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 constraint_printError (elem, loc);
240 end_constraintList_elements;
246 constraintList_printDetailed (constraintList s)
249 cstring st = cstring_undefined;
252 if (!constraintList_isDefined (s))
254 return cstring_makeLiteral ("<undefined>");
257 if (s->nelements == 0)
259 st = cstring_makeLiteral("<List Empty>");
263 for (i = 0; i < s->nelements; i++)
265 cstring type = cstring_undefined;
266 constraint current = s->elements[i];
268 if (constraint_isDefined(current ) )
270 cstring temp1 = constraint_printDetailed (current);
271 type = message ("%s %s\n", type, temp1 );
283 st = message ("%q %q", st, type);
289 /*{ x: constraint | (x in l1 -> resolve (x, l2) || (x in l2 -> resolve (x, l1)
293 constraintList_logicalOr (/*@observer@*/ constraintList l1, /*@observer@*/ constraintList l2)
297 DPRINTF ( (message ("Logical or on %s and %s",
298 constraintList_print(l1),
299 constraintList_print(l2)) ) );
301 ret = constraintList_makeNew();
302 constraintList_elements (l1, el)
304 temp = constraint_substitute (el, l2);
306 if (constraintList_resolve (el, l2) || constraintList_resolve(temp,l2) )
307 { /*avoid redundant constraints*/
308 if (!constraintList_resolve (el, ret) )
311 temp2 = constraint_copy(el);
312 ret = constraintList_add (ret, temp2);
315 constraint_free(temp);
317 end_constraintList_elements;
319 constraintList_elements (l2, el)
321 temp = constraint_substitute (el, l1);
323 if (constraintList_resolve (el, l1) || constraintList_resolve(temp,l1) )
325 /*avoid redundant constraints*/
326 if (!constraintList_resolve (el, ret) )
329 temp2 = constraint_copy(el);
330 ret = constraintList_add (ret, temp2);
333 constraint_free(temp);
335 end_constraintList_elements;
342 constraintList_free (/*@only@*/ constraintList s)
346 llassert(constraintList_isDefined(s) );
349 for (i = 0; i < s->nelements; i++)
351 constraint_free (s->elements[i]);
363 constraintList_copy (/*@observer@*/ /*@temp@*/ constraintList s)
365 constraintList ret = constraintList_makeNew ();
367 constraintList_elements (s, el)
369 ret = constraintList_add (ret, constraint_copy (el));
370 } end_constraintList_elements;
375 constraintList constraintList_preserveOrig (constraintList c)
377 DPRINTF((message("constraintList_preserveOrig preserving the originial constraints for %s ", constraintList_print (c) ) ));
379 constraintList_elements_private (c, el)
381 el = constraint_preserveOrig (el);
383 end_constraintList_elements_private;
387 constraintList constraintList_preserveCallInfo (/*@returned@*/ constraintList c,/*@observer@*/ /*@dependent@*/ /*@observer@*/ exprNode fcn)
389 DPRINTF((message("constraintList_preserveOrig preserving the originial constraints for %s ", constraintList_print (c) ) ));
391 constraintList_elements_private (c, el)
393 // el = constraint_preserveOrig (el);
394 el = constraint_setFcnPre(el);
395 el = constraint_origAddGeneratingExpr (el, fcn);
397 end_constraintList_elements_private;
401 constraintList constraintList_single (constraint c)
404 res = constraintList_makeNew();
405 res = constraintList_add (res, c);
409 constraintList constraintList_addGeneratingExpr (constraintList c,/*@dependent@*/ exprNode e)
411 DPRINTF ((message ("entering constraintList_addGeneratingExpr for %s ", exprNode_unparse(e) ) ));
413 constraintList_elements_private (c, el)
415 DPRINTF ((message ("setting generatingExpr for %s to %s", constraint_print(el), exprNode_unparse(e) ) ));
416 el = constraint_addGeneratingExpr (el, e);
418 end_constraintList_elements_private;
422 /*@only@*/ constraintList constraintList_doFixResult (/*@only@*/constraintList postconditions, exprNode fcnCall)
425 ret = constraintList_makeNew();
426 constraintList_elements_private (postconditions, el)
428 ret = constraintList_add (ret, constraint_doFixResult (el, fcnCall) );
430 end_constraintList_elements_private;
432 constraintList_free(postconditions);
436 /*@only@*/ constraintList constraintList_doSRefFixConstraintParam (constraintList preconditions, /*@temp@*/ /*@observer@*/ exprNodeList arglist)
439 ret = constraintList_makeNew();
441 constraintList_elements (preconditions, el)
443 ret = constraintList_add(ret, constraint_doSRefFixConstraintParam (el, arglist) );
445 end_constraintList_elements;
447 constraintList_free (preconditions);
451 constraintList constraintList_doSRefFixBaseParam (constraintList preconditions, /*@observer@*/
452 exprNodeList arglist)
456 ret = constraintList_makeNew();
458 constraintList_elements (preconditions, el)
460 temp = constraint_copy(el);
461 ret = constraintList_add(ret, constraint_doSRefFixBaseParam (temp, arglist) );
463 end_constraintList_elements;
468 constraintList constraintList_togglePost (/*@returned@*/ constraintList c)
470 constraintList_elements_private (c, el)
472 el = constraint_togglePost(el);
473 if (constraint_hasOrig(el) )
475 el = constraint_togglePostOrig (el);
478 end_constraintList_elements_private;
482 /*@only@*/ constraintList constraintList_undump (FILE *f)
485 char *s = mstring_create (MAX_DUMP_LINE_LENGTH);
488 ret = constraintList_makeNew();
491 s = fgets (os, MAX_DUMP_LINE_LENGTH, f);
493 while (s != NULL && *s != ';')
498 c = reader_getWord(&s);
500 if (strcmp (c, "C") != 0)
502 llfatalbug(message("Error reading library. File may be corrupted"));
505 temp = constraint_undump (f);
506 ret = constraintList_add (ret, temp);
507 s = fgets (os, MAX_DUMP_LINE_LENGTH, f);
516 void constraintList_dump (/*@observer@*/ constraintList c, FILE *f)
518 constraintList_elements (c, el)
521 constraint_dump (el, f);
523 end_constraintList_elements; ;
527 constraintList constraintList_sort (/*@returned@*/ constraintList ret)
529 qsort (ret->elements, (size_t) ret->nelements,
530 (sizeof (*ret->elements) ), constraint_compare);