IDL: Treat undefined as missing for optional arguments with defaults

Source/bindings/tests/results/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 7322 matching lines @@
 }
 
 static void voidMethodDefaultByteStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodDefaultByteStringArg", "TestObject", info.Holder(), info.GetIsolate());
     TestObject* impl = V8TestObject::toNative(info.Holder());
     V8StringResource<> defaultByteStringArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TONATIVE_VOID_EXCEPTIONSTATE_INTERNAL(defaultByteStringArg, toByteString(info[0], exceptionState), exceptionState);
         } else {
             defaultByteStringArg = String("foo");
         }
     }
     impl->voidMethodDefaultByteStringArg(defaultByteStringArg);
 }
 
 static void voidMethodDefaultByteStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestObjectV8Internal::voidMethodDefaultByteStringArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void voidMethodDefaultStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     V8StringResource<> defaultStringArg;
     {
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TOSTRING_VOID_INTERNAL(defaultStringArg, info[0]);
         } else {
             defaultStringArg = String("foo");
         }
     }
     impl->voidMethodDefaultStringArg(defaultStringArg);
 }
 
 static void voidMethodDefaultStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestObjectV8Internal::voidMethodDefaultStringArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void voidMethodDefaultIntegerArgsMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "voidMethodDefaultIntegerArgs", "TestObject", info.Holder(), info.GetIsolate());
     TestObject* impl = V8TestObject::toNative(info.Holder());
     int defaultLongArg;
     long long defaultLongLongArg;
     unsigned defaultUnsignedArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TONATIVE_VOID_EXCEPTIONSTATE_INTERNAL(defaultLongArg, toInt32(info[0], exceptionState), exceptionState);
         } else {
             defaultLongArg = 10;
         }
-        if (info.Length() > 1) {
+        if (!info[1]->IsUndefined()) {
             TONATIVE_VOID_EXCEPTIONSTATE_INTERNAL(defaultLongLongArg, toInt64(info[1], exceptionState), exceptionState);
         } else {
             defaultLongLongArg = -10;
         }
-        if (info.Length() > 2) {
+        if (!info[2]->IsUndefined()) {
             TONATIVE_VOID_EXCEPTIONSTATE_INTERNAL(defaultUnsignedArg, toUInt32(info[2], exceptionState), exceptionState);
         } else {
             defaultUnsignedArg = 4294967295u;
         }
     }
     impl->voidMethodDefaultIntegerArgs(defaultLongArg, defaultLongLongArg, defaultUnsignedArg);
 }
 
 static void voidMethodDefaultIntegerArgsMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestObjectV8Internal::voidMethodDefaultIntegerArgsMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void voidMethodDefaultDoubleArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     double defaultDoubleArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TONATIVE_VOID_INTERNAL(defaultDoubleArg, static_cast<double>(info[0]->NumberValue()));
         } else {
             defaultDoubleArg = 0.5;
         }
     }
     impl->voidMethodDefaultDoubleArg(defaultDoubleArg);
 }
 
 static void voidMethodDefaultDoubleArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestObjectV8Internal::voidMethodDefaultDoubleArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void voidMethodDefaultTrueBooleanArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     bool defaultBooleanArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TONATIVE_VOID_INTERNAL(defaultBooleanArg, info[0]->BooleanValue());
         } else {
             defaultBooleanArg = true;
         }
     }
     impl->voidMethodDefaultTrueBooleanArg(defaultBooleanArg);
 }
 
 static void voidMethodDefaultTrueBooleanArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestObjectV8Internal::voidMethodDefaultTrueBooleanArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void voidMethodDefaultFalseBooleanArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     bool defaultBooleanArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TONATIVE_VOID_INTERNAL(defaultBooleanArg, info[0]->BooleanValue());
         } else {
             defaultBooleanArg = false;
         }
     }
     impl->voidMethodDefaultFalseBooleanArg(defaultBooleanArg);
 }
 
 static void voidMethodDefaultFalseBooleanArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestObjectV8Internal::voidMethodDefaultFalseBooleanArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void voidMethodDefaultNullableByteStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     V8StringResource<TreatNullAsNullString> defaultStringArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TONATIVE_VOID_INTERNAL(defaultStringArg, toByteString(info[0]));
         } else {
             defaultStringArg = nullptr;
         }
     }
     impl->voidMethodDefaultNullableByteStringArg(defaultStringArg);
 }
 
 static void voidMethodDefaultNullableByteStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestObjectV8Internal::voidMethodDefaultNullableByteStringArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void voidMethodDefaultNullableStringArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     V8StringResource<TreatNullAsNullString> defaultStringArg;
     {
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TOSTRING_VOID_INTERNAL(defaultStringArg, info[0]);
         } else {
             defaultStringArg = nullptr;
         }
     }
     impl->voidMethodDefaultNullableStringArg(defaultStringArg);
 }
 
 static void voidMethodDefaultNullableStringArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMMethod");
     TestObjectV8Internal::voidMethodDefaultNullableStringArgMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
 static void voidMethodDefaultNullableTestInterfaceArgMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     TestInterfaceImplementation* defaultTestInterfaceArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TONATIVE_VOID_INTERNAL(defaultTestInterfaceArg, V8TestInterface::toNativeWithTypeCheck(info.GetIsolate(), info[0]));
         } else {
             defaultTestInterfaceArg = nullptr;
         }
     }
     impl->voidMethodDefaultNullableTestInterfaceArg(defaultTestInterfaceArg);
 }
 
 static void voidMethodDefaultNullableTestInterfaceArgMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
@@ skipping 536 matching lines @@
     impl->overloadedMethodG(longArg);
 }
 
 static void overloadedMethodG2Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     TestInterfaceEmpty* testInterfaceEmptyOrNullArg;
     {
         v8::TryCatch block;
         V8RethrowTryCatchScope rethrow(block);
-        if (info.Length() > 0) {
+        if (!info[0]->IsUndefined()) {
             TONATIVE_VOID_INTERNAL(testInterfaceEmptyOrNullArg, V8TestInterfaceEmpty::toNativeWithTypeCheck(info.GetIsolate(), info[0]));
         } else {
             testInterfaceEmptyOrNullArg = nullptr;
         }
     }
     impl->overloadedMethodG(testInterfaceEmptyOrNullArg);
 }
 
 static void overloadedMethodGMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
@@ skipping 2877 matching lines @@
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestObject* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore