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dd3b648e RP |
1 | /* Demangler for GNU C++ |
2 | Copyright (C) 1989 Free Software Foundation, Inc. | |
3 | written by James Clark (jjc@jclark.uucp) | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 1, or (at your option) | |
8 | any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
18 | ||
19 | /* This is for g++ 1.36.1 (November 6 version). It will probably | |
20 | require changes for any other version. | |
21 | ||
22 | Modified for g++ 1.36.2 (November 18 version). */ | |
23 | ||
24 | /* This file exports one function | |
25 | ||
26 | char *cplus_demangle (const char *name, int mode) | |
27 | ||
28 | If NAME is a mangled function name produced by GNU C++, then | |
29 | a pointer to a malloced string giving a C++ representation | |
30 | of the name will be returned; otherwise NULL will be returned. | |
31 | It is the caller's responsibility to free the string which | |
32 | is returned. | |
33 | ||
34 | If MODE > 0, then ANSI qualifiers such as `const' and `void' are output. | |
35 | Otherwise they are not. | |
36 | If MODE >= 0, parameters are emitted; otherwise not. | |
37 | ||
38 | For example, | |
39 | ||
40 | cplus_demangle ("foo__1Ai", 0) => "A::foo(int)" | |
41 | cplus_demangle ("foo__1Ai", 1) => "A::foo(int)" | |
42 | cplus_demangle ("foo__1Ai", -1) => "A::foo" | |
43 | ||
44 | cplus_demangle ("foo__1Afe", 0) => "A::foo(float,...)" | |
45 | cplus_demangle ("foo__1Afe", 1) => "A::foo(float,...)" | |
46 | cplus_demangle ("foo__1Afe", -1) => "A::foo" | |
47 | ||
48 | This file imports xmalloc and xrealloc, which are like malloc and | |
49 | realloc except that they generate a fatal error if there is no | |
50 | available memory. */ | |
51 | ||
52 | /* define this if names don't start with _ */ | |
53 | /* #define nounderscore 1 */ | |
54 | ||
f88e7af8 JK |
55 | /* This is '$' on systems where the assembler can deal with that. |
56 | Where the assembler can't, it's '.' (but on many systems '.' is | |
57 | used for other things). */ | |
58 | #if !defined (CPLUS_MARKER) | |
59 | #define CPLUS_MARKER '$' | |
60 | #endif | |
61 | ||
dd3b648e RP |
62 | #include <stdio.h> |
63 | #include <ctype.h> | |
64 | ||
65 | #ifdef USG | |
66 | #include <memory.h> | |
67 | #include <string.h> | |
68 | #else | |
69 | #include <strings.h> | |
70 | #define memcpy(s1, s2, n) bcopy ((s2), (s1), (n)) | |
71 | #define memcmp(s1, s2, n) bcmp ((s2), (s1), (n)) | |
72 | #define strchr index | |
73 | #define strrchr rindex | |
74 | #endif | |
75 | ||
76 | #ifndef __STDC__ | |
77 | #define const | |
78 | #endif | |
79 | ||
80 | #ifdef __STDC__ | |
81 | extern char *cplus_demangle (const char *type, int mode); | |
82 | #else | |
83 | extern char *cplus_demangle (); | |
84 | #endif | |
85 | ||
86 | #ifdef __STDC__ | |
87 | extern char *xmalloc (int); | |
88 | extern char *xrealloc (char *, int); | |
89 | extern void free (char *); | |
90 | #else | |
91 | extern char *xmalloc (); | |
92 | extern char *xrealloc (); | |
93 | extern void free (); | |
94 | #endif | |
95 | ||
96 | static char **typevec = 0; | |
97 | static int ntypes = 0; | |
98 | static int typevec_size = 0; | |
99 | ||
100 | static struct { | |
101 | const char *in; | |
102 | const char *out; | |
103 | } optable[] = { | |
104 | "new", " new", | |
105 | "delete", " delete", | |
