1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/builtin/Array-inl.h b/js/src/builtin/Array-inl.h
new file mode 100644
index 0000000000..b3210402ab
--- /dev/null
+++ b/js/src/builtin/Array-inl.h
@@ -0,0 +1,40 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef builtin_Array_inl_h
+#define builtin_Array_inl_h
+
+#include "builtin/Array.h"
+
+#include "vm/JSObject.h"
+
+#include "vm/ArgumentsObject-inl.h"
+#include "vm/ObjectOperations-inl.h"
+
+namespace js {
+
+inline bool GetElement(JSContext* cx, HandleObject obj, uint32_t index,
+                       MutableHandleValue vp) {
+  if (obj->is<NativeObject>() &&
+      index < obj->as<NativeObject>().getDenseInitializedLength()) {
+    vp.set(obj->as<NativeObject>().getDenseElement(index));
+    if (!vp.isMagic(JS_ELEMENTS_HOLE)) {
+      return true;
+    }
+  }
+
+  if (obj->is<ArgumentsObject>()) {
+    if (obj->as<ArgumentsObject>().maybeGetElement(index, vp)) {
+      return true;
+    }
+  }
+
+  return GetElement(cx, obj, obj, index, vp);
+}
+
+}  // namespace js
+
+#endif  // builtin_Array_inl_h