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616915dd | 1 | /* |
11db3170 | 2 | ** Splint - annotation-assisted static program checker |
c59f5181 | 3 | ** Copyright (C) 1994-2003 University of Virginia, |
65f973be | 4 | ** Massachusetts Institute of Technology |
5 | ** | |
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. | |
10 | ** | |
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. | |
15 | ** | |
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. | |
19 | ** | |
155af98d | 20 | ** For information on splint: info@splint.org |
21 | ** To report a bug: splint-bug@splint.org | |
11db3170 | 22 | ** For more information: http://www.splint.org |
65f973be | 23 | */ |
24 | ||
25 | /* | |
26 | ** constraintTerm.c | |
616915dd | 27 | */ |
28 | ||
b7b694d6 | 29 | /* #define DEBUGPRINT 1 */ |
616915dd | 30 | |
31 | # include <ctype.h> /* for isdigit */ | |
1b8ae690 | 32 | # include "splintMacros.nf" |
616915dd | 33 | # include "basic.h" |
34 | # include "cgrammar.h" | |
35 | # include "cgrammar_tokens.h" | |
36 | ||
37 | # include "exprChecks.h" | |
616915dd | 38 | # include "exprNodeSList.h" |
39 | ||
f0171cff | 40 | bool constraintTerm_isDefined (constraintTerm t) |
990ec868 | 41 | { |
42 | return t != NULL; | |
43 | } | |
44 | ||
d46ce6a4 | 45 | void constraintTerm_free (/*@only@*/ constraintTerm term) |
46 | { | |
990ec868 | 47 | llassert (constraintTerm_isDefined (term)); |
48 | ||
d46ce6a4 | 49 | fileloc_free (term->loc); |
50 | ||
51 | switch (term->kind) | |
52 | { | |
2a6e9c30 | 53 | case CTT_EXPR: |
d46ce6a4 | 54 | /* we don't free an exprNode*/ |
55 | break; | |
2a6e9c30 | 56 | case CTT_SREF: |
d46ce6a4 | 57 | /* sref */ |
795e7f34 | 58 | sRef_free (term->value.sref); |
d46ce6a4 | 59 | break; |
2a6e9c30 | 60 | case CTT_INTLITERAL: |
d46ce6a4 | 61 | /* don't free an int */ |
62 | break; | |
2a6e9c30 | 63 | case CTT_ERRORBADCONSTRAINTTERMTYPE: |
d46ce6a4 | 64 | default: |
65 | /* type was set incorrectly */ | |
66 | llcontbug (message("constraintTerm_free type was set incorrectly")); | |
67 | } | |
b7b694d6 | 68 | |
2a6e9c30 | 69 | term->kind = CTT_ERRORBADCONSTRAINTTERMTYPE; |
d46ce6a4 | 70 | free (term); |
71 | } | |
616915dd | 72 | |
4ab867d6 | 73 | /*@only@*/ static/*@out@*/ constraintTerm new_constraintTermExpr (void) |
616915dd | 74 | { |
75 | constraintTerm ret; | |
76 | ret = dmalloc (sizeof (* ret ) ); | |
bb25bea6 | 77 | ret->value.intlit = 0; |
616915dd | 78 | return ret; |
79 | } | |
80 | ||
81 | ||
82 | bool constraintTerm_isIntLiteral (constraintTerm term) | |
83 | { | |
dc92450f | 84 | llassert(term != NULL); |
616915dd | 85 | |
2a6e9c30 | 86 | if (term->kind == CTT_INTLITERAL) |
616915dd | 87 | return TRUE; |
88 | ||
89 | return FALSE; | |
90 | } | |
91 | ||
d30bc0c7 | 92 | |
93 | bool constraintTerm_isInitBlock (/*@observer@*/ /*@temp@*/ constraintTerm c) /*@*/ | |
94 | { | |
95 | llassert (c != NULL); | |
2a6e9c30 | 96 | |
97 | if (c->kind == CTT_EXPR) | |
d30bc0c7 | 98 | { |
2a6e9c30 | 99 | if (exprNode_isInitBlock (c->value.expr)) |
d30bc0c7 | 100 | { |
101 | return TRUE; | |
102 | } | |
103 | } | |
104 | return FALSE; | |
105 | } | |
106 | ||
107 | ||
a779b61e | 108 | bool constraintTerm_isExprNode (/*@observer@*/ /*@temp@*/ constraintTerm c) /*@*/ |
109 | { | |
110 | llassert (c != NULL); | |
2a6e9c30 | 111 | |
112 | if (c->kind == CTT_EXPR) | |
a779b61e | 113 | { |
114 | return TRUE; | |
115 | } | |
116 | return FALSE; | |
117 | } | |
118 | ||
749f175a | 119 | /*@access exprNode@*/ |
d30bc0c7 | 120 | int constraintTerm_getInitBlockLength (/*@observer@*/ /*@temp@*/ constraintTerm c) /*@*/ |
121 | { | |
2a6e9c30 | 122 | exprNodeList list; |
d30bc0c7 | 123 | int ret; |
124 | llassert (c != NULL); | |
125 | llassert (constraintTerm_isInitBlock (c) ); | |
2a6e9c30 | 126 | llassert (c->kind == CTT_EXPR); |
d30bc0c7 | 127 | |
128 | llassert(exprNode_isDefined(c->value.expr) ); | |
129 | ||
130 | if (exprNode_isUndefined(c->value.expr) ) | |
131 | { | |
132 | return 1; | |
133 | } | |
134 | ||
135 | if (c->value.expr->edata == exprData_undefined) | |
136 | { | |
137 | return 1; | |
138 | } | |
139 | list = exprData_getArgs(c->value.expr->edata); | |
140 | ||
141 | ret = exprNodeList_size(list); | |
142 | ||
143 | return ret; | |
144 | } | |
749f175a | 145 | /*@noaccess exprNode@*/ |
d30bc0c7 | 146 | |
147 | ||
dc92450f | 148 | bool constraintTerm_isStringLiteral (constraintTerm c) /*@*/ |
616915dd | 149 | { |
dc92450f | 150 | llassert (c != NULL); |
2a6e9c30 | 151 | if (c->kind == CTT_EXPR) |
616915dd | 152 | { |
153 | if (exprNode_knownStringValue(c->value.expr) ) | |
154 | { | |
155 | return TRUE; | |
156 | } | |
157 | } | |
158 | return FALSE; | |
159 | } | |
160 | ||
d30bc0c7 | 161 | |
162 | ||
616915dd | 163 | cstring constraintTerm_getStringLiteral (constraintTerm c) |
164 | { | |
dc92450f | 165 | llassert (c != NULL); |
616915dd | 166 | llassert (constraintTerm_isStringLiteral (c) ); |
2a6e9c30 | 167 | llassert (c->kind == CTT_EXPR); |
616915dd | 168 | |
dc92450f | 169 | return (cstring_copy ( multiVal_forceString (exprNode_getValue (c->value.expr) ) ) ); |
616915dd | 170 | } |
171 | ||
4ab867d6 | 172 | constraintTerm constraintTerm_simplify (/*@returned@*/ constraintTerm term) /*@modifies term@*/ |
616915dd | 173 | { |
2a6e9c30 | 174 | if (term->kind == CTT_EXPR) |
616915dd | 175 | { |
176 | if ( exprNode_knownIntValue (term->value.expr ) ) | |
177 | { | |
178 | long int temp; | |
28bf4b0b | 179 | |
616915dd | 180 | temp = exprNode_getLongValue (term->value.expr); |
dc92450f | 181 | term->value.intlit = (int)temp; |
2a6e9c30 | 182 | term->kind = CTT_INTLITERAL; |
616915dd | 183 | } |
184 | } | |
185 | return term; | |
186 | } | |
187 | ||
188 | fileloc constraintTerm_getFileloc (constraintTerm t) | |
189 | { | |
990ec868 | 190 | llassert (constraintTerm_isDefined (t)); |
