Revert of Generate separate files for union type containers

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

Index: third_party/WebKit/Source/bindings/tests/results/core/UnionTypesCore.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/UnionTypesCore.cpp b/third_party/WebKit/Source/bindings/tests/results/core/UnionTypesCore.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..9401c451b83c610289b08643ef26dea5a72e59d5
--- /dev/null
+++ b/third_party/WebKit/Source/bindings/tests/results/core/UnionTypesCore.cpp
@@ -0,0 +1,1562 @@
+// 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 "bindings/core/v8/UnionTypesCore.h"
+
+#include "bindings/core/v8/Dictionary.h"
+#include "bindings/core/v8/UnionTypesCore.h"
+#include "bindings/core/v8/V8ArrayBuffer.h"
+#include "bindings/core/v8/V8ArrayBufferView.h"
+#include "bindings/core/v8/V8Node.h"
+#include "bindings/core/v8/V8NodeList.h"
+#include "bindings/core/v8/V8TestInterface.h"
+#include "bindings/core/v8/V8TestInterface2.h"
+#include "bindings/core/v8/V8TestInterfaceEmpty.h"
+#include "bindings/core/v8/V8TestInterfaceGarbageCollected.h"
+#include "bindings/core/v8/V8Uint8Array.h"
+#include "bindings/tests/idls/core/TestImplements2.h"
+#include "bindings/tests/idls/core/TestImplements3Implementation.h"
+#include "bindings/tests/idls/core/TestPartialInterface.h"
+#include "bindings/tests/idls/core/TestPartialInterfaceImplementation.h"
+#include "core/dom/FlexibleArrayBufferView.h"
+#include "core/dom/NameNodeList.h"
+#include "core/dom/NodeList.h"
+#include "core/dom/StaticNodeList.h"
+#include "core/html/LabelsNodeList.h"
+
+namespace blink {
+
+ArrayBufferOrArrayBufferViewOrDictionary::ArrayBufferOrArrayBufferViewOrDictionary()
+    : m_type(SpecificTypeNone)
+{
+}
+
+TestArrayBuffer* ArrayBufferOrArrayBufferViewOrDictionary::getAsArrayBuffer() const
+{
+    ASSERT(isArrayBuffer());
+    return m_arrayBuffer;
+}
+
+void ArrayBufferOrArrayBufferViewOrDictionary::setArrayBuffer(TestArrayBuffer* value)
+{
+    ASSERT(isNull());
+    m_arrayBuffer = value;
+    m_type = SpecificTypeArrayBuffer;
+}
+
+ArrayBufferOrArrayBufferViewOrDictionary ArrayBufferOrArrayBufferViewOrDictionary::fromArrayBuffer(TestArrayBuffer* value)
+{
+    ArrayBufferOrArrayBufferViewOrDictionary container;
+    container.setArrayBuffer(value);
+    return container;
+}
+
+TestArrayBufferView* ArrayBufferOrArrayBufferViewOrDictionary::getAsArrayBufferView() const
+{
+    ASSERT(isArrayBufferView());
+    return m_arrayBufferView;
+}
+
+void ArrayBufferOrArrayBufferViewOrDictionary::setArrayBufferView(TestArrayBufferView* value)
+{
+    ASSERT(isNull());
+    m_arrayBufferView = value;
+    m_type = SpecificTypeArrayBufferView;
+}
+
+ArrayBufferOrArrayBufferViewOrDictionary ArrayBufferOrArrayBufferViewOrDictionary::fromArrayBufferView(TestArrayBufferView* value)
+{
+    ArrayBufferOrArrayBufferViewOrDictionary container;
+    container.setArrayBufferView(value);
+    return container;
+}
+
+Dictionary ArrayBufferOrArrayBufferViewOrDictionary::getAsDictionary() const
+{
+    ASSERT(isDictionary());
+    return m_dictionary;
+}
+
+void ArrayBufferOrArrayBufferViewOrDictionary::setDictionary(Dictionary value)
+{
+    ASSERT(isNull());
+    m_dictionary = value;
+    m_type = SpecificTypeDictionary;
+}
+
+ArrayBufferOrArrayBufferViewOrDictionary ArrayBufferOrArrayBufferViewOrDictionary::fromDictionary(Dictionary value)
+{
+    ArrayBufferOrArrayBufferViewOrDictionary container;
+    container.setDictionary(value);
+    return container;
+}
+
+ArrayBufferOrArrayBufferViewOrDictionary::ArrayBufferOrArrayBufferViewOrDictionary(const ArrayBufferOrArrayBufferViewOrDictionary&) = default;
+ArrayBufferOrArrayBufferViewOrDictionary::~ArrayBufferOrArrayBufferViewOrDictionary() = default;
+ArrayBufferOrArrayBufferViewOrDictionary& ArrayBufferOrArrayBufferViewOrDictionary::operator=(const ArrayBufferOrArrayBufferViewOrDictionary&) = default;
+
+DEFINE_TRACE(ArrayBufferOrArrayBufferViewOrDictionary)
+{
+    visitor->trace(m_arrayBuffer);
+    visitor->trace(m_arrayBufferView);
+}
+
+void V8ArrayBufferOrArrayBufferViewOrDictionary::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, ArrayBufferOrArrayBufferViewOrDictionary& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (V8ArrayBuffer::hasInstance(v8Value, isolate)) {
+        TestArrayBuffer* cppValue = V8ArrayBuffer::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setArrayBuffer(cppValue);
+        return;
+    }
+
+    if (V8ArrayBufferView::hasInstance(v8Value, isolate)) {
+        TestArrayBufferView* cppValue = V8ArrayBufferView::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setArrayBufferView(cppValue);
+        return;
+    }
+
+    if (isUndefinedOrNull(v8Value) || v8Value->IsObject()) {
+        Dictionary cppValue = Dictionary(v8Value, isolate, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setDictionary(cppValue);
+        return;
+    }
+
+    exceptionState.throwTypeError("The provided value is not of type '(ArrayBuffer or ArrayBufferView or Dictionary)'");
+}
+
+v8::Local<v8::Value> toV8(const ArrayBufferOrArrayBufferViewOrDictionary& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case ArrayBufferOrArrayBufferViewOrDictionary::SpecificTypeNone:
+        return v8::Null(isolate);
+    case ArrayBufferOrArrayBufferViewOrDictionary::SpecificTypeArrayBuffer:
+        return toV8(impl.getAsArrayBuffer(), creationContext, isolate);
+    case ArrayBufferOrArrayBufferViewOrDictionary::SpecificTypeArrayBufferView:
+        return toV8(impl.getAsArrayBufferView(), creationContext, isolate);
