2 Copyright 2012 Lukas Mai.
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.
8 See http://dev.perl.org/licenses/ for more information.
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)
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) \
29 /* WARNINGS_ENABLEW(-Wshadow) :-( */ \
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)
40 #define WARNINGS_RESET
41 #define WARNINGS_ENABLE
45 #define PERL_NO_GET_CONTEXT
56 #define HAVE_PERL_VERSION(R, V, S) \
57 (PERL_REVISION > (R) || (PERL_REVISION == (R) && (PERL_VERSION > (V) || (PERL_VERSION == (V) && (PERL_SUBVERSION >= (S))))))
59 #if HAVE_PERL_VERSION(5, 16, 0)
60 #define IF_HAVE_PERL_5_16(YES, NO) YES
62 #define IF_HAVE_PERL_5_16(YES, NO) NO
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)
70 #elif HAVE_PERL_VERSION(5, 15, 6)
72 #elif HAVE_PERL_VERSION(5, 15, 5)
74 #elif HAVE_PERL_VERSION(5, 13, 0)
77 #error "internal error: missing definition of KEY_my (your perl is too old)"
82 #define MY_PKG "Function::Parameters"
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:"
89 #define DEFSTRUCT(T) typedef struct T T; struct T
91 #define UV_BITS (sizeof (UV) * CHAR_BIT)
96 FLAG_DEFAULT_ARGS = 0x04,
97 FLAG_CHECK_NARGS = 0x08,
99 FLAG_NAMED_PARAMS = 0x20,
100 FLAG_TYPES_OK = 0x40,
101 FLAG_CHECK_TARGS = 0x80
110 static int (*next_keyword_plugin)(pTHX_ char *, STRLEN, OP **);
112 DEFSTRUCT(Resource) {
115 void (*destroy)(pTHX_ void *);
118 typedef Resource *Sentinel[1];
120 static void sentinel_clear_void(pTHX_ void *p) {
125 cur->destroy(aTHX_ cur->data);
127 cur->data = (void *)"no";
134 static Resource *sentinel_register(Sentinel sen, void *data, void (*destroy)(pTHX_ void *)) {
137 Newx(cur, 1, Resource);
139 cur->destroy = destroy;
146 static void sentinel_disarm(Resource *p) {
150 static void my_sv_refcnt_dec_void(pTHX_ void *p) {
155 static SV *sentinel_mortalize(Sentinel sen, SV *sv) {
156 sentinel_register(sen, sv, my_sv_refcnt_dec_void);
160 static int kw_flags(pTHX_ Sentinel sen, const char *kw_ptr, STRLEN kw_len, KWSpec *spec) {
163 const char *p, *kw_active;
164 STRLEN kw_active_len;
167 spec->shift = sentinel_mortalize(sen, newSVpvs(""));
168 spec->attrs = sentinel_mortalize(sen, newSVpvs(""));
170 if (!(hints = GvHV(PL_hintgv))) {
173 if (!(psv = hv_fetchs(hints, HINTK_KEYWORDS, 0))) {
177 kw_active = SvPV(sv, kw_active_len);
178 if (kw_active_len <= kw_len) {
183 (p = strchr(p, *kw_ptr)) &&
184 p < kw_active + kw_active_len - kw_len;
188 (p == kw_active || p[-1] == ' ') &&
190 memcmp(kw_ptr, p, kw_len) == 0
193 #define FETCH_HINTK_INTO(NAME, PTR, LEN, X) STMT_START { \
194 const char *fk_ptr_; \
197 fk_sv_ = sentinel_mortalize(sen, newSVpvs(HINTK_ ## NAME)); \
198 sv_catpvn(fk_sv_, PTR, LEN); \
199 fk_ptr_ = SvPV(fk_sv_, fk_len_); \
200 if (!((X) = hv_fetch(hints, fk_ptr_, fk_len_, 0))) { \
201 croak("%s: internal error: $^H{'%.*s'} not set", MY_PKG, (int)fk_len_, fk_ptr_); \
205 FETCH_HINTK_INTO(FLAGS_, kw_ptr, kw_len, psv);
206 spec->flags = SvIV(*psv);
208 FETCH_HINTK_INTO(SHIFT_, kw_ptr, kw_len, psv);
209 SvSetSV(spec->shift, *psv);
211 FETCH_HINTK_INTO(ATTRS_, kw_ptr, kw_len, psv);
212 SvSetSV(spec->attrs, *psv);
214 #undef FETCH_HINTK_INTO
222 #if HAVE_PERL_VERSION(5, 17, 2)
223 #define MY_OP_SLABBED(O) ((O)->op_slabbed)
225 #define MY_OP_SLABBED(O) 0
233 static void op_guard_init(OpGuard *p) {
235 p->needs_freed = FALSE;
238 static OpGuard op_guard_transfer(OpGuard *p) {
244 static OP *op_guard_relinquish(OpGuard *p) {
250 static void op_guard_update(OpGuard *p, OP *o) {
252 p->needs_freed = o && !MY_OP_SLABBED(o);
255 static void op_guard_clear(pTHX_ OpGuard *p) {
256 if (p->needs_freed) {
261 static void free_op_guard_void(pTHX_ void *vp) {
263 op_guard_clear(aTHX_ p);
267 static void free_op_void(pTHX_ void *vp) {
272 #define sv_eq_pvs(SV, S) my_sv_eq_pvn(aTHX_ SV, "" S "", sizeof (S) - 1)
274 static int my_sv_eq_pvn(pTHX_ SV *sv, const char *p, STRLEN n) {
276 const char *sv_p = SvPV(sv, sv_len);
277 return memcmp(sv_p, p, n) == 0;
281 #include "padop_on_crack.c.inc"
285 MY_ATTR_LVALUE = 0x01,
286 MY_ATTR_METHOD = 0x02,
287 MY_ATTR_SPECIAL = 0x04
290 static void my_sv_cat_c(pTHX_ SV *sv, U32 c) {
291 char ds[UTF8_MAXBYTES + 1], *d;
292 d = (char *)uvchr_to_utf8((U8 *)ds, c);
296 sv_catpvn(sv, ds, d - ds);
299 static bool my_is_uni_xidfirst(pTHX_ UV c) {
300 U8 tmpbuf[UTF8_MAXBYTES + 1];
301 uvchr_to_utf8(tmpbuf, c);
302 return is_utf8_xidfirst(tmpbuf);
305 static bool my_is_uni_xidcont(pTHX_ UV c) {
306 U8 tmpbuf[UTF8_MAXBYTES + 1];
307 uvchr_to_utf8(tmpbuf, c);
308 return is_utf8_xidcont(tmpbuf);
311 static SV *my_scan_word(pTHX_ Sentinel sen, bool allow_package) {
312 bool at_start, at_substart;
314 SV *sv = sentinel_mortalize(sen, newSVpvs(""));
319 at_start = at_substart = TRUE;
320 c = lex_peek_unichar(0);
323 if (at_substart ? my_is_uni_xidfirst(aTHX_ c) : my_is_uni_xidcont(aTHX_ c)) {
325 my_sv_cat_c(aTHX_ sv, c);
327 c = lex_peek_unichar(0);
328 } else if (allow_package && !at_substart && c == '\'') {
330 c = lex_peek_unichar(0);
331 if (!my_is_uni_xidfirst(aTHX_ c)) {
332 lex_stuff_pvs("'", 0);
337 } else if (allow_package && (at_start || !at_substart) && c == ':') {
339 if (lex_peek_unichar(0) != ':') {
340 lex_stuff_pvs(":", 0);
344 c = lex_peek_unichar(0);
345 if (!my_is_uni_xidfirst(aTHX_ c)) {
346 lex_stuff_pvs("::", 0);
357 return SvCUR(sv) ? sv : NULL;
360 static SV *my_scan_parens_tail(pTHX_ Sentinel sen, bool keep_backslash) {
365 start = CopLINE(PL_curcop);
367 sv = sentinel_mortalize(sen, newSVpvs(""));
374 c = lex_read_unichar(0);
376 CopLINE_set(PL_curcop, start);
381 c = lex_read_unichar(0);
383 CopLINE_set(PL_curcop, start);
386 if (keep_backslash || (c != '(' && c != ')')) {
389 } else if (c == '(') {
391 } else if (c == ')') {
398 my_sv_cat_c(aTHX_ sv, c);
404 static void my_check_prototype(pTHX_ Sentinel sen, const SV *declarator, SV *proto) {
405 char *start, *r, *w, *end;
409 start = SvPV(proto, len);
412 for (w = r = start; r < end; r++) {
418 SvCUR_set(proto, w - start);
422 if (!ckWARN(WARN_ILLEGALPROTO)) {
426 /* check for bad characters */
427 if (strspn(start, "$@%*;[]&\\_+") != len) {
428 SV *dsv = sentinel_mortalize(sen, newSVpvs(""));
430 packWARN(WARN_ILLEGALPROTO),
431 "Illegal character in prototype for %"SVf" : %s",
440 : pv_pretty(dsv, start, len, 60, NULL, NULL,
441 PERL_PV_ESCAPE_NONASCII
447 for (r = start; r < end; r++) {
451 packWARN(WARN_ILLEGALPROTO),
452 "Illegal character in prototype for %"SVf" : %s",
453 SVfARG(declarator), r
458 if (r[1] && !strchr(";@%", *r)) {
460 packWARN(WARN_ILLEGALPROTO),
461 "Illegal character after '_' in prototype for %"SVf" : %s",
462 SVfARG(declarator), r
472 packWARN(WARN_ILLEGALPROTO),
473 "prototype after '%c' for %"SVf": %s",
474 *r, SVfARG(declarator), r + 1
482 if (strchr("$@%&*", *r)) {
487 for (; r < end && *r != ']'; r++) {
488 if (!strchr("$@%&*", *r)) {
492 if (*r == ']' && r[-1] != '[') {
497 packWARN(WARN_ILLEGALPROTO),
498 "Illegal character after '\\' in prototype for %"SVf" : %s",
499 SVfARG(declarator), r
513 static SV *parse_type(pTHX_ Sentinel, const SV *);
515 static SV *parse_type_paramd(pTHX_ Sentinel sen, const SV *declarator) {
519 t = my_scan_word(aTHX_ sen, TRUE);
522 c = lex_peek_unichar(0);
528 my_sv_cat_c(aTHX_ t, c);
530 u = parse_type(aTHX_ sen, declarator);
533 c = lex_peek_unichar(0);
535 croak("In %"SVf": missing ']' after '%"SVf"'", SVfARG(declarator), SVfARG(t));
540 my_sv_cat_c(aTHX_ t, c);
546 static SV *parse_type(pTHX_ Sentinel sen, const SV *declarator) {
550 t = parse_type_paramd(aTHX_ sen, declarator);
552 c = lex_peek_unichar(0);
559 my_sv_cat_c(aTHX_ t, c);
560 u = parse_type_paramd(aTHX_ sen, declarator);
563 c = lex_peek_unichar(0);
569 static SV *reify_type(pTHX_ Sentinel sen, const SV *declarator, SV *name) {
582 n = call_pv("Moose::Util::TypeConstraints::find_or_create_isa_type_constraint", G_SCALAR);
586 /* don't warn about n being unused if assert() is compiled out */
589 t = sentinel_mortalize(sen, SvREFCNT_inc(POPs));
596 croak("In %"SVf": undefined type '%"SVf"'", SVfARG(declarator), SVfARG(name));
609 DEFSTRUCT(ParamInit) {
614 #define VEC(B) B ## _Vec
616 #define DEFVECTOR(B) DEFSTRUCT(VEC(B)) { \
622 DEFVECTOR(ParamInit);
624 #define DEFVECTOR_INIT(N, B) static void N(VEC(B) *p) { \
627 Newx(p->data, p->size, B); \
628 } static void N(VEC(B) *)
630 DEFSTRUCT(ParamSpec) {
632 VEC(Param) positional_required;
633 VEC(ParamInit) positional_optional;
634 VEC(Param) named_required;
635 VEC(ParamInit) named_optional;
640 DEFVECTOR_INIT(pv_init, Param);
641 DEFVECTOR_INIT(piv_init, ParamInit);
643 static void p_init(Param *p) {
645 p->padoff = NOT_IN_PAD;
649 static void ps_init(ParamSpec *ps) {
650 p_init(&ps->invocant);
651 pv_init(&ps->positional_required);
652 piv_init(&ps->positional_optional);
653 pv_init(&ps->named_required);
654 piv_init(&ps->named_optional);
656 ps->rest_hash = NOT_IN_PAD;
659 #define DEFVECTOR_EXTEND(N, B) static B (*N(VEC(B) *p)) { \
660 assert(p->used <= p->size); \
661 if (p->used == p->size) { \
662 const size_t n = p->size / 2 * 3 + 1; \
663 Renew(p->data, n, B); \
666 return &p->data[p->used]; \
667 } static B (*N(VEC(B) *))
669 DEFVECTOR_EXTEND(pv_extend, Param);
670 DEFVECTOR_EXTEND(piv_extend, ParamInit);
672 #define DEFVECTOR_CLEAR(N, B, F) static void N(pTHX_ VEC(B) *p) { \
675 F(aTHX_ &p->data[p->used]); \
680 } static void N(pTHX_ VEC(B) *)
682 static void p_clear(pTHX_ Param *p) {
684 p->padoff = NOT_IN_PAD;
688 static void pi_clear(pTHX_ ParamInit *pi) {
689 p_clear(aTHX_ &pi->param);
690 op_guard_clear(aTHX_ &pi->init);
693 DEFVECTOR_CLEAR(pv_clear, Param, p_clear);
694 DEFVECTOR_CLEAR(piv_clear, ParamInit, pi_clear);
696 static void ps_clear(pTHX_ ParamSpec *ps) {
697 p_clear(aTHX_ &ps->invocant);
699 pv_clear(aTHX_ &ps->positional_required);
700 piv_clear(aTHX_ &ps->positional_optional);
702 pv_clear(aTHX_ &ps->named_required);
703 piv_clear(aTHX_ &ps->named_optional);
705 p_clear(aTHX_ &ps->slurpy);
708 static int ps_contains(pTHX_ const ParamSpec *ps, SV *sv) {
711 if (ps->invocant.name && sv_eq(sv, ps->invocant.name)) {
715 for (i = 0, lim = ps->positional_required.used; i < lim; i++) {
716 if (sv_eq(sv, ps->positional_required.data[i].name)) {
721 for (i = 0, lim = ps->positional_optional.used; i < lim; i++) {
722 if (sv_eq(sv, ps->positional_optional.data[i].param.name)) {
727 for (i = 0, lim = ps->named_required.used; i < lim; i++) {
728 if (sv_eq(sv, ps->named_required.data[i].name)) {
733 for (i = 0, lim = ps->named_optional.used; i < lim; i++) {
734 if (sv_eq(sv, ps->named_optional.data[i].param.name)) {
742 static void ps_free_void(pTHX_ void *p) {
747 static int args_min(pTHX_ const ParamSpec *ps, const KWSpec *ks) {
750 return SvTRUE(ks->shift) ? 1 : 0;
752 if (ps->invocant.name) {
755 n += ps->positional_required.used;
756 n += ps->named_required.used * 2;
760 static int args_max(const ParamSpec *ps) {
765 if (ps->invocant.name) {
768 n += ps->positional_required.used;
769 n += ps->positional_optional.used;
770 if (ps->named_required.used || ps->named_optional.used || ps->slurpy.name) {
776 static size_t count_positional_params(const ParamSpec *ps) {
777 return ps->positional_required.used + ps->positional_optional.used;
780 static size_t count_named_params(const ParamSpec *ps) {
781 return ps->named_required.used + ps->named_optional.used;
784 static void my_require(pTHX_ const char *file) {
791 static SV *my_eval(pTHX_ Sentinel sen, I32 floor, OP *op) {
796 cv = newATTRSUB(floor, NULL, NULL, NULL, op);
802 call_sv((SV *)cv, G_SCALAR | G_NOARGS);
804 sv = sentinel_mortalize(sen, SvREFCNT_inc(POPs));
814 PARAM_INVOCANT = 0x01,
818 static PADOFFSET parse_param(
821 const SV *declarator, const KWSpec *spec, ParamSpec *param_spec,
822 int *pflags, SV **pname, OpGuard *ginit, SV **ptype
832 c = lex_peek_unichar(0);
834 if (spec->flags & FLAG_TYPES_OK) {
838 Resource *expr_sentinel;
842 floor = start_subparse(FALSE, 0);
843 SAVEFREESV(PL_compcv);
844 CvSPECIAL_on(PL_compcv);
846 if (!(expr = parse_fullexpr(PARSE_OPTIONAL))) {
847 croak("In %"SVf": invalid type expression", SVfARG(declarator));
849 if (MY_OP_SLABBED(expr)) {
850 expr_sentinel = NULL;
852 expr_sentinel = sentinel_register(sen, expr, free_op_void);
856 c = lex_peek_unichar(0);
858 croak("In %"SVf": missing ')' after type expression", SVfARG(declarator));
863 SvREFCNT_inc_simple_void(PL_compcv);
865 sentinel_disarm(expr_sentinel);
867 *ptype = my_eval(aTHX_ sen, floor, expr);
868 *ptype = reify_type(aTHX_ sen, declarator, *ptype);
869 if (!sv_isobject(*ptype)) {
870 croak("In %"SVf": (%"SVf") doesn't look like a type object", SVfARG(declarator), SVfARG(*ptype));
873 c = lex_peek_unichar(0);
874 } else if (my_is_uni_xidfirst(aTHX_ c)) {
875 *ptype = parse_type(aTHX_ sen, declarator);
876 my_require(aTHX_ "Moose/Util/TypeConstraints.pm");
877 *ptype = reify_type(aTHX_ sen, declarator, *ptype);
879 c = lex_peek_unichar(0);
887 *pflags |= PARAM_NAMED;
889 c = lex_peek_unichar(0);
893 croak("In %"SVf": unterminated parameter list", SVfARG(declarator));
896 if (!(c == '$' || c == '@' || c == '%')) {
897 croak("In %"SVf": unexpected '%c' in parameter list (expecting a sigil)", SVfARG(declarator), (int)c);
905 if (!(name = my_scan_word(aTHX_ sen, FALSE))) {
906 croak("In %"SVf": missing identifier after '%c'", SVfARG(declarator), sigil);
908 sv_insert(name, 0, 0, &sigil, 1);
912 c = lex_peek_unichar(0);
919 if (!param_spec->invocant.name && SvTRUE(spec->shift)) {
920 param_spec->invocant.name = spec->shift;
921 param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL);
924 op_guard_update(ginit, parse_termexpr(0));
927 c = lex_peek_unichar(0);
931 *pflags |= PARAM_INVOCANT;
934 } else if (c == ',') {
937 } else if (c != ')') {
939 croak("In %"SVf": unterminated parameter list", SVfARG(declarator));
941 croak("In %"SVf": unexpected '%c' in parameter list (expecting ',')", SVfARG(declarator), (int)c);
944 return pad_add_name_sv(*pname, IF_HAVE_PERL_5_16(padadd_NO_DUP_CHECK, 0), NULL, NULL);
947 static OP *my_var_g(pTHX_ I32 type, I32 flags, PADOFFSET padoff) {
948 OP *var = newOP(type, flags);
949 var->op_targ = padoff;
953 static OP *my_var(pTHX_ I32 flags, PADOFFSET padoff) {
954 return my_var_g(aTHX_ OP_PADSV, flags, padoff);
957 static OP *mkhvelem(pTHX_ PADOFFSET h, OP *k) {
958 OP *hv = my_var_g(aTHX_ OP_PADHV, OPf_REF, h);
959 return newBINOP(OP_HELEM, 0, hv, k);
962 static OP *mkconstsv(pTHX_ SV *sv) {
963 return newSVOP(OP_CONST, 0, sv);
966 static OP *mkconstiv(pTHX_ IV i) {
967 return mkconstsv(aTHX_ newSViv(i));
970 static OP *mkconstpv(pTHX_ const char *p, size_t n) {
971 return mkconstsv(aTHX_ newSVpv(p, n));
974 #define mkconstpvs(S) mkconstpv(aTHX_ "" S "", sizeof S - 1)
976 static OP *mktypecheck(pTHX_ const SV *declarator, int nr, SV *name, PADOFFSET padoff, SV *type) {
977 /* $type->check($value) or Carp::croak "...: " . $type->get_message($value) */
978 OP *chk, *err, *msg, *xcroak;
980 err = mkconstsv(aTHX_ newSVpvf("In %"SVf": parameter %d (%"SVf"): ", SVfARG(declarator), nr, SVfARG(name)));
984 args = op_append_elem(OP_LIST, args, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(type)));
985 args = op_append_elem(
989 : my_var(aTHX_ 0, padoff)
991 args = op_append_elem(OP_LIST, args, newUNOP(OP_METHOD, 0, mkconstpvs("get_message")));
994 msg->op_type = OP_ENTERSUB;
995 msg->op_ppaddr = PL_ppaddr[OP_ENTERSUB];
996 msg->op_flags |= OPf_STACKED;
999 msg = newBINOP(OP_CONCAT, 0, err, msg);
1003 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1005 xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak));
1010 args = op_append_elem(OP_LIST, args, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(type)));
1011 args = op_append_elem(
1013 padoff == NOT_IN_PAD
1014 ? S_newDEFSVOP(aTHX)
1015 : my_var(aTHX_ 0, padoff)
1017 args = op_append_elem(OP_LIST, args, newUNOP(OP_METHOD, 0, mkconstpvs("check")));
1020 chk->op_type = OP_ENTERSUB;
1021 chk->op_ppaddr = PL_ppaddr[OP_ENTERSUB];
1022 chk->op_flags |= OPf_STACKED;
1025 chk = newLOGOP(OP_OR, 0, chk, xcroak);
1029 static OP *mktypecheckp(pTHX_ const SV *declarator, int nr, const Param *param) {
1030 return mktypecheck(aTHX_ declarator, nr, param->name, param->padoff, param->type);
1033 static void register_info(pTHX_ UV key, SV *declarator, const KWSpec *kws, const ParamSpec *ps) {
1047 char *p = SvPV(declarator, n);
1048 char *q = memchr(p, ' ', n);
1049 mPUSHp(p, q ? (size_t)(q - p) : n);
1052 if (SvTRUE(kws->shift)) {
1058 mPUSHs(newRV_noinc((SV *)newAV()));
1059 mPUSHs(newRV_noinc((SV *)newAV()));
1060 mPUSHs(newRV_noinc((SV *)newAV()));
1061 mPUSHs(newRV_noinc((SV *)newAV()));
1066 if (ps->invocant.name) {
1067 PUSHs(ps->invocant.name);
1068 if (ps->invocant.type) {
1069 PUSHs(ps->invocant.type);
1082 lim = ps->positional_required.used;
1086 av_extend(av, (lim - 1) * 2);
1087 for (i = 0; i < lim; i++) {
1088 Param *cur = &ps->positional_required.data[i];
1089 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1090 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1094 mPUSHs(newRV_noinc((SV *)av));
1100 lim = ps->positional_optional.used;
1104 av_extend(av, (lim - 1) * 2);
1105 for (i = 0; i < lim; i++) {
1106 Param *cur = &ps->positional_optional.data[i].param;
1107 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1108 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1112 mPUSHs(newRV_noinc((SV *)av));
1118 lim = ps->named_required.used;
1122 av_extend(av, (lim - 1) * 2);
1123 for (i = 0; i < lim; i++) {
1124 Param *cur = &ps->named_required.data[i];
1125 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1126 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1130 mPUSHs(newRV_noinc((SV *)av));
1136 lim = ps->named_optional.used;
1140 av_extend(av, (lim - 1) * 2);
1141 for (i = 0; i < lim; i++) {
1142 Param *cur = &ps->named_optional.data[i].param;
1143 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1144 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1148 mPUSHs(newRV_noinc((SV *)av));
1151 if (ps->slurpy.name) {
1152 PUSHs(ps->slurpy.name);
1153 if (ps->slurpy.type) {
1154 PUSHs(ps->slurpy.type);
1166 call_pv(MY_PKG "::_register_info", G_VOID);
1172 static int parse_fun(pTHX_ Sentinel sen, OP **pop, const char *keyword_ptr, STRLEN keyword_len, const KWSpec *spec) {
1173 ParamSpec *param_spec;
1178 OpGuard *prelude_sentinel;
1180 OpGuard *attrs_sentinel;
1182 unsigned builtin_attrs;
1185 declarator = sentinel_mortalize(sen, newSVpvn(keyword_ptr, keyword_len));
1193 if ((spec->flags & FLAG_NAME_OK) && (saw_name = my_scan_word(aTHX_ sen, TRUE))) {
1195 if (PL_parser->expect != XSTATE) {
1196 /* bail out early so we don't predeclare $saw_name */
1197 croak("In %"SVf": I was expecting a function body, not \"%"SVf"\"", SVfARG(declarator), SVfARG(saw_name));
1200 sv_catpvs(declarator, " ");
1201 sv_catsv(declarator, saw_name);
1204 sv_eq_pvs(saw_name, "BEGIN") ||
1205 sv_eq_pvs(saw_name, "END") ||
1206 sv_eq_pvs(saw_name, "INIT") ||
1207 sv_eq_pvs(saw_name, "CHECK") ||
1208 sv_eq_pvs(saw_name, "UNITCHECK")
1210 builtin_attrs |= MY_ATTR_SPECIAL;
1214 } else if (!(spec->flags & FLAG_ANON_OK)) {
1215 croak("I was expecting a function name, not \"%.*s\"", (int)(PL_parser->bufend - PL_parser->bufptr), PL_parser->bufptr);
1217 sv_catpvs(declarator, " (anon)");
1220 /* we're a subroutine declaration */
1221 floor_ix = start_subparse(FALSE, saw_name ? 0 : CVf_ANON);
1222 SAVEFREESV(PL_compcv);
1224 /* create outer block: '{' */
1225 save_ix = S_block_start(aTHX_ TRUE);
1227 /* initialize synthetic optree */
1228 Newx(prelude_sentinel, 1, OpGuard);
1229 op_guard_init(prelude_sentinel);
1230 sentinel_register(sen, prelude_sentinel, free_op_guard_void);
1235 c = lex_peek_unichar(0);
1237 OpGuard *init_sentinel;
1239 Newx(init_sentinel, 1, OpGuard);
1240 op_guard_init(init_sentinel);
1241 sentinel_register(sen, init_sentinel, free_op_guard_void);
1243 Newx(param_spec, 1, ParamSpec);
1244 ps_init(param_spec);
1245 sentinel_register(sen, param_spec, ps_free_void);
1247 lex_read_unichar(0);
1250 while ((c = lex_peek_unichar(0)) != ')') {
1256 padoff = parse_param(aTHX_ sen, declarator, spec, param_spec, &flags, &name, init_sentinel, &type);
1260 sigil = SvPV_nolen(name)[0];
1262 /* internal consistency */
1263 if (flags & PARAM_NAMED) {
1264 if (flags & PARAM_INVOCANT) {
1265 croak("In %"SVf": invocant %"SVf" can't be a named parameter", SVfARG(declarator), SVfARG(name));
1268 croak("In %"SVf": named parameter %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash");
1270 } else if (flags & PARAM_INVOCANT) {
1271 if (init_sentinel->op) {
1272 croak("In %"SVf": invocant %"SVf" can't have a default value", SVfARG(declarator), SVfARG(name));
1275 croak("In %"SVf": invocant %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash");
1277 } else if (sigil != '$' && init_sentinel->op) {
1278 croak("In %"SVf": %s %"SVf" can't have a default value", SVfARG(declarator), sigil == '@' ? "array" : "hash", SVfARG(name));
1281 /* external constraints */
1282 if (param_spec->slurpy.name) {
1283 croak("In %"SVf": I was expecting \")\" after \"%"SVf"\", not \"%"SVf"\"", SVfARG(declarator), SVfARG(param_spec->slurpy.name), SVfARG(name));
1286 assert(!init_sentinel->op);
1287 param_spec->slurpy.name = name;
1288 param_spec->slurpy.padoff = padoff;
1289 param_spec->slurpy.type = type;
1293 if (!(flags & PARAM_NAMED) && count_named_params(param_spec)) {
1294 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));
1297 if (flags & PARAM_INVOCANT) {
1298 if (param_spec->invocant.name) {
1299 croak("In %"SVf": invalid double invocants %"SVf", %"SVf"", SVfARG(declarator), SVfARG(param_spec->invocant.name), SVfARG(name));
1301 if (count_positional_params(param_spec) || count_named_params(param_spec)) {
1302 croak("In %"SVf": invocant %"SVf" must be first in parameter list", SVfARG(declarator), SVfARG(name));
1304 if (!(spec->flags & FLAG_INVOCANT)) {
1305 croak("In %"SVf": invocant %"SVf" not allowed here", SVfARG(declarator), SVfARG(name));
1307 param_spec->invocant.name = name;
1308 param_spec->invocant.padoff = padoff;
1309 param_spec->invocant.type = type;
1313 if (init_sentinel->op && !(spec->flags & FLAG_DEFAULT_ARGS)) {
1314 croak("In %"SVf": default argument for %"SVf" not allowed here", SVfARG(declarator), SVfARG(name));
1317 if (ps_contains(aTHX_ param_spec, name)) {
1318 croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(name));
1321 if (flags & PARAM_NAMED) {
1322 if (!(spec->flags & FLAG_NAMED_PARAMS)) {
1323 croak("In %"SVf": named parameter :%"SVf" not allowed here", SVfARG(declarator), SVfARG(name));
1326 if (init_sentinel->op) {
1327 ParamInit *pi = piv_extend(¶m_spec->named_optional);
1328 pi->param.name = name;
1329 pi->param.padoff = padoff;
1330 pi->param.type = type;
1331 pi->init = op_guard_transfer(init_sentinel);
1332 param_spec->named_optional.used++;
1336 if (param_spec->positional_optional.used) {
1337 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));
1340 p = pv_extend(¶m_spec->named_required);
1344 param_spec->named_required.used++;
1347 if (init_sentinel->op || param_spec->positional_optional.used) {
1348 ParamInit *pi = piv_extend(¶m_spec->positional_optional);
1349 pi->param.name = name;
1350 pi->param.padoff = padoff;
1351 pi->param.type = type;
1352 pi->init = op_guard_transfer(init_sentinel);
1353 param_spec->positional_optional.used++;
1355 Param *p = pv_extend(¶m_spec->positional_required);
1359 param_spec->positional_required.used++;
1364 lex_read_unichar(0);
1367 if (!param_spec->invocant.name && SvTRUE(spec->shift)) {
1368 if (ps_contains(aTHX_ param_spec, spec->shift)) {
1369 croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(spec->shift));
1372 param_spec->invocant.name = spec->shift;
1373 param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL);
1379 c = lex_peek_unichar(0);
1381 lex_read_unichar(0);
1384 c = lex_peek_unichar(0);
1386 lex_stuff_pvs(":", 0);
1389 lex_read_unichar(0);
1390 if (!(proto = my_scan_parens_tail(aTHX_ sen, FALSE))) {
1391 croak("In %"SVf": prototype not terminated", SVfARG(declarator));
1393 my_check_prototype(aTHX_ sen, declarator, proto);
1395 c = lex_peek_unichar(0);
1396 if (!(c == ':' || c == '{')) {
1397 lex_stuff_pvs(":", 0);
1404 Newx(attrs_sentinel, 1, OpGuard);
1405 op_guard_init(attrs_sentinel);
1406 sentinel_register(sen, attrs_sentinel, free_op_guard_void);
1408 if (c == ':' || c == '{') /* '}' - hi, vim */ {
1410 /* kludge default attributes in */
1411 if (SvTRUE(spec->attrs) && SvPV_nolen(spec->attrs)[0] == ':') {
1412 lex_stuff_sv(spec->attrs, 0);
1417 lex_read_unichar(0);
1419 c = lex_peek_unichar(0);
1424 if (!(attr = my_scan_word(aTHX_ sen, FALSE))) {
1429 c = lex_peek_unichar(0);
1432 if (sv_eq_pvs(attr, "lvalue")) {
1433 builtin_attrs |= MY_ATTR_LVALUE;
1435 } else if (sv_eq_pvs(attr, "method")) {
1436 builtin_attrs |= MY_ATTR_METHOD;
1441 lex_read_unichar(0);
1442 if (!(sv = my_scan_parens_tail(aTHX_ sen, TRUE))) {
1443 croak("In %"SVf": unterminated attribute parameter in attribute list", SVfARG(declarator));
1445 sv_catpvs(attr, "(");
1447 sv_catpvs(attr, ")");
1450 c = lex_peek_unichar(0);
1454 op_guard_update(attrs_sentinel, op_append_elem(OP_LIST, attrs_sentinel->op, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(attr))));
1458 lex_read_unichar(0);
1460 c = lex_peek_unichar(0);
1467 if (c != '{') /* '}' - hi, vim */ {
1468 croak("In %"SVf": I was expecting a function body, not \"%c\"", SVfARG(declarator), (int)c);
1471 /* surprise predeclaration! */
1473 /* 'sub NAME (PROTO);' to make name/proto known to perl before it
1474 starts parsing the body */
1475 const I32 sub_ix = start_subparse(FALSE, 0);
1476 SAVEFREESV(PL_compcv);
1478 SvREFCNT_inc_simple_void(PL_compcv);
1482 mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(saw_name)),
1483 proto ? mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(proto)) : NULL,
1489 if (builtin_attrs & MY_ATTR_LVALUE) {
1490 CvLVALUE_on(PL_compcv);
1492 if (builtin_attrs & MY_ATTR_METHOD) {
1493 CvMETHOD_on(PL_compcv);
1495 if (builtin_attrs & MY_ATTR_SPECIAL) {
1496 CvSPECIAL_on(PL_compcv);
1499 /* check number of arguments */
1500 if (spec->flags & FLAG_CHECK_NARGS) {
1503 amin = args_min(aTHX_ param_spec, spec);
1505 OP *chk, *cond, *err, *xcroak;
1507 err = mkconstsv(aTHX_ newSVpvf("Not enough arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amin));
1511 newAVREF(newGVOP(OP_GV, 0, PL_defgv))
1519 xcroak = newCVREF(OPf_WANT_SCALAR,
1520 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)));
1521 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
1522 op_append_elem(OP_LIST, err, xcroak));
1524 cond = newBINOP(OP_LT, 0,
1525 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1526 mkconstiv(aTHX_ amin));
1527 chk = newLOGOP(OP_AND, 0, cond, err);
1529 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, chk)));
1532 amax = args_max(param_spec);
1534 OP *chk, *cond, *err, *xcroak;
1536 err = mkconstsv(aTHX_ newSVpvf("Too many arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amax));
1540 newAVREF(newGVOP(OP_GV, 0, PL_defgv))
1550 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1552 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
1553 op_append_elem(OP_LIST, err, xcroak));
1557 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1558 mkconstiv(aTHX_ amax)
1560 chk = newLOGOP(OP_AND, 0, cond, err);
1562 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, chk)));
1565 if (param_spec && (count_named_params(param_spec) || (param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%'))) {
1566 OP *chk, *cond, *err, *xcroak;
1567 const UV fixed = count_positional_params(param_spec) + !!param_spec->invocant.name;
1569 err = mkconstsv(aTHX_ newSVpvf("Odd number of paired arguments for %"SVf"", SVfARG(declarator)));
1573 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1575 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
1576 op_append_elem(OP_LIST, err, xcroak));
1578 cond = newBINOP(OP_GT, 0,
1579 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1580 mkconstiv(aTHX_ fixed));
1581 cond = newLOGOP(OP_AND, 0,
1583 newBINOP(OP_MODULO, 0,
1585 ? newBINOP(OP_SUBTRACT, 0,
1586 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1587 mkconstiv(aTHX_ fixed))
1588 : newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1589 mkconstiv(aTHX_ 2)));
1590 chk = newLOGOP(OP_AND, 0, cond, err);
1592 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, chk)));
1597 /* my $invocant = shift; */
1598 if (SvTRUE(spec->shift)) {
1603 OPf_MOD | (OPpLVAL_INTRO << 8),
1604 pad_add_name_sv(spec->shift, 0, NULL, NULL)
1606 var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0));
1608 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, var)));
1611 /* my $invocant = shift; */
1612 if (param_spec->invocant.name) {
1617 OPf_MOD | (OPpLVAL_INTRO << 8),
1618 param_spec->invocant.padoff
1620 var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0));
1622 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, var)));
1624 if (param_spec->invocant.type && (spec->flags & FLAG_CHECK_TARGS)) {
1625 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, 0, ¶m_spec->invocant))));
1629 /* my (...) = @_; */
1636 for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) {
1637 OP *const var = my_var(
1639 OPf_WANT_LIST | (OPpLVAL_INTRO << 8),
1640 param_spec->positional_required.data[i].padoff
1642 lhs = op_append_elem(OP_LIST, lhs, var);
1645 for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) {
1646 OP *const var = my_var(
1648 OPf_WANT_LIST | (OPpLVAL_INTRO << 8),
1649 param_spec->positional_optional.data[i].param.padoff
1651 lhs = op_append_elem(OP_LIST, lhs, var);
1661 * 1) no named params
1668 * => synthetic %{rest}
1669 * 2.2) slurpy is a hash
1671 * 2.3) slurpy is an array
1672 * => synthetic %{rest}
1673 * remember to declare array later
1676 slurpy_hash = param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%';
1677 if (!count_named_params(param_spec)) {
1678 if (param_spec->slurpy.name) {
1679 padoff = param_spec->slurpy.padoff;
1680 type = slurpy_hash ? OP_PADHV : OP_PADAV;
1682 padoff = NOT_IN_PAD;
1685 } else if (slurpy_hash) {
1686 padoff = param_spec->slurpy.padoff;
1689 padoff = param_spec->rest_hash = pad_add_name_pvs("%{rest}", 0, NULL, NULL);
1693 if (padoff != NOT_IN_PAD) {
1694 OP *const var = my_var_g(
1697 OPf_WANT_LIST | (OPpLVAL_INTRO << 8),
1701 lhs = op_append_elem(OP_LIST, lhs, var);
1703 if (type == OP_PADHV) {
1704 param_spec->rest_hash = padoff;
1711 lhs->op_flags |= OPf_PARENS;
1712 rhs = newAVREF(newGVOP(OP_GV, 0, PL_defgv));
1714 op_guard_update(prