Commit | Line | Data |
db81d362 |
1 | /* |
2 | Copyright 2012 Lukas Mai. |
3 | |
4 | This program is free software; you can redistribute it and/or modify it |
5 | under the terms of either: the GNU General Public License as published |
6 | by the Free Software Foundation; or the Artistic License. |
7 | |
8 | See http://dev.perl.org/licenses/ for more information. |
9 | */ |
10 | |
11 | #ifdef __GNUC__ |
12 | #if (__GNUC__ == 4 && __GNUC_MINOR__ >= 6) || __GNUC__ >= 5 |
13 | #define PRAGMA_GCC_(X) _Pragma(#X) |
14 | #define PRAGMA_GCC(X) PRAGMA_GCC_(GCC X) |
15 | #endif |
16 | #endif |
17 | |
18 | #ifndef PRAGMA_GCC |
19 | #define PRAGMA_GCC(X) |
20 | #endif |
21 | |
22 | #ifdef DEVEL |
23 | #define WARNINGS_RESET PRAGMA_GCC(diagnostic pop) |
24 | #define WARNINGS_ENABLEW(X) PRAGMA_GCC(diagnostic warning #X) |
25 | #define WARNINGS_ENABLE \ |
26 | WARNINGS_ENABLEW(-Wall) \ |
27 | WARNINGS_ENABLEW(-Wextra) \ |
28 | WARNINGS_ENABLEW(-Wundef) \ |
c3e72f35 |
29 | /* WARNINGS_ENABLEW(-Wshadow) :-( */ \ |
db81d362 |
30 | WARNINGS_ENABLEW(-Wbad-function-cast) \ |
31 | WARNINGS_ENABLEW(-Wcast-align) \ |
32 | WARNINGS_ENABLEW(-Wwrite-strings) \ |
33 | /* WARNINGS_ENABLEW(-Wnested-externs) wtf? */ \ |
34 | WARNINGS_ENABLEW(-Wstrict-prototypes) \ |
35 | WARNINGS_ENABLEW(-Wmissing-prototypes) \ |
36 | WARNINGS_ENABLEW(-Winline) \ |
37 | WARNINGS_ENABLEW(-Wdisabled-optimization) |
38 | |
39 | #else |
40 | #define WARNINGS_RESET |
1bc47886 |
41 | #define WARNINGS_ENABLE |
db81d362 |
42 | #endif |
43 | |
44 | |
7dd35535 |
45 | #define PERL_NO_GET_CONTEXT |
db81d362 |
46 | #include "EXTERN.h" |
47 | #include "perl.h" |
48 | #include "XSUB.h" |
49 | |
50 | #include <string.h> |
51 | |
63915d26 |
52 | |
db81d362 |
53 | WARNINGS_ENABLE |
54 | |
db81d362 |
55 | |
7dd35535 |
56 | #define HAVE_PERL_VERSION(R, V, S) \ |
57 | (PERL_REVISION > (R) || (PERL_REVISION == (R) && (PERL_VERSION > (V) || (PERL_VERSION == (V) && (PERL_SUBVERSION >= (S)))))) |
58 | |
de013990 |
59 | #if HAVE_PERL_VERSION(5, 16, 0) |
60 | #define IF_HAVE_PERL_5_16(YES, NO) YES |
61 | #else |
62 | #define IF_HAVE_PERL_5_16(YES, NO) NO |
63 | #endif |
64 | |
e158cf8f |
65 | #if 0 |
66 | #if HAVE_PERL_VERSION(5, 17, 6) |
67 | #error "internal error: missing definition of KEY_my (your perl is too new)" |
68 | #elif HAVE_PERL_VERSION(5, 15, 8) |
69 | #define S_KEY_my 134 |
70 | #elif HAVE_PERL_VERSION(5, 15, 6) |
71 | #define S_KEY_my 133 |
72 | #elif HAVE_PERL_VERSION(5, 15, 5) |
73 | #define S_KEY_my 132 |
74 | #elif HAVE_PERL_VERSION(5, 13, 0) |
75 | #define S_KEY_my 131 |
76 | #else |
77 | #error "internal error: missing definition of KEY_my (your perl is too old)" |
78 | #endif |
79 | #endif |
80 | |
63915d26 |
81 | |
82 | #define MY_PKG "Function::Parameters" |
83 | |
84 | #define HINTK_KEYWORDS MY_PKG "/keywords" |
85 | #define HINTK_FLAGS_ MY_PKG "/flags:" |
86 | #define HINTK_SHIFT_ MY_PKG "/shift:" |
87 | #define HINTK_ATTRS_ MY_PKG "/attrs:" |
88 | |
89 | #define DEFSTRUCT(T) typedef struct T T; struct T |
90 | |
0f875412 |
91 | #define UV_BITS (sizeof (UV) * CHAR_BIT) |
63915d26 |
92 | |
93 | enum { |
94 | FLAG_NAME_OK = 0x01, |
95 | FLAG_ANON_OK = 0x02, |
96 | FLAG_DEFAULT_ARGS = 0x04, |
d8e5d540 |
97 | FLAG_CHECK_NARGS = 0x08, |
e158cf8f |
98 | FLAG_INVOCANT = 0x10, |
51a483f8 |
99 | FLAG_NAMED_PARAMS = 0x20, |
100 | FLAG_TYPES_OK = 0x40, |
101 | FLAG_CHECK_TARGS = 0x80 |
63915d26 |
102 | }; |
103 | |
104 | DEFSTRUCT(KWSpec) { |
105 | unsigned flags; |
b72eb6ee |
106 | SV *shift; |
107 | SV *attrs; |
63915d26 |
108 | }; |
db81d362 |
109 | |
110 | static int (*next_keyword_plugin)(pTHX_ char *, STRLEN, OP **); |
111 | |
e4648f19 |
112 | DEFSTRUCT(Resource) { |
113 | Resource *next; |
114 | void *data; |
115 | void (*destroy)(pTHX_ void *); |
116 | }; |
117 | |
118 | typedef Resource *Sentinel[1]; |
119 | |
120 | static void sentinel_clear_void(pTHX_ void *p) { |
121 | Resource **pp = p; |
122 | while (*pp) { |
123 | Resource *cur = *pp; |
a4c13d40 |
124 | if (cur->destroy) { |
125 | cur->destroy(aTHX_ cur->data); |
126 | } |
e4648f19 |
127 | cur->data = (void *)"no"; |
128 | cur->destroy = NULL; |
129 | *pp = cur->next; |
130 | Safefree(cur); |
131 | } |
132 | } |
133 | |
a4c13d40 |
134 | static Resource *sentinel_register(Sentinel sen, void *data, void (*destroy)(pTHX_ void *)) { |
e4648f19 |
135 | Resource *cur; |
136 | |
137 | Newx(cur, 1, Resource); |
138 | cur->data = data; |
139 | cur->destroy = destroy; |
140 | cur->next = *sen; |
141 | *sen = cur; |
a4c13d40 |
142 | |
143 | return cur; |
144 | } |
145 | |
146 | static void sentinel_disarm(Resource *p) { |
147 | p->destroy = NULL; |
e4648f19 |
148 | } |
149 | |
150 | static void my_sv_refcnt_dec_void(pTHX_ void *p) { |
151 | SV *sv = p; |
152 | SvREFCNT_dec(sv); |
153 | } |
154 | |
155 | static SV *sentinel_mortalize(Sentinel sen, SV *sv) { |
156 | sentinel_register(sen, sv, my_sv_refcnt_dec_void); |
157 | return sv; |
158 | } |
159 | |
160 | static void my_safefree(void *p) { |
161 | Safefree(p); |
162 | } |
163 | |
164 | #define SENTINEL_ALLOC(SEN, P, N, T) STMT_START { \ |
165 | Newx(P, N, T); \ |
166 | sentinel_register(SEN, P, my_safefree); \ |
167 | } STMT_END |
168 | |
169 | #define SENTINEL_MDUP(SEN, P, O, N, T) STMT_START { \ |
170 | void *const _sentinel_mdup_tmp_ = (P); \ |
171 | SENTINEL_ALLOC(SEN, P, N, T); \ |
172 | memcpy(P, _sentinel_mdup_tmp_, O * sizeof (T)); \ |
173 | } STMT_END |
174 | |
175 | #define SENTINEL_REALLOC(SEN, P, N, T) STMT_START { \ |
176 | assert((N) > 0); \ |
177 | if (!(P)) { \ |
178 | SENTINEL_ALLOC(SEN, P, N, T); \ |
179 | } else { \ |
180 | Resource **_sentinel_realloc_tmp_ = (SEN); \ |
181 | for (;;) { \ |
182 | assert(*_sentinel_realloc_tmp_ != NULL); \ |
183 | if ((*_sentinel_realloc_tmp_)->data == (P)) { \ |
184 | Renew((*_sentinel_realloc_tmp_)->data, N, T); \ |
185 | (P) = (*_sentinel_realloc_tmp_)->data; \ |
186 | break; \ |
187 | } \ |
188 | _sentinel_realloc_tmp_ = &(*_sentinel_realloc_tmp_)->next; \ |
189 | } \ |
190 | } \ |
191 | } STMT_END |
192 | |
193 | static int kw_flags(pTHX_ Sentinel sen, const char *kw_ptr, STRLEN kw_len, KWSpec *spec) { |
db81d362 |
194 | HV *hints; |
195 | SV *sv, **psv; |
196 | const char *p, *kw_active; |
197 | STRLEN kw_active_len; |
198 | |
63915d26 |
199 | spec->flags = 0; |
e4648f19 |
200 | spec->shift = sentinel_mortalize(sen, newSVpvs("")); |
201 | spec->attrs = sentinel_mortalize(sen, newSVpvs("")); |
db81d362 |
202 | |
203 | if (!(hints = GvHV(PL_hintgv))) { |
204 | return FALSE; |
205 | } |
206 | if (!(psv = hv_fetchs(hints, HINTK_KEYWORDS, 0))) { |
207 | return FALSE; |
208 | } |
209 | sv = *psv; |
210 | kw_active = SvPV(sv, kw_active_len); |
211 | if (kw_active_len <= kw_len) { |
212 | return FALSE; |
213 | } |
e88490f6 |
214 | for ( |
215 | p = kw_active; |
216 | (p = strchr(p, *kw_ptr)) && |
217 | p < kw_active + kw_active_len - kw_len; |
218 | p++ |
219 | ) { |
db81d362 |
220 | if ( |
221 | (p == kw_active || p[-1] == ' ') && |
222 | p[kw_len] == ' ' && |
223 | memcmp(kw_ptr, p, kw_len) == 0 |
224 | ) { |
b72eb6ee |
225 | |
d970c3e7 |
226 | #define FETCH_HINTK_INTO(NAME, PTR, LEN, X) STMT_START { \ |
b72eb6ee |
227 | const char *fk_ptr_; \ |
228 | STRLEN fk_len_; \ |
229 | SV *fk_sv_; \ |
e4648f19 |
230 | fk_sv_ = sentinel_mortalize(sen, newSVpvs(HINTK_ ## NAME)); \ |
b72eb6ee |
231 | sv_catpvn(fk_sv_, PTR, LEN); \ |
232 | fk_ptr_ = SvPV(fk_sv_, fk_len_); \ |
233 | if (!((X) = hv_fetch(hints, fk_ptr_, fk_len_, 0))) { \ |
234 | croak("%s: internal error: $^H{'%.*s'} not set", MY_PKG, (int)fk_len_, fk_ptr_); \ |
235 | } \ |
d970c3e7 |
236 | } STMT_END |
b72eb6ee |
237 | |
63915d26 |
238 | FETCH_HINTK_INTO(FLAGS_, kw_ptr, kw_len, psv); |
239 | spec->flags = SvIV(*psv); |
db81d362 |
240 | |
b72eb6ee |
241 | FETCH_HINTK_INTO(SHIFT_, kw_ptr, kw_len, psv); |
242 | SvSetSV(spec->shift, *psv); |
db81d362 |
243 | |
b72eb6ee |
244 | FETCH_HINTK_INTO(ATTRS_, kw_ptr, kw_len, psv); |
245 | SvSetSV(spec->attrs, *psv); |
246 | |
247 | #undef FETCH_HINTK_INTO |
db81d362 |
248 | return TRUE; |
249 | } |
250 | } |
251 | return FALSE; |
252 | } |
253 | |
254 | |
51a483f8 |
255 | static void free_ptr_op_void(pTHX_ void *vp) { |
c311cef3 |
256 | OP **pp = vp; |
257 | op_free(*pp); |
258 | Safefree(pp); |
259 | } |
260 | |
51a483f8 |
261 | static void free_op_void(pTHX_ void *vp) { |
262 | OP *p = vp; |
263 | op_free(p); |
264 | } |
265 | |
59016bfb |
266 | #define sv_eq_pvs(SV, S) my_sv_eq_pvn(aTHX_ SV, "" S "", sizeof (S) - 1) |
c311cef3 |
267 | |
59016bfb |
268 | static int my_sv_eq_pvn(pTHX_ SV *sv, const char *p, STRLEN n) { |
c311cef3 |
269 | STRLEN sv_len; |
270 | const char *sv_p = SvPV(sv, sv_len); |
59016bfb |
271 | return memcmp(sv_p, p, n) == 0; |
c311cef3 |
272 | } |
273 | |
274 | |
275 | #include "padop_on_crack.c.inc" |
276 | |
277 | |
c311cef3 |
278 | enum { |
279 | MY_ATTR_LVALUE = 0x01, |
280 | MY_ATTR_METHOD = 0x02, |
281 | MY_ATTR_SPECIAL = 0x04 |
282 | }; |
283 | |
31534187 |
284 | static void my_sv_cat_c(pTHX_ SV *sv, U32 c) { |
285 | char ds[UTF8_MAXBYTES + 1], *d; |
286 | d = uvchr_to_utf8(ds, c); |
287 | if (d - ds > 1) { |
288 | sv_utf8_upgrade(sv); |
289 | } |
290 | sv_catpvn(sv, ds, d - ds); |
291 | } |
292 | |
293 | static bool my_is_uni_xidfirst(pTHX_ UV c) { |
294 | U8 tmpbuf[UTF8_MAXBYTES + 1]; |
295 | uvchr_to_utf8(tmpbuf, c); |
296 | return is_utf8_xidfirst(tmpbuf); |
297 | } |
298 | |
299 | static bool my_is_uni_xidcont(pTHX_ UV c) { |
300 | U8 tmpbuf[UTF8_MAXBYTES + 1]; |
301 | uvchr_to_utf8(tmpbuf, c); |
302 | return is_utf8_xidcont(tmpbuf); |
303 | } |
304 | |
e4648f19 |
305 | static SV *my_scan_word(pTHX_ Sentinel sen, bool allow_package) { |
31534187 |
306 | bool at_start, at_substart; |
307 | I32 c; |
e4648f19 |
308 | SV *sv = sentinel_mortalize(sen, newSVpvs("")); |
31534187 |
309 | if (lex_bufutf8()) { |
310 | SvUTF8_on(sv); |
311 | } |
312 | |
313 | at_start = at_substart = TRUE; |
314 | c = lex_peek_unichar(0); |
315 | |
316 | while (c != -1) { |
317 | if (at_substart ? my_is_uni_xidfirst(aTHX_ c) : my_is_uni_xidcont(aTHX_ c)) { |
318 | lex_read_unichar(0); |
319 | my_sv_cat_c(aTHX_ sv, c); |
320 | at_substart = FALSE; |
321 | c = lex_peek_unichar(0); |
322 | } else if (allow_package && !at_substart && c == '\'') { |
323 | lex_read_unichar(0); |
324 | c = lex_peek_unichar(0); |
325 | if (!my_is_uni_xidfirst(aTHX_ c)) { |
326 | lex_stuff_pvs("'", 0); |
327 | break; |
328 | } |
329 | sv_catpvs(sv, "'"); |
330 | at_substart = TRUE; |
331 | } else if (allow_package && (at_start || !at_substart) && c == ':') { |
332 | lex_read_unichar(0); |
333 | if (lex_peek_unichar(0) != ':') { |
334 | lex_stuff_pvs(":", 0); |
335 | break; |
336 | } |
337 | lex_read_unichar(0); |
338 | c = lex_peek_unichar(0); |
339 | if (!my_is_uni_xidfirst(aTHX_ c)) { |
340 | lex_stuff_pvs("::", 0); |
341 | break; |
342 | } |
343 | sv_catpvs(sv, "::"); |
344 | at_substart = TRUE; |
345 | } else { |
346 | break; |
347 | } |
348 | at_start = FALSE; |
349 | } |
350 | |
351 | return SvCUR(sv) ? sv : NULL; |
352 | } |
353 | |
e4648f19 |
354 | static SV *my_scan_parens_tail(pTHX_ Sentinel sen, bool keep_backslash) { |
31534187 |
355 | I32 c, nesting; |
356 | SV *sv; |
357 | line_t start; |
358 | |
359 | start = CopLINE(PL_curcop); |
360 | |
e4648f19 |
361 | sv = sentinel_mortalize(sen, newSVpvs("")); |
31534187 |
362 | if (lex_bufutf8()) { |
363 | SvUTF8_on(sv); |
364 | } |
365 | |
366 | nesting = 0; |
367 | for (;;) { |
368 | c = lex_read_unichar(0); |
369 | if (c == EOF) { |
370 | CopLINE_set(PL_curcop, start); |
371 | return NULL; |
372 | } |
373 | |
374 | if (c == '\\') { |
375 | c = lex_read_unichar(0); |
376 | if (c == EOF) { |
377 | CopLINE_set(PL_curcop, start); |
378 | return NULL; |
379 | } |
380 | if (keep_backslash || (c != '(' && c != ')')) { |
381 | sv_catpvs(sv, "\\"); |
382 | } |
383 | } else if (c == '(') { |
384 | nesting++; |
385 | } else if (c == ')') { |
386 | if (!nesting) { |
387 | break; |
388 | } |
389 | nesting--; |
390 | } |
391 | |
392 | my_sv_cat_c(aTHX_ sv, c); |
393 | } |
394 | |
395 | return sv; |
396 | } |
397 | |
e4648f19 |
398 | static void my_check_prototype(pTHX_ Sentinel sen, const SV *declarator, SV *proto) { |
31534187 |
399 | char *start, *r, *w, *end; |
400 | STRLEN len; |
401 | |
402 | /* strip spaces */ |
403 | start = SvPV(proto, len); |
404 | end = start + len; |
405 | |
406 | for (w = r = start; r < end; r++) { |
407 | if (!isSPACE(*r)) { |
408 | *w++ = *r; |
409 | } |
410 | } |
411 | *w = '\0'; |
412 | SvCUR_set(proto, w - start); |
413 | end = w; |
414 | len = end - start; |
415 | |
416 | if (!ckWARN(WARN_ILLEGALPROTO)) { |
417 | return; |
418 | } |
419 | |
420 | /* check for bad characters */ |
421 | if (strspn(start, "$@%*;[]&\\_+") != len) { |
e4648f19 |
422 | SV *dsv = sentinel_mortalize(sen, newSVpvs("")); |
31534187 |
423 | warner( |
424 | packWARN(WARN_ILLEGALPROTO), |
425 | "Illegal character in prototype for %"SVf" : %s", |
426 | SVfARG(declarator), |
427 | SvUTF8(proto) |
428 | ? sv_uni_display( |
429 | dsv, |
430 | proto, |
431 | len, |
432 | UNI_DISPLAY_ISPRINT |
433 | ) |
434 | : pv_pretty(dsv, start, len, 60, NULL, NULL, |
435 | PERL_PV_ESCAPE_NONASCII |
436 | ) |
437 | ); |
438 | return; |
439 | } |
440 | |
441 | for (r = start; r < end; r++) { |
442 | switch (*r) { |
443 | default: |
444 | warner( |
445 | packWARN(WARN_ILLEGALPROTO), |
446 | "Illegal character in prototype for %"SVf" : %s", |
447 | SVfARG(declarator), r |
448 | ); |
449 | return; |
450 | |
451 | case '_': |
452 | if (r[1] && !strchr(";@%", *r)) { |
453 | warner( |
454 | packWARN(WARN_ILLEGALPROTO), |
455 | "Illegal character after '_' in prototype for %"SVf" : %s", |
456 | SVfARG(declarator), r |
457 | ); |
458 | return; |
459 | } |
460 | break; |
461 | |
462 | case '@': |
463 | case '%': |
464 | if (r[1]) { |
465 | warner( |
466 | packWARN(WARN_ILLEGALPROTO), |
467 | "prototype after '%c' for %"SVf": %s", |
468 | *r, SVfARG(declarator), r + 1 |
469 | ); |
470 | return; |
471 | } |
472 | break; |
473 | |
474 | case '\\': |
475 | r++; |
476 | if (strchr("$@%&*", *r)) { |
477 | break; |
478 | } |
479 | if (*r == '[') { |
480 | r++; |
481 | for (; r < end && *r != ']'; r++) { |
482 | if (!strchr("$@%&*", *r)) { |
483 | break; |
484 | } |
485 | } |
486 | if (*r == ']' && r[-1] != '[') { |
487 | break; |
488 | } |
489 | } |
490 | warner( |
491 | packWARN(WARN_ILLEGALPROTO), |
492 | "Illegal character after '\\' in prototype for %"SVf" : %s", |
493 | SVfARG(declarator), r |
494 | ); |
495 | return; |
496 | |
497 | case '$': |
498 | case '*': |
499 | case '&': |
500 | case ';': |
501 | case '+': |
502 | break; |
503 | } |
504 | } |
505 | } |
506 | |
51a483f8 |
507 | static SV *parse_type(pTHX_ Sentinel, const SV *); |
508 | |
509 | static SV *parse_type_paramd(pTHX_ Sentinel sen, const SV *declarator) { |
510 | I32 c; |
511 | SV *t; |
512 | |
513 | t = my_scan_word(aTHX_ sen, TRUE); |
514 | lex_read_space(0); |
515 | |
516 | c = lex_peek_unichar(0); |
517 | if (c == '[') { |
518 | SV *u; |
519 | |
520 | lex_read_unichar(0); |
521 | lex_read_space(0); |
522 | my_sv_cat_c(aTHX_ t, c); |
523 | |
524 | u = parse_type(aTHX_ sen, declarator); |
525 | sv_catsv(t, u); |
526 | |
527 | c = lex_peek_unichar(0); |
528 | if (c != ']') { |
529 | croak("In %"SVf": missing ']' after '%"SVf"'", SVfARG(declarator), SVfARG(t)); |
530 | } |
531 | lex_read_unichar(0); |
532 | lex_read_space(0); |
533 | |
534 | my_sv_cat_c(aTHX_ t, c); |
535 | } |
536 | |
537 | return t; |
538 | } |
539 | |
540 | static SV *parse_type(pTHX_ Sentinel sen, const SV *declarator) { |
541 | I32 c; |
542 | SV *t; |
543 | |
544 | t = parse_type_paramd(aTHX_ sen, declarator); |
545 | |
546 | c = lex_peek_unichar(0); |
547 | while (c == '|') { |
548 | SV *u; |
549 | |
550 | lex_read_unichar(0); |
551 | lex_read_space(0); |
552 | |
553 | my_sv_cat_c(aTHX_ t, c); |
554 | u = parse_type_paramd(aTHX_ sen, declarator); |
555 | sv_catsv(t, u); |
556 | |
557 | c = lex_peek_unichar(0); |
558 | } |
559 | |
560 | return t; |
561 | } |
562 | |
563 | static SV *reify_type(pTHX_ Sentinel sen, const SV *declarator, SV *name) { |
564 | SV *t; |
565 | int n; |
566 | dSP; |
567 | |
568 | ENTER; |
569 | SAVETMPS; |
570 | |
571 | PUSHMARK(SP); |
572 | EXTEND(SP, 1); |
573 | PUSHs(name); |
574 | PUTBACK; |
575 | |
576 | n = call_pv("Moose::Util::TypeConstraints::find_or_parse_type_constraint", G_SCALAR); |
577 | SPAGAIN; |
578 | |
579 | assert(n == 1); |
580 | t = sentinel_mortalize(sen, SvREFCNT_inc(POPs)); |
581 | |
582 | PUTBACK; |
583 | FREETMPS; |
584 | LEAVE; |
585 | |
586 | if (!SvTRUE(t)) { |
587 | croak("In %"SVf": undefined type '%"SVf"'", SVfARG(declarator), SVfARG(name)); |
588 | } |
589 | |
590 | return t; |
591 | } |
592 | |
e158cf8f |
593 | |
594 | DEFSTRUCT(Param) { |
595 | SV *name; |
