1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261
|
/*
** Splint - annotation-assisted static program checker
** Copyright (C) 1994-2003 University of Virginia,
** Massachusetts Institute of Technology
**
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
** Free Software Foundation; either version 2 of the License, or (at your
** option) any later version.
**
** This program is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** General Public License for more details.
**
** The GNU General Public License is available from http://www.gnu.org/ or
** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
** MA 02111-1307, USA.
**
** For information on splint: info@splint.org
** To report a bug: splint-bug@splint.org
** For more information: http://www.splint.org
*/
/*
** functionClause.c
*/
# include "splintMacros.nf"
# include "basic.h"
static /*@only@*/ /*@notnull@*/ /*@special@*/ functionClause
functionClause_alloc (functionClauseKind kind) /*@defines result->kind@*/
{
functionClause res = (functionClause) dmalloc (sizeof (*res));
res->kind = kind;
return res;
}
extern functionClause functionClause_createGlobals (globalsClause node) /*@*/
{
functionClause res = functionClause_alloc (FCK_GLOBALS);
res->val.globals = node;
return res;
}
extern functionClause functionClause_createModifies (modifiesClause node) /*@*/
{
functionClause res = functionClause_alloc (FCK_MODIFIES);
res->val.modifies = node;
return res;
}
extern functionClause functionClause_createState (stateClause node) /*@*/
{
if (stateClause_hasEmptyReferences (node) &&
(!stateClause_isMetaState (node) ) )
{
DPRINTF((message("functionClause_createState:: Returning functionClause_undefined" ) ));
stateClause_free (node);
return functionClause_undefined;
}
else
{
functionClause res = functionClause_alloc (FCK_STATE);
res->val.state = node;
return res;
}
}
extern functionClause functionClause_createEnsures (functionConstraint node) /*@*/
{
functionClause res = functionClause_alloc (FCK_ENSURES);
res->val.constraint = node;
return res;
}
extern functionClause functionClause_createRequires (functionConstraint node) /*@*/
{
functionClause res = functionClause_alloc (FCK_REQUIRES);
res->val.constraint = node;
return res;
}
extern functionClause functionClause_createWarn (warnClause node) /*@*/
{
functionClause res = functionClause_alloc (FCK_WARN);
res->val.warn = node;
return res;
}
/*@only@*/ cstring functionClause_unparse (functionClause p)
{
if (functionClause_isUndefined (p))
{
return cstring_undefined;
}
switch (p->kind)
{
case FCK_GLOBALS:
return globalsClause_unparse (p->val.globals);
case FCK_MODIFIES:
return modifiesClause_unparse (p->val.modifies);
case FCK_WARN:
return warnClause_unparse (p->val.warn);
case FCK_STATE:
return stateClause_unparse (p->val.state);
case FCK_ENSURES:
return message ("ensures %q", functionConstraint_unparse (p->val.constraint));
case FCK_REQUIRES:
return message ("requires %q", functionConstraint_unparse (p->val.constraint));
case FCK_DEAD:
return cstring_makeLiteral ("<dead clause>");
}
BADBRANCHRET (cstring_undefined);
}
extern bool functionClause_matchKind (functionClause p, functionClauseKind kind) /*@*/
{
if (functionClause_isDefined (p))
{
return (p->kind == kind);
}
else
{
return FALSE;
}
}
extern stateClause functionClause_getState (functionClause node)
{
llassert (functionClause_isDefined (node));
llassert (node->kind == FCK_STATE);
return node->val.state;
}
extern stateClause functionClause_takeState (functionClause fc)
{
stateClause res;
llassert (functionClause_isDefined (fc));
llassert (fc->kind == FCK_STATE);
res = fc->val.state;
fc->val.state = NULL;
fc->kind = FCK_DEAD;
return res;
}
extern functionConstraint functionClause_getEnsures (functionClause node)
{
llassert (functionClause_isDefined (node));
llassert (node->kind == FCK_ENSURES);
return node->val.constraint;
}
extern functionConstraint functionClause_takeEnsures (functionClause fc)
{
functionConstraint res;
llassert (functionClause_isDefined (fc));
llassert (fc->kind == FCK_ENSURES);
res = fc->val.constraint;
fc->val.constraint = NULL;
fc->kind = FCK_DEAD;
return res;
}
extern functionConstraint functionClause_getRequires (functionClause node)
{
llassert (functionClause_isDefined (node));
llassert (node->kind == FCK_REQUIRES);
return node->val.constraint;
}
extern functionConstraint functionClause_takeRequires (functionClause fc)
{
functionConstraint res;
llassert (functionClause_isDefined (fc));
llassert (fc->kind == FCK_REQUIRES);
res = fc->val.constraint;
fc->val.constraint = NULL;
fc->kind = FCK_DEAD;
return res;
}
extern warnClause functionClause_getWarn (functionClause node)
{
llassert (functionClause_isDefined (node));
llassert (node->kind == FCK_WARN);
return node->val.warn;
}
extern warnClause functionClause_takeWarn (functionClause fc)
{
warnClause res;
llassert (functionClause_isDefined (fc));
llassert (fc->kind == FCK_WARN);
res = fc->val.warn;
fc->val.warn = warnClause_undefined;
fc->kind = FCK_DEAD;
return res;
}
extern modifiesClause functionClause_getModifies (functionClause node)
{
llassert (functionClause_isDefined (node));
llassert (node->kind == FCK_MODIFIES);
return node->val.modifies;
}
extern globalsClause functionClause_getGlobals (functionClause node)
{
llassert (functionClause_isDefined (node));
llassert (node->kind == FCK_GLOBALS);
return node->val.globals;
}
extern void functionClause_free (/*@only@*/ functionClause node)
{
if (node != NULL)
{
DPRINTF (("free: %s", functionClause_unparse (node)));
switch (node->kind)
{
case FCK_GLOBALS:
globalsClause_free (node->val.globals);
break;
case FCK_MODIFIES:
modifiesClause_free (node->val.modifies);
break;
case FCK_WARN:
warnClause_free (node->val.warn);
break;
case FCK_STATE:
stateClause_free (node->val.state);
break;
case FCK_ENSURES:
functionConstraint_free (node->val.constraint);
break;
case FCK_REQUIRES:
functionConstraint_free (node->val.constraint);
break;
case FCK_DEAD:
/* Nothing to release */
break;
}
sfree (node);
}
}
|