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