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885824d3 | 1 | /* ;-*-C-*-; |
1b8ae690 | 2 | ** Splint - annotation-assisted static program checker |
3 | ** Copyright (C) 1994-2002 University of Virginia, | |
4 | ** Massachusetts Institute of Technology | |
885824d3 | 5 | ** |
1b8ae690 | 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. | |
885824d3 | 19 | ** |
1b8ae690 | 20 | ** For information on splint: splint@cs.virginia.edu |
21 | ** To report a bug: splint-bug@cs.virginia.edu | |
22 | ** For more information: http://www.splint.org | |
885824d3 | 23 | */ |
24 | /* | |
25 | ** ctbase.i | |
26 | ** | |
27 | ** NOTE: This is not a stand-alone source file, but is included in ctype.c. | |
28bf4b0b | 28 | ** (This is necessary because there is no other way in C to have a |
885824d3 | 29 | ** hidden scope, besides at the file level.) |
30 | */ | |
31 | ||
32 | /*@access cprim*/ | |
33 | ||
28bf4b0b | 34 | abst_typedef /*@null@*/ struct s_ctbase *ctbase; |
885824d3 | 35 | |
28bf4b0b | 36 | /*@private@*/ typedef struct { |
885824d3 | 37 | ctkind kind; |
28bf4b0b | 38 | ctbase ctbase; |
885824d3 | 39 | ctype base; /* type I point to (or element of array) */ |
40 | ctype ptr; /* type of pointer to me */ | |
41 | ctype array; /* type of array of me */ | |
42 | cstring unparse; /* unparse me, if memoized */ | |
43 | } *ctentry ; | |
44 | ||
45 | typedef /*@only@*/ ctentry o_ctentry; | |
46 | ||
28bf4b0b | 47 | typedef struct { |
885824d3 | 48 | int size; |
49 | int nspace; | |
50 | /*@relnull@*/ /*@only@*/ o_ctentry *entries; | |
51 | /* memoize matches...maybe in context? */ | |
52 | } cttable ; | |
53 | ||
54 | extern bool ctentry_isBogus (/*@sef@*/ ctentry p_c) /*@*/; | |
55 | # define ctentry_isBogus(c) \ | |
56 | ((c)->kind == CTK_INVALID || (c)->kind == CTK_DNE) | |
57 | ||
58 | static cttable cttab = { 0, 0, NULL }; | |
59 | ||
60 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createAbstract (typeId p_u); | |
61 | static /*@observer@*/ cstring ctentry_doUnparse (ctentry p_c) /*@modifies p_c@*/; | |
62 | static /*@only@*/ ctentry | |
63 | ctentry_make (ctkind p_ctk, /*@keep@*/ ctbase p_c, ctype p_base, | |
64 | ctype p_ptr, ctype p_array, /*@keep@*/ cstring p_unparse); | |
65 | static /*@only@*/ ctentry ctentry_makeNew (ctkind p_ctk, /*@only@*/ ctbase p_c); | |
66 | static /*@only@*/ cstring ctentry_unparse (ctentry p_c) /*@*/ ; | |
67 | ||
68 | static void cttable_grow (void); | |
69 | static ctype cttable_addDerived (ctkind p_ctk, /*@keep@*/ ctbase p_cnew, ctype p_base); | |
70 | static ctype cttable_addFull (/*@keep@*/ ctentry p_cnew); | |
71 | static bool ctentry_isInteresting (ctentry p_c) /*@*/; | |
37ae0b5e | 72 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_makeFixedArray (ctype p_b, size_t p_size) /*@*/ ; |
d5047b91 | 73 | static bool ctbase_isAnytype (/*@notnull@*/ ctbase p_b) /*@*/ ; |
885824d3 | 74 | |
75 | /* | |
76 | ** These are file-static macros (used in ctype.c). No way to | |
77 | ** declare them as static in C. | |
78 | */ | |
79 | ||
80 | /*@-allmacros@*/ /*@-macrospec@*/ /*@-namechecks@*/ | |
81 | # define ctentry_getBase(c) ((c)->base) | |
82 | # define ctentry_getKind(c) ((c)->kind) | |
83 | # define ctentry_getArray(c) ((c)->array) | |
84 | # define ctentry_getPtr(c) ((c)->ptr) | |
85 | # define ctentry_isArray(c) ((c)->kind == CTK_ARRAY) | |
86 | # define ctentry_isComplex(c) ((c)->kind == CTK_COMPLEX) | |
87 | # define ctentry_isPlain(c) ((c)->kind == CTK_PLAIN) | |
88 | # define ctentry_isPointer(c) ((c)->kind == CTK_PTR) | |
89 | # define ctentry_setArray(c,b) ((c)->array = (b)) | |
90 | # define ctentry_setPtr(c,b) ((c)->ptr = (b)) | |
91 | ||
92 | # define ctbase_fixUser(c) (c = ctbase_realType(c)) | |
93 | /*@=allmacros@*/ /*@=macrospec@*/ /*@=namechecks@*/ | |
94 | ||
95 | static ctype cttable_addComplex (/*@notnull@*/ /*@only@*/ ctbase p_cnew); | |
96 | static /*@observer@*/ ctbase ctype_getCtbase (ctype p_c) /*@*/ ; | |
97 | static ctype ctype_makeConjAux (ctype p_c1, ctype p_c2, bool p_isExplicit) /*@*/ ; | |
98 | static /*@notnull@*/ /*@observer@*/ ctbase ctype_getCtbaseSafe (ctype p_c) /*@*/ ; | |
99 | static /*@observer@*/ ctentry ctype_getCtentry (ctype p_c) /*@*/ ; | |
100 | static /*@observer@*/ /*@notnull@*/ ctbase | |
101 | ctbase_realType (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
102 | static bool ctbase_isPointer (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
103 | static bool ctbase_isEitherArray (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
104 | static /*@observer@*/ enumNameList ctbase_elist (ctbase p_c) /*@*/ ; | |
105 | static /*@only@*/ cstring ctbase_unparse (ctbase p_c) /*@*/ ; | |
106 | static /*@only@*/ cstring ctbase_unparseDeep (ctbase p_c) /*@*/ ; | |
107 | static /*@only@*/ /*@notnull@*/ ctbase ctbase_copy (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
108 | static void ctbase_free (/*@only@*/ ctbase p_c); | |
109 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createPrim (cprim p_p) /*@*/ ; | |
110 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createBool (void) /*@*/ ; | |
111 | static /*@notnull@*/ /*@observer@*/ ctbase ctbase_getBool (void) /*@*/ ; | |
112 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createUser (typeId p_u) /*@*/ ; | |
113 | ||
114 | static /*@notnull@*/ /*@only@*/ ctbase | |
115 | ctbase_createStruct (/*@only@*/ cstring p_n, /*@only@*/ uentryList p_f); | |
116 | ||
117 | static /*@notnull@*/ /*@only@*/ ctbase | |
118 | ctbase_createUnion (/*@keep@*/ cstring p_n, /*@only@*/ uentryList p_f); | |
119 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createEnum (/*@keep@*/ cstring p_etag, /*@keep@*/ enumNameList p_emembers); | |
120 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_createUnknown (void); | |
121 | static bool ctbase_match (ctbase p_c1, ctbase p_c2) /*@modifies nothing@*/; | |
122 | static bool ctbase_matchDef (ctbase p_c1, ctbase p_c2) /*@modifies nothing@*/; | |
a0a162cd | 123 | static bool ctbase_genMatch (ctbase p_c1, ctbase p_c2, bool p_force, bool p_arg, bool p_def, bool p_deep); |
885824d3 | 124 | static bool ctbase_isAbstract (/*@notnull@*/ ctbase p_c) /*@*/ ; |
125 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_makePointer (ctype p_b) /*@*/ ; | |
126 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_makeArray (ctype p_b) /*@*/ ; | |
127 | static /*@notnull@*/ ctype | |
128 | ctbase_makeFunction (ctype p_b, /*@only@*/ uentryList p_p) /*@*/ ; | |
885824d3 | 129 | static /*@notnull@*/ /*@observer@*/ ctbase |
130 | ctbase_realFunction (/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
131 | static ctype ctbase_baseArrayPtr (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
132 | static ctype ctbase_baseFunction (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
133 | static /*@observer@*/ uentryList ctbase_argsFunction (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
134 | static /*@observer@*/ uentryList ctbase_getuentryList (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
135 | static ctype ctbase_newBase (ctype p_c, ctype p_p) /*@*/ ; | |
136 | static ctype ctbase_newBaseExpFcn (ctype p_c, ctype p_p) /*@*/ ; | |
137 | static bool ctbase_isFixedArray (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
138 | ||
139 | /*@-macroundef@*/ | |
140 | extern int cttable_lastIndex(); | |
141 | # define cttable_lastIndex() (cttab.size - 1) | |
142 | /*@=macroundef@*/ | |
143 | ||
28bf4b0b | 144 | typedef struct |
885824d3 | 145 | { |
146 | ctype rval; | |
28bf4b0b | 147 | /*@only@*/ uentryList params; |
885824d3 | 148 | } *cfcn; |
149 | ||
28bf4b0b | 150 | typedef struct |
885824d3 | 151 | { |
152 | cstring name; | |
153 | uentryList fields; | |
154 | } *tsu; | |
155 | ||
28bf4b0b | 156 | typedef struct |
885824d3 | 157 | { |
158 | ctype a; | |
159 | ctype b; | |
160 | bool isExplicit; | |
161 | } *tconj; | |
162 | ||
28bf4b0b | 163 | typedef struct |
885824d3 | 164 | { |
165 | cstring tag; | |
166 | enumNameList members; | |
167 | } *tenum; | |
168 | ||
28bf4b0b | 169 | typedef struct |
885824d3 | 170 | { |
171 | ctype base; | |
37ae0b5e | 172 | size_t size; |
885824d3 | 173 | } *tfixed; |
174 | ||
28bf4b0b | 175 | typedef union |
885824d3 | 176 | { |
177 | cprim prim; /* primitive */ | |
178 | typeId tid; /* abstract, user */ | |
179 | ctype base; /* ptr, array */ | |
180 | cfcn fcn; /* function */ | |
181 | tsu su; /* struct union */ | |
182 | tenum cenum; /* enum */ | |
183 | tconj conj; /* conj */ | |
184 | tfixed farray; /* fixed array */ | |
185 | } uconts; | |
186 | ||
28bf4b0b | 187 | struct s_ctbase |
885824d3 | 188 | { |
189 | ctuid type; | |
190 | uconts contents; | |
191 | } ; | |
192 | ||
193 | static /*@falsenull@*/ bool ctbase_isUA (ctbase p_c) /*@*/ ; | |
194 | static bool ctbase_isBaseUA(ctbase p_c) /*@*/ ; | |
195 | static typeId ctbase_typeBaseUid(ctbase p_c) /*@*/ ; | |
196 | static bool ctbase_isKind (/*@notnull@*/ ctbase p_c, ctuid p_kind) /*@*/ ; | |
197 | static bool ctbase_isKind2 (/*@notnull@*/ ctbase p_c, ctuid p_kind1, ctuid p_kind2) /*@*/ ; | |
198 | static /*@only@*/ /*@notnull@*/ ctbase | |
199 | ctbase_getBaseType (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
200 | ||
201 | static /*@falsenull@*/ bool ctbase_isFunction(ctbase p_c) /*@*/ ; | |
202 | ||
203 | /*@constant null ctbase ctbase_undefined; @*/ | |
204 | # define ctbase_undefined ((ctbase)0) | |
205 | ||
206 | static /*@owned@*/ ctbase ctbase_bool = ctbase_undefined; | |
207 | static /*@owned@*/ ctbase ctbase_unknown = ctbase_undefined; | |
208 | ||
209 | static /*@falsenull@*/ bool ctbase_isDefined (ctbase c) /*@*/ | |
210 | { | |
211 | return ((c) != ctbase_undefined); | |
212 | } | |
213 | ||
214 | static /*@truenull@*/ bool ctbase_isUndefined (ctbase c) | |
215 | { | |
216 | return ((c) == ctbase_undefined); | |
217 | } | |
218 | ||
219 | static ctkind ctype_getCtKind (ctype c) | |
220 | { | |
221 | ctentry ce = ctype_getCtentry (c); | |
222 | ||
223 | return ctentry_getKind (ce); | |
224 | } | |
225 | ||
226 | static bool ctbase_isUser (ctbase c) | |
227 | { | |
228 | if (ctbase_isDefined (c)) | |
229 | { | |
230 | return (ctbase_isKind (c, CT_USER)); | |
231 | } | |
232 | else | |
233 | { | |
234 | return FALSE; | |
235 | } | |
236 | } | |
237 | ||
238 | static bool ctbase_isEnum (ctbase c) | |
239 | { | |
240 | if (ctbase_isDefined (c)) | |
241 | { | |
242 | return (ctbase_isKind (c, CT_ENUM)); | |
243 | } | |
244 | else | |
245 | { | |
246 | return FALSE; | |
247 | } | |
248 | } | |
249 | ||
250 | static bool ctbase_isExpFcn (ctbase c) | |
251 | { | |
252 | if (ctbase_isDefined (c)) | |
253 | { | |
254 | return (c->type == CT_EXPFCN); | |
255 | } | |
256 | else | |
257 | { | |
258 | return FALSE; | |
259 | } | |
260 | } | |
261 | ||
262 | static /*@falsenull@*/ bool ctbase_isConj (ctbase c) | |
263 | { | |
264 | if (ctbase_isDefined (c)) | |
265 | { | |
266 | return (c->type == CT_CONJ); | |
267 | } | |
268 | else | |
269 | { | |
270 | return FALSE; | |
271 | } | |
272 | } | |
273 | ||
274 | static bool ctuid_isAP (ctuid c) /*@*/ | |
275 | { | |
276 | return (c == CT_ARRAY || c == CT_PTR); | |
277 | } | |
278 | ||
279 | static typeId ctbase_typeId (ctbase p_c); | |
280 | static /*@only@*/ cstring ctbase_dump (ctbase p_c); | |
86d93ed3 | 281 | static /*@only@*/ ctbase ctbase_undump (char **p_c) /*@requires maxRead(*p_c) >= 2 @*/; |
885824d3 | 282 | static int ctbase_compare (ctbase p_c1, ctbase p_c2, bool p_strict); |
283 | static bool ctbase_matchArg (ctbase p_c1, ctbase p_c2); | |
284 | static /*@notnull@*/ /*@only@*/ ctbase | |
285 | ctbase_makeConj (ctype p_c1, ctype p_c2, bool p_isExplicit) /*@*/ ; | |
286 | static ctype ctbase_getConjA (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
287 | static ctype ctbase_getConjB (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
288 | static bool ctbase_isExplicitConj (/*@notnull@*/ ctbase p_c) /*@*/ ; | |
a0a162cd | 289 | static bool ctbase_forceMatch (ctbase p_c1, ctbase p_c2) /*@modifies p_c1, p_c2@*/ ; |
885824d3 | 290 | static /*@notnull@*/ /*@only@*/ ctbase ctbase_expectFunction (ctype p_c); |
291 | static bool ctbase_isVoidPointer(/*@notnull@*/ /*@dependent@*/ ctbase p_c) /*@*/ ; | |
28bf4b0b | 292 | static bool ctbase_isUnion (/*@notnull@*/ /*@temp@*/ ctbase p_c) /*@*/ ; |
293 | static bool ctbase_isStruct (/*@notnull@*/ /*@temp@*/ ctbase p_c) /*@*/ ; | |
885824d3 | 294 | static /*@observer@*/ cstring ctbase_enumTag (/*@notnull@*/ ctbase p_ct) /*@*/ ; |
295 | static /*@only@*/ cstring ctbase_unparseNotypes (ctbase p_c) /*@*/ ; | |
296 | ||
297 | static /*@out@*/ /*@notnull@*/ /*@only@*/ ctbase ctbase_new (void) /*@*/ ; | |
298 | static int nctbases = 0; | |
299 | ||
300 | static /*@notnull@*/ /*@only@*/ | |
28bf4b0b | 301 | ctbase ctbase_makeLiveFunction (ctype p_b, /*@only@*/ uentryList p_p); |
302 | ||
303 | static bool ctbase_isUnnamedSU (ctbase c) | |
304 | { | |
305 | return (ctbase_isDefined (c) | |
306 | && (ctbase_isStruct (c) || ctbase_isUnion (c)) | |
307 | && isFakeTag (c->contents.su->name)); | |
308 | } | |
885824d3 | 309 | |
310 | static /*@observer@*/ ctbase ctbase_realType (ctbase c) | |
311 | { | |
312 | if (ctbase_isUA (c)) | |
313 | { | |
314 | typeId uid = ctbase_typeId (c); | |
315 | ||
316 | if (usymtab_isBoolType (uid)) | |
317 | { | |
318 | return ctbase_getBool (); | |
319 | } | |
320 | else | |
321 | { | |
322 | ctbase ret = ctype_getCtbase | |
323 | (uentry_getRealType (usymtab_getTypeEntry (ctbase_typeId (c)))); | |
324 | ||
325 | llassert (ret != ctbase_undefined); | |
326 | return ret; | |
327 | } | |
328 | } | |
329 | else | |
330 | { | |
331 | return c; | |
332 | } | |
333 | } | |
334 | ||
335 | static bool | |
336 | ctbase_isVoidPointer (/*@dependent@*/ /*@notnull@*/ ctbase c) | |
337 | { | |
338 | ctbase r = ctbase_realType (c); | |
339 | ||
340 | return (ctbase_isKind (r, CT_PTR) && | |
341 | ctype_isVoid (r->contents.base)); | |
342 | } | |
343 | ||
344 | static bool | |
345 | ctbase_isPointer (/*@notnull@*/ /*@dependent@*/ ctbase c) | |
346 | { | |
347 | ctbase r = ctbase_realType (c); | |
348 | ||
349 | return (ctbase_isKind (r, CT_PTR)); | |
350 | } | |
351 | ||
352 | static bool | |
353 | ctbase_isEitherArray (/*@notnull@*/ ctbase c) | |
354 | { | |
355 | ctbase r = ctbase_realType (c); | |
356 | ||
357 | return (ctbase_isKind (r, CT_ARRAY) | |
358 | || ctbase_isKind (r, CT_FIXEDARRAY)); | |
359 | } | |
360 | ||
361 | static bool | |
362 | ctbase_isFixedArray (/*@notnull@*/ ctbase c) | |
363 | { | |
364 | ctbase r = ctbase_realType (c); | |
365 | ||
366 | return (ctbase_isKind (r, CT_FIXEDARRAY)); | |
367 | } | |
368 | ||
369 | static bool | |
370 | ctbase_isStruct (/*@notnull@*/ ctbase c) | |
371 | { | |
372 | ctbase r = ctbase_realType (c); | |
373 | ||
374 | return (ctbase_isKind (r, CT_STRUCT)); | |
375 | } | |
376 | ||
377 | static bool | |
28bf4b0b | 378 | ctbase_isUnion (/*@notnull@*/ ctbase c) |
885824d3 | 379 | { |
380 | ctbase r = ctbase_realType (c); | |
381 | ||
382 | return (ctbase_isKind (r, CT_UNION)); | |
383 | } | |
384 | ||
385 | /* | |
386 | ** clean this up -> typeTable should store ctype | |
387 | */ | |
388 | ||
389 | static typeId | |
390 | ctbase_typeBaseUid (ctbase c) | |
391 | { | |
392 | ctuid ct; | |
393 | ||
394 | if (ctbase_isDefined (c)) | |
395 | { | |
396 | ct = c->type; | |
397 | ||
398 | if (ctuid_isAP (ct)) | |
399 | { | |
400 | return ctbase_typeBaseUid (ctype_getCtbase (c->contents.base)); | |
401 | } | |
402 | else if (ct == CT_USER || ct == CT_ABST) | |
403 | { | |
404 | return c->contents.tid; | |
405 | } | |
406 | else if (ct == CT_FIXEDARRAY) | |
407 | { | |
408 | return ctbase_typeBaseUid (ctype_getCtbase (c->contents.farray->base)); | |
409 | } | |
410 | else | |
411 | { | |
412 | llcontbuglit ("ctbase_typeBaseUid: bad call"); | |
413 | return typeId_invalid; | |
414 | } | |
415 | } | |
416 | return typeId_invalid; | |
417 | } | |
418 | ||
419 | static bool | |
420 | ctbase_isBaseUA (ctbase c) | |
421 | { | |
422 | ctuid ct; | |
423 | ||
424 | if (ctbase_isDefined (c)) | |
425 | { | |
426 | ct = c->type; | |
427 | ||
428 | if (ctuid_isAP (ct)) | |
429 | { | |
430 | return ctbase_isBaseUA (ctype_getCtbase (c->contents.base)); | |
431 | } | |
432 | else if (ct == CT_FIXEDARRAY) | |
433 | { | |
434 | return ctbase_isBaseUA (ctype_getCtbase (c->contents.farray->base)); | |
435 | } | |
436 | else | |
437 | return (ct == CT_USER || ct == CT_ABST); | |
438 | } | |
439 | return FALSE; | |
440 | } | |
441 | ||
442 | static typeId | |
443 | ctbase_typeId (ctbase c) | |
444 | { | |
445 | if (ctbase_isUA (c)) | |
446 | { | |
447 | return c->contents.tid; | |
448 | } | |
449 | else | |
450 | { | |
28bf4b0b | 451 | if (ctbase_isConj (c)) |
452 | { | |
453 | return ctbase_typeId (ctype_getCtbase (ctbase_getConjA (c))); | |
454 | } | |
455 | else | |
456 | { | |
457 | llcontbug (message ("ctbase_typeId: bad call: %q", ctbase_unparse (c))); | |
458 | return typeId_invalid; | |
459 | } | |
885824d3 | 460 | } |
461 | } | |
462 | ||
463 | static /*@only@*/ cstring | |
464 | ctbase_unparse (ctbase c) | |
465 | { | |
466 | if (ctbase_isUndefined (c)) { | |
467 | return cstring_makeLiteral ("<<undef>>"); | |
468 | } | |
469 | ||
470 | switch (c->type) | |
471 | { | |
472 | case CT_UNKNOWN: | |
473 | return cstring_makeLiteral ("?"); | |
474 | case CT_BOOL: | |
475 | return cstring_copy (context_printBoolName ()); | |
476 | case CT_PRIM: | |
477 | return (cprim_unparse (c->contents.prim)); | |
478 | case CT_USER: | |
479 | return (usymtab_getTypeEntryName (c->contents.tid)); | |
480 | case CT_ABST: | |
481 | return (usymtab_getTypeEntryName (c->contents.tid)); | |
482 | case CT_EXPFCN: | |
483 | return (message ("<expf: %t>", c->contents.base)); | |
484 | case CT_PTR: | |
485 | /* no spaces for multiple pointers */ | |
486 | ||
487 | if (ctype_isPointer (c->contents.base)) | |
488 | { | |
489 | return (cstring_appendChar (cstring_copy (ctype_unparse (c->contents.base)), '*')); | |
490 | } | |
491 | else | |
492 | { | |
493 | return (message ("%t *", c->contents.base)); | |
494 | } | |
495 | case CT_FIXEDARRAY: | |
077d4458 | 496 | return (message ("%t [%d]", |
497 | c->contents.farray->base, | |
885824d3 | 498 | (int) c->contents.farray->size)); |
499 | case CT_ARRAY: | |
500 | return (message ("%t []", c->contents.base)); | |
501 | case CT_FCN: | |
502 | return (message ("[function (%q) returns %t]", | |
503 | uentryList_unparseParams (c->contents.fcn->params), | |
504 | c->contents.fcn->rval)); | |
505 | case CT_STRUCT: | |
506 | if (cstring_isDefined (c->contents.su->name) && | |
507 | !cstring_isEmpty (c->contents.su->name) && | |
508 | !isFakeTag (c->contents.su->name)) | |
509 | { | |
510 | return (message ("struct %s", c->contents.su->name)); | |
511 | } | |
512 | else | |
513 | { | |
28bf4b0b | 514 | return (message ("struct { %q }", |
515 | uentryList_unparseAbbrev (c->contents.su->fields))); | |
885824d3 | 516 | } |
517 | case CT_UNION: | |
518 | if (cstring_isDefined (c->contents.su->name) && | |
519 | !cstring_isEmpty (c->contents.su->name) && | |
520 | !isFakeTag (c->contents.su->name)) | |
521 | { | |
522 | return (message ("union %s", c->contents.su->name)); | |
523 | } | |
524 | else | |
525 | { | |
526 | return (message ("union { %q }", | |
527 | uentryList_unparseAbbrev (c->contents.su->fields))); | |
528 | } | |
529 | case CT_ENUM: | |
530 | if (isFakeTag (c->contents.cenum->tag)) | |
531 | { | |
532 | return (message ("enum { %q }", | |
533 | enumNameList_unparseBrief (c->contents.cenum->members))); | |
534 | } | |
535 | else | |
536 | { | |
537 | return (message ("enum %s { %q }", | |
538 | c->contents.cenum->tag, | |
539 | enumNameList_unparseBrief (c->contents.cenum->members))); | |
540 | } | |
541 | case CT_CONJ: | |
d5047b91 | 542 | if (ctbase_isAnytype (c)) |
543 | { | |
544 | return (cstring_makeLiteral ("<any>")); | |
545 | } | |
546 | else if (c->contents.conj->isExplicit || context_getFlag (FLG_SHOWALLCONJS)) | |
885824d3 | 547 | { |
548 | if (!ctype_isSimple (c->contents.conj->a) || | |
549 | !ctype_isSimple (c->contents.conj->b)) | |
550 | { | |
551 | return (message ("<%t> | <%t>", c->contents.conj->a, c->contents.conj->b)); | |
552 | } | |
553 | else | |
554 | { | |
555 | return (message ("%t | %t", c->contents.conj->a, c->contents.conj->b)); | |
556 | } | |
557 | } | |
558 | else | |
559 | { | |
560 | return (cstring_copy (ctype_unparse (c->contents.conj->a))); | |
561 | } | |
562 | BADDEFAULT; | |
563 | } | |
564 | BADEXIT; | |
565 | } | |
566 | ||
567 | static /*@only@*/ cstring | |
568 | ctbase_unparseDeep (ctbase c) | |
569 | { | |
570 | if (ctbase_isUndefined (c)) | |
571 | { | |
572 | return cstring_makeLiteral ("<<undef>>"); | |
