2 ** Splint - annotation-assisted static program checker
3 ** Copyright (C) 1994-2000 University of Virginia,
4 ** Massachusetts Institute of Technology
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.
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.
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.
20 ** For information on lclint: lclint-request@cs.virginia.edu
21 ** To report a bug: lclint-bug@cs.virginia.edu
22 ** For more information: http://www.splint.org
28 ** based on list_template.c
30 ** where T has T_equal (or change this) and T_unparse
33 # include "lclintMacros.nf"
37 /*@iter constraintList_elements_private_only (sef constraintList x, yield only constraint el); @*/
38 # define constraintList_elements_private_only(x, m_el) \
39 { if (constraintList_isDefined (x)) { int m_ind; constraint *m_elements = &((x)->elements[0]); \
40 for (m_ind = 0 ; m_ind < (x)->nelements; m_ind++) \
41 { constraint m_el = *(m_elements++);
43 # define end_constraintList_elements_private_only }}}
46 /*@iter constraintList_elements_private (sef constraintList x, yield constraint el); @*/
47 # define constraintList_elements_private(x, m_el) \
48 { if (constraintList_isDefined (x)) { int m_ind; constraint *m_elements = &((x)->elements[0]); \
49 for (m_ind = 0 ; m_ind < (x)->nelements; m_ind++) \
50 { constraint m_el = *(m_elements++);
52 # define end_constraintList_elements_private }}}
55 /*@only@*/ constraintList constraintList_makeNew ()
57 constraintList s = (constraintList) dmalloc (sizeof (*s));
60 s->nspace = constraintListBASESIZE;
61 s->elements = (constraint *)
62 dmalloc (sizeof (*s->elements) * constraintListBASESIZE);
68 constraintList_grow (constraintList s)
71 constraint *newelements;
73 llassert (constraintList_isDefined (s));
75 s->nspace += constraintListBASESIZE;
76 newelements = (constraint *) dmalloc (sizeof (*newelements)
77 * (s->nelements + s->nspace));
79 for (i = 0; i < s->nelements; i++)
81 newelements[i] = s->elements[i];
85 s->elements = newelements;
90 constraintList_add (/*@returned@*/ constraintList s, /*@only@*/ constraint el)
92 llassert (constraintList_isDefined (s));
96 if (constraintList_resolve (el, s) )
103 constraintList_grow (s);
106 s->elements[s->nelements] = el;
111 /* frees everything but actual constraints */
112 /* This function should only be used if you have
113 other references to unshared constraints
115 static void constraintList_freeShallow (/*@only@*/ constraintList c)
117 if (constraintList_isDefined(c) )
128 /*@only@*/ constraintList constraintList_addList (/*@only@*/ /*@returned@*/ constraintList s, /*@observer@*/ constraintList newList)
130 llassert(constraintList_isDefined(s) );
131 llassert(constraintList_isDefined(newList) );
133 if (newList == constraintList_undefined)
136 constraintList_elements (newList, elem)
138 s = constraintList_add (s, constraint_copy(elem) );
140 end_constraintList_elements;
145 constraintList constraintList_addListFree (/*@returned@*/ constraintList s, /*@only@*/ constraintList newList)
147 llassert(constraintList_isDefined(s) );
148 llassert(constraintList_isDefined(newList) );
150 if (constraintList_isUndefined(newList) )
153 constraintList_elements_private_only(newList, elem)
155 s = constraintList_add (s, elem);
157 end_constraintList_elements_private_only
159 constraintList_freeShallow(newList);
164 constraintList constraintList_removeSurpressed (/*@only@*/ constraintList s)
168 llassert(constraintList_isDefined(s) );
170 ret = constraintList_makeNew();
172 constraintList_elements_private_only(s, elem)
174 loc = constraint_getFileloc(elem);
176 if (fileloc_isUndefined(loc))
178 ret = constraintList_add (ret, elem);
181 else if (context_suppressFlagMsg(FLG_BOUNDSWRITE, loc) )
183 DPRINTF ((message ("constraintList_removeSurpressed getting rid of surpressed constraint %q",
184 constraint_print(elem))));
185 constraint_free(elem);
188 else if (!constraint_hasMaxSet(elem) && context_suppressFlagMsg(FLG_BOUNDSREAD, loc))
