V8 Binding: Introduce toNativeWithTypeCheck

Source/bindings/tests/results/V8TestInterfacePython.cpp

 /*
  * Copyright (C) 2013 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 87 matching lines @@
 
 static void testInterfacePythonAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "testInterfacePythonAttribute", "TestInterfacePython", info.Holder(), info.GetIsolate());
     if (!isUndefinedOrNull(jsValue) && !V8TestInterfacePython::hasInstance(jsValue, info.GetIsolate())) {
         exceptionState.throwTypeError("The provided value is not of type 'TestInterfacePython'.");
         exceptionState.throwIfNeeded();
         return;
     }
     TestInterfacePythonImplementation* imp = V8TestInterfacePython::toNative(info.Holder());
-    V8TRYCATCH_VOID(TestInterfacePythonImplementation*, cppValue, V8TestInterfacePython::hasInstance(jsValue, info.GetIsolate()) ? V8TestInterfacePython::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
+    V8TRYCATCH_VOID(TestInterfacePythonImplementation*, cppValue, V8TestInterfacePython::toNativeWithTypeCheck(info.GetIsolate(), jsValue));
     imp->setTestInterfacePythonAttribute(WTF::getPtr(cppValue));
 }
 
 static void testInterfacePythonAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestInterfacePythonImplementationV8Internal::testInterfacePythonAttributeAttributeSetter(jsValue, info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
@@ skipping 168 matching lines @@
 
 static void implementsNodeAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "implementsNodeAttribute", "TestInterfacePython", info.Holder(), info.GetIsolate());
     if (!isUndefinedOrNull(jsValue) && !V8Node::hasInstance(jsValue, info.GetIsolate())) {
         exceptionState.throwTypeError("The provided value is not of type 'Node'.");
         exceptionState.throwIfNeeded();
         return;
     }
     TestInterfacePythonImplementation* imp = V8TestInterfacePython::toNative(info.Holder());
-    V8TRYCATCH_VOID(Node*, cppValue, V8Node::hasInstance(jsValue, info.GetIsolate()) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
+    V8TRYCATCH_VOID(Node*, cppValue, V8Node::toNativeWithTypeCheck(info.GetIsolate(), jsValue));
     TestImplements::setImplementsNodeAttribute(imp, WTF::getPtr(cppValue));
 }
 
 static void implementsNodeAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestInterfacePythonImplementationV8Internal::implementsNodeAttributeAttributeSetter(jsValue, info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
@@ skipping 40 matching lines @@
 
 static void implementsRuntimeEnabledNodeAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "implementsRuntimeEnabledNodeAttribute", "TestInterfacePython", info.Holder(), info.GetIsolate());
     if (!isUndefinedOrNull(jsValue) && !V8Node::hasInstance(jsValue, info.GetIsolate())) {
         exceptionState.throwTypeError("The provided value is not of type 'Node'.");
         exceptionState.throwIfNeeded();
         return;
     }
     TestInterfacePythonImplementation* imp = V8TestInterfacePython::toNative(info.Holder());
-    V8TRYCATCH_VOID(Node*, cppValue, V8Node::hasInstance(jsValue, info.GetIsolate()) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
+    V8TRYCATCH_VOID(Node*, cppValue, V8Node::toNativeWithTypeCheck(info.GetIsolate(), jsValue));
     TestImplements::setImplementsRuntimeEnabledNodeAttribute(imp, WTF::getPtr(cppValue));
 }
 
 static void implementsRuntimeEnabledNodeAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestInterfacePythonImplementationV8Internal::implementsRuntimeEnabledNodeAttributeAttributeSetter(jsValue, info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
@@ skipping 12 matching lines @@
 
 static void implementsPerContextEnabledNodeAttributeAttributeSetter(v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     ExceptionState exceptionState(ExceptionState::SetterContext, "implementsPerContextEnabledNodeAttribute", "TestInterfacePython", info.Holder(), info.GetIsolate());
     if (!isUndefinedOrNull(jsValue) && !V8Node::hasInstance(jsValue, info.GetIsolate())) {
         exceptionState.throwTypeError("The provided value is not of type 'Node'.");
         exceptionState.throwIfNeeded();
         return;
     }
     TestInterfacePythonImplementation* imp = V8TestInterfacePython::toNative(info.Holder());
-    V8TRYCATCH_VOID(Node*, cppValue, V8Node::hasInstance(jsValue, info.GetIsolate()) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(jsValue)) : 0);
+    V8TRYCATCH_VOID(Node*, cppValue, V8Node::toNativeWithTypeCheck(info.GetIsolate(), jsValue));
     TestImplements::setImplementsPerContextEnabledNodeAttribute(imp, WTF::getPtr(cppValue));
 }
 
 static void implementsPerContextEnabledNodeAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> jsValue, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMSetter");
     TestInterfacePythonImplementationV8Internal::implementsPerContextEnabledNodeAttributeAttributeSetter(jsValue, info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
@@ skipping 287 matching lines @@
 {
     if (UNLIKELY(info.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTestInterfaceEmptyArg", "TestInterfacePython", ExceptionMessages::notEnoughArguments(1, info.Length())), info.GetIsolate());
         return;
     }
     TestInterfacePythonImplementation* imp = V8TestInterfacePython::toNative(info.Holder());
     if (info.Length() > 0 && !V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate())) {
         throwTypeError(ExceptionMessages::failedToExecute("voidMethodTestInterfaceEmptyArg", "TestInterfacePython", "parameter 1 is not of type 'TestInterfaceEmpty'."), info.GetIsolate());
         return;
     }
-    V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[0], info.GetIsolate()) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[0])) : 0);
+    V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::toNativeWithTypeCheck(info.GetIsolate(), info[0]));
     imp->voidMethodTestInterfaceEmptyArg(testInterfaceEmptyArg);
 }
 
 static void voidMethodTestInterfaceEmptyArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestInterfacePythonImplementationV8Internal::voidMethodTestInterfaceEmptyArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
@@ skipping 44 matching lines @@
         exceptionState.throwIfNeeded();
         return;
     }
     TestInterfacePythonImplementation* imp = V8TestInterfacePython::toNative(info.Holder());
     V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, strArg, info[0]);
     if (info.Length() > 1 && !V8TestInterfaceEmpty::hasInstance(info[1], info.GetIsolate())) {
         exceptionState.throwTypeError("parameter 2 is not of type 'TestInterfaceEmpty'.");
         exceptionState.throwIfNeeded();
         return;
     }
-    V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::hasInstance(info[1], info.GetIsolate()) ? V8TestInterfaceEmpty::toNative(v8::Handle<v8::Object>::Cast(info[1])) : 0);
+    V8TRYCATCH_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::toNativeWithTypeCheck(info.GetIsolate(), info[1]));
     ExecutionContext* scriptContext = currentExecutionContext(info.GetIsolate());
     RefPtr<TestInterfaceEmpty> result = TestImplements::implementsComplexMethod(scriptContext, imp, strArg, testInterfaceEmptyArg, exceptionState);
     if (exceptionState.throwIfNeeded())
         return;
     v8SetReturnValue(info, result.release());
 }
 
 static void implementsComplexMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
@@ skipping 304 matching lines @@
     data->templateMap(currentWorldType).add(&wrapperTypeInfo, UnsafePersistent<v8::FunctionTemplate>(isolate, templ));
     return handleScope.Escape(templ);
 }
 
 bool V8TestInterfacePython::hasInstance(v8::Handle<v8::Value> jsValue, v8::Isolate* isolate)
 {
     return V8PerIsolateData::from(isolate)->hasInstanceInMainWorld(&wrapperTypeInfo, jsValue)
         || V8PerIsolateData::from(isolate)->hasInstanceInNonMainWorld(&wrapperTypeInfo, jsValue);
 }
 
+TestInterfacePythonImplementation* V8TestInterfacePython::toNativeWithTypeCheck(v8::Isolate* isolate, v8::Handle<v8::Value> value)
+{
+    return hasInstance(value, isolate) ? fromInternalPointer(v8::Handle<v8::Object>::Cast(value)->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex)) : 0;
+}
+
 void V8TestInterfacePython::installPerContextEnabledProperties(v8::Handle<v8::Object> instanceTemplate, TestInterfacePythonImplementation* impl, v8::Isolate* isolate)
 {
     v8::Local<v8::Object> prototypeTemplate = v8::Local<v8::Object>::Cast(instanceTemplate->GetPrototype());
     if (ContextFeatures::implementsContextNameEnabled(impl->document())) {
         static const V8DOMConfiguration::AttributeConfiguration attributeConfiguration =\
         {"implementsPerContextEnabledNodeAttribute", TestInterfacePythonImplementationV8Internal::implementsPerContextEnabledNodeAttributeAttributeGetterCallback, TestInterfacePythonImplementationV8Internal::implementsPerContextEnabledNodeAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), 0 /* on instance */};
         V8DOMConfiguration::installAttribute(instanceTemplate, prototypeTemplate, attributeConfiguration, isolate);
     }
 }
 
 ActiveDOMObject* V8TestInterfacePython::toActiveDOMObject(v8::Handle<v8::Object> wrapper)
 {
     return toNative(wrapper);
 }
 
 void V8TestInterfacePython::derefObject(void* object)
 {
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestInterfacePythonImplementation* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore
 #endif // ENABLE(CONDITION)