106 | "ne", "!=", | |
107 | "eq", "==", | |
108 | "ge", ">=", | |
109 | "gt", ">", | |
110 | "le", "<=", | |
111 | "lt", "<", | |
112 | "plus", "+", | |
113 | "minus", "-", | |
114 | "mult", "*", | |
115 | "convert", "+", /* unary + */ | |
116 | "negate", "-", /* unary - */ | |
117 | "trunc_mod", "%", | |
118 | "trunc_div", "/", | |
119 | "truth_andif", "&&", | |
120 | "truth_orif", "||", | |
121 | "truth_not", "!", | |
122 | "postincrement", "++", | |
123 | "postdecrement", "--", | |
124 | "bit_ior", "|", | |
125 | "bit_xor", "^", | |
126 | "bit_and", "&", | |
127 | "bit_not", "~", | |
128 | "call", "()", | |
129 | "cond", "?:", | |
130 | "alshift", "<<", | |
131 | "arshift", ">>", | |
132 | "component", "->", | |
133 | "indirect", "*", | |
134 | "method_call", "->()", | |
135 | "addr", "&", /* unary & */ | |
136 | "array", "[]", | |
137 | "nop", "", /* for operator= */ | |
138 | }; | |
139 | ||
140 | /* Beware: these aren't '\0' terminated. */ | |
141 | ||
142 | typedef struct { | |
143 | char *b; /* pointer to start of string */ | |
144 | char *p; /* pointer after last character */ | |
145 | char *e; /* pointer after end of allocated space */ | |
146 | } string; | |
147 | ||
148 | #ifdef __STDC__ | |
149 | static void string_need (string *s, int n); | |
150 | static void string_delete (string *s); | |
151 | static void string_init (string *s); | |
152 | static void string_clear (string *s); | |
153 | static int string_empty (string *s); | |
154 | static void string_append (string *p, const char *s); | |
155 | static void string_appends (string *p, string *s); | |
156 | static void string_appendn (string *p, const char *s, int n); | |
157 | static void string_prepend (string *p, const char *s); | |
158 | #if 0 | |
159 | static void string_prepends (string *p, string *s); | |
160 | #endif | |
161 | static void string_prependn (string *p, const char *s, int n); | |
162 | static int get_count (const char **type, int *count); | |
163 | static int do_args (const char **type, string *decl, int arg_mode); | |
164 | static int do_type (const char **type, string *result, int arg_mode); | |
165 | static int do_arg (const char **type, string *result, int arg_mode); | |
166 | static void munge_function_name (string *name, int arg_mode); | |
167 | static void remember_type (const char *type, int len); | |
168 | #else | |
169 | static void string_need (); | |
170 | static void string_delete (); | |
171 | static void string_init (); | |
172 | static void string_clear (); | |
173 | static int string_empty (); | |
174 | static void string_append (); | |
175 | static void string_appends (); | |
176 | static void string_appendn (); | |
177 | static void string_prepend (); | |
178 | #if 0 | |
179 | static void string_prepends (); | |
180 | #endif | |
181 | static void string_prependn (); | |
182 | static int get_count (); | |
183 | static int do_args (); | |
184 | static int do_type (); | |
185 | static int do_arg (); | |
186 | static int do_args (); | |
187 | static void munge_function_name (); | |
188 | static void remember_type (); | |
189 | #endif | |
190 | ||
191 | char * | |
192 | cplus_demangle (type, arg_mode) | |
193 | const char *type; | |
194 | int arg_mode; | |
195 | { | |
196 | string decl; | |
197 | int n; | |
198 | int success = 0; | |
199 | int constructor = 0; | |