616915dd | 191 | return (fileloc_copy (t->loc) ); |
192 | } | |
193 | ||
a8e557d3 | 194 | constraintTermType constraintTerm_getKind (constraintTerm t) |
195 | { | |
196 | llassert (constraintTerm_isDefined(t) ); | |
197 | ||
198 | return (t->kind); | |
199 | } | |
200 | ||
201 | /*@exposed@*/ sRef constraintTerm_getSRef (constraintTerm t) | |
202 | { | |
203 | llassert (constraintTerm_isDefined(t) ); | |
2a6e9c30 | 204 | llassert (t->kind == CTT_SREF); |
a8e557d3 | 205 | |
206 | return (t->value.sref); | |
207 | } | |
208 | ||
03d670b6 | 209 | /*@only@*/ constraintTerm constraintTerm_makeExprNode (/*@dependent@*/ exprNode e) |
616915dd | 210 | { |
211 | constraintTerm ret = new_constraintTermExpr(); | |
d46ce6a4 | 212 | ret->loc = fileloc_copy(exprNode_getfileloc(e)); |
616915dd | 213 | ret->value.expr = e; |
2a6e9c30 | 214 | ret->kind = CTT_EXPR; |
616915dd | 215 | ret = constraintTerm_simplify(ret); |
216 | return ret; | |
217 | } | |
218 | ||
28bf4b0b | 219 | /*@only@*/ constraintTerm constraintTerm_makesRef (/*@temp@*/ /*@observer@*/ sRef s) |
616915dd | 220 | { |
221 | constraintTerm ret = new_constraintTermExpr(); | |
222 | ret->loc = fileloc_undefined; | |
4ab867d6 | 223 | ret->value.sref = sRef_saveCopy(s); |
2a6e9c30 | 224 | ret->kind = CTT_SREF; |
616915dd | 225 | ret = constraintTerm_simplify(ret); |
226 | return ret; | |
227 | } | |
228 | ||
795e7f34 | 229 | |
230 | ||
616915dd | 231 | constraintTerm constraintTerm_copy (constraintTerm term) |
232 | { | |
233 | constraintTerm ret; | |
234 | ret = new_constraintTermExpr(); | |
235 | ret->loc = fileloc_copy (term->loc); | |
795e7f34 | 236 | |
237 | switch (term->kind) | |
238 | { | |
2a6e9c30 | 239 | case CTT_EXPR: |
795e7f34 | 240 | ret->value.expr = term->value.expr; |
241 | break; | |
2a6e9c30 | 242 | case CTT_INTLITERAL: |
795e7f34 | 243 | ret->value.intlit = term->value.intlit; |
244 | break; | |
245 | ||
2a6e9c30 | 246 | case CTT_SREF: |
795e7f34 | 247 | ret->value.sref = sRef_saveCopy(term->value.sref); |
248 | break; | |
249 | default: | |
250 | BADEXIT; | |
251 | } | |
616915dd | 252 | ret->kind = term->kind; |
253 | return ret; | |
254 | } | |
255 | ||
d46ce6a4 | 256 | constraintTerm constraintTerm_setFileloc (/*@returned@*/ constraintTerm term, fileloc loc) |
616915dd | 257 | { |
dc92450f | 258 | llassert(term != NULL); |
d46ce6a4 | 259 | |
28bf4b0b | 260 | if ( fileloc_isDefined( term->loc ) ) |
d46ce6a4 | 261 | fileloc_free(term->loc); |
262 | ||
616915dd | 263 | term->loc = fileloc_copy(loc); |
264 | return term; | |
265 | } | |
266 | ||
267 | ||
d46ce6a4 | 268 | static cstring constraintTerm_getName (constraintTerm term) |
616915dd | 269 | { |
270 | cstring s; | |
271 | s = cstring_undefined; | |
272 | ||
273 | llassert (term != NULL); | |
274 | ||
275 | switch (term->kind) | |
276 | { | |
2a6e9c30 | 277 | case CTT_EXPR: |
332e22fa | 278 | |
