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) |
92 | |
63915d26 |
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 | |
63915d26 |
110 | static int kw_flags(pTHX_ const char *kw_ptr, STRLEN kw_len, KWSpec *spec) { |
db81d362 |
111 | HV *hints; |
112 | SV *sv, **psv; |
113 | const char *p, *kw_active; |
114 | STRLEN kw_active_len; |
115 | |
63915d26 |
116 | spec->flags = 0; |
b72eb6ee |
117 | spec->shift = sv_2mortal(newSVpvs("")); |
118 | spec->attrs = sv_2mortal(newSVpvs("")); |
db81d362 |
119 | |
120 | if (!(hints = GvHV(PL_hintgv))) { |
121 | return FALSE; |
122 | } |
123 | if (!(psv = hv_fetchs(hints, HINTK_KEYWORDS, 0))) { |
124 | return FALSE; |
125 | } |
126 | sv = *psv; |
127 | kw_active = SvPV(sv, kw_active_len); |
128 | if (kw_active_len <= kw_len) { |
129 | return FALSE; |
130 | } |
e88490f6 |
131 | for ( |
132 | p = kw_active; |
133 | (p = strchr(p, *kw_ptr)) && |
134 | p < kw_active + kw_active_len - kw_len; |
135 | p++ |
136 | ) { |
db81d362 |
137 | if ( |
138 | (p == kw_active || p[-1] == ' ') && |
139 | p[kw_len] == ' ' && |
140 | memcmp(kw_ptr, p, kw_len) == 0 |
141 | ) { |
b72eb6ee |
142 | |
d970c3e7 |
143 | #define FETCH_HINTK_INTO(NAME, PTR, LEN, X) STMT_START { \ |
b72eb6ee |
144 | const char *fk_ptr_; \ |
145 | STRLEN fk_len_; \ |
146 | SV *fk_sv_; \ |
147 | fk_sv_ = sv_2mortal(newSVpvs(HINTK_ ## NAME)); \ |
148 | sv_catpvn(fk_sv_, PTR, LEN); \ |
149 | fk_ptr_ = SvPV(fk_sv_, fk_len_); \ |
150 | if (!((X) = hv_fetch(hints, fk_ptr_, fk_len_, 0))) { \ |
151 | croak("%s: internal error: $^H{'%.*s'} not set", MY_PKG, (int)fk_len_, fk_ptr_); \ |
152 | } \ |
d970c3e7 |
153 | } STMT_END |
b72eb6ee |
154 | |
63915d26 |
155 | FETCH_HINTK_INTO(FLAGS_, kw_ptr, kw_len, psv); |
156 | spec->flags = SvIV(*psv); |
db81d362 |
157 | |
b72eb6ee |
158 | FETCH_HINTK_INTO(SHIFT_, kw_ptr, kw_len, psv); |
159 | SvSetSV(spec->shift, *psv); |
db81d362 |
160 | |
b72eb6ee |
161 | FETCH_HINTK_INTO(ATTRS_, kw_ptr, kw_len, psv); |
162 | SvSetSV(spec->attrs, *psv); |
163 | |
164 | #undef FETCH_HINTK_INTO |
db81d362 |
165 | return TRUE; |
166 | } |
167 | } |
168 | return FALSE; |
169 | } |
170 | |
171 | |
311ced6f |
172 | static void free_ptr_op(pTHX_ void *vp) { |
c311cef3 |
173 | OP **pp = vp; |
174 | op_free(*pp); |
175 | Safefree(pp); |
176 | } |
177 | |
59016bfb |
178 | #define sv_eq_pvs(SV, S) my_sv_eq_pvn(aTHX_ SV, "" S "", sizeof (S) - 1) |
c311cef3 |
179 | |
59016bfb |
180 | static int my_sv_eq_pvn(pTHX_ SV *sv, const char *p, STRLEN n) { |
c311cef3 |
181 | STRLEN sv_len; |
182 | const char *sv_p = SvPV(sv, sv_len); |
59016bfb |
183 | return memcmp(sv_p, p, n) == 0; |
c311cef3 |
184 | } |
185 | |
186 | |
187 | #include "padop_on_crack.c.inc" |
188 | |
189 | |
c311cef3 |
190 | enum { |
191 | MY_ATTR_LVALUE = 0x01, |
192 | MY_ATTR_METHOD = 0x02, |
193 | MY_ATTR_SPECIAL = 0x04 |
194 | }; |
195 | |
31534187 |
196 | static void my_sv_cat_c(pTHX_ SV *sv, U32 c) { |
197 | char ds[UTF8_MAXBYTES + 1], *d; |
198 | d = uvchr_to_utf8(ds, c); |
199 | if (d - ds > 1) { |
200 | sv_utf8_upgrade(sv); |
201 | } |
202 | sv_catpvn(sv, ds, d - ds); |
203 | } |
204 | |
205 | static bool my_is_uni_xidfirst(pTHX_ UV c) { |
206 | U8 tmpbuf[UTF8_MAXBYTES + 1]; |
207 | uvchr_to_utf8(tmpbuf, c); |
208 | return is_utf8_xidfirst(tmpbuf); |
209 | } |
210 | |
211 | static bool my_is_uni_xidcont(pTHX_ UV c) { |
212 | U8 tmpbuf[UTF8_MAXBYTES + 1]; |
213 | uvchr_to_utf8(tmpbuf, c); |
214 | return is_utf8_xidcont(tmpbuf); |
215 | } |
216 | |
217 | static SV *my_scan_word(pTHX_ bool allow_package) { |
218 | bool at_start, at_substart; |
219 | I32 c; |
220 | SV *sv = sv_2mortal(newSVpvs("")); |
221 | if (lex_bufutf8()) { |
222 | SvUTF8_on(sv); |
223 | } |
224 | |
225 | at_start = at_substart = TRUE; |
226 | c = lex_peek_unichar(0); |
227 | |
228 | while (c != -1) { |
229 | if (at_substart ? my_is_uni_xidfirst(aTHX_ c) : my_is_uni_xidcont(aTHX_ c)) { |
230 | lex_read_unichar(0); |
231 | my_sv_cat_c(aTHX_ sv, c); |
232 | at_substart = FALSE; |
233 | c = lex_peek_unichar(0); |
234 | } else if (allow_package && !at_substart && c == '\'') { |
235 | lex_read_unichar(0); |
236 | c = lex_peek_unichar(0); |
237 | if (!my_is_uni_xidfirst(aTHX_ c)) { |
238 | lex_stuff_pvs("'", 0); |
239 | break; |
240 | } |
241 | sv_catpvs(sv, "'"); |
242 | at_substart = TRUE; |
243 | } else if (allow_package && (at_start || !at_substart) && c == ':') { |
244 | lex_read_unichar(0); |
245 | if (lex_peek_unichar(0) != ':') { |
246 | lex_stuff_pvs(":", 0); |
247 | break; |
248 | } |
249 | lex_read_unichar(0); |
250 | c = lex_peek_unichar(0); |
251 | if (!my_is_uni_xidfirst(aTHX_ c)) { |
252 | lex_stuff_pvs("::", 0); |
253 | break; |
254 | } |
255 | sv_catpvs(sv, "::"); |
256 | at_substart = TRUE; |
257 | } else { |
258 | break; |
259 | } |
260 | at_start = FALSE; |
261 | } |
262 | |
263 | return SvCUR(sv) ? sv : NULL; |
264 | } |
265 | |
266 | static SV *my_scan_parens_tail(pTHX_ bool keep_backslash) { |
267 | I32 c, nesting; |
268 | SV *sv; |
269 | line_t start; |
270 | |
271 | start = CopLINE(PL_curcop); |
272 | |
273 | sv = sv_2mortal(newSVpvs("")); |
274 | if (lex_bufutf8()) { |
275 | SvUTF8_on(sv); |
276 | } |
277 | |
278 | nesting = 0; |
279 | for (;;) { |
280 | c = lex_read_unichar(0); |
281 | if (c == EOF) { |
282 | CopLINE_set(PL_curcop, start); |
283 | return NULL; |
284 | } |
285 | |
286 | if (c == '\\') { |
287 | c = lex_read_unichar(0); |
288 | if (c == EOF) { |
289 | CopLINE_set(PL_curcop, start); |
290 | return NULL; |
291 | } |
292 | if (keep_backslash || (c != '(' && c != ')')) { |
293 | sv_catpvs(sv, "\\"); |
294 | } |
295 | } else if (c == '(') { |
296 | nesting++; |
297 | } else if (c == ')') { |
298 | if (!nesting) { |
299 | break; |
300 | } |
301 | nesting--; |
302 | } |
303 | |
304 | my_sv_cat_c(aTHX_ sv, c); |
305 | } |
306 | |
307 | return sv; |
308 | } |
309 | |
310 | static void my_check_prototype(pTHX_ const SV *declarator, SV *proto) { |
311 | char *start, *r, *w, *end; |
312 | STRLEN len; |
313 | |
314 | /* strip spaces */ |
315 | start = SvPV(proto, len); |
316 | end = start + len; |
317 | |
318 | for (w = r = start; r < end; r++) { |
319 | if (!isSPACE(*r)) { |
320 | *w++ = *r; |
321 | } |
322 | } |
323 | *w = '\0'; |
324 | SvCUR_set(proto, w - start); |
325 | end = w; |
326 | len = end - start; |
327 | |
328 | if (!ckWARN(WARN_ILLEGALPROTO)) { |
329 | return; |
330 | } |
331 | |
332 | /* check for bad characters */ |
333 | if (strspn(start, "$@%*;[]&\\_+") != len) { |