200 | int const_flag = 0; | |
201 | int i; | |
202 | const char *p; | |
203 | #ifndef LONGERNAMES | |
204 | const char *premangle; | |
205 | #endif | |
206 | ||
207 | # define print_ansi_qualifiers (arg_mode > 0) | |
208 | # define print_arg_types (arg_mode >= 0) | |
209 | ||
210 | if (type == NULL || *type == '\0') | |
211 | return NULL; | |
212 | #ifndef nounderscore | |
213 | if (*type++ != '_') | |
214 | return NULL; | |
215 | #endif | |
216 | p = type; | |
217 | while (*p != '\0' && !(*p == '_' && p[1] == '_')) | |
218 | p++; | |
219 | if (*p == '\0') | |
220 | { | |
221 | /* destructor */ | |
f88e7af8 | 222 | if (type[0] == '_' && type[1] == CPLUS_MARKER && type[2] == '_') |
dd3b648e RP |
223 | { |
224 | int n = (strlen (type) - 3)*2 + 3 + 2 + 1; | |
225 | char *tem = (char *) xmalloc (n); | |
226 | strcpy (tem, type + 3); | |
227 | strcat (tem, "::~"); | |
228 | strcat (tem, type + 3); | |
229 | strcat (tem, "()"); | |
230 | return tem; | |
231 | } | |
232 | /* static data member */ | |
f88e7af8 | 233 | if (*type != '_' && (p = strchr (type, CPLUS_MARKER)) != NULL) |
dd3b648e RP |
234 | { |
235 | int n = strlen (type) + 2; | |
236 | char *tem = (char *) xmalloc (n); | |
237 | memcpy (tem, type, p - type); | |
238 | strcpy (tem + (p - type), "::"); | |
239 | strcpy (tem + (p - type) + 2, p + 1); | |
240 | return tem; | |
241 | } | |
242 | /* virtual table "_vt$" */ | |
f88e7af8 | 243 | if (type[0] == '_' && type[1] == 'v' && type[2] == 't' && type[3] == CPLUS_MARKER) |
dd3b648e RP |
244 | { |
245 | int n = strlen (type + 4) + 14 + 1; | |
246 | char *tem = (char *) xmalloc (n); | |
247 | strcpy (tem, type + 4); | |
248 | strcat (tem, " virtual table"); | |
249 | return tem; | |
250 | } | |
251 | return NULL; | |
252 | } | |
253 | ||
254 | string_init (&decl); | |
255 | ||
256 | if (p == type) | |
257 | { | |
258 | if (!isdigit (p[2])) | |
259 | { | |
260 | string_delete (&decl); | |
261 | return NULL; | |
262 | } | |
263 | constructor = 1; | |
264 | } | |
265 | else | |
266 | { | |
267 | string_appendn (&decl, type, p - type); | |
268 | munge_function_name (&decl, arg_mode); | |
269 | } | |
270 | p += 2; | |
271 | ||
272 | #ifndef LONGERNAMES | |
273 | premangle = p; | |
274 | #endif | |
275 | switch (*p) | |
276 | { | |
277 | case 'C': | |
278 | /* a const member function */ | |
279 | if (!isdigit (p[1])) | |
280 | { | |
281 | string_delete (&decl); | |
282 | return NULL; | |
283 | } | |
284 | p += 1; | |
285 | const_flag = 1; | |
286 | /* fall through */ | |
287 | case '0': | |
288 | case '1': | |
289 | case '2': | |
290 | case '3': | |
291 | case '4': | |
292 | case '5': | |
293 | case '6': | |
294 | case '7': | |
295 | case '8': | |
296 | case '9': | |
297 | n = 0; | |
298 | do | |
299 | { | |
300 | n *= 10; | |
301 | n += *p - '0'; | |
302 | p += 1; | |
303 | } | |
304 | while (isdigit (*p)); | |
305 | if (strlen (p) < n) | |
306 | { | |
307 | string_delete (&decl); | |
308 | return NULL; | |
309 | } | |
310 | if (constructor) | |
311 | { | |
312 | string_appendn (&decl, p, n); | |
313 | string_append (&decl, "::"); | |
314 | string_appendn (&decl, p, n); | |
315 | } | |
316 | else | |
317 | { | |
318 | string_prepend (&decl, "::"); | |
319 | string_prependn (&decl, p, n); | |
320 | } | |
321 | p += n; | |
322 | #ifndef LONGERNAMES | |
323 | remember_type (premangle, p - premangle); | |