+    case ArrayBufferOrArrayBufferViewOrDictionary::SpecificTypeDictionary:
+        return impl.getAsDictionary().v8Value();
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+ArrayBufferOrArrayBufferViewOrDictionary NativeValueTraits<ArrayBufferOrArrayBufferViewOrDictionary>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    ArrayBufferOrArrayBufferViewOrDictionary impl;
+    V8ArrayBufferOrArrayBufferViewOrDictionary::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+BooleanOrStringOrUnrestrictedDouble::BooleanOrStringOrUnrestrictedDouble()
+    : m_type(SpecificTypeNone)
+{
+}
+
+bool BooleanOrStringOrUnrestrictedDouble::getAsBoolean() const
+{
+    ASSERT(isBoolean());
+    return m_boolean;
+}
+
+void BooleanOrStringOrUnrestrictedDouble::setBoolean(bool value)
+{
+    ASSERT(isNull());
+    m_boolean = value;
+    m_type = SpecificTypeBoolean;
+}
+
+BooleanOrStringOrUnrestrictedDouble BooleanOrStringOrUnrestrictedDouble::fromBoolean(bool value)
+{
+    BooleanOrStringOrUnrestrictedDouble container;
+    container.setBoolean(value);
+    return container;
+}
+
+String BooleanOrStringOrUnrestrictedDouble::getAsString() const
+{
+    ASSERT(isString());
+    return m_string;
+}
+
+void BooleanOrStringOrUnrestrictedDouble::setString(String value)
+{
+    ASSERT(isNull());
+    m_string = value;
+    m_type = SpecificTypeString;
+}
+
+BooleanOrStringOrUnrestrictedDouble BooleanOrStringOrUnrestrictedDouble::fromString(String value)
+{
+    BooleanOrStringOrUnrestrictedDouble container;
+    container.setString(value);
+    return container;
+}
+
+double BooleanOrStringOrUnrestrictedDouble::getAsUnrestrictedDouble() const
+{
+    ASSERT(isUnrestrictedDouble());
+    return m_unrestrictedDouble;
+}
+
+void BooleanOrStringOrUnrestrictedDouble::setUnrestrictedDouble(double value)
+{
+    ASSERT(isNull());
+    m_unrestrictedDouble = value;
+    m_type = SpecificTypeUnrestrictedDouble;
+}
+
+BooleanOrStringOrUnrestrictedDouble BooleanOrStringOrUnrestrictedDouble::fromUnrestrictedDouble(double value)
+{
+    BooleanOrStringOrUnrestrictedDouble container;
+    container.setUnrestrictedDouble(value);
+    return container;
+}
+
+BooleanOrStringOrUnrestrictedDouble::BooleanOrStringOrUnrestrictedDouble(const BooleanOrStringOrUnrestrictedDouble&) = default;
+BooleanOrStringOrUnrestrictedDouble::~BooleanOrStringOrUnrestrictedDouble() = default;
+BooleanOrStringOrUnrestrictedDouble& BooleanOrStringOrUnrestrictedDouble::operator=(const BooleanOrStringOrUnrestrictedDouble&) = default;
+
+DEFINE_TRACE(BooleanOrStringOrUnrestrictedDouble)
+{
+}
+
+void V8BooleanOrStringOrUnrestrictedDouble::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, BooleanOrStringOrUnrestrictedDouble& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (v8Value->IsBoolean()) {
+        impl.setBoolean(v8Value.As<v8::Boolean>()->Value());
+        return;
+    }
+
+    if (v8Value->IsNumber()) {
+        double cppValue = toDouble(isolate, v8Value, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setUnrestrictedDouble(cppValue);
+        return;
+    }
+
+    {
+        V8StringResource<> cppValue = v8Value;
+        if (!cppValue.prepare(exceptionState))
+            return;
+        impl.setString(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const BooleanOrStringOrUnrestrictedDouble& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case BooleanOrStringOrUnrestrictedDouble::SpecificTypeNone:
+        return v8::Null(isolate);
+    case BooleanOrStringOrUnrestrictedDouble::SpecificTypeBoolean:
+        return v8Boolean(impl.getAsBoolean(), isolate);
+    case BooleanOrStringOrUnrestrictedDouble::SpecificTypeString:
+        return v8String(isolate, impl.getAsString());
+    case BooleanOrStringOrUnrestrictedDouble::SpecificTypeUnrestrictedDouble:
+        return v8::Number::New(isolate, impl.getAsUnrestrictedDouble());
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+BooleanOrStringOrUnrestrictedDouble NativeValueTraits<BooleanOrStringOrUnrestrictedDouble>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    BooleanOrStringOrUnrestrictedDouble impl;
+    V8BooleanOrStringOrUnrestrictedDouble::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+DoubleOrString::DoubleOrString()
+    : m_type(SpecificTypeNone)
+{
+}
+
+double DoubleOrString::getAsDouble() const
+{
+    ASSERT(isDouble());
+    return m_double;
+}
+
+void DoubleOrString::setDouble(double value)
+{
+    ASSERT(isNull());
+    m_double = value;
+    m_type = SpecificTypeDouble;
+}
+
+DoubleOrString DoubleOrString::fromDouble(double value)
+{
+    DoubleOrString container;
+    container.setDouble(value);
+    return container;
+}
+
+String DoubleOrString::getAsString() const
+{
+    ASSERT(isString());
+    return m_string;
+}
+
+void DoubleOrString::setString(String value)
+{
+    ASSERT(isNull());
+    m_string = value;
+    m_type = SpecificTypeString;
+}
+
+DoubleOrString DoubleOrString::fromString(String value)
+{
+    DoubleOrString container;
+    container.setString(value);
+    return container;
+}
+
+DoubleOrString::DoubleOrString(const DoubleOrString&) = default;
+DoubleOrString::~DoubleOrString() = default;
+DoubleOrString& DoubleOrString::operator=(const DoubleOrString&) = default;
+
+DEFINE_TRACE(DoubleOrString)
+{
+}
+
+void V8DoubleOrString::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, DoubleOrString& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (v8Value->IsNumber()) {
+        double cppValue = toRestrictedDouble(isolate, v8Value, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setDouble(cppValue);
