src/modifiesClause.c

   1 /*
   2 ** Splint - annotation-assisted static program checker
   3 ** Copyright (C) 1994-2003 University of Virginia,
   4 **         Massachusetts Institute of Technology
   5 **
   6 ** This program is free software; you can redistribute it and/or modify it
   7 ** under the terms of the GNU General Public License as published by the
   8 ** Free Software Foundation; either version 2 of the License, or (at your
   9 ** option) any later version.
  10 **
  11 ** This program is distributed in the hope that it will be useful, but
  12 ** WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 ** General Public License for more details.
  15 **
  16 ** The GNU General Public License is available from http://www.gnu.org/ or
  17 ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18 ** MA 02111-1307, USA.
  19 **
  20 ** For information on splint: info@splint.org
  21 ** To report a bug: splint-bug@splint.org
  22 ** For more information: http://www.splint.org
  23 */
  24 /*
  25 ** modifiesClause.c
  26 */
  27
  28 # include "splintMacros.nf"
  29 # include "basic.h"
  30
  31 extern modifiesClause
  32 modifiesClause_createNoMods (lltok tok)
  33 {
  34   modifiesClause res = (modifiesClause) dmalloc (sizeof (*res));
  35
  36   res->isnomods = TRUE;
  37   res->srs = sRefSet_undefined;
  38
  39   res->loc = fileloc_copy (lltok_getLoc (tok));
  40   lltok_free (tok);
  41
  42   return res;
  43 }
  44
  45 extern modifiesClause
  46 modifiesClause_create (lltok tok, sRefSet rfs)
  47 {
  48   modifiesClause res = (modifiesClause) dmalloc (sizeof (*res));
  49
  50   res->isnomods = FALSE;
  51   res->srs = rfs;
  52
  53   res->loc = fileloc_copy (lltok_getLoc (tok));
  54   lltok_free (tok);
  55
  56   return res;
  57 }
  58
  59 extern void modifiesClause_free (modifiesClause mclause)
  60 {
  61   sRefSet_free (mclause->srs);
  62   fileloc_free (mclause->loc);
  63   sfree (mclause);
  64 }
  65
  66 extern cstring modifiesClause_unparse (modifiesClause node)
  67 {
  68   if (node->isnomods)
  69     {
  70       return cstring_makeLiteral ("modifies nothing");
  71     }
  72   else
  73     {
  74       return message ("modifies %q", sRefSet_unparse (node->srs));
  75     }
  76 }
  77
  78 # ifdef DEADCODE
  79 extern sRefSet modifiesClause_getMods (modifiesClause m)
  80 {
  81   llassert (!m->isnomods);
  82   return m->srs;
  83 }
  84 # endif /* DEADCODE */
  85
  86 extern sRefSet modifiesClause_takeMods (modifiesClause m)
  87 {
  88   sRefSet mods;
  89   llassert (!m->isnomods);
  90   mods = m->srs;
  91   m->srs = sRefSet_undefined;
  92   return mods;
  93 }