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 166bc27d6eefbb37de8962599232342e7fbb9dc2..86602d66f86fb6077ef4df698950292d8c716adc 100644
--- a/Source/bindings/v8/V8Binding.h
+++ b/Source/bindings/v8/V8Binding.h
@@ -46,673 +46,683 @@
 
 namespace WebCore {
 
-    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)
+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)
     {
         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)
-        {
-            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 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);
+};
+
+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 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;
-    };
+    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;
+};
 
 } // namespace WebCore