573 | } | |
574 | ||
575 | switch (c->type) | |
576 | { | |
577 | case CT_UNKNOWN: | |
578 | return cstring_makeLiteral ("?"); | |
579 | case CT_BOOL: | |
580 | return cstring_copy (context_printBoolName ()); | |
581 | case CT_PRIM: | |
582 | return (cprim_unparse (c->contents.prim)); | |
583 | case CT_ENUM: | |
584 | if (cstring_isNonEmpty (c->contents.cenum->tag)) | |
585 | { | |
586 | return (message ("enum %s { %q }", | |
587 | c->contents.cenum->tag, | |
588 | enumNameList_unparse (c->contents.cenum->members))); | |
589 | } | |
590 | else | |
591 | { | |
592 | return (message ("enum { %q }", | |
593 | enumNameList_unparse (c->contents.cenum->members))); | |
594 | } | |
595 | case CT_USER: | |
596 | return (usymtab_getTypeEntryName (c->contents.tid)); | |
597 | case CT_ABST: | |
598 | return (usymtab_getTypeEntryName (c->contents.tid)); | |
599 | case CT_EXPFCN: | |
600 | return (message ("<expf: %t>", c->contents.base)); | |
601 | case CT_PTR: | |
602 | return (message ("%t *", c->contents.base)); | |
603 | case CT_FIXEDARRAY: | |
604 | return (message ("%t [%d]", c->contents.farray->base, | |
605 | (int) c->contents.farray->size)); | |
606 | case CT_ARRAY: | |
607 | return (message ("%t []", c->contents.base)); | |
608 | case CT_FCN: | |
609 | return (message ("[function (%q) returns %t]", | |
610 | uentryList_unparse (c->contents.fcn->params), | |
611 | c->contents.fcn->rval)); | |
612 | case CT_STRUCT: | |
613 | return (message ("struct %s { ... } ", c->contents.su->name)); | |
614 | case CT_UNION: | |
615 | return (message ("union %s { ... }", c->contents.su->name)); | |
616 | case CT_CONJ: | |
d5047b91 | 617 | if (ctbase_isAnytype (c)) |
618 | { | |
619 | return (cstring_makeLiteral ("<any>")); | |
620 | } | |
621 | else | |
622 | { | |
623 | return (message ("%t", c->contents.conj->a)); | |
624 | } | |
885824d3 | 625 | BADDEFAULT; |
626 | } | |
627 | BADEXIT; | |
628 | } | |
629 | ||
630 | static /*@only@*/ cstring | |
631 | ctbase_unparseNotypes (ctbase c) | |
632 | { | |
633 | llassert (ctbase_isDefined (c)); | |
634 | ||
635 | switch (c->type) | |
636 | { | |
637 | case CT_UNKNOWN: | |
638 | return cstring_makeLiteral ("?"); | |
639 | case CT_BOOL: | |
640 | return cstring_copy (context_printBoolName ()); | |
641 | case CT_PRIM: | |
642 | return (cprim_unparse (c->contents.prim)); | |
643 | case CT_ENUM: | |
644 | if (typeId_isInvalid (c->contents.tid)) | |
645 | { | |
646 | return cstring_makeLiteral ("enum"); | |
647 | } | |
648 | else | |
649 | { | |
650 | return (message ("T#%d", c->contents.tid)); | |
651 | } | |
652 | case CT_USER: | |
653 | return (message ("uT#%d", c->contents.tid)); | |
654 | case CT_ABST: | |
655 | return (message ("aT#%d", c->contents.tid)); | |
656 | case CT_EXPFCN: | |
657 | return (message ("<expf: %q >", ctbase_unparseNotypes (ctype_getCtbase (c->contents.base)))); | |
658 | case CT_PTR: | |
659 | return (message ("%q *", ctbase_unparseNotypes (ctype_getCtbase (c->contents.base)))); | |
660 | case CT_ARRAY: | |
661 | return (message ("%q []", ctbase_unparseNotypes (ctype_getCtbase (c->contents.base)))); | |
662 | case CT_FCN: | |
663 | return (message ("[function (%d) returns %q]", uentryList_size (c->contents.fcn->params), | |
664 | ctbase_unparseNotypes (ctype_getCtbase (c->contents.fcn->rval)))); | |
665 | case CT_STRUCT: | |
666 | return (message ("struct %s", c->contents.su->name)); | |
667 | case CT_UNION: | |
668 | return (message ("union %s", c->contents.su->name)); | |
669 | case CT_ENUMLIST: | |
670 | return (message ("[enumlist]")); | |
671 | case CT_CONJ: | |
d5047b91 | 672 | if (ctbase_isAnytype (c)) |
673 | { | |
674 | return (cstring_makeLiteral ("<any>")); | |
675 | } | |
676 | else | |
677 | { | |
678 | return (message ("%q/%q", | |
679 | ctbase_unparseNotypes (ctype_getCtbase (c->contents.conj->a)), | |
680 | ctbase_unparseNotypes (ctype_getCtbase (c->contents.conj->b)))); | |
681 | } | |
885824d3 | 682 | BADDEFAULT; |
683 | } | |
684 | BADEXIT; | |
685 | } | |
686 | ||
687 | static /*@only@*/ cstring | |
688 | ctbase_unparseDeclaration (ctbase c, /*@only@*/ cstring name) /*@*/ | |
689 | { | |
690 | if (ctbase_isUndefined (c)) | |
691 | { | |
692 | return name; | |
693 | } | |
694 | ||
695 | switch (c->type) | |
696 | { | |
697 | case CT_UNKNOWN: | |
698 | return (message ("? %q", name)); | |
699 | case CT_BOOL: | |
700 | return (message ("%s %q", context_printBoolName (), name)); | |
701 | case CT_PRIM: | |
702 | return (message ("%q %q", cprim_unparse (c->contents.prim), name)); | |
703 | case CT_USER: | |
704 | case CT_ABST: | |
705 | return (message ("%q %q", usymtab_getTypeEntryName (c->contents.tid), name)); | |
706 | case CT_EXPFCN: | |
707 | llcontbuglit ("ctbase_unparseDeclaration: expfcn"); | |
708 | return name; | |
709 | case CT_PTR: | |
710 | if (ctype_isFunction (c->contents.base)) | |
711 | { | |
712 | return ctbase_unparseDeclaration (ctype_getCtbase (c->contents.base), name); | |
713 | } | |
714 | else | |
715 | { | |
716 | cstring s = cstring_prependChar ('*', name); | |
717 | cstring ret = ctbase_unparseDeclaration (ctype_getCtbase (c->contents.base), s); | |
718 | cstring_free (name); | |
719 | return (ret); | |
720 | } | |
721 | case CT_FIXEDARRAY: | |
722 | return (message ("%q[%d]", | |
723 | ctbase_unparseDeclaration (ctype_getCtbase (c->contents.farray->base), name), | |
724 | (int) c->contents.farray->size)); | |
725 | case CT_ARRAY: | |
726 | return (message ("%q[]", | |
727 | ctbase_unparseDeclaration (ctype_getCtbase (c->contents.base), name))); | |
728 | case CT_FCN: | |
729 | { | |
730 | cstring s = message ("%q(%q)", name, | |
731 | uentryList_unparseParams (c->contents.fcn->params)); | |
732 | ||
733 | return (ctbase_unparseDeclaration | |
734 | (ctype_getCtbase (c->contents.fcn->rval), s)); | |
735 | } | |
736 | case CT_STRUCT: | |
737 | if (cstring_isDefined (c->contents.su->name) && | |
738 | !cstring_isEmpty (c->contents.su->name) && | |
739 | !isFakeTag (c->contents.su->name)) | |
740 | { | |
741 | return (message ("struct %s %q", c->contents.su->name, name)); | |
742 | } | |
743 | else | |
744 | { | |
745 | return (message ("struct { %q } %q", | |
746 | uentryList_unparseAbbrev (c->contents.su->fields), | |
747 | name)); | |
748 | } | |
749 | case CT_UNION: | |
750 | if (cstring_isDefined (c->contents.su->name) && | |
751 | !cstring_isEmpty (c->contents.su->name) && | |
752 | !isFakeTag (c->contents.su->name)) | |
753 | { | |
754 | return (message ("union %s %q", c->contents.su->name, name)); | |
755 | } | |
756 | else | |
757 | { | |
758 | return (message ("union { %q } %q", | |
759 | uentryList_unparseAbbrev (c->contents.su->fields), | |
760 | name)); | |
761 | } | |
762 | case CT_ENUM: | |
763 | if (isFakeTag (c->contents.cenum->tag)) | |
764 | { | |
765 | return (message ("enum { %q } %q", | |
766 | enumNameList_unparseBrief (c->contents.cenum->members), | |
767 | name)); | |
768 | } | |
769 | else | |
770 | { | |
771 | return (message ("enum %s { %q } %q", | |
772 | c->contents.cenum->tag, | |
773 | enumNameList_unparseBrief (c->contents.cenum->members), | |
774 | name)); | |
775 | } | |
d5047b91 | 776 | case CT_CONJ: |
777 | if (ctbase_isAnytype (c)) | |
778 | { | |
779 | return (message ("<any> %q", name)); | |
780 | } | |
781 | else if (c->contents.conj->isExplicit || context_getFlag (FLG_SHOWALLCONJS)) | |
885824d3 | 782 | { |
783 | if (!ctype_isSimple (c->contents.conj->a) || | |
784 | !ctype_isSimple (c->contents.conj->b)) | |
785 | { | |
786 | cstring name1 = cstring_copy (name); | |
787 | ||
788 | return | |
789 | (message | |
790 | ("<%q> | <%q>", | |
791 | ctbase_unparseDeclaration | |
792 | (ctype_getCtbase (c->contents.conj->a), name1), | |
793 | ctbase_unparseDeclaration | |
794 | (ctype_getCtbase (c->contents.conj->b), name))); | |
795 | } | |
796 | else | |
797 | { | |
798 | cstring s1 = ctbase_unparseDeclaration (ctype_getCtbase (c->contents.conj->a), | |
799 | cstring_copy (name)); | |
800 | return | |
801 | (message ("%q | %q", s1, | |
802 | ctbase_unparseDeclaration (ctype_getCtbase (c->contents.conj->b), | |
803 | name))); | |
804 | } | |
805 | } | |
806 | else | |
807 | { | |
808 | cstring_free (name); | |
809 | return (cstring_copy (ctype_unparse (c->contents.conj->a))); | |
810 | } | |
811 | BADDEFAULT; | |
812 | } | |
813 | BADEXIT; | |
814 | } | |
815 | ||
86d93ed3 | 816 | static ctbase ctbase_undump (d_char *c) /*@requires maxRead(*c) >= 2 @*/ |
885824d3 | 817 | { |
818 | ctbase res; | |
819 | char p = **c; | |
820 | ||
821 | (*c)++; | |
822 | ||
823 | switch (p) | |
824 | { | |
825 | case '?': | |
826 | return (ctbase_undefined); | |
827 | case 'u': | |
828 | return (ctbase_createUnknown ()); | |
829 | case 'b': | |
830 | return (ctbase_createBool ()); | |
831 | case 'p': | |
28bf4b0b | 832 | res = ctbase_createPrim (cprim_fromInt (reader_getInt (c))); |
833 | reader_checkChar (c, '|'); | |
885824d3 | 834 | return res; |
835 | case 's': | |
28bf4b0b | 836 | res = ctbase_createUser (typeId_fromInt (reader_getInt (c))); |
837 | reader_checkChar (c, '|'); | |
885824d3 | 838 | return res; |
839 | case 'a': | |
28bf4b0b | 840 | res = ctbase_createAbstract (typeId_fromInt (reader_getInt (c))); |
841 | reader_checkChar (c, '|'); | |
885824d3 | 842 | return res; |
843 | case 't': | |
844 | res = ctbase_makePointer (ctype_undump (c)); | |
28bf4b0b | 845 | reader_checkChar (c, '|'); |
885824d3 | 846 | return res; |
847 | case 'y': | |
848 | res = ctbase_makeArray (ctype_undump (c)); | |
28bf4b0b | 849 | reader_checkChar (c, '|'); |
885824d3 | 850 | return res; |
851 | case 'F': | |
852 | { | |
853 | ctype ct = ctype_undump (c); | |
37ae0b5e | 854 | size_t size; |
885824d3 | 855 | |
28bf4b0b | 856 | reader_checkChar (c, '/'); |
37ae0b5e | 857 | size = size_fromInt (reader_getInt (c)); |
28bf4b0b | 858 | reader_checkChar (c, '|'); |
885824d3 | 859 | return (ctbase_makeFixedArray (ct, size)); |
860 | } | |
861 | case 'f': | |
862 | { | |
863 | ctype ct; | |
864 | char *lp = strchr (*c, '('); | |
865 | ||
866 | llassertfatal (lp != NULL); | |
867 | ||
868 | *lp = '\0'; | |
869 | ct = ctype_undump (c); | |
870 | *c = lp + 1; | |
871 | ||
872 | return (ctbase_makeLiveFunction (ct, uentryList_undump (c))); | |
873 | } | |
874 | case 'S': | |
875 | { | |
876 | uentryList fields; | |
877 | ctbase ctb; | |