596 | PADOFFSET padoff; |
51a483f8 |
597 | SV *type; |
e158cf8f |
598 | }; |
599 | |
600 | DEFSTRUCT(ParamInit) { |
601 | Param param; |
602 | OP *init; |
603 | }; |
604 | |
605 | #define VEC(B) B ## _Vec |
606 | |
607 | #define DEFVECTOR(B) DEFSTRUCT(VEC(B)) { \ |
608 | B (*data); \ |
609 | size_t used, size; \ |
610 | } |
611 | |
612 | DEFVECTOR(Param); |
613 | DEFVECTOR(ParamInit); |
614 | |
615 | #define DEFVECTOR_INIT(N, B) static void N(VEC(B) *p) { \ |
616 | p->used = 0; \ |
617 | p->size = 23; \ |
618 | Newx(p->data, p->size, B); \ |
619 | } static void N(VEC(B) *) |
620 | |
621 | DEFSTRUCT(ParamSpec) { |
622 | Param invocant; |
623 | VEC(Param) positional_required; |
624 | VEC(ParamInit) positional_optional; |
625 | VEC(Param) named_required; |
626 | VEC(ParamInit) named_optional; |
627 | Param slurpy; |
fc634bba |
628 | PADOFFSET rest_hash; |
e158cf8f |
629 | }; |
630 | |
631 | DEFVECTOR_INIT(pv_init, Param); |
632 | DEFVECTOR_INIT(piv_init, ParamInit); |
633 | |
634 | static void p_init(Param *p) { |
635 | p->name = NULL; |
636 | p->padoff = NOT_IN_PAD; |
51a483f8 |
637 | p->type = NULL; |
e158cf8f |
638 | } |
639 | |
640 | static void ps_init(ParamSpec *ps) { |
641 | p_init(&ps->invocant); |
642 | pv_init(&ps->positional_required); |
643 | piv_init(&ps->positional_optional); |
644 | pv_init(&ps->named_required); |
645 | piv_init(&ps->named_optional); |
646 | p_init(&ps->slurpy); |
fc634bba |
647 | ps->rest_hash = NOT_IN_PAD; |
e158cf8f |
648 | } |
649 | |
650 | #define DEFVECTOR_EXTEND(N, B) static B (*N(VEC(B) *p)) { \ |
651 | assert(p->used <= p->size); \ |
652 | if (p->used == p->size) { \ |
653 | const size_t n = p->size / 2 * 3 + 1; \ |
654 | Renew(p->data, n, B); \ |
655 | p->size = n; \ |
656 | } \ |
657 | return &p->data[p->used]; \ |
658 | } static B (*N(VEC(B) *)) |
659 | |
660 | DEFVECTOR_EXTEND(pv_extend, Param); |
661 | DEFVECTOR_EXTEND(piv_extend, ParamInit); |
662 | |
663 | #define DEFVECTOR_CLEAR(N, B, F) static void N(pTHX_ VEC(B) *p) { \ |
664 | while (p->used) { \ |
665 | p->used--; \ |
666 | F(aTHX_ &p->data[p->used]); \ |
667 | } \ |
668 | Safefree(p->data); \ |
669 | p->data = NULL; \ |
670 | p->size = 0; \ |
671 | } static void N(pTHX_ VEC(B) *) |
672 | |
673 | static void p_clear(pTHX_ Param *p) { |
674 | p->name = NULL; |
675 | p->padoff = NOT_IN_PAD; |
51a483f8 |
676 | p->type = NULL; |
e158cf8f |
677 | } |
678 | |
679 | static void pi_clear(pTHX_ ParamInit *pi) { |
680 | p_clear(aTHX_ &pi->param); |
681 | if (pi->init) { |
682 | op_free(pi->init); |
683 | pi->init = NULL; |
684 | } |
685 | } |
686 | |
687 | DEFVECTOR_CLEAR(pv_clear, Param, p_clear); |
688 | DEFVECTOR_CLEAR(piv_clear, ParamInit, pi_clear); |
689 | |
690 | static void ps_clear(pTHX_ ParamSpec *ps) { |
691 | p_clear(aTHX_ &ps->invocant); |
692 | |
693 | pv_clear(aTHX_ &ps->positional_required); |
694 | piv_clear(aTHX_ &ps->positional_optional); |
695 | |
696 | pv_clear(aTHX_ &ps->named_required); |
697 | piv_clear(aTHX_ &ps->named_optional); |
698 | |
699 | p_clear(aTHX_ &ps->slurpy); |
700 | } |
701 | |
702 | static int ps_contains(pTHX_ const ParamSpec *ps, SV *sv) { |
703 | size_t i, lim; |
704 | |
705 | if (ps->invocant.name && sv_eq(sv, ps->invocant.name)) { |
706 | return 1; |
707 | } |
708 | |
709 | for (i = 0, lim = ps->positional_required.used; i < lim; i++) { |
710 | if (sv_eq(sv, ps->positional_required.data[i].name)) { |
711 | return 1; |
712 | } |
713 | } |
714 | |
715 | for (i = 0, lim = ps->positional_optional.used; i < lim; i++) { |
716 | if (sv_eq(sv, ps->positional_optional.data[i].param.name)) { |
717 | return 1; |
718 | } |
719 | } |
720 | |
721 | for (i = 0, lim = ps->named_required.used; i < lim; i++) { |
722 | if (sv_eq(sv, ps->named_required.data[i].name)) { |
723 | return 1; |
724 | } |
725 | } |
726 | |
727 | for (i = 0, lim = ps->named_optional.used; i < lim; i++) { |
728 | if (sv_eq(sv, ps->named_optional.data[i].param.name)) { |
729 | return 1; |
730 | } |
731 | } |
732 | |
733 | return 0; |
734 | } |
735 | |
736 | static void ps_free_void(pTHX_ void *p) { |
737 | ps_clear(aTHX_ p); |
738 | Safefree(p); |
739 | } |
740 | |
741 | static int args_min(pTHX_ const ParamSpec *ps, const KWSpec *ks) { |
742 | int n = 0; |
743 | if (!ps) { |
744 | return SvTRUE(ks->shift) ? 1 : 0; |
745 | } |
746 | if (ps->invocant.name) { |
747 | n++; |
748 | } |
749 | n += ps->positional_required.used; |
750 | n += ps->named_required.used * 2; |
751 | return n; |
752 | } |
753 | |
754 | static int args_max(const ParamSpec *ps) { |
755 | int n = 0; |
756 | if (!ps) { |
757 | return -1; |
758 | } |
759 | if (ps->invocant.name) { |
760 | n++; |
761 | } |
762 | n += ps->positional_required.used; |
763 | n += ps->positional_optional.used; |
764 | if (ps->named_required.used || ps->named_optional.used || ps->slurpy.name) { |
765 | n = -1; |
766 | } |
767 | return n; |
768 | } |
769 | |
770 | static size_t count_positional_params(const ParamSpec *ps) { |
771 | return ps->positional_required.used + ps->positional_optional.used; |
772 | } |
773 | |
774 | static size_t count_named_params(const ParamSpec *ps) { |
775 | return ps->named_required.used + ps->named_optional.used; |
776 | } |
777 | |
51a483f8 |
778 | static void my_require(pTHX_ const char *file) { |
779 | require_pv(file); |
780 | if (SvTRUE(ERRSV)) { |
781 | croak_sv(ERRSV); |
782 | } |
783 | } |
784 | |
785 | static SV *my_eval(pTHX_ Sentinel sen, I32 floor, OP *op) { |
786 | SV *sv; |
787 | CV *cv; |
788 | dSP; |
789 | |
790 | cv = newATTRSUB(floor, NULL, NULL, NULL, op); |
791 | |
792 | ENTER; |
793 | SAVETMPS; |
794 | |
795 | PUSHMARK(SP); |
796 | call_sv((SV *)cv, G_SCALAR | G_NOARGS); |
797 | SPAGAIN; |
798 | sv = sentinel_mortalize(sen, SvREFCNT_inc(POPs)); |
799 | |
800 | PUTBACK; |
801 | FREETMPS; |
802 | LEAVE; |
803 | |
804 | return sv; |
805 | } |
806 | |
e158cf8f |
807 | enum { |
808 | PARAM_INVOCANT = 0x01, |
809 | PARAM_NAMED = 0x02 |
810 | }; |
811 | |
812 | /* *pinit must be NULL on entry. |
813 | * caller must free *pinit on error. |
814 | */ |
815 | static PADOFFSET parse_param( |
816 | pTHX_ |
e4648f19 |
817 | Sentinel sen, |
e158cf8f |
818 | const SV *declarator, const KWSpec *spec, ParamSpec *param_spec, |
51a483f8 |
819 | int *pflags, SV **pname, OP **pinit, SV **ptype |
e158cf8f |
820 | ) { |
821 | I32 c; |
822 | char sigil; |
a4c13d40 |
823 | SV *name; |
e158cf8f |
824 | |
825 | assert(!*pinit); |
826 | *pflags = 0; |
51a483f8 |
827 | *ptype = NULL; |
e158cf8f |
828 | |
829 | c = lex_peek_unichar(0); |
830 | |
51a483f8 |
831 | if (spec->flags & FLAG_TYPES_OK) { |
832 | if (c == '(') { |
833 | I32 floor; |
834 | OP *expr; |
a4c13d40 |
835 | Resource *expr_sentinel; |
51a483f8 |
836 | |
837 | lex_read_unichar(0); |
838 | |
a4c13d40 |
839 | floor = start_subparse(FALSE, 0); |
840 | SAVEFREESV(PL_compcv); |
841 | CvSPECIAL_on(PL_compcv); |
51a483f8 |
842 | |
843 | if (!(expr = parse_fullexpr(PARSE_OPTIONAL))) { |
844 | croak("In %"SVf": invalid type expression", SVfARG(declarator)); |
845 | } |
a4c13d40 |
846 | expr_sentinel = sentinel_register(sen, expr, free_op_void); |
51a483f8 |
847 | |
848 | lex_read_space(0); |
849 | c = lex_peek_unichar(0); |
850 | if (c != ')') { |
851 | croak("In %"SVf": missing ')' after type expression", SVfARG(declarator)); |
852 | } |
853 | lex_read_unichar(0); |
854 | lex_read_space(0); |
855 | |
a4c13d40 |
856 | SvREFCNT_inc_simple_void(PL_compcv); |
857 | sentinel_disarm(expr_sentinel); |
51a483f8 |
858 | *ptype = my_eval(aTHX_ sen, floor, expr); |
a4c13d40 |
859 | *ptype = reify_type(aTHX_ sen, declarator, *ptype); |
51a483f8 |
860 | if (!sv_isobject(*ptype)) { |
861 | croak("In %"SVf": (%"SVf") doesn't look like a type object", SVfARG(declarator), SVfARG(*ptype)); |
862 | } |
863 | |
864 | c = lex_peek_unichar(0); |
865 | } else if (my_is_uni_xidfirst(aTHX_ c)) { |
a4c13d40 |
866 | *ptype = parse_type(aTHX_ sen, declarator); |
51a483f8 |
867 | my_require(aTHX_ "Moose/Util/TypeConstraints.pm"); |
a4c13d40 |
868 | *ptype = reify_type(aTHX_ sen, declarator, *ptype); |
51a483f8 |
869 | |
870 | c = lex_peek_unichar(0); |
871 | } |
872 | } |
873 | |
e158cf8f |
874 | if (c == ':') { |
875 | lex_read_unichar(0); |
876 | lex_read_space(0); |
877 | |
878 | *pflags |= PARAM_NAMED; |
879 | |
880 | c = lex_peek_unichar(0); |
881 | } |
882 | |
883 | if (c == -1) { |
884 | croak("In %"SVf": unterminated parameter list", SVfARG(declarator)); |
885 | } |
51a483f8 |
886 | |
e158cf8f |
887 | if (!(c == '$' || c == '@' || c == '%')) { |
888 | croak("In %"SVf": unexpected '%c' in parameter list (expecting a sigil)", SVfARG(declarator), (int)c); |
889 | } |
890 | |
891 | sigil = c; |
892 | |
893 | lex_read_unichar(0); |
894 | lex_read_space(0); |
895 | |
e4648f19 |
896 | if (!(name = my_scan_word(aTHX_ sen, FALSE))) { |
e158cf8f |
897 | croak("In %"SVf": missing identifier after '%c'", SVfARG(declarator), sigil); |
898 | } |
899 | sv_insert(name, 0, 0, &sigil, 1); |
900 | *pname = name; |
901 | |
902 | lex_read_space(0); |
903 | c = lex_peek_unichar(0); |
904 | |
905 | if (c == '=') { |
906 | lex_read_unichar(0); |
907 | lex_read_space(0); |
908 | |
909 | |
910 | if (!param_spec->invocant.name && SvTRUE(spec->shift)) { |
911 | param_spec->invocant.name = spec->shift; |
912 | param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL); |
913 | } |
914 | |
915 | *pinit = parse_termexpr(0); |
916 | |
917 | lex_read_space(0); |
918 | c = lex_peek_unichar(0); |
919 | } |
920 | |
921 | if (c == ':') { |
922 | *pflags |= PARAM_INVOCANT; |
923 | lex_read_unichar(0); |
924 | lex_read_space(0); |
925 | } else if (c == ',') { |
926 | lex_read_unichar(0); |
927 | lex_read_space(0); |
928 | } else if (c != ')') { |
929 | if (c == -1) { |
930 | croak("In %"SVf": unterminated parameter list", SVfARG(declarator)); |
931 | } |
932 | croak("In %"SVf": unexpected '%c' in parameter list (expecting ',')", SVfARG(declarator), (int)c); |
933 | } |
934 | |
935 | return pad_add_name_sv(*pname, IF_HAVE_PERL_5_16(padadd_NO_DUP_CHECK, 0), NULL, NULL); |
936 | } |
937 | |
938 | static OP *my_var_g(pTHX_ I32 type, I32 flags, PADOFFSET padoff) { |
939 | OP *var = newOP(type, flags); |
940 | var->op_targ = padoff; |
941 | return var; |
942 | } |
943 | |
944 | static OP *my_var(pTHX_ I32 flags, PADOFFSET padoff) { |
945 | return my_var_g(aTHX_ OP_PADSV, flags, padoff); |
946 | } |
947 | |
fc634bba |
948 | static OP *mkhvelem(pTHX_ PADOFFSET h, OP *k) { |
949 | OP *hv = my_var_g(aTHX_ OP_PADHV, OPf_REF, h); |
950 | return newBINOP(OP_HELEM, 0, hv, k); |
951 | } |
952 | |
953 | static OP *mkconstsv(pTHX_ SV *sv) { |
954 | return newSVOP(OP_CONST, 0, sv); |
955 | } |
956 | |
957 | static OP *mkconstiv(pTHX_ IV i) { |
958 | return mkconstsv(aTHX_ newSViv(i)); |
959 | } |
960 | |
961 | static OP *mkconstpv(pTHX_ const char *p, size_t n) { |
962 | return mkconstsv(aTHX_ newSVpv(p, n)); |
963 | } |
964 | |
965 | #define mkconstpvs(S) mkconstpv(aTHX_ "" S "", sizeof S - 1) |
966 | |
51a483f8 |
967 | static OP *mktypecheck(pTHX_ const SV *declarator, int nr, SV *name, PADOFFSET padoff, SV *type) { |
968 | /* $type->check($value) or Carp::croak "...: " . $type->get_message($value) */ |
969 | OP *chk, *cond, *err, *msg, *xcroak; |
970 | |
971 | err = mkconstsv(aTHX_ newSVpvf("In %"SVf": parameter %d (%"SVf"): ", SVfARG(declarator), nr, SVfARG(name))); |
972 | { |
973 | OP *args = NULL; |
974 | |
975 | args = op_append_elem(OP_LIST, args, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(type))); |
976 | args = op_append_elem( |
977 | OP_LIST, args, |
978 | padoff == NOT_IN_PAD |
979 | ? S_newDEFSVOP(aTHX) |
980 | : my_var(aTHX_ 0, padoff) |
981 | ); |
982 | args = op_append_elem(OP_LIST, args, newUNOP(OP_METHOD, 0, mkconstpvs("get_message"))); |
983 | |
984 | msg = args; |
985 | msg->op_type = OP_ENTERSUB; |
986 | msg->op_ppaddr = PL_ppaddr[OP_ENTERSUB]; |
987 | msg->op_flags |= OPf_STACKED; |
988 | } |
989 | |
990 | msg = newBINOP(OP_CONCAT, 0, err, msg); |
991 | |
992 | xcroak = newCVREF( |
993 | OPf_WANT_SCALAR, |
994 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
995 | ); |
996 | xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak)); |
997 | |
998 | { |
999 | OP *args = NULL; |
1000 | |
1001 | args = op_append_elem(OP_LIST, args, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(type))); |
1002 | args = op_append_elem( |
1003 | OP_LIST, args, |
1004 | padoff == NOT_IN_PAD |
1005 | ? S_newDEFSVOP(aTHX) |
1006 | : my_var(aTHX_ 0, padoff) |
1007 | ); |
1008 | args = op_append_elem(OP_LIST, args, newUNOP(OP_METHOD, 0, mkconstpvs("check"))); |
1009 | |
1010 | chk = args; |
1011 | chk->op_type = OP_ENTERSUB; |
1012 | chk->op_ppaddr = PL_ppaddr[OP_ENTERSUB]; |
1013 | chk->op_flags |= OPf_STACKED; |
1014 | } |
1015 | |
1016 | chk = newLOGOP(OP_OR, 0, chk, xcroak); |
1017 | return chk; |
1018 | } |
1019 | |
1020 | static OP *mktypecheckp(pTHX_ const SV *declarator, int nr, const Param *param) { |
1021 | return mktypecheck(aTHX_ declarator, nr, param->name, param->padoff, param->type); |
1022 | } |
1023 | |
53c979f0 |
1024 | static void register_info(pTHX_ UV key, SV *declarator, const KWSpec *kws, const ParamSpec *ps) { |
1025 | dSP; |
1026 | |
1027 | ENTER; |
1028 | SAVETMPS; |
1029 | |
1030 | PUSHMARK(SP); |
51a483f8 |
1031 | EXTEND(SP, 10); |
53c979f0 |
1032 | |
1033 | /* 0 */ { |
1034 | mPUSHu(key); |
1035 | } |
1036 | /* 1 */ { |
1037 | size_t n; |
1038 | char *p = SvPV(declarator, n); |
1039 | char *q = memchr(p, ' ', n); |
1040 | mPUSHp(p, q ? q - p : n); |
1041 | } |
1042 | if (!ps) { |
1043 | if (SvTRUE(kws->shift)) { |
1044 | PUSHs(kws->shift); |
1045 | } else { |
1046 | PUSHmortal; |
1047 | } |
51a483f8 |
1048 | PUSHmortal; |
53c979f0 |
1049 | mPUSHs(newRV_noinc((SV *)newAV())); |
1050 | mPUSHs(newRV_noinc((SV *)newAV())); |
1051 | mPUSHs(newRV_noinc((SV *)newAV())); |
1052 | mPUSHs(newRV_noinc((SV *)newAV())); |
1053 | mPUSHp("@_", 2); |
51a483f8 |
1054 | PUSHmortal; |
53c979f0 |
1055 | } else { |
51a483f8 |
1056 | /* 2, 3 */ { |
53c979f0 |
1057 | if (ps->invocant.name) { |
1058 | PUSHs(ps->invocant.name); |
51a483f8 |
1059 | if (ps->invocant.type) { |
1060 | PUSHs(ps->invocant.type); |
1061 | } else { |
1062 | PUSHmortal; |
1063 | } |
53c979f0 |
1064 | } else { |
1065 | PUSHmortal; |
51a483f8 |
1066 | PUSHmortal; |
53c979f0 |
1067 | } |
1068 | } |
51a483f8 |
1069 | /* 4 */ { |
53c979f0 |
1070 | size_t i, lim; |
1071 | AV *av; |
1072 | |
1073 | lim = ps->positional_required.used; |
1074 | |
1075 | av = newAV(); |
1076 | if (lim) { |
51a483f8 |
1077 | av_extend(av, (lim - 1) * 2); |
53c979f0 |
1078 | for (i = 0; i < lim; i++) { |
51a483f8 |
1079 | Param *cur = &ps->positional_required.data[i]; |
1080 | av_push(av, SvREFCNT_inc_simple_NN(cur->name)); |
1081 | av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef); |
53c979f0 |
1082 | } |
1083 | } |
1084 | |
1085 | mPUSHs(newRV_noinc((SV *)av)); |
1086 | } |
51a483f8 |
1087 | /* 5 */ { |
53c979f0 |
1088 | size_t i, lim; |
1089 | AV *av; |
1090 | |
1091 | lim = ps->positional_optional.used; |
1092 | |
1093 | av = newAV(); |
1094 | if (lim) { |
51a483f8 |
1095 | av_extend(av, (lim - 1) * 2); |
53c979f0 |
1096 | for (i = 0; i < lim; i++) { |
51a483f8 |
1097 | Param *cur = &ps->positional_optional.data[i].param; |
1098 | av_push(av, SvREFCNT_inc_simple_NN(cur->name)); |
1099 | av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef); |
53c979f0 |
1100 | } |
1101 | } |
1102 | |
1103 | mPUSHs(newRV_noinc((SV *)av)); |
1104 | } |
51a483f8 |
1105 | /* 6 */ { |
53c979f0 |
1106 | size_t i, lim; |
1107 | AV *av; |
1108 | |
1109 | lim = ps->named_required.used; |
1110 | |
1111 | av = newAV(); |
1112 | if (lim) { |
51a483f8 |
1113 | av_extend(av, (lim - 1) * 2); |
53c979f0 |
1114 | for (i = 0; i < lim; i++) { |
51a483f8 |
1115 | Param *cur = &ps->named_required.data[i]; |
1116 | av_push(av, SvREFCNT_inc_simple_NN(cur->name)); |
1117 | av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef); |
53c979f0 |
1118 | } |
1119 | } |
1120 | |
1121 | mPUSHs(newRV_noinc((SV *)av)); |
1122 | } |
51a483f8 |
1123 | /* 7 */ { |
53c979f0 |
1124 | size_t i, lim; |
1125 | AV *av; |
1126 | |
1127 | lim = ps->named_optional.used; |
1128 | |
1129 | av = newAV(); |
1130 | if (lim) { |
51a483f8 |
1131 | av_extend(av, (lim - 1) * 2); |
53c979f0 |
1132 | for (i = 0; i < lim; i++) { |
51a483f8 |
1133 | Param *cur = &ps->named_optional.data[i].param; |
1134 | av_push(av, SvREFCNT_inc_simple_NN(cur->name)); |
1135 | av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef); |
53c979f0 |
1136 | } |
1137 | } |
1138 | |
1139 | mPUSHs(newRV_noinc((SV *)av)); |
1140 | } |
51a483f8 |
1141 | /* 8, 9 */ { |
53c979f0 |
1142 | if (ps->slurpy.name) { |
1143 | PUSHs(ps->slurpy.name); |
51a483f8 |
1144 | if (ps->slurpy.type) { |
1145 | PUSHs(ps->slurpy.type); |