616915dd | 279 | s = message ("%s", exprNode_unparse (term->value.expr) ); |
280 | break; | |
2a6e9c30 | 281 | case CTT_INTLITERAL: |
a1fa5e0c | 282 | s = message (" %d ", (int) term->value.intlit); |
616915dd | 283 | break; |
284 | ||
2a6e9c30 | 285 | case CTT_SREF: |
d46ce6a4 | 286 | s = message ("%q", sRef_unparse (term->value.sref) ); |
616915dd | 287 | |
288 | break; | |
c3e695ff | 289 | default: |
290 | BADEXIT; | |
291 | /*@notreached@*/ | |
616915dd | 292 | break; |
293 | } | |
616915dd | 294 | |
c3e695ff | 295 | return s; |
616915dd | 296 | } |
297 | ||
298 | constraintTerm | |
d46ce6a4 | 299 | constraintTerm_doSRefFixBaseParam (/*@returned@*/constraintTerm term, exprNodeList arglist) /*@modifies term@*/ |
616915dd | 300 | { |
301 | llassert (term != NULL); | |
302 | ||
303 | switch (term->kind) | |
304 | { | |
2a6e9c30 | 305 | case CTT_EXPR: |
332e22fa | 306 | |
616915dd | 307 | break; |
2a6e9c30 | 308 | case CTT_INTLITERAL: |
b7b694d6 | 309 | break; |
616915dd | 310 | |
2a6e9c30 | 311 | case CTT_SREF: |
616915dd | 312 | term->value.sref = sRef_fixBaseParam (term->value.sref, arglist); |
616915dd | 313 | break; |
c3e695ff | 314 | default: |
315 | BADEXIT; | |
616915dd | 316 | } |
317 | return term; | |
318 | ||
319 | } | |
320 | ||
2a6e9c30 | 321 | cstring constraintTerm_unparse (constraintTerm term) /*@*/ |
616915dd | 322 | { |
323 | cstring s; | |
324 | s = cstring_undefined; | |
325 | ||
326 | llassert (term != NULL); | |
327 | ||
328 | switch (term->kind) | |
329 | { | |
2a6e9c30 | 330 | case CTT_EXPR: |
332e22fa | 331 | |
a779b61e | 332 | s = message ("%s @ %q", exprNode_unparse (term->value.expr), |
616915dd | 333 | fileloc_unparse (term->loc) ); |
334 | break; | |
2a6e9c30 | 335 | case CTT_INTLITERAL: |
a779b61e | 336 | s = message ("%d", (int)term->value.intlit); |
616915dd | 337 | break; |
338 | ||
2a6e9c30 | 339 | case CTT_SREF: |
a779b61e | 340 | s = message ("%q", sRef_unparseDebug (term->value.sref) ); |
616915dd | 341 | |
342 | break; | |
c3e695ff | 343 | default: |
344 | BADEXIT; | |
616915dd | 345 | } |
346 | ||
347 | return s; | |
348 | } | |
349 | ||
350 | ||
b9904f57 | 351 | constraintTerm constraintTerm_makeIntLiteral (long i) |
616915dd | 352 | { |
353 | constraintTerm ret = new_constraintTermExpr(); | |
354 | ret->value.intlit = i; | |
2a6e9c30 | 355 | ret->kind = CTT_INTLITERAL; |
616915dd | 356 | ret->loc = fileloc_undefined; |
357 | return ret; | |
358 | } | |
359 | ||
360 | bool constraintTerm_canGetValue (constraintTerm term) | |
361 | { | |
2a6e9c30 | 362 | if (term->kind == CTT_INTLITERAL) |
b9904f57 | 363 | { |
364 | return TRUE; | |
365 | } | |
2a6e9c30 | 366 | else if (term->kind == CTT_SREF) |
b9904f57 | 367 | { |
368 | if (sRef_hasValue (term->value.sref)) | |
369 | { | |
370 | multiVal mval = sRef_getValue (term->value.sref); | |
371 | ||
372 | return multiVal_isInt (mval); /* for now, only try to deal with int values */ | |
