/*
+** LCLint - annotation-assisted static program checker
+** Copyright (C) 1994-2000 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 lclint: lclint-request@cs.virginia.edu
+** To report a bug: lclint-bug@cs.virginia.edu
+** For more information: http://lclint.cs.virginia.edu
+*/
+/*
** constraintList.c
+**
+** based on list_template.c
+**
+** where T has T_equal (or change this) and T_unparse
*/
-# include <ctype.h> /* for isdigit */
# include "lclintMacros.nf"
-# include "basic.h"
-# include "cgrammar.h"
-# include "cgrammar_tokens.h"
-
-# include "exprChecks.h"
-# include "aliasChecks.h"
-# include "exprNodeSList.h"
-# include "exprData.i"
+# include "llbasic.h"
+constraintList constraintList_new ()
+{
+ constraintList s = (constraintList) dmalloc (sizeof (*s));
-/*@notnull@*/ constraintList constraintList_new () {
-constraintList ret;
+ s->nelements = 0;
+ s->nspace = constraintListBASESIZE;
+ s->elements = (constraint *)
+ dmalloc (sizeof (*s->elements) * constraintListBASESIZE);
-ret = dmalloc ( sizeof (constraintList_) );
-llassert ( ret != NULL);
-ret->numconstraints = 0;
-return ret;
+ return (s);
}
-cstring parse_restriction (arithType at)
-{
- switch (at)
- {
- case LT: return "<";
- case LTE: return "<=";
- case GT: return ">";
- case GTE: return ">=";
- case EQ: return "=";
- case NONNEGATIVE: return " >= 0";
- case POSITIVE: return " > 0";
- }
-}
-cstring constraint_parseKind (constraintType kind)
+static void
+constraintList_grow (constraintList s)
{
- switch (kind)
+ int i;
+ constraint *newelements;
+
+ s->nspace += constraintListBASESIZE;
+ newelements = (constraint *) dmalloc (sizeof (*newelements)
+ * (s->nelements + s->nspace));
+
+ for (i = 0; i < s->nelements; i++)
{
- case BUFFSIZE: return "BufferSize";
- case STRINGLEN: return "StringLength";
- case VALUE: return "value";
+ newelements[i] = s->elements[i];
}
+
+ sfree (s->elements);
+ s->elements = newelements;
}
-void constraint_print (constraint c)
+void constraintList_exprNodemerge()
{
-#if 0
- printf ("Constraint: %s of %s %s %s\n", constraint_parseKind (c.kind),
- exprNode_unparse(c.expr1), parse_restriction(c.restriction), exprNode_unparse(c.expr2) );
- #endif
}
-void constraintList_print (constraintList cl)
+constraintList
+constraintList_add (constraintList s, constraint el)
{
-#if o
- int i;
- if (constraintList_isUndefined (cl) )
- {
- printf("Constraint List undefined\n");
- return;
- }
- for (i = 0; i < cl->numconstraints; i++)
- {
- constraint_print (cl->constraints[i]);
- }
-#endif
-}
-
+ if (s->nspace <= 0)
+ constraintList_grow (s);
-constraint constraint_create (exprNode e1, exprNode e2, arithType restriction, constraintType kind)
-{
- constraint ret;
- ret.expr1 = e1;
- ret.expr2 = e2;
- ret.restriction = restriction;
- ret.kind = kind;
- return ret;
+ s->nspace--;
+ s->elements[s->nelements] = el;
+ s->nelements++;
+ return s;
}
-constraintList constraintList_get (exprNode e1 )
+constraintList constraintList_addList (constraintList s, constraintList new)
{
- return e1->constraints;
+ constraintList_elements(new, elem)
+ s = constraintList_add (s, elem);
+ end_constraintList_elements
+ return s;
}
-constraintList constraintList_exprNodemerge (exprNode e1, exprNode e2)
+cstring
+constraintList_print (constraintList s)
{
- constraintList ret;
- if ( (e1 != NULL) && (e2 != NULL) )
+ int i;
+ cstring st = cstring_undefined;
+ bool first = TRUE;
+
+ if (s->nelements == 0)
+ st = cstring_makeLiteral("<List Empty>");
+
+ for (i = 0; i < s->nelements; i++)
{
- ret = constraintList_merge (e1->constraints, e2->constraints);
- }
- else if ( (e1 == NULL) && (e2 == NULL) )
- ret = constraintList_merge ( (constraintList)NULL, (constraintList)NULL );
- else if (e1 == NULL)
- ret = constraintList_merge ( (constraintList)NULL, e2->constraints);
- else
- ret = constraintList_merge (e1->constraints, (constraintList)NULL );