1146 | } else { |
1147 | PUSHmortal; |
1148 | } |
53c979f0 |
1149 | } else { |
1150 | PUSHmortal; |
51a483f8 |
1151 | PUSHmortal; |
53c979f0 |
1152 | } |
1153 | } |
1154 | } |
1155 | PUTBACK; |
1156 | |
1157 | call_pv(MY_PKG "::_register_info", G_VOID); |
1158 | |
1159 | FREETMPS; |
1160 | LEAVE; |
1161 | } |
1162 | |
e4648f19 |
1163 | static int parse_fun(pTHX_ Sentinel sen, OP **pop, const char *keyword_ptr, STRLEN keyword_len, const KWSpec *spec) { |
e158cf8f |
1164 | ParamSpec *param_spec; |
c311cef3 |
1165 | SV *declarator; |
1166 | I32 floor_ix; |
63915d26 |
1167 | int save_ix; |
c311cef3 |
1168 | SV *saw_name; |
1e0f1595 |
1169 | OP **prelude_sentinel; |
c311cef3 |
1170 | SV *proto; |
1171 | OP **attrs_sentinel, *body; |
1172 | unsigned builtin_attrs; |
db81d362 |
1173 | I32 c; |
1174 | |
e4648f19 |
1175 | declarator = sentinel_mortalize(sen, newSVpvn(keyword_ptr, keyword_len)); |
db81d362 |
1176 | |
db81d362 |
1177 | lex_read_space(0); |
1178 | |
c311cef3 |
1179 | builtin_attrs = 0; |
1180 | |
db81d362 |
1181 | /* function name */ |
c311cef3 |
1182 | saw_name = NULL; |
e4648f19 |
1183 | if ((spec->flags & FLAG_NAME_OK) && (saw_name = my_scan_word(aTHX_ sen, TRUE))) { |
c311cef3 |
1184 | |
1185 | if (PL_parser->expect != XSTATE) { |
1186 | /* bail out early so we don't predeclare $saw_name */ |
1187 | croak("In %"SVf": I was expecting a function body, not \"%"SVf"\"", SVfARG(declarator), SVfARG(saw_name)); |
1188 | } |
1189 | |
db81d362 |
1190 | sv_catpvs(declarator, " "); |
c311cef3 |
1191 | sv_catsv(declarator, saw_name); |
1192 | |
1193 | if ( |
1194 | sv_eq_pvs(saw_name, "BEGIN") || |
1195 | sv_eq_pvs(saw_name, "END") || |
1196 | sv_eq_pvs(saw_name, "INIT") || |
1197 | sv_eq_pvs(saw_name, "CHECK") || |
1198 | sv_eq_pvs(saw_name, "UNITCHECK") |
1199 | ) { |
1200 | builtin_attrs |= MY_ATTR_SPECIAL; |
1201 | } |
1202 | |
db81d362 |
1203 | lex_read_space(0); |
63915d26 |
1204 | } else if (!(spec->flags & FLAG_ANON_OK)) { |
31534187 |
1205 | croak("I was expecting a function name, not \"%.*s\"", (int)(PL_parser->bufend - PL_parser->bufptr), PL_parser->bufptr); |
db81d362 |
1206 | } else { |
1207 | sv_catpvs(declarator, " (anon)"); |
1208 | } |
1209 | |
63915d26 |
1210 | /* we're a subroutine declaration */ |
c311cef3 |
1211 | floor_ix = start_subparse(FALSE, saw_name ? 0 : CVf_ANON); |
1212 | SAVEFREESV(PL_compcv); |
1213 | |
63915d26 |
1214 | /* create outer block: '{' */ |
1215 | save_ix = S_block_start(aTHX_ TRUE); |
1216 | |
1e0f1595 |
1217 | /* initialize synthetic optree */ |
1218 | Newx(prelude_sentinel, 1, OP *); |
1219 | *prelude_sentinel = NULL; |
51a483f8 |
1220 | sentinel_register(sen, prelude_sentinel, free_ptr_op_void); |
1e0f1595 |
1221 | |
db81d362 |
1222 | /* parameters */ |
e158cf8f |
1223 | param_spec = NULL; |
63915d26 |
1224 | |
db81d362 |
1225 | c = lex_peek_unichar(0); |
1226 | if (c == '(') { |
e158cf8f |
1227 | OP **init_sentinel; |
1228 | |
1229 | Newx(init_sentinel, 1, OP *); |
1230 | *init_sentinel = NULL; |
51a483f8 |
1231 | sentinel_register(sen, init_sentinel, free_ptr_op_void); |
e158cf8f |
1232 | |
1233 | Newx(param_spec, 1, ParamSpec); |
1234 | ps_init(param_spec); |
e4648f19 |
1235 | sentinel_register(sen, param_spec, ps_free_void); |
db81d362 |
1236 | |
1237 | lex_read_unichar(0); |
1238 | lex_read_space(0); |
1239 | |
e158cf8f |
1240 | while ((c = lex_peek_unichar(0)) != ')') { |
1241 | int flags; |
51a483f8 |
1242 | SV *name, *type; |
e158cf8f |
1243 | char sigil; |
1244 | PADOFFSET padoff; |
c311cef3 |
1245 | |
51a483f8 |
1246 | padoff = parse_param(aTHX_ sen, declarator, spec, param_spec, &flags, &name, init_sentinel, &type); |
c311cef3 |
1247 | |
e158cf8f |
1248 | S_intro_my(aTHX); |
63915d26 |
1249 | |
e158cf8f |
1250 | sigil = SvPV_nolen(name)[0]; |
db81d362 |
1251 | |
e158cf8f |
1252 | /* internal consistency */ |
1253 | if (flags & PARAM_NAMED) { |
1254 | if (flags & PARAM_INVOCANT) { |
1255 | croak("In %"SVf": invocant %"SVf" can't be a named parameter", SVfARG(declarator), SVfARG(name)); |
db81d362 |
1256 | } |
e158cf8f |
1257 | if (sigil != '$') { |
1258 | croak("In %"SVf": named parameter %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash"); |
db81d362 |
1259 | } |
e158cf8f |
1260 | } else if (flags & PARAM_INVOCANT) { |
1261 | if (*init_sentinel) { |
1262 | croak("In %"SVf": invocant %"SVf" can't have a default value", SVfARG(declarator), SVfARG(name)); |
db81d362 |
1263 | } |
e158cf8f |
1264 | if (sigil != '$') { |
1265 | croak("In %"SVf": invocant %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash"); |
1266 | } |
1267 | } else if (sigil != '$' && *init_sentinel) { |
1268 | croak("In %"SVf": %s %"SVf" can't have a default value", SVfARG(declarator), sigil == '@' ? "array" : "hash", SVfARG(name)); |
1269 | } |
db81d362 |
1270 | |
e158cf8f |
1271 | /* external constraints */ |
1272 | if (param_spec->slurpy.name) { |
1273 | croak("In %"SVf": I was expecting \")\" after \"%"SVf"\", not \"%"SVf"\"", SVfARG(declarator), SVfARG(param_spec->slurpy.name), SVfARG(name)); |
1274 | } |
1275 | if (sigil != '$') { |
1276 | assert(!*init_sentinel); |
1277 | param_spec->slurpy.name = name; |
1278 | param_spec->slurpy.padoff = padoff; |
51a483f8 |
1279 | param_spec->slurpy.type = type; |
e158cf8f |
1280 | continue; |
1281 | } |
d8e5d540 |
1282 | |
e158cf8f |
1283 | if (!(flags & PARAM_NAMED) && count_named_params(param_spec)) { |
1284 | croak("In %"SVf": positional parameter %"SVf" can't appear after named parameter %"SVf"", SVfARG(declarator), SVfARG(name), SVfARG((param_spec->named_required.used ? param_spec->named_required.data[0] : param_spec->named_optional.data[0].param).name)); |
1285 | } |
d8e5d540 |
1286 | |
e158cf8f |
1287 | if (flags & PARAM_INVOCANT) { |
1288 | if (param_spec->invocant.name) { |
1289 | croak("In %"SVf": invalid double invocants %"SVf", %"SVf"", SVfARG(declarator), SVfARG(param_spec->invocant.name), SVfARG(name)); |
1290 | } |
1291 | if (count_positional_params(param_spec) || count_named_params(param_spec)) { |
1292 | croak("In %"SVf": invocant %"SVf" must be first in parameter list", SVfARG(declarator), SVfARG(name)); |
63915d26 |
1293 | } |
e158cf8f |
1294 | if (!(spec->flags & FLAG_INVOCANT)) { |
1295 | croak("In %"SVf": invocant %"SVf" not allowed here", SVfARG(declarator), SVfARG(name)); |
1296 | } |
1297 | param_spec->invocant.name = name; |
1298 | param_spec->invocant.padoff = padoff; |
51a483f8 |
1299 | param_spec->invocant.type = type; |
e158cf8f |
1300 | continue; |
1301 | } |
63915d26 |
1302 | |
e158cf8f |
1303 | if (*init_sentinel && !(spec->flags & FLAG_DEFAULT_ARGS)) { |
1304 | croak("In %"SVf": default argument for %"SVf" not allowed here", SVfARG(declarator), SVfARG(name)); |
1305 | } |
1e0f1595 |
1306 | |
e158cf8f |
1307 | if (ps_contains(aTHX_ param_spec, name)) { |
1308 | croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(name)); |
1309 | } |
1e0f1595 |
1310 | |
e158cf8f |
1311 | if (flags & PARAM_NAMED) { |
1312 | if (!(spec->flags & FLAG_NAMED_PARAMS)) { |
1313 | croak("In %"SVf": named parameter :%"SVf" not allowed here", SVfARG(declarator), SVfARG(name)); |
1e0f1595 |
1314 | } |
1315 | |
e158cf8f |
1316 | if (*init_sentinel) { |
1317 | ParamInit *pi = piv_extend(¶m_spec->named_optional); |
1318 | pi->param.name = name; |
1319 | pi->param.padoff = padoff; |
51a483f8 |
1320 | pi->param.type = type; |
e158cf8f |
1321 | pi->init = *init_sentinel; |
1322 | *init_sentinel = NULL; |
1323 | param_spec->named_optional.used++; |
1324 | } else { |
1325 | if (param_spec->positional_optional.used) { |
1326 | croak("In %"SVf": can't combine optional positional (%"SVf") and required named (%"SVf") parameters", SVfARG(declarator), SVfARG(param_spec->positional_optional.data[0].param.name), SVfARG(name)); |
1327 | } |
d8e5d540 |
1328 | |
e158cf8f |
1329 | Param *p = pv_extend(¶m_spec->named_required); |
1330 | p->name = name; |
1331 | p->padoff = padoff; |
51a483f8 |
1332 | p->type = type; |
e158cf8f |
1333 | param_spec->named_required.used++; |
1334 | } |
1335 | } else { |
1336 | if (*init_sentinel || param_spec->positional_optional.used) { |
1337 | ParamInit *pi = piv_extend(¶m_spec->positional_optional); |
1338 | pi->param.name = name; |
1339 | pi->param.padoff = padoff; |
51a483f8 |
1340 | pi->param.type = type; |
e158cf8f |
1341 | pi->init = *init_sentinel; |
1342 | *init_sentinel = NULL; |
1343 | param_spec->positional_optional.used++; |
