IDL: Support nullable union types

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

Index: Source/bindings/tests/results/core/V8TestObject.cpp
diff --git a/Source/bindings/tests/results/core/V8TestObject.cpp b/Source/bindings/tests/results/core/V8TestObject.cpp
index 34eaacf0b65eb9b772775b7c9d36cd5e58c3ba96..5b83c0951ca138533981882074b0985b5fe08090 100644
--- a/Source/bindings/tests/results/core/V8TestObject.cpp
+++ b/Source/bindings/tests/results/core/V8TestObject.cpp
@@ -1767,6 +1767,39 @@ static void doubleOrStringAttributeAttributeSetterCallback(v8::Local<v8::String>
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 
+static void doubleOrStringOrNullAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
+{
+    v8::Handle<v8::Object> holder = info.Holder();
+    TestObject* impl = V8TestObject::toImpl(holder);
+    DoubleOrString result;
+    impl->doubleOrStringOrNullAttribute(result);
+    v8SetReturnValue(info, result);
+}
+
+static void doubleOrStringOrNullAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
+{
+    TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMGetter");
+    TestObjectV8Internal::doubleOrStringOrNullAttributeAttributeGetter(info);
+    TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
+}
+
+static void doubleOrStringOrNullAttributeAttributeSetter(v8::Local<v8::Value> v8Value, const v8::PropertyCallbackInfo<void>& info)
+{
+    v8::Handle<v8::Object> holder = info.Holder();
+    ExceptionState exceptionState(ExceptionState::SetterContext, "doubleOrStringOrNullAttribute", "TestObject", holder, info.GetIsolate());
+    DoubleOrString cppValue;
+    TestObject* impl = V8TestObject::toImpl(holder);
+    TONATIVE_VOID_EXCEPTIONSTATE_ARGINTERNAL(V8DoubleOrString::toImpl(info.GetIsolate(), v8Value, cppValue, exceptionState), exceptionState);
+    impl->setDoubleOrStringOrNullAttribute(cppValue);
+}
+
+static void doubleOrStringOrNullAttributeAttributeSetterCallback(v8::Local<v8::String>, v8::Local<v8::Value> v8Value, const v8::PropertyCallbackInfo<void>& info)
+{
+    TRACE_EVENT_SET_SAMPLING_STATE("blink", "DOMSetter");
+    TestObjectV8Internal::doubleOrStringOrNullAttributeAttributeSetter(v8Value, info);
+    TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
+}
+
 static void activityLoggingAccessForAllWorldsLongAttributeAttributeGetter(const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::Object> holder = info.Holder();
@@ -10262,6 +10295,7 @@ static const V8DOMConfiguration::AttributeConfiguration V8TestObjectAttributes[]
     {"testEnumAttribute", TestObjectV8Internal::testEnumAttributeAttributeGetterCallback, TestObjectV8Internal::testEnumAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::ExposedToAllScripts, V8DOMConfiguration::OnInstance},
     {"eventHandlerAttribute", TestObjectV8Internal::eventHandlerAttributeAttributeGetterCallback, TestObjectV8Internal::eventHandlerAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::ExposedToAllScripts, V8DOMConfiguration::OnInstance},
     {"doubleOrStringAttribute", TestObjectV8Internal::doubleOrStringAttributeAttributeGetterCallback, TestObjectV8Internal::doubleOrStringAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::ExposedToAllScripts, V8DOMConfiguration::OnInstance},
+    {"doubleOrStringOrNullAttribute", TestObjectV8Internal::doubleOrStringOrNullAttributeAttributeGetterCallback, TestObjectV8Internal::doubleOrStringOrNullAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::ExposedToAllScripts, V8DOMConfiguration::OnInstance},
     {"activityLoggingAccessForAllWorldsLongAttribute", TestObjectV8Internal::activityLoggingAccessForAllWorldsLongAttributeAttributeGetterCallback, TestObjectV8Internal::activityLoggingAccessForAllWorldsLongAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::ExposedToAllScripts, V8DOMConfiguration::OnInstance},
     {"activityLoggingGetterForAllWorldsLongAttribute", TestObjectV8Internal::activityLoggingGetterForAllWorldsLongAttributeAttributeGetterCallback, TestObjectV8Internal::activityLoggingGetterForAllWorldsLongAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::ExposedToAllScripts, V8DOMConfiguration::OnInstance},
     {"activityLoggingSetterForAllWorldsLongAttribute", TestObjectV8Internal::activityLoggingSetterForAllWorldsLongAttributeAttributeGetterCallback, TestObjectV8Internal::activityLoggingSetterForAllWorldsLongAttributeAttributeSetterCallback, 0, 0, 0, static_cast<v8::AccessControl>(v8::DEFAULT), static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::ExposedToAllScripts, V8DOMConfiguration::OnInstance},