bindings: Add support for nested union types

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

Index: third_party/WebKit/Source/bindings/tests/results/core/LongSequenceOrEvent.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/LongSequenceOrEvent.cpp b/third_party/WebKit/Source/bindings/tests/results/core/LongSequenceOrEvent.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..7e5e41dada620b2b934ba735c5b66c20eac630d4
--- /dev/null
+++ b/third_party/WebKit/Source/bindings/tests/results/core/LongSequenceOrEvent.cpp
@@ -0,0 +1,109 @@
+// 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.cpp.tmpl
+
+// clang-format off
+#include "LongSequenceOrEvent.h"
+
+#include "bindings/core/v8/IDLTypes.h"
+#include "bindings/core/v8/NativeValueTraitsImpl.h"
+#include "bindings/core/v8/ToV8.h"
+#include "bindings/core/v8/V8Event.h"
+
+namespace blink {
+
+LongSequenceOrEvent::LongSequenceOrEvent() : m_type(SpecificTypeNone) {}
+
+Event* LongSequenceOrEvent::getAsEvent() const {
+  DCHECK(isEvent());
+  return m_event;
+}
+
+void LongSequenceOrEvent::setEvent(Event* value) {
+  DCHECK(isNull());
+  m_event = value;
+  m_type = SpecificTypeEvent;
+}
+
+LongSequenceOrEvent LongSequenceOrEvent::fromEvent(Event* value) {
+  LongSequenceOrEvent container;
+  container.setEvent(value);
+  return container;
+}
+
+const Vector<int32_t>& LongSequenceOrEvent::getAsLongSequence() const {
+  DCHECK(isLongSequence());
+  return m_longSequence;
+}
+
+void LongSequenceOrEvent::setLongSequence(const Vector<int32_t>& value) {
+  DCHECK(isNull());
+  m_longSequence = value;
+  m_type = SpecificTypeLongSequence;
+}
+
+LongSequenceOrEvent LongSequenceOrEvent::fromLongSequence(const Vector<int32_t>& value) {
+  LongSequenceOrEvent container;
+  container.setLongSequence(value);
+  return container;
+}
+
+LongSequenceOrEvent::LongSequenceOrEvent(const LongSequenceOrEvent&) = default;
+LongSequenceOrEvent::~LongSequenceOrEvent() = default;
+LongSequenceOrEvent& LongSequenceOrEvent::operator=(const LongSequenceOrEvent&) = default;
+
+DEFINE_TRACE(LongSequenceOrEvent) {
+  visitor->trace(m_event);
+}
+
+void V8LongSequenceOrEvent::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, LongSequenceOrEvent& impl, UnionTypeConversionMode conversionMode, ExceptionState& exceptionState) {
+  if (v8Value.IsEmpty())
+    return;
+
+  if (conversionMode == UnionTypeConversionMode::Nullable && isUndefinedOrNull(v8Value))
+    return;
+
+  if (V8Event::hasInstance(v8Value, isolate)) {
+    Event* cppValue = V8Event::toImpl(v8::Local<v8::Object>::Cast(v8Value));
+    impl.setEvent(cppValue);
+    return;
+  }
+
+  if (v8Value->IsArray()) {
+    Vector<int32_t> cppValue = toImplArray<Vector<int32_t>>(v8Value, 0, isolate, exceptionState);
+    if (exceptionState.hadException())
+      return;
+    impl.setLongSequence(cppValue);
+    return;
+  }
+
+  exceptionState.throwTypeError("The provided value is not of type '(sequence<long> or Event)'");
+}
+
+v8::Local<v8::Value> ToV8(const LongSequenceOrEvent& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate) {
+  switch (impl.m_type) {
+    case LongSequenceOrEvent::SpecificTypeNone:
+      return v8::Null(isolate);
+    case LongSequenceOrEvent::SpecificTypeEvent:
+      return ToV8(impl.getAsEvent(), creationContext, isolate);
+    case LongSequenceOrEvent::SpecificTypeLongSequence:
+      return ToV8(impl.getAsLongSequence(), creationContext, isolate);
+    default:
+      NOTREACHED();
+  }
+  return v8::Local<v8::Value>();
+}
+
+LongSequenceOrEvent NativeValueTraits<LongSequenceOrEvent>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState) {
+  LongSequenceOrEvent impl;
+  V8LongSequenceOrEvent::toImpl(isolate, value, impl, UnionTypeConversionMode::NotNullable, exceptionState);
+  return impl;
+}
+
+}  // namespace blink