src/mtTransferAction.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 ** mtTransferAction.c
  26 */
  27
  28 # include "splintMacros.nf"
  29 # include "basic.h"
  30
  31 extern mtTransferAction mtTransferAction_createValue (mttok value)
  32 {
  33   mtTransferAction res = (mtTransferAction) dmalloc (sizeof (*res));
  34
  35   res->kind = MTAK_VALUE;
  36   llassert (mttok_isIdentifier (value));
  37   res->value = mttok_getText (value);
  38   res->message = cstring_undefined;
  39   res->loc = mttok_stealLoc (value);
  40   mttok_free (value);
  41   return res;
  42 }
  43
  44 extern mtTransferAction mtTransferAction_createError (mttok tok)
  45 {
  46   mtTransferAction res = (mtTransferAction) dmalloc (sizeof (*res));
  47
  48   res->kind = MTAK_ERROR;
  49   res->value = cstring_undefined;
  50   res->message = cstring_undefined;
  51   res->loc = mttok_stealLoc (tok);
  52   mttok_free (tok);
  53   return res;
  54 }
  55
  56 extern mtTransferAction mtTransferAction_createErrorMessage (mttok message)
  57 {
  58   mtTransferAction res = (mtTransferAction) dmalloc (sizeof (*res));
  59
  60   res->kind = MTAK_ERROR;
  61   res->message = mttok_getText (message);
  62   res->value = cstring_undefined;
  63   res->loc = mttok_stealLoc (message);
  64   mttok_free (message);
  65   return res;
  66 }
  67
  68 extern cstring mtTransferAction_getMessage (mtTransferAction node)
  69 {
  70   llassert (node->kind == MTAK_ERROR);
  71   return node->message;
  72 }
  73
  74 extern cstring mtTransferAction_unparse (mtTransferAction node)
  75 {
  76   switch (node->kind) {
  77   case MTAK_VALUE: return cstring_copy (node->value);
  78   case MTAK_ERROR:
  79     if (cstring_isDefined (node->message)) {
  80       return message ("error \"%s\"", node->message);
  81     } else {
  82       return cstring_makeLiteral ("<error>");
  83     }
  84   BADDEFAULT;
  85   }
  86
  87   BADBRANCH;
  88 }
  89
  90 extern void mtTransferAction_free (/*@only@*/ mtTransferAction node)
  91 {
  92   cstring_free (node->value);
  93   cstring_free (node->message);
  94   fileloc_free (node->loc);
  95   sfree (node);
  96 }