190 DPRINTF ((message("constraintList_removeSurpressed getting rid of surpressed constraint %q",
191 constraint_print(elem))));
192 constraint_free(elem);
196 ret = constraintList_add (ret, elem);
200 end_constraintList_elements_private_only;
202 constraintList_freeShallow(s);
208 extern /*@only@*/ cstring constraintList_unparse ( /*@observer@*/ constraintList s) /*@*/
210 return (constraintList_print(s));
214 static /*@only@*/ cstring
215 constraintList_printLocation (/*@temp@*/ constraintList s) /*@*/
218 cstring st = cstring_undefined;
221 if (!constraintList_isDefined (s))
223 return cstring_makeLiteral ("<undefined>");
226 if (s->nelements == 0)
228 st = cstring_makeLiteral("<List Empty>");
232 for (i = 0; i < s->nelements; i++)
234 cstring type = cstring_undefined;
235 constraint current = s->elements[i];
237 if (constraint_isDefined(current) )
240 temp1 = constraint_printLocation(current);
241 type = message ("%q %q\n", type, temp1 );
251 st = message ("%q, %q", st, type);
260 constraintList_print (/*@temp@*/ constraintList s) /*@*/
263 cstring st = cstring_undefined;
266 if (!constraintList_isDefined (s))
268 return cstring_makeLiteral ("<undefined>");
271 if (s->nelements == 0)
273 st = cstring_makeLiteral("<List Empty>");
277 for (i = 0; i < s->nelements; i++)
279 cstring type = cstring_undefined;
280 constraint current = s->elements[i];
282 if (constraint_isDefined(current) )
285 if ( context_getFlag (FLG_ORCONSTRAINT) )
286 temp1 = constraint_printOr(current);
288 temp1 = constraint_print(current);
289 type = message ("%q %q\n", type, temp1 );
299 st = message ("%q, %q", st, type);
306 void constraintList_printErrorPostConditions (constraintList s, fileloc loc)
309 constraintList_elements (s, elem)
311 if (constraint_isDefined(elem))
313 constraint_printErrorPostCondition (elem, loc);
316 end_constraintList_elements;
320 void constraintList_printError (constraintList s, fileloc loc)
323 constraintList_elements (s, elem)
325 if (constraint_isDefined(elem) )
327 if (constraint_isPost(elem) )
328 constraint_printErrorPostCondition (elem, loc);
330 constraint_printError (elem, loc);
333 end_constraintList_elements;
339 constraintList_printDetailed (constraintList s)
342 cstring st = cstring_undefined;
345 if (!constraintList_isDefined (s))
347 return cstring_makeLiteral ("<undefined>");
350 if (s->nelements == 0)
352 st = cstring_makeLiteral("<List Empty>");
356 for (i = 0; i < s->nelements; i++)
358 cstring type = cstring_undefined;
359 constraint current = s->elements[i];
361 if (constraint_isDefined(current ) )
363 cstring temp1 = constraint_printDetailed (current);
364 type = message ("%s %s\n", type, temp1 );
376 st = message ("%q %q", st, type);
382 /*{ x: constraint | (x in l1 -> resolve (x, l2) || (x in l2 -> resolve (x, l1)
386 constraintList_logicalOr (/*@observer@*/ constraintList l1, /*@observer@*/ constraintList l2)
390 DPRINTF ((message ("Logical or on %s and %s",
391 constraintList_print(l1),
392 constraintList_print(l2)) ) );
394 ret = constraintList_makeNew();
395 constraintList_elements (l1, el)
397 temp = constraint_substitute (el, l2);
399 if (constraintList_resolve (el, l2) || constraintList_resolve(temp,l2) )
400 { /*avoid redundant constraints*/
401 if (!constraintList_resolve (el, ret) )
404 temp2 = constraint_copy(el);
405 ret = constraintList_add (ret, temp2);
408 constraint_free(temp);
410 end_constraintList_elements;
412 constraintList_elements (l2, el)
414 temp = constraint_substitute (el, l1);
416 if (constraintList_resolve (el, l1) || constraintList_resolve(temp,l1) )
418 /*avoid redundant constraints*/
419 if (!constraintList_resolve (el, ret) )
422 temp2 = constraint_copy(el);
423 ret = constraintList_add (ret, temp2);
426 constraint_free(temp);
428 end_constraintList_elements;
435 constraintList_free (/*@only@*/ constraintList s)
439 llassert(constraintList_isDefined(s) );