+        return;
+    }
+
+    {
+        V8StringResource<> cppValue = v8Value;
+        if (!cppValue.prepare(exceptionState))
+            return;
+        impl.setString(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const DoubleOrString& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case DoubleOrString::SpecificTypeNone:
+        return v8::Null(isolate);
+    case DoubleOrString::SpecificTypeDouble:
+        return v8::Number::New(isolate, impl.getAsDouble());
+    case DoubleOrString::SpecificTypeString:
+        return v8String(isolate, impl.getAsString());
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+DoubleOrString NativeValueTraits<DoubleOrString>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    DoubleOrString impl;
+    V8DoubleOrString::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+LongOrTestDictionary::LongOrTestDictionary()
+    : m_type(SpecificTypeNone)
+{
+}
+
+int LongOrTestDictionary::getAsLong() const
+{
+    ASSERT(isLong());
+    return m_long;
+}
+
+void LongOrTestDictionary::setLong(int value)
+{
+    ASSERT(isNull());
+    m_long = value;
+    m_type = SpecificTypeLong;
+}
+
+LongOrTestDictionary LongOrTestDictionary::fromLong(int value)
+{
+    LongOrTestDictionary container;
+    container.setLong(value);
+    return container;
+}
+
+TestDictionary LongOrTestDictionary::getAsTestDictionary() const
+{
+    ASSERT(isTestDictionary());
+    return m_testDictionary;
+}
+
+void LongOrTestDictionary::setTestDictionary(TestDictionary value)
+{
+    ASSERT(isNull());
+    m_testDictionary = value;
+    m_type = SpecificTypeTestDictionary;
+}
+
+LongOrTestDictionary LongOrTestDictionary::fromTestDictionary(TestDictionary value)
+{
+    LongOrTestDictionary container;
+    container.setTestDictionary(value);
+    return container;
+}
+
+LongOrTestDictionary::LongOrTestDictionary(const LongOrTestDictionary&) = default;
+LongOrTestDictionary::~LongOrTestDictionary() = default;
+LongOrTestDictionary& LongOrTestDictionary::operator=(const LongOrTestDictionary&) = default;
+
+DEFINE_TRACE(LongOrTestDictionary)
+{
+    visitor->trace(m_testDictionary);
+}
+
+void V8LongOrTestDictionary::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, LongOrTestDictionary& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (isUndefinedOrNull(v8Value) || v8Value->IsObject()) {
+        TestDictionary cppValue;
+        V8TestDictionary::toImpl(isolate, v8Value, cppValue, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setTestDictionary(cppValue);
+        return;
+    }
+
+    if (v8Value->IsNumber()) {
+        int cppValue = toInt32(isolate, v8Value, NormalConversion, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setLong(cppValue);
+        return;
+    }
+
+    {
+        int cppValue = toInt32(isolate, v8Value, NormalConversion, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setLong(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const LongOrTestDictionary& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case LongOrTestDictionary::SpecificTypeNone:
+        return v8::Null(isolate);
+    case LongOrTestDictionary::SpecificTypeLong:
+        return v8::Integer::New(isolate, impl.getAsLong());
+    case LongOrTestDictionary::SpecificTypeTestDictionary:
+        return toV8(impl.getAsTestDictionary(), creationContext, isolate);
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+LongOrTestDictionary NativeValueTraits<LongOrTestDictionary>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    LongOrTestDictionary impl;
+    V8LongOrTestDictionary::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+NodeOrNodeList::NodeOrNodeList()
+    : m_type(SpecificTypeNone)
+{
+}
+
+Node* NodeOrNodeList::getAsNode() const
+{
+    ASSERT(isNode());
+    return m_node;
+}
+
+void NodeOrNodeList::setNode(Node* value)
+{
+    ASSERT(isNull());
+    m_node = value;
+    m_type = SpecificTypeNode;
+}
+
+NodeOrNodeList NodeOrNodeList::fromNode(Node* value)
+{
+    NodeOrNodeList container;
+    container.setNode(value);
+    return container;
+}
+
+NodeList* NodeOrNodeList::getAsNodeList() const
+{
+    ASSERT(isNodeList());
+    return m_nodeList;
+}
+
+void NodeOrNodeList::setNodeList(NodeList* value)
+{
+    ASSERT(isNull());
+    m_nodeList = value;
+    m_type = SpecificTypeNodeList;
+}
+
+NodeOrNodeList NodeOrNodeList::fromNodeList(NodeList* value)
+{
+    NodeOrNodeList container;
+    container.setNodeList(value);
+    return container;
+}
+
+NodeOrNodeList::NodeOrNodeList(const NodeOrNodeList&) = default;
+NodeOrNodeList::~NodeOrNodeList() = default;
+NodeOrNodeList& NodeOrNodeList::operator=(const NodeOrNodeList&) = default;
+
+DEFINE_TRACE(NodeOrNodeList)
+{
+    visitor->trace(m_node);
+    visitor->trace(m_nodeList);
+}
+
+void V8NodeOrNodeList::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, NodeOrNodeList& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (V8Node::hasInstance(v8Value, isolate)) {
+        Node* cppValue = V8Node::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setNode(cppValue);
+        return;
+    }
+
+    if (V8NodeList::hasInstance(v8Value, isolate)) {
+        NodeList* cppValue = V8NodeList::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setNodeList(cppValue);
+        return;
+    }
+
+    exceptionState.throwTypeError("The provided value is not of type '(Node or NodeList)'");
+}
+
+v8::Local<v8::Value> toV8(const NodeOrNodeList& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case NodeOrNodeList::SpecificTypeNone:
+        return v8::Null(isolate);
