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, |
99 | FLAG_NAMED_PARAMS = 0x20 |
63915d26 |
100 | }; |
101 | |
102 | DEFSTRUCT(KWSpec) { |
103 | unsigned flags; |
b72eb6ee |
104 | SV *shift; |
105 | SV *attrs; |
63915d26 |
106 | }; |
db81d362 |
107 | |
108 | static int (*next_keyword_plugin)(pTHX_ char *, STRLEN, OP **); |
109 | |
e4648f19 |
110 | DEFSTRUCT(Resource) { |
111 | Resource *next; |
112 | void *data; |
113 | void (*destroy)(pTHX_ void *); |
114 | }; |
115 | |
116 | typedef Resource *Sentinel[1]; |
117 | |
118 | static void sentinel_clear_void(pTHX_ void *p) { |
119 | Resource **pp = p; |
120 | while (*pp) { |
121 | Resource *cur = *pp; |
122 | cur->destroy(aTHX_ cur->data); |
123 | cur->data = (void *)"no"; |
124 | cur->destroy = NULL; |
125 | *pp = cur->next; |
126 | Safefree(cur); |
127 | } |
128 | } |
129 | |
130 | static void sentinel_register(Sentinel sen, void *data, void (*destroy)(pTHX_ void *)) { |
131 | Resource *cur; |
132 | |
133 | Newx(cur, 1, Resource); |
134 | cur->data = data; |
135 | cur->destroy = destroy; |
136 | cur->next = *sen; |
137 | *sen = cur; |
138 | } |
139 | |
140 | static void my_sv_refcnt_dec_void(pTHX_ void *p) { |
141 | SV *sv = p; |
142 | SvREFCNT_dec(sv); |
143 | } |
144 | |
145 | static SV *sentinel_mortalize(Sentinel sen, SV *sv) { |
146 | sentinel_register(sen, sv, my_sv_refcnt_dec_void); |
147 | return sv; |
148 | } |
149 | |
150 | static void my_safefree(void *p) { |
151 | Safefree(p); |
152 | } |
153 | |
154 | #define SENTINEL_ALLOC(SEN, P, N, T) STMT_START { \ |
155 | Newx(P, N, T); \ |
156 | sentinel_register(SEN, P, my_safefree); \ |
157 | } STMT_END |
158 | |
159 | #define SENTINEL_MDUP(SEN, P, O, N, T) STMT_START { \ |
160 | void *const _sentinel_mdup_tmp_ = (P); \ |
161 | SENTINEL_ALLOC(SEN, P, N, T); \ |
162 | memcpy(P, _sentinel_mdup_tmp_, O * sizeof (T)); \ |
163 | } STMT_END |
164 | |
165 | #define SENTINEL_REALLOC(SEN, P, N, T) STMT_START { \ |
166 | assert((N) > 0); \ |
167 | if (!(P)) { \ |
168 | SENTINEL_ALLOC(SEN, P, N, T); \ |
169 | } else { \ |
170 | Resource **_sentinel_realloc_tmp_ = (SEN); \ |
171 | for (;;) { \ |
172 | assert(*_sentinel_realloc_tmp_ != NULL); \ |
173 | if ((*_sentinel_realloc_tmp_)->data == (P)) { \ |
174 | Renew((*_sentinel_realloc_tmp_)->data, N, T); \ |
175 | (P) = (*_sentinel_realloc_tmp_)->data; \ |
176 | break; \ |
177 | } \ |
178 | _sentinel_realloc_tmp_ = &(*_sentinel_realloc_tmp_)->next; \ |
179 | } \ |
180 | } \ |
181 | } STMT_END |
182 | |
183 | static int kw_flags(pTHX_ Sentinel sen, const char *kw_ptr, STRLEN kw_len, KWSpec *spec) { |
db81d362 |
184 | HV *hints; |
185 | SV *sv, **psv; |
186 | const char *p, *kw_active; |
187 | STRLEN kw_active_len; |
188 | |
63915d26 |
189 | spec->flags = 0; |
e4648f19 |
190 | spec->shift = sentinel_mortalize(sen, newSVpvs("")); |
191 | spec->attrs = sentinel_mortalize(sen, newSVpvs("")); |
db81d362 |
192 | |
193 | if (!(hints = GvHV(PL_hintgv))) { |
194 | return FALSE; |
195 | } |
196 | if (!(psv = hv_fetchs(hints, HINTK_KEYWORDS, 0))) { |
197 | return FALSE; |
198 | } |
199 | sv = *psv; |
200 | kw_active = SvPV(sv, kw_active_len); |
201 | if (kw_active_len <= kw_len) { |
202 | return FALSE; |
203 | } |
e88490f6 |
204 | for ( |
205 | p = kw_active; |
206 | (p = strchr(p, *kw_ptr)) && |
207 | p < kw_active + kw_active_len - kw_len; |
208 | p++ |
209 | ) { |
db81d362 |
210 | if ( |
211 | (p == kw_active || p[-1] == ' ') && |
212 | p[kw_len] == ' ' && |
213 | memcmp(kw_ptr, p, kw_len) == 0 |
214 | ) { |
b72eb6ee |
215 | |
d970c3e7 |
216 | #define FETCH_HINTK_INTO(NAME, PTR, LEN, X) STMT_START { \ |
b72eb6ee |
217 | const char *fk_ptr_; \ |
218 | STRLEN fk_len_; \ |
219 | SV *fk_sv_; \ |
e4648f19 |
220 | fk_sv_ = sentinel_mortalize(sen, newSVpvs(HINTK_ ## NAME)); \ |
b72eb6ee |
221 | sv_catpvn(fk_sv_, PTR, LEN); \ |
222 | fk_ptr_ = SvPV(fk_sv_, fk_len_); \ |
223 | if (!((X) = hv_fetch(hints, fk_ptr_, fk_len_, 0))) { \ |
224 | croak("%s: internal error: $^H{'%.*s'} not set", MY_PKG, (int)fk_len_, fk_ptr_); \ |
225 | } \ |
d970c3e7 |
226 | } STMT_END |
b72eb6ee |
227 | |
63915d26 |
228 | FETCH_HINTK_INTO(FLAGS_, kw_ptr, kw_len, psv); |
229 | spec->flags = SvIV(*psv); |
db81d362 |
230 | |
b72eb6ee |
231 | FETCH_HINTK_INTO(SHIFT_, kw_ptr, kw_len, psv); |
232 | SvSetSV(spec->shift, *psv); |
db81d362 |
233 | |
b72eb6ee |
234 | FETCH_HINTK_INTO(ATTRS_, kw_ptr, kw_len, psv); |
235 | SvSetSV(spec->attrs, *psv); |
236 | |
237 | #undef FETCH_HINTK_INTO |
db81d362 |
238 | return TRUE; |
239 | } |
240 | } |
241 | return FALSE; |
242 | } |
243 | |
244 | |
311ced6f |
245 | static void free_ptr_op(pTHX_ void *vp) { |
c311cef3 |
246 | OP **pp = vp; |
247 | op_free(*pp); |
248 | Safefree(pp); |
249 | } |
250 | |
59016bfb |
251 | #define sv_eq_pvs(SV, S) my_sv_eq_pvn(aTHX_ SV, "" S "", sizeof (S) - 1) |
c311cef3 |
252 | |
59016bfb |
253 | static int my_sv_eq_pvn(pTHX_ SV *sv, const char *p, STRLEN n) { |
c311cef3 |
254 | STRLEN sv_len; |
255 | const char *sv_p = SvPV(sv, sv_len); |
59016bfb |
256 | return memcmp(sv_p, p, n) == 0; |
c311cef3 |
257 | } |
258 | |
259 | |
260 | #include "padop_on_crack.c.inc" |
261 | |
262 | |
c311cef3 |
263 | enum { |
264 | MY_ATTR_LVALUE = 0x01, |
265 | MY_ATTR_METHOD = 0x02, |
266 | MY_ATTR_SPECIAL = 0x04 |
267 | }; |
268 | |
31534187 |
269 | static void my_sv_cat_c(pTHX_ SV *sv, U32 c) { |
270 | char ds[UTF8_MAXBYTES + 1], *d; |
67fc1ddb |
271 | d = (char *)uvchr_to_utf8((U8 *)ds, c); |
31534187 |
272 | if (d - ds > 1) { |
273 | sv_utf8_upgrade(sv); |
274 | } |
275 | sv_catpvn(sv, ds, d - ds); |
276 | } |
277 | |
278 | static bool my_is_uni_xidfirst(pTHX_ UV c) { |
279 | U8 tmpbuf[UTF8_MAXBYTES + 1]; |
280 | uvchr_to_utf8(tmpbuf, c); |
281 | return is_utf8_xidfirst(tmpbuf); |
282 | } |
283 | |
284 | static bool my_is_uni_xidcont(pTHX_ UV c) { |
285 | U8 tmpbuf[UTF8_MAXBYTES + 1]; |
286 | uvchr_to_utf8(tmpbuf, c); |
287 | return is_utf8_xidcont(tmpbuf); |
288 | } |
289 | |
e4648f19 |
290 | static SV *my_scan_word(pTHX_ Sentinel sen, bool allow_package) { |
31534187 |
291 | bool at_start, at_substart; |
292 | I32 c; |
e4648f19 |
293 | SV *sv = sentinel_mortalize(sen, newSVpvs("")); |
31534187 |
294 | if (lex_bufutf8()) { |
295 | SvUTF8_on(sv); |
296 | } |
297 | |
298 | at_start = at_substart = TRUE; |
299 | c = lex_peek_unichar(0); |
300 | |
301 | while (c != -1) { |
302 | if (at_substart ? my_is_uni_xidfirst(aTHX_ c) : my_is_uni_xidcont(aTHX_ c)) { |
303 | lex_read_unichar(0); |
304 | my_sv_cat_c(aTHX_ sv, c); |
305 | at_substart = FALSE; |
306 | c = lex_peek_unichar(0); |