1344 | } else { |
1345 | Param *p = pv_extend(¶m_spec->positional_required); |
1346 | p->name = name; |
1347 | p->padoff = padoff; |
51a483f8 |
1348 | p->type = type; |
e158cf8f |
1349 | param_spec->positional_required.used++; |
db81d362 |
1350 | } |
1351 | } |
1352 | |
e158cf8f |
1353 | } |
1354 | lex_read_unichar(0); |
1355 | lex_read_space(0); |
1356 | *init_sentinel = NULL; |
db81d362 |
1357 | |
e158cf8f |
1358 | if (!param_spec->invocant.name && SvTRUE(spec->shift)) { |
1359 | if (ps_contains(aTHX_ param_spec, spec->shift)) { |
1360 | croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(spec->shift)); |
db81d362 |
1361 | } |
e158cf8f |
1362 | |
1363 | param_spec->invocant.name = spec->shift; |
1364 | param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL); |
db81d362 |
1365 | } |
1366 | } |
1367 | |
1368 | /* prototype */ |
c311cef3 |
1369 | proto = NULL; |
db81d362 |
1370 | c = lex_peek_unichar(0); |
1371 | if (c == ':') { |
1372 | lex_read_unichar(0); |
1373 | lex_read_space(0); |
1374 | |
1375 | c = lex_peek_unichar(0); |
1376 | if (c != '(') { |
c311cef3 |
1377 | lex_stuff_pvs(":", 0); |
1378 | c = ':'; |
db81d362 |
1379 | } else { |
31534187 |
1380 | lex_read_unichar(0); |
e4648f19 |
1381 | if (!(proto = my_scan_parens_tail(aTHX_ sen, FALSE))) { |
f34187b8 |
1382 | croak("In %"SVf": prototype not terminated", SVfARG(declarator)); |
db81d362 |
1383 | } |
e4648f19 |
1384 | my_check_prototype(aTHX_ sen, declarator, proto); |
db81d362 |
1385 | lex_read_space(0); |
c311cef3 |
1386 | c = lex_peek_unichar(0); |
514bcaa6 |
1387 | if (!(c == ':' || c == '{')) { |
1388 | lex_stuff_pvs(":", 0); |
1389 | c = ':'; |
1390 | } |
db81d362 |
1391 | } |
1392 | } |
1393 | |
db81d362 |
1394 | /* attributes */ |
c311cef3 |
1395 | Newx(attrs_sentinel, 1, OP *); |
1396 | *attrs_sentinel = NULL; |
51a483f8 |
1397 | sentinel_register(sen, attrs_sentinel, free_ptr_op_void); |
c311cef3 |
1398 | |
63915d26 |
1399 | if (c == ':' || c == '{') /* '}' - hi, vim */ { |
c311cef3 |
1400 | |
1401 | /* kludge default attributes in */ |
1402 | if (SvTRUE(spec->attrs) && SvPV_nolen(spec->attrs)[0] == ':') { |
1403 | lex_stuff_sv(spec->attrs, 0); |
1404 | c = ':'; |
1405 | } |
b72eb6ee |
1406 | |
db81d362 |
1407 | if (c == ':') { |
db81d362 |
1408 | lex_read_unichar(0); |
1409 | lex_read_space(0); |
db81d362 |
1410 | c = lex_peek_unichar(0); |
c311cef3 |
1411 | |
1412 | for (;;) { |
1413 | SV *attr; |
1414 | |
e4648f19 |
1415 | if (!(attr = my_scan_word(aTHX_ sen, FALSE))) { |
c311cef3 |
1416 | break; |
db81d362 |
1417 | } |
c311cef3 |
1418 | |
db81d362 |
1419 | lex_read_space(0); |
1420 | c = lex_peek_unichar(0); |
c311cef3 |
1421 | |
1422 | if (c != '(') { |
1423 | if (sv_eq_pvs(attr, "lvalue")) { |
1424 | builtin_attrs |= MY_ATTR_LVALUE; |
1425 | attr = NULL; |
1426 | } else if (sv_eq_pvs(attr, "method")) { |
1427 | builtin_attrs |= MY_ATTR_METHOD; |
1428 | attr = NULL; |
1429 | } |
1430 | } else { |
31534187 |
1431 | SV *sv; |
1432 | lex_read_unichar(0); |
e4648f19 |
1433 | if (!(sv = my_scan_parens_tail(aTHX_ sen, TRUE))) { |
c311cef3 |
1434 | croak("In %"SVf": unterminated attribute parameter in attribute list", SVfARG(declarator)); |
1435 | } |
31534187 |
1436 | sv_catpvs(attr, "("); |
c311cef3 |
1437 | sv_catsv(attr, sv); |
31534187 |
1438 | sv_catpvs(attr, ")"); |
c311cef3 |
1439 | |
1440 | lex_read_space(0); |
1441 | c = lex_peek_unichar(0); |
1442 | } |
1443 | |
1444 | if (attr) { |
fc634bba |
1445 | *attrs_sentinel = op_append_elem(OP_LIST, *attrs_sentinel, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(attr))); |
c311cef3 |
1446 | } |
1447 | |
1448 | if (c == ':') { |
1449 | lex_read_unichar(0); |
1450 | lex_read_space(0); |
1451 | c = lex_peek_unichar(0); |
1452 | } |
db81d362 |
1453 | } |
1454 | } |
1455 | } |
1456 | |
1457 | /* body */ |
63915d26 |
1458 | if (c != '{') /* '}' - hi, vim */ { |
85bc3fbd |
1459 | croak("In %"SVf": I was expecting a function body, not \"%c\"", SVfARG(declarator), (int)c); |
db81d362 |
1460 | } |
c311cef3 |
1461 | |
63915d26 |
1462 | /* surprise predeclaration! */ |
1463 | if (saw_name) { |
1464 | /* 'sub NAME (PROTO);' to make name/proto known to perl before it |
1465 | starts parsing the body */ |
1466 | const I32 sub_ix = start_subparse(FALSE, 0); |
1467 | SAVEFREESV(PL_compcv); |
1468 | |
1469 | SvREFCNT_inc_simple_void(PL_compcv); |
1470 | |
1471 | newATTRSUB( |
1472 | sub_ix, |
fc634bba |
1473 | mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(saw_name)), |
1474 | proto ? mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(proto)) : NULL, |
63915d26 |
1475 | NULL, |
1476 | NULL |
1477 | ); |
1478 | } |
1479 | |
c311cef3 |
1480 | if (builtin_attrs & MY_ATTR_LVALUE) { |
1481 | CvLVALUE_on(PL_compcv); |
db81d362 |
1482 | } |
c311cef3 |
1483 | if (builtin_attrs & MY_ATTR_METHOD) { |
1484 | CvMETHOD_on(PL_compcv); |
1485 | } |
1486 | if (builtin_attrs & MY_ATTR_SPECIAL) { |
1487 | CvSPECIAL_on(PL_compcv); |
db81d362 |
1488 | } |
1489 | |
e158cf8f |
1490 | /* check number of arguments */ |
1e0f1595 |
1491 | if (spec->flags & FLAG_CHECK_NARGS) { |
e158cf8f |
1492 | int amin, amax; |
1493 | size_t named; |
abccbe86 |
1494 | |
e158cf8f |
1495 | amin = args_min(aTHX_ param_spec, spec); |
1496 | if (amin > 0) { |
51a483f8 |
1497 | OP *chk, *cond, *err, *xcroak; |
63915d26 |
1498 | |
fc634bba |
1499 | err = mkconstsv(aTHX_ newSVpvf("Not enough arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amin)); |
1500 | err = newBINOP( |
1501 | OP_CONCAT, 0, |
1502 | err, |
1503 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)) |
1504 | ); |
1505 | err = newBINOP( |
1506 | OP_CONCAT, 0, |
1507 | err, |
1508 | mkconstpvs(")") |
1509 | ); |
63915d26 |
1510 | |
51a483f8 |
1511 | xcroak = newCVREF(OPf_WANT_SCALAR, |
1512 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))); |
1e0f1595 |
1513 | err = newUNOP(OP_ENTERSUB, OPf_STACKED, |
51a483f8 |
1514 | op_append_elem(OP_LIST, err, xcroak)); |
63915d26 |
1515 | |
1e0f1595 |
1516 | cond = newBINOP(OP_LT, 0, |
5f50e017 |
1517 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
fc634bba |
1518 | mkconstiv(aTHX_ amin)); |
1e0f1595 |
1519 | chk = newLOGOP(OP_AND, 0, cond, err); |
63915d26 |
1520 | |
1e0f1595 |
1521 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk)); |
1522 | } |
abccbe86 |
1523 | |
e158cf8f |
1524 | amax = args_max(param_spec); |
1525 | if (amax >= 0) { |
51a483f8 |
1526 | OP *chk, *cond, *err, *xcroak; |
63915d26 |
1527 | |
fc634bba |
1528 | err = mkconstsv(aTHX_ newSVpvf("Too many arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amax)); |
1529 | err = newBINOP( |
1530 | OP_CONCAT, 0, |
1531 | err, |
1532 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)) |
1533 | ); |
1534 | err = newBINOP( |
1535 | OP_CONCAT, 0, |
1536 | err, |
1537 | mkconstpvs(")") |
1538 | ); |
63915d26 |
1539 | |
51a483f8 |
1540 | xcroak = newCVREF( |
fc634bba |
1541 | OPf_WANT_SCALAR, |
1542 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
1543 | ); |
1e0f1595 |
1544 | err = newUNOP(OP_ENTERSUB, OPf_STACKED, |
51a483f8 |
1545 | op_append_elem(OP_LIST, err, xcroak)); |
63915d26 |
1546 | |
fc634bba |
1547 | cond = newBINOP( |
1548 | OP_GT, 0, |
1549 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1550 | mkconstiv(aTHX_ amax) |
1551 | ); |
1e0f1595 |
1552 | chk = newLOGOP(OP_AND, 0, cond, err); |
63915d26 |
1553 | |
1e0f1595 |
1554 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk)); |
1555 | } |
e158cf8f |
1556 | |
1557 | if (param_spec && (count_named_params(param_spec) || (param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%'))) { |
51a483f8 |
1558 | OP *chk, *cond, *err, *xcroak; |
e158cf8f |
1559 | const UV fixed = count_positional_params(param_spec) + !!param_spec->invocant.name; |
63915d26 |
1560 | |
fc634bba |
1561 | err = mkconstsv(aTHX_ newSVpvf("Odd number of paired arguments for %"SVf"", SVfARG(declarator))); |
63915d26 |
1562 | |
51a483f8 |
1563 | xcroak = newCVREF( |
fc634bba |
1564 | OPf_WANT_SCALAR, |
1565 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
1566 | ); |
1e0f1595 |
1567 | err = newUNOP(OP_ENTERSUB, OPf_STACKED, |
51a483f8 |
1568 | op_append_elem(OP_LIST, err, xcroak)); |
63915d26 |
1569 | |
1e0f1595 |
1570 | cond = newBINOP(OP_GT, 0, |
5f50e017 |
1571 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
fc634bba |
1572 | mkconstiv(aTHX_ fixed)); |
e158cf8f |