+    case NodeOrNodeList::SpecificTypeNode:
+        return toV8(impl.getAsNode(), creationContext, isolate);
+    case NodeOrNodeList::SpecificTypeNodeList:
+        return toV8(impl.getAsNodeList(), creationContext, isolate);
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+NodeOrNodeList NativeValueTraits<NodeOrNodeList>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    NodeOrNodeList impl;
+    V8NodeOrNodeList::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+StringOrArrayBufferOrArrayBufferView::StringOrArrayBufferOrArrayBufferView()
+    : m_type(SpecificTypeNone)
+{
+}
+
+String StringOrArrayBufferOrArrayBufferView::getAsString() const
+{
+    ASSERT(isString());
+    return m_string;
+}
+
+void StringOrArrayBufferOrArrayBufferView::setString(String value)
+{
+    ASSERT(isNull());
+    m_string = value;
+    m_type = SpecificTypeString;
+}
+
+StringOrArrayBufferOrArrayBufferView StringOrArrayBufferOrArrayBufferView::fromString(String value)
+{
+    StringOrArrayBufferOrArrayBufferView container;
+    container.setString(value);
+    return container;
+}
+
+TestArrayBuffer* StringOrArrayBufferOrArrayBufferView::getAsArrayBuffer() const
+{
+    ASSERT(isArrayBuffer());
+    return m_arrayBuffer;
+}
+
+void StringOrArrayBufferOrArrayBufferView::setArrayBuffer(TestArrayBuffer* value)
+{
+    ASSERT(isNull());
+    m_arrayBuffer = value;
+    m_type = SpecificTypeArrayBuffer;
+}
+
+StringOrArrayBufferOrArrayBufferView StringOrArrayBufferOrArrayBufferView::fromArrayBuffer(TestArrayBuffer* value)
+{
+    StringOrArrayBufferOrArrayBufferView container;
+    container.setArrayBuffer(value);
+    return container;
+}
+
+TestArrayBufferView* StringOrArrayBufferOrArrayBufferView::getAsArrayBufferView() const
+{
+    ASSERT(isArrayBufferView());
+    return m_arrayBufferView;
+}
+
+void StringOrArrayBufferOrArrayBufferView::setArrayBufferView(TestArrayBufferView* value)
+{
+    ASSERT(isNull());
+    m_arrayBufferView = value;
+    m_type = SpecificTypeArrayBufferView;
+}
+
+StringOrArrayBufferOrArrayBufferView StringOrArrayBufferOrArrayBufferView::fromArrayBufferView(TestArrayBufferView* value)
+{
+    StringOrArrayBufferOrArrayBufferView container;
+    container.setArrayBufferView(value);
+    return container;
+}
+
+StringOrArrayBufferOrArrayBufferView::StringOrArrayBufferOrArrayBufferView(const StringOrArrayBufferOrArrayBufferView&) = default;
+StringOrArrayBufferOrArrayBufferView::~StringOrArrayBufferOrArrayBufferView() = default;
+StringOrArrayBufferOrArrayBufferView& StringOrArrayBufferOrArrayBufferView::operator=(const StringOrArrayBufferOrArrayBufferView&) = default;
+
+DEFINE_TRACE(StringOrArrayBufferOrArrayBufferView)
+{
+    visitor->trace(m_arrayBuffer);
+    visitor->trace(m_arrayBufferView);
+}
+
+void V8StringOrArrayBufferOrArrayBufferView::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, StringOrArrayBufferOrArrayBufferView& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (V8ArrayBuffer::hasInstance(v8Value, isolate)) {
+        TestArrayBuffer* cppValue = V8ArrayBuffer::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setArrayBuffer(cppValue);
+        return;
+    }
+
+    if (V8ArrayBufferView::hasInstance(v8Value, isolate)) {
+        TestArrayBufferView* cppValue = V8ArrayBufferView::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setArrayBufferView(cppValue);
+        return;
+    }
+
+    {
+        V8StringResource<> cppValue = v8Value;
+        if (!cppValue.prepare(exceptionState))
+            return;
+        impl.setString(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const StringOrArrayBufferOrArrayBufferView& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case StringOrArrayBufferOrArrayBufferView::SpecificTypeNone:
+        return v8::Null(isolate);
+    case StringOrArrayBufferOrArrayBufferView::SpecificTypeString:
+        return v8String(isolate, impl.getAsString());
+    case StringOrArrayBufferOrArrayBufferView::SpecificTypeArrayBuffer:
+        return toV8(impl.getAsArrayBuffer(), creationContext, isolate);
+    case StringOrArrayBufferOrArrayBufferView::SpecificTypeArrayBufferView:
+        return toV8(impl.getAsArrayBufferView(), creationContext, isolate);
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+StringOrArrayBufferOrArrayBufferView NativeValueTraits<StringOrArrayBufferOrArrayBufferView>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    StringOrArrayBufferOrArrayBufferView impl;
+    V8StringOrArrayBufferOrArrayBufferView::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+StringOrDouble::StringOrDouble()
+    : m_type(SpecificTypeNone)
+{
+}
+
+String StringOrDouble::getAsString() const
+{
+    ASSERT(isString());
+    return m_string;
+}
+
+void StringOrDouble::setString(String value)
+{
+    ASSERT(isNull());
+    m_string = value;
+    m_type = SpecificTypeString;
+}
+
+StringOrDouble StringOrDouble::fromString(String value)
+{
+    StringOrDouble container;
+    container.setString(value);
+    return container;
+}
+
+double StringOrDouble::getAsDouble() const
+{
+    ASSERT(isDouble());
+    return m_double;
+}
+
+void StringOrDouble::setDouble(double value)
+{
+    ASSERT(isNull());
+    m_double = value;
+    m_type = SpecificTypeDouble;
+}
+
+StringOrDouble StringOrDouble::fromDouble(double value)
+{
+    StringOrDouble container;
+    container.setDouble(value);
+    return container;
+}
+
+StringOrDouble::StringOrDouble(const StringOrDouble&) = default;
+StringOrDouble::~StringOrDouble() = default;
+StringOrDouble& StringOrDouble::operator=(const StringOrDouble&) = default;
+
+DEFINE_TRACE(StringOrDouble)
+{
+}
+
+void V8StringOrDouble::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, StringOrDouble& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (v8Value->IsNumber()) {
+        double cppValue = toRestrictedDouble(isolate, v8Value, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setDouble(cppValue);
+        return;
+    }
+
+    {
+        V8StringResource<> cppValue = v8Value;
+        if (!cppValue.prepare(exceptionState))
+            return;
+        impl.setString(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const StringOrDouble& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case StringOrDouble::SpecificTypeNone:
+        return v8::Null(isolate);
+    case StringOrDouble::SpecificTypeString:
+        return v8String(isolate, impl.getAsString());
+    case StringOrDouble::SpecificTypeDouble:
+        return v8::Number::New(isolate, impl.getAsDouble());
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+StringOrDouble NativeValueTraits<StringOrDouble>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    StringOrDouble impl;
+    V8StringOrDouble::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+StringOrStringSequence::StringOrStringSequence()
+    : m_type(SpecificTypeNone)
+{
+}
+
+String StringOrStringSequence::getAsString() const
+{
+    ASSERT(isString());
+    return m_string;
+}
+
+void StringOrStringSequence::setString(String value)
+{
+    ASSERT(isNull());
+    m_string = value;
+    m_type = SpecificTypeString;
+}
+
+StringOrStringSequence StringOrStringSequence::fromString(String value)
+{
+    StringOrStringSequence container;
+    container.setString(value);
+    return container;
+}
+
+const Vector<String>& StringOrStringSequence::getAsStringSequence() const
+{
+    ASSERT(isStringSequence());
+    return m_stringSequence;
+}
+
+void StringOrStringSequence::setStringSequence(const Vector<String>& value)
+{
+    ASSERT(isNull());
+    m_stringSequence = value;
+    m_type = SpecificTypeStringSequence;
+}
+
+StringOrStringSequence StringOrStringSequence::fromStringSequence(const Vector<String>& value)
+{
+    StringOrStringSequence container;
+    container.setStringSequence(value);
+    return container;
+}
+
+StringOrStringSequence::StringOrStringSequence(const StringOrStringSequence&) = default;
+StringOrStringSequence::~StringOrStringSequence() = default;
+StringOrStringSequence& StringOrStringSequence::operator=(const StringOrStringSequence&) = default;
+
+DEFINE_TRACE(StringOrStringSequence)
+{
+}
+
+void V8StringOrStringSequence::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, StringOrStringSequence& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (v8Value->IsArray()) {
+        Vector<String> cppValue = toImplArray<Vector<String>>(v8Value, 0, isolate, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setStringSequence(cppValue);
+        return;
+    }
+
+    {
+        V8StringResource<> cppValue = v8Value;
+        if (!cppValue.prepare(exceptionState))
+            return;
+        impl.setString(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const StringOrStringSequence& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case StringOrStringSequence::SpecificTypeNone:
+        return v8::Null(isolate);
+    case StringOrStringSequence::SpecificTypeString:
+        return v8String(isolate, impl.getAsString());
+    case StringOrStringSequence::SpecificTypeStringSequence:
+        return toV8(impl.getAsStringSequence(), creationContext, isolate);
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+StringOrStringSequence NativeValueTraits<StringOrStringSequence>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    StringOrStringSequence impl;
+    V8StringOrStringSequence::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+TestEnumOrDouble::TestEnumOrDouble()
+    : m_type(SpecificTypeNone)
+{
+}
+
+String TestEnumOrDouble::getAsTestEnum() const
+{
+    ASSERT(isTestEnum());
+    return m_testEnum;
+}
+
+void TestEnumOrDouble::setTestEnum(String value)
+{
+    ASSERT(isNull());
+    NonThrowableExceptionState exceptionState;
+    const char* validValues[] = {
+        "",
+        "EnumValue1",
+        "EnumValue2",
+        "EnumValue3",
+    };
+    if (!isValidEnum(value, validValues, WTF_ARRAY_LENGTH(validValues), "TestEnum", exceptionState)) {
+        ASSERT_NOT_REACHED();
+        return;
+    }
+    m_testEnum = value;
+    m_type = SpecificTypeTestEnum;
+}
+
+TestEnumOrDouble TestEnumOrDouble::fromTestEnum(String value)
+{
+    TestEnumOrDouble container;
+    container.setTestEnum(value);
+    return container;
+}
+
+double TestEnumOrDouble::getAsDouble() const
+{
+    ASSERT(isDouble());
+    return m_double;
+}
+
+void TestEnumOrDouble::setDouble(double value)
+{
+    ASSERT(isNull());
+    m_double = value;
+    m_type = SpecificTypeDouble;
+}
+
+TestEnumOrDouble TestEnumOrDouble::fromDouble(double value)
+{
+    TestEnumOrDouble container;
+    container.setDouble(value);
+    return container;
+}
+
+TestEnumOrDouble::TestEnumOrDouble(const TestEnumOrDouble&) = default;
+TestEnumOrDouble::~TestEnumOrDouble() = default;
+TestEnumOrDouble& TestEnumOrDouble::operator=(const TestEnumOrDouble&) = default;
+
+DEFINE_TRACE(TestEnumOrDouble)
+{
+}
+
+void V8TestEnumOrDouble::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, TestEnumOrDouble& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (v8Value->IsNumber()) {
+        double cppValue = toRestrictedDouble(isolate, v8Value, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setDouble(cppValue);
+        return;
