V8 Binding: Introduce toNativeWithTypeCheck

Source/bindings/v8/custom/V8NodeCustom.cpp

 /*
  * Copyright (C) 2007-2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 48 matching lines @@
 // These functions are custom to prevent a wrapper lookup of the return value which is always
 // part of the arguments.
 void V8Node::insertBeforeMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::Object> holder = info.Holder();
     Node* imp = V8Node::toNative(holder);
 
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
 
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "insertBefore", "Node", info.Holder(), info.GetIsolate());
-    Node* newChild = V8Node::hasInstance(info[0], info.GetIsolate()) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0;
-    Node* refChild = V8Node::hasInstance(info[1], info.GetIsolate()) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(info[1])) : 0;
+    Node* newChild = V8Node::toNativeWithTypeCheck(info.GetIsolate(), info[0]);
+    Node* refChild = V8Node::toNativeWithTypeCheck(info.GetIsolate(), info[1]);
     imp->insertBefore(newChild, refChild, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValue(info, info[0]);
 }
 
 void V8Node::replaceChildMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::Object> holder = info.Holder();
     Node* imp = V8Node::toNative(holder);
 
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
 
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "replaceChild", "Node", info.Holder(), info.GetIsolate());
-    Node* newChild = V8Node::hasInstance(info[0], info.GetIsolate()) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0;
-    Node* oldChild = V8Node::hasInstance(info[1], info.GetIsolate()) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(info[1])) : 0;
+    Node* newChild = V8Node::toNativeWithTypeCheck(info.GetIsolate(), info[0]);
+    Node* oldChild = V8Node::toNativeWithTypeCheck(info.GetIsolate(), info[1]);
     imp->replaceChild(newChild, oldChild, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValue(info, info[1]);
 }
 
 void V8Node::removeChildMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::Object> holder = info.Holder();
     Node* imp = V8Node::toNative(holder);
 
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
 
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "removeChild", "Node", info.Holder(), info.GetIsolate());
-    Node* oldChild = V8Node::hasInstance(info[0], info.GetIsolate()) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0;
+    Node* oldChild = V8Node::toNativeWithTypeCheck(info.GetIsolate(), info[0]);
     imp->removeChild(oldChild, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValue(info, info[0]);
 }
 
 void V8Node::appendChildMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::Object> holder = info.Holder();
     Node* imp = V8Node::toNative(holder);
 
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
 
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "appendChild", "Node", info.Holder(), info.GetIsolate());
-    Node* newChild = V8Node::hasInstance(info[0], info.GetIsolate()) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0;
+    Node* newChild = V8Node::toNativeWithTypeCheck(info.GetIsolate(), info[0]);
     imp->appendChild(newChild, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValue(info, info[0]);
 }
 
 v8::Handle<v8::Object> wrap(Node* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     ASSERT(impl);
     switch (impl->nodeType()) {
@@ skipping 20 matching lines @@
         return wrap(toDocumentType(impl), creationContext, isolate);
     case Node::DOCUMENT_FRAGMENT_NODE:
         if (impl->isShadowRoot())
             return wrap(toShadowRoot(impl), creationContext, isolate);
         return wrap(toDocumentFragment(impl), creationContext, isolate);
     }
     ASSERT_NOT_REACHED();
     return V8Node::createWrapper(impl, creationContext, isolate);
 }
 } // namespace WebCore