334 | SV *dsv = newSVpvs_flags("", SVs_TEMP); |
335 | warner( |
336 | packWARN(WARN_ILLEGALPROTO), |
337 | "Illegal character in prototype for %"SVf" : %s", |
338 | SVfARG(declarator), |
339 | SvUTF8(proto) |
340 | ? sv_uni_display( |
341 | dsv, |
342 | proto, |
343 | len, |
344 | UNI_DISPLAY_ISPRINT |
345 | ) |
346 | : pv_pretty(dsv, start, len, 60, NULL, NULL, |
347 | PERL_PV_ESCAPE_NONASCII |
348 | ) |
349 | ); |
350 | return; |
351 | } |
352 | |
353 | for (r = start; r < end; r++) { |
354 | switch (*r) { |
355 | default: |
356 | warner( |
357 | packWARN(WARN_ILLEGALPROTO), |
358 | "Illegal character in prototype for %"SVf" : %s", |
359 | SVfARG(declarator), r |
360 | ); |
361 | return; |
362 | |
363 | case '_': |
364 | if (r[1] && !strchr(";@%", *r)) { |
365 | warner( |
366 | packWARN(WARN_ILLEGALPROTO), |
367 | "Illegal character after '_' in prototype for %"SVf" : %s", |
368 | SVfARG(declarator), r |
369 | ); |
370 | return; |
371 | } |
372 | break; |
373 | |
374 | case '@': |
375 | case '%': |
376 | if (r[1]) { |
377 | warner( |
378 | packWARN(WARN_ILLEGALPROTO), |
379 | "prototype after '%c' for %"SVf": %s", |
380 | *r, SVfARG(declarator), r + 1 |
381 | ); |
382 | return; |
383 | } |
384 | break; |
385 | |
386 | case '\\': |
387 | r++; |
388 | if (strchr("$@%&*", *r)) { |
389 | break; |
390 | } |
391 | if (*r == '[') { |
392 | r++; |
393 | for (; r < end && *r != ']'; r++) { |
394 | if (!strchr("$@%&*", *r)) { |
395 | break; |
396 | } |
397 | } |
398 | if (*r == ']' && r[-1] != '[') { |
399 | break; |
400 | } |
401 | } |
402 | warner( |
403 | packWARN(WARN_ILLEGALPROTO), |
404 | "Illegal character after '\\' in prototype for %"SVf" : %s", |
405 | SVfARG(declarator), r |
406 | ); |
407 | return; |
408 | |
409 | case '$': |
410 | case '*': |
411 | case '&': |
412 | case ';': |
413 | case '+': |
414 | break; |
415 | } |
416 | } |
417 | } |
418 | |
e158cf8f |
419 | |
420 | DEFSTRUCT(Param) { |
421 | SV *name; |
422 | PADOFFSET padoff; |
423 | }; |
424 | |
425 | DEFSTRUCT(ParamInit) { |
426 | Param param; |
427 | OP *init; |
428 | }; |
429 | |
430 | #define VEC(B) B ## _Vec |
431 | |
432 | #define DEFVECTOR(B) DEFSTRUCT(VEC(B)) { \ |
433 | B (*data); \ |
434 | size_t used, size; \ |
435 | } |
436 | |
437 | DEFVECTOR(Param); |
438 | DEFVECTOR(ParamInit); |
439 | |
440 | #define DEFVECTOR_INIT(N, B) static void N(VEC(B) *p) { \ |
441 | p->used = 0; \ |
442 | p->size = 23; \ |
443 | Newx(p->data, p->size, B); \ |
444 | } static void N(VEC(B) *) |
445 | |
446 | DEFSTRUCT(ParamSpec) { |
447 | Param invocant; |
448 | VEC(Param) positional_required; |
449 | VEC(ParamInit) positional_optional; |
450 | VEC(Param) named_required; |
451 | VEC(ParamInit) named_optional; |
452 | Param slurpy; |
453 | }; |
454 | |
455 | DEFVECTOR_INIT(pv_init, Param); |
456 | DEFVECTOR_INIT(piv_init, ParamInit); |
457 | |
458 | static void p_init(Param *p) { |
459 | p->name = NULL; |
460 | p->padoff = NOT_IN_PAD; |
461 | } |
462 | |
463 | static void ps_init(ParamSpec *ps) { |
464 | p_init(&ps->invocant); |
465 | pv_init(&ps->positional_required); |
466 | piv_init(&ps->positional_optional); |
467 | pv_init(&ps->named_required); |
468 | piv_init(&ps->named_optional); |
469 | p_init(&ps->slurpy); |
470 | } |
471 | |
472 | #define DEFVECTOR_EXTEND(N, B) static B (*N(VEC(B) *p)) { \ |
473 | assert(p->used <= p->size); \ |
474 | if (p->used == p->size) { \ |
475 | const size_t n = p->size / 2 * 3 + 1; \ |
476 | Renew(p->data, n, B); \ |
477 | p->size = n; \ |
478 | } \ |
479 | return &p->data[p->used]; \ |
480 | } static B (*N(VEC(B) *)) |
481 | |
482 | DEFVECTOR_EXTEND(pv_extend, Param); |
483 | DEFVECTOR_EXTEND(piv_extend, ParamInit); |
484 | |
485 | #define DEFVECTOR_CLEAR(N, B, F) static void N(pTHX_ VEC(B) *p) { \ |
486 | while (p->used) { \ |
487 | p->used--; \ |
488 | F(aTHX_ &p->data[p->used]); \ |
489 | } \ |
490 | Safefree(p->data); \ |
491 | p->data = NULL; \ |
492 | p->size = 0; \ |
493 | } static void N(pTHX_ VEC(B) *) |
494 | |
495 | static void p_clear(pTHX_ Param *p) { |
496 | p->name = NULL; |
497 | p->padoff = NOT_IN_PAD; |
498 | } |
499 | |
500 | static void pi_clear(pTHX_ ParamInit *pi) { |
501 | p_clear(aTHX_ &pi->param); |
502 | if (pi->init) { |
503 | op_free(pi->init); |
504 | pi->init = NULL; |
505 | } |
506 | } |
507 | |
508 | DEFVECTOR_CLEAR(pv_clear, Param, p_clear); |
509 | DEFVECTOR_CLEAR(piv_clear, ParamInit, pi_clear); |
510 | |
511 | static void ps_clear(pTHX_ ParamSpec *ps) { |
512 | p_clear(aTHX_ &ps->invocant); |
513 | |
514 | pv_clear(aTHX_ &ps->positional_required); |
515 | piv_clear(aTHX_ &ps->positional_optional); |
516 | |
517 | pv_clear(aTHX_ &ps->named_required); |
518 | piv_clear(aTHX_ &ps->named_optional); |
519 | |
520 | p_clear(aTHX_ &ps->slurpy); |
521 | } |
522 | |
523 | static int ps_contains(pTHX_ const ParamSpec *ps, SV *sv) { |
524 | size_t i, lim; |
525 | |
526 | if (ps->invocant.name && sv_eq(sv, ps->invocant.name)) { |
527 | return 1; |
528 | } |
529 | |
530 | for (i = 0, lim = ps->positional_required.used; i < lim; i++) { |
531 | if (sv_eq(sv, ps->positional_required.data[i].name)) { |
532 | return 1; |
533 | } |
534 | } |
535 | |
536 | for (i = 0, lim = ps->positional_optional.used; i < lim; i++) { |
537 | if (sv_eq(sv, ps->positional_optional.data[i].param.name)) { |
538 | return 1; |
539 | } |
540 | } |
541 | |
542 | for (i = 0, lim = ps->named_required.used; i < lim; i++) { |
543 | if (sv_eq(sv, ps->named_required.data[i].name)) { |
544 | return 1; |
545 | } |
546 | } |
547 | |
548 | for (i = 0, lim = ps->named_optional.used; i < lim; i++) { |
549 | if (sv_eq(sv, ps->named_optional.data[i].param.name)) { |
550 | return 1; |
551 | } |
552 | } |
553 | |
554 | return 0; |
555 | } |
556 | |
557 | static void ps_free_void(pTHX_ void *p) { |
558 | ps_clear(aTHX_ p); |
559 | Safefree(p); |
560 | } |
561 | |
562 | static int args_min(pTHX_ const ParamSpec *ps, const KWSpec *ks) { |
563 | int n = 0; |
564 | if (!ps) { |
565 | return SvTRUE(ks->shift) ? 1 : 0; |
566 | } |
567 | if (ps->invocant.name) { |
568 | n++; |
569 | } |
570 | n += ps->positional_required.used; |
571 | n += ps->named_required.used * 2; |
572 | return n; |
573 | } |
574 | |
575 | static int args_max(const ParamSpec *ps) { |
576 | int n = 0; |
577 | if (!ps) { |
578 | return -1; |
579 | } |
580 | if (ps->invocant.name) { |
581 | n++; |
582 | } |
583 | n += ps->positional_required.used; |
584 | n += ps->positional_optional.used; |