373 | } | |
374 | else | |
375 | { | |
376 | return FALSE; | |
377 | } | |
378 | } | |
2a6e9c30 | 379 | else if (term->kind == CTT_EXPR) |
b9904f57 | 380 | { |
381 | return FALSE; | |
382 | } | |
616915dd | 383 | else |
b9904f57 | 384 | { |
385 | return FALSE; | |
386 | } | |
616915dd | 387 | } |
388 | ||
b9904f57 | 389 | long constraintTerm_getValue (constraintTerm term) |
616915dd | 390 | { |
b9904f57 | 391 | llassert (constraintTerm_canGetValue (term)); |
392 | ||
2a6e9c30 | 393 | if (term->kind == CTT_INTLITERAL) |
b9904f57 | 394 | { |
395 | return term->value.intlit; | |
396 | } | |
2a6e9c30 | 397 | else if (term->kind == CTT_SREF) |
b9904f57 | 398 | { |
399 | if (sRef_hasValue (term->value.sref)) | |
400 | { | |
401 | multiVal mval = sRef_getValue (term->value.sref); | |
402 | ||
403 | return multiVal_forceInt (mval); /* for now, only try to deal with int values */ | |
404 | } | |
405 | else | |
406 | { | |
407 | BADBRANCH; | |
408 | } | |
409 | } | |
2a6e9c30 | 410 | else if (term->kind == CTT_EXPR) |
b9904f57 | 411 | { |
412 | BADBRANCH; | |
413 | } | |
414 | else | |
415 | { | |
416 | BADBRANCH; | |
417 | } | |
418 | ||
d30bc0c7 | 419 | BADEXIT; |
616915dd | 420 | } |
421 | ||
e5f31c00 | 422 | /*drl added this 10.30.001 |
423 | */ | |
424 | ||
425 | /*@exposed@*/ exprNode constraintTerm_getExprNode (constraintTerm t) | |
426 | { | |
427 | llassert (t != NULL); | |
428 | ||
2a6e9c30 | 429 | llassert (t->kind == CTT_EXPR); |
e5f31c00 | 430 | |
431 | return t->value.expr; | |
432 | ||
433 | } | |
434 | ||
435 | /*@exposed@*/ sRef constraintTerm_getsRef (constraintTerm t) | |
616915dd | 436 | { |
dc92450f | 437 | llassert (t != NULL); |
2a6e9c30 | 438 | if (t->kind == CTT_EXPR) |
616915dd | 439 | { |
c3e695ff | 440 | return exprNode_getSref(t->value.expr); |
616915dd | 441 | } |
442 | ||
2a6e9c30 | 443 | if (t->kind == CTT_SREF) |
616915dd | 444 | { |
c3e695ff | 445 | return t->value.sref; |
616915dd | 446 | } |
447 | ||
448 | return sRef_undefined; | |
449 | } | |
450 | ||
451 | bool constraintTerm_probSame (constraintTerm term1, constraintTerm term2) | |
452 | { | |
453 | cstring s1, s2; | |
454 | ||
455 | llassert (term1 !=NULL && term2 !=NULL); | |
456 | ||
bb7c2085 | 457 | DPRINTF ((message |
616915dd | 458 | ("Comparing srefs for %s and %s ", constraintTerm_print(term1), constraintTerm_print(term2) |
459 | ) | |
460 | ) | |
461 | ); | |
462 | ||
463 | s1 = constraintTerm_getName (term1); | |
464 | s2 = constraintTerm_getName (term2); | |
465 | ||
466 | if (cstring_equal (s1, s2) ) | |
467 | { | |
d46ce6a4 | 468 | DPRINTF ((message (" %q and %q are same", s1, s2 ) ) ); |
616915dd | 469 | return TRUE; |
470 | } | |
471 | else | |
472 | { | |
d46ce6a4 | 473 | DPRINTF ((message (" %q and %q are not same", s1, s2 ) ) ); |
616915dd | 474 | return FALSE; |
475 | } | |
476 | } | |
477 | ||
478 | bool constraintTerm_similar (constraintTerm term1, constraintTerm term2) | |
