Conversion of Promise is trivial

Source/bindings/tests/results/core/V8TestObject.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #include "config.h"
 #include "V8TestObject.h"
 
 #include "bindings/core/v8/BindingSecurity.h"
@@ skipping 1035 matching lines @@
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMGetter");
     TestObjectV8Internal::promiseAttributeAttributeGetter(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void promiseAttributeAttributeSetter(v8::Local<v8::Value> v8Value, const v8::PropertyCallbackInfo<void>& info)
 {
     v8::Handle<v8::Object> holder = info.Holder();
     TestObject* impl = V8TestObject::toImpl(holder);
-    TONATIVE_VOID(ScriptPromise, cppValue, ScriptPromise::cast(ScriptState::current(info.GetIsolate()), v8Value));
+    ScriptPromise cppValue = ScriptPromise::cast(ScriptState::current(info.GetIsolate()), v8Value);
     impl->setPromiseAttribute(cppValue);
 }
 
 static void promiseAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> v8Value, const v8::PropertyCallbackInfo<void>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMSetter");
     TestObjectV8Internal::promiseAttributeAttributeSetter(v8Value, info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
@@ skipping 5643 matching lines @@
 
 static void voidMethodPromiseArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (UNLIKELY(info.Length() < 1)) {
         V8ThrowException::throwException(createMinimumArityTypeErrorForMethod("voidMethodPromiseArg", "TestObject", 1, info.Length(), info.GetIsolate()), info.GetIsolate());
         return;
     }
     TestObject* impl = V8TestObject::toImpl(info.Holder());
     ScriptPromise promiseArg;
     {
-        v8::TryCatch block;
-        V8RethrowTryCatchScope rethrow(block);
-        TONATIVE_VOID_INTERNAL(promiseArg, ScriptPromise::cast(ScriptState::current(info.GetIsolate()), info[0]));
+        promiseArg = ScriptPromise::cast(ScriptState::current(info.GetIsolate()), info[0]);
         if (!promiseArg.isUndefinedOrNull() && !promiseArg.isObject()) {
             V8ThrowException::throwTypeError(ExceptionMessages::failedToExecute("voidMethodPromiseArg", "TestObject", "parameter 1 ('promiseArg') is not an object."), info.GetIsolate());
             return;
         }
     }
     impl->voidMethodPromiseArg(promiseArg);
 }
 
 static void voidMethodPromiseArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
@@ skipping 4325 matching lines @@
         return false;
 
     ScriptState::Scope scope(scriptState);
     v8::Handle<v8::Value> holder = toV8(holderImpl, scriptState->context()->Global(), scriptState->isolate());
 
     ExceptionState exceptionState(ExceptionState::SetterContext, "enumForPrivateScript", "TestObject", scriptState->context()->Global(), scriptState->isolate());
     return PrivateScriptRunner::runDOMAttributeSetter(scriptState, scriptStateInUserScript, "TestObject", "enumForPrivateScript", holder, v8String(scriptState->isolate(), cppValue));
 }
 
 } // namespace blink