- return ret;
-}
+ cstring type = cstring_undefined;
+ constraint current = s->elements[i];
+ if (current != NULL)
+ {
+ cstring temp1 = constraint_print(current);
+ type = message ("%q %q\n", type, temp1 );
+ }
-constraintList constraintList_merge (constraintList cl1, constraintList cl2)
-{
- constraintList ret;
- int i;
- ret = constraintList_undefined;
- if (constraintList_isDefined (cl1) )
- {
- for (i = 0; i < cl1->numconstraints; i++)
+ if (first)
{
- ret = constraintList_add (ret, cl1->constraints[i]);
+ st = type;
+ first = FALSE;
}
- }
- if (constraintList_isDefined (cl2) )
- {
- for (i = 0; i < cl2->numconstraints; i++)
+ else
{
- ret = constraintList_add (ret, cl2->constraints[i]);
+ st = message ("%q, %q", st, type);
}
}
- return ret;
-
-
+ return st;
}
-constraintList constraintList_add (constraintList constraints, constraint newconstr)
-{
- constraintList ret;
-
- if ( constraintList_isUndefined(constraints) )
- {
- ret = constraintList_new ();
- }
- else
- {
- ret = constraints;
- }
- llassert (constraintList_isDefined (ret) );
- llassert (ret->numconstraints < max_constraints);
- ret->constraints[ret->numconstraints] = newconstr;
- ret->numconstraints++;
- return ret;
-}
-cstring exprNode_generateConstraints (exprNode e)
+cstring
+constraintList_printDetailed (constraintList s)
{
- static int temp = 0;
- cstring ret;
- exprData data;
+ int i;
+ cstring st = cstring_undefined;
+ bool first = TRUE;
- if (exprNode_isError (e))
+ if (s->nelements == 0)
+ st = cstring_makeLiteral("<List Empty>");
+
+ for (i = 0; i < s->nelements; i++)
{
- static /*@only@*/ cstring error = cstring_undefined;
+ cstring type = cstring_undefined;
+ constraint current = s->elements[i];
- if (!cstring_isDefined (error))
+ if (current != NULL)
{
- error = cstring_makeLiteral ("<error>");
+ cstring temp1 = constraint_printDetailed (current);
+ type = message ("%s %s\n", type, temp1 );
}
-
- return error;
- }
-
- data = e->edata;
- switch (e->kind)
- {
- case XPR_PARENS:
- ret = message ("(%s)", exprNode_generateConstraints (exprData_getUopNode (e->edata)));
- break;
- case XPR_ASSIGN:
- ret = message ("%s %s %s",
- exprNode_generateConstraints (exprData_getOpA (data)),
- lltok_unparse (exprData_getOpTok (data)),
- exprNode_generateConstraints (exprData_getOpB (data)));
- e->constraints = constraintList_exprNodemerge (exprData_getOpA (data), exprData_getOpB (data) );
- break;
- case XPR_CALL:
- ret = message ("%s(%q)",
- exprNode_generateConstraints (exprData_getFcn (data)),
- exprNodeList_unparse (exprData_getArgs (data)));
- break;
- case XPR_INITBLOCK:
- ret = message ("{ %q }", exprNodeList_unparse (exprData_getArgs (data)));
- break;
- case XPR_EMPTY:
- ret = cstring_undefined;
- break;
- case XPR_LABEL:
- ret = message ("%s:", exprData_getId (data));
- break;
- case XPR_CONST:
- case XPR_VAR:
- ret = cstring_copy (exprData_getId (data));
- break;
- case XPR_FETCH:
- ret = message ("%s[%s]", exprNode_generateConstraints (exprData_getPairA (data)),
- exprNode_generateConstraints (exprData_getPairB (data)));
- // printf("Making constraint that size %s > %s\n",exprNode_generateConstraints (exprData_getPairA (data)),
- // exprNode_generateConstraints (exprData_getPairB (data)));
- e->constraints = constraintList_add (e->constraints, constraint_create (exprData_getPairA (data),exprData_getPairB (data) , GT, BUFFSIZE ) );
- e->constraints = constraintList_add (e->constraints, constraint_create (exprData_getPairB (data), exprNode_undefined, NONNEGATIVE, VALUE) );
- /* crude test to see if this is an lvalue */
- if ( sRefSet_isEmpty(e->sets) )
- {
- /* if its not an lvalue we assume it's an rvalue*/
- /* of course if its am lvalue we assume its not an rvalue
- should put in a more accurate test sometime...*/
-
- // printf("Making constraint that length %s > %s\n",exprNode_generateConstraints (exprData_getPairA (data)),