479 | { | |
480 | sRef s1, s2; | |
481 | ||
482 | llassert (term1 !=NULL && term2 !=NULL); | |
90bc41f7 | 483 | |
b9904f57 | 484 | if (constraintTerm_canGetValue (term1) && constraintTerm_canGetValue (term2)) |
2a6e9c30 | 485 | |
486 | /*3/30/2003 comment updated to reflect name change form INTLITERAL to CTT_INTLITERAL*/ | |
487 | /* evans 2001-07-24: was (term1->kind == CTT_INTLITERAL) && (term2->kind == CTT_INTLITERAL) ) */ | |
90bc41f7 | 488 | { |
b9904f57 | 489 | long t1, t2; |
90bc41f7 | 490 | |
b9904f57 | 491 | t1 = constraintTerm_getValue (term1); |
90bc41f7 | 492 | t2 = constraintTerm_getValue (term2); |
b9904f57 | 493 | |
494 | return (t1 == t2); | |
90bc41f7 | 495 | } |
b9904f57 | 496 | |
497 | if (constraintTerm_canGetValue (term1) || constraintTerm_canGetValue (term2)) | |
498 | { | |
499 | /* evans 2001-07-24: is this right? */ /*@i534@*/ | |
500 | return FALSE; | |
501 | } | |
502 | ||
616915dd | 503 | s1 = constraintTerm_getsRef (term1); |
504 | s2 = constraintTerm_getsRef (term2); | |
505 | ||
b9904f57 | 506 | if (!(sRef_isValid(s1) && sRef_isValid(s2))) |
616915dd | 507 | { |
508 | return FALSE; | |
509 | } | |
510 | ||
bb7c2085 | 511 | DPRINTF((message |
616915dd | 512 | ("Comparing srefs for %s and %s ", constraintTerm_print(term1), constraintTerm_print(term2) |
513 | ) | |
514 | ) | |
515 | ); | |
b9904f57 | 516 | |
517 | if (sRef_similarRelaxed(s1, s2) || sRef_sameName (s1, s2) ) | |
518 | { | |
519 | DPRINTF ((message (" %s and %s are same", constraintTerm_print(term1), constraintTerm_print(term2) ) )); | |
520 | return TRUE; | |
521 | } | |
522 | else | |
523 | { | |
524 | DPRINTF ((message (" %s and %s are not same", constraintTerm_print(term1), constraintTerm_print(term2) ) )); | |
525 | return FALSE; | |
526 | } | |
616915dd | 527 | } |
920a3797 | 528 | |
6fcd0b1e | 529 | void constraintTerm_dump (/*@observer@*/ constraintTerm t, FILE *f) |
920a3797 | 530 | { |
531 | fileloc loc; | |
532 | constraintTermValue value; | |
533 | constraintTermType kind; | |
534 | uentry u; | |
535 | ||
536 | loc = t->loc; | |
537 | ||
538 | value = t->value; | |
539 | ||
540 | kind = t->kind; | |
541 | ||
542 | fprintf(f, "%d\n", (int) kind); | |
543 | ||
544 | switch (kind) | |
545 | { | |
546 | ||
2a6e9c30 | 547 | case CTT_EXPR: |
920a3797 | 548 | u = exprNode_getUentry(t->value.expr); |
6fcd0b1e | 549 | fprintf (f, "%s\n", cstring_toCharsSafe (uentry_rawName (u))); |
920a3797 | 550 | break; |
551 | ||
2a6e9c30 | 552 | case CTT_SREF: |
920a3797 | 553 | { |
554 | sRef s; | |
555 | ||
556 | s = t->value.sref; | |
557 | ||
558 | if (sRef_isResult (s ) ) | |
559 | { | |
560 | fprintf(f, "Result\n"); | |
561 | } | |
6fcd0b1e | 562 | else if (sRef_isParam (s)) |
920a3797 | 563 | { |
564 | int param; | |
565 | ctype ct; | |
566 | cstring ctString; | |
567 | ||
568 | ||
569 | ct = sRef_getType (s); | |