307 | } else if (allow_package && !at_substart && c == '\'') { |
308 | lex_read_unichar(0); |
309 | c = lex_peek_unichar(0); |
310 | if (!my_is_uni_xidfirst(aTHX_ c)) { |
311 | lex_stuff_pvs("'", 0); |
312 | break; |
313 | } |
314 | sv_catpvs(sv, "'"); |
315 | at_substart = TRUE; |
316 | } else if (allow_package && (at_start || !at_substart) && c == ':') { |
317 | lex_read_unichar(0); |
318 | if (lex_peek_unichar(0) != ':') { |
319 | lex_stuff_pvs(":", 0); |
320 | break; |
321 | } |
322 | lex_read_unichar(0); |
323 | c = lex_peek_unichar(0); |
324 | if (!my_is_uni_xidfirst(aTHX_ c)) { |
325 | lex_stuff_pvs("::", 0); |
326 | break; |
327 | } |
328 | sv_catpvs(sv, "::"); |
329 | at_substart = TRUE; |
330 | } else { |
331 | break; |
332 | } |
333 | at_start = FALSE; |
334 | } |
335 | |
336 | return SvCUR(sv) ? sv : NULL; |
337 | } |
338 | |
e4648f19 |
339 | static SV *my_scan_parens_tail(pTHX_ Sentinel sen, bool keep_backslash) { |
31534187 |
340 | I32 c, nesting; |
341 | SV *sv; |
342 | line_t start; |
343 | |
344 | start = CopLINE(PL_curcop); |
345 | |
e4648f19 |
346 | sv = sentinel_mortalize(sen, newSVpvs("")); |
31534187 |
347 | if (lex_bufutf8()) { |
348 | SvUTF8_on(sv); |
349 | } |
350 | |
351 | nesting = 0; |
352 | for (;;) { |
353 | c = lex_read_unichar(0); |
354 | if (c == EOF) { |
355 | CopLINE_set(PL_curcop, start); |
356 | return NULL; |
357 | } |
358 | |
359 | if (c == '\\') { |
360 | c = lex_read_unichar(0); |
361 | if (c == EOF) { |
362 | CopLINE_set(PL_curcop, start); |
363 | return NULL; |
364 | } |
365 | if (keep_backslash || (c != '(' && c != ')')) { |
366 | sv_catpvs(sv, "\\"); |
367 | } |
368 | } else if (c == '(') { |
369 | nesting++; |
370 | } else if (c == ')') { |
371 | if (!nesting) { |
372 | break; |
373 | } |
374 | nesting--; |
375 | } |
376 | |
377 | my_sv_cat_c(aTHX_ sv, c); |
378 | } |
379 | |
380 | return sv; |
381 | } |
382 | |
e4648f19 |
383 | static void my_check_prototype(pTHX_ Sentinel sen, const SV *declarator, SV *proto) { |
31534187 |
384 | char *start, *r, *w, *end; |
385 | STRLEN len; |
386 | |
387 | /* strip spaces */ |
388 | start = SvPV(proto, len); |
389 | end = start + len; |
390 | |
391 | for (w = r = start; r < end; r++) { |
392 | if (!isSPACE(*r)) { |
393 | *w++ = *r; |
394 | } |
395 | } |
396 | *w = '\0'; |
397 | SvCUR_set(proto, w - start); |
398 | end = w; |
399 | len = end - start; |
400 | |
401 | if (!ckWARN(WARN_ILLEGALPROTO)) { |
402 | return; |
403 | } |
404 | |
405 | /* check for bad characters */ |
406 | if (strspn(start, "$@%*;[]&\\_+") != len) { |
e4648f19 |
407 | SV *dsv = sentinel_mortalize(sen, newSVpvs("")); |
31534187 |
408 | warner( |
409 | packWARN(WARN_ILLEGALPROTO), |
410 | "Illegal character in prototype for %"SVf" : %s", |
411 | SVfARG(declarator), |
412 | SvUTF8(proto) |
413 | ? sv_uni_display( |
414 | dsv, |
415 | proto, |
416 | len, |
417 | UNI_DISPLAY_ISPRINT |
418 | ) |
419 | : pv_pretty(dsv, start, len, 60, NULL, NULL, |
420 | PERL_PV_ESCAPE_NONASCII |
421 | ) |
422 | ); |
423 | return; |
424 | } |
425 | |
426 | for (r = start; r < end; r++) { |
427 | switch (*r) { |
428 | default: |
429 | warner( |
430 | packWARN(WARN_ILLEGALPROTO), |
431 | "Illegal character in prototype for %"SVf" : %s", |
432 | SVfARG(declarator), r |
433 | ); |
434 | return; |
435 | |
436 | case '_': |
437 | if (r[1] && !strchr(";@%", *r)) { |
438 | warner( |
439 | packWARN(WARN_ILLEGALPROTO), |
440 | "Illegal character after '_' in prototype for %"SVf" : %s", |
441 | SVfARG(declarator), r |
442 | ); |
443 | return; |
444 | } |
445 | break; |
446 | |
447 | case '@': |
448 | case '%': |
449 | if (r[1]) { |
450 | warner( |
451 | packWARN(WARN_ILLEGALPROTO), |
452 | "prototype after '%c' for %"SVf": %s", |
453 | *r, SVfARG(declarator), r + 1 |
454 | ); |
455 | return; |
456 | } |
457 | break; |
458 | |
459 | case '\\': |
460 | r++; |
461 | if (strchr("$@%&*", *r)) { |
462 | break; |
463 | } |
464 | if (*r == '[') { |
465 | r++; |
466 | for (; r < end && *r != ']'; r++) { |
467 | if (!strchr("$@%&*", *r)) { |
468 | break; |
469 | } |
470 | } |
471 | if (*r == ']' && r[-1] != '[') { |
472 | break; |
473 | } |
474 | } |
475 | warner( |
476 | packWARN(WARN_ILLEGALPROTO), |
477 | "Illegal character after '\\' in prototype for %"SVf" : %s", |
478 | SVfARG(declarator), r |
479 | ); |
480 | return; |
481 | |
482 | case '$': |
483 | case '*': |
484 | case '&': |
485 | case ';': |
486 | case '+': |
487 | break; |
488 | } |
489 | } |
490 | } |
491 | |
e158cf8f |
492 | |
493 | DEFSTRUCT(Param) { |
494 | SV *name; |
495 | PADOFFSET padoff; |
496 | }; |
497 | |
498 | DEFSTRUCT(ParamInit) { |
499 | Param param; |
500 | OP *init; |
501 | }; |
502 | |
503 | #define VEC(B) B ## _Vec |
504 | |
505 | #define DEFVECTOR(B) DEFSTRUCT(VEC(B)) { \ |
506 | B (*data); \ |
507 | size_t used, size; \ |
508 | } |
509 | |
510 | DEFVECTOR(Param); |
511 | DEFVECTOR(ParamInit); |
512 | |
513 | #define DEFVECTOR_INIT(N, B) static void N(VEC(B) *p) { \ |
514 | p->used = 0; \ |
515 | p->size = 23; \ |
516 | Newx(p->data, p->size, B); \ |
517 | } static void N(VEC(B) *) |
518 | |
519 | DEFSTRUCT(ParamSpec) { |
520 | Param invocant; |
521 | VEC(Param) positional_required; |
522 | VEC(ParamInit) positional_optional; |
523 | VEC(Param) named_required; |
524 | VEC(ParamInit) named_optional; |
525 | Param slurpy; |
fc634bba |
526 | PADOFFSET rest_hash; |
e158cf8f |
527 | }; |
528 | |
529 | DEFVECTOR_INIT(pv_init, Param); |
530 | DEFVECTOR_INIT(piv_init, ParamInit); |
531 | |
532 | static void p_init(Param *p) { |
533 | p->name = NULL; |
534 | p->padoff = NOT_IN_PAD; |
535 | } |
536 | |
537 | static void ps_init(ParamSpec *ps) { |
538 | p_init(&ps->invocant); |
539 | pv_init(&ps->positional_required); |
540 | piv_init(&ps->positional_optional); |
541 | pv_init(&ps->named_required); |
542 | piv_init(&ps->named_optional); |
543 | p_init(&ps->slurpy); |
fc634bba |
544 | ps->rest_hash = NOT_IN_PAD; |
e158cf8f |
545 | } |
546 | |
547 | #define DEFVECTOR_EXTEND(N, B) static B (*N(VEC(B) *p)) { \ |
548 | assert(p->used <= p->size); \ |
549 | if (p->used == p->size) { \ |
550 | const size_t n = p->size / 2 * 3 + 1; \ |
551 | Renew(p->data, n, B); \ |
552 | p->size = n; \ |
553 | } \ |
554 | return &p->data[p->used]; \ |
555 | } static B (*N(VEC(B) *)) |
556 | |
557 | DEFVECTOR_EXTEND(pv_extend, Param); |
558 | DEFVECTOR_EXTEND(piv_extend, ParamInit); |
559 | |
560 | #define DEFVECTOR_CLEAR(N, B, F) static void N(pTHX_ VEC(B) *p) { \ |
561 | while (p->used) { \ |
562 | p->used--; \ |
563 | F(aTHX_ &p->data[p->used]); \ |