1573 | cond = newLOGOP(OP_AND, 0, |
fc634bba |
1574 | cond, |
1575 | newBINOP(OP_MODULO, 0, |
1576 | fixed |
1577 | ? newBINOP(OP_SUBTRACT, 0, |
1578 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1579 | mkconstiv(aTHX_ fixed)) |
1580 | : newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1581 | mkconstiv(aTHX_ 2))); |
1e0f1595 |
1582 | chk = newLOGOP(OP_AND, 0, cond, err); |
63915d26 |
1583 | |
1e0f1595 |
1584 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk)); |
c311cef3 |
1585 | } |
1e0f1595 |
1586 | } |
c311cef3 |
1587 | |
e158cf8f |
1588 | if (!param_spec) { |
1589 | /* my $invocant = shift; */ |
1590 | if (SvTRUE(spec->shift)) { |
1591 | OP *var; |
abccbe86 |
1592 | |
e158cf8f |
1593 | var = my_var( |
1594 | aTHX_ |
1595 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1596 | pad_add_name_sv(spec->shift, 0, NULL, NULL) |
1597 | ); |
1598 | var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0)); |
c311cef3 |
1599 | |
e158cf8f |
1600 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1601 | } |
1602 | } else { |
1603 | /* my $invocant = shift; */ |
1604 | if (param_spec->invocant.name) { |
1605 | OP *var; |
c311cef3 |
1606 | |
e158cf8f |
1607 | var = my_var( |
1608 | aTHX_ |
1609 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1610 | param_spec->invocant.padoff |
1611 | ); |
1612 | var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0)); |
1e0f1595 |
1613 | |
e158cf8f |
1614 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
51a483f8 |
1615 | |
1616 | if (param_spec->invocant.type && (spec->flags & FLAG_CHECK_TARGS)) { |
1617 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, 0, ¶m_spec->invocant))); |
1618 | } |
c311cef3 |
1619 | } |
1620 | |
e158cf8f |
1621 | /* my (...) = @_; */ |
1622 | { |
1623 | OP *lhs; |
1624 | size_t i, lim; |
63915d26 |
1625 | |
e158cf8f |
1626 | lhs = NULL; |
63915d26 |
1627 | |
e158cf8f |
1628 | for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) { |
1629 | OP *const var = my_var( |
1630 | aTHX_ |
1631 | OPf_WANT_LIST | (OPpLVAL_INTRO << 8), |
1632 | param_spec->positional_required.data[i].padoff |
1633 | ); |
1634 | lhs = op_append_elem(OP_LIST, lhs, var); |
1635 | } |
63915d26 |
1636 | |
e158cf8f |
1637 | for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) { |
1638 | OP *const var = my_var( |
1639 | aTHX_ |
1640 | OPf_WANT_LIST | (OPpLVAL_INTRO << 8), |
1641 | param_spec->positional_optional.data[i].param.padoff |
1642 | ); |
1643 | lhs = op_append_elem(OP_LIST, lhs, var); |
1644 | } |
63915d26 |
1645 | |
fc634bba |
1646 | { |
1647 | PADOFFSET padoff; |
1648 | I32 type; |
1649 | bool slurpy_hash; |
1650 | |
1651 | /* |
1652 | * cases: |
1653 | * 1) no named params |
1654 | * 1.1) slurpy |
1655 | * => put it in |
1656 | * 1.2) no slurpy |
1657 | * => nop |
1658 | * 2) named params |
1659 | * 2.1) no slurpy |
1660 | * => synthetic %{rest} |
1661 | * 2.2) slurpy is a hash |
1662 | * => put it in |
1663 | * 2.3) slurpy is an array |
1664 | * => synthetic %{rest} |
1665 | * remember to declare array later |
1666 | */ |
1667 | |
1668 | slurpy_hash = param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%'; |
1669 | if (!count_named_params(param_spec)) { |
1670 | if (param_spec->slurpy.name) { |
1671 | padoff = param_spec->slurpy.padoff; |
1672 | type = slurpy_hash ? OP_PADHV : OP_PADAV; |
1673 | } else { |
1674 | padoff = NOT_IN_PAD; |
1675 | type = OP_PADSV; |
1676 | } |
1677 | } else if (slurpy_hash) { |
1678 | padoff = param_spec->slurpy.padoff; |
1679 | type = OP_PADHV; |
e158cf8f |
1680 | } else { |
fc634bba |
1681 | padoff = param_spec->rest_hash = pad_add_name_pvs("%{rest}", 0, NULL, NULL); |
1682 | type = OP_PADHV; |
1683 | } |
1684 | |
1685 | if (padoff != NOT_IN_PAD) { |
e158cf8f |
1686 | OP *const var = my_var_g( |
1687 | aTHX_ |
fc634bba |
1688 | type, |
e158cf8f |
1689 | OPf_WANT_LIST | (OPpLVAL_INTRO << 8), |
fc634bba |
1690 | padoff |
e158cf8f |
1691 | ); |
fc634bba |
1692 | |
e158cf8f |
1693 | lhs = op_append_elem(OP_LIST, lhs, var); |
fc634bba |
1694 | |
1695 | if (type == OP_PADHV) { |
1696 | param_spec->rest_hash = padoff; |
1697 | } |
e158cf8f |
1698 | } |
1699 | } |
63915d26 |
1700 | |
e158cf8f |
1701 | if (lhs) { |
1702 | OP *rhs; |
1703 | lhs->op_flags |= OPf_PARENS; |
1704 | rhs = newAVREF(newGVOP(OP_GV, 0, PL_defgv)); |
1705 | |
1706 | *prelude_sentinel = op_append_list( |
1707 | OP_LINESEQ, *prelude_sentinel, |
1708 | newSTATEOP( |
1709 | 0, NULL, |
1710 | newASSIGNOP(OPf_STACKED, lhs, 0, rhs) |
1711 | ) |
1712 | ); |
1713 | } |
1714 | } |
63915d26 |
1715 | |
fc634bba |
1716 | /* default positional arguments */ |
e158cf8f |
1717 | { |
1718 | size_t i, lim, req; |
1719 | OP *nest; |
63915d26 |
1720 | |
e158cf8f |
1721 | nest = NULL; |
63915d26 |
1722 | |
e158cf8f |
1723 | req = param_spec->positional_required.used; |
1724 | for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) { |
1725 | ParamInit *cur = ¶m_spec->positional_optional.data[i]; |
1726 | OP *var, *cond; |
63915d26 |
1727 | |
e158cf8f |
1728 | cond = newBINOP( |
1729 | OP_LT, 0, |
1730 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
fc634bba |
1731 | mkconstiv(aTHX_ req + i + 1) |
e158cf8f |
1732 | ); |
63915d26 |
1733 | |
e158cf8f |
1734 | var = my_var(aTHX_ 0, cur->param.padoff); |
63915d26 |
1735 | |
e158cf8f |
1736 | nest = op_append_list( |
1737 | OP_LINESEQ, nest, |
1738 | newASSIGNOP(OPf_STACKED, var, 0, cur->init) |
1739 | ); |
1740 | cur->init = NULL; |
1741 | nest = newCONDOP( |
1742 | 0, |
1743 | cond, |
1744 | nest, |
1745 | NULL |
1746 | ); |
1747 | } |
1e0f1595 |
1748 | |
e158cf8f |
1749 | *prelude_sentinel = op_append_list( |
1750 | OP_LINESEQ, *prelude_sentinel, |
1751 | nest |
1752 | ); |
c311cef3 |
1753 | } |
1754 | |
e158cf8f |
1755 | /* named parameters */ |
1756 | if (count_named_params(param_spec)) { |
fc634bba |
1757 | size_t i, lim; |
1758 | |
1759 | assert(param_spec->rest_hash != NOT_IN_PAD); |
1760 | |
1761 | for (i = 0, lim = param_spec->named_required.used; i < lim; i++) { |
1762 | Param *cur = ¶m_spec->named_required.data[i]; |
1763 | size_t n; |
1764 | char *p = SvPV(cur->name, n); |
1765 | OP *var, *cond; |
1766 | |
1767 | cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1)); |
1768 | |
1769 | if (spec->flags & FLAG_CHECK_NARGS) { |
51a483f8 |
1770 | OP *xcroak, *msg; |
fc634bba |
1771 | |
1772 | var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1)); |
1773 | var = newUNOP(OP_DELETE, 0, var); |
1774 | |
1775 | msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": missing named parameter: %.*s", SVfARG(declarator), (int)(n - 1), p + 1)); |
51a483f8 |
1776 | xcroak = newCVREF( |
fc634bba |
1777 | OPf_WANT_SCALAR, |
1778 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
1779 | ); |
51a483f8 |
1780 | xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak)); |
fc634bba |
1781 | |
1782 | cond = newUNOP(OP_EXISTS, 0, cond); |
1783 | |
51a483f8 |
1784 | cond = newCONDOP(0, cond, var, xcroak); |
fc634bba |
1785 | } |
1786 | |
1787 | var = my_var( |
1788 | aTHX_ |
1789 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1790 | cur->padoff |
1791 | ); |
1792 | var = newASSIGNOP(OPf_STACKED, var, 0, cond); |
1793 | |
1794 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1795 | } |
1796 | |
1797 | for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) { |
1798 | ParamInit *cur = ¶m_spec->named_optional.data[i]; |
1799 | size_t n; |
1800 | char *p = SvPV(cur->param.name, n); |
1801 | OP *var, *cond; |
1802 | |
1803 | var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1)); |
1804 | var = newUNOP(OP_DELETE, 0, var); |
1805 | |
1806 | cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1)); |
1807 | cond = newUNOP(OP_EXISTS, 0, cond); |
1808 | |
1809 | cond = newCONDOP(0, cond, var, cur->init); |
1810 | cur->init = NULL; |
1811 | |
1812 | var = my_var( |
1813 | aTHX_ |
1814 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1815 | cur->param.padoff |
1816 | ); |
1817 | var = newASSIGNOP(OPf_STACKED, var, 0, cond); |
1818 | |
1819 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1820 | } |
1821 | |
1822 | if (!param_spec->slurpy.name) { |
1823 | if (spec->flags & FLAG_CHECK_NARGS) { |
1824 | /* croak if %{rest} */ |
51a483f8 |
1825 | OP *xcroak, *cond, *keys, *msg; |
fc634bba |
1826 | |
1827 | keys = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash)); |