878 | char *sname; | |
879 | char *lc = strchr (*c, '{'); | |
880 | ||
881 | llassert (lc != NULL); | |
882 | *lc = '\0'; | |
883 | ||
884 | sname = mstring_copy (*c); | |
885 | ||
886 | *c = lc + 1; | |
887 | ||
888 | if (*sname == '!') | |
889 | { | |
890 | unsigned int i; | |
891 | ||
892 | i = (unsigned) atoi (sname + 1); | |
893 | ||
894 | setTagNo (i); | |
895 | } | |
896 | ||
897 | fields = uentryList_undumpFields (c, g_currentloc); | |
898 | ||
899 | ctb = ctbase_createStruct (cstring_fromCharsO (sname), fields); | |
900 | return ctb; | |
901 | } | |
902 | case 'U': | |
903 | { | |
904 | char *sname; | |
905 | char *lc = strchr (*c, '{'); | |
906 | ||
907 | llassert (lc != NULL); | |
908 | ||
909 | *lc = '\0'; | |
910 | sname = mstring_copy (*c); | |
911 | llassert (sname != NULL); | |
912 | ||
913 | *c = lc + 1; | |
914 | ||
915 | if (*sname == '!') | |
916 | { | |
917 | unsigned int i; | |
918 | ||
919 | i = (unsigned) atoi (sname + 1); | |
920 | setTagNo (i); | |
921 | } | |
922 | ||
923 | return (ctbase_createUnion (cstring_fromCharsO (sname), | |
924 | uentryList_undumpFields (c, g_currentloc))); | |
925 | } | |
926 | case 'e': | |
927 | { | |
928 | ctbase ret; | |
929 | char *sname; | |
930 | char *lc = strchr (*c, '{'); | |
931 | ||
932 | llassert (lc != NULL); | |
933 | ||
934 | *lc = '\0'; | |
935 | sname = mstring_copy (*c); | |
936 | *c = lc + 1; | |
937 | ||
938 | if (*sname == '!') | |
939 | { | |
940 | unsigned int i; | |
941 | ||
942 | i = (unsigned) atoi (sname + 1); | |
943 | setTagNo (i); | |
944 | } | |
945 | ||
946 | ret = ctbase_createEnum (cstring_fromCharsO (sname), | |
947 | enumNameList_undump (c)); | |
948 | return ret; | |
949 | } | |
950 | case 'C': | |
951 | { | |
952 | bool isExplicit; | |
953 | ctype c1, c2; | |
954 | ||
28bf4b0b | 955 | isExplicit = bool_fromInt (reader_getInt (c)); |
956 | reader_checkChar (c, '.'); | |
885824d3 | 957 | c1 = ctype_undump (c); |
28bf4b0b | 958 | reader_checkChar (c, '/'); |
885824d3 | 959 | c2 = ctype_undump (c); |
28bf4b0b | 960 | reader_checkChar (c, '|'); |
885824d3 | 961 | |
962 | return (ctbase_makeConj (c1, c2, isExplicit)); | |
963 | } | |
964 | ||
965 | default: | |
966 | (*c)--; | |
967 | llerror (FLG_SYNTAX, | |
968 | message ("Bad Library line (type): %s", cstring_fromChars (*c))); | |
969 | ||
86d93ed3 | 970 | /*drl bee: pbr*/ while (**c != '\0') |
885824d3 | 971 | { |
972 | (*c)++; | |
973 | } | |
974 | ||
975 | return ctbase_createUnknown (); | |
976 | } | |
977 | } | |
978 | ||
979 | /* first letter of c encodes type: */ | |
980 | /* u unknown */ | |
981 | /* b bool */ | |
982 | /* p prim */ | |
983 | /* e enum */ | |
984 | /* l enumList */ | |
985 | /* s uSer */ | |
986 | /* a abstract */ | |
987 | /* t poinTer */ | |
988 | /* y arraY */ | |
989 | /* F Fixed array */ | |
990 | /* f function */ | |
991 | /* S structure */ | |
992 | /* U union */ | |
993 | /* C conj */ | |
994 | ||
995 | static /*@only@*/ cstring | |
996 | ctbase_dump (ctbase c) | |
997 | { | |
998 | if (!ctbase_isDefined (c)) | |
999 | { | |
1000 | return cstring_makeLiteral ("?"); | |
1001 | } | |
1002 | ||
1003 | switch (c->type) | |
1004 | { | |
1005 | case CT_UNKNOWN: | |
1006 | return cstring_makeLiteral ("u"); | |
1007 | case CT_BOOL: | |
1008 | return cstring_makeLiteral ("b"); | |
1009 | case CT_PRIM: | |
1010 | return (message ("p%d|", c->contents.prim)); | |
1011 | case CT_USER: | |
1012 | return (message ("s%d|", | |
1013 | usymtab_convertId (c->contents.tid))); | |
1014 | case CT_ABST: | |
1015 | return (message ("a%d|", usymtab_convertId (c->contents.tid))); | |
1016 | case CT_PTR: | |
1017 | return (message ("t%q|", ctype_dump (c->contents.base))); | |
1018 | case CT_ARRAY: | |
1019 | return (message ("y%q|", ctype_dump (c->contents.base))); | |
1020 | case CT_FIXEDARRAY: | |
1021 | return (message ("F%q/%d|", | |
1022 | ctype_dump (c->contents.farray->base), | |
1023 | (int) c->contents.farray->size)); | |
1024 | case CT_FCN: | |
28bf4b0b | 1025 | DPRINTF (("Dump function: %s", ctbase_unparse (c))); |
885824d3 | 1026 | return (message ("f%q (%q)", ctype_dump (c->contents.fcn->rval), |
1027 | uentryList_dumpParams (c->contents.fcn->params))); | |
1028 | case CT_STRUCT: | |
1029 | return (message ("S%s{%q}", c->contents.su->name, | |
1030 | uentryList_dumpFields (c->contents.su->fields))); | |
1031 | case CT_UNION: | |
1032 | return (message ("U%s{%q}", c->contents.su->name, | |
1033 | uentryList_dumpFields (c->contents.su->fields))); | |
1034 | case CT_ENUM: | |
1035 | { | |
1036 | cstring s; | |
1037 | ||
1038 | if (cstring_isNonEmpty (c->contents.cenum->tag)) | |
1039 | { | |
1040 | s = message ("e%s{%q}", | |
1041 | c->contents.cenum->tag, | |
1042 | enumNameList_dump (c->contents.cenum->members)); | |
1043 | } | |
1044 | else | |
1045 | { | |
1046 | s = message ("e{%q}", | |
1047 | enumNameList_dump (c->contents.cenum->members)); | |
1048 | } | |
1049 | return (s); | |
1050 | } | |
1051 | case CT_CONJ: | |
1052 | return (message ("C%d.%q/%q|", | |
1053 | bool_toInt (c->contents.conj->isExplicit), | |
1054 | ctype_dump (c->contents.conj->a), | |
1055 | ctype_dump (c->contents.conj->b))); | |
1056 | case CT_EXPFCN: | |
1057 | /* should clean them up! */ | |
1058 | return (cstring_makeLiteral ("?")); | |
1059 | case CT_ENUMLIST: | |
1060 | llcontbug (message ("Cannot dump: %q", ctbase_unparse (c))); | |
1061 | return (message ("u")); | |
1062 | BADDEFAULT; | |
1063 | } | |
1064 | ||
1065 | BADEXIT; | |
1066 | } | |
1067 | ||
1068 | static /*@only@*/ ctbase | |
1069 | ctbase_copy (/*@notnull@*/ ctbase c) | |
1070 | { | |
1071 | switch (c->type) | |
1072 | { | |
1073 | case CT_UNKNOWN: | |
1074 | return (ctbase_createUnknown ()); | |
1075 | case CT_BOOL: | |
1076 | return (ctbase_createBool ()); | |
1077 | case CT_ENUM: | |
1078 | return (ctbase_createEnum (cstring_copy (c->contents.cenum->tag), | |
1079 | enumNameList_copy (c->contents.cenum->members))); | |
1080 | case CT_PRIM: | |
1081 | return (ctbase_createPrim (c->contents.prim)); | |
1082 | case CT_USER: | |
1083 | return (ctbase_createUser (c->contents.tid)); | |
1084 | case CT_ABST: | |
1085 | return (ctbase_createAbstract (c->contents.tid)); | |
1086 | case CT_EXPFCN: | |
1087 | return (ctbase_expectFunction (c->contents.base)); | |
1088 | case CT_PTR: | |
1089 | return (ctbase_makePointer (c->contents.base)); | |
1090 | case CT_ARRAY: | |
1091 | return (ctbase_makeArray (c->contents.base)); | |
1092 | case CT_FCN: | |
1093 | return (ctbase_makeLiveFunction (c->contents.fcn->rval, | |
1094 | uentryList_copy (c->contents.fcn->params))); | |
1095 | case CT_STRUCT: | |
1096 | return (ctbase_createStruct (cstring_copy (c->contents.su->name), | |
1097 | uentryList_copy (c->contents.su->fields))); | |
1098 | case CT_UNION: | |
1099 | return (ctbase_createUnion (cstring_copy (c->contents.su->name), | |
1100 | uentryList_copy (c->contents.su->fields))); | |
1101 | case CT_CONJ: | |
1102 | /*@i@*/ return (c); /* not a real copy for conj's */ | |
1103 | default: | |
1104 | llbug (message ("ctbase_copy: %q", ctbase_unparse (c))); | |
1105 | } | |
1106 | ||
1107 | BADEXIT; | |
1108 | } | |
1109 | ||
1110 | static enumNameList | |
1111 | ctbase_elist (ctbase c) | |
1112 | { | |
1113 | llassert (ctbase_isDefined (c)); | |
1114 | llassert (c->type == CT_ENUM); | |
1115 | ||
1116 | return (c->contents.cenum->members); | |
1117 | } | |
1118 | ||
1119 | static void | |
1120 | ctbase_free (/*@only@*/ ctbase c) | |
1121 | { | |
1122 | if (c == ctbase_bool || c == ctbase_unknown) | |
1123 | { | |
1124 | /*@-mustfree@*/ return; /*@=mustfree@*/ | |
1125 | } | |
1126 | ||
1127 | --nctbases; | |
1128 | ||
1129 | ||
1130 | if (ctbase_isDefined (c)) | |
1131 | { | |
1132 | switch (c->type) | |
1133 | { | |
1134 | case CT_UNKNOWN: | |
1135 | sfree (c); | |
1136 | break; | |
1137 | case CT_PRIM: | |
1138 | sfree (c); | |
1139 | break; | |
1140 | case CT_ENUM: | |
1141 | sfree (c); | |
1142 | break; | |
1143 | case CT_ENUMLIST: | |
1144 | /* sfree list? */ | |
1145 | sfree (c); | |
1146 | break; | |
1147 | case CT_USER: | |
1148 | sfree (c); | |
1149 | break; | |
1150 | case CT_ABST: | |
1151 | sfree (c); | |
1152 | break; | |
1153 | case CT_PTR: | |
1154 | case CT_ARRAY: | |
1155 | sfree (c); | |
1156 | break; | |
1157 | case CT_FCN: | |
28bf4b0b | 1158 | /*@i32@*/ /* uentryList_free (c->contents.fcn->params); */ |
885824d3 | 1159 | sfree (c); |
1160 | break; | |
1161 | case CT_STRUCT: | |
1162 | case CT_UNION: | |
1163 | cstring_free (c->contents.su->name); | |
1164 | uentryList_free (c->contents.su->fields); | |
1165 | sfree (c); | |
1166 | break; | |
1167 | case CT_CONJ: | |
1168 | /* Don't bree conj's, */ | |
1169 | break; | |
1170 | default: | |
1171 | sfree (c); | |
1172 | break; | |
1173 | } | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | /* | |
1178 | ** c should be * <unknown> | |
1179 | */ | |
1180 | ||
1181 | static /*@only@*/ ctbase | |
1182 | ctbase_expectFunction (ctype c) | |
1183 | { | |
1184 | ctbase f = ctbase_new (); | |
1185 | ||
1186 | f->type = CT_EXPFCN; | |
1187 | f->contents.base = c; | |
1188 | ||
1189 | return (f); | |
1190 | } | |
1191 | ||
e8b84478 | 1192 | static bool |
abd7f895 | 1193 | ctbase_isExpectFunction (/*@notnull@*/ ctbase ct) /*@*/ |
e8b84478 | 1194 | { |
1195 | return (ct->type == CT_EXPFCN); | |
1196 | } | |
1197 | ||
1198 | static ctype | |
abd7f895 | 1199 | ctbase_getExpectFunction (/*@notnull@*/ ctbase ct) |
e8b84478 | 1200 | { |
1201 | llassert (ctbase_isExpectFunction (ct)); | |
1202 | return ct->contents.base; | |
1203 | } | |
1204 | ||
885824d3 | 1205 | static bool |
a0a162cd | 1206 | ctbase_genMatch (ctbase c1, ctbase c2, bool force, bool arg, bool def, bool deep) |
885824d3 | 1207 | { |
1208 | ctuid c1tid, c2tid; | |
1209 | ||
1210 | /* undefined types never match */ | |
1211 | ||
1212 | if (ctbase_isUndefined (c1) || ctbase_isUndefined (c2)) | |
1213 | return FALSE; | |
1214 | ||
1215 | /* abstract types match user types of same name */ | |
1216 | ||
1217 | c1 = ctbase_realType (c1); | |
1218 | c2 = ctbase_realType (c2); | |
1219 | ||
a0a162cd | 1220 | DPRINTF (("Matching: %s / %s", ctbase_unparse (c1), |
1221 | ctbase_unparse (c2))); | |
1222 | ||
885824d3 | 1223 | c1tid = c1->type; |
1224 | c2tid = c2->type; | |
1225 | ||
1226 | if (c1tid == CT_CONJ) | |
1227 | { | |