564 | } \ |
565 | Safefree(p->data); \ |
566 | p->data = NULL; \ |
567 | p->size = 0; \ |
568 | } static void N(pTHX_ VEC(B) *) |
569 | |
570 | static void p_clear(pTHX_ Param *p) { |
571 | p->name = NULL; |
572 | p->padoff = NOT_IN_PAD; |
573 | } |
574 | |
575 | static void pi_clear(pTHX_ ParamInit *pi) { |
576 | p_clear(aTHX_ &pi->param); |
577 | if (pi->init) { |
578 | op_free(pi->init); |
579 | pi->init = NULL; |
580 | } |
581 | } |
582 | |
583 | DEFVECTOR_CLEAR(pv_clear, Param, p_clear); |
584 | DEFVECTOR_CLEAR(piv_clear, ParamInit, pi_clear); |
585 | |
586 | static void ps_clear(pTHX_ ParamSpec *ps) { |
587 | p_clear(aTHX_ &ps->invocant); |
588 | |
589 | pv_clear(aTHX_ &ps->positional_required); |
590 | piv_clear(aTHX_ &ps->positional_optional); |
591 | |
592 | pv_clear(aTHX_ &ps->named_required); |
593 | piv_clear(aTHX_ &ps->named_optional); |
594 | |
595 | p_clear(aTHX_ &ps->slurpy); |
596 | } |
597 | |
598 | static int ps_contains(pTHX_ const ParamSpec *ps, SV *sv) { |
599 | size_t i, lim; |
600 | |
601 | if (ps->invocant.name && sv_eq(sv, ps->invocant.name)) { |
602 | return 1; |
603 | } |
604 | |
605 | for (i = 0, lim = ps->positional_required.used; i < lim; i++) { |
606 | if (sv_eq(sv, ps->positional_required.data[i].name)) { |
607 | return 1; |
608 | } |
609 | } |
610 | |
611 | for (i = 0, lim = ps->positional_optional.used; i < lim; i++) { |
612 | if (sv_eq(sv, ps->positional_optional.data[i].param.name)) { |
613 | return 1; |
614 | } |
615 | } |
616 | |
617 | for (i = 0, lim = ps->named_required.used; i < lim; i++) { |
618 | if (sv_eq(sv, ps->named_required.data[i].name)) { |
619 | return 1; |
620 | } |
621 | } |
622 | |
623 | for (i = 0, lim = ps->named_optional.used; i < lim; i++) { |
624 | if (sv_eq(sv, ps->named_optional.data[i].param.name)) { |
625 | return 1; |
626 | } |
627 | } |
628 | |
629 | return 0; |
630 | } |
631 | |
632 | static void ps_free_void(pTHX_ void *p) { |
633 | ps_clear(aTHX_ p); |
634 | Safefree(p); |
635 | } |
636 | |
637 | static int args_min(pTHX_ const ParamSpec *ps, const KWSpec *ks) { |
638 | int n = 0; |
639 | if (!ps) { |
640 | return SvTRUE(ks->shift) ? 1 : 0; |
641 | } |
642 | if (ps->invocant.name) { |
643 | n++; |
644 | } |
645 | n += ps->positional_required.used; |
646 | n += ps->named_required.used * 2; |
647 | return n; |
648 | } |
649 | |
650 | static int args_max(const ParamSpec *ps) { |
651 | int n = 0; |
652 | if (!ps) { |
653 | return -1; |
654 | } |
655 | if (ps->invocant.name) { |
656 | n++; |
657 | } |
658 | n += ps->positional_required.used; |
659 | n += ps->positional_optional.used; |
660 | if (ps->named_required.used || ps->named_optional.used || ps->slurpy.name) { |
661 | n = -1; |
662 | } |
663 | return n; |
664 | } |
665 | |
666 | static size_t count_positional_params(const ParamSpec *ps) { |
667 | return ps->positional_required.used + ps->positional_optional.used; |
668 | } |
669 | |
670 | static size_t count_named_params(const ParamSpec *ps) { |
671 | return ps->named_required.used + ps->named_optional.used; |
672 | } |
673 | |
674 | enum { |
675 | PARAM_INVOCANT = 0x01, |
676 | PARAM_NAMED = 0x02 |
677 | }; |
678 | |
679 | /* *pinit must be NULL on entry. |
680 | * caller must free *pinit on error. |
681 | */ |
682 | static PADOFFSET parse_param( |
683 | pTHX_ |
e4648f19 |
684 | Sentinel sen, |
e158cf8f |
685 | const SV *declarator, const KWSpec *spec, ParamSpec *param_spec, |
686 | int *pflags, SV **pname, OP **pinit |
687 | ) { |
688 | I32 c; |
689 | char sigil; |
690 | SV *name; |
691 | |
692 | assert(!*pinit); |
693 | *pflags = 0; |
694 | |
695 | c = lex_peek_unichar(0); |
696 | |
697 | if (c == ':') { |
698 | lex_read_unichar(0); |
699 | lex_read_space(0); |
700 | |
701 | *pflags |= PARAM_NAMED; |
702 | |
703 | c = lex_peek_unichar(0); |
704 | } |
705 | |
706 | if (c == -1) { |
707 | croak("In %"SVf": unterminated parameter list", SVfARG(declarator)); |
708 | } |
709 | if (!(c == '$' || c == '@' || c == '%')) { |
710 | croak("In %"SVf": unexpected '%c' in parameter list (expecting a sigil)", SVfARG(declarator), (int)c); |
711 | } |
712 | |
713 | sigil = c; |
714 | |
715 | lex_read_unichar(0); |
716 | lex_read_space(0); |
717 | |
e4648f19 |
718 | if (!(name = my_scan_word(aTHX_ sen, FALSE))) { |
e158cf8f |
719 | croak("In %"SVf": missing identifier after '%c'", SVfARG(declarator), sigil); |
720 | } |
721 | sv_insert(name, 0, 0, &sigil, 1); |
722 | *pname = name; |
723 | |
724 | lex_read_space(0); |
725 | c = lex_peek_unichar(0); |
726 | |
727 | if (c == '=') { |
728 | lex_read_unichar(0); |
729 | lex_read_space(0); |
730 | |
731 | |
732 | if (!param_spec->invocant.name && SvTRUE(spec->shift)) { |
733 | param_spec->invocant.name = spec->shift; |
734 | param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL); |
735 | } |
736 | |
737 | *pinit = parse_termexpr(0); |
738 | |
739 | lex_read_space(0); |
740 | c = lex_peek_unichar(0); |
741 | } |
742 | |
743 | if (c == ':') { |
744 | *pflags |= PARAM_INVOCANT; |
745 | lex_read_unichar(0); |
746 | lex_read_space(0); |
747 | } else if (c == ',') { |
748 | lex_read_unichar(0); |
749 | lex_read_space(0); |
750 | } else if (c != ')') { |
751 | if (c == -1) { |
752 | croak("In %"SVf": unterminated parameter list", SVfARG(declarator)); |
753 | } |
754 | croak("In %"SVf": unexpected '%c' in parameter list (expecting ',')", SVfARG(declarator), (int)c); |
755 | } |
756 | |
757 | return pad_add_name_sv(*pname, IF_HAVE_PERL_5_16(padadd_NO_DUP_CHECK, 0), NULL, NULL); |
758 | } |
759 | |
760 | static OP *my_var_g(pTHX_ I32 type, I32 flags, PADOFFSET padoff) { |
761 | OP *var = newOP(type, flags); |
762 | var->op_targ = padoff; |
763 | return var; |
764 | } |
765 | |
766 | static OP *my_var(pTHX_ I32 flags, PADOFFSET padoff) { |
767 | return my_var_g(aTHX_ OP_PADSV, flags, padoff); |
768 | } |
769 | |
fc634bba |
770 | static OP *mkhvelem(pTHX_ PADOFFSET h, OP *k) { |
771 | OP *hv = my_var_g(aTHX_ OP_PADHV, OPf_REF, h); |
772 | return newBINOP(OP_HELEM, 0, hv, k); |
773 | } |
774 | |
775 | static OP *mkconstsv(pTHX_ SV *sv) { |
776 | return newSVOP(OP_CONST, 0, sv); |
777 | } |
778 | |
779 | static OP *mkconstiv(pTHX_ IV i) { |
780 | return mkconstsv(aTHX_ newSViv(i)); |
781 | } |
782 | |
783 | static OP *mkconstpv(pTHX_ const char *p, size_t n) { |
784 | return mkconstsv(aTHX_ newSVpv(p, n)); |
785 | } |
786 | |
787 | #define mkconstpvs(S) mkconstpv(aTHX_ "" S "", sizeof S - 1) |
788 | |
53c979f0 |
789 | static void register_info(pTHX_ UV key, SV *declarator, const KWSpec *kws, const ParamSpec *ps) { |