442 for (i = 0; i < s->nelements; i++)
444 constraint_free (s->elements[i]);
456 constraintList_copy (/*@observer@*/ /*@temp@*/ constraintList s)
458 constraintList ret = constraintList_makeNew ();
460 constraintList_elements (s, el)
462 ret = constraintList_add (ret, constraint_copy (el));
463 } end_constraintList_elements;
468 constraintList constraintList_preserveOrig (constraintList c)
470 DPRINTF((message("constraintList_preserveOrig preserving the originial constraints for %s ", constraintList_print (c) ) ));
472 constraintList_elements_private (c, el)
474 el = constraint_preserveOrig (el);
476 end_constraintList_elements_private;
480 constraintList constraintList_preserveCallInfo (/*@returned@*/ constraintList c,/*@observer@*/ /*@dependent@*/ /*@observer@*/ exprNode fcn)
482 DPRINTF((message("constraintList_preserveCallInfo %s ", constraintList_print (c) ) ));
484 constraintList_elements_private (c, el)
486 el = constraint_setFcnPre(el);
487 el = constraint_origAddGeneratingExpr (el, fcn);
489 end_constraintList_elements_private;
493 constraintList constraintList_single (constraint c)
496 res = constraintList_makeNew();
497 res = constraintList_add (res, c);
501 constraintList constraintList_addGeneratingExpr (constraintList c,/*@dependent@*/ exprNode e)
503 DPRINTF ((message ("entering constraintList_addGeneratingExpr for %s ", exprNode_unparse(e) ) ));
505 constraintList_elements_private (c, el)
507 DPRINTF ((message ("setting generatingExpr for %s to %s", constraint_print(el), exprNode_unparse(e) ) ));
508 el = constraint_addGeneratingExpr (el, e);
510 end_constraintList_elements_private;
514 /*@only@*/ constraintList constraintList_doFixResult (/*@only@*/constraintList postconditions, exprNode fcnCall)
517 ret = constraintList_makeNew();
518 constraintList_elements_private (postconditions, el)
520 ret = constraintList_add (ret, constraint_doFixResult (el, fcnCall) );
522 end_constraintList_elements_private;
524 constraintList_free(postconditions);
528 /*@only@*/ constraintList constraintList_doSRefFixConstraintParam (constraintList preconditions, /*@temp@*/ /*@observer@*/ exprNodeList arglist)
531 ret = constraintList_makeNew();
533 constraintList_elements (preconditions, el)
535 ret = constraintList_add(ret, constraint_doSRefFixConstraintParam (el, arglist) );
537 end_constraintList_elements;
539 constraintList_free (preconditions);
543 constraintList constraintList_doSRefFixBaseParam (constraintList preconditions, /*@observer@*/
544 exprNodeList arglist)
548 ret = constraintList_makeNew();
550 constraintList_elements (preconditions, el)
552 temp = constraint_copy(el);
553 ret = constraintList_add(ret, constraint_doSRefFixBaseParam (temp, arglist) );
555 end_constraintList_elements;
560 constraintList constraintList_togglePost (/*@returned@*/ constraintList c)
562 constraintList_elements_private (c, el)
564 el = constraint_togglePost(el);
565 if (constraint_hasOrig(el) )
567 el = constraint_togglePostOrig (el);
570 end_constraintList_elements_private;
574 /*@only@*/ constraintList constraintList_undump (FILE *f)
580 ret = constraintList_makeNew();
582 os = mstring_create (MAX_DUMP_LINE_LENGTH);
583 s = fgets (os, MAX_DUMP_LINE_LENGTH, f);
585 while (s != NULL && *s != ';')
590 c = reader_getWord(&s);
592 if (strcmp (c, "C") != 0)
594 llfatalbug(message("Error reading library. File may be corrupted"));
597 temp = constraint_undump (f);
598 ret = constraintList_add (ret, temp);
599 s = fgets (os, MAX_DUMP_LINE_LENGTH, f);
608 void constraintList_dump (/*@observer@*/ constraintList c, FILE *f)
610 constraintList_elements (c, el)
613 constraint_dump (el, f);
615 end_constraintList_elements; ;
619 constraintList constraintList_sort (/*@returned@*/ constraintList ret)
621 qsort (ret->elements, (size_t) ret->nelements,
622 (sizeof (*ret->elements)),
623 (int (*)(const void *, const void *)) constraint_compare);
625 DPRINTF((message("onstraint_sort returning") ));