570 | param = sRef_getParam(s); | |
571 | ||
572 | ctString = ctype_dump(ct); | |
573 | ||
28bf4b0b | 574 | fprintf(f, "Param %s %d\n", cstring_toCharsSafe(ctString), (int) param ); |
920a3797 | 575 | cstring_free(ctString); |
576 | } | |
0f9b7373 | 577 | else if (sRef_isField (s) ) |
578 | { | |
579 | fprintf(f, "sRef_dump %s\n", cstring_toCharsSafe(sRef_dump(s)) ); | |
580 | } | |
920a3797 | 581 | else |
582 | { | |
583 | u = sRef_getUentry(s); | |
6fcd0b1e | 584 | fprintf (f, "%s\n", cstring_toCharsSafe (uentry_rawName (u))); |
920a3797 | 585 | } |
586 | ||
587 | } | |
588 | break; | |
589 | ||
2a6e9c30 | 590 | case CTT_INTLITERAL: |
b9904f57 | 591 | fprintf (f, "%ld\n", t->value.intlit); |
920a3797 | 592 | break; |
593 | ||
594 | default: | |
595 | BADEXIT; | |
596 | } | |
597 | ||
598 | } | |
599 | ||
600 | ||
abd7f895 | 601 | /*@only@*/ constraintTerm constraintTerm_undump (FILE *f) |
920a3797 | 602 | { |
920a3797 | 603 | constraintTermType kind; |
604 | constraintTerm ret; | |
605 | ||
606 | uentry ue; | |
607 | ||
6970c11b | 608 | char *str; |
609 | char *os; | |
920a3797 | 610 | |
3be9a165 | 611 | os = mstring_create (MAX_DUMP_LINE_LENGTH); |
612 | ||
6970c11b | 613 | str = fgets (os, MAX_DUMP_LINE_LENGTH, f); |
920a3797 | 614 | |
abd7f895 | 615 | llassert (str != NULL); |
616 | ||
28bf4b0b | 617 | kind = (constraintTermType) reader_getInt(&str); |
920a3797 | 618 | str = fgets(os, MAX_DUMP_LINE_LENGTH, f); |
619 | ||
abd7f895 | 620 | llassert (str != NULL); |
621 | ||
920a3797 | 622 | switch (kind) |
623 | { | |
624 | ||
2a6e9c30 | 625 | case CTT_SREF: |
920a3797 | 626 | { |
627 | sRef s; | |
628 | char * term; | |
28bf4b0b | 629 | term = reader_getWord(&str); |
749f175a | 630 | |
631 | if (term == NULL) | |
632 | { | |
633 | llfatalbug (message ("Library file appears to be corrupted.") ); | |
634 | } | |
920a3797 | 635 | if (strcmp (term, "Result") == 0 ) |
636 | { | |
b072092f | 637 | s = sRef_makeResult (ctype_unknown); |
920a3797 | 638 | } |
639 | else if (strcmp (term, "Param" ) == 0 ) | |
640 | { | |
641 | int param; | |
642 | char *str2, *ostr2; | |
643 | ||
644 | ctype t; | |
645 | ||
28bf4b0b | 646 | reader_checkChar(&str, ' '); |
647 | str2 = reader_getWord(&str); | |
648 | param = reader_getInt(&str); | |
920a3797 | 649 | |
749f175a | 650 | if (str2 == NULL) |
651 | { | |
652 | llfatalbug (message ("Library file appears to be corrupted.") ); | |
653 | } | |
654 | ||
920a3797 | 655 | ostr2 = str2; |
656 | t = ctype_undump(&str2) ; | |
16c024b5 | 657 | s = sRef_makeParam (param, t, stateInfo_makeLoc (g_currentloc, SA_CREATED)); |
920a3797 | 658 | free (ostr2); |
659 | } | |
0f9b7373 | 660 | else if (strcmp (term, "sRef_dump" ) == 0 ) |
661 | { | |
662 | reader_checkChar(&str, ' '); | |
663 | s = sRef_undump (&str); | |
664 | } | |
b7b694d6 | 665 | else /* This must be an identified that we can search for in usymTab */ |
920a3797 | 666 | { |