790 | dSP; |
791 | |
792 | ENTER; |
793 | SAVETMPS; |
794 | |
795 | PUSHMARK(SP); |
796 | EXTEND(SP, 8); |
797 | |
798 | /* 0 */ { |
799 | mPUSHu(key); |
800 | } |
801 | /* 1 */ { |
802 | size_t n; |
803 | char *p = SvPV(declarator, n); |
804 | char *q = memchr(p, ' ', n); |
805 | mPUSHp(p, q ? q - p : n); |
806 | } |
807 | if (!ps) { |
808 | if (SvTRUE(kws->shift)) { |
809 | PUSHs(kws->shift); |
810 | } else { |
811 | PUSHmortal; |
812 | } |
813 | mPUSHs(newRV_noinc((SV *)newAV())); |
814 | mPUSHs(newRV_noinc((SV *)newAV())); |
815 | mPUSHs(newRV_noinc((SV *)newAV())); |
816 | mPUSHs(newRV_noinc((SV *)newAV())); |
817 | mPUSHp("@_", 2); |
818 | } else { |
819 | /* 2 */ { |
820 | if (ps->invocant.name) { |
821 | PUSHs(ps->invocant.name); |
822 | } else { |
823 | PUSHmortal; |
824 | } |
825 | } |
826 | /* 3 */ { |
827 | size_t i, lim; |
828 | AV *av; |
829 | |
830 | lim = ps->positional_required.used; |
831 | |
832 | av = newAV(); |
833 | if (lim) { |
834 | av_extend(av, lim - 1); |
835 | for (i = 0; i < lim; i++) { |
836 | av_push(av, SvREFCNT_inc_simple_NN(ps->positional_required.data[i].name)); |
837 | } |
838 | } |
839 | |
840 | mPUSHs(newRV_noinc((SV *)av)); |
841 | } |
842 | /* 4 */ { |
843 | size_t i, lim; |
844 | AV *av; |
845 | |
846 | lim = ps->positional_optional.used; |
847 | |
848 | av = newAV(); |
849 | if (lim) { |
850 | av_extend(av, lim - 1); |
851 | for (i = 0; i < lim; i++) { |
852 | av_push(av, SvREFCNT_inc_simple_NN(ps->positional_optional.data[i].param.name)); |
853 | } |
854 | } |
855 | |
856 | mPUSHs(newRV_noinc((SV *)av)); |
857 | } |
858 | /* 5 */ { |
859 | size_t i, lim; |
860 | AV *av; |
861 | |
862 | lim = ps->named_required.used; |
863 | |
864 | av = newAV(); |
865 | if (lim) { |
866 | av_extend(av, lim - 1); |
867 | for (i = 0; i < lim; i++) { |
868 | av_push(av, SvREFCNT_inc_simple_NN(ps->named_required.data[i].name)); |
869 | } |
870 | } |
871 | |
872 | mPUSHs(newRV_noinc((SV *)av)); |
873 | } |
874 | /* 6 */ { |
875 | size_t i, lim; |
876 | AV *av; |
877 | |
878 | lim = ps->named_optional.used; |
879 | |
880 | av = newAV(); |
881 | if (lim) { |
882 | av_extend(av, lim - 1); |
883 | for (i = 0; i < lim; i++) { |
884 | av_push(av, SvREFCNT_inc_simple_NN(ps->named_optional.data[i].param.name)); |
885 | } |
886 | } |
887 | |
888 | mPUSHs(newRV_noinc((SV *)av)); |
889 | } |
890 | /* 7 */ { |
891 | if (ps->slurpy.name) { |
892 | PUSHs(ps->slurpy.name); |
893 | } else { |
894 | PUSHmortal; |
895 | } |
896 | } |
897 | } |
898 | PUTBACK; |
899 | |
900 | call_pv(MY_PKG "::_register_info", G_VOID); |
901 | |
902 | FREETMPS; |
903 | LEAVE; |
904 | } |
905 | |
e4648f19 |
906 | static int parse_fun(pTHX_ Sentinel sen, OP **pop, const char *keyword_ptr, STRLEN keyword_len, const KWSpec *spec) { |
e158cf8f |
907 | ParamSpec *param_spec; |
c311cef3 |
908 | SV *declarator; |
909 | I32 floor_ix; |
63915d26 |
910 | int save_ix; |
c311cef3 |
911 | SV *saw_name; |
1e0f1595 |
912 | OP **prelude_sentinel; |
c311cef3 |
913 | SV *proto; |
914 | OP **attrs_sentinel, *body; |
915 | unsigned builtin_attrs; |
db81d362 |
916 | I32 c; |
917 | |
e4648f19 |
918 | declarator = sentinel_mortalize(sen, newSVpvn(keyword_ptr, keyword_len)); |
db81d362 |
919 | |
db81d362 |
920 | lex_read_space(0); |
921 | |
c311cef3 |
922 | builtin_attrs = 0; |
923 | |
db81d362 |
924 | /* function name */ |
c311cef3 |
925 | saw_name = NULL; |
e4648f19 |
926 | if ((spec->flags & FLAG_NAME_OK) && (saw_name = my_scan_word(aTHX_ sen, TRUE))) { |
c311cef3 |
927 | |
928 | if (PL_parser->expect != XSTATE) { |
929 | /* bail out early so we don't predeclare $saw_name */ |
930 | croak("In %"SVf": I was expecting a function body, not \"%"SVf"\"", SVfARG(declarator), SVfARG(saw_name)); |
931 | } |
932 | |
db81d362 |
933 | sv_catpvs(declarator, " "); |
c311cef3 |
934 | sv_catsv(declarator, saw_name); |
935 | |
936 | if ( |
937 | sv_eq_pvs(saw_name, "BEGIN") || |
938 | sv_eq_pvs(saw_name, "END") || |
939 | sv_eq_pvs(saw_name, "INIT") || |
940 | sv_eq_pvs(saw_name, "CHECK") || |
941 | sv_eq_pvs(saw_name, "UNITCHECK") |
942 | ) { |
943 | builtin_attrs |= MY_ATTR_SPECIAL; |
944 | } |
945 | |
db81d362 |
946 | lex_read_space(0); |
63915d26 |
947 | } else if (!(spec->flags & FLAG_ANON_OK)) { |
31534187 |
948 | croak("I was expecting a function name, not \"%.*s\"", (int)(PL_parser->bufend - PL_parser->bufptr), PL_parser->bufptr); |
db81d362 |
949 | } else { |
950 | sv_catpvs(declarator, " (anon)"); |
951 | } |
952 | |
63915d26 |
953 | /* we're a subroutine declaration */ |
c311cef3 |
954 | floor_ix = start_subparse(FALSE, saw_name ? 0 : CVf_ANON); |
955 | SAVEFREESV(PL_compcv); |
956 | |
63915d26 |
957 | /* create outer block: '{' */ |
958 | save_ix = S_block_start(aTHX_ TRUE); |
959 | |
1e0f1595 |
960 | /* initialize synthetic optree */ |
961 | Newx(prelude_sentinel, 1, OP *); |
962 | *prelude_sentinel = NULL; |
e4648f19 |
963 | sentinel_register(sen, prelude_sentinel, free_ptr_op); |
1e0f1595 |
964 | |
db81d362 |
965 | /* parameters */ |
e158cf8f |
966 | param_spec = NULL; |
63915d26 |
967 | |
db81d362 |
968 | c = lex_peek_unichar(0); |
969 | if (c == '(') { |
e158cf8f |
970 | OP **init_sentinel; |
971 | |
972 | Newx(init_sentinel, 1, OP *); |
973 | *init_sentinel = NULL; |
e4648f19 |
974 | sentinel_register(sen, init_sentinel, free_ptr_op); |
e158cf8f |
975 | |
976 | Newx(param_spec, 1, ParamSpec); |
977 | ps_init(param_spec); |
e4648f19 |
978 | sentinel_register(sen, param_spec, ps_free_void); |
db81d362 |
979 | |
980 | lex_read_unichar(0); |
981 | lex_read_space(0); |
982 | |
e158cf8f |
983 | while ((c = lex_peek_unichar(0)) != ')') { |
984 | int flags; |
985 | SV *name; |
986 | char sigil; |
987 | PADOFFSET padoff; |
c311cef3 |
988 | |
e4648f19 |
989 | padoff = parse_param(aTHX_ sen, declarator, spec, param_spec, &flags, &name, init_sentinel); |
c311cef3 |
990 | |
e158cf8f |
991 | S_intro_my(aTHX); |
63915d26 |
992 | |
e158cf8f |
993 | sigil = SvPV_nolen(name)[0]; |
db81d362 |
994 | |
e158cf8f |
995 | /* internal consistency */ |
996 | if (flags & PARAM_NAMED) { |
997 | if (flags & PARAM_INVOCANT) { |
998 | croak("In %"SVf": invocant %"SVf" can't be a named parameter", SVfARG(declarator), SVfARG(name)); |
db81d362 |
999 | } |
e158cf8f |
1000 | if (sigil != '$') { |
1001 | croak("In %"SVf": named parameter %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash"); |
db81d362 |
1002 | } |
e158cf8f |
1003 | } else if (flags & PARAM_INVOCANT) { |
1004 | if (*init_sentinel) { |
1005 | croak("In %"SVf": invocant %"SVf" can't have a default value", SVfARG(declarator), SVfARG(name)); |
