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