1 files changed, 49 insertions, 0 deletions
diff --git a/deps/v8/src/objects/js-collection-inl.h b/deps/v8/src/objects/js-collection-inl.h
new file mode 100644
index 0000000000..7ad24bcf12
--- /dev/null
+++ b/deps/v8/src/objects/js-collection-inl.h
@@ -0,0 +1,49 @@
+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_OBJECTS_JS_COLLECTION_INL_H_
+#define V8_OBJECTS_JS_COLLECTION_INL_H_
+
+#include "src/objects/js-collection.h"
+
+// Has to be the last include (doesn't have include guards):
+#include "src/objects/object-macros.h"
+
+namespace v8 {
+namespace internal {
+
+ACCESSORS(JSCollection, table, Object, kTableOffset)
+ACCESSORS(JSCollectionIterator, table, Object, kTableOffset)
+ACCESSORS(JSCollectionIterator, index, Object, kIndexOffset)
+
+ACCESSORS(JSWeakCollection, table, Object, kTableOffset)
+ACCESSORS(JSWeakCollection, next, Object, kNextOffset)
+
+TYPE_CHECKER(JSMap, JS_MAP_TYPE)
+TYPE_CHECKER(JSSet, JS_SET_TYPE)
+TYPE_CHECKER(JSWeakMap, JS_WEAK_MAP_TYPE)
+TYPE_CHECKER(JSWeakSet, JS_WEAK_SET_TYPE)
+
+CAST_ACCESSOR(JSSet)
+CAST_ACCESSOR(JSSetIterator)
+CAST_ACCESSOR(JSMap)
+CAST_ACCESSOR(JSMapIterator)
+CAST_ACCESSOR(JSWeakCollection)
+CAST_ACCESSOR(JSWeakMap)
+CAST_ACCESSOR(JSWeakSet)
+
+Object* JSMapIterator::CurrentValue() {
+  OrderedHashMap* table(OrderedHashMap::cast(this->table()));
+  int index = Smi::ToInt(this->index());
+  Object* value = table->ValueAt(index);
+  DCHECK(!value->IsTheHole(table->GetIsolate()));
+  return value;
+}
+
+}  // namespace internal
+}  // namespace v8
+
+#include "src/objects/object-macros-undef.h"
+
+#endif  // V8_OBJECTS_JS_COLLECTION_INL_H_