db81d362 |
1006 | } |
e158cf8f |
1007 | if (sigil != '$') { |
1008 | croak("In %"SVf": invocant %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash"); |
1009 | } |
1010 | } else if (sigil != '$' && *init_sentinel) { |
1011 | croak("In %"SVf": %s %"SVf" can't have a default value", SVfARG(declarator), sigil == '@' ? "array" : "hash", SVfARG(name)); |
1012 | } |
db81d362 |
1013 | |
e158cf8f |
1014 | /* external constraints */ |
1015 | if (param_spec->slurpy.name) { |
1016 | croak("In %"SVf": I was expecting \")\" after \"%"SVf"\", not \"%"SVf"\"", SVfARG(declarator), SVfARG(param_spec->slurpy.name), SVfARG(name)); |
1017 | } |
1018 | if (sigil != '$') { |
1019 | assert(!*init_sentinel); |
1020 | param_spec->slurpy.name = name; |
1021 | param_spec->slurpy.padoff = padoff; |
1022 | continue; |
1023 | } |
d8e5d540 |
1024 | |
e158cf8f |
1025 | if (!(flags & PARAM_NAMED) && count_named_params(param_spec)) { |
1026 | 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)); |
1027 | } |
d8e5d540 |
1028 | |
e158cf8f |
1029 | if (flags & PARAM_INVOCANT) { |
1030 | if (param_spec->invocant.name) { |
1031 | croak("In %"SVf": invalid double invocants %"SVf", %"SVf"", SVfARG(declarator), SVfARG(param_spec->invocant.name), SVfARG(name)); |
1032 | } |
1033 | if (count_positional_params(param_spec) || count_named_params(param_spec)) { |
1034 | croak("In %"SVf": invocant %"SVf" must be first in parameter list", SVfARG(declarator), SVfARG(name)); |
63915d26 |
1035 | } |
e158cf8f |
1036 | if (!(spec->flags & FLAG_INVOCANT)) { |
1037 | croak("In %"SVf": invocant %"SVf" not allowed here", SVfARG(declarator), SVfARG(name)); |
1038 | } |
1039 | param_spec->invocant.name = name; |
1040 | param_spec->invocant.padoff = padoff; |
1041 | continue; |
1042 | } |
63915d26 |
1043 | |
e158cf8f |
1044 | if (*init_sentinel && !(spec->flags & FLAG_DEFAULT_ARGS)) { |
1045 | croak("In %"SVf": default argument for %"SVf" not allowed here", SVfARG(declarator), SVfARG(name)); |
1046 | } |
1e0f1595 |
1047 | |
e158cf8f |
1048 | if (ps_contains(aTHX_ param_spec, name)) { |
1049 | croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(name)); |
1050 | } |
1e0f1595 |
1051 | |
e158cf8f |
1052 | if (flags & PARAM_NAMED) { |
1053 | if (!(spec->flags & FLAG_NAMED_PARAMS)) { |
1054 | croak("In %"SVf": named parameter :%"SVf" not allowed here", SVfARG(declarator), SVfARG(name)); |
1e0f1595 |
1055 | } |
1056 | |
e158cf8f |
1057 | if (*init_sentinel) { |
1058 | ParamInit *pi = piv_extend(¶m_spec->named_optional); |
1059 | pi->param.name = name; |
1060 | pi->param.padoff = padoff; |
1061 | pi->init = *init_sentinel; |
1062 | *init_sentinel = NULL; |
1063 | param_spec->named_optional.used++; |
1064 | } else { |
67fc1ddb |
1065 | Param *p; |
1066 | |
e158cf8f |
1067 | if (param_spec->positional_optional.used) { |
1068 | 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)); |
1069 | } |
d8e5d540 |
1070 | |
67fc1ddb |
1071 | p = pv_extend(¶m_spec->named_required); |
e158cf8f |
1072 | p->name = name; |
1073 | p->padoff = padoff; |
1074 | param_spec->named_required.used++; |
1075 | } |
1076 | } else { |
1077 | if (*init_sentinel || param_spec->positional_optional.used) { |
1078 | ParamInit *pi = piv_extend(¶m_spec->positional_optional); |
1079 | pi->param.name = name; |
1080 | pi->param.padoff = padoff; |
1081 | pi->init = *init_sentinel; |
1082 | *init_sentinel = NULL; |
1083 | param_spec->positional_optional.used++; |
1084 | } else { |
1085 | Param *p = pv_extend(¶m_spec->positional_required); |
1086 | p->name = name; |
1087 | p->padoff = padoff; |
1088 | param_spec->positional_required.used++; |
db81d362 |
1089 | } |
1090 | } |
1091 | |
e158cf8f |
1092 | } |
1093 | lex_read_unichar(0); |
1094 | lex_read_space(0); |
1095 | *init_sentinel = NULL; |
db81d362 |
1096 | |
e158cf8f |
1097 | if (!param_spec->invocant.name && SvTRUE(spec->shift)) { |
1098 | if (ps_contains(aTHX_ param_spec, spec->shift)) { |
1099 | croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(spec->shift)); |
db81d362 |
1100 | } |
e158cf8f |
1101 | |
1102 | param_spec->invocant.name = spec->shift; |
1103 | param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL); |
db81d362 |
1104 | } |
1105 | } |
1106 | |
1107 | /* prototype */ |
c311cef3 |
1108 | proto = NULL; |
db81d362 |
1109 | c = lex_peek_unichar(0); |
1110 | if (c == ':') { |
1111 | lex_read_unichar(0); |
1112 | lex_read_space(0); |
1113 | |
1114 | c = lex_peek_unichar(0); |
1115 | if (c != '(') { |
c311cef3 |
1116 | lex_stuff_pvs(":", 0); |
1117 | c = ':'; |
db81d362 |
1118 | } else { |
31534187 |
1119 | lex_read_unichar(0); |
e4648f19 |
1120 | if (!(proto = my_scan_parens_tail(aTHX_ sen, FALSE))) { |
f34187b8 |
1121 | croak("In %"SVf": prototype not terminated", SVfARG(declarator)); |
db81d362 |
1122 | } |
e4648f19 |
1123 | my_check_prototype(aTHX_ sen, declarator, proto); |
db81d362 |
1124 | lex_read_space(0); |
c311cef3 |
1125 | c = lex_peek_unichar(0); |
514bcaa6 |
1126 | if (!(c == ':' || c == '{')) { |
1127 | lex_stuff_pvs(":", 0); |
1128 | c = ':'; |
1129 | } |
db81d362 |
1130 | } |
1131 | } |
1132 | |
db81d362 |
1133 | /* attributes */ |
c311cef3 |
1134 | Newx(attrs_sentinel, 1, OP *); |
1135 | *attrs_sentinel = NULL; |
e4648f19 |
1136 | sentinel_register(sen, attrs_sentinel, free_ptr_op); |
c311cef3 |
1137 | |
63915d26 |
1138 | if (c == ':' || c == '{') /* '}' - hi, vim */ { |
c311cef3 |
1139 | |
1140 | /* kludge default attributes in */ |
1141 | if (SvTRUE(spec->attrs) && SvPV_nolen(spec->attrs)[0] == ':') { |
1142 | lex_stuff_sv(spec->attrs, 0); |
1143 | c = ':'; |
1144 | } |
b72eb6ee |
1145 | |
db81d362 |
1146 | if (c == ':') { |
db81d362 |
1147 | lex_read_unichar(0); |
1148 | lex_read_space(0); |
db81d362 |
1149 | c = lex_peek_unichar(0); |
c311cef3 |
1150 | |
1151 | for (;;) { |
1152 | SV *attr; |
1153 | |
e4648f19 |
1154 | if (!(attr = my_scan_word(aTHX_ sen, FALSE))) { |
c311cef3 |
1155 | break; |
db81d362 |
1156 | } |
c311cef3 |
1157 | |
db81d362 |
1158 | lex_read_space(0); |
1159 | c = lex_peek_unichar(0); |
c311cef3 |
1160 | |
1161 | if (c != '(') { |
1162 | if (sv_eq_pvs(attr, "lvalue")) { |
1163 | builtin_attrs |= MY_ATTR_LVALUE; |
1164 | attr = NULL; |
1165 | } else if (sv_eq_pvs(attr, "method")) { |
1166 | builtin_attrs |= MY_ATTR_METHOD; |
1167 | attr = NULL; |
1168 | } |
1169 | } else { |
31534187 |
1170 | SV *sv; |
1171 | lex_read_unichar(0); |
e4648f19 |
1172 | if (!(sv = my_scan_parens_tail(aTHX_ sen, TRUE))) { |
c311cef3 |
1173 | croak("In %"SVf": unterminated attribute parameter in attribute list", SVfARG(declarator)); |
