1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/proxy/DOMProxy.cpp b/js/src/proxy/DOMProxy.cpp
new file mode 100644
index 0000000000..eab5390158
--- /dev/null
+++ b/js/src/proxy/DOMProxy.cpp
@@ -0,0 +1,41 @@
+/* -*- 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/. */
+
+/* DOM proxy-related functionality, including expando support. */
+
+#include "js/friend/DOMProxy.h"  // JS::DOMProxyShadowsCheck
+#include "proxy/DOMProxy.h"
+
+#include "js/Proxy.h"  // js::GetProxyHandler, js::IsProxy
+
+using JS::DOMProxyShadowsCheck;
+
+static const void* gDOMProxyHandlerFamily = nullptr;
+static DOMProxyShadowsCheck gDOMProxyShadowsCheck = nullptr;
+static const void* gDOMRemoteProxyHandlerFamily = nullptr;
+
+void JS::SetDOMProxyInformation(const void* domProxyHandlerFamily,
+                                DOMProxyShadowsCheck domProxyShadowsCheck,
+                                const void* domRemoteProxyHandlerFamily) {
+  gDOMProxyHandlerFamily = domProxyHandlerFamily;
+  gDOMProxyShadowsCheck = domProxyShadowsCheck;
+  gDOMRemoteProxyHandlerFamily = domRemoteProxyHandlerFamily;
+}
+
+const void* js::GetDOMProxyHandlerFamily() { return gDOMProxyHandlerFamily; }
+
+DOMProxyShadowsCheck js::GetDOMProxyShadowsCheck() {
+  return gDOMProxyShadowsCheck;
+}
+
+const void* js::GetDOMRemoteProxyHandlerFamily() {
+  return gDOMRemoteProxyHandlerFamily;
+}
+
+bool js::IsDOMRemoteProxyObject(JSObject* object) {
+  return js::IsProxy(object) && js::GetProxyHandler(object)->family() ==
+                                    js::GetDOMRemoteProxyHandlerFamily();
+}