1228 | return (ctbase_genMatch (ctype_getCtbase (c1->contents.conj->a), c2, | |
a0a162cd | 1229 | force, arg, def, deep) |
885824d3 | 1230 | || ctbase_genMatch (ctype_getCtbase (c1->contents.conj->b), c2, |
a0a162cd | 1231 | force, arg, def, deep)); |
885824d3 | 1232 | } |
1233 | ||
1234 | if (c2tid == CT_CONJ) | |
1235 | { | |
1236 | return (ctbase_genMatch (c1, ctype_getCtbase (c2->contents.conj->a), | |
a0a162cd | 1237 | force, arg, def, deep) |
885824d3 | 1238 | || ctbase_genMatch (c1, ctype_getCtbase (c2->contents.conj->b), |
a0a162cd | 1239 | force, arg, def, deep)); |
885824d3 | 1240 | } |
1241 | ||
1242 | /* | |
1243 | ** if the types don't match, there are some special cases... | |
1244 | */ | |
1245 | ||
1246 | if (c1tid != c2tid) | |
1247 | { | |
1248 | /* unknowns match anything */ | |
1249 | ||
1250 | if (c1tid == CT_UNKNOWN || c2tid == CT_UNKNOWN) | |
1251 | { | |
1252 | return TRUE; | |
1253 | } | |
1254 | ||
1255 | if (c1tid == CT_FIXEDARRAY | |
1256 | && (c2tid == CT_ARRAY || (!def && c2tid == CT_PTR))) | |
1257 | { | |
1258 | if (ctype_isVoid (c2->contents.base)) | |
1259 | { | |
1260 | return (context_getFlag (FLG_ABSTVOIDP) || | |
1261 | (!(ctype_isRealAbstract (c1->contents.farray->base)) && | |
1262 | !(ctype_isRealAbstract (c2->contents.base)))); | |
1263 | } | |
1264 | ||
1265 | return (ctbase_genMatch (ctype_getCtbase (c1->contents.farray->base), | |
1266 | ctype_getCtbase (c2->contents.base), | |
a0a162cd | 1267 | force, arg, def, deep)); |
885824d3 | 1268 | } |
1269 | ||
1270 | ||
1271 | if (c2tid == CT_FIXEDARRAY | |
1272 | && (c1tid == CT_ARRAY || (!def && c1tid == CT_PTR))) | |
1273 | { | |
1274 | if (ctype_isVoid (c1->contents.base)) | |
1275 | { | |
1276 | return (context_getFlag (FLG_ABSTVOIDP) || | |
1277 | (!(ctype_isRealAbstract (c2->contents.farray->base)) && | |
1278 | !(ctype_isRealAbstract (c1->contents.base)))); | |
1279 | } | |
1280 | ||
1281 | return (ctbase_genMatch (ctype_getCtbase (c1->contents.base), | |
1282 | ctype_getCtbase (c2->contents.farray->base), | |
a0a162cd | 1283 | force, arg, def, deep)); |
885824d3 | 1284 | } |
1285 | ||
a0a162cd | 1286 | /* evs 2000-07-25: Bool's may match user/abstract types */ |
1287 | ||
885824d3 | 1288 | if ((c1tid == CT_BOOL |
1289 | && (c2tid == CT_PRIM && cprim_isInt (c2->contents.prim))) || | |
1290 | (c2tid == CT_BOOL | |
1291 | && (c1tid == CT_PRIM && cprim_isInt (c1->contents.prim)))) | |
1292 | { | |
1293 | return (context_msgBoolInt ()); | |
1294 | } | |
1295 | ||
a0a162cd | 1296 | if ((c1tid == CT_BOOL && (c2tid == CT_ABST || c2tid == CT_USER))) { |
1297 | ctype t2c = c2->contents.base; | |
1298 | ||
1299 | return (ctype_isBool (t2c)); | |
1300 | } | |
1301 | ||
1302 | if ((c2tid == CT_BOOL && (c1tid == CT_ABST || c1tid == CT_USER))) { | |
1303 | ctype t1c = c1->contents.base; | |
1304 | ||
1305 | return (ctype_isBool (t1c)); | |
1306 | } | |
1307 | ||
885824d3 | 1308 | if ((c1tid == CT_ENUM |
1309 | && (c2tid == CT_PRIM && cprim_isInt (c2->contents.prim))) || | |
1310 | (c2tid == CT_ENUM | |
1311 | && (c1tid == CT_PRIM && cprim_isInt (c1->contents.prim)))) | |
1312 | { | |
1313 | return (context_msgEnumInt ()); | |
1314 | } | |
1315 | ||
1316 | /* | |
1317 | ** arrays and pointers...yuk! | |
1318 | ** | |
1319 | ** Considered equivalent except in definitions. | |
1320 | ** (e.g., function parameters are equivalent) | |
1321 | ** | |
1322 | */ | |
1323 | ||
1324 | if (!def) | |
1325 | { | |
1326 | if (ctuid_isAP (c1tid) && ctuid_isAP (c2tid)) | |
1327 | { | |
1328 | c2tid = c1tid; | |
1329 | } | |
1330 | } | |
1331 | ||
1332 | /* | |
1333 | ** Function pointers can be removed. | |
1334 | ** | |
1335 | ** [function ..] is equivalent to [function ..] * | |
1336 | */ | |
1337 | ||
1338 | if (c1tid == CT_PTR && c2tid == CT_FCN) | |
1339 | { | |
1340 | if (ctype_isFunction (ctype_realType (c1->contents.base))) | |
1341 | { | |
1342 | c1 = ctbase_realType (ctype_getCtbaseSafe (c1->contents.base)); | |
1343 | c1tid = c1->type; | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | if (c2tid == CT_PTR && c1tid == CT_FCN) | |
1348 | { | |
1349 | if (ctype_isFunction (ctype_realType (c2->contents.base))) | |
1350 | { | |
1351 | c2 = ctbase_realType (ctype_getCtbaseSafe (c2->contents.base)); | |
1352 | c2tid = c2->type; | |
1353 | } | |
1354 | } | |
1355 | ||
1356 | /* | |
1357 | ** we allow forward declarations to structures like, | |
1358 | ** | |
1359 | ** typedef struct _t *t; | |
1360 | ** | |
1361 | ** to allow, | |
1362 | ** struct _t * to match t | |
1363 | */ | |
1364 | ||
1365 | if (context_getFlag (FLG_FORWARDDECL)) | |
1366 | { | |
1367 | if (c1tid == CT_ABST || c1tid == CT_USER) | |
1368 | { | |
1369 | if (ctuid_isAP (c2tid)) | |
1370 | { | |
1371 | ctype ts = c2->contents.base; | |
1372 | ||
1373 | if (ctype_isUA (ts)) | |
1374 | { | |
1375 | typeId ttid = ctype_typeId (ts); | |
1376 | typeId ctid = c1->contents.tid ; | |
1377 | ||
1378 | if (usymtab_matchForwardStruct (ctid, ttid)) | |
1379 | { | |
1380 | return TRUE; | |
1381 | } | |
1382 | } | |
1383 | } | |
1384 | } | |
1385 | ||
1386 | if (c2tid == CT_ABST || c2tid == CT_USER) | |
1387 | { | |
1388 | if (ctuid_isAP (c1tid)) | |
1389 | { | |
1390 | ctype ts = c1->contents.base; | |
1391 | ||
1392 | if (ctype_isUA (ts)) | |
1393 | { | |
1394 | typeId ttid = ctype_typeId (ts); | |
1395 | typeId ctid = c2->contents.tid ; | |
1396 | ||
1397 | if (usymtab_matchForwardStruct (ctid, ttid)) | |
1398 | { | |
1399 | return TRUE; | |
1400 | } | |
1401 | } | |
1402 | } | |
1403 | } | |
1404 | } | |
1405 | } | |
1406 | ||
1407 | if (c1tid != c2tid) | |
1408 | return FALSE; | |
1409 | ||
1410 | switch (c1tid) | |
1411 | { | |
1412 | case CT_UNKNOWN: | |
1413 | return (TRUE); | |
1414 | case CT_PRIM: | |
a0a162cd | 1415 | if (deep) { |
1416 | return (cprim_closeEnoughDeep (c1->contents.prim, c2->contents.prim)); | |
1417 | } else { | |
1418 | return (cprim_closeEnough (c1->contents.prim, c2->contents.prim)); | |
1419 | } | |
885824d3 | 1420 | case CT_BOOL: |
1421 | return (TRUE); | |
1422 | case CT_ABST: | |
1423 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
1424 | case CT_USER: | |
1425 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
1426 | case CT_ENUM: | |
1427 | return (cstring_equal (c1->contents.cenum->tag, c2->contents.cenum->tag)); | |
1428 | case CT_PTR: | |
1429 | if (ctype_isVoid (c1->contents.base) | |
1430 | || (ctype_isVoid (c2->contents.base))) | |
1431 | { | |
1432 | if (ctype_isFunction (ctype_realType (c1->contents.base)) | |
1433 | || ctype_isFunction (ctype_realType (c2->contents.base))) | |
1434 | { | |
1435 | return (!context_getFlag (FLG_CASTFCNPTR)); | |
1436 | } | |
1437 | else | |
1438 | { | |
1439 | return (context_getFlag (FLG_ABSTVOIDP) || | |
1440 | (!(ctype_isRealAbstract (c1->contents.base)) && | |
1441 | !(ctype_isRealAbstract (c2->contents.base)))); | |
1442 | } | |
1443 | } | |
1444 | else | |
1445 | { | |
1446 | /* Only allow one implicit function pointer. */ | |
1447 | ||
1448 | if (!bool_equal (ctype_isRealPointer (c1->contents.base), | |
1449 | ctype_isRealPointer (c2->contents.base)) | |
1450 | && (ctype_isRealFunction (c1->contents.base) | |
1451 | || ctype_isRealFunction (c2->contents.base))) | |
1452 | { | |
1453 | return FALSE; | |
1454 | } | |
a0a162cd | 1455 | |
885824d3 | 1456 | return (ctype_genMatch (c1->contents.base, |
a0a162cd | 1457 | c2->contents.base, force, arg, def, TRUE)); |
885824d3 | 1458 | } |
1459 | case CT_FIXEDARRAY: | |
1460 | if (ctype_isVoid (c1->contents.farray->base) | |
1461 | || ctype_isVoid (c2->contents.farray->base)) | |
1462 | return TRUE; | |
1463 | return (ctype_genMatch (c1->contents.farray->base, | |
1464 | c2->contents.farray->base, | |
a0a162cd | 1465 | force, arg, def, deep)); |
885824d3 | 1466 | case CT_ARRAY: |
1467 | if (ctype_isVoid (c1->contents.base) || ctype_isVoid (c2->contents.base)) | |
1468 | return TRUE; | |
a0a162cd | 1469 | return (ctype_genMatch (c1->contents.base, c2->contents.base, force, arg, def, TRUE)); |
885824d3 | 1470 | case CT_FCN: |
1471 | return (ctype_genMatch (c1->contents.fcn->rval, | |
1472 | c2->contents.fcn->rval, | |
a0a162cd | 1473 | force, arg, def, TRUE) |
885824d3 | 1474 | && uentryList_matchParams (c1->contents.fcn->params, |
1475 | c2->contents.fcn->params, | |
1476 | force, TRUE)); | |
1477 | case CT_STRUCT: | |
1478 | case CT_UNION: | |
a0a162cd | 1479 | DPRINTF (("Struct: %s / %s", |
1480 | c1->contents.su->name, | |
1481 | c2->contents.su->name)); | |
1482 | ||
28bf4b0b | 1483 | if (isFakeTag (c1->contents.su->name) |
1484 | && isFakeTag (c2->contents.su->name)) | |
885824d3 | 1485 | { |
28bf4b0b | 1486 | /* Both fake tags, check structure */ |
1487 | if (cstring_equal (c1->contents.su->name, c2->contents.su->name)) | |
1488 | { | |
1489 | return TRUE; | |
1490 | } | |
1491 | else | |
1492 | { | |
1493 | return uentryList_matchFields (c1->contents.su->fields, | |
1494 | c2->contents.su->fields); | |
1495 | } | |
885824d3 | 1496 | } |
1497 | else | |
1498 | { | |
28bf4b0b | 1499 | if (!cstring_isEmpty (c1->contents.su->name)) |
885824d3 | 1500 | { |
28bf4b0b | 1501 | return (cstring_equal (c1->contents.su->name, c2->contents.su->name)); |
1502 | } | |
1503 | else | |
1504 | { | |
1505 | if (!cstring_isEmpty (c2->contents.su->name)) | |
1506 | { | |
1507 | return FALSE; | |
1508 | } | |
1509 | ||
1510 | llcontbuglit ("ctbase_genMatch: match fields"); | |
1511 | return (FALSE); | |
885824d3 | 1512 | } |
885824d3 | 1513 | } |
1514 | default: | |
1515 | llcontbug (message ("ctbase_genMatch: unknown type: %d\n", (int)c1tid)); | |
1516 | return (FALSE); | |
1517 | } | |
1518 | } | |
1519 | ||
1520 | /* | |
1521 | ** like ctbase_match, except for conjuncts: | |
1522 | ** modifies conjuncts to match only | |
1523 | */ | |
1524 | ||
1525 | static bool | |
a0a162cd | 1526 | ctbase_forceMatch (ctbase c1, ctbase c2) /*@modifies c1, c2@*/ |
885824d3 | 1527 | { |
a0a162cd | 1528 | return (ctbase_genMatch (c1, c2, TRUE, FALSE, FALSE, FALSE)); |
885824d3 | 1529 | } |
1530 | ||
1531 | static bool | |
1532 | ctbase_match (ctbase c1, ctbase c2) /*@modifies nothing@*/ | |
1533 | { | |
a0a162cd | 1534 | return (ctbase_genMatch (c1, c2, FALSE, FALSE, FALSE, FALSE)); |
885824d3 | 1535 | } |
1536 | ||
1537 | static bool | |
1538 | ctbase_matchDef (ctbase c1, ctbase c2) /*@modifies nothing@*/ | |
1539 | { | |