1174 | } |
31534187 |
1175 | sv_catpvs(attr, "("); |
c311cef3 |
1176 | sv_catsv(attr, sv); |
31534187 |
1177 | sv_catpvs(attr, ")"); |
c311cef3 |
1178 | |
1179 | lex_read_space(0); |
1180 | c = lex_peek_unichar(0); |
1181 | } |
1182 | |
1183 | if (attr) { |
fc634bba |
1184 | *attrs_sentinel = op_append_elem(OP_LIST, *attrs_sentinel, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(attr))); |
c311cef3 |
1185 | } |
1186 | |
1187 | if (c == ':') { |
1188 | lex_read_unichar(0); |
1189 | lex_read_space(0); |
1190 | c = lex_peek_unichar(0); |
1191 | } |
db81d362 |
1192 | } |
1193 | } |
1194 | } |
1195 | |
1196 | /* body */ |
63915d26 |
1197 | if (c != '{') /* '}' - hi, vim */ { |
85bc3fbd |
1198 | croak("In %"SVf": I was expecting a function body, not \"%c\"", SVfARG(declarator), (int)c); |
db81d362 |
1199 | } |
c311cef3 |
1200 | |
63915d26 |
1201 | /* surprise predeclaration! */ |
1202 | if (saw_name) { |
1203 | /* 'sub NAME (PROTO);' to make name/proto known to perl before it |
1204 | starts parsing the body */ |
1205 | const I32 sub_ix = start_subparse(FALSE, 0); |
1206 | SAVEFREESV(PL_compcv); |
1207 | |
1208 | SvREFCNT_inc_simple_void(PL_compcv); |
1209 | |
1210 | newATTRSUB( |
1211 | sub_ix, |
fc634bba |
1212 | mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(saw_name)), |
1213 | proto ? mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(proto)) : NULL, |
63915d26 |
1214 | NULL, |
1215 | NULL |
1216 | ); |
1217 | } |
1218 | |
c311cef3 |
1219 | if (builtin_attrs & MY_ATTR_LVALUE) { |
1220 | CvLVALUE_on(PL_compcv); |
db81d362 |
1221 | } |
c311cef3 |
1222 | if (builtin_attrs & MY_ATTR_METHOD) { |
1223 | CvMETHOD_on(PL_compcv); |
1224 | } |
1225 | if (builtin_attrs & MY_ATTR_SPECIAL) { |
1226 | CvSPECIAL_on(PL_compcv); |
db81d362 |
1227 | } |
1228 | |
e158cf8f |
1229 | /* check number of arguments */ |
1e0f1595 |
1230 | if (spec->flags & FLAG_CHECK_NARGS) { |
e158cf8f |
1231 | int amin, amax; |
abccbe86 |
1232 | |
e158cf8f |
1233 | amin = args_min(aTHX_ param_spec, spec); |
1234 | if (amin > 0) { |
67fc1ddb |
1235 | OP *chk, *cond, *err, *xcroak; |
63915d26 |
1236 | |
fc634bba |
1237 | err = mkconstsv(aTHX_ newSVpvf("Not enough arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amin)); |
1238 | err = newBINOP( |
1239 | OP_CONCAT, 0, |
1240 | err, |
1241 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)) |
1242 | ); |
1243 | err = newBINOP( |
1244 | OP_CONCAT, 0, |
1245 | err, |
1246 | mkconstpvs(")") |
1247 | ); |
63915d26 |
1248 | |
67fc1ddb |
1249 | xcroak = newCVREF(OPf_WANT_SCALAR, |
1250 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))); |
1e0f1595 |
1251 | err = newUNOP(OP_ENTERSUB, OPf_STACKED, |
67fc1ddb |
1252 | op_append_elem(OP_LIST, err, xcroak)); |
63915d26 |
1253 | |
1e0f1595 |
1254 | cond = newBINOP(OP_LT, 0, |
5f50e017 |
1255 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
fc634bba |
1256 | mkconstiv(aTHX_ amin)); |
1e0f1595 |
1257 | chk = newLOGOP(OP_AND, 0, cond, err); |
63915d26 |
1258 | |
1e0f1595 |
1259 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk)); |
1260 | } |
abccbe86 |
1261 | |
e158cf8f |
1262 | amax = args_max(param_spec); |
1263 | if (amax >= 0) { |
67fc1ddb |
1264 | OP *chk, *cond, *err, *xcroak; |
63915d26 |
1265 | |
fc634bba |
1266 | err = mkconstsv(aTHX_ newSVpvf("Too many arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amax)); |
1267 | err = newBINOP( |
1268 | OP_CONCAT, 0, |
1269 | err, |
1270 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)) |
1271 | ); |
1272 | err = newBINOP( |
1273 | OP_CONCAT, 0, |
1274 | err, |
1275 | mkconstpvs(")") |
1276 | ); |
63915d26 |
1277 | |
67fc1ddb |
1278 | xcroak = newCVREF( |
fc634bba |
1279 | OPf_WANT_SCALAR, |
1280 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
1281 | ); |
1e0f1595 |
1282 | err = newUNOP(OP_ENTERSUB, OPf_STACKED, |
67fc1ddb |
1283 | op_append_elem(OP_LIST, err, xcroak)); |
63915d26 |
1284 | |
fc634bba |
1285 | cond = newBINOP( |
1286 | OP_GT, 0, |
1287 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1288 | mkconstiv(aTHX_ amax) |
1289 | ); |
1e0f1595 |
1290 | chk = newLOGOP(OP_AND, 0, cond, err); |
63915d26 |
1291 | |
1e0f1595 |
1292 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk)); |
1293 | } |
e158cf8f |
1294 | |
1295 | if (param_spec && (count_named_params(param_spec) || (param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%'))) { |
67fc1ddb |
1296 | OP *chk, *cond, *err, *xcroak; |
e158cf8f |
1297 | const UV fixed = count_positional_params(param_spec) + !!param_spec->invocant.name; |
63915d26 |
1298 | |
fc634bba |
1299 | err = mkconstsv(aTHX_ newSVpvf("Odd number of paired arguments for %"SVf"", SVfARG(declarator))); |
63915d26 |
1300 | |
67fc1ddb |
1301 | xcroak = newCVREF( |
fc634bba |
1302 | OPf_WANT_SCALAR, |
1303 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
1304 | ); |
1e0f1595 |
1305 | err = newUNOP(OP_ENTERSUB, OPf_STACKED, |
67fc1ddb |
1306 | op_append_elem(OP_LIST, err, xcroak)); |
63915d26 |
1307 | |
1e0f1595 |
1308 | cond = newBINOP(OP_GT, 0, |
5f50e017 |
1309 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
fc634bba |
1310 | mkconstiv(aTHX_ fixed)); |
e158cf8f |
1311 | cond = newLOGOP(OP_AND, 0, |
fc634bba |
1312 | cond, |
1313 | newBINOP(OP_MODULO, 0, |
1314 | fixed |
1315 | ? newBINOP(OP_SUBTRACT, 0, |
1316 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1317 | mkconstiv(aTHX_ fixed)) |
1318 | : newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1319 | mkconstiv(aTHX_ 2))); |
1e0f1595 |
1320 | chk = newLOGOP(OP_AND, 0, cond, err); |
63915d26 |
1321 | |
1e0f1595 |
1322 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk)); |
c311cef3 |
1323 | } |
1e0f1595 |
1324 | } |
c311cef3 |
1325 | |
e158cf8f |
1326 | if (!param_spec) { |
1327 | /* my $invocant = shift; */ |
1328 | if (SvTRUE(spec->shift)) { |
1329 | OP *var; |
abccbe86 |
1330 | |
e158cf8f |
1331 | var = my_var( |
1332 | aTHX_ |
1333 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1334 | pad_add_name_sv(spec->shift, 0, NULL, NULL) |
1335 | ); |
1336 | var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0)); |
c311cef3 |
1337 | |
e158cf8f |
1338 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1339 | } |
1340 | } else { |
1341 | /* my $invocant = shift; */ |
1342 | if (param_spec->invocant.name) { |
1343 | OP *var; |
c311cef3 |
1344 | |
e158cf8f |
1345 | var = my_var( |
1346 | aTHX_ |
1347 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1348 | param_spec->invocant.padoff |
1349 | ); |
