js/src/vm/WrapperObject.h

   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 */