a0a162cd | 1540 | return (ctbase_genMatch (c1, c2, FALSE, FALSE, TRUE, FALSE)); |
885824d3 | 1541 | } |
1542 | ||
1543 | static bool | |
1544 | ctbase_matchArg (ctbase c1, ctbase c2) | |
1545 | { | |
a0a162cd | 1546 | return (ctbase_genMatch (c1, c2, FALSE, TRUE, FALSE, FALSE)); |
885824d3 | 1547 | } |
1548 | ||
1549 | static /*@out@*/ /*@only@*/ /*@notnull@*/ ctbase | |
1550 | ctbase_new () | |
1551 | { | |
1552 | ctbase c = (ctbase) dmalloc (sizeof (*c)); | |
1553 | ||
1554 | nctbases++; | |
1555 | /* | |
1556 | if (nctbases % 100 == 0 && nctbases > lastnc) | |
1557 | { | |
1558 | llmsg (message ("ctbases: %d", nctbases)); | |
1559 | lastnc = nctbases; | |
1560 | } | |
1561 | */ | |
1562 | return (c); | |
1563 | } | |
1564 | ||
1565 | static /*@only@*/ ctbase | |
1566 | ctbase_createPrim (cprim p) | |
1567 | { | |
1568 | ctbase c = ctbase_new (); | |
1569 | ||
1570 | c->type = CT_PRIM; | |
1571 | c->contents.prim = p; | |
1572 | ||
1573 | return (c); | |
1574 | } | |
1575 | ||
1576 | static /*@observer@*/ ctbase | |
1577 | ctbase_getBool (void) | |
1578 | { | |
1579 | /*@i@*/ return ctbase_createBool (); | |
1580 | } | |
1581 | ||
1582 | static ctbase | |
1583 | ctbase_createBool () | |
1584 | { | |
1585 | if (!ctbase_isDefined (ctbase_bool)) | |
1586 | { | |
1587 | ctbase_bool = ctbase_new (); | |
1588 | ctbase_bool->type = CT_BOOL; | |
1589 | ctbase_bool->contents.prim = CTX_BOOL; | |
1590 | } | |
1591 | ||
1592 | /*@-retalias@*/ /*@-globstate@*/ | |
1593 | return ctbase_bool; | |
1594 | /*@=retalias@*/ /*@=globstate@*/ | |
1595 | } | |
1596 | ||
1597 | static /*@only@*/ ctbase | |
1598 | ctbase_createUser (typeId u) | |
1599 | { | |
1600 | ctbase c = ctbase_new (); | |
1601 | ||
1602 | c->type = CT_USER; | |
1603 | c->contents.tid = u; | |
1604 | ||
1605 | llassert (typeId_isValid (u)); | |
1606 | ||
1607 | return (c); | |
1608 | } | |
1609 | ||
1610 | static /*@only@*/ ctbase | |
1611 | ctbase_createEnum (/*@keep@*/ cstring etag, /*@keep@*/ enumNameList emembers) | |
1612 | { | |
1613 | ctbase c = ctbase_new (); | |
1614 | ||
1615 | c->type = CT_ENUM; | |
1616 | ||
1617 | if (cstring_isUndefined (etag)) | |
1618 | { | |
1619 | llcontbuglit ("Undefined enum tag!"); | |
1620 | etag = fakeTag (); | |
1621 | } | |
1622 | ||
1623 | c->contents.cenum = (tenum) dmalloc (sizeof (*c->contents.cenum)); | |
1624 | c->contents.cenum->tag = etag; | |
1625 | c->contents.cenum->members = emembers; | |
1626 | ||
1627 | return (c); | |
1628 | } | |
1629 | ||
1630 | static /*@observer@*/ cstring | |
1631 | ctbase_enumTag (/*@notnull@*/ ctbase ct) | |
1632 | { | |
1633 | return (ct->contents.cenum->tag); | |
1634 | } | |
1635 | ||
1636 | static /*@only@*/ ctbase | |
1637 | ctbase_createAbstract (typeId u) | |
1638 | { | |
1639 | ctbase c = ctbase_new (); | |
1640 | ||
1641 | c->type = CT_ABST; | |
1642 | c->contents.tid = u; | |
1643 | ||
1644 | /* also check its abstract? */ | |
1645 | ||
1646 | llassert (typeId_isValid (c->contents.tid)); | |
1647 | ||
1648 | return (c); | |
1649 | } | |
1650 | ||
1651 | static /*@only@*/ ctbase | |
1652 | ctbase_createUnknown (void) | |
1653 | { | |
1654 | if (!ctbase_isDefined (ctbase_unknown)) | |
1655 | { | |
1656 | ctbase_unknown = ctbase_new (); | |
1657 | ctbase_unknown->type = CT_UNKNOWN; | |
1658 | ctbase_unknown->contents.prim = CTX_UNKNOWN; | |
1659 | } | |
1660 | ||
1661 | /*@-retalias@*/ /*@-globstate@*/ | |
1662 | return ctbase_unknown; | |
1663 | /*@=retalias@*/ /*@=globstate@*/ | |
1664 | } | |
1665 | ||
1666 | /* | |
1667 | ** requires: result is not assigned to b | |
1668 | ** (should copy, but no way to reclaim storage) | |
1669 | */ | |
1670 | ||
1671 | static /*@only@*/ ctbase | |
1672 | ctbase_makePointer (ctype b) | |
1673 | { | |
1674 | ctbase c = ctbase_new (); | |
1675 | ||
1676 | c->type = CT_PTR; | |
1677 | c->contents.base = b; | |
1678 | ||
1679 | return (c); | |
1680 | } | |
1681 | ||
1682 | static /*@only@*/ ctbase | |
1683 | ctbase_makeArray (ctype b) | |
1684 | { | |
1685 | ctbase c = ctbase_new (); | |
1686 | ||
1687 | c->type = CT_ARRAY; | |
1688 | c->contents.base = b; | |
1689 | ||
1690 | return (c); | |
1691 | } | |
1692 | ||
1693 | static /*@notnull@*/ /*@only@*/ ctbase | |
37ae0b5e | 1694 | ctbase_makeFixedArray (ctype b, size_t size) |
885824d3 | 1695 | { |
1696 | ctbase c = ctbase_new (); | |
1697 | ||
1698 | c->type = CT_FIXEDARRAY; | |
1699 | ||
1700 | c->contents.farray = (tfixed) dmalloc (sizeof (*c->contents.farray)); | |
1701 | c->contents.farray->base = b; | |
1702 | c->contents.farray->size = size; | |
1703 | ||
1704 | return (c); | |
1705 | } | |
1706 | ||
1707 | static ctype | |
1708 | ctbase_makeFunction (ctype b, /*@only@*/ uentryList p) | |
1709 | { | |
1710 | ctbase c = ctbase_new (); | |
1711 | ctype ct; | |
1712 | ||
1713 | c->type = CT_FCN; | |
1714 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1715 | ||
1716 | if (ctype_isFunction (b)) /* was: && ctype_isPointer (b)) */ | |
1717 | { | |
1718 | ctbase ctb; | |
1719 | ctype rval; | |
1720 | ||
1721 | if (ctype_isPointer (b)) | |
1722 | { | |
1723 | ctb = ctype_getCtbase (ctype_baseArrayPtr (b)); | |
1724 | } | |
1725 | else | |
1726 | { | |
1727 | ctb = ctype_getCtbase (b); | |
1728 | } | |
1729 | ||
1730 | llassert (ctbase_isDefined (ctb)); | |
1731 | llassert (ctb->type == CT_FCN); | |
1732 | ||
1733 | rval = ctype_makeFunction (ctb->contents.fcn->rval, p); | |
1734 | ||
1735 | c->contents.fcn->rval = rval; | |
28bf4b0b | 1736 | c->contents.fcn->params = uentryList_copy (ctb->contents.fcn->params); /* no copy before */ |
885824d3 | 1737 | } |
1738 | else | |
1739 | { | |
1740 | c->contents.fcn->rval = b; | |
28bf4b0b | 1741 | c->contents.fcn->params = uentryList_copy (p); /* no copy before */ |
885824d3 | 1742 | /*@-branchstate@*/ /* p is really released on this branch */ |
1743 | } | |
1744 | /*@=branchstate@*/ | |
1745 | ||
1746 | ct = cttable_addComplex (c); | |
1747 | return (ct); /* was: ctype_makePointer (ct)); */ | |
1748 | } | |
1749 | ||
1750 | static ctype | |
1751 | ctbase_makeNFFunction (ctype b, /*@only@*/ uentryList p) | |
1752 | { | |
1753 | ctbase c = ctbase_new (); | |
1754 | ctype ct; | |
1755 | ||
1756 | c->type = CT_FCN; | |
1757 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1758 | ||
1759 | if (ctype_isFunction (b)) /* was && ctype_isPointer (b)) */ | |
1760 | { | |
1761 | ctbase ctb; | |
1762 | ctype rval; | |
1763 | ||
1764 | if (ctype_isPointer (b)) | |
1765 | { | |
1766 | ctb = ctype_getCtbase (ctype_baseArrayPtr (b)); | |
1767 | } | |
1768 | else | |
1769 | { | |
1770 | ctb = ctype_getCtbase (b); | |
1771 | } | |
1772 | ||
1773 | llassert (ctbase_isDefined (ctb)); | |
1774 | llassert (ctb->type == CT_FCN); | |
1775 | ||
1776 | rval = ctype_makeNFParamsFunction (ctb->contents.fcn->rval, p); | |
1777 | ||
1778 | c->contents.fcn->rval = rval; | |
28bf4b0b | 1779 | c->contents.fcn->params = uentryList_copy (ctb->contents.fcn->params); |
885824d3 | 1780 | } |
1781 | else | |
1782 | { | |
1783 | c->contents.fcn->rval = b; | |
28bf4b0b | 1784 | c->contents.fcn->params = uentryList_copy (p); |
885824d3 | 1785 | /*@-branchstate@*/ |
1786 | } | |
1787 | /*@=branchstate@*/ | |
1788 | ||
1789 | ct = cttable_addComplex (c); | |
1790 | return (ct); /* was: ctype_makePointer (ct)); */ | |
1791 | } | |
1792 | ||
1793 | static /*@only@*/ ctbase | |
28bf4b0b | 1794 | ctbase_makeLiveFunction (ctype b, /*@only@*/ uentryList p) |
885824d3 | 1795 | { |
1796 | ctbase c = ctbase_new (); | |
1797 | ||
1798 | c->type = CT_FCN; | |
1799 | ||
1800 | c->contents.fcn = (cfcn) dmalloc (sizeof (*c->contents.fcn)); | |
1801 | c->contents.fcn->rval = b; | |
1802 | c->contents.fcn->params = p; | |
885824d3 | 1803 | |
1804 | /*@-mustfree@*/ return (c); /*@=mustfree@*/ | |
1805 | } | |
1806 | ||
885824d3 | 1807 | static /*@observer@*/ /*@notnull@*/ ctbase |
1808 | ctbase_realFunction (/*@dependent@*/ /*@notnull@*/ ctbase c) | |
1809 | { | |
1810 | ctbase res; | |
1811 | ||
1812 | if (c->type == CT_FCN) | |
1813 | { | |
1814 | return c; | |
1815 | } | |
1816 | ||
1817 | llassert (ctbase_isFunction (c)); | |
1818 | ||
1819 | res = ctype_getCtbase (c->contents.base); | |
1820 | ||
1821 | llassert (ctbase_isDefined (res)); | |
1822 | ||
1823 | return (res); | |
1824 | } | |
1825 | ||
1826 | static bool | |
1827 | ctbase_isFunction (ctbase c) | |
1828 | { | |
1829 | llassert (c != ctbase_undefined); | |
1830 | ||
1831 | if (c->type == CT_FCN) | |
1832 | { | |
1833 | return TRUE; | |
1834 | } | |
1835 | else | |
1836 | { | |
1837 | if (c->type == CT_PTR) | |
1838 | { | |
1839 | ctbase fcn = ctype_getCtbase (ctbase_baseArrayPtr (c)); | |
1840 | ||
1841 | return (ctbase_isDefined (fcn) && fcn->type == CT_FCN); | |
1842 | } | |
1843 | ||
1844 | return FALSE; | |
1845 | } | |
1846 | } | |
1847 | ||
1848 | /* doesn't copy c1 and c2 */ | |
1849 | ||
1850 | static /*@only@*/ ctbase | |
1851 | ctbase_makeConj (ctype c1, ctype c2, bool isExplicit) | |
1852 | { | |
1853 | ctbase c = ctbase_new (); | |
1854 | ||
1855 | c->type = CT_CONJ; | |
1856 | ||
1857 | c->contents.conj = (tconj) dmalloc (sizeof (*c->contents.conj)); | |
1858 | c->contents.conj->a = c1; | |
1859 | c->contents.conj->b = c2; | |
1860 | c->contents.conj->isExplicit = isExplicit; | |
1861 | ||
1862 | return (c); | |
1863 | } | |
1864 | ||
d5047b91 | 1865 | static bool ctbase_isAnytype (/*@notnull@*/ ctbase b) |
1866 | { | |
1867 | /* | |
1868 | ** A unknown|dne conj is a special representation for an anytype. | |
1869 | */ | |
1870 | ||
1871 | if (b->type == CT_CONJ) | |
1872 | { | |
1873 | /*@access ctype@*/ | |
1874 | return (b->contents.conj->a == ctype_unknown | |
1875 | && b->contents.conj->b == ctype_dne); | |
1876 | /*@noaccess ctype@*/ | |
1877 | } | |
1878 | ||
1879 | return FALSE; | |
1880 | } | |
1881 | ||
885824d3 | 1882 | static ctype |
1883 | ctbase_getConjA (/*@notnull@*/ ctbase c) | |
1884 | { | |
1885 | llassert (c->type == CT_CONJ); | |
1886 | return (c->contents.conj->a); | |
1887 | } | |
1888 | ||
1889 | static ctype | |
1890 | ctbase_getConjB (/*@notnull@*/ ctbase c) | |
1891 | { | |
1892 | llassert (c->type == CT_CONJ); | |
1893 | return (c->contents.conj->b); | |
1894 | } | |
1895 | ||
1896 | static bool | |
1897 | ctbase_isExplicitConj (/*@notnull@*/ ctbase c) | |
1898 | { | |
1899 | llassert (c->type == CT_CONJ); | |
1900 | return (c->contents.conj->isExplicit); | |