1350 | var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0)); |
1e0f1595 |
1351 | |
e158cf8f |
1352 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
c311cef3 |
1353 | } |
1354 | |
e158cf8f |
1355 | /* my (...) = @_; */ |
1356 | { |
1357 | OP *lhs; |
1358 | size_t i, lim; |
63915d26 |
1359 | |
e158cf8f |
1360 | lhs = NULL; |
63915d26 |
1361 | |
e158cf8f |
1362 | for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) { |
1363 | OP *const var = my_var( |
1364 | aTHX_ |
1365 | OPf_WANT_LIST | (OPpLVAL_INTRO << 8), |
1366 | param_spec->positional_required.data[i].padoff |
1367 | ); |
1368 | lhs = op_append_elem(OP_LIST, lhs, var); |
1369 | } |
63915d26 |
1370 | |
e158cf8f |
1371 | for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) { |
1372 | OP *const var = my_var( |
1373 | aTHX_ |
1374 | OPf_WANT_LIST | (OPpLVAL_INTRO << 8), |
1375 | param_spec->positional_optional.data[i].param.padoff |
1376 | ); |
1377 | lhs = op_append_elem(OP_LIST, lhs, var); |
1378 | } |
63915d26 |
1379 | |
fc634bba |
1380 | { |
1381 | PADOFFSET padoff; |
1382 | I32 type; |
1383 | bool slurpy_hash; |
1384 | |
1385 | /* |
1386 | * cases: |
1387 | * 1) no named params |
1388 | * 1.1) slurpy |
1389 | * => put it in |
1390 | * 1.2) no slurpy |
1391 | * => nop |
1392 | * 2) named params |
1393 | * 2.1) no slurpy |
1394 | * => synthetic %{rest} |
1395 | * 2.2) slurpy is a hash |
1396 | * => put it in |
1397 | * 2.3) slurpy is an array |
1398 | * => synthetic %{rest} |
1399 | * remember to declare array later |
1400 | */ |
1401 | |
1402 | slurpy_hash = param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%'; |
1403 | if (!count_named_params(param_spec)) { |
1404 | if (param_spec->slurpy.name) { |
1405 | padoff = param_spec->slurpy.padoff; |
1406 | type = slurpy_hash ? OP_PADHV : OP_PADAV; |
1407 | } else { |
1408 | padoff = NOT_IN_PAD; |
1409 | type = OP_PADSV; |
1410 | } |
1411 | } else if (slurpy_hash) { |
1412 | padoff = param_spec->slurpy.padoff; |
1413 | type = OP_PADHV; |
e158cf8f |
1414 | } else { |
fc634bba |
1415 | padoff = param_spec->rest_hash = pad_add_name_pvs("%{rest}", 0, NULL, NULL); |
1416 | type = OP_PADHV; |
1417 | } |
1418 | |
1419 | if (padoff != NOT_IN_PAD) { |
e158cf8f |
1420 | OP *const var = my_var_g( |
1421 | aTHX_ |
fc634bba |
1422 | type, |
e158cf8f |
1423 | OPf_WANT_LIST | (OPpLVAL_INTRO << 8), |
fc634bba |
1424 | padoff |
e158cf8f |
1425 | ); |
fc634bba |
1426 | |
e158cf8f |
1427 | lhs = op_append_elem(OP_LIST, lhs, var); |
fc634bba |
1428 | |
1429 | if (type == OP_PADHV) { |
1430 | param_spec->rest_hash = padoff; |
1431 | } |
e158cf8f |
1432 | } |
1433 | } |
63915d26 |
1434 | |
e158cf8f |
1435 | if (lhs) { |
1436 | OP *rhs; |
1437 | lhs->op_flags |= OPf_PARENS; |
1438 | rhs = newAVREF(newGVOP(OP_GV, 0, PL_defgv)); |
1439 | |
1440 | *prelude_sentinel = op_append_list( |
1441 | OP_LINESEQ, *prelude_sentinel, |
1442 | newSTATEOP( |
1443 | 0, NULL, |
1444 | newASSIGNOP(OPf_STACKED, lhs, 0, rhs) |
1445 | ) |
1446 | ); |
1447 | } |
1448 | } |
63915d26 |
1449 | |
fc634bba |
1450 | /* default positional arguments */ |
e158cf8f |
1451 | { |
1452 | size_t i, lim, req; |
1453 | OP *nest; |
63915d26 |
1454 | |
e158cf8f |
1455 | nest = NULL; |
63915d26 |
1456 | |
e158cf8f |
1457 | req = param_spec->positional_required.used; |
1458 | for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) { |
1459 | ParamInit *cur = ¶m_spec->positional_optional.data[i]; |
1460 | OP *var, *cond; |
63915d26 |
1461 | |
e158cf8f |
1462 | cond = newBINOP( |
1463 | OP_LT, 0, |
1464 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
fc634bba |
1465 | mkconstiv(aTHX_ req + i + 1) |
e158cf8f |
1466 | ); |
63915d26 |
1467 | |
e158cf8f |
1468 | var = my_var(aTHX_ 0, cur->param.padoff); |
63915d26 |
1469 | |
e158cf8f |
1470 | nest = op_append_list( |
1471 | OP_LINESEQ, nest, |
1472 | newASSIGNOP(OPf_STACKED, var, 0, cur->init) |
1473 | ); |
1474 | cur->init = NULL; |
1475 | nest = newCONDOP( |
1476 | 0, |
1477 | cond, |
1478 | nest, |
1479 | NULL |
1480 | ); |
1481 | } |
1e0f1595 |
1482 | |
e158cf8f |
1483 | *prelude_sentinel = op_append_list( |
1484 | OP_LINESEQ, *prelude_sentinel, |
1485 | nest |
1486 | ); |
c311cef3 |
1487 | } |
1488 | |
e158cf8f |
1489 | /* named parameters */ |
1490 | if (count_named_params(param_spec)) { |
fc634bba |
1491 | size_t i, lim; |
1492 | |
1493 | assert(param_spec->rest_hash != NOT_IN_PAD); |
1494 | |
1495 | for (i = 0, lim = param_spec->named_required.used; i < lim; i++) { |
1496 | Param *cur = ¶m_spec->named_required.data[i]; |
1497 | size_t n; |
1498 | char *p = SvPV(cur->name, n); |
1499 | OP *var, *cond; |
1500 | |
1501 | cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1)); |
1502 | |
1503 | if (spec->flags & FLAG_CHECK_NARGS) { |
67fc1ddb |
1504 | OP *xcroak, *msg; |
fc634bba |
1505 | |
1506 | var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1)); |
1507 | var = newUNOP(OP_DELETE, 0, var); |
1508 | |
1509 | msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": missing named parameter: %.*s", SVfARG(declarator), (int)(n - 1), p + 1)); |
67fc1ddb |
1510 | xcroak = newCVREF( |
fc634bba |
1511 | OPf_WANT_SCALAR, |
1512 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
1513 | ); |
67fc1ddb |
1514 | xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak)); |
fc634bba |
1515 | |
1516 | cond = newUNOP(OP_EXISTS, 0, cond); |
1517 | |
67fc1ddb |
1518 | cond = newCONDOP(0, cond, var, xcroak); |
fc634bba |
1519 | } |
1520 | |
1521 | var = my_var( |
1522 | aTHX_ |
1523 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1524 | cur->padoff |
1525 | ); |
1526 | var = newASSIGNOP(OPf_STACKED, var, 0, cond); |
1527 | |
1528 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1529 | } |
1530 | |
1531 | for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) { |
1532 | ParamInit *cur = ¶m_spec->named_optional.data[i]; |
1533 | size_t n; |
1534 | char *p = SvPV(cur->param.name, n); |
1535 | OP *var, *cond; |
1536 | |
1537 | var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1)); |
1538 | var = newUNOP(OP_DELETE, 0, var); |
1539 | |
1540 | cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1)); |
1541 | cond = newUNOP(OP_EXISTS, 0, cond); |
1542 | |
1543 | cond = newCONDOP(0, cond, var, cur->init); |
1544 | cur->init = NULL; |
1545 | |
1546 | var = my_var( |
1547 | aTHX_ |
1548 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1549 | cur->param.padoff |
1550 | ); |
1551 | var = newASSIGNOP(OPf_STACKED, var, 0, cond); |
1552 | |
1553 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1554 | } |