585 | if (ps->named_required.used || ps->named_optional.used || ps->slurpy.name) { |
586 | n = -1; |
587 | } |
588 | return n; |
589 | } |
590 | |
591 | static size_t count_positional_params(const ParamSpec *ps) { |
592 | return ps->positional_required.used + ps->positional_optional.used; |
593 | } |
594 | |
595 | static size_t count_named_params(const ParamSpec *ps) { |
596 | return ps->named_required.used + ps->named_optional.used; |
597 | } |
598 | |
599 | enum { |
600 | PARAM_INVOCANT = 0x01, |
601 | PARAM_NAMED = 0x02 |
602 | }; |
603 | |
604 | /* *pinit must be NULL on entry. |
605 | * caller must free *pinit on error. |
606 | */ |
607 | static PADOFFSET parse_param( |
608 | pTHX_ |
609 | const SV *declarator, const KWSpec *spec, ParamSpec *param_spec, |
610 | int *pflags, SV **pname, OP **pinit |
611 | ) { |
612 | I32 c; |
613 | char sigil; |
614 | SV *name; |
615 | |
616 | assert(!*pinit); |
617 | *pflags = 0; |
618 | |
619 | c = lex_peek_unichar(0); |
620 | |
621 | if (c == ':') { |
622 | lex_read_unichar(0); |
623 | lex_read_space(0); |
624 | |
625 | *pflags |= PARAM_NAMED; |
626 | |
627 | c = lex_peek_unichar(0); |
628 | } |
629 | |
630 | if (c == -1) { |
631 | croak("In %"SVf": unterminated parameter list", SVfARG(declarator)); |
632 | } |
633 | if (!(c == '$' || c == '@' || c == '%')) { |
634 | croak("In %"SVf": unexpected '%c' in parameter list (expecting a sigil)", SVfARG(declarator), (int)c); |
635 | } |
636 | |
637 | sigil = c; |
638 | |
639 | lex_read_unichar(0); |
640 | lex_read_space(0); |
641 | |
642 | if (!(name = my_scan_word(aTHX_ FALSE))) { |
643 | croak("In %"SVf": missing identifier after '%c'", SVfARG(declarator), sigil); |
644 | } |
645 | sv_insert(name, 0, 0, &sigil, 1); |
646 | *pname = name; |
647 | |
648 | lex_read_space(0); |
649 | c = lex_peek_unichar(0); |
650 | |
651 | if (c == '=') { |
652 | lex_read_unichar(0); |
653 | lex_read_space(0); |
654 | |
655 | |
656 | if (!param_spec->invocant.name && SvTRUE(spec->shift)) { |
657 | param_spec->invocant.name = spec->shift; |
658 | param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL); |
659 | } |
660 | |
661 | *pinit = parse_termexpr(0); |
662 | |
663 | lex_read_space(0); |
664 | c = lex_peek_unichar(0); |
665 | } |
666 | |
667 | if (c == ':') { |
668 | *pflags |= PARAM_INVOCANT; |
669 | lex_read_unichar(0); |
670 | lex_read_space(0); |
671 | } else if (c == ',') { |
672 | lex_read_unichar(0); |
673 | lex_read_space(0); |
674 | } else if (c != ')') { |
675 | if (c == -1) { |
676 | croak("In %"SVf": unterminated parameter list", SVfARG(declarator)); |
677 | } |
678 | croak("In %"SVf": unexpected '%c' in parameter list (expecting ',')", SVfARG(declarator), (int)c); |
679 | } |
680 | |
681 | return pad_add_name_sv(*pname, IF_HAVE_PERL_5_16(padadd_NO_DUP_CHECK, 0), NULL, NULL); |
682 | } |
683 | |
684 | static OP *my_var_g(pTHX_ I32 type, I32 flags, PADOFFSET padoff) { |
685 | OP *var = newOP(type, flags); |
686 | var->op_targ = padoff; |
687 | return var; |
688 | } |
689 | |
690 | static OP *my_var(pTHX_ I32 flags, PADOFFSET padoff) { |
691 | return my_var_g(aTHX_ OP_PADSV, flags, padoff); |
692 | } |
693 | |
694 | static SV *mkbits1(pTHX_ size_t n) { |
695 | size_t bytes = n / 8, bits = n % 8; |
696 | SV *sv = newSV(bytes + !!bits); |
697 | char *p = SvPVX(sv), *q = p; |
698 | while (bytes--) { |
699 | *p++ = '\xff'; |
700 | } |
701 | if (bits) { |
702 | *p++ = (1u << bits) - 1; |
703 | } |
704 | *p = '\0'; |
705 | SvCUR_set(sv, p - q); |
706 | SvPOK_on(sv); |
707 | return sv; |
708 | } |
709 | |
710 | static OP *mkvecbits(pTHX_ PADOFFSET padoff, size_t i) { |
711 | OP *first, *mid, *last, *vec; |
712 | |
713 | last = newSVOP(OP_CONST, 0, newSViv(1)); |
714 | first = last; |
715 | |
716 | mid = newSVOP(OP_CONST, 0, newSViv(i)); |
717 | mid->op_sibling = first; |
718 | first = mid; |
719 | |
720 | mid = my_var(aTHX_ 0, padoff); |
721 | mid->op_sibling = first; |
722 | |
723 | first = newOP(OP_PUSHMARK, 0); |
724 | |
725 | vec = newLISTOP(OP_VEC, 0, first, mid); |
726 | vec->op_targ = pad_alloc(OP_VEC, SVs_PADTMP); |
727 | ((LISTOP *)vec)->op_last = last; |
728 | op_null(((LISTOP *)vec)->op_first); |
729 | |
730 | return vec; |
731 | } |
732 | |
733 | static OP *mkargselem(pTHX_ OP *index) { |
734 | OP *args = newAVREF(newGVOP(OP_GV, 0, PL_defgv)); |
735 | args->op_flags |= OPf_REF; |
736 | |
737 | return newBINOP(OP_AELEM, 0, args, index); |
738 | } |
739 | |
740 | static OP *mkargselemv(pTHX_ PADOFFSET v) { |
741 | return mkargselem(aTHX_ my_var(aTHX_ 0, v)); |
742 | } |
743 | |
63915d26 |
744 | static int parse_fun(pTHX_ OP **pop, const char *keyword_ptr, STRLEN keyword_len, const KWSpec *spec) { |
e158cf8f |
745 | ParamSpec *param_spec; |
c311cef3 |
746 | SV *declarator; |
747 | I32 floor_ix; |
63915d26 |
748 | int save_ix; |
c311cef3 |
749 | SV *saw_name; |
1e0f1595 |
750 | OP **prelude_sentinel; |
c311cef3 |
751 | SV *proto; |
752 | OP **attrs_sentinel, *body; |
753 | unsigned builtin_attrs; |
db81d362 |
754 | I32 c; |
755 | |
db81d362 |
756 | declarator = sv_2mortal(newSVpvn(keyword_ptr, keyword_len)); |
db81d362 |
757 | |
db81d362 |
758 | lex_read_space(0); |
759 | |
c311cef3 |
760 | builtin_attrs = 0; |
761 | |
db81d362 |
762 | /* function name */ |
c311cef3 |
763 | saw_name = NULL; |
31534187 |
764 | if ((spec->flags & FLAG_NAME_OK) && (saw_name = my_scan_word(aTHX_ TRUE))) { |
c311cef3 |
765 | |
766 | if (PL_parser->expect != XSTATE) { |
767 | /* bail out early so we don't predeclare $saw_name */ |
768 | croak("In %"SVf": I was expecting a function body, not \"%"SVf"\"", SVfARG(declarator), SVfARG(saw_name)); |
769 | } |
770 | |
db81d362 |
771 | sv_catpvs(declarator, " "); |
c311cef3 |
772 | sv_catsv(declarator, saw_name); |
773 | |
774 | if ( |
775 | sv_eq_pvs(saw_name, "BEGIN") || |
776 | sv_eq_pvs(saw_name, "END") || |
777 | sv_eq_pvs(saw_name, "INIT") || |
778 | sv_eq_pvs(saw_name, "CHECK") || |
779 | sv_eq_pvs(saw_name, "UNITCHECK") |
780 | ) { |
781 | builtin_attrs |= MY_ATTR_SPECIAL; |
782 | } |
783 | |
db81d362 |
784 | lex_read_space(0); |
63915d26 |
785 | } else if (!(spec->flags & FLAG_ANON_OK)) { |
31534187 |
786 | croak("I was expecting a function name, not \"%.*s\"", (int)(PL_parser->bufend - PL_parser->bufptr), PL_parser->bufptr); |
db81d362 |
787 | } else { |
788 | sv_catpvs(declarator, " (anon)"); |
789 | } |
790 | |
63915d26 |
791 | /* we're a subroutine declaration */ |
c311cef3 |
792 | floor_ix = start_subparse(FALSE, saw_name ? 0 : CVf_ANON); |
793 | SAVEFREESV(PL_compcv); |
794 | |
63915d26 |
795 | /* create outer block: '{' */ |
796 | save_ix = S_block_start(aTHX_ TRUE); |
797 | |
1e0f1595 |
798 | /* initialize synthetic optree */ |
799 | Newx(prelude_sentinel, 1, OP *); |
800 | *prelude_sentinel = NULL; |
801 | SAVEDESTRUCTOR_X(free_ptr_op, prelude_sentinel); |
802 | |
db81d362 |
803 | /* parameters */ |
e158cf8f |
804 | param_spec = NULL; |
63915d26 |
805 | |
db81d362 |
806 | c = lex_peek_unichar(0); |
807 | if (c == '(') { |
e158cf8f |
808 | OP **init_sentinel; |
809 | |
810 | Newx(init_sentinel, 1, OP *); |
811 | *init_sentinel = NULL; |
812 | SAVEDESTRUCTOR_X(free_ptr_op, init_sentinel); |
813 | |
814 | Newx(param_spec, 1, ParamSpec); |
815 | ps_init(param_spec); |
816 | SAVEDESTRUCTOR_X(ps_free_void, param_spec); |
db81d362 |
817 | |
818 | lex_read_unichar(0); |
819 | lex_read_space(0); |
820 | |
e158cf8f |
821 | while ((c = lex_peek_unichar(0)) != ')') { |
822 | int flags; |
823 | SV *name; |
824 | char sigil; |
825 | PADOFFSET padoff; |
c311cef3 |
826 | |
e158cf8f |
827 | padoff = parse_param(aTHX_ declarator, spec, param_spec, &flags, &name, init_sentinel); |
c311cef3 |
828 | |
e158cf8f |
829 | S_intro_my(aTHX); |
63915d26 |
830 | |
e158cf8f |
831 | sigil = SvPV_nolen(name)[0]; |
db81d362 |
832 | |
e158cf8f |
833 | /* internal consistency */ |
834 | if (flags & PARAM_NAMED) { |
835 | if (flags & PARAM_INVOCANT) { |
836 | croak("In %"SVf": invocant %"SVf" can't be a named parameter", SVfARG(declarator), SVfARG(name)); |
db81d362 |
837 | } |
e158cf8f |
838 | if (sigil != '$') { |
839 | croak("In %"SVf": named parameter %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash"); |
db81d362 |
840 | } |
e158cf8f |
841 | } else if (flags & PARAM_INVOCANT) { |
842 | if (*init_sentinel) { |
843 | croak("In %"SVf": invocant %"SVf" can't have a default value", SVfARG(declarator), SVfARG(name)); |
db81d362 |
844 | } |
e158cf8f |
845 | if (sigil != '$') { |
846 | croak("In %"SVf": invocant %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash"); |
847 | } |
848 | } else if (sigil != '$' && *init_sentinel) { |
849 | croak("In %"SVf": %s %"SVf" can't have a default value", SVfARG(declarator), sigil == '@' ? "array" : "hash", SVfARG(name)); |
850 | } |
db81d362 |
851 | |
e158cf8f |
852 | /* external constraints */ |
853 | if (param_spec->slurpy.name) { |
854 | croak("In %"SVf": I was expecting \")\" after \"%"SVf"\", not \"%"SVf"\"", SVfARG(declarator), SVfARG(param_spec->slurpy.name), SVfARG(name)); |
855 | } |
856 | if (sigil != '$') { |
857 | assert(!*init_sentinel); |
858 | param_spec->slurpy.name = name; |
859 | param_spec->slurpy.padoff = padoff; |
860 | continue; |
861 | } |
d8e5d540 |
862 | |
e158cf8f |
863 | if (!(flags & PARAM_NAMED) && count_named_params(param_spec)) { |
864 | 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)); |
865 | } |
d8e5d540 |
866 | |
e158cf8f |
867 | if (flags & PARAM_INVOCANT) { |
868 | if (param_spec->invocant.name) { |
869 | croak("In %"SVf": invalid double invocants %"SVf", %"SVf"", SVfARG(declarator), SVfARG(param_spec->invocant.name), SVfARG(name)); |
870 | } |
871 | if (count_positional_params(param_spec) || count_named_params(param_spec)) { |
872 | croak("In %"SVf": invocant %"SVf" must be first in parameter list", SVfARG(declarator), SVfARG(name)); |
63915d26 |
873 | } |
e158cf8f |
874 | if (!(spec->flags & FLAG_INVOCANT)) { |
875 | croak("In %"SVf": invocant %"SVf" not allowed here", SVfARG(declarator), SVfARG(name)); |
876 | } |
877 | param_spec->invocant.name = name; |
878 | param_spec->invocant.padoff = padoff; |
879 | continue; |
880 | } |
63915d26 |
881 | |
e158cf8f |
882 | if (*init_sentinel && !(spec->flags & FLAG_DEFAULT_ARGS)) { |
883 | croak("In %"SVf": default argument for %"SVf" not allowed here", SVfARG(declarator), SVfARG(name)); |
884 | } |
1e0f1595 |
885 | |
e158cf8f |
886 | if (ps_contains(aTHX_ param_spec, name)) { |
887 | croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(name)); |
888 | } |
1e0f1595 |
889 | |
e158cf8f |
890 | if (flags & PARAM_NAMED) { |
891 | if (!(spec->flags & FLAG_NAMED_PARAMS)) { |
892 | croak("In %"SVf": named parameter :%"SVf" not allowed here", SVfARG(declarator), SVfARG(name)); |
1e0f1595 |
893 | } |
894 | |
e158cf8f |
895 | if (*init_sentinel) { |
896 | ParamInit *pi = piv_extend(¶m_spec->named_optional); |
897 | pi->param.name = name; |
898 | pi->param.padoff = padoff; |
899 | pi->init = *init_sentinel; |
900 | *init_sentinel = NULL; |
901 | param_spec->named_optional.used++; |
902 | } else { |
903 | if (param_spec->positional_optional.used) { |
904 | 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)); |
905 | } |
d8e5d540 |
906 | |
e158cf8f |
907 | Param *p = pv_extend(¶m_spec->named_required); |
908 | p->name = name; |
909 | p->padoff = padoff; |
910 | param_spec->named_required.used++; |
911 | } |
912 | } else { |
913 | if (*init_sentinel || param_spec->positional_optional.used) { |
914 | ParamInit *pi = piv_extend(¶m_spec->positional_optional); |
915 | pi->param.name = name; |
916 | pi->param.padoff = padoff; |
917 | pi->init = *init_sentinel; |
918 | *init_sentinel = NULL; |
919 | param_spec->positional_optional.used++; |
920 | } else { |
921 | Param *p = pv_extend(¶m_spec->positional_required); |
922 | p->name = name; |
923 | p->padoff = padoff; |
924 | param_spec->positional_required.used++; |
db81d362 |
925 | } |
926 | } |
927 | |
e158cf8f |
928 | } |
929 | lex_read_unichar(0); |
930 | lex_read_space(0); |
931 | *init_sentinel = NULL; |
db81d362 |
932 | |
e158cf8f |
933 | if (!param_spec->invocant.name && SvTRUE(spec->shift)) { |
934 | if (ps_contains(aTHX_ param_spec, spec->shift)) { |
935 | croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(spec->shift)); |
db81d362 |
936 | } |
e158cf8f |
937 | |
938 | param_spec->invocant.name = spec->shift; |
939 | param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL); |
db81d362 |
940 | } |
941 | } |
942 | |
943 | /* prototype */ |
c311cef3 |
944 | proto = NULL; |
db81d362 |
945 | c = lex_peek_unichar(0); |
946 | if (c == ':') { |
947 | lex_read_unichar(0); |
948 | lex_read_space(0); |
949 | |
950 | c = lex_peek_unichar(0); |
951 | if (c != '(') { |
c311cef3 |
952 | lex_stuff_pvs(":", 0); |
953 | c = ':'; |
db81d362 |
954 | } else { |
31534187 |
955 | lex_read_unichar(0); |
956 | if (!(proto = my_scan_parens_tail(aTHX_ FALSE))) { |
f34187b8 |
