1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2  * vim: set ts=8 sts=2 et sw=2 tw=80:
3  * This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #ifndef vm_WrapperObject_h
8 #define vm_WrapperObject_h
9 
10 #include "js/Wrapper.h"
11 #include "vm/JSObject.h"
12 #include "vm/ProxyObject.h"
13 
14 namespace js {
15 
16 // Proxy family for wrappers.
17 // This variable exists solely to provide a unique address for use as an
18 // identifier.
19 extern const char sWrapperFamily;
20 
21 class WrapperObject : public ProxyObject {};
22 
23 class CrossCompartmentWrapperObject : public WrapperObject {
24  public:
25   static const unsigned GrayLinkReservedSlot = 1;
26 };
27 
28 }  // namespace js
29 
30 template <>
31 inline bool JSObject::is<js::WrapperObject>() const {
32   return js::IsWrapper(this);
33 }
34 
35 template <>
36 inline bool JSObject::is<js::CrossCompartmentWrapperObject>() const {
37   return js::IsCrossCompartmentWrapper(this);
38 }
39 
40 #endif /* vm_WrapperObject_h */
41