1555 | |
1556 | if (!param_spec->slurpy.name) { |
1557 | if (spec->flags & FLAG_CHECK_NARGS) { |
1558 | /* croak if %{rest} */ |
67fc1ddb |
1559 | OP *xcroak, *cond, *keys, *msg; |
fc634bba |
1560 | |
1561 | keys = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash)); |
1562 | keys = newLISTOP(OP_SORT, 0, newOP(OP_PUSHMARK, 0), keys); |
1563 | { |
1564 | OP *first, *mid, *last; |
1565 | |
1566 | last = keys; |
1567 | |
1568 | mid = mkconstpvs(", "); |
1569 | mid->op_sibling = last; |
1570 | |
1571 | first = newOP(OP_PUSHMARK, 0); |
1572 | |
1573 | keys = newLISTOP(OP_JOIN, 0, first, mid); |
1574 | keys->op_targ = pad_alloc(OP_JOIN, SVs_PADTMP); |
1575 | ((LISTOP *)keys)->op_last = last; |
1576 | } |
1577 | |
1578 | msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": no such named parameter: ", SVfARG(declarator))); |
1579 | msg = newBINOP(OP_CONCAT, 0, msg, keys); |
1580 | |
67fc1ddb |
1581 | xcroak = newCVREF( |
fc634bba |
1582 | OPf_WANT_SCALAR, |
1583 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
1584 | ); |
67fc1ddb |
1585 | xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak)); |
fc634bba |
1586 | |
1587 | cond = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash)); |
67fc1ddb |
1588 | xcroak = newCONDOP(0, cond, xcroak, NULL); |
fc634bba |
1589 | |
67fc1ddb |
1590 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, xcroak)); |
fc634bba |
1591 | } else { |
1592 | OP *clear; |
1593 | |
1594 | clear = newASSIGNOP( |
1595 | OPf_STACKED, |
1596 | my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash), |
1597 | 0, |
1598 | newNULLLIST() |
1599 | ); |
1600 | |
1601 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, clear)); |
1602 | } |
1603 | } else if (param_spec->slurpy.padoff != param_spec->rest_hash) { |
1604 | OP *var, *clear; |
1605 | |
1606 | assert(SvPV_nolen(param_spec->slurpy.name)[0] == '@'); |
1607 | |
1608 | var = my_var_g( |
1609 | aTHX_ |
1610 | OP_PADAV, |
1611 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1612 | param_spec->slurpy.padoff |
1613 | ); |
1614 | |
1615 | var = newASSIGNOP(OPf_STACKED, var, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash)); |
1616 | |
1617 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1618 | |
1619 | clear = newASSIGNOP( |
1620 | OPf_STACKED, |
1621 | my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash), |
1622 | 0, |
1623 | newNULLLIST() |
1624 | ); |
1625 | |
1626 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, clear)); |
1627 | } |
1628 | } |
1e0f1595 |
1629 | } |
c311cef3 |
1630 | |
1e0f1595 |
1631 | /* finally let perl parse the actual subroutine body */ |
1632 | body = parse_block(0); |
c311cef3 |
1633 | |
1e0f1595 |
1634 | /* add '();' to make function return nothing by default */ |
1635 | /* (otherwise the invisible parameter initialization can "leak" into |
1636 | the return value: fun ($x) {}->("asdf", 0) == 2) */ |
1637 | if (*prelude_sentinel) { |
1638 | body = newSTATEOP(0, NULL, body); |
db81d362 |
1639 | } |
1640 | |
1e0f1595 |
1641 | body = op_append_list(OP_LINESEQ, *prelude_sentinel, body); |
1642 | *prelude_sentinel = NULL; |
1643 | |
c311cef3 |
1644 | /* it's go time. */ |
1645 | { |
53c979f0 |
1646 | CV *cv; |
c311cef3 |
1647 | OP *const attrs = *attrs_sentinel; |
1648 | *attrs_sentinel = NULL; |
53c979f0 |
1649 | |
c311cef3 |
1650 | SvREFCNT_inc_simple_void(PL_compcv); |
1651 | |
63915d26 |
1652 | /* close outer block: '}' */ |
1653 | S_block_end(aTHX_ save_ix, body); |
1654 | |
53c979f0 |
1655 | cv = newATTRSUB( |
c311cef3 |
1656 | floor_ix, |
53c979f0 |
1657 | saw_name ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(saw_name)) : NULL, |
c311cef3 |
1658 | proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL, |
1659 | attrs, |
1660 | body |
1661 | ); |
53c979f0 |
1662 | |
1663 | register_info(aTHX_ PTR2UV(CvROOT(cv)), declarator, spec, param_spec); |
1664 | |
1665 | if (saw_name) { |
1666 | *pop = newOP(OP_NULL, 0); |
1667 | return KEYWORD_PLUGIN_STMT; |
1668 | } |
1669 | |
1670 | *pop = newUNOP( |
1671 | OP_REFGEN, 0, |
1672 | newSVOP( |
1673 | OP_ANONCODE, 0, |
1674 | (SV *)cv |
1675 | ) |
1676 | ); |
1677 | return KEYWORD_PLUGIN_EXPR; |
db81d362 |
1678 | } |
db81d362 |
1679 | } |
1680 | |
1681 | static int my_keyword_plugin(pTHX_ char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) { |
63915d26 |
1682 | KWSpec spec; |
db81d362 |
1683 | int ret; |
e4648f19 |
1684 | Sentinel sen = { NULL }; |
db81d362 |
1685 | |
e4648f19 |
1686 | ENTER; |
db81d362 |
1687 | SAVETMPS; |
1688 | |
e4648f19 |
1689 | SAVEDESTRUCTOR_X(sentinel_clear_void, sen); |
1690 | |
1691 | if (kw_flags(aTHX_ sen, keyword_ptr, keyword_len, &spec)) { |
1692 | ret = parse_fun(aTHX_ sen, op_ptr, keyword_ptr, keyword_len, &spec); |
db81d362 |
1693 | } else { |
7dd35535 |
1694 | ret = next_keyword_plugin(aTHX_ keyword_ptr, keyword_len, op_ptr); |
db81d362 |
1695 | } |
1696 | |
1697 | FREETMPS; |
e4648f19 |
1698 | LEAVE; |
db81d362 |
1699 | |
1700 | return ret; |
1701 | } |
1702 | |
1703 | WARNINGS_RESET |
1704 | |
53c979f0 |
1705 | MODULE = Function::Parameters PACKAGE = Function::Parameters PREFIX = fp_ |
db81d362 |
1706 | PROTOTYPES: ENABLE |
1707 | |
53c979f0 |
1708 | UV |
1709 | fp__cv_root(sv) |
1710 | SV * sv |
1711 | PREINIT: |
1712 | CV *cv; |
1713 | HV *hv; |
1714 | GV *gv; |
1715 | CODE: |
1716 | cv = sv_2cv(sv, &hv, &gv, 0); |
1717 | RETVAL = PTR2UV(cv ? CvROOT(cv) : NULL); |
1718 | OUTPUT: |
1719 | RETVAL |
1720 | |
db81d362 |
1721 | BOOT: |
1722 | WARNINGS_ENABLE { |
1723 | HV *const stash = gv_stashpvs(MY_PKG, GV_ADD); |
426a4d69 |
1724 | /**/ |
d8e5d540 |
1725 | newCONSTSUB(stash, "FLAG_NAME_OK", newSViv(FLAG_NAME_OK)); |
1726 | newCONSTSUB(stash, "FLAG_ANON_OK", newSViv(FLAG_ANON_OK)); |
63915d26 |
1727 | newCONSTSUB(stash, "FLAG_DEFAULT_ARGS", newSViv(FLAG_DEFAULT_ARGS)); |
d8e5d540 |
1728 | newCONSTSUB(stash, "FLAG_CHECK_NARGS", newSViv(FLAG_CHECK_NARGS)); |
1729 | newCONSTSUB(stash, "FLAG_INVOCANT", newSViv(FLAG_INVOCANT)); |
e158cf8f |
1730 | newCONSTSUB(stash, "FLAG_NAMED_PARAMS", newSViv(FLAG_NAMED_PARAMS)); |
db81d362 |
1731 | newCONSTSUB(stash, "HINTK_KEYWORDS", newSVpvs(HINTK_KEYWORDS)); |
d8e5d540 |
1732 | newCONSTSUB(stash, "HINTK_FLAGS_", newSVpvs(HINTK_FLAGS_)); |
1733 | newCONSTSUB(stash, "HINTK_SHIFT_", newSVpvs(HINTK_SHIFT_)); |
1734 | newCONSTSUB(stash, "HINTK_ATTRS_", newSVpvs(HINTK_ATTRS_)); |
426a4d69 |
1735 | /**/ |
db81d362 |
1736 | next_keyword_plugin = PL_keyword_plugin; |
1737 | PL_keyword_plugin = my_keyword_plugin; |
1738 | } WARNINGS_RESET |