324 | #endif | |
325 | success = do_args (&p, &decl, arg_mode); | |
326 | if (const_flag && print_arg_types) | |
327 | string_append (&decl, " const"); | |
328 | break; | |
329 | case 'F': | |
330 | p += 1; | |
331 | success = do_args (&p, &decl, arg_mode); | |
332 | break; | |
333 | } | |
334 | ||
335 | for (i = 0; i < ntypes; i++) | |
336 | if (typevec[i] != NULL) | |
337 | free (typevec[i]); | |
338 | ntypes = 0; | |
339 | if (typevec != NULL) | |
340 | { | |
341 | free ((char *)typevec); | |
342 | typevec = NULL; | |
343 | typevec_size = 0; | |
344 | } | |
345 | ||
346 | if (success) | |
347 | { | |
348 | string_appendn (&decl, "", 1); | |
349 | return decl.b; | |
350 | } | |
351 | else | |
352 | { | |
353 | string_delete (&decl); | |
354 | return NULL; | |
355 | } | |
356 | } | |
357 | ||
358 | static int | |
359 | get_count (type, count) | |
360 | const char **type; | |
361 | int *count; | |
362 | { | |
363 | if (!isdigit (**type)) | |
364 | return 0; | |
365 | *count = **type - '0'; | |
366 | *type += 1; | |
367 | /* see flush_repeats in cplus-method.c */ | |
368 | if (isdigit (**type)) | |
369 | { | |
370 | const char *p = *type; | |
371 | int n = *count; | |
372 | do | |
373 | { | |
374 | n *= 10; | |
375 | n += *p - '0'; | |
376 | p += 1; | |
377 | } | |
378 | while (isdigit (*p)); | |
379 | if (*p == '_') | |
380 | { | |
381 | *type = p + 1; | |
382 | *count = n; | |
383 | } | |
384 | } | |
385 | return 1; | |
386 | } | |
387 | ||
388 | /* result will be initialised here; it will be freed on failure */ | |
389 | ||
390 | static int | |
391 | do_type (type, result, arg_mode) | |
392 | const char **type; | |
393 | string *result; | |
394 | int arg_mode; | |
395 | { | |
396 | int n; | |
397 | int done; | |
398 | int non_empty = 0; | |
399 | int success; | |
400 | string decl; | |
401 | const char *remembered_type; | |
402 | ||
403 | string_init (&decl); | |
404 | string_init (result); | |
405 | ||
406 | done = 0; | |
407 | success = 1; | |
408 | while (success && !done) | |
409 | { | |
410 | int member; | |
411 | switch (**type) | |
412 | { | |
413 | case 'P': | |
414 | *type += 1; | |
415 | string_prepend (&decl, "*"); | |
416 | break; | |
417 | ||
418 | case 'R': | |
419 | *type += 1; | |
420 | string_prepend (&decl, "&"); | |
421 | break; | |
422 | ||
423 | case 'T': | |
424 | *type += 1; | |
425 | if (!get_count (type, &n) || n >= ntypes) | |
426 | success = 0; | |
427 | else | |
428 | { | |
429 | remembered_type = typevec[n]; | |
430 | type = &remembered_type; | |
431 | } | |
432 | break; | |
433 | ||
434 | case 'F': | |
435 | *type += 1; | |
436 | if (!string_empty (&decl) && decl.b[0] == '*') | |
437 | { | |
438 | string_prepend (&decl, "("); | |
439 | string_append (&decl, ")"); | |
440 | } | |
441 | if (!do_args (type, &decl, arg_mode) || **type != '_') | |
442 | success = 0; | |
443 | else | |
444 | *type += 1; | |
445 | break; | |
446 | ||
447 | case 'M': | |
448 | case 'O': | |
449 | { | |
450 | int constp = 0; | |
451 | int volatilep = 0; | |
452 | ||
453 | member = **type == 'M'; | |
454 | *type += 1; | |
455 | if (!isdigit (**type)) | |
456 | { | |
457 | success = 0; | |
458 | break; | |
459 | } | |
460 | n = 0; | |
461 | do | |
462 | { | |
463 | n *= 10; | |
464 | n += **type - '0'; | |
465 | *type += 1; | |
466 | } | |
