/*
-** LCLint - annotation-assisted static program checker
-** Copyright (C) 1994-2001 University of Virginia,
+** 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
** the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
** MA 02111-1307, USA.
**
-** For information on lclint: lclint-request@cs.virginia.edu
-** To report a bug: lclint-bug@cs.virginia.edu
-** For more information: http://lclint.cs.virginia.edu
+** 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 "lclintMacros.nf"
+# include "splintMacros.nf"
# include "basic.h"
-static /*@only@*/ /*@notnull@*/ /*@special@*/ functionClause /*@i32 need special? @*/
+static /*@only@*/ /*@notnull@*/ /*@special@*/ functionClause
functionClause_alloc (functionClauseKind kind) /*@defines result->kind@*/
{
functionClause res = (functionClause) dmalloc (sizeof (*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_STATE);
- res->val.state = 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;
}
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:
- BADBRANCH;
+ return cstring_makeLiteral ("<dead clause>");
}
- BADBRANCH;
+ BADBRANCHRET (cstring_undefined);
}
extern bool functionClause_matchKind (functionClause p, functionClauseKind kind) /*@*/
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));
{
if (node != NULL)
{
+ DPRINTF (("free: %s", functionClause_unparse (node)));
+
switch (node->kind)
{
case FCK_GLOBALS:
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;