[bindings] Eliminate custom bindings for DeviceOrientationEvent.

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 10043 matching lines @@
     impl->voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArg(treatNullAsNullStringStringArg);
 }
 
 static void voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestObjectV8Internal::voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
+static void voidMethodTreadUndefinedAsNullMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodTreadUndefinedAsNull", "TestObject", info.Holder(), info.GetIsolate());
+    if (UNLIKELY(info.Length() < 1)) {
+        setMinimumArityTypeError(exceptionState, 1, info.Length());
+        exceptionState.throwIfNeeded();
+        return;
+    }
+    TestObject* impl = V8TestObject::toImpl(info.Holder());
+    double firstArg;
+    int secondArg;
+    double* optionalDoubleArg = nullptr;
+    double optionalDoubleArgValue;
+    {
+        firstArg = toRestrictedDouble(info.GetIsolate(), info[0], exceptionState);
+        if (exceptionState.throwIfNeeded())
+            return;
+        if (UNLIKELY(info.Length() <= 1)) {
+            impl->voidMethodTreadUndefinedAsNull(firstArg);
+            return;
+        }
+        secondArg = toInt32(info.GetIsolate(), info[1], NormalConversion, exceptionState);
+        if (exceptionState.throwIfNeeded())
+            return;
+        if (!isUndefinedOrNull(info[2])) {
+            optionalDoubleArgValue = toRestrictedDouble(info.GetIsolate(), info[2], exceptionState);
+            optionalDoubleArg = &optionalDoubleArgValue;
+            if (exceptionState.throwIfNeeded())
+                return;
+        }
+    }
+    impl->voidMethodTreadUndefinedAsNull(firstArg, secondArg, optionalDoubleArg);

[haraken, 2015/06/17 16:01:42]

Would you help me understand why we need to pass a pointer to the C++
implementation? How are the fact that the DOM attribute/method has
[TreatUndefinedAs=Null] and the fact that we have to pass in a pointer related
with each other?

+}
+
+static void voidMethodTreadUndefinedAsNullMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
+    TestObjectV8Internal::voidMethodTreadUndefinedAsNullMethod(info);
+    TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
+}
+
 static void activityLoggingAccessForAllWorldsMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toImpl(info.Holder());
     impl->activityLoggingAccessForAllWorldsMethod();
 }
 
 static void activityLoggingAccessForAllWorldsMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     ScriptState* scriptState = ScriptState::from(info.GetIsolate()->GetCurrentContext());
@@ skipping 2703 matching lines @@
     {"setItem", TestObjectV8Internal::setItemMethodCallback, 0, 2, V8DOMConfiguration::ExposedToAllScripts},
     {"voidMethodClampUnsignedShortArg", TestObjectV8Internal::voidMethodClampUnsignedShortArgMethodCallback, 0, 1, V8DOMConfiguration::ExposedToAllScripts},
     {"voidMethodClampUnsignedLongArg", TestObjectV8Internal::voidMethodClampUnsignedLongArgMethodCallback, 0, 1, V8DOMConfiguration::ExposedToAllScripts},
     {"voidMethodDefaultUndefinedTestInterfaceEmptyArg", TestObjectV8Internal::voidMethodDefaultUndefinedTestInterfaceEmptyArgMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"voidMethodDefaultUndefinedLongArg", TestObjectV8Internal::voidMethodDefaultUndefinedLongArgMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"voidMethodDefaultUndefinedStringArg", TestObjectV8Internal::voidMethodDefaultUndefinedStringArgMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"voidMethodEnforceRangeLongArg", TestObjectV8Internal::voidMethodEnforceRangeLongArgMethodCallback, 0, 1, V8DOMConfiguration::ExposedToAllScripts},
     {"voidMethodTreatNullAsEmptyStringStringArg", TestObjectV8Internal::voidMethodTreatNullAsEmptyStringStringArgMethodCallback, 0, 1, V8DOMConfiguration::ExposedToAllScripts},
     {"voidMethodTreatNullAsNullStringStringArg", TestObjectV8Internal::voidMethodTreatNullAsNullStringStringArgMethodCallback, 0, 1, V8DOMConfiguration::ExposedToAllScripts},
     {"voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArg", TestObjectV8Internal::voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArgMethodCallback, 0, 1, V8DOMConfiguration::ExposedToAllScripts},
+    {"voidMethodTreadUndefinedAsNull", TestObjectV8Internal::voidMethodTreadUndefinedAsNullMethodCallback, 0, 1, V8DOMConfiguration::ExposedToAllScripts},
     {"activityLoggingAccessForAllWorldsMethod", TestObjectV8Internal::activityLoggingAccessForAllWorldsMethodMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"callWithExecutionContextVoidMethod", TestObjectV8Internal::callWithExecutionContextVoidMethodMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"callWithScriptStateVoidMethod", TestObjectV8Internal::callWithScriptStateVoidMethodMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"callWithScriptStateLongMethod", TestObjectV8Internal::callWithScriptStateLongMethodMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"callWithScriptStateExecutionContextVoidMethod", TestObjectV8Internal::callWithScriptStateExecutionContextVoidMethodMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"callWithScriptStateScriptArgumentsVoidMethod", TestObjectV8Internal::callWithScriptStateScriptArgumentsVoidMethodMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"callWithScriptStateScriptArgumentsVoidMethodOptionalBooleanArg", TestObjectV8Internal::callWithScriptStateScriptArgumentsVoidMethodOptionalBooleanArgMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"callWithActiveWindow", TestObjectV8Internal::callWithActiveWindowMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"callWithActiveWindowScriptWindow", TestObjectV8Internal::callWithActiveWindowScriptWindowMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
     {"callWithThisValue", TestObjectV8Internal::callWithThisValueMethodCallback, 0, 0, V8DOMConfiguration::ExposedToAllScripts},
@@ skipping 793 matching lines @@
     ScriptState::Scope scope(scriptState);
     v8::Local<v8::Value> holder = toV8(holderImpl, scriptState->context()->Global(), scriptState->isolate());
     if (holder.IsEmpty())
         return false;
 
     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