1828 | keys = newLISTOP(OP_SORT, 0, newOP(OP_PUSHMARK, 0), keys); |
1829 | { |
1830 | OP *first, *mid, *last; |
1831 | |
1832 | last = keys; |
1833 | |
1834 | mid = mkconstpvs(", "); |
1835 | mid->op_sibling = last; |
1836 | |
1837 | first = newOP(OP_PUSHMARK, 0); |
1838 | |
1839 | keys = newLISTOP(OP_JOIN, 0, first, mid); |
1840 | keys->op_targ = pad_alloc(OP_JOIN, SVs_PADTMP); |
1841 | ((LISTOP *)keys)->op_last = last; |
1842 | } |
1843 | |
1844 | msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": no such named parameter: ", SVfARG(declarator))); |
1845 | msg = newBINOP(OP_CONCAT, 0, msg, keys); |
1846 | |
51a483f8 |
1847 | xcroak = newCVREF( |
fc634bba |
1848 | OPf_WANT_SCALAR, |
1849 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
1850 | ); |
51a483f8 |
1851 | xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak)); |
fc634bba |
1852 | |
1853 | cond = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash)); |
51a483f8 |
1854 | xcroak = newCONDOP(0, cond, xcroak, NULL); |
fc634bba |
1855 | |
51a483f8 |
1856 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, xcroak)); |
fc634bba |
1857 | } else { |
1858 | OP *clear; |
1859 | |
1860 | clear = newASSIGNOP( |
1861 | OPf_STACKED, |
1862 | my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash), |
1863 | 0, |
1864 | newNULLLIST() |
1865 | ); |
1866 | |
1867 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, clear)); |
1868 | } |
1869 | } else if (param_spec->slurpy.padoff != param_spec->rest_hash) { |
1870 | OP *var, *clear; |
1871 | |
1872 | assert(SvPV_nolen(param_spec->slurpy.name)[0] == '@'); |
1873 | |
1874 | var = my_var_g( |
1875 | aTHX_ |
1876 | OP_PADAV, |
1877 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1878 | param_spec->slurpy.padoff |
1879 | ); |
1880 | |
1881 | var = newASSIGNOP(OPf_STACKED, var, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash)); |
1882 | |
1883 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1884 | |
1885 | clear = newASSIGNOP( |
1886 | OPf_STACKED, |
1887 | my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash), |
1888 | 0, |
1889 | newNULLLIST() |
1890 | ); |
1891 | |
1892 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, clear)); |
1893 | } |
1894 | } |
51a483f8 |
1895 | |
1896 | if (spec->flags & FLAG_CHECK_TARGS) { |
1897 | size_t i, lim, base; |
1898 | |
1899 | base = 1; |
1900 | for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) { |
1901 | Param *cur = ¶m_spec->positional_required.data[i]; |
1902 | |
1903 | if (cur->type) { |
1904 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur))); |
1905 | } |
1906 | } |
1907 | base += i; |
1908 | |
1909 | for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) { |
1910 | Param *cur = ¶m_spec->positional_optional.data[i].param; |
1911 | |
1912 | if (cur->type) { |
1913 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur))); |
1914 | } |
1915 | } |
1916 | base += i; |
1917 | |
1918 | for (i = 0, lim = param_spec->named_required.used; i < lim; i++) { |
1919 | Param *cur = ¶m_spec->named_required.data[i]; |
1920 | |
1921 | if (cur->type) { |
1922 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur))); |
1923 | } |
1924 | } |
1925 | base += i; |
1926 | |
1927 | for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) { |
1928 | Param *cur = ¶m_spec->named_optional.data[i].param; |
1929 | |
1930 | if (cur->type) { |
1931 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur))); |
1932 | } |
1933 | } |
1934 | base += i; |
1935 | |
1936 | if (param_spec->slurpy.type) { |
1937 | /* $type->valid($_) or croak $type->get_message($_) for @rest / values %rest */ |
1938 | OP *body, *list, *loop; |
1939 | |
1940 | body = mktypecheck(aTHX_ declarator, base, param_spec->slurpy.name, NOT_IN_PAD, param_spec->slurpy.type); |
1941 | |
1942 | if (SvPV_nolen(param_spec->slurpy.name)[0] == '@') { |
1943 | list = my_var_g(aTHX_ OP_PADAV, 0, param_spec->slurpy.padoff); |
1944 | } else { |
1945 | list = my_var_g(aTHX_ OP_PADHV, 0, param_spec->slurpy.padoff); |
1946 | list = newUNOP(OP_VALUES, 0, list); |
1947 | } |
1948 | |
1949 | loop = newFOROP(0, NULL, list, body, NULL); |
1950 | |
1951 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, loop)); |
1952 | } |
1953 | } |
1e0f1595 |
1954 | } |
c311cef3 |
1955 | |
1e0f1595 |
1956 | /* finally let perl parse the actual subroutine body */ |
1957 | body = parse_block(0); |
c311cef3 |
1958 | |
1e0f1595 |
1959 | /* add '();' to make function return nothing by default */ |
1960 | /* (otherwise the invisible parameter initialization can "leak" into |
1961 | the return value: fun ($x) {}->("asdf", 0) == 2) */ |
1962 | if (*prelude_sentinel) { |
1963 | body = newSTATEOP(0, NULL, body); |
db81d362 |
1964 | } |
1965 | |
1e0f1595 |
1966 | body = op_append_list(OP_LINESEQ, *prelude_sentinel, body); |
1967 | *prelude_sentinel = NULL; |
1968 | |
c311cef3 |
1969 | /* it's go time. */ |
1970 | { |
53c979f0 |
1971 | CV *cv; |
c311cef3 |
1972 | OP *const attrs = *attrs_sentinel; |
1973 | *attrs_sentinel = NULL; |
53c979f0 |
1974 | |
c311cef3 |
1975 | SvREFCNT_inc_simple_void(PL_compcv); |
1976 | |
63915d26 |
1977 | /* close outer block: '}' */ |
1978 | S_block_end(aTHX_ save_ix, body); |
1979 | |
53c979f0 |
1980 | cv = newATTRSUB( |
c311cef3 |
1981 | floor_ix, |
53c979f0 |
1982 | saw_name ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(saw_name)) : NULL, |
c311cef3 |
1983 | proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL, |
1984 | attrs, |
1985 | body |
1986 | ); |
53c979f0 |
1987 | |
1988 | register_info(aTHX_ PTR2UV(CvROOT(cv)), declarator, spec, param_spec); |
1989 | |
1990 | if (saw_name) { |
1991 | *pop = newOP(OP_NULL, 0); |
1992 | return KEYWORD_PLUGIN_STMT; |
1993 | } |
1994 | |
1995 | *pop = newUNOP( |
1996 | OP_REFGEN, 0, |
1997 | newSVOP( |
1998 | OP_ANONCODE, 0, |
1999 | (SV *)cv |
2000 | ) |
2001 | ); |
2002 | return KEYWORD_PLUGIN_EXPR; |
db81d362 |
2003 | } |
db81d362 |
2004 | } |
2005 | |
2006 | static int my_keyword_plugin(pTHX_ char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) { |
63915d26 |
2007 | KWSpec spec; |
db81d362 |
2008 | int ret; |
e4648f19 |
2009 | Sentinel sen = { NULL }; |
db81d362 |
2010 | |
e4648f19 |
2011 | ENTER; |
db81d362 |
2012 | SAVETMPS; |
2013 | |
e4648f19 |
2014 | SAVEDESTRUCTOR_X(sentinel_clear_void, sen); |
2015 | |
2016 | if (kw_flags(aTHX_ sen, keyword_ptr, keyword_len, &spec)) { |
2017 | ret = parse_fun(aTHX_ sen, op_ptr, keyword_ptr, keyword_len, &spec); |
db81d362 |
2018 | } else { |
7dd35535 |
2019 | ret = next_keyword_plugin(aTHX_ keyword_ptr, keyword_len, op_ptr); |
db81d362 |
2020 | } |
2021 | |
2022 | FREETMPS; |
e4648f19 |
2023 | LEAVE; |
db81d362 |
2024 | |
2025 | return ret; |
2026 | } |
2027 | |
2028 | WARNINGS_RESET |
2029 | |
53c979f0 |
2030 | MODULE = Function::Parameters PACKAGE = Function::Parameters PREFIX = fp_ |
db81d362 |
2031 | PROTOTYPES: ENABLE |
2032 | |
53c979f0 |
2033 | UV |
2034 | fp__cv_root(sv) |
2035 | SV * sv |
2036 | PREINIT: |
2037 | CV *cv; |
2038 | HV *hv; |
2039 | GV *gv; |
2040 | CODE: |
2041 | cv = sv_2cv(sv, &hv, &gv, 0); |
2042 | RETVAL = PTR2UV(cv ? CvROOT(cv) : NULL); |
2043 | OUTPUT: |
2044 | RETVAL |
2045 | |
db81d362 |
2046 | BOOT: |
2047 | WARNINGS_ENABLE { |
2048 | HV *const stash = gv_stashpvs(MY_PKG, GV_ADD); |
426a4d69 |
2049 | /**/ |
d8e5d540 |
2050 | newCONSTSUB(stash, "FLAG_NAME_OK", newSViv(FLAG_NAME_OK)); |
2051 | newCONSTSUB(stash, "FLAG_ANON_OK", newSViv(FLAG_ANON_OK)); |
63915d26 |
2052 | newCONSTSUB(stash, "FLAG_DEFAULT_ARGS", newSViv(FLAG_DEFAULT_ARGS)); |
d8e5d540 |
2053 | newCONSTSUB(stash, "FLAG_CHECK_NARGS", newSViv(FLAG_CHECK_NARGS)); |
2054 | newCONSTSUB(stash, "FLAG_INVOCANT", newSViv(FLAG_INVOCANT)); |
e158cf8f |
2055 | newCONSTSUB(stash, "FLAG_NAMED_PARAMS", newSViv(FLAG_NAMED_PARAMS)); |
51a483f8 |
2056 | newCONSTSUB(stash, "FLAG_TYPES_OK", newSViv(FLAG_TYPES_OK)); |
2057 | newCONSTSUB(stash, "FLAG_CHECK_TARGS", newSViv(FLAG_CHECK_TARGS)); |
db81d362 |
2058 | newCONSTSUB(stash, "HINTK_KEYWORDS", newSVpvs(HINTK_KEYWORDS)); |
d8e5d540 |
2059 | newCONSTSUB(stash, "HINTK_FLAGS_", newSVpvs(HINTK_FLAGS_)); |
2060 | newCONSTSUB(stash, "HINTK_SHIFT_", newSVpvs(HINTK_SHIFT_)); |
2061 | newCONSTSUB(stash, "HINTK_ATTRS_", newSVpvs(HINTK_ATTRS_)); |
426a4d69 |
2062 | /**/ |
db81d362 |
2063 | next_keyword_plugin = PL_keyword_plugin; |
2064 | PL_keyword_plugin = my_keyword_plugin; |
2065 | } WARNINGS_RESET |