28bf4b0b | 667 | cstring termStr = cstring_makeLiteralTemp(term); |
668 | ||
669 | ue = usymtab_lookup (termStr); | |
920a3797 | 670 | s = uentry_getSref(ue); |
671 | } | |
672 | ||
673 | ret = constraintTerm_makesRef(s); | |
674 | ||
675 | free(term); | |
676 | } | |
677 | break; | |
678 | ||
2a6e9c30 | 679 | case CTT_EXPR: |
920a3797 | 680 | { |
681 | sRef s; | |
682 | char * term; | |
28bf4b0b | 683 | cstring termStr; |
920a3797 | 684 | |
28bf4b0b | 685 | term = reader_getWord(&str); |
749f175a | 686 | |
687 | if (term == NULL) | |
688 | { | |
689 | llfatalbug (message ("Library file appears to be corrupted.") ); | |
690 | } | |
691 | ||
b7b694d6 | 692 | /* This must be an identifier that we can search for in usymTab */ |
28bf4b0b | 693 | termStr = cstring_makeLiteralTemp(term); |
920a3797 | 694 | |
28bf4b0b | 695 | ue = usymtab_lookup (termStr); |
920a3797 | 696 | s = uentry_getSref(ue); |
697 | ret = constraintTerm_makesRef(s); | |
698 | ||
699 | free (term); | |
700 | } | |
701 | break; | |
702 | ||
703 | ||
2a6e9c30 | 704 | case CTT_INTLITERAL: |
920a3797 | 705 | { |
706 | int i; | |
707 | ||
28bf4b0b | 708 | i = reader_getInt(&str); |
920a3797 | 709 | ret = constraintTerm_makeIntLiteral (i); |
710 | } | |
711 | break; | |
712 | ||
713 | default: | |
714 | BADEXIT; | |
715 | } | |
716 | free (os); | |
717 | ||
718 | return ret; | |
719 | } | |
720 | ||
721 | ||
722 | ||
86d93ed3 | 723 | /* drl added sometime before 10/17/001*/ |
724 | ctype constraintTerm_getCType (constraintTerm term) | |
725 | { | |
726 | ctype ct; | |
727 | ||
728 | switch (term->kind) | |
729 | { | |
2a6e9c30 | 730 | case CTT_EXPR: |
86d93ed3 | 731 | ct = exprNode_getType (term->value.expr); |
732 | break; | |
733 | ||
2a6e9c30 | 734 | case CTT_INTLITERAL: |
86d93ed3 | 735 | /*@i888*/ /* hack */ |
736 | ct = ctype_signedintegral; | |
737 | break; | |
738 | ||
2a6e9c30 | 739 | case CTT_SREF: |
86d93ed3 | 740 | ct = sRef_getType (term->value.sref) ; |
741 | break; | |
742 | default: | |
743 | BADEXIT; | |
744 | } | |
745 | return ct; | |
746 | } | |
920a3797 | 747 | |
fba0ed37 | 748 | bool constraintTerm_isConstantOnly (constraintTerm term) |
749 | { | |
750 | switch (term->kind) | |
751 | { | |
2a6e9c30 | 752 | case CTT_EXPR: |
fba0ed37 | 753 | if (exprNode_isNumLiteral (term->value.expr) || |
754 | exprNode_isStringLiteral (term->value.expr) || | |
755 | exprNode_isCharLiteral (term->value.expr) ) | |
756 | { | |
757 | return TRUE; | |
758 | } | |
759 | else | |
760 | { | |
761 | return FALSE; | |
762 | } | |
763 | ||
2a6e9c30 | 764 | case CTT_INTLITERAL: |
fba0ed37 | 765 | return TRUE; |
766 | ||
2a6e9c30 | 767 | case CTT_SREF: |
fba0ed37 | 768 | if ( sRef_isConst (term->value.sref) ) |
769 | { | |
770 | return TRUE; | |
771 | } | |
772 | else | |
773 | { | |
774 | return FALSE; | |
775 | } | |
776 | default: | |
777 | BADEXIT; | |
778 | } | |
779 | ||
780 | BADEXIT; | |
781 | } |