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      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
     67