957 | croak("In %"SVf": prototype not terminated", SVfARG(declarator)); |
db81d362 |
958 | } |
31534187 |
959 | my_check_prototype(aTHX_ declarator, proto); |
db81d362 |
960 | lex_read_space(0); |
c311cef3 |
961 | c = lex_peek_unichar(0); |
db81d362 |
962 | } |
963 | } |
964 | |
db81d362 |
965 | /* attributes */ |
c311cef3 |
966 | Newx(attrs_sentinel, 1, OP *); |
967 | *attrs_sentinel = NULL; |
311ced6f |
968 | SAVEDESTRUCTOR_X(free_ptr_op, attrs_sentinel); |
c311cef3 |
969 | |
63915d26 |
970 | if (c == ':' || c == '{') /* '}' - hi, vim */ { |
c311cef3 |
971 | |
972 | /* kludge default attributes in */ |
973 | if (SvTRUE(spec->attrs) && SvPV_nolen(spec->attrs)[0] == ':') { |
974 | lex_stuff_sv(spec->attrs, 0); |
975 | c = ':'; |
976 | } |
b72eb6ee |
977 | |
db81d362 |
978 | if (c == ':') { |
db81d362 |
979 | lex_read_unichar(0); |
980 | lex_read_space(0); |
db81d362 |
981 | c = lex_peek_unichar(0); |
c311cef3 |
982 | |
983 | for (;;) { |
984 | SV *attr; |
985 | |
31534187 |
986 | if (!(attr = my_scan_word(aTHX_ FALSE))) { |
c311cef3 |
987 | break; |
db81d362 |
988 | } |
c311cef3 |
989 | |
db81d362 |
990 | lex_read_space(0); |
991 | c = lex_peek_unichar(0); |
c311cef3 |
992 | |
993 | if (c != '(') { |
994 | if (sv_eq_pvs(attr, "lvalue")) { |
995 | builtin_attrs |= MY_ATTR_LVALUE; |
996 | attr = NULL; |
997 | } else if (sv_eq_pvs(attr, "method")) { |
998 | builtin_attrs |= MY_ATTR_METHOD; |
999 | attr = NULL; |
1000 | } |
1001 | } else { |
31534187 |
1002 | SV *sv; |
1003 | lex_read_unichar(0); |
1004 | if (!(sv = my_scan_parens_tail(aTHX_ TRUE))) { |
c311cef3 |
1005 | croak("In %"SVf": unterminated attribute parameter in attribute list", SVfARG(declarator)); |
1006 | } |
31534187 |
1007 | sv_catpvs(attr, "("); |
c311cef3 |
1008 | sv_catsv(attr, sv); |
31534187 |
1009 | sv_catpvs(attr, ")"); |
c311cef3 |
1010 | |
1011 | lex_read_space(0); |
1012 | c = lex_peek_unichar(0); |
1013 | } |
1014 | |
1015 | if (attr) { |
1016 | *attrs_sentinel = op_append_elem(OP_LIST, *attrs_sentinel, newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(attr))); |
1017 | } |
1018 | |
1019 | if (c == ':') { |
1020 | lex_read_unichar(0); |
1021 | lex_read_space(0); |
1022 | c = lex_peek_unichar(0); |
1023 | } |
db81d362 |
1024 | } |
1025 | } |
1026 | } |
1027 | |
1028 | /* body */ |
63915d26 |
1029 | if (c != '{') /* '}' - hi, vim */ { |
85bc3fbd |
1030 | croak("In %"SVf": I was expecting a function body, not \"%c\"", SVfARG(declarator), (int)c); |
db81d362 |
1031 | } |
c311cef3 |
1032 | |
63915d26 |
1033 | /* surprise predeclaration! */ |
1034 | if (saw_name) { |
1035 | /* 'sub NAME (PROTO);' to make name/proto known to perl before it |
1036 | starts parsing the body */ |
1037 | const I32 sub_ix = start_subparse(FALSE, 0); |
1038 | SAVEFREESV(PL_compcv); |
1039 | |
1040 | SvREFCNT_inc_simple_void(PL_compcv); |
1041 | |
1042 | newATTRSUB( |
1043 | sub_ix, |
1044 | newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(saw_name)), |
1045 | proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL, |
1046 | NULL, |
1047 | NULL |
1048 | ); |
1049 | } |
1050 | |
c311cef3 |
1051 | if (builtin_attrs & MY_ATTR_LVALUE) { |
1052 | CvLVALUE_on(PL_compcv); |
db81d362 |
1053 | } |
c311cef3 |
1054 | if (builtin_attrs & MY_ATTR_METHOD) { |
1055 | CvMETHOD_on(PL_compcv); |
1056 | } |
1057 | if (builtin_attrs & MY_ATTR_SPECIAL) { |
1058 | CvSPECIAL_on(PL_compcv); |
db81d362 |
1059 | } |
1060 | |
e158cf8f |
1061 | /* check number of arguments */ |
1062 | if (spec->flags & FLAG_CHECK_NARGS) { |
1063 | int amin, amax; |
1064 | size_t named; |
d8e5d540 |
1065 | |
e158cf8f |
1066 | amin = args_min(aTHX_ param_spec, spec); |
1067 | if (amin > 0) { |
1068 | OP *chk, *cond, *err, *croak; |
d8e5d540 |
1069 | |
e158cf8f |
1070 | err = newSVOP(OP_CONST, 0, |
1071 | newSVpvf("Not enough arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amin)); |
1072 | err = newBINOP(OP_CONCAT, 0, |
1073 | err, |
1074 | newAVREF(newGVOP(OP_GV, 0, PL_defgv))); |
1075 | err = newBINOP(OP_CONCAT, 0, |
1076 | err, |
1077 | newSVOP(OP_CONST, 0, newSVpvs(")"))); |
d8e5d540 |
1078 | |
e158cf8f |
1079 | croak = newCVREF(OPf_WANT_SCALAR, |
1080 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))); |
1081 | err = newUNOP(OP_ENTERSUB, OPf_STACKED, |
1082 | op_append_elem(OP_LIST, err, croak)); |
d8e5d540 |
1083 | |
e158cf8f |
1084 | cond = newBINOP(OP_LT, 0, |
1085 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1086 | newSVOP(OP_CONST, 0, newSViv(amin))); |
1087 | chk = newLOGOP(OP_AND, 0, cond, err); |
1088 | |
1089 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk)); |
1e0f1595 |
1090 | } |
abccbe86 |
1091 | |
e158cf8f |
1092 | amax = args_max(param_spec); |
1093 | if (amax >= 0) { |
1e0f1595 |
1094 | OP *chk, *cond, *err, *croak; |
63915d26 |
1095 | |
1e0f1595 |
1096 | err = newSVOP(OP_CONST, 0, |
e158cf8f |
1097 | newSVpvf("Too many arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amax)); |
1098 | err = newBINOP(OP_CONCAT, 0, |
1099 | err, |
1100 | newAVREF(newGVOP(OP_GV, 0, PL_defgv))); |
1101 | err = newBINOP(OP_CONCAT, 0, |
1102 | err, |
1103 | newSVOP(OP_CONST, 0, newSVpvs(")"))); |
63915d26 |
1104 | |
1e0f1595 |
1105 | croak = newCVREF(OPf_WANT_SCALAR, |
e158cf8f |
1106 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))); |
1e0f1595 |
1107 | err = newUNOP(OP_ENTERSUB, OPf_STACKED, |
e158cf8f |
1108 | op_append_elem(OP_LIST, err, croak)); |
63915d26 |
1109 | |
e158cf8f |
1110 | cond = newBINOP(OP_GT, 0, |
1111 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1112 | newSVOP(OP_CONST, 0, newSViv(amax))); |
1e0f1595 |
1113 | chk = newLOGOP(OP_AND, 0, cond, err); |
63915d26 |
1114 | |
1e0f1595 |
1115 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk)); |
1116 | } |
e158cf8f |
1117 | |
1118 | if (param_spec && (count_named_params(param_spec) || (param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%'))) { |
1e0f1595 |
1119 | OP *chk, *cond, *err, *croak; |
e158cf8f |
1120 | const UV fixed = count_positional_params(param_spec) + !!param_spec->invocant.name; |
63915d26 |
1121 | |
1e0f1595 |
1122 | err = newSVOP(OP_CONST, 0, |
e158cf8f |
1123 | newSVpvf("Odd number of paired arguments for %"SVf"", SVfARG(declarator))); |
63915d26 |
1124 | |
1e0f1595 |
1125 | croak = newCVREF(OPf_WANT_SCALAR, |
e158cf8f |
1126 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))); |
1e0f1595 |
1127 | err = newUNOP(OP_ENTERSUB, OPf_STACKED, |
e158cf8f |
1128 | op_append_elem(OP_LIST, err, croak)); |
