runtime/Protect.h

   1 /*
   2  *  Copyright (C) 2004, 2008, 2009 Apple Inc. All rights reserved.
   3  *
   4  *  This library is free software; you can redistribute it and/or
   5  *  modify it under the terms of the GNU Library General Public
   6  *  License as published by the Free Software Foundation; either
   7  *  version 2 of the License, or (at your option) any later version.
   8  *
   9  *  This library is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  *  Library General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU Library General Public License
  15  *  along with this library; see the file COPYING.LIB.  If not, write to
  16  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  *  Boston, MA 02110-1301, USA.
  18  *
  19  */
  20
  21
  22 #ifndef Protect_h
  23 #define Protect_h
  24
  25 #include "Heap.h"
  26 #include "JSValue.h"
  27
  28 namespace JSC {
  29
  30     inline void gcProtect(JSCell* val)
  31     {
  32         Heap::heap(val)->protect(val);
  33     }
  34
  35     inline void gcUnprotect(JSCell* val)
  36     {
  37         Heap::heap(val)->unprotect(val);
  38     }
  39
  40     inline void gcProtectNullTolerant(JSCell* val)
  41     {
  42         if (val)
  43             gcProtect(val);
  44     }
  45
  46     inline void gcUnprotectNullTolerant(JSCell* val)
  47     {
  48         if (val)
  49             gcUnprotect(val);
  50     }
  51
  52     inline void gcProtect(JSValue value)
  53     {
  54         if (value && value.isCell())
  55             gcProtect(value.asCell());
  56     }
  57
  58     inline void gcUnprotect(JSValue value)
  59     {
  60         if (value && value.isCell())
  61             gcUnprotect(value.asCell());
  62     }
  63
  64 } // namespace JSC
  65
  66 #endif // Protect_h