1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/vm/TaggedProto.cpp b/js/src/vm/TaggedProto.cpp
new file mode 100644
index 0000000000..558d569a00
--- /dev/null
+++ b/js/src/vm/TaggedProto.cpp
@@ -0,0 +1,34 @@
+/* -*- 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/. */
+
+#include "vm/TaggedProto.h"
+
+#include "gc/Barrier.h"
+#include "vm/JSObject.h"
+
+namespace js {
+
+/* static */ void InternalBarrierMethods<TaggedProto>::preBarrier(
+    TaggedProto& proto) {
+  InternalBarrierMethods<JSObject*>::preBarrier(proto.toObjectOrNull());
+}
+
+/* static */ void InternalBarrierMethods<TaggedProto>::postBarrier(
+    TaggedProto* vp, TaggedProto prev, TaggedProto next) {
+  JSObject* prevObj = prev.isObject() ? prev.toObject() : nullptr;
+  JSObject* nextObj = next.isObject() ? next.toObject() : nullptr;
+  InternalBarrierMethods<JSObject*>::postBarrier(
+      reinterpret_cast<JSObject**>(vp), prevObj, nextObj);
+}
+
+/* static */ void InternalBarrierMethods<TaggedProto>::readBarrier(
+    const TaggedProto& proto) {
+  InternalBarrierMethods<JSObject*>::readBarrier(proto.toObjectOrNull());
+}
+
+void TaggedProto::trace(JSTracer* trc) { TraceRoot(trc, this, "TaggedProto"); }
+
+}  // namespace js