bindings: Add support for nested union types

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

Index: third_party/WebKit/Source/bindings/tests/results/core/V8TestObject.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/V8TestObject.cpp b/third_party/WebKit/Source/bindings/tests/results/core/V8TestObject.cpp
index 0c7632faa8357958406d1d968573dac07c91caa2..689a293fdb61c7e84a8fcd3d62b1591a641ff784 100644
--- a/third_party/WebKit/Source/bindings/tests/results/core/V8TestObject.cpp
+++ b/third_party/WebKit/Source/bindings/tests/results/core/V8TestObject.cpp
@@ -16,6 +16,7 @@
 #include "bindings/core/v8/BooleanOrStringOrUnrestrictedDouble.h"
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/DoubleOrString.h"
+#include "bindings/core/v8/DoubleOrStringOrDoubleOrStringSequence.h"
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/IDLTypes.h"
 #include "bindings/core/v8/NativeValueTraitsImpl.h"
@@ -1555,6 +1556,32 @@ static void unrestrictedDoubleOrStringAttributeAttributeSetter(v8::Local<v8::Val
   impl->setUnrestrictedDoubleOrStringAttribute(cppValue);
 }
 
+static void nestedUnionAtributeAttributeGetter(const v8::FunctionCallbackInfo<v8::Value>& info) {
+  v8::Local<v8::Object> holder = info.Holder();
+
+  TestObject* impl = V8TestObject::toImpl(holder);
+
+  DoubleOrStringOrDoubleOrStringSequence result;
+  impl->nestedUnionAtribute(result);
+
+  v8SetReturnValue(info, result);
+}
+
+static void nestedUnionAtributeAttributeSetter(v8::Local<v8::Value> v8Value, const v8::FunctionCallbackInfo<v8::Value>& info) {
+  v8::Local<v8::Object> holder = info.Holder();
+  TestObject* impl = V8TestObject::toImpl(holder);
+
+  ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestObject", "nestedUnionAtribute");
+
+  // Prepare the value to be set.
+  DoubleOrStringOrDoubleOrStringSequence cppValue;
+  V8DoubleOrStringOrDoubleOrStringSequence::toImpl(info.GetIsolate(), v8Value, cppValue, UnionTypeConversionMode::NotNullable, exceptionState);
+  if (exceptionState.hadException())
+    return;
+
+  impl->setNestedUnionAtribute(cppValue);
+}
+
 static void activityLoggingAccessForAllWorldsLongAttributeAttributeGetter(const v8::FunctionCallbackInfo<v8::Value>& info) {
   v8::Local<v8::Object> holder = info.Holder();
 
@@ -9192,6 +9219,16 @@ void V8TestObject::unrestrictedDoubleOrStringAttributeAttributeSetterCallback(co
   TestObjectV8Internal::unrestrictedDoubleOrStringAttributeAttributeSetter(v8Value, info);
 }
 
+void V8TestObject::nestedUnionAtributeAttributeGetterCallback(const v8::FunctionCallbackInfo<v8::Value>& info) {
+  TestObjectV8Internal::nestedUnionAtributeAttributeGetter(info);
+}
+
+void V8TestObject::nestedUnionAtributeAttributeSetterCallback(const v8::FunctionCallbackInfo<v8::Value>& info) {
+  v8::Local<v8::Value> v8Value = info[0];
+
+  TestObjectV8Internal::nestedUnionAtributeAttributeSetter(v8Value, info);
+}
+
 void V8TestObject::activityLoggingAccessForAllWorldsLongAttributeAttributeGetterCallback(const v8::FunctionCallbackInfo<v8::Value>& info) {
   ScriptState* scriptState = ScriptState::forReceiverObject(info);
   V8PerContextData* contextData = scriptState->perContextData();
@@ -11308,6 +11345,7 @@ const V8DOMConfiguration::AccessorConfiguration V8TestObjectAccessors[] = {
     {"stringOrStringSequenceAttribute", V8TestObject::stringOrStringSequenceAttributeAttributeGetterCallback, V8TestObject::stringOrStringSequenceAttributeAttributeSetterCallback, nullptr, nullptr, nullptr, nullptr, static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::OnPrototype, V8DOMConfiguration::CheckHolder},
     {"testEnumOrDoubleAttribute", V8TestObject::testEnumOrDoubleAttributeAttributeGetterCallback, V8TestObject::testEnumOrDoubleAttributeAttributeSetterCallback, nullptr, nullptr, nullptr, nullptr, static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::OnPrototype, V8DOMConfiguration::CheckHolder},
     {"unrestrictedDoubleOrStringAttribute", V8TestObject::unrestrictedDoubleOrStringAttributeAttributeGetterCallback, V8TestObject::unrestrictedDoubleOrStringAttributeAttributeSetterCallback, nullptr, nullptr, nullptr, nullptr, static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::OnPrototype, V8DOMConfiguration::CheckHolder},
+    {"nestedUnionAtribute", V8TestObject::nestedUnionAtributeAttributeGetterCallback, V8TestObject::nestedUnionAtributeAttributeSetterCallback, nullptr, nullptr, nullptr, nullptr, static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::OnPrototype, V8DOMConfiguration::CheckHolder},
     {"activityLoggingAccessForAllWorldsLongAttribute", V8TestObject::activityLoggingAccessForAllWorldsLongAttributeAttributeGetterCallback, V8TestObject::activityLoggingAccessForAllWorldsLongAttributeAttributeSetterCallback, nullptr, nullptr, nullptr, nullptr, static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::OnPrototype, V8DOMConfiguration::CheckHolder},
     {"activityLoggingGetterForAllWorldsLongAttribute", V8TestObject::activityLoggingGetterForAllWorldsLongAttributeAttributeGetterCallback, V8TestObject::activityLoggingGetterForAllWorldsLongAttributeAttributeSetterCallback, nullptr, nullptr, nullptr, nullptr, static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::OnPrototype, V8DOMConfiguration::CheckHolder},
     {"activityLoggingSetterForAllWorldsLongAttribute", V8TestObject::activityLoggingSetterForAllWorldsLongAttributeAttributeGetterCallback, V8TestObject::activityLoggingSetterForAllWorldsLongAttributeAttributeSetterCallback, nullptr, nullptr, nullptr, nullptr, static_cast<v8::PropertyAttribute>(v8::None), V8DOMConfiguration::OnPrototype, V8DOMConfiguration::CheckHolder},