63915d26 |
1129 | |
1e0f1595 |
1130 | cond = newBINOP(OP_GT, 0, |
e158cf8f |
1131 | fixed |
1132 | ? newBINOP(OP_SUBTRACT, 0, |
1133 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1134 | newSVOP(OP_CONST, 0, newSVuv(fixed))) |
1135 | : newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1136 | newSVOP(OP_CONST, 0, newSViv(0))); |
1137 | cond = newLOGOP(OP_AND, 0, |
1138 | cond, |
1139 | newBINOP(OP_MODULO, 0, |
1140 | fixed |
1141 | ? newBINOP(OP_SUBTRACT, 0, |
1142 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1143 | newSVOP(OP_CONST, 0, newSVuv(fixed))) |
1144 | : newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1145 | newSVOP(OP_CONST, 0, newSViv(2)))); |
1e0f1595 |
1146 | chk = newLOGOP(OP_AND, 0, cond, err); |
63915d26 |
1147 | |
1e0f1595 |
1148 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk)); |
c311cef3 |
1149 | } |
1e0f1595 |
1150 | } |
c311cef3 |
1151 | |
e158cf8f |
1152 | if (!param_spec) { |
1153 | /* my $invocant = shift; */ |
1154 | if (SvTRUE(spec->shift)) { |
1155 | OP *var; |
abccbe86 |
1156 | |
e158cf8f |
1157 | var = my_var( |
1158 | aTHX_ |
1159 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1160 | pad_add_name_sv(spec->shift, 0, NULL, NULL) |
1161 | ); |
1162 | var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0)); |
c311cef3 |
1163 | |
e158cf8f |
1164 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1165 | } |
1166 | } else { |
1167 | /* my $invocant = shift; */ |
1168 | if (param_spec->invocant.name) { |
1169 | OP *var; |
c311cef3 |
1170 | |
e158cf8f |
1171 | var = my_var( |
1172 | aTHX_ |
1173 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1174 | param_spec->invocant.padoff |
1175 | ); |
1176 | var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0)); |
1e0f1595 |
1177 | |
e158cf8f |
1178 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
c311cef3 |
1179 | } |
1180 | |
e158cf8f |
1181 | /* my (...) = @_; */ |
1182 | { |
1183 | OP *lhs; |
1184 | size_t i, lim; |
63915d26 |
1185 | |
e158cf8f |
1186 | lhs = NULL; |
63915d26 |
1187 | |
e158cf8f |
1188 | for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) { |
1189 | OP *const var = my_var( |
1190 | aTHX_ |
1191 | OPf_WANT_LIST | (OPpLVAL_INTRO << 8), |
1192 | param_spec->positional_required.data[i].padoff |
1193 | ); |
1194 | lhs = op_append_elem(OP_LIST, lhs, var); |
1195 | } |
63915d26 |
1196 | |
e158cf8f |
1197 | for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) { |
1198 | OP *const var = my_var( |
1199 | aTHX_ |
1200 | OPf_WANT_LIST | (OPpLVAL_INTRO << 8), |
1201 | param_spec->positional_optional.data[i].param.padoff |
1202 | ); |
1203 | lhs = op_append_elem(OP_LIST, lhs, var); |
1204 | } |
63915d26 |
1205 | |
e158cf8f |
1206 | if (param_spec->slurpy.name) { |
1207 | if (count_named_params(param_spec)) { |
1208 | OP *const var = my_var_g( |
1209 | aTHX_ |
1210 | SvPV_nolen(param_spec->slurpy.name)[0] == '@' ? OP_PADAV : OP_PADHV, |
1211 | OPf_MOD | (OPpLVAL_INTRO << 8), |
1212 | param_spec->slurpy.padoff |
1213 | ); |
1214 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var)); |
1215 | } else { |
1216 | OP *const var = my_var_g( |
1217 | aTHX_ |
1218 | SvPV_nolen(param_spec->slurpy.name)[0] == '@' ? OP_PADAV : OP_PADHV, |
1219 | OPf_WANT_LIST | (OPpLVAL_INTRO << 8), |
1220 | param_spec->slurpy.padoff |
1221 | ); |
1222 | lhs = op_append_elem(OP_LIST, lhs, var); |
1223 | } |
1224 | } |
63915d26 |
1225 | |
e158cf8f |
1226 | if (lhs) { |
1227 | OP *rhs; |
1228 | lhs->op_flags |= OPf_PARENS; |
1229 | rhs = newAVREF(newGVOP(OP_GV, 0, PL_defgv)); |
1230 | |
1231 | *prelude_sentinel = op_append_list( |
1232 | OP_LINESEQ, *prelude_sentinel, |
1233 | newSTATEOP( |
1234 | 0, NULL, |
1235 | newASSIGNOP(OPf_STACKED, lhs, 0, rhs) |
1236 | ) |
1237 | ); |
1238 | } |
1239 | } |
63915d26 |
1240 | |
e158cf8f |
1241 | /* default arguments */ |
1242 | { |
1243 | size_t i, lim, req; |
1244 | OP *nest; |
63915d26 |
1245 | |
e158cf8f |
1246 | nest = NULL; |
63915d26 |
1247 | |
e158cf8f |
1248 | req = param_spec->positional_required.used; |
1249 | for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) { |
1250 | ParamInit *cur = ¶m_spec->positional_optional.data[i]; |
1251 | OP *var, *cond; |
63915d26 |
1252 | |
e158cf8f |
1253 | cond = newBINOP( |
1254 | OP_LT, 0, |
1255 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)), |
1256 | newSVOP(OP_CONST, 0, newSViv(req + i + 1)) |
1257 | ); |
1e0f1595 |
1258 | |
e158cf8f |
1259 | var = my_var(aTHX_ 0, cur->param.padoff); |
1260 | |
1261 | nest = op_append_list( |
1262 | OP_LINESEQ, nest, |
1263 | newASSIGNOP(OPf_STACKED, var, 0, cur->init) |
1264 | ); |
1265 | cur->init = NULL; |
1266 | nest = newCONDOP( |
1267 | 0, |
1268 | cond, |
1269 | nest, |
1270 | NULL |
1271 | ); |
1272 | } |
1273 | |
1274 | *prelude_sentinel = op_append_list( |
1275 | OP_LINESEQ, *prelude_sentinel, |
1276 | nest |
1277 | ); |
c311cef3 |
1278 | } |
1279 | |
e158cf8f |
1280 | /* named parameters */ |
1281 | if (count_named_params(param_spec)) { |
1282 | int nameblock_ix; |
1283 | OP *nameblock; |
1284 | PADOFFSET vb, vc, vi, vk; |
0f875412 |
1285 | int vb_is_str, vc_is_str; |
e158cf8f |
1286 | const size_t pos = count_positional_params(param_spec); |
1287 | |
1288 | nameblock = NULL; |
1289 | nameblock_ix = S_block_start(aTHX_ TRUE); |
1290 | |
1291 | { |
1292 | OP *decl, *var; |
1293 | |
1294 | decl = NULL; |
1295 | |
0f875412 |
1296 | vb_is_str = param_spec->named_required.used > UV_BITS; |
e158cf8f |
1297 | if (!param_spec->named_required.used || !(spec->flags & FLAG_CHECK_NARGS)) { |
1298 | vb = 0; |
1299 | } else { |
1300 | var = newOP(OP_PADSV, OPf_MOD | (OPpLVAL_INTRO << 8)); |
1301 | var->op_targ = vb = pad_add_name_pvs("$__B", 0, NULL, NULL); |
0f875412 |
1302 | var = newASSIGNOP(OPf_STACKED, var, 0, newSVOP(OP_CONST, 0, vb_is_str ? newSVpvs("") : newSVuv(0))); |
e158cf8f |
1303 | decl = op_append_list(OP_LINESEQ, decl, newSTATEOP(0, NULL, var)); |
1304 | } |
1305 | |
0f875412 |
1306 | vc_is_str = param_spec->named_optional.used > UV_BITS; |
e158cf8f |
1307 | if (!param_spec->named_optional.used) { |
1308 | vc = 0; |
1309 | } else { |
1310 | var = newOP(OP_PADSV, OPf_MOD | (OPpLVAL_INTRO << 8)); |
1311 | var->op_targ = vc = pad_add_name_pvs("$__C", 0, NULL, NULL); |
0f875412 |
1312 | var = newASSIGNOP(OPf_STACKED, var, 0, newSVOP(OP_CONST, 0, vc_is_str ? newSVpvs("") : newSVuv(0))); |
e158cf8f |
1313 | decl = op_append_list(OP_LINESEQ, decl, newSTATEOP(0, NULL, var)); |