1901 | } | |
1902 | ||
1903 | static /*@only@*/ ctbase | |
1904 | ctbase_createStruct (/*@only@*/ cstring n, /*@only@*/ uentryList f) | |
1905 | { | |
1906 | ctbase c = ctbase_new (); | |
1907 | ||
1908 | c->type = CT_STRUCT; | |
1909 | ||
1910 | c->contents.su = (tsu) dmalloc (sizeof (*c->contents.su)); | |
1911 | c->contents.su->name = n; | |
1912 | c->contents.su->fields = f; | |
1913 | ||
1914 | return (c); | |
1915 | } | |
1916 | ||
1917 | static /*@observer@*/ uentryList | |
1918 | ctbase_getuentryList (/*@notnull@*/ ctbase c) | |
1919 | { | |
1920 | c = ctbase_realType (c); | |
1921 | ||
1922 | if (!(c->type == CT_STRUCT || c->type == CT_UNION)) | |
1923 | llfatalbug (message ("ctbase_getuentryList: bad invocation: %q", ctbase_unparse (c))); | |
1924 | ||
1925 | return (c->contents.su->fields); | |
1926 | } | |
1927 | ||
1928 | static ctbase | |
1929 | ctbase_createUnion (/*@keep@*/ cstring n, /*@only@*/ uentryList f) | |
1930 | { | |
1931 | ctbase c = ctbase_new (); | |
1932 | ||
1933 | c->type = CT_UNION; | |
1934 | ||
1935 | c->contents.su = (tsu) dmalloc (sizeof (*c->contents.su)); | |
1936 | c->contents.su->name = n; | |
1937 | c->contents.su->fields = f; | |
1938 | ||
1939 | return (c); | |
1940 | } | |
1941 | ||
1942 | static ctype | |
1943 | ctbase_baseArrayPtr (/*@notnull@*/ ctbase c) | |
1944 | { | |
1945 | ctuid ct; | |
1946 | c = ctbase_realType (c); | |
1947 | ct = c->type; | |
1948 | ||
1949 | if (ct == CT_FIXEDARRAY) | |
1950 | { | |
1951 | return c->contents.farray->base; | |
1952 | } | |
1953 | else | |
1954 | { | |
1955 | llassert (ctuid_isAP (ct)); | |
1956 | ||
1957 | return c->contents.base; | |
1958 | } | |
1959 | } | |
1960 | ||
1961 | static ctype | |
1962 | ctbase_baseFunction (/*@notnull@*/ ctbase c) | |
1963 | { | |
1964 | ctbase_fixUser (c); | |
1965 | c = ctbase_realFunction (c); | |
1966 | ||
1967 | if (c->type != CT_FCN) | |
1968 | { | |
1969 | llfatalbug (message ("ctbase_baseFunction: bad call: %q", ctbase_unparse (c))); | |
1970 | } | |
1971 | ||
1972 | return (c->contents.fcn->rval); | |
1973 | } | |
1974 | ||
1975 | static uentryList | |
1976 | ctbase_argsFunction (/*@notnull@*/ ctbase c) | |
1977 | { | |
1978 | ctbase_fixUser (c); | |
1979 | c = ctbase_realFunction (c); | |
1980 | ||
1981 | if (c->type != CT_FCN) | |
1982 | { | |
1983 | llfatalbug (message ("ctbase_argsFunction: bad call: %q", | |
1984 | ctbase_unparse (c))); | |
1985 | } | |
1986 | return (c->contents.fcn->params); | |
1987 | } | |
1988 | ||
1989 | static bool | |
1990 | ctbase_baseisExpFcn (ctype c) | |
1991 | { | |
1992 | ctbase cb; | |
1993 | c = ctype_removePointers (c); | |
1994 | ||
1995 | cb = ctype_getCtbase (c); | |
1996 | llassert (ctbase_isDefined (cb)); | |
1997 | ||
1998 | if (cb->type == CT_FCN) | |
1999 | { | |
28bf4b0b | 2000 | c = ctype_removePointers (ctype_getReturnType (c)); |
885824d3 | 2001 | |
2002 | cb = ctype_getCtbase (c); | |
2003 | llassert (ctbase_isDefined (cb)); | |
2004 | ||
2005 | return (cb->type == CT_EXPFCN); | |
2006 | } | |
2007 | return FALSE; | |
2008 | } | |
2009 | ||
2010 | /* | |
2011 | ** ctbase_newBase behaves specially when p is a CONJ: | |
2012 | ** | |
2013 | ** c -> conj (newBase (c, p.a), p.b) | |
2014 | */ | |
2015 | ||
2016 | static ctype | |
2017 | ctbase_newBase (ctype c, ctype p) | |
2018 | { | |
2019 | ctbase cb; | |
2020 | ||
2021 | DPRINTF (("New base: %s / %s", ctype_unparse (c), ctype_unparse (p))); | |
2022 | ||
28bf4b0b | 2023 | if (ctype_isUndefined (c) || ctype_isUnknown (c)) |
885824d3 | 2024 | { |
2025 | return p; | |
2026 | } | |
2027 | ||
28bf4b0b | 2028 | cb = ctype_getCtbase (c); |
2029 | ||
885824d3 | 2030 | if (ctype_isConj (p)) |
2031 | { | |
2032 | ctbase pb = ctype_getCtbase (p); | |
2033 | ||
2034 | llassert (ctbase_isDefined (pb)); | |
2035 | ||
2036 | if (pb->contents.conj->isExplicit) | |
2037 | { | |
2038 | return (ctype_makeExplicitConj (ctype_newBase (c, pb->contents.conj->a), | |
2039 | pb->contents.conj->b)); | |
2040 | ||
2041 | } | |
2042 | else | |
2043 | { | |
2044 | return (ctype_makeConj (ctype_newBase (c, pb->contents.conj->a), | |
2045 | pb->contents.conj->b)); | |
2046 | ||
2047 | } | |
2048 | } | |
2049 | ||
2050 | if (ctbase_baseisExpFcn (c)) | |
2051 | { | |
2052 | return (ctbase_newBaseExpFcn (c, p)); | |
2053 | } | |
2054 | ||
2055 | llassert (ctbase_isDefined (cb)); | |
2056 | ||
2057 | switch (cb->type) | |
2058 | { | |
2059 | case CT_UNKNOWN: | |
2060 | case CT_PRIM: | |
2061 | case CT_USER: | |
2062 | case CT_ENUM: | |
2063 | case CT_ABST: | |
2064 | case CT_STRUCT: | |
2065 | case CT_UNION: | |
2066 | case CT_EXPFCN: | |
2067 | return (p); | |
2068 | ||
2069 | case CT_PTR: | |
2070 | { | |
2071 | ctype ret; | |
2072 | ctype cbn; | |
2073 | ||
2074 | cbn = ctbase_newBase (cb->contents.base, p); | |
2075 | ret = ctype_makePointer (cbn); | |
2076 | ||
2077 | return ret; | |
2078 | } | |
2079 | case CT_FIXEDARRAY: | |
2080 | return (ctype_makeFixedArray (ctbase_newBase (cb->contents.farray->base, p), | |
2081 | cb->contents.farray->size)); | |
2082 | case CT_ARRAY: | |
2083 | return (ctype_makeArray (ctbase_newBase (cb->contents.base, p))); | |
2084 | case CT_FCN: | |
28bf4b0b | 2085 | return (ctype_makeRawFunction (ctbase_newBase (cb->contents.fcn->rval, p), |
885824d3 | 2086 | cb->contents.fcn->params)); |
2087 | case CT_CONJ: | |
2088 | return (ctype_makeConjAux (ctbase_newBase (cb->contents.conj->a, p), | |
2089 | ctbase_newBase (cb->contents.conj->b, p), | |
2090 | cb->contents.conj->isExplicit)); | |
2091 | default: | |
2092 | llcontbug (message ("ctbase_newBase: bad ctbase: %q", ctbase_unparse (cb))); | |
2093 | return (p); | |
2094 | } | |
2095 | BADEXIT; | |
2096 | } | |
2097 | ||
2098 | static ctype | |
2099 | ctbase_newBaseExpFcn (ctype c, ctype p) | |
2100 | { | |
2101 | ctbase cb = ctype_getCtbase (c); | |
2102 | ctbase tcb; | |
2103 | ctype ret, tmpct; | |
2104 | ctype fp = ctype_unknown; | |
2105 | uentryList ctargs = ctype_argsFunction (c); | |
2106 | ||
2107 | /* | |
2108 | ** okay, this is really ugly... | |
2109 | ** | |
2110 | ** pointers inside <expf> mean pointers to the function; | |
2111 | ** pointers outside <expf> are pointers to the return value; | |
2112 | ** because its a function there is one superfluous pointer. | |
2113 | */ | |
2114 | ||
2115 | /* | |
2116 | ** bf is a ctype, used to derived structure of cb | |
2117 | */ | |
2118 | ||
2119 | if (!ctbase_isFunction (cb)) | |
2120 | llbuglit ("ctbase_newBaseExpFcn: expFcn -> not a function"); | |
2121 | ||
28bf4b0b | 2122 | tmpct = ctype_getBaseType (ctype_getReturnType (c)); |
885824d3 | 2123 | |
2124 | /* | |
2125 | ** pointers before expfcn -> p are pointers to function, not result | |
2126 | ** | |
2127 | */ | |
2128 | ||
2129 | tcb = ctype_getCtbase (tmpct); | |
2130 | ||
2131 | llassert (ctbase_isDefined (tcb)); | |
2132 | tmpct = tcb->contents.base; | |
2133 | ||
2134 | /* | |
2135 | ** record pointers to base in fp | |
2136 | */ | |
2137 | ||
2138 | while (!ctype_isUnknown (tmpct)) | |
2139 | { | |
2140 | if (ctype_isExpFcn (tmpct)) { | |
2141 | ctbase ttcb = ctype_getCtbase (tmpct); | |
2142 | ||
2143 | /* | |
2144 | ** evs 2000-05-16: This is necessary to deal with function pointers in parens. | |
2145 | ** The whole function pointer parsing is a major kludge, but it seems to work, | |
2146 | ** and I'm only embarrassed by it when I haven't look at the C spec recently... | |
2147 | */ | |
2148 | ||
2149 | llassert (ctbase_isDefined (ttcb)); | |
2150 | tmpct = ttcb->contents.base; | |
2151 | llassert (!ctype_isUnknown (tmpct)); | |
2152 | } | |
2153 | ||
2154 | switch (ctype_getCtKind (tmpct)) | |
2155 | { | |
2156 | case CTK_PTR: | |
2157 | fp = ctype_makePointer (fp); | |
2158 | /*@switchbreak@*/ break; | |
2159 | case CTK_ARRAY: | |
2160 | fp = ctype_makeArray (fp); | |
2161 | /*@switchbreak@*/ break; | |
2162 | case CTK_COMPLEX: | |
2163 | { | |
2164 | ctbase fbase = ctype_getCtbase (tmpct); | |
2165 | ||
2166 | if (ctbase_isFunction (fbase)) | |
2167 | { | |
2168 | fp = ctype_makeFunction (fp, uentryList_copy (ctargs)); | |
2169 | ctargs = ctbase_argsFunction (fbase); | |
2170 | } | |
2171 | else | |
2172 | { | |
2173 | llbug | |
2174 | (message | |
2175 | ("ctbase_newBaseExpFcn: fixing expfunction: bad complex type: %s [base: %q]", | |
2176 | ctype_unparse (tmpct), ctbase_unparse (fbase))); | |
2177 | } | |
2178 | goto exitLoop; | |
2179 | } | |
2180 | default: | |
2181 | { | |
2182 | llcontbug | |
2183 | (message ("ctbase_newBaseExpFcn: fixing expfunction: bad type: %s", | |
2184 | ctype_unparse (tmpct))); | |
2185 | goto exitLoop; | |
2186 | } | |
2187 | } | |
2188 | tmpct = ctype_baseArrayPtr (tmpct); | |
2189 | } | |
2190 | ||
2191 | exitLoop: | |
28bf4b0b | 2192 | tmpct = ctype_getReturnType (c); |
885824d3 | 2193 | |
2194 | /* | |
2195 | ** pointers to expf are pointers to return value | |
2196 | */ | |
2197 | ||
2198 | while (!ctype_isExpFcn (tmpct)) | |
2199 | { | |
2200 | switch (ctype_getCtKind (tmpct)) | |
2201 | { | |
2202 | case CTK_PTR: | |
2203 | p = ctype_makePointer (p); | |
2204 | /*@switchbreak@*/ break; | |
2205 | case CTK_ARRAY: | |
2206 | p = ctype_makeArray (p); | |
2207 | /*@switchbreak@*/ break; | |
2208 | case CTK_COMPLEX: | |
2209 | { | |
2210 | ctbase fbase = ctype_getCtbase (tmpct); | |
2211 | ||
2212 | if (ctbase_isFunction (fbase)) | |
2213 | { | |
2214 | p = ctype_makeFunction (p, uentryList_copy (ctbase_argsFunction (fbase))); | |
2215 | } | |
2216 | else | |
2217 | { | |
2218 | llbug | |
2219 | (message | |
2220 | ("ctbase_newBaseExpFcn: fixing expfunction: bad complex type: %s", | |
2221 | ctype_unparse (tmpct))); | |
2222 | } | |
2223 | goto exitLoop2; | |
2224 | } | |
2225 | ||
2226 | default: | |
2227 | { | |
2228 | llcontbug | |
2229 | (message ("ctbase_newBaseExpFcn: fixing expfunction2: bad type: %t", | |
2230 | tmpct)); | |
2231 | goto exitLoop2; | |
2232 | } | |
2233 | } | |
2234 | tmpct = ctype_baseArrayPtr (tmpct); | |
2235 | } | |
2236 | ||
2237 | exitLoop2: | |
2238 | ||
2239 | /* | |
2240 | ** pointers to fp are pointers to function type | |
2241 | */ | |
2242 | ||
28bf4b0b | 2243 | ret = ctype_makeRawFunction (p, uentryList_copy (ctargs)); |
885824d3 | 2244 | |
2245 | while (ctype_getCtKind (fp) > CTK_PLAIN) | |
2246 | { | |
2247 | switch (ctype_getCtKind (fp)) | |
