bindings: Add support for nested union types

third_party/WebKit/Source/bindings/tests/results/core/ByteStringOrNodeList.h

Index: third_party/WebKit/Source/bindings/tests/results/core/ByteStringOrNodeList.h
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/ByteStringOrNodeList.h b/third_party/WebKit/Source/bindings/tests/results/core/ByteStringOrNodeList.h
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index 0000000000000000000000000000000000000000..1df3f1831be2180db85b8894a510f7821271bc86
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+++ b/third_party/WebKit/Source/bindings/tests/results/core/ByteStringOrNodeList.h
@@ -0,0 +1,96 @@
+// 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!
+
+// This file has been generated from the Jinja2 template in
+// third_party/WebKit/Source/bindings/templates/union_container.h.tmpl
+
+// clang-format off
+#ifndef ByteStringOrNodeList_h
+#define ByteStringOrNodeList_h
+
+#include "bindings/core/v8/Dictionary.h"
+#include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/NativeValueTraits.h"
+#include "bindings/core/v8/V8Binding.h"
+#include "core/CoreExport.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class NodeList;
+
+class CORE_EXPORT ByteStringOrNodeList final {
+  DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
+ public:
+  ByteStringOrNodeList();
+  bool isNull() const { return m_type == SpecificTypeNone; }
+
+  bool isByteString() const { return m_type == SpecificTypeByteString; }
+  String getAsByteString() const;
+  void setByteString(String);
+  static ByteStringOrNodeList fromByteString(String);
+
+  bool isNodeList() const { return m_type == SpecificTypeNodeList; }
+  NodeList* getAsNodeList() const;
+  void setNodeList(NodeList*);
+  static ByteStringOrNodeList fromNodeList(NodeList*);
+
+  ByteStringOrNodeList(const ByteStringOrNodeList&);
+  ~ByteStringOrNodeList();
+  ByteStringOrNodeList& operator=(const ByteStringOrNodeList&);
+  DECLARE_TRACE();
+
+ private:
+  enum SpecificTypes {
+    SpecificTypeNone,
+    SpecificTypeByteString,
+    SpecificTypeNodeList,
+  };
+  SpecificTypes m_type;
+
+  String m_byteString;
+  Member<NodeList> m_nodeList;
+
+  friend CORE_EXPORT v8::Local<v8::Value> ToV8(const ByteStringOrNodeList&, v8::Local<v8::Object>, v8::Isolate*);
+};
+
+class V8ByteStringOrNodeList final {
+ public:
+  CORE_EXPORT static void toImpl(v8::Isolate*, v8::Local<v8::Value>, ByteStringOrNodeList&, UnionTypeConversionMode, ExceptionState&);
+};
+
+CORE_EXPORT v8::Local<v8::Value> ToV8(const ByteStringOrNodeList&, v8::Local<v8::Object>, v8::Isolate*);
+
+template <class CallbackInfo>
+inline void v8SetReturnValue(const CallbackInfo& callbackInfo, ByteStringOrNodeList& impl) {
+  v8SetReturnValue(callbackInfo, ToV8(impl, callbackInfo.Holder(), callbackInfo.GetIsolate()));
+}
+
+template <class CallbackInfo>
+inline void v8SetReturnValue(const CallbackInfo& callbackInfo, ByteStringOrNodeList& impl, v8::Local<v8::Object> creationContext) {
+  v8SetReturnValue(callbackInfo, ToV8(impl, creationContext, callbackInfo.GetIsolate()));
+}
+
+template <>
+struct NativeValueTraits<ByteStringOrNodeList> : public NativeValueTraitsBase<ByteStringOrNodeList> {
+  CORE_EXPORT static ByteStringOrNodeList nativeValue(v8::Isolate*, v8::Local<v8::Value>, ExceptionState&);
+};
+
+template <>
+struct V8TypeOf<ByteStringOrNodeList> {
+  typedef V8ByteStringOrNodeList Type;
+};
+
+}  // namespace blink
+
+// We need to set canInitializeWithMemset=true because HeapVector supports
+// items that can initialize with memset or have a vtable. It is safe to
+// set canInitializeWithMemset=true for a union type object in practice.
+// See https://codereview.chromium.org/1118993002/#msg5 for more details.
+WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::ByteStringOrNodeList);
+
+#endif  // ByteStringOrNodeList_h