1314 | } |
1315 | |
1316 | var = newOP(OP_PADSV, OPf_MOD | (OPpLVAL_INTRO << 8)); |
1317 | var->op_targ = vk = pad_add_name_pvs("$__K", 0, NULL, NULL); |
1318 | decl = op_append_list(OP_LINESEQ, decl, newSTATEOP(0, NULL, var)); |
1319 | |
1320 | var = newOP(OP_PADSV, OPf_MOD | (OPpLVAL_INTRO << 8)); |
1321 | var->op_targ = vi = pad_add_name_pvs("$__I", 0, NULL, NULL); |
1322 | var = newASSIGNOP(OPf_STACKED, var, 0, newSVOP(OP_CONST, 0, newSViv(pos))); |
1323 | decl = op_append_list(OP_LINESEQ, decl, newSTATEOP(0, NULL, var)); |
1324 | |
1325 | //S_intro_my(aTHX); |
1326 | nameblock = op_append_list(OP_LINESEQ, nameblock, decl); |
1327 | } |
1328 | |
1329 | { |
1330 | OP *loop; |
1331 | |
1332 | loop = NULL; |
1333 | |
1334 | loop = op_append_list( |
1335 | OP_LINESEQ, |
1336 | loop, |
1337 | newSTATEOP( |
1338 | 0, NULL, |
1339 | newASSIGNOP( |
1340 | OPf_STACKED, |
1341 | my_var(aTHX_ 0, vk), |
1342 | 0, |
1343 | mkargselemv(aTHX_ vi) |
1344 | ) |
1345 | ) |
1346 | ); |
1347 | |
1348 | { |
1349 | OP *nest; |
1350 | size_t i; |
1351 | |
1352 | if (param_spec->slurpy.name) { |
1353 | if (SvPV_nolen(param_spec->slurpy.name)[0] == '@') { |
1354 | OP *first, *mid, *last; |
1355 | |
1356 | last = mkargselem( |
1357 | aTHX_ |
1358 | newBINOP( |
1359 | OP_ADD, 0, |
1360 | my_var(aTHX_ 0, vi), |
1361 | newSVOP(OP_CONST, 0, newSViv(1)) |
1362 | ) |
1363 | ); |
1364 | mid = last; |
1365 | |
1366 | first = my_var(aTHX_ 0, vk); |
1367 | first->op_sibling = mid; |
1368 | mid = first; |
1369 | |
1370 | first = my_var_g(aTHX_ OP_PADAV, 0, param_spec->slurpy.padoff); |
1371 | first->op_sibling = mid; |
1372 | mid = first; |
1373 | |
1374 | first = newOP(OP_PUSHMARK, 0); |
1375 | nest = newLISTOP(OP_PUSH, 0, first, mid); |
1376 | nest->op_targ = pad_alloc(OP_PUSH, SVs_PADTMP); |
1377 | ((LISTOP *)nest)->op_last = last; |
1378 | } else { |
1379 | nest = newASSIGNOP( |
1380 | OPf_STACKED, |
1381 | newBINOP( |
1382 | OP_HELEM, 0, |
1383 | my_var_g(aTHX_ OP_PADHV, 0, param_spec->slurpy.padoff), |
1384 | my_var(aTHX_ 0, vk) |
1385 | ), |
1386 | 0, |
1387 | mkargselem( |
1388 | aTHX_ |
1389 | newBINOP( |
1390 | OP_ADD, 0, |
1391 | my_var(aTHX_ 0, vi), |
1392 | newSVOP(OP_CONST, 0, newSViv(1)) |
1393 | ) |
1394 | ) |
1395 | ); |
1396 | } |
1397 | } else if (spec->flags & FLAG_CHECK_NARGS) { |
1398 | OP *err, *croak; |
1399 | |
1400 | err = newSVOP(OP_CONST, 0, |
0f875412 |
1401 | newSVpvf("In %"SVf": no such named parameter: ", SVfARG(declarator))); |
e158cf8f |
1402 | err = newBINOP( |
1403 | OP_CONCAT, 0, |
1404 | err, |
1405 | my_var(aTHX_ 0, vk) |
1406 | ); |
1407 | |
1408 | croak = newCVREF(OPf_WANT_SCALAR, |
1409 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))); |
1410 | nest = newUNOP(OP_ENTERSUB, OPf_STACKED, |
1411 | op_append_elem(OP_LIST, err, croak)); |
1412 | } else { |
1413 | nest = NULL; |
1414 | } |
1415 | |
1416 | for (i = param_spec->named_optional.used; i--; ) { |
1417 | Param *cur = ¶m_spec->named_optional.data[i].param; |
1418 | size_t dn; |
1419 | char *dp = SvPV(cur->name, dn); |
1420 | OP *vec; |
1421 | |
1422 | if (!(spec->flags & FLAG_CHECK_NARGS)) { |
1423 | vec = NULL; |
0f875412 |
1424 | } else if (vc_is_str) { |
e158cf8f |
1425 | vec = newASSIGNOP( |
1426 | OPf_STACKED, |
1427 | mkvecbits(aTHX_ vc, i), |
1428 | 0, |
1429 | newSVOP(OP_CONST, 0, newSViv(1)) |
1430 | ); |
0f875412 |
1431 | } else { |
1432 | vec = newASSIGNOP( |
1433 | OPf_STACKED, |
f0c98476 |
1434 | my_var(aTHX_ 0, vc), |
0f875412 |
1435 | OP_BIT_OR, |
1436 | newSVOP(OP_CONST, 0, newSVuv((UV)1 << i)) |
1437 | ); |
e158cf8f |
1438 | } |
1439 | |
1440 | nest = newCONDOP( |
1441 | 0, |
1442 | newBINOP( |
1443 | OP_SEQ, 0, |
1444 | my_var(aTHX_ 0, vk), |
1445 | newSVOP(OP_CONST, 0, newSVpvn_utf8(dp + 1, dn - 1, SvUTF8(cur->name))) |
1446 | ), |
1447 | op_append_list( |
1448 | OP_LINESEQ, |
1449 | newASSIGNOP( |
1450 | OPf_STACKED, |
1451 | my_var(aTHX_ 0, cur->padoff), |
1452 | 0, |
1453 | mkargselem( |
1454 | aTHX_ |
1455 | newBINOP( |
1456 | OP_ADD, 0, |
1457 | my_var(aTHX_ 0, vi), |
1458 | newSVOP(OP_CONST, 0, newSViv(1)) |
1459 | ) |
1460 | ) |
1461 | ), |
1462 | vec |
1463 | ), |
1464 | nest |
1465 | ); |
1466 | } |
1467 | |
1468 | for (i = param_spec->named_required.used; i--; ) { |
1469 | Param *cur = ¶m_spec->named_required.data[i]; |
1470 | size_t dn; |
1471 | char *dp = SvPV(cur->name, dn); |
1472 | OP *vec; |
1473 | |
1474 | if (!(spec->flags & FLAG_CHECK_NARGS)) { |
1475 | vec = NULL; |
0f875412 |
1476 | } else if (vb_is_str) { |
e158cf8f |
1477 | vec = newASSIGNOP( |
1478 | OPf_STACKED, |
1479 | mkvecbits(aTHX_ vb, i), |
1480 | 0, |
1481 | newSVOP(OP_CONST, 0, newSViv(1)) |
1482 | ); |
0f875412 |
1483 | } else { |
1484 | vec = newASSIGNOP( |
1485 | OPf_STACKED, |
f0c98476 |
1486 | my_var(aTHX_ 0, vb), |
0f875412 |
1487 | OP_BIT_OR, |
1488 | newSVOP(OP_CONST, 0, newSVuv((UV)1 << i)) |
1489 | ); |
e158cf8f |
1490 | } |
1491 | |
1492 | nest = newCONDOP( |
1493 | 0, |
1494 | newBINOP( |
1495 | OP_SEQ, 0, |
1496 | my_var(aTHX_ 0, vk), |
1497 | newSVOP(OP_CONST, 0, newSVpvn_utf8(dp + 1, dn - 1, SvUTF8(cur->name))) |
1498 | ), |
1499 | op_append_list( |
1500 | OP_LINESEQ, |
1501 | newASSIGNOP( |
1502 | OPf_STACKED, |
1503 | my_var(aTHX_ 0, cur->padoff), |
1504 | 0, |
1505 | mkargselem( |
1506 | aTHX_ |
1507 | newBINOP( |
1508 | OP_ADD, 0, |
1509 | my_var(aTHX_ 0, vi), |
1510 | newSVOP(OP_CONST, 0, newSViv(1)) |
1511 | ) |
1512 | ) |
1513 | ), |
1514 | vec |
1515 | ), |
1516 | nest |
1517 | ); |
1518 | } |
1519 | |
1520 | loop = op_append_elem(OP_LINESEQ, loop, newSTATEOP(0, NULL, nest)); |
1521 | } |
1522 | |
1523 | loop = newWHILEOP( |
1524 | 0, 1, |
1525 | NULL, |
1526 | newBINOP( |
1527 | OP_LT, 0, |
1528 | my_var(aTHX_ 0, vi), |
1529 | newAVREF(newGVOP(OP_GV, 0, PL_defgv)) |
1530 | ), |
1531 | loop, |
1532 | newASSIGNOP( |
1533 | OPf_STACKED, |
1534 | my_var(aTHX_ 0, vi), |
1535 | OP_ADD, |
1536 | newSVOP(OP_CONST, 0, newSViv(2)) |
1537 | ), |
1538 | 0 |
1539 | ); |
1540 | |
1541 | nameblock = op_append_list(OP_LINESEQ, nameblock, newSTATEOP(0, NULL, loop)); |
1542 | } |
1543 | |
1544 | if (param_spec->named_required.used && (spec->flags & FLAG_CHECK_NARGS)) { |
1545 | OP *cond, *err, *croak, *join; |
1546 | |
1547 | { |
1548 | size_t i, lim; |
1549 | OP *first, *mid, *last; |
1550 | |
1551 | last = newNULLLIST(); |
1552 | mid = last; |
1553 | |
1554 | for (i = param_spec->named_required.used; i--; ) { |
1555 | OP *cur; |