2248 | { | |
2249 | case CTK_PTR: | |
2250 | ret = ctype_makePointer (ret); | |
2251 | /*@switchbreak@*/ break; | |
2252 | case CTK_ARRAY: | |
2253 | ret = ctype_makeArray (ret); | |
2254 | /*@switchbreak@*/ break; | |
2255 | case CTK_COMPLEX: | |
2256 | { | |
2257 | ctbase fbase = ctype_getCtbase (fp); | |
2258 | ||
2259 | if (ctbase_isFunction (fbase)) | |
2260 | { | |
2261 | ret = | |
2262 | ctype_makeFunction (ret, | |
2263 | uentryList_copy (ctbase_argsFunction (fbase))); | |
2264 | } | |
2265 | else | |
2266 | { | |
2267 | BADBRANCH; | |
2268 | } | |
2269 | goto exitLoop3; | |
2270 | } | |
2271 | ||
2272 | default: | |
2273 | { | |
2274 | llcontbug (message ("post-fixing expfunction: bad type: %t", fp)); | |
2275 | goto exitLoop3; | |
2276 | } | |
2277 | } | |
2278 | fp = ctype_baseArrayPtr (fp); | |
2279 | } | |
2280 | ||
2281 | exitLoop3: | |
2282 | return (ret); | |
2283 | } | |
2284 | ||
2285 | /* | |
2286 | ** returns lowest level base of c: plain type | |
2287 | */ | |
2288 | ||
2289 | static /*@notnull@*/ /*@only@*/ ctbase | |
2290 | ctbase_getBaseType (/*@notnull@*/ ctbase c) | |
2291 | { | |
2292 | switch (c->type) | |
2293 | { | |
2294 | case CT_UNKNOWN: | |
2295 | case CT_PRIM: | |
2296 | case CT_USER: | |
2297 | case CT_ENUM: | |
2298 | case CT_ENUMLIST: | |
2299 | case CT_BOOL: | |
2300 | case CT_ABST: | |
2301 | case CT_FCN: | |
2302 | case CT_STRUCT: | |
2303 | case CT_UNION: | |
2304 | return (ctbase_copy (c)); | |
2305 | ||
2306 | case CT_PTR: | |
2307 | case CT_ARRAY: | |
2308 | return (ctbase_getBaseType (ctype_getCtbaseSafe (c->contents.base))); | |
2309 | ||
2310 | case CT_FIXEDARRAY: | |
2311 | return (ctbase_getBaseType (ctype_getCtbaseSafe (c->contents.farray->base))); | |
2312 | case CT_CONJ: /* base type of A conj branch? */ | |
2313 | return (ctbase_getBaseType (ctype_getCtbaseSafe (c->contents.conj->a))); | |
2314 | case CT_EXPFCN: | |
2315 | return (ctbase_copy (c)); | |
2316 | ||
2317 | default: | |
2318 | llfatalbug (message ("ctbase_getBaseType: bad ctbase: %q", ctbase_unparse (c))); | |
2319 | } | |
2320 | ||
2321 | BADEXIT; | |
2322 | } | |
2323 | ||
2324 | static int | |
2325 | ctbase_compare (ctbase c1, ctbase c2, bool strict) | |
2326 | { | |
2327 | ctuid c1tid, c2tid; | |
2328 | ||
2329 | if (ctbase_isUndefined (c1) || ctbase_isUndefined (c2)) | |
2330 | { | |
2331 | llcontbuglit ("ctbase_compare: undefined ctbase"); | |
2332 | return -1; | |
2333 | } | |
2334 | ||
2335 | c1tid = c1->type; | |
2336 | c2tid = c2->type; | |
2337 | ||
2338 | if (c1tid < c2tid) | |
2339 | return -1; | |
2340 | if (c1tid > c2tid) | |
2341 | return 1; | |
2342 | ||
2343 | switch (c1tid) | |
2344 | { | |
2345 | case CT_UNKNOWN: | |
2346 | return 0; | |
2347 | case CT_PRIM: | |
2348 | return (int_compare (c1->contents.prim, c2->contents.prim)); | |
2349 | case CT_BOOL: | |
2350 | return 0; | |
2351 | case CT_USER: | |
2352 | return (int_compare (c1->contents.tid, c2->contents.tid)); | |
2353 | case CT_ENUMLIST: | |
2354 | return 1; | |
2355 | case CT_ENUM: /* for now, keep like abstract */ | |
2356 | case CT_ABST: | |
2357 | return (int_compare (c1->contents.tid, c2->contents.tid)); | |
2358 | case CT_PTR: | |
2359 | return (ctype_compare (c1->contents.base, c2->contents.base)); | |
2360 | case CT_FIXEDARRAY: | |
2361 | INTCOMPARERETURN (c1->contents.farray->size, c2->contents.farray->size); | |
2362 | ||
2363 | return (ctype_compare (c1->contents.farray->base, | |
2364 | c2->contents.farray->base)); | |
2365 | case CT_ARRAY: | |
2366 | return (ctype_compare (c1->contents.base, c2->contents.base)); | |
2367 | case CT_FCN: | |
2368 | { | |
2369 | COMPARERETURN (ctype_compare (c1->contents.fcn->rval, c2->contents.fcn->rval)); | |
2370 | ||
2371 | if (strict) | |
2372 | { | |
2373 | return (uentryList_compareStrict (c1->contents.fcn->params, | |
2374 | c2->contents.fcn->params)); | |
2375 | } | |
2376 | else | |
2377 | { | |
2378 | return (uentryList_compareParams (c1->contents.fcn->params, | |
2379 | c2->contents.fcn->params)); | |
2380 | } | |
2381 | } | |
2382 | case CT_EXPFCN: | |
2383 | return (ctype_compare (c1->contents.base, c2->contents.base)); | |
2384 | case CT_STRUCT: | |
2385 | case CT_UNION: | |
a0a162cd | 2386 | /* evs 2000-07-28: this block was missing! */ |
2387 | if (strict) { | |
2388 | int ncmp = cstring_compare (c1->contents.su->name, | |
2389 | c2->contents.su->name); | |
2390 | ||
2391 | if (ncmp != 0) { | |
2392 | if (isFakeTag (c1->contents.su->name) | |
2393 | && isFakeTag (c2->contents.su->name)) { | |
2394 | ; /* If they are both fake struct tags, don't require match. */ | |
2395 | } else { | |
2396 | return ncmp; | |
2397 | } | |
2398 | } | |
2399 | } | |
2400 | ||
28bf4b0b | 2401 | DPRINTF (("Comparing fields: %s / %s", |
2402 | ctbase_unparse (c1), | |
2403 | ctbase_unparse (c2))); | |
2404 | ||
885824d3 | 2405 | return (uentryList_compareFields (c1->contents.su->fields, |
2406 | c2->contents.su->fields)); | |
2407 | case CT_CONJ: | |
2408 | { | |
2409 | COMPARERETURN (ctype_compare (c1->contents.conj->a, | |
2410 | c2->contents.conj->a)); | |
2411 | COMPARERETURN (ctype_compare (c1->contents.conj->b, | |
2412 | c2->contents.conj->b)); | |
2413 | return (bool_compare (c1->contents.conj->isExplicit, | |
2414 | c2->contents.conj->isExplicit)); | |
2415 | } | |
2416 | } | |
2417 | BADEXIT; | |
2418 | } | |
2419 | ||
2420 | static int | |
2421 | ctbase_compareStrict (/*@notnull@*/ ctbase c1, /*@notnull@*/ ctbase c2) | |
2422 | { | |
2423 | return (ctbase_compare (c1, c2, TRUE)); | |
2424 | } | |
2425 | ||
2426 | static bool ctbase_equivStrict (/*@notnull@*/ ctbase c1, /*@notnull@*/ ctbase c2) | |
2427 | { | |
2428 | return (ctbase_compareStrict (c1,c2) == 0); | |
2429 | } | |
2430 | ||
2431 | static bool ctbase_equiv (/*@notnull@*/ ctbase c1, /*@notnull@*/ ctbase c2) | |
2432 | { | |
2433 | return (ctbase_compare (c1, c2, FALSE) == 0); | |
2434 | } | |
2435 | ||
2436 | static bool | |
2437 | ctbase_isKind (/*@notnull@*/ ctbase c, ctuid kind) | |
2438 | { | |
2439 | ctuid ck = c->type; | |
2440 | ||
2441 | if (ck == kind) | |
2442 | return TRUE; | |
2443 | ||
2444 | if (ck == CT_CONJ) | |
2445 | return (ctbase_isKind (ctype_getCtbaseSafe (c->contents.conj->a), kind) || | |
2446 | ctbase_isKind (ctype_getCtbaseSafe (c->contents.conj->b), kind)); | |
2447 | ||
2448 | return FALSE; | |
2449 | } | |
2450 | ||
2451 | static bool | |
2452 | ctbase_isKind2 (/*@notnull@*/ ctbase c, ctuid kind1, ctuid kind2) | |
2453 | { | |
2454 | ctuid ck = c->type; | |
2455 | ||
2456 | if (ck == kind1 || ck == kind2) | |
2457 | return TRUE; | |
2458 | ||
2459 | if (ck == CT_CONJ) | |
2460 | return (ctbase_isKind2 (ctype_getCtbaseSafe (c->contents.conj->a), kind1, kind2) || | |
2461 | ctbase_isKind2 (ctype_getCtbaseSafe (c->contents.conj->b), kind1, kind2)); | |
2462 | ||
2463 | return FALSE; | |
2464 | } | |
2465 | ||
2466 | static bool | |
2467 | ctbase_isAbstract (/*@notnull@*/ ctbase c) | |
2468 | { | |
2469 | return (c->type == CT_ABST); | |
2470 | } | |
2471 | ||
2472 | static bool ctbase_isUA (ctbase c) | |
2473 | { | |
2474 | return (ctbase_isDefined (c) && ((c)->type == CT_USER || (c)->type == CT_ABST)); | |
2475 | } | |
2476 | ||
2477 | static bool | |
2478 | ctbase_almostEqual (ctbase c1, ctbase c2) | |
2479 | { | |
2480 | ctuid c1tid, c2tid; | |
2481 | ||
2482 | /* undefined types never match */ | |
2483 | ||
2484 | if (ctbase_isUndefined (c1) || ctbase_isUndefined (c2)) | |
2485 | return FALSE; | |
2486 | ||
2487 | c1tid = c1->type; | |
2488 | c2tid = c2->type; | |
2489 | ||
2490 | if (c1tid == CT_FIXEDARRAY && c2tid == CT_ARRAY) | |
2491 | { | |
2492 | return (ctbase_almostEqual (ctype_getCtbase (c1->contents.farray->base), | |
2493 | ctype_getCtbase (c2->contents.base))); | |
2494 | } | |
2495 | ||
2496 | if (c2tid == CT_FIXEDARRAY && c1tid == CT_ARRAY) | |
2497 | { | |
2498 | return (ctbase_almostEqual (ctype_getCtbase (c1->contents.base), | |
2499 | ctype_getCtbase (c2->contents.farray->base))); | |
2500 | } | |
2501 | ||
2502 | if (c1tid != c2tid) | |
2503 | return FALSE; | |
2504 | ||
2505 | switch (c1tid) | |
2506 | { | |
2507 | case CT_UNKNOWN: | |
2508 | return TRUE; | |
2509 | case CT_PRIM: | |
2510 | return (cprim_equal (c1->contents.prim, c2->contents.prim)); | |
2511 | case CT_BOOL: | |
2512 | return TRUE; | |
2513 | case CT_ABST: | |
2514 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
2515 | case CT_USER: | |
2516 | return (typeId_equal (c1->contents.tid, c2->contents.tid)); | |
2517 | case CT_ENUM: | |
2518 | return (cstring_equal (c1->contents.cenum->tag, c2->contents.cenum->tag)); | |
2519 | case CT_PTR: | |
2520 | return (ctype_almostEqual (c1->contents.base, c2->contents.base)); | |
2521 | case CT_FIXEDARRAY: | |
2522 | return (ctype_almostEqual (c1->contents.farray->base, | |
2523 | c2->contents.farray->base)); | |
2524 | case CT_ARRAY: | |
2525 | return (ctype_almostEqual (c1->contents.base, c2->contents.base)); | |
2526 | case CT_FCN: | |
2527 | return (ctype_almostEqual (c1->contents.fcn->rval, c2->contents.fcn->rval) | |
2528 | && uentryList_matchParams (c1->contents.fcn->params, | |
2529 | c2->contents.fcn->params, FALSE, TRUE)); | |
2530 | case CT_STRUCT: | |
2531 | case CT_UNION: | |
2532 | if (!cstring_isEmpty (c1->contents.su->name)) | |
2533 | { | |
2534 | return (cstring_equal (c1->contents.su->name, c2->contents.su->name)); | |
2535 | } | |
2536 | else | |
2537 | { | |
2538 | if (!cstring_isEmpty (c2->contents.su->name)) | |
2539 | { | |
2540 | return FALSE; | |
2541 | } | |
2542 | ||
2543 | llcontbuglit ("ctbase_almostEqual: match fields"); | |
2544 | return (FALSE); | |
2545 | } | |
2546 | default: | |
2547 | llcontbug (message ("ctbase_almostEqual: unknown type: %d\n", (int)c1tid)); | |
2548 | return (FALSE); | |
2549 | } | |
2550 | } | |
28bf4b0b | 2551 | |
2552 | /*drl added July 02, 001 | |
2553 | called by ctype_getArraySize | |
2554 | */ | |
2555 | ||
37ae0b5e | 2556 | size_t ctbase_getArraySize (ctbase ctb) |
28bf4b0b | 2557 | { |
37ae0b5e | 2558 | /*drl 1/25/2002 fixed discovered by Jim Francis */ |
0e5499ac | 2559 | ctbase r; |
28bf4b0b | 2560 | |
0e5499ac | 2561 | llassert (ctbase_isDefined (ctb) ); |
2562 | r = ctbase_realType (ctb); | |
2563 | llassert (ctbase_isFixedArray(r) ); | |
2564 | ||
0e5499ac | 2565 | return (r->contents.farray->size); |
28bf4b0b | 2566 | } |