2 ** LCLint - 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://lclint.cs.virginia.edu
27 ** based on list_template.c
29 ** where T has T_equal (or change this) and T_unparse
32 # include "lclintMacros.nf"
36 /*@iter constraintList_elements_private_only (sef constraintList x, yield only constraint el); @*/
37 # define constraintList_elements_private_only(x, m_el) \
38 { if (constraintList_isDefined (x)) { int m_ind; constraint *m_elements = &((x)->elements[0]); \
39 for (m_ind = 0 ; m_ind < (x)->nelements; m_ind++) \
40 { constraint m_el = *(m_elements++);
42 # define end_constraintList_elements_private_only }}}
45 /*@iter constraintList_elements_private (sef constraintList x, yield constraint el); @*/
46 # define constraintList_elements_private(x, m_el) \
47 { if (constraintList_isDefined (x)) { int m_ind; constraint *m_elements = &((x)->elements[0]); \
48 for (m_ind = 0 ; m_ind < (x)->nelements; m_ind++) \
49 { constraint m_el = *(m_elements++);
51 # define end_constraintList_elements_private }}}
54 /*@only@*/ constraintList constraintList_makeNew ()
56 constraintList s = (constraintList) dmalloc (sizeof (*s));
59 s->nspace = constraintListBASESIZE;
60 s->elements = (constraint *)
61 dmalloc (sizeof (*s->elements) * constraintListBASESIZE);
67 constraintList_grow (constraintList s)
70 constraint *newelements;
72 llassert (constraintList_isDefined (s));
74 s->nspace += constraintListBASESIZE;
75 newelements = (constraint *) dmalloc (sizeof (*newelements)
76 * (s->nelements + s->nspace));
78 for (i = 0; i < s->nelements; i++)
80 newelements[i] = s->elements[i];
84 s->elements = newelements;
89 constraintList_add (/*@returned@*/ constraintList s, /*@only@*/ constraint el)
91 llassert (constraintList_isDefined (s));
94 // el = constraint_simplify (el);
95 if (constraintList_resolve (el, s) )
102 constraintList_grow (s);
105 s->elements[s->nelements] = el;
110 /* frees everything but actual constraints */
111 /* This function should only be used if you have
112 other references to unshared constraints
114 static void constraintList_freeShallow (/*@only@*/ constraintList c)
116 if (constraintList_isDefined(c) )
127 /*@only@*/ constraintList constraintList_addList (/*@only@*/ /*@returned@*/ constraintList s, /*@observer@*/ constraintList newList)
129 llassert(constraintList_isDefined(s) );
130 llassert(constraintList_isDefined(newList) );
132 if (newList == constraintList_undefined)
135 constraintList_elements (newList, elem)
137 s = constraintList_add (s, constraint_copy(elem) );
139 end_constraintList_elements;
144 constraintList constraintList_addListFree (/*@returned@*/ constraintList s, /*@only@*/ constraintList newList)
146 llassert(constraintList_isDefined(s) );
147 llassert(constraintList_isDefined(newList) );
149 if (constraintList_isUndefined(newList) )
152 constraintList_elements_private_only(newList, elem)
154 s = constraintList_add (s, elem);
156 end_constraintList_elements_private_only
158 constraintList_freeShallow(newList);
163 extern /*@only@*/ cstring constraintList_unparse ( /*@observer@*/ constraintList s) /*@*/
165 return (constraintList_print(s));
170 constraintList_print (/*@temp@*/ constraintList s) /*@*/
173 cstring st = cstring_undefined;
176 if (!constraintList_isDefined (s))
178 return cstring_makeLiteral ("<undefined>");
181 if (s->nelements == 0)
183 st = cstring_makeLiteral("<List Empty>");
187 for (i = 0; i < s->nelements; i++)
189 cstring type = cstring_undefined;
190 constraint current = s->elements[i];
192 if (constraint_isDefined(current) )
195 if ( context_getFlag (FLG_ORCONSTRAINT) )
196 temp1 = constraint_printOr(current);
198 temp1 = constraint_print(current);
199 type = message ("%q %q\n", type, temp1 );
209 st = message ("%q, %q", st, type);
216 void constraintList_printErrorPostConditions (constraintList s, fileloc loc)
219 constraintList_elements (s, elem)
221 if (constraint_isDefined(elem))
223 constraint_printErrorPostCondition (elem, loc);
226 end_constraintList_elements;
230 void constraintList_printError (constraintList s, fileloc loc)
233 constraintList_elements (s, elem)
235 if (constraint_isDefined(elem) )
237 if (constraint_isPost(elem) )
238 constraint_printErrorPostCondition (elem, loc);
240 constraint_printError (elem, loc);
243 end_constraintList_elements;
249 constraintList_printDetailed (constraintList s)
252 cstring st = cstring_undefined;
255 if (!constraintList_isDefined (s))
257 return cstring_makeLiteral ("<undefined>");
260 if (s->nelements == 0)
262 st = cstring_makeLiteral("<List Empty>");
266 for (i = 0; i < s->nelements; i++)
268 cstring type = cstring_undefined;
269 constraint current = s->elements[i];
271 if (constraint_isDefined(current ) )
273 cstring temp1 = constraint_printDetailed (current);
274 type = message ("%s %s\n", type, temp1 );
286 st = message ("%q %q", st, type);
292 /*{ x: constraint | (x in l1 -> resolve (x, l2) || (x in l2 -> resolve (x, l1)
296 constraintList_logicalOr (/*@observer@*/ constraintList l1, /*@observer@*/ constraintList l2)
300 DPRINTF ( (message ("Logical or on %s and %s",
301 constraintList_print(l1),
302 constraintList_print(l2)) ) );
304 ret = constraintList_makeNew();
305 constraintList_elements (l1, el)
307 temp = constraint_substitute (el, l2);
309 if (constraintList_resolve (el, l2) || constraintList_resolve(temp,l2) )
310 { /*avoid redundant constraints*/
311 if (!constraintList_resolve (el, ret) )
314 temp2 = constraint_copy(el);
315 ret = constraintList_add (ret, temp2);
318 constraint_free(temp);
320 end_constraintList_elements;
322 constraintList_elements (l2, el)
324 temp = constraint_substitute (el, l1);
326 if (constraintList_resolve (el, l1) || constraintList_resolve(temp,l1) )
328 /*avoid redundant constraints*/
329 if (!constraintList_resolve (el, ret) )
332 temp2 = constraint_copy(el);
333 ret = constraintList_add (ret, temp2);
336 constraint_free(temp);
338 end_constraintList_elements;
345 constraintList_free (/*@only@*/ constraintList s)
349 llassert(constraintList_isDefined(s) );
352 for (i = 0; i < s->nelements; i++)
354 constraint_free (s->elements[i]);
366 constraintList_copy (/*@observer@*/ /*@temp@*/ constraintList s)
368 constraintList ret = constraintList_makeNew ();
370 constraintList_elements (s, el)
372 ret = constraintList_add (ret, constraint_copy (el));
373 } end_constraintList_elements;
378 constraintList constraintList_preserveOrig (constraintList c)
380 DPRINTF((message("constraintList_preserveOrig preserving the originial constraints for %s ", constraintList_print (c) ) ));
382 constraintList_elements_private (c, el)
384 el = constraint_preserveOrig (el);
386 end_constraintList_elements_private;
390 constraintList constraintList_preserveCallInfo (/*@returned@*/ constraintList c,/*@observer@*/ /*@dependent@*/ /*@observer@*/ exprNode fcn)
392 DPRINTF((message("constraintList_preserveCallInfo %s ", constraintList_print (c) ) ));
394 constraintList_elements_private (c, el)
396 // el = constraint_preserveOrig (el);
397 el = constraint_setFcnPre(el);
398 el = constraint_origAddGeneratingExpr (el, fcn);
400 end_constraintList_elements_private;
404 constraintList constraintList_single (constraint c)
407 res = constraintList_makeNew();
408 res = constraintList_add (res, c);
412 constraintList constraintList_addGeneratingExpr (constraintList c,/*@dependent@*/ exprNode e)
414 DPRINTF ((message ("entering constraintList_addGeneratingExpr for %s ", exprNode_unparse(e) ) ));
416 constraintList_elements_private (c, el)
418 DPRINTF ((message ("setting generatingExpr for %s to %s", constraint_print(el), exprNode_unparse(e) ) ));
419 el = constraint_addGeneratingExpr (el, e);
421 end_constraintList_elements_private;
425 /*@only@*/ constraintList constraintList_doFixResult (/*@only@*/constraintList postconditions, exprNode fcnCall)
428 ret = constraintList_makeNew();
429 constraintList_elements_private (postconditions, el)
431 ret = constraintList_add (ret, constraint_doFixResult (el, fcnCall) );
433 end_constraintList_elements_private;
435 constraintList_free(postconditions);
439 /*@only@*/ constraintList constraintList_doSRefFixConstraintParam (constraintList preconditions, /*@temp@*/ /*@observer@*/ exprNodeList arglist)
442 ret = constraintList_makeNew();
444 constraintList_elements (preconditions, el)
446 ret = constraintList_add(ret, constraint_doSRefFixConstraintParam (el, arglist) );
448 end_constraintList_elements;
450 constraintList_free (preconditions);
454 constraintList constraintList_doSRefFixBaseParam (constraintList preconditions, /*@observer@*/
455 exprNodeList arglist)
459 ret = constraintList_makeNew();
461 constraintList_elements (preconditions, el)
463 temp = constraint_copy(el);
464 ret = constraintList_add(ret, constraint_doSRefFixBaseParam (temp, arglist) );
466 end_constraintList_elements;
471 constraintList constraintList_togglePost (/*@returned@*/ constraintList c)
473 constraintList_elements_private (c, el)
475 el = constraint_togglePost(el);
476 if (constraint_hasOrig(el) )
478 el = constraint_togglePostOrig (el);
481 end_constraintList_elements_private;
485 /*@only@*/ constraintList constraintList_undump (FILE *f)
488 char *s = mstring_create (MAX_DUMP_LINE_LENGTH);
491 ret = constraintList_makeNew();
494 s = fgets (os, MAX_DUMP_LINE_LENGTH, f);
496 while (s != NULL && *s != ';')
501 c = reader_getWord(&s);
503 if (strcmp (c, "C") != 0)
505 llfatalbug(message("Error reading library. File may be corrupted"));
508 temp = constraint_undump (f);
509 ret = constraintList_add (ret, temp);
510 s = fgets (os, MAX_DUMP_LINE_LENGTH, f);
519 void constraintList_dump (/*@observer@*/ constraintList c, FILE *f)
521 constraintList_elements (c, el)
524 constraint_dump (el, f);
526 end_constraintList_elements; ;
530 constraintList constraintList_sort (/*@returned@*/ constraintList ret)
532 qsort (ret->elements, (size_t) ret->nelements,
533 (sizeof (*ret->elements) ), constraint_compare);