+    }
+
+    {
+        V8StringResource<> cppValue = v8Value;
+        if (!cppValue.prepare(exceptionState))
+            return;
+        const char* validValues[] = {
+            "",
+            "EnumValue1",
+            "EnumValue2",
+            "EnumValue3",
+        };
+        if (!isValidEnum(cppValue, validValues, WTF_ARRAY_LENGTH(validValues), "TestEnum", exceptionState))
+            return;
+        impl.setTestEnum(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const TestEnumOrDouble& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case TestEnumOrDouble::SpecificTypeNone:
+        return v8::Null(isolate);
+    case TestEnumOrDouble::SpecificTypeTestEnum:
+        return v8String(isolate, impl.getAsTestEnum());
+    case TestEnumOrDouble::SpecificTypeDouble:
+        return v8::Number::New(isolate, impl.getAsDouble());
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+TestEnumOrDouble NativeValueTraits<TestEnumOrDouble>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    TestEnumOrDouble impl;
+    V8TestEnumOrDouble::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+TestInterface2OrUint8Array::TestInterface2OrUint8Array()
+    : m_type(SpecificTypeNone)
+{
+}
+
+TestInterface2* TestInterface2OrUint8Array::getAsTestInterface2() const
+{
+    ASSERT(isTestInterface2());
+    return m_testInterface2;
+}
+
+void TestInterface2OrUint8Array::setTestInterface2(TestInterface2* value)
+{
+    ASSERT(isNull());
+    m_testInterface2 = value;
+    m_type = SpecificTypeTestInterface2;
+}
+
+TestInterface2OrUint8Array TestInterface2OrUint8Array::fromTestInterface2(TestInterface2* value)
+{
+    TestInterface2OrUint8Array container;
+    container.setTestInterface2(value);
+    return container;
+}
+
+DOMUint8Array* TestInterface2OrUint8Array::getAsUint8Array() const
+{
+    ASSERT(isUint8Array());
+    return m_uint8Array;
+}
+
+void TestInterface2OrUint8Array::setUint8Array(DOMUint8Array* value)
+{
+    ASSERT(isNull());
+    m_uint8Array = value;
+    m_type = SpecificTypeUint8Array;
+}
+
+TestInterface2OrUint8Array TestInterface2OrUint8Array::fromUint8Array(DOMUint8Array* value)
+{
+    TestInterface2OrUint8Array container;
+    container.setUint8Array(value);
+    return container;
+}
+
+TestInterface2OrUint8Array::TestInterface2OrUint8Array(const TestInterface2OrUint8Array&) = default;
+TestInterface2OrUint8Array::~TestInterface2OrUint8Array() = default;
+TestInterface2OrUint8Array& TestInterface2OrUint8Array::operator=(const TestInterface2OrUint8Array&) = default;
+
+DEFINE_TRACE(TestInterface2OrUint8Array)
+{
+    visitor->trace(m_testInterface2);
+    visitor->trace(m_uint8Array);
+}
+
+void V8TestInterface2OrUint8Array::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, TestInterface2OrUint8Array& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (V8TestInterface2::hasInstance(v8Value, isolate)) {
+        TestInterface2* cppValue = V8TestInterface2::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setTestInterface2(cppValue);
+        return;
+    }
+
+    if (V8Uint8Array::hasInstance(v8Value, isolate)) {
+        DOMUint8Array* cppValue = V8Uint8Array::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setUint8Array(cppValue);
+        return;
+    }
+
+    exceptionState.throwTypeError("The provided value is not of type '(TestInterface2 or Uint8Array)'");
+}
+
+v8::Local<v8::Value> toV8(const TestInterface2OrUint8Array& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case TestInterface2OrUint8Array::SpecificTypeNone:
+        return v8::Null(isolate);
+    case TestInterface2OrUint8Array::SpecificTypeTestInterface2:
+        return toV8(impl.getAsTestInterface2(), creationContext, isolate);
+    case TestInterface2OrUint8Array::SpecificTypeUint8Array:
+        return toV8(impl.getAsUint8Array(), creationContext, isolate);
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+TestInterface2OrUint8Array NativeValueTraits<TestInterface2OrUint8Array>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    TestInterface2OrUint8Array impl;
+    V8TestInterface2OrUint8Array::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+TestInterfaceGarbageCollectedOrString::TestInterfaceGarbageCollectedOrString()
+    : m_type(SpecificTypeNone)
+{
+}
+
+TestInterfaceGarbageCollected* TestInterfaceGarbageCollectedOrString::getAsTestInterfaceGarbageCollected() const
+{
+    ASSERT(isTestInterfaceGarbageCollected());
+    return m_testInterfaceGarbageCollected;
+}
+
+void TestInterfaceGarbageCollectedOrString::setTestInterfaceGarbageCollected(TestInterfaceGarbageCollected* value)
+{
+    ASSERT(isNull());
+    m_testInterfaceGarbageCollected = value;
+    m_type = SpecificTypeTestInterfaceGarbageCollected;
+}
+
+TestInterfaceGarbageCollectedOrString TestInterfaceGarbageCollectedOrString::fromTestInterfaceGarbageCollected(TestInterfaceGarbageCollected* value)
+{
+    TestInterfaceGarbageCollectedOrString container;
+    container.setTestInterfaceGarbageCollected(value);
+    return container;
+}
+
+String TestInterfaceGarbageCollectedOrString::getAsString() const
+{
+    ASSERT(isString());
+    return m_string;
+}
+
+void TestInterfaceGarbageCollectedOrString::setString(String value)
+{
+    ASSERT(isNull());
+    m_string = value;
+    m_type = SpecificTypeString;
+}
+
+TestInterfaceGarbageCollectedOrString TestInterfaceGarbageCollectedOrString::fromString(String value)
+{
+    TestInterfaceGarbageCollectedOrString container;
+    container.setString(value);
+    return container;
+}
+
