X-Git-Url: http://andersk.mit.edu/gitweb/splint.git/blobdiff_plain/103db890f4c938d87ba5e66873c757071dd9d2f3..9a48d98c204aab98e0cd2d427808654cf280b62e:/src/constraintList.c diff --git a/src/constraintList.c b/src/constraintList.c index 7cf3f85..625d716 100644 --- a/src/constraintList.c +++ b/src/constraintList.c @@ -1,5 +1,5 @@ /* -** LCLint - annotation-assisted static program checker +** Splint - annotation-assisted static program checker ** Copyright (C) 1994-2000 University of Virginia, ** Massachusetts Institute of Technology ** @@ -17,10 +17,11 @@ ** 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 */ + /* ** constraintList.c ** @@ -29,10 +30,28 @@ ** where T has T_equal (or change this) and T_unparse */ -# include "lclintMacros.nf" +# include "splintMacros.nf" # include "llbasic.h" -constraintList constraintList_new () +/*@iter constraintList_elements_private_only (sef constraintList x, yield only constraint el); @*/ +# define constraintList_elements_private_only(x, m_el) \ + { if (constraintList_isDefined (x)) { int m_ind; constraint *m_elements = &((x)->elements[0]); \ + for (m_ind = 0 ; m_ind < (x)->nelements; m_ind++) \ + { constraint m_el = *(m_elements++); + +# define end_constraintList_elements_private_only }}} + + +/*@iter constraintList_elements_private (sef constraintList x, yield constraint el); @*/ +# define constraintList_elements_private(x, m_el) \ + { if (constraintList_isDefined (x)) { int m_ind; constraint *m_elements = &((x)->elements[0]); \ + for (m_ind = 0 ; m_ind < (x)->nelements; m_ind++) \ + { constraint m_el = *(m_elements++); + +# define end_constraintList_elements_private }}} + + +/*@only@*/ constraintList constraintList_makeNew () { constraintList s = (constraintList) dmalloc (sizeof (*s)); @@ -40,7 +59,7 @@ constraintList constraintList_new () s->nspace = constraintListBASESIZE; s->elements = (constraint *) dmalloc (sizeof (*s->elements) * constraintListBASESIZE); - + return (s); } @@ -50,6 +69,8 @@ constraintList_grow (constraintList s) int i; constraint *newelements; + llassert (constraintList_isDefined (s)); + s->nspace += constraintListBASESIZE; newelements = (constraint *) dmalloc (sizeof (*newelements) * (s->nelements + s->nspace)); @@ -63,14 +84,19 @@ constraintList_grow (constraintList s) s->elements = newelements; } -/* void constraintList_exprNodemerge(void) */ -/* { */ -/* } */ + constraintList -constraintList_add (constraintList s, constraint el) +constraintList_add (/*@returned@*/ constraintList s, /*@only@*/ constraint el) { - if (resolve (el, s) ) - return s; + llassert (constraintList_isDefined (s)); + + /*drl7x */ + + if (constraintList_resolve (el, s) ) + { + constraint_free (el); + return s; + } if (s->nspace <= 0) constraintList_grow (s); @@ -81,40 +107,130 @@ constraintList_add (constraintList s, constraint el) return s; } -constraintList constraintList_addList (constraintList s, constraintList new) +/* frees everything but actual constraints */ +/* This function should only be used if you have + other references to unshared constraints +*/ +static void constraintList_freeShallow (/*@only@*/ constraintList c) +{ + if (constraintList_isDefined(c) ) + { + free (c->elements); + c->elements = NULL; + c->nelements = -1; + c->nspace = -1; + } + free (c); + c = NULL; +} + +/*@only@*/ constraintList constraintList_addList (/*@only@*/ /*@returned@*/ constraintList s, /*@observer@*/ /*@temp@*/ constraintList newList) +{ + llassert(constraintList_isDefined(s) ); + llassert(constraintList_isDefined(newList) ); + + if (newList == constraintList_undefined) + return s; + + constraintList_elements (newList, elem) + { + s = constraintList_add (s, constraint_copy(elem) ); + } + end_constraintList_elements; + + return s; +} + +constraintList constraintList_addListFree (/*@returned@*/ constraintList s, /*@only@*/ constraintList newList) { - llassert(s); - llassert(new); + llassert(constraintList_isDefined(s) ); + llassert(constraintList_isDefined(newList) ); - if (new == constraintList_undefined) + if (constraintList_isUndefined(newList) ) return s; - constraintList_elements(new, elem) + constraintList_elements_private_only(newList, elem) { s = constraintList_add (s, elem); } - end_constraintList_elements + end_constraintList_elements_private_only + + constraintList_freeShallow(newList); return s; } -cstring -constraintList_print (constraintList s) /*@*/ + +constraintList constraintList_removeSurpressed (/*@only@*/ constraintList s) +{ + constraintList ret; + fileloc loc; + llassert(constraintList_isDefined(s) ); + + ret = constraintList_makeNew(); + + constraintList_elements_private_only(s, elem) + { + loc = constraint_getFileloc(elem); + + if (fileloc_isUndefined(loc)) + { + ret = constraintList_add (ret, elem); + } + + else if (context_suppressFlagMsg(FLG_BOUNDSWRITE, loc) ) + { + DPRINTF ((message ("constraintList_removeSurpressed getting rid of surpressed constraint %q", + constraint_unparse(elem)))); + constraint_free(elem); + } + + else if (!constraint_hasMaxSet(elem) && context_suppressFlagMsg(FLG_BOUNDSREAD, loc)) + { + DPRINTF ((message("constraintList_removeSurpressed getting rid of surpressed constraint %q", + constraint_unparse(elem)))); + constraint_free(elem); + } + else + { + ret = constraintList_add (ret, elem); + } + fileloc_free(loc); + } + end_constraintList_elements_private_only; + + constraintList_freeShallow(s); + + return ret; +} + +# if 0 +static /*@only@*/ cstring +constraintList_unparseLocation (/*@temp@*/ constraintList s) /*@*/ { int i; cstring st = cstring_undefined; bool first = TRUE; + + if (!constraintList_isDefined (s)) + { + return cstring_makeLiteral (""); + } if (s->nelements == 0) - st = cstring_makeLiteral(""); - + { + st = cstring_makeLiteral(""); + return st; + } + for (i = 0; i < s->nelements; i++) { cstring type = cstring_undefined; constraint current = s->elements[i]; - if (current != NULL) + if (constraint_isDefined(current) ) { - cstring temp1 = constraint_print(current); + cstring temp1; + temp1 = constraint_unparseLocation(current); type = message ("%q %q\n", type, temp1 ); } @@ -127,53 +243,135 @@ constraintList_print (constraintList s) /*@*/ { st = message ("%q, %q", st, type); } + } + + return st; +} +# endif + +/*@only@*/ cstring +constraintList_unparse (/*@temp@*/ constraintList s) /*@*/ +{ + int i; + cstring st = cstring_undefined; + bool first = TRUE; + + if (!constraintList_isDefined (s)) + { + return cstring_makeLiteral (""); + } + + if (s->nelements == 0) + { + st = cstring_makeLiteral(""); + return st; } + + for (i = 0; i < s->nelements; i++) + { + cstring type = cstring_undefined; + constraint current = s->elements[i]; + + if (constraint_isDefined(current) ) + { + cstring temp1; + + if (context_getFlag (FLG_ORCONSTRAINT)) + { + temp1 = constraint_unparseOr(current); + } + else + { + temp1 = constraint_unparse (current); + } + type = message ("%q %q\n", type, temp1 ); + } + + if (first) + { + st = type; + first = FALSE; + } + else + { + st = message ("%q, %q", st, type); + } + } + return st; } -void constraintList_printError (constraintList s, fileloc loc) +void constraintList_unparseErrorPostConditions (constraintList s, fileloc loc) +{ + + constraintList_elements (s, elem) + { + if (constraint_isDefined(elem)) + { + constraint_printErrorPostCondition (elem, loc); + } + } + end_constraintList_elements; + return; +} + +void constraintList_unparseError (constraintList s, fileloc loc) { constraintList_elements (s, elem) { - if (elem != NULL) + if (constraint_isDefined(elem) ) { - constraint_printError (elem, loc); + if (constraint_isPost(elem) ) + constraint_printErrorPostCondition (elem, loc); + else + constraint_printError (elem, loc); } } end_constraintList_elements; return; } + cstring -constraintList_printDetailed (constraintList s) +constraintList_unparseDetailed (constraintList s) { int i; cstring st = cstring_undefined; bool first = TRUE; + if (!constraintList_isDefined (s)) + { + return cstring_makeLiteral (""); + } + if (s->nelements == 0) - st = cstring_makeLiteral(""); - + { + st = cstring_makeLiteral(""); + return st; + } + for (i = 0; i < s->nelements; i++) { cstring type = cstring_undefined; constraint current = s->elements[i]; - if (current != NULL) + if (constraint_isDefined(current ) ) { - cstring temp1 = constraint_printDetailed (current); + cstring temp1 = constraint_unparseDetailed (current); type = message ("%s %s\n", type, temp1 ); + cstring_free(temp1); } if (first) { st = type; first = FALSE; + type = NULL; } else { - st = message ("%s %s", st, type); + st = message ("%q %q", st, type); } } return st; @@ -183,37 +381,47 @@ constraintList_printDetailed (constraintList s) } */ constraintList -constraintList_logicalOr (constraintList l1, constraintList l2) +constraintList_logicalOr (/*@observer@*/ constraintList l1, /*@observer@*/ constraintList l2) { constraint temp; constraintList ret; - DPRINTF ( (message ("Logical of on %s and %s", - constraintList_print(l1), - constraintList_print(l2)) ) ); + DPRINTF ((message ("Logical or on %s and %s", + constraintList_unparse(l1), + constraintList_unparse(l2)) ) ); - ret = constraintList_new(); + ret = constraintList_makeNew(); constraintList_elements (l1, el) { - temp = substitute (el, l2); + temp = constraint_substitute (el, l2); - if (resolve (el, l2) || resolve(temp,l2) ) + if (constraintList_resolve (el, l2) || constraintList_resolve(temp,l2) ) { /*avoid redundant constraints*/ - if (!resolve (el, ret) ) - ret = constraintList_add (ret, el); + if (!constraintList_resolve (el, ret) ) + { + constraint temp2; + temp2 = constraint_copy(el); + ret = constraintList_add (ret, temp2); + } } + constraint_free(temp); } end_constraintList_elements; constraintList_elements (l2, el) { - temp = substitute (el, l1); + temp = constraint_substitute (el, l1); - if (resolve (el, l1) || resolve(temp,l1) ) + if (constraintList_resolve (el, l1) || constraintList_resolve(temp,l1) ) { /*avoid redundant constraints*/ - if (!resolve (el, ret) ) - ret = constraintList_add (ret, el); + if (!constraintList_resolve (el, ret) ) + { + constraint temp2; + temp2 = constraint_copy(el); + ret = constraintList_add (ret, temp2); + } } + constraint_free(temp); } end_constraintList_elements; @@ -222,22 +430,30 @@ constraintList_logicalOr (constraintList l1, constraintList l2) } void -constraintList_free (constraintList s) +constraintList_free (/*@only@*/ constraintList s) { - int i; - for (i = 0; i < s->nelements; i++) + if (constraintList_isDefined (s)) { - // constraint_free (s->elements[i]); + int i; + + for (i = 0; i < s->nelements; i++) + { + constraint_free (s->elements[i]); + } + + sfree (s->elements); + s->elements = NULL; + s->nelements = -1; + s->nspace = -1; + sfree (s); + s = NULL; } - - sfree (s->elements); - sfree (s); } constraintList -constraintList_copy (constraintList s) /*@*/ +constraintList_copy (/*@observer@*/ /*@temp@*/ constraintList s) { - constraintList ret = constraintList_new (); + constraintList ret = constraintList_makeNew (); constraintList_elements (s, el) { @@ -249,44 +465,87 @@ constraintList_copy (constraintList s) /*@*/ constraintList constraintList_preserveOrig (constraintList c) { - constraintList_elements (c, el) + DPRINTF((message("constraintList_preserveOrig preserving the originial constraints for %s ", constraintList_unparse (c) ) )); + + constraintList_elements_private (c, el) { el = constraint_preserveOrig (el); } - end_constraintList_elements; + end_constraintList_elements_private; + return c; +} + +constraintList constraintList_preserveCallInfo (/*@returned@*/ constraintList c,/*@observer@*/ /*@dependent@*/ /*@observer@*/ exprNode fcn) +{ + DPRINTF((message("constraintList_preserveCallInfo %s ", constraintList_unparse (c) ) )); + + constraintList_elements_private (c, el) + { + el = constraint_setFcnPre(el); + el = constraint_origAddGeneratingExpr (el, fcn); + } + end_constraintList_elements_private; return c; } -constraintList constraintList_addGeneratingExpr (constraintList c, exprNode e) +constraintList constraintList_single (constraint c) +{ + constraintList res; + res = constraintList_makeNew(); + res = constraintList_add (res, c); + return res; +} + +constraintList constraintList_addGeneratingExpr (constraintList c,/*@dependent@*/ exprNode e) { DPRINTF ((message ("entering constraintList_addGeneratingExpr for %s ", exprNode_unparse(e) ) )); - constraintList_elements (c, el) + constraintList_elements_private (c, el) { - DPRINTF ((message ("setting generatingExpr for %s to %s", constraint_print(el), exprNode_unparse(e) ) )); + DPRINTF ((message ("setting generatingExpr for %s to %s", constraint_unparse(el), exprNode_unparse(e) ) )); el = constraint_addGeneratingExpr (el, e); } - end_constraintList_elements; + end_constraintList_elements_private; return c; } -constraintList constraintList_doFixResult (constraintList postconditions, exprNode fcnCall) +/*@only@*/ constraintList constraintList_doFixResult (/*@only@*/constraintList postconditions, exprNode fcnCall) { constraintList ret; - ret = constraintList_new(); - constraintList_elements (postconditions, el) + ret = constraintList_makeNew(); + constraintList_elements_private (postconditions, el) { ret = constraintList_add (ret, constraint_doFixResult (el, fcnCall) ); } + end_constraintList_elements_private; + + constraintList_free(postconditions); + return ret; +} +/* +Commenting out because function is not yet stable + +/ *@only@* / constraintList constraintList_doSRefFixStructConstraint(constraintList invars, sRef s, ctype ct ) +{ + constraintList ret; + ret = constraintList_makeNew(); + + constraintList_elements (invars, el) + { + ret = constraintList_add(ret, constraint_doSRefFixInvarConstraint (el, s, ct) ); + } end_constraintList_elements; + / * constraintList_free (invars);* / + return ret; } +*/ -constraintList constraintList_doSRefFixConstraintParam (constraintList preconditions, exprNodeList arglist) +/*@only@*/ constraintList constraintList_doSRefFixConstraintParam (constraintList preconditions, /*@temp@*/ /*@observer@*/ exprNodeList arglist) { constraintList ret; - ret = constraintList_new(); + ret = constraintList_makeNew(); constraintList_elements (preconditions, el) { @@ -294,17 +553,21 @@ constraintList constraintList_doSRefFixConstraintParam (constraintList precondit } end_constraintList_elements; + constraintList_free (preconditions); + return ret; } -constraintList constraintList_doSRefFixBaseParam (constraintList preconditions, +constraintList constraintList_doSRefFixBaseParam (constraintList preconditions, /*@observer@*/ exprNodeList arglist) { constraintList ret; - ret = constraintList_new(); + constraint temp; + ret = constraintList_makeNew(); constraintList_elements (preconditions, el) { - ret = constraintList_add(ret, constraint_doSRefFixBaseParam (el, arglist) ); + temp = constraint_copy(el); + ret = constraintList_add(ret, constraint_doSRefFixBaseParam (temp, arglist) ); } end_constraintList_elements; @@ -313,12 +576,82 @@ constraintList constraintList_doSRefFixBaseParam (constraintList preconditions, constraintList constraintList_togglePost (/*@returned@*/ constraintList c) { - constraintList_elements (c, el) + constraintList_elements_private (c, el) { - el->post = !el->post; + el = constraint_togglePost(el); + if (constraint_hasOrig(el) ) + { + el = constraint_togglePostOrig (el); + } } - end_constraintList_elements; + end_constraintList_elements_private; return c; } +/*@only@*/ constraintList constraintList_undump (FILE *f) +{ + constraintList ret; + char *s; + char *os; + + ret = constraintList_makeNew(); + + os = mstring_create (MAX_DUMP_LINE_LENGTH); + s = fgets (os, MAX_DUMP_LINE_LENGTH, f); + + while (s != NULL && *s != ';') + { + constraint temp; + char * c; + + c = reader_getWord(&s); + + if (! mstring_isDefined(c) ) + { + llfatalbug(message("Library file is corrupted") ); + } + + + if (strcmp (c, "C") != 0) + { + llfatalbug(message("Error reading library. File may be corrupted")); + } + + temp = constraint_undump (f); + ret = constraintList_add (ret, temp); + s = fgets (os, MAX_DUMP_LINE_LENGTH, f); + free(c); + } + free(s); + + return ret; +} + + +void constraintList_dump (/*@observer@*/ constraintList c, FILE *f) +{ + constraintList_elements (c, el) + { + fprintf(f, "C\n"); + constraint_dump (el, f); + } + end_constraintList_elements; ; +} + + +constraintList constraintList_sort (/*@returned@*/ constraintList ret) +{ + if (constraintList_isUndefined(ret) ) + { + llassert(FALSE); + return ret; + } + qsort (ret->elements, (size_t) ret->nelements, + (sizeof (*ret->elements)), + (int (*)(const void *, const void *)) constraint_compare); + + DPRINTF((message("onstraint_sort returning") )); + return ret; +} +