- // exprNode_generateConstraints (exprData_getPairB (data)));
- e->constraints = constraintList_add (e->constraints, constraint_create (exprData_getPairA (data),exprData_getPairB (data) , GT, STRINGLEN ) );
- }
- break;
- case XPR_BODY:
- ret = message ("<body>");
- break;
- case XPR_OP:
- ret = message ("%s %s %s",
- exprNode_generateConstraints (exprData_getOpA (data)),
- lltok_unparse (exprData_getOpTok (data)),
- exprNode_generateConstraints (exprData_getOpB (data)));
- break;
-
- case XPR_PREOP:
- ret = message ("%s%s",
- lltok_unparse (exprData_getUopTok (data)),
- exprNode_generateConstraints (exprData_getUopNode (data)));
- /*handle * pointer access */
- if (lltok_isMult( exprData_getUopTok (data) ) )
+ if (first)
{
- e->constraints = constraintList_add (e->constraints, constraint_create (exprData_getUopNode (data), exprNode_undefined, POSITIVE, BUFFSIZE ) );
- /* crude test to see if this is an lvalue */
- if ( sRefSet_isEmpty(e->sets) )
- {
- /* if its not an lvalue we assume it's an rvalue*/
- /* of course if its am lvalue we assume its not an rvalue
- should put in a more accurate test sometime...*/
- e->constraints = constraintList_add (e->constraints, constraint_create (exprData_getUopNode (data), exprNode_undefined, POSITIVE, STRINGLEN ) );
- }
+ st = type;
+ first = FALSE;
}
- break;
-
- case XPR_POSTOP:
- ret = message ("%s%s",
- exprNode_generateConstraints (exprData_getUopNode (data)),
- lltok_unparse (exprData_getUopTok (data)));
- break;
-
- case XPR_OFFSETOF:
- ret = message ("offsetof(%s,%q)",
- ctype_unparse (qtype_getType (exprData_getOffsetType (data))),
- cstringList_unparseSep (exprData_getOffsetName (data), cstring_makeLiteralTemp (".")));
- break;
-
- case XPR_SIZEOFT:
- ret = message ("sizeof(%s)", ctype_unparse (qtype_getType (exprData_getType (data))));
- break;
-
- case XPR_SIZEOF:
- ret = message ("sizeof(%s)", exprNode_generateConstraints (exprData_getSingle (data)));
- break;
-
- case XPR_ALIGNOFT:
- ret = message ("alignof(%s)", ctype_unparse (qtype_getType (exprData_getType (data))));
- break;
-
- case XPR_ALIGNOF:
- ret = message ("alignof(%s)", exprNode_generateConstraints (exprData_getSingle (data)));
- break;
-
- case XPR_VAARG:
- ret = message ("va_arg(%s, %q)",
- exprNode_generateConstraints (exprData_getCastNode (data)),
- qtype_unparse (exprData_getCastType (data)));
- break;
-
- case XPR_ITERCALL:
- ret = message ("%q(%q)",
- uentry_getName (exprData_getIterCallIter (data)),
- exprNodeList_unparse (exprData_getIterCallArgs (data)));
- break;
- case XPR_ITER:
- ret = message ("%q(%q) %s %q",
- uentry_getName (exprData_getIterSname (data)),
- exprNodeList_unparse (exprData_getIterAlist (data)),
- exprNode_generateConstraints (exprData_getIterBody (data)),
- uentry_getName (exprData_getIterEname (data)));
- break;
- case XPR_CAST:
- ret = message ("(%q)%s",
- qtype_unparse (exprData_getCastType (data)),
- exprNode_generateConstraints (exprData_getCastNode (data)));
- break;
-
- case XPR_FOR:
- ret = message ("%s %s",
- exprNode_generateConstraints (exprData_getPairA (data)),
- exprNode_generateConstraints (exprData_getPairB (data)));
- break;
-
- case XPR_FORPRED:
- ret = message ("for (%s; %s; %s)",
- exprNode_generateConstraints (exprData_getTripleInit (data)),
- exprNode_generateConstraints (exprData_getTripleTest (data)),
- exprNode_generateConstraints (exprData_getTripleInc (data)));
- break;
-
- case XPR_GOTO:
- ret = message ("goto %s", exprData_getLiteral (data));
- break;
-
- case XPR_CONTINUE:
- ret = cstring_makeLiteral ("continue");
- break;
-
- case XPR_BREAK:
- ret = cstring_makeLiteral ("break");
- break;
-
- case XPR_RETURN:
- ret = message ("return %s", exprNode_generateConstraints (exprData_getSingle (data)));
- break;
-
- case XPR_NULLRETURN:
- ret = cstring_makeLiteral ("return");
- break;
-
- case XPR_COMMA:
- ret = message ("%s, %s",
- exprNode_generateConstraints (exprData_getPairA (data)),
- exprNode_generateConstraints (exprData_getPairB (data)));
- break;
-
- case XPR_COND:
- ret = message ("%s ? %s : %s",
- exprNode_generateConstraints (exprData_getTriplePred (data)),
- exprNode_generateConstraints (exprData_getTripleTrue (data)),
- exprNode_generateConstraints (exprData_getTripleFalse (data)));
- break;
- case XPR_IF:
- ret = message ("if (%s) %s",
- exprNode_generateConstraints (exprData_getPairA (data)),
- exprNode_generateConstraints (exprData_getPairB (data)));
- break;
-
- case XPR_IFELSE:
- ret = message ("if (%s) %s else %s",
- exprNode_generateConstraints (exprData_getTriplePred (data)),
- exprNode_generateConstraints (exprData_getTripleTrue (data)),
- exprNode_generateConstraints (exprData_getTripleFalse (data)));
- break;
- case XPR_WHILE:
- ret = message ("while (%s) %s",
- exprNode_generateConstraints (exprData_getPairA (data)),
- exprNode_generateConstraints (exprData_getPairB (data)));
- break;
-
- case XPR_WHILEPRED:
- ret = cstring_copy (exprNode_generateConstraints (exprData_getSingle (data)));
- break;
-
- case XPR_TOK:
- ret = cstring_copy (lltok_unparse (exprData_getTok (data)));
- break;
-
- case XPR_DOWHILE:
- ret = message ("do { %s } while (%s)",
- exprNode_generateConstraints (exprData_getPairB (data)),
- exprNode_generateConstraints (exprData_getPairA (data)));
- break;
-
- case XPR_BLOCK:
- ret = message ("{ %s }", exprNode_generateConstraints (exprData_getSingle (data)));
- e->constraints = (exprData_getSingle (data))->constraints;
- break;
-
- case XPR_STMT:
- ret = cstring_copy (exprNode_generateConstraints (exprData_getSingle (data)));
- e->constraints = (exprData_getSingle (data))->constraints;
- break;
-
- case XPR_STMTLIST:
- ret = message ("%s;%d %s",
- exprNode_generateConstraints (exprData_getPairA (data)), temp++,
- exprNode_generateConstraints (exprData_getPairB (data)));
- e->constraints = constraintList_exprNodemerge (exprData_getPairA (data), exprData_getPairB (data) );
- break;
-
- case XPR_FTDEFAULT:
- case XPR_DEFAULT:
- ret = cstring_makeLiteral ("default:");
- break;
+ else
+ {
+ st = message ("%s %s", st, type);
+ }
+ }
+ return st;
+}
- case XPR_SWITCH:
- ret = message ("switch (%s) %s",
- exprNode_generateConstraints (exprData_getPairA (data)),
- exprNode_generateConstraints (exprData_getPairB (data)));
- break;
+void
+constraintList_free (constraintList s)
+{
+ int i;
+ for (i = 0; i < s->nelements; i++)
+ {
+ // constraint_free (s->elements[i]);
+ }
- case XPR_FTCASE:
- case XPR_CASE:
- ret = message ("case %s:",
- exprNode_generateConstraints (exprData_getSingle (data)));
- break;
-
- case XPR_INIT:
- ret = message ("%s = %s",
- idDecl_getName (exprData_getInitId (data)),
- exprNode_generateConstraints (exprData_getInitNode (data)));
- break;
-
- case XPR_FACCESS:
- ret = message ("%s.%s",
- exprNode_generateConstraints (exprData_getFieldNode (data)),
- exprData_getFieldName (data));
- break;
-
- case XPR_ARROW:
- ret = message ("%s->%s",
- exprNode_generateConstraints (exprData_getFieldNode (data)),
- exprData_getFieldName (data));
- break;
+ sfree (s->elements);
+ sfree (s);
+}
- case XPR_STRINGLITERAL:
- ret = cstring_copy (exprData_getLiteral (data));
- break;
+constraintList
+constraintList_copy (constraintList s)
+{
+ constraintList ret = constraintList_new ();
- case XPR_NUMLIT:
- ret = cstring_copy (exprData_getLiteral (data));
- break;
+ constraintList_elements (s, el)
+ {
+ ret = constraintList_add (ret, constraint_copy (el));
+ } end_constraintList_elements;
- case XPR_NODE:
- ret = cstring_makeLiteral ("<node>");
- break;
- }
+ return ret;
+}
- return ret;
+constraintList constraintList_preserveOrig (constraintList c)
+{
+ constraintList_elements (c, el);
+ {
+ el = constraint_preserveOrig (el);
+ }
+ end_constraintList_elements;
+ return c;
}
andersk / splint.git / blobdiff