1556 | SV *sv = param_spec->named_required.data[i].name; |
1557 | size_t n; |
1558 | char *p = SvPV(sv, n); |
1559 | cur = newCONDOP( |
1560 | 0, |
0f875412 |
1561 | vb_is_str |
1562 | ? mkvecbits(aTHX_ vb, i) |
f0c98476 |
1563 | : newBINOP(OP_BIT_AND, 0, my_var(aTHX_ 0, vb), newSVOP(OP_CONST, 0, newSVuv((UV)1 << i))) |
0f875412 |
1564 | , |
e158cf8f |
1565 | newNULLLIST(), |
1566 | newSVOP(OP_CONST, 0, newSVpvn_utf8(p + 1, n - 1, SvUTF8(sv))) |
1567 | ); |
1568 | cur->op_sibling = mid; |
1569 | mid = cur; |
1570 | } |
1571 | |
1572 | first = newSVOP(OP_CONST, 0, newSVpvs(", ")); |
1573 | first->op_sibling = mid; |
1574 | mid = first; |
1575 | |
1576 | first = newOP(OP_PUSHMARK, 0); |
1577 | |
1578 | join = newLISTOP(OP_JOIN, 0, first, mid); |
1579 | join->op_targ = pad_alloc(OP_JOIN, SVs_PADTMP); |
1580 | ((LISTOP *)join)->op_last = last; |
1581 | } |
1582 | |
1583 | err = newSVOP( |
1584 | OP_CONST, 0, |
0f875412 |
1585 | newSVpvf("In %"SVf": missing named parameter(s): ", SVfARG(declarator)) |
e158cf8f |
1586 | ); |
1587 | err = newBINOP(OP_CONCAT, 0, err, join); |
1588 | croak = newCVREF( |
1589 | OPf_WANT_SCALAR, |
1590 | newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)) |
1591 | ); |
1592 | err = newUNOP( |
1593 | OP_ENTERSUB, |
1594 | OPf_STACKED, |
1595 | op_append_elem(OP_LIST, err, croak) |
1596 | ); |
0f875412 |
1597 | if (vb_is_str) { |
1598 | cond = newBINOP( |
1599 | OP_SNE, 0, |
1600 | my_var(aTHX_ 0, vb), |
1601 | newSVOP(OP_CONST, 0, mkbits1(aTHX_ param_spec->named_required.used)) |
1602 | ); |
1603 | } else { |
1604 | cond = newBINOP( |
1605 | OP_NE, 0, |
1606 | my_var(aTHX_ 0, vb), |
1607 | newSVOP( |
1608 | OP_CONST, 0, |
1609 | newSVuv( |
1610 | param_spec->named_required.used == UV_BITS |
1611 | ? ~(UV)0 |
1612 | : ((UV)1 << param_spec->named_required.used) - 1 |
1613 | ) |
1614 | ) |
1615 | ); |
1616 | } |
e158cf8f |
1617 | err = newCONDOP( |
1618 | 0, |
1619 | cond, |
1620 | err, |
1621 | NULL |
1622 | ); |
1623 | |
1624 | nameblock = op_append_list(OP_LINESEQ, nameblock, err); |
1625 | } |
1626 | |
1627 | if (param_spec->named_optional.used) { |
1628 | size_t i, lim; |
1629 | |
1630 | for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) { |
1631 | ParamInit *const cur = ¶m_spec->named_optional.data[i]; |
1632 | OP *init, *cond; |
1633 | |
1634 | init = newASSIGNOP( |
1635 | OPf_STACKED, |
1636 | my_var(aTHX_ 0, cur->param.padoff), |
1637 | 0, |
1638 | cur->init |
1639 | ); |
1640 | cur->init = NULL; |
1641 | |
0f875412 |
1642 | cond = newUNOP( |
1643 | OP_NOT, OPf_SPECIAL, |
1644 | vc_is_str |
1645 | ? mkvecbits(aTHX_ vc, i) |
f0c98476 |
1646 | : newBINOP(OP_BIT_AND, 0, my_var(aTHX_ 0, vc), newSVOP(OP_CONST, 0, newSVuv((UV)1 << i))) |
0f875412 |
1647 | ); |
e158cf8f |
1648 | |
1649 | init = newCONDOP(0, cond, init, NULL); |
1650 | |
1651 | nameblock = op_append_list(OP_LINESEQ, nameblock, newSTATEOP(0, NULL, init)); |
1652 | } |
1653 | } |
1654 | |
1655 | nameblock = S_block_end(aTHX_ nameblock_ix, nameblock); |
1656 | nameblock = op_scope(nameblock); |
1657 | |
1658 | *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, nameblock); |
1659 | } |
1e0f1595 |
1660 | } |
c311cef3 |
1661 | |
1e0f1595 |
1662 | /* finally let perl parse the actual subroutine body */ |
1663 | body = parse_block(0); |
c311cef3 |
1664 | |
1e0f1595 |
1665 | /* add '();' to make function return nothing by default */ |
1666 | /* (otherwise the invisible parameter initialization can "leak" into |
1667 | the return value: fun ($x) {}->("asdf", 0) == 2) */ |
1668 | if (*prelude_sentinel) { |
1669 | body = newSTATEOP(0, NULL, body); |
db81d362 |
1670 | } |
1671 | |
1e0f1595 |
1672 | body = op_append_list(OP_LINESEQ, *prelude_sentinel, body); |
1673 | *prelude_sentinel = NULL; |
1674 | |
c311cef3 |
1675 | /* it's go time. */ |
1676 | { |
1677 | OP *const attrs = *attrs_sentinel; |
1678 | *attrs_sentinel = NULL; |
1679 | SvREFCNT_inc_simple_void(PL_compcv); |
1680 | |
63915d26 |
1681 | /* close outer block: '}' */ |
1682 | S_block_end(aTHX_ save_ix, body); |
1683 | |
c311cef3 |
1684 | if (!saw_name) { |
1685 | *pop = newANONATTRSUB( |
1686 | floor_ix, |
1687 | proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL, |
1688 | attrs, |
1689 | body |
1690 | ); |
1691 | return KEYWORD_PLUGIN_EXPR; |
1692 | } |
1693 | |
1694 | newATTRSUB( |
1695 | floor_ix, |
1696 | newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(saw_name)), |
1697 | proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL, |
1698 | attrs, |
1699 | body |
1700 | ); |
5efe0e0e |
1701 | *pop = newOP(OP_NULL, 0); |
c311cef3 |
1702 | return KEYWORD_PLUGIN_STMT; |
db81d362 |
1703 | } |
db81d362 |
1704 | } |
1705 | |
1706 | static int my_keyword_plugin(pTHX_ char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) { |
63915d26 |
1707 | KWSpec spec; |
db81d362 |
1708 | int ret; |
1709 | |
1710 | SAVETMPS; |
1711 | |
7dd35535 |
1712 | if (kw_flags(aTHX_ keyword_ptr, keyword_len, &spec)) { |
1713 | ret = parse_fun(aTHX_ op_ptr, keyword_ptr, keyword_len, &spec); |
db81d362 |
1714 | } else { |
7dd35535 |
1715 | ret = next_keyword_plugin(aTHX_ keyword_ptr, keyword_len, op_ptr); |
db81d362 |
1716 | } |
1717 | |
1718 | FREETMPS; |
1719 | |
1720 | return ret; |
1721 | } |
1722 | |
1723 | WARNINGS_RESET |
1724 | |
1725 | MODULE = Function::Parameters PACKAGE = Function::Parameters |
1726 | PROTOTYPES: ENABLE |
1727 | |
1728 | BOOT: |
1729 | WARNINGS_ENABLE { |
1730 | HV *const stash = gv_stashpvs(MY_PKG, GV_ADD); |
426a4d69 |
1731 | /**/ |
d8e5d540 |
1732 | newCONSTSUB(stash, "FLAG_NAME_OK", newSViv(FLAG_NAME_OK)); |
1733 | newCONSTSUB(stash, "FLAG_ANON_OK", newSViv(FLAG_ANON_OK)); |
63915d26 |
1734 | newCONSTSUB(stash, "FLAG_DEFAULT_ARGS", newSViv(FLAG_DEFAULT_ARGS)); |
d8e5d540 |
1735 | newCONSTSUB(stash, "FLAG_CHECK_NARGS", newSViv(FLAG_CHECK_NARGS)); |
1736 | newCONSTSUB(stash, "FLAG_INVOCANT", newSViv(FLAG_INVOCANT)); |
e158cf8f |
1737 | newCONSTSUB(stash, "FLAG_NAMED_PARAMS", newSViv(FLAG_NAMED_PARAMS)); |
db81d362 |
1738 | newCONSTSUB(stash, "HINTK_KEYWORDS", newSVpvs(HINTK_KEYWORDS)); |
d8e5d540 |
1739 | newCONSTSUB(stash, "HINTK_FLAGS_", newSVpvs(HINTK_FLAGS_)); |
1740 | newCONSTSUB(stash, "HINTK_SHIFT_", newSVpvs(HINTK_SHIFT_)); |
1741 | newCONSTSUB(stash, "HINTK_ATTRS_", newSVpvs(HINTK_ATTRS_)); |
426a4d69 |
1742 | /**/ |
db81d362 |
1743 | next_keyword_plugin = PL_keyword_plugin; |
1744 | PL_keyword_plugin = my_keyword_plugin; |
1745 | } WARNINGS_RESET |