467 | while (isdigit (**type)); | |
468 | if (strlen (*type) < n) | |
469 | { | |
470 | success = 0; | |
471 | break; | |
472 | } | |
473 | string_append (&decl, ")"); | |
474 | string_prepend (&decl, "::"); | |
475 | string_prependn (&decl, *type, n); | |
476 | string_prepend (&decl, "("); | |
477 | *type += n; | |
478 | if (member) | |
479 | { | |
480 | if (**type == 'C') | |
481 | { | |
482 | *type += 1; | |
483 | constp = 1; | |
484 | } | |
485 | if (**type == 'V') | |
486 | { | |
487 | *type += 1; | |
488 | volatilep = 1; | |
489 | } | |
490 | if (*(*type)++ != 'F') | |
491 | { | |
492 | success = 0; | |
493 | break; | |
494 | } | |
495 | } | |
496 | if ((member && !do_args (type, &decl, arg_mode)) || **type != '_') | |
497 | { | |
498 | success = 0; | |
499 | break; | |
500 | } | |
501 | *type += 1; | |
502 | if (! print_ansi_qualifiers) | |
503 | break; | |
504 | if (constp) | |
505 | { | |
506 | if (non_empty) | |
507 | string_append (&decl, " "); | |
508 | else | |
509 | non_empty = 1; | |
510 | string_append (&decl, "const"); | |
511 | } | |
512 | if (volatilep) | |
513 | { | |
514 | if (non_empty) | |
515 | string_append (&decl, " "); | |
516 | else | |
517 | non_empty = 1; | |
518 | string_append (&decl, "volatile"); | |
519 | } | |
520 | break; | |
521 | } | |
522 | ||
523 | case 'C': | |
524 | if ((*type)[1] == 'P') | |
525 | { | |
526 | *type += 1; | |
527 | if (print_ansi_qualifiers) | |
528 | { | |
529 | if (!string_empty (&decl)) | |
530 | string_prepend (&decl, " "); | |
531 | string_prepend (&decl, "const"); | |
532 | } | |
533 | break; | |
534 | } | |
535 | ||
536 | /* fall through */ | |
537 | default: | |
538 | done = 1; | |
539 | break; | |
540 | } | |
541 | } | |
542 | ||
543 | done = 0; | |
544 | non_empty = 0; | |
545 | while (success && !done) | |
546 | { | |
547 | switch (**type) | |
548 | { | |
549 | case 'C': | |
550 | *type += 1; | |
551 | if (print_ansi_qualifiers) | |
552 | { | |
553 | if (non_empty) | |
554 | string_append (result, " "); | |
555 | else | |
556 | non_empty = 1; | |
557 | string_append (result, "const"); | |
558 | } | |
559 | break; | |
560 | case 'U': | |
561 | *type += 1; | |
562 | if (non_empty) | |
563 | string_append (result, " "); | |
564 | else | |
565 | non_empty = 1; | |
566 | string_append (result, "unsigned"); | |
567 | break; | |
568 | case 'V': | |
569 | *type += 1; | |
570 | if (print_ansi_qualifiers) | |
571 | { | |
572 | if (non_empty) | |
573 | string_append (result, " "); | |
574 | else | |
575 | non_empty = 1; | |
576 | string_append (result, "volatile"); | |
577 | } | |
578 | break; | |
579 | default: | |
580 | done = 1; | |
581 | break; | |
582 | } | |
583 | } | |
584 | ||
585 | if (success) | |
586 | switch (**type) | |
587 | { | |
588 | case '\0': | |
589 | case '_': | |
590 | break; | |
591 | case 'v': | |
592 | *type += 1; | |
593 | if (non_empty) | |
594 | string_append (result, " "); | |
595 | string_append (result, "void"); | |
596 | break; | |
597 | case 'x': | |
598 | *type += 1; | |
599 | if (non_empty) | |
600 | string_append (result, " "); | |
601 | string_append (result, "long long"); | |
602 | break; | |
603 | case 'l': | |
604 | *type += 1; | |
605 | if (non_empty) | |
606 | string_append (result, " "); | |
607 | string_append (result, "long"); | |
608 | break; | |
609 | case 'i': | |
610 | *type += 1; | |
611 | if (non_empty) | |
612 | string_append (result, " "); | |
613 | string_append (result, "int"); | |
614 | break; | |
615 | case 's': | |
616 | *type += 1; | |
617 | if (non_empty) | |
618 | string_append (result, " "); | |
619 | string_append (result, "short"); | |
620 | break; | |
621 | case 'c': | |
622 | *type += 1; | |
623 | if (non_empty) | |
624 | string_append (result, " "); | |
625 | string_append (result, "char"); | |
626 | break; | |
627 | case 'r': | |
628 | *type += 1; | |
629 | if (non_empty) | |
630 | string_append (result, " "); | |
631 | string_append (result, "long double"); | |
632 | break; | |
633 | case 'd': | |
634 | *type += 1; | |
635 | if (non_empty) | |
636 | string_append (result, " "); | |
637 | string_append (result, "double"); | |
638 | break; | |
639 | case 'f': | |
640 | *type += 1; | |
641 | if (non_empty) | |
642 | string_append (result, " "); | |
643 | string_append (result, "float"); | |
644 | break; | |
645 | case 'G': | |
646 | *type += 1; | |
647 | if (!isdigit (**type)) | |
648 | { | |
649 | success = 0; | |
650 | break; | |
651 | } | |
652 | /* fall through */ | |
653 | case '0': | |
654 | case '1': | |
655 | case '2': | |
656 | case '3': | |
657 | case '4': | |
658 | case '5': | |
659 | case '6': | |
660 | case '7': | |
661 | case '8': | |
662 | case '9': | |
663 | n = 0; | |
664 | do | |
665 | { | |
666 | n *= 10; | |
667 | n += **type - '0'; | |
668 | *type += 1; | |
669 | } | |
670 | while (isdigit (**type)); | |
671 | if (strlen (*type) < n) | |
672 | { | |
673 | success = 0; | |
674 | break; | |
675 | } | |
676 | if (non_empty) | |
677 | string_append (result, " "); | |
678 | string_appendn (result, *type, n); | |
679 | *type += n; | |
680 | break; | |
681 | default: | |
682 | success = 0; | |
683 | break; | |
684 | } | |
685 | ||
686 | if (success) | |
687 | { | |
688 | if (!string_empty (&decl)) | |
689 | { | |
690 | string_append (result, " "); | |
691 | string_appends (result, &decl); | |
692 | } | |
693 | string_delete (&decl); | |
694 | return 1; | |
695 | } | |
696 | else | |
697 | { | |
698 | string_delete (&decl); | |
699 | string_delete (result); | |
700 | return 0; | |
701 | } | |
702 | } | |
703 | ||
704 | /* `result' will be initialised in do_type; it will be freed on failure */ | |
705 | ||
706 | static int | |
707 | do_arg (type, result, arg_mode) | |
708 | const char **type; | |
709 | string *result; | |
710 | int arg_mode; | |
711 | { | |
712 | const char *start = *type; | |
713 | ||
714 | if (!do_type (type, result, arg_mode)) | |
715 | return 0; | |
716 | remember_type (start, *type - start); | |
717 | return 1; | |
718 | } | |
719 | ||
720 | static void | |
721 | remember_type (start, len) | |
722 | const char *start; | |
723 | int len; | |
724 | { | |
725 | char *tem; | |
726 | ||
727 | if (ntypes >= typevec_size) | |
728 | { | |
729 | if (typevec_size == 0) | |
730 | { | |
731 | typevec_size = 3; | |
732 | typevec = (char **) xmalloc (sizeof (char*)*typevec_size); | |
733 | } | |
734 | else | |
735 | { | |
736 | typevec_size *= 2; | |
737 | typevec = (char **) xrealloc ((char *)typevec, sizeof (char*)*typevec_size); | |
738 | } | |
739 | } | |
740 | tem = (char *) xmalloc (len + 1); | |
741 | memcpy (tem, start, len); | |
742 | tem[len] = '\0'; | |
743 | typevec[ntypes++] = tem; | |
744 | } | |
745 | ||
746 | /* `decl' must be already initialised, usually non-empty; | |
747 | it won't be freed on failure */ | |
748 | ||
749 | static int | |
750 | do_args (type, decl, arg_mode) | |
751 | const char **type; | |
752 | string *decl; | |
753 | int arg_mode; | |
754 | { | |
755 | string arg; | |
756 | int need_comma = 0; | |
757 | ||
758 | if (print_arg_types) | |
759 | string_append (decl, "("); | |
760 | ||
761 | while (**type != '_' && **type != '\0' && **type != 'e' && **type != 'v') | |
762 | { | |
763 | if (**type == 'N') | |
764 | { | |
765 | int r; | |
766 | int t; | |
767 | *type += 1; | |
768 | if (!get_count (type, &r) || !get_count (type, &t) || t >= ntypes) | |
769 | return 0; | |
770 | while (--r >= 0) | |
771 | { | |
772 | const char *tem = typevec[t]; | |
773 | if (need_comma && print_arg_types) | |
774 | string_append (decl, ", "); | |
775 | if (!do_arg (&tem, &arg, arg_mode)) | |
776 | return 0; | |
777 | if (print_arg_types) | |
778 | string_appends (decl, &arg); | |
779 | string_delete (&arg); | |
780 | need_comma = 1; | |
781 | } | |
782 | } | |
783 | else | |
784 | { | |
785 | if (need_comma & print_arg_types) | |
786 | string_append (decl, ", "); | |
787 | if (!do_arg (type, &arg, arg_mode)) | |
788 | return 0; | |
789 | if (print_arg_types) | |
790 | string_appends (decl, &arg); | |
791 | string_delete (&arg); | |
792 | need_comma = 1; | |
793 | } | |
794 | } | |
795 | ||
796 | if (**type == 'v') | |
797 | *type += 1; | |
798 | else if (**type == 'e') | |
799 | { | |
800 | *type += 1; | |
801 | if (print_arg_types) | |
802 | { | |
803 | if (need_comma) | |
804 | string_append (decl, ","); | |
805 | string_append (decl, "..."); | |
806 | } | |
807 | } | |
808 | ||
809 | if (print_arg_types) | |
810 | string_append (decl, ")"); | |
811 | return 1; | |
812 | } | |
813 | ||
814 | static void | |
815 | munge_function_name (name, arg_mode) | |
816 | string *name; | |
817 | int arg_mode; | |
818 | { | |
819 | if (!string_empty (name) && name->p - name->b >= 3 | |
f88e7af8 | 820 | && name->b[0] == 'o' && name->b[1] == 'p' && name->b[2] == CPLUS_MARKER) |
dd3b648e RP |
821 | { |
822 | int i; | |
823 | /* see if it's an assignment expression */ | |
824 | if (name->p - name->b >= 10 /* op$assign_ */ | |
825 | && memcmp (name->b + 3, "assign_", 7) == 0) | |
826 | { | |
827 | for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++) | |
828 | { | |
829 | int len = name->p - name->b - 10; | |
830 | if (strlen (optable[i].in) == len | |
831 | && memcmp (optable[i].in, name->b + 10, len) == 0) | |
832 | { | |
833 | string_clear (name); | |
834 | string_append (name, "operator"); | |
835 | string_append (name, optable[i].out); | |
836 | string_append (name, "="); | |
837 | return; | |
838 | } | |
839 | } | |
840 | } | |
841 | else | |
842 | { | |
843 | for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++) | |
844 | { | |
845 | int len = name->p - name->b - 3; | |
846 | if (strlen (optable[i].in) == len | |
847 | && memcmp (optable[i].in, name->b + 3, len) == 0) | |
848 | { | |
849 | string_clear (name); | |
850 | string_append (name, "operator"); | |
851 | string_append (name, optable[i].out); | |
852 | return; | |
853 | } | |
854 | } | |
855 | } | |
856 | return; | |
857 | } | |
858 | else if (!string_empty (name) && name->p - name->b >= 5 | |
859 | && memcmp (name->b, "type$", 5) == 0) | |
860 | { | |
861 | /* type conversion operator */ | |
862 | string type; | |
863 | const char *tem = name->b + 5; | |
864 | if (do_type (&tem, &type, arg_mode)) | |
865 | { | |
866 | string_clear (name); | |
867 | string_append (name, "operator "); | |
868 | string_appends (name, &type); | |
869 | string_delete (&type); | |
870 | return; | |
871 | } | |
872 | } | |
873 | } | |
874 | ||
875 | /* a mini string-handling package */ | |
876 | ||
877 | static void | |
878 | string_need (s, n) | |
879 | string *s; | |
880 | int n; | |
881 | { | |
882 | if (s->b == NULL) | |
883 | { | |
884 | if (n < 32) | |
885 | n = 32; | |
886 | s->p = s->b = (char *) xmalloc (n); | |
887 | s->e = s->b + n; | |
888 | } | |
889 | else if (s->e - s->p < n) | |
890 | { | |
891 | int tem = s->p - s->b; | |
892 | n += tem; | |
893 | n *= 2; | |
894 | s->b = (char *) xrealloc (s->b, n); | |
895 | s->p = s->b + tem; | |
896 | s->e = s->b + n; | |
897 | } | |
898 | } | |
899 | ||
900 | static void | |
901 | string_delete (s) | |
902 | string *s; | |
903 | { | |
904 | if (s->b != NULL) | |
905 | { | |
906 | free (s->b); | |
907 | s->b = s->e = s->p = NULL; | |
908 | } | |
909 | } | |
910 | ||
911 | static void | |
912 | string_init (s) | |
913 | string *s; | |
914 | { | |
915 | s->b = s->p = s->e = NULL; | |
916 | } | |
917 | ||
918 | static void | |
919 | string_clear (s) | |
920 | string *s; | |
921 | { | |
922 | s->p = s->b; | |
923 | } | |
924 | ||
925 | static int | |
926 | string_empty (s) | |
927 | string *s; | |
928 | { | |
929 | return s->b == s->p; | |
930 | } | |
931 | ||
932 | static void | |
933 | string_append (p, s) | |
934 | string *p; | |
935 | const char *s; | |
936 | { | |
937 | int n; | |
938 | if (s == NULL || *s == '\0') | |
939 | return; | |
940 | n = strlen (s); | |
941 | string_need (p, n); | |
942 | memcpy (p->p, s, n); | |
943 | p->p += n; | |
944 | } | |
945 | ||
946 | static void | |
947 | string_appends (p, s) | |
948 | string *p, *s; | |
949 | { | |
950 | int n; | |
951 | if (s->b == s->p) | |
952 | return; | |
953 | n = s->p - s->b; | |
954 | string_need (p, n); | |
955 | memcpy (p->p, s->b, n); | |
956 | p->p += n; | |
957 | } | |
958 | ||
959 | static void | |
960 | string_appendn (p, s, n) | |
961 | string *p; | |
962 | const char *s; | |
963 | int n; | |
964 | { | |
965 | if (n == 0) | |
966 | return; | |
967 | string_need (p, n); | |
968 | memcpy (p->p, s, n); | |
969 | p->p += n; | |
970 | } | |
971 | ||
972 | static void | |
973 | string_prepend (p, s) | |
974 | string *p; | |
975 | const char *s; | |
976 | { | |
977 | if (s == NULL || *s == '\0') | |
978 | return; | |
979 | string_prependn (p, s, strlen (s)); | |
980 | } | |
981 | ||
982 | #if 0 | |
983 | static void | |
984 | string_prepends (p, s) | |
985 | string *p, *s; | |
986 | { | |
987 | if (s->b == s->p) | |
988 | return; | |
989 | string_prependn (p, s->b, s->p - s->b); | |
990 | } | |
991 | #endif | |
992 | ||
993 | static void | |
994 | string_prependn (p, s, n) | |
995 | string *p; | |
996 | const char *s; | |
997 | int n; | |
998 | { | |
999 | char *q; | |
1000 | ||
1001 | if (n == 0) | |
1002 | return; | |
1003 | string_need (p, n); | |
1004 | for (q = p->p - 1; q >= p->b; q--) | |
1005 | q[n] = q[0]; | |
1006 | memcpy (p->b, s, n); | |
1007 | p->p += n; | |
1008 | } |