+TestInterfaceGarbageCollectedOrString::TestInterfaceGarbageCollectedOrString(const TestInterfaceGarbageCollectedOrString&) = default;
+TestInterfaceGarbageCollectedOrString::~TestInterfaceGarbageCollectedOrString() = default;
+TestInterfaceGarbageCollectedOrString& TestInterfaceGarbageCollectedOrString::operator=(const TestInterfaceGarbageCollectedOrString&) = default;
+
+DEFINE_TRACE(TestInterfaceGarbageCollectedOrString)
+{
+    visitor->trace(m_testInterfaceGarbageCollected);
+}
+
+void V8TestInterfaceGarbageCollectedOrString::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, TestInterfaceGarbageCollectedOrString& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (V8TestInterfaceGarbageCollected::hasInstance(v8Value, isolate)) {
+        TestInterfaceGarbageCollected* cppValue = V8TestInterfaceGarbageCollected::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setTestInterfaceGarbageCollected(cppValue);
+        return;
+    }
+
+    {
+        V8StringResource<> cppValue = v8Value;
+        if (!cppValue.prepare(exceptionState))
+            return;
+        impl.setString(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const TestInterfaceGarbageCollectedOrString& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case TestInterfaceGarbageCollectedOrString::SpecificTypeNone:
+        return v8::Null(isolate);
+    case TestInterfaceGarbageCollectedOrString::SpecificTypeTestInterfaceGarbageCollected:
+        return toV8(impl.getAsTestInterfaceGarbageCollected(), creationContext, isolate);
+    case TestInterfaceGarbageCollectedOrString::SpecificTypeString:
+        return v8String(isolate, impl.getAsString());
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+TestInterfaceGarbageCollectedOrString NativeValueTraits<TestInterfaceGarbageCollectedOrString>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    TestInterfaceGarbageCollectedOrString impl;
+    V8TestInterfaceGarbageCollectedOrString::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+TestInterfaceOrLong::TestInterfaceOrLong()
+    : m_type(SpecificTypeNone)
+{
+}
+
+TestInterfaceImplementation* TestInterfaceOrLong::getAsTestInterface() const
+{
+    ASSERT(isTestInterface());
+    return m_testInterface;
+}
+
+void TestInterfaceOrLong::setTestInterface(TestInterfaceImplementation* value)
+{
+    ASSERT(isNull());
+    m_testInterface = value;
+    m_type = SpecificTypeTestInterface;
+}
+
+TestInterfaceOrLong TestInterfaceOrLong::fromTestInterface(TestInterfaceImplementation* value)
+{
+    TestInterfaceOrLong container;
+    container.setTestInterface(value);
+    return container;
+}
+
+int TestInterfaceOrLong::getAsLong() const
+{
+    ASSERT(isLong());
+    return m_long;
+}
+
+void TestInterfaceOrLong::setLong(int value)
+{
+    ASSERT(isNull());
+    m_long = value;
+    m_type = SpecificTypeLong;
+}
+
+TestInterfaceOrLong TestInterfaceOrLong::fromLong(int value)
+{
+    TestInterfaceOrLong container;
+    container.setLong(value);
+    return container;
+}
+
+TestInterfaceOrLong::TestInterfaceOrLong(const TestInterfaceOrLong&) = default;
+TestInterfaceOrLong::~TestInterfaceOrLong() = default;
+TestInterfaceOrLong& TestInterfaceOrLong::operator=(const TestInterfaceOrLong&) = default;
+
+DEFINE_TRACE(TestInterfaceOrLong)
+{
+    visitor->trace(m_testInterface);
+}
+
+void V8TestInterfaceOrLong::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, TestInterfaceOrLong& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (V8TestInterface::hasInstance(v8Value, isolate)) {
+        TestInterfaceImplementation* cppValue = V8TestInterface::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setTestInterface(cppValue);
+        return;
+    }
+
+    if (v8Value->IsNumber()) {
+        int cppValue = toInt32(isolate, v8Value, NormalConversion, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setLong(cppValue);
+        return;
+    }
+
+    {
+        int cppValue = toInt32(isolate, v8Value, NormalConversion, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setLong(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const TestInterfaceOrLong& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case TestInterfaceOrLong::SpecificTypeNone:
+        return v8::Null(isolate);
+    case TestInterfaceOrLong::SpecificTypeTestInterface:
+        return toV8(impl.getAsTestInterface(), creationContext, isolate);
+    case TestInterfaceOrLong::SpecificTypeLong:
+        return v8::Integer::New(isolate, impl.getAsLong());
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+TestInterfaceOrLong NativeValueTraits<TestInterfaceOrLong>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    TestInterfaceOrLong impl;
+    V8TestInterfaceOrLong::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+TestInterfaceOrTestInterfaceEmpty::TestInterfaceOrTestInterfaceEmpty()
+    : m_type(SpecificTypeNone)
+{
+}
+
+TestInterfaceImplementation* TestInterfaceOrTestInterfaceEmpty::getAsTestInterface() const
+{
+    ASSERT(isTestInterface());
+    return m_testInterface;
+}
+
+void TestInterfaceOrTestInterfaceEmpty::setTestInterface(TestInterfaceImplementation* value)
+{
+    ASSERT(isNull());
+    m_testInterface = value;
+    m_type = SpecificTypeTestInterface;
+}
+
+TestInterfaceOrTestInterfaceEmpty TestInterfaceOrTestInterfaceEmpty::fromTestInterface(TestInterfaceImplementation* value)
+{
+    TestInterfaceOrTestInterfaceEmpty container;
+    container.setTestInterface(value);
+    return container;
+}
+
+TestInterfaceEmpty* TestInterfaceOrTestInterfaceEmpty::getAsTestInterfaceEmpty() const
+{
+    ASSERT(isTestInterfaceEmpty());
+    return m_testInterfaceEmpty;
+}
+
+void TestInterfaceOrTestInterfaceEmpty::setTestInterfaceEmpty(TestInterfaceEmpty* value)
+{
+    ASSERT(isNull());
+    m_testInterfaceEmpty = value;
+    m_type = SpecificTypeTestInterfaceEmpty;
+}
+
+TestInterfaceOrTestInterfaceEmpty TestInterfaceOrTestInterfaceEmpty::fromTestInterfaceEmpty(TestInterfaceEmpty* value)
+{
+    TestInterfaceOrTestInterfaceEmpty container;
+    container.setTestInterfaceEmpty(value);
+    return container;
+}
+
+TestInterfaceOrTestInterfaceEmpty::TestInterfaceOrTestInterfaceEmpty(const TestInterfaceOrTestInterfaceEmpty&) = default;
+TestInterfaceOrTestInterfaceEmpty::~TestInterfaceOrTestInterfaceEmpty() = default;
+TestInterfaceOrTestInterfaceEmpty& TestInterfaceOrTestInterfaceEmpty::operator=(const TestInterfaceOrTestInterfaceEmpty&) = default;
+
+DEFINE_TRACE(TestInterfaceOrTestInterfaceEmpty)
+{
+    visitor->trace(m_testInterface);
+    visitor->trace(m_testInterfaceEmpty);
+}
+
+void V8TestInterfaceOrTestInterfaceEmpty::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, TestInterfaceOrTestInterfaceEmpty& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (V8TestInterface::hasInstance(v8Value, isolate)) {
+        TestInterfaceImplementation* cppValue = V8TestInterface::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setTestInterface(cppValue);
+        return;
+    }
+
+    if (V8TestInterfaceEmpty::hasInstance(v8Value, isolate)) {
+        TestInterfaceEmpty* cppValue = V8TestInterfaceEmpty::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+        impl.setTestInterfaceEmpty(cppValue);
+        return;
+    }
+
+    exceptionState.throwTypeError("The provided value is not of type '(TestInterface or TestInterfaceEmpty)'");
+}
+
+v8::Local<v8::Value> toV8(const TestInterfaceOrTestInterfaceEmpty& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case TestInterfaceOrTestInterfaceEmpty::SpecificTypeNone:
+        return v8::Null(isolate);
+    case TestInterfaceOrTestInterfaceEmpty::SpecificTypeTestInterface:
+        return toV8(impl.getAsTestInterface(), creationContext, isolate);
+    case TestInterfaceOrTestInterfaceEmpty::SpecificTypeTestInterfaceEmpty:
+        return toV8(impl.getAsTestInterfaceEmpty(), creationContext, isolate);
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+TestInterfaceOrTestInterfaceEmpty NativeValueTraits<TestInterfaceOrTestInterfaceEmpty>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    TestInterfaceOrTestInterfaceEmpty impl;
+    V8TestInterfaceOrTestInterfaceEmpty::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+UnrestrictedDoubleOrString::UnrestrictedDoubleOrString()
+    : m_type(SpecificTypeNone)
+{
+}
+
+double UnrestrictedDoubleOrString::getAsUnrestrictedDouble() const
+{
+    ASSERT(isUnrestrictedDouble());
+    return m_unrestrictedDouble;
+}
+
+void UnrestrictedDoubleOrString::setUnrestrictedDouble(double value)
+{
+    ASSERT(isNull());
+    m_unrestrictedDouble = value;
+    m_type = SpecificTypeUnrestrictedDouble;
+}
+
+UnrestrictedDoubleOrString UnrestrictedDoubleOrString::fromUnrestrictedDouble(double value)
+{
+    UnrestrictedDoubleOrString container;
+    container.setUnrestrictedDouble(value);
+    return container;
+}
+
+String UnrestrictedDoubleOrString::getAsString() const
+{
+    ASSERT(isString());
+    return m_string;
+}
+
+void UnrestrictedDoubleOrString::setString(String value)
+{
+    ASSERT(isNull());
+    m_string = value;
+    m_type = SpecificTypeString;
+}
+
+UnrestrictedDoubleOrString UnrestrictedDoubleOrString::fromString(String value)
+{
+    UnrestrictedDoubleOrString container;
+    container.setString(value);
+    return container;
+}
+
+UnrestrictedDoubleOrString::UnrestrictedDoubleOrString(const UnrestrictedDoubleOrString&) = default;
+UnrestrictedDoubleOrString::~UnrestrictedDoubleOrString() = default;
+UnrestrictedDoubleOrString& UnrestrictedDoubleOrString::operator=(const UnrestrictedDoubleOrString&) = default;
+
+DEFINE_TRACE(UnrestrictedDoubleOrString)
+{
+}
+
+void V8UnrestrictedDoubleOrString::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, UnrestrictedDoubleOrString& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState)
+{
+    if (v8Value.IsEmpty())
+        return;
+
+    if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+        return;
+
+    if (v8Value->IsNumber()) {
+        double cppValue = toDouble(isolate, v8Value, exceptionState);
+        if (exceptionState.hadException())
+            return;
+        impl.setUnrestrictedDouble(cppValue);
+        return;
+    }
+
+    {
+        V8StringResource<> cppValue = v8Value;
+        if (!cppValue.prepare(exceptionState))
+            return;
+        impl.setString(cppValue);
+        return;
+    }
+
+}
+
+v8::Local<v8::Value> toV8(const UnrestrictedDoubleOrString& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    switch (impl.m_type) {
+    case UnrestrictedDoubleOrString::SpecificTypeNone:
+        return v8::Null(isolate);
+    case UnrestrictedDoubleOrString::SpecificTypeUnrestrictedDouble:
+        return v8::Number::New(isolate, impl.getAsUnrestrictedDouble());
+    case UnrestrictedDoubleOrString::SpecificTypeString:
+        return v8String(isolate, impl.getAsString());
+    default:
+        ASSERT_NOT_REACHED();
+    }
+    return v8::Local<v8::Value>();
+}
+
+UnrestrictedDoubleOrString NativeValueTraits<UnrestrictedDoubleOrString>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
+{
+    UnrestrictedDoubleOrString impl;
+    V8UnrestrictedDoubleOrString::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+    return impl;
+}
+
+} // namespace blink