetIsolate(), i);
-        properties->Set(integer, integer);
-    }
-    v8SetReturnValue(info, properties);
-}
-
-v8::Local<v8::Value> getHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, const char*);
-v8::Local<v8::Value> getHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, v8::Handle<v8::String>);
-bool setHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, const char*, v8::Handle<v8::Value>);
-bool setHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, v8::Handle<v8::String>, v8::Handle<v8::Value>);
-bool deleteHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, const char*);
-bool deleteHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, v8::Handle<v8::String>);
-v8::Local<v8::Value> getHiddenValueFromMainWorldWrapper(v8::Isolate*, ScriptWrappable*, const char*);
-v8::Local<v8::Value> getHiddenValueFromMainWorldWrapper(v8::Isolate*, ScriptWrappable*, v8::Handle<v8::String>);
-
-// These methods store hidden values into an array that is stored in the internal field of a DOM wrapper.
-void addHiddenValueToArray(v8::Handle<v8::Object>, v8::Local<v8::Value>, int cacheIndex, v8::Isolate*);
-void removeHiddenValueFromArray(v8::Handle<v8::Object>, v8::Local<v8::Value>, int cacheIndex, v8::Isolate*);
-void moveEventListenerToNewWrapper(v8::Handle<v8::Object>, EventListener* oldValue, v8::Local<v8::Value> newValue, int cacheIndex, v8::Isolate*);
-
-// Converts a DOM object to a v8 value.
-// This is a no-inline version of toV8(). If you want to call toV8()
-// without creating #include cycles, you can use this function instead.
-// Each specialized implementation will be generated.
-template<typename T>
-v8::Handle<v8::Value> toV8NoInline(T* impl, v8::Handle<v8::Object> creationContext, v8::Isolate*);
-
-// Result values for platform object 'deleter' methods,
-// http://www.w3.org/TR/WebIDL/#delete
-enum DeleteResult {
-    DeleteSuccess,
-    DeleteReject,
-    DeleteUnknownProperty
-};
-
-class V8IsolateInterruptor : public ThreadState::Interruptor {
-public:
-    explicit V8IsolateInterruptor(v8::Isolate* isolate) : m_isolate(isolate) { }
-
-    static void onInterruptCallback(v8::Isolate* isolate, void* data)
-    {
-        reinterpret_cast<V8IsolateInterruptor*>(data)->onInterrupted();
-    }
-
-    virtual void requestInterrupt() OVERRIDE
-    {
-        m_isolate->RequestInterrupt(&onInterruptCallback, this);
-    }
-
-    virtual void clearInterrupt() OVERRIDE
-    {
-        m_isolate->ClearInterrupt();
-    }
-
-private:
-    v8::Isolate* m_isolate;
-};
-
-class V8BindingTestScope {
-public:
-    static PassOwnPtr<V8BindingTestScope> create(v8::Isolate*);
-
-private:
-    explicit V8BindingTestScope(v8::Isolate*);
-
-    v8::HandleScope m_handleScope;
-    v8::Handle<v8::Context> m_context;
-    v8::Context::Scope m_contextScope;
-    RefPtr<DOMWrapperWorld> m_world;
-    OwnPtr<V8PerContextData> m_perContextData;
-};
+
+        return toRefPtrNativeArrayUnchecked<T, V8T>(v8Value, length, isolate, success);
+    }
+
+    template <class T, class V8T>
+    Vector<RefPtr<T> > toRefPtrNativeArray(v8::Handle<v8::Value> value, const String& propertyName, v8::Isolate* isolate, bool* success = 0)
+    {
+        if (success)
+            *success = true;
+
+        v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
+        uint32_t length = 0;
+        if (value->IsArray()) {
+            length = v8::Local<v8::Array>::Cast(v8Value)->Length();
+        } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
+            throwTypeError(ExceptionMessages::notASequenceTypeProperty(propertyName), isolate);
+            return Vector<RefPtr<T> >();
+        }
+
+        return toRefPtrNativeArrayUnchecked<T, V8T>(v8Value, length, isolate, success);
+    }
+
+    // Converts a JavaScript value to an array as per the Web IDL specification:
+    // http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-array
+    template <class T>
+    Vector<T> toNativeArray(v8::Handle<v8::Value> value, int argumentIndex, v8::Isolate* isolate)
+    {
+        v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
+        uint32_t length = 0;
+        if (value->IsArray()) {
+            length = v8::Local<v8::Array>::Cast(v8Value)->Length();
+        } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
+            throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argumentIndex), isolate);
+            return Vector<T>();
+        }
+
+        Vector<T> result;
+        result.reserveInitialCapacity(length);
+        typedef NativeValueTraits<T> TraitsType;
+        v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
+        for (uint32_t i = 0; i < length; ++i)
+            result.uncheckedAppend(TraitsType::nativeValue(object->Get(i), isolate));
+        return result;
+    }
+
+    template <class T>
+    Vector<T> toNativeArguments(const v8::FunctionCallbackInfo<v8::Value>& info, int startIndex)
+    {
+        ASSERT(startIndex <= info.Length());
+        Vector<T> result;
+        typedef NativeValueTraits<T> TraitsType;
+        int length = info.Length();
+        result.reserveInitialCapacity(length);
+        for (int i = startIndex; i < length; ++i)
+            result.uncheckedAppend(TraitsType::nativeValue(info[i], info.GetIsolate()));
+        return result;
+    }
+
+    // Validates that the passed object is a sequence type per WebIDL spec
+    // http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-sequence
+    inline v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value> value, uint32_t& length, v8::Isolate* isolate)
+    {
+        // Attempt converting to a sequence if the value is not already an array but is
+        // any kind of object except for a native Date object or a native RegExp object.
+        ASSERT(!value->IsArray());
+        // FIXME: Do we really need to special case Date and RegExp object?
+        // https://www.w3.org/Bugs/Public/show_bug.cgi?id=22806
+        if (!value->IsObject() || value->IsDate() || value->IsRegExp()) {
+            // The caller is responsible for reporting a TypeError.
+            return v8Undefined();
+        }
+
+        v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
+        v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
+        v8::Local<v8::String> lengthSymbol = v8AtomicString(isolate, "length");
+
+        // FIXME: The specification states that the length property should be used as fallback, if value
+        // is not a platform object that supports indexed properties. If it supports indexed properties,
+        // length should actually be one greater than value’s maximum indexed property index.
+        V8TRYCATCH(v8::Local<v8::Value>, lengthValue, object->Get(lengthSymbol));
+
+        if (lengthValue->IsUndefined() || lengthValue->IsNull()) {
+            // The caller is responsible for reporting a TypeError.
+            return v8Undefined();
+        }
+
+        V8TRYCATCH(uint32_t, sequenceLength, lengthValue->Int32Value());
+        length = sequenceLength;
+
+        return v8Value;
+    }
+
+    v8::Isolate* toIsolate(ExecutionContext*);
+    v8::Isolate* toIsolate(LocalFrame*);
+
+    WrapperWorldType worldType(v8::Isolate*);
+    WrapperWorldType worldTypeInMainThread(v8::Isolate*);
+
+    DOMWindow* toDOMWindow(v8::Handle<v8::Value>, v8::Isolate*);
+    DOMWindow* toDOMWindow(v8::Handle<v8::Context>);
+    ExecutionContext* toExecutionContext(v8::Handle<v8::Context>);
+
+    DOMWindow* callingDOMWindow(v8::Isolate*);
+    ExecutionContext* callingExecutionContext(v8::Isolate*);
+    DOMWindow* enteredDOMWindow(v8::Isolate*);
+    Document* currentDocument(v8::Isolate*);
+    ExecutionContext* currentExecutionContext(v8::Isolate*);
+
+    // Returns a V8 context associated with a ExecutionContext and a DOMWrapperWorld.
+    // This method returns an empty context if there is no frame or the frame is already detached.
+    v8::Local<v8::Context> toV8Context(ExecutionContext*, DOMWrapperWorld*);
+    // Returns a V8 context associated with a LocalFrame and a DOMWrapperWorld.
+    // This method returns an empty context if the frame is already detached.
+    v8::Local<v8::Context> toV8Context(v8::Isolate*, LocalFrame*, DOMWrapperWorld*);
+
+    // Returns the frame object of the window object associated with
+    // a context, if the window is currently being displayed in the LocalFrame.
+    LocalFrame* toFrameIfNotDetached(v8::Handle<v8::Context>);
+
+    // If the current context causes out of memory, JavaScript setting
+    // is disabled and it returns true.
+    bool handleOutOfMemory();
+    v8::Local<v8::Value> handleMaxRecursionDepthExceeded(v8::Isolate*);
+    void crashIfV8IsDead();
+
+    inline bool isUndefinedOrNull(v8::Handle<v8::Value> value)
+    {
+        return value->IsNull() || value->IsUndefined();
+    }
+    v8::Handle<v8::Function> getBoundFunction(v8::Handle<v8::Function>);
+
+    // Attaches |environment| to |function| and returns it.
+    inline v8::Local<v8::Function> createClosure(v8::FunctionCallback function, v8::Handle<v8::Value> environment, v8::Isolate* isolate)
+    {
+        return v8::Function::New(isolate, function, environment);
+    }
+
+    // FIXME: This will be soon embedded in the generated code.
+    template<class Collection> static void indexedPropertyEnumerator(const v8::PropertyCallbackInfo<v8::Array>& info)
+    {
+        Collection* collection = reinterpret_cast<Collection*>(info.Holder()->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex));
+        int length = collection->length();
+        v8::Handle<v8::Array> properties = v8::Array::New(info.GetIsolate(), length);
+        for (int i = 0; i < length; ++i) {
+            // FIXME: Do we need to check that the item function returns a non-null value for this index?
+            v8::Handle<v8::Integer> integer = v8::Integer::New(info.GetIsolate(), i);
+            properties->Set(integer, integer);
+        }
+        v8SetReturnValue(info, properties);
+    }
+
+    v8::Local<v8::Value> getHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, const char*);
+    v8::Local<v8::Value> getHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, v8::Handle<v8::String>);
+    bool setHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, const char*, v8::Handle<v8::Value>);
+    bool setHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, v8::Handle<v8::String>, v8::Handle<v8::Value>);
+    bool deleteHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, const char*);
+    bool deleteHiddenValue(v8::Isolate*, v8::Handle<v8::Object>, v8::Handle<v8::String>);
+    v8::Local<v8::Value> getHiddenValueFromMainWorldWrapper(v8::Isolate*, ScriptWrappable*, const char*);
+    v8::Local<v8::Value> getHiddenValueFromMainWorldWrapper(v8::Isolate*, ScriptWrappable*, v8::Handle<v8::String>);
+
+    // These methods store hidden values into an array that is stored in the internal field of a DOM wrapper.
+    void addHiddenValueToArray(v8::Handle<v8::Object>, v8::Local<v8::Value>, int cacheIndex, v8::Isolate*);
+    void removeHiddenValueFromArray(v8::Handle<v8::Object>, v8::Local<v8::Value>, int cacheIndex, v8::Isolate*);
+    void moveEventListenerToNewWrapper(v8::Handle<v8::Object>, EventListener* oldValue, v8::Local<v8::Value> newValue, int cacheIndex, v8::Isolate*);
+
+    // Converts a DOM object to a v8 value.
+    // This is a no-inline version of toV8(). If you want to call toV8()
+    // without creating #include cycles, you can use this function instead.
+    // Each specialized implementation will be generated.
+    template<typename T>
+    v8::Handle<v8::Value> toV8NoInline(T* impl, v8::Handle<v8::Object> creationContext, v8::Isolate*);
+
+    // Result values for platform object 'deleter' methods,
+    // http://www.w3.org/TR/WebIDL/#delete
+    enum DeleteResult {
+        DeleteSuccess,
+        DeleteReject,
+        DeleteUnknownProperty
+    };
+
+    class V8IsolateInterruptor : public ThreadState::Interruptor {
+    public:
+        explicit V8IsolateInterruptor(v8::Isolate* isolate) : m_isolate(isolate) { }
+
+        static void onInterruptCallback(v8::Isolate* isolate, void* data)
+        {
+            reinterpret_cast<V8IsolateInterruptor*>(data)->onInterrupted();
+        }
+
+        virtual void requestInterrupt() OVERRIDE
+        {
+            m_isolate->RequestInterrupt(&onInterruptCallback, this);
+        }
+
+        virtual void clearInterrupt() OVERRIDE
+        {
+            m_isolate->ClearInterrupt();
+        }
+
+    private:
+        v8::Isolate* m_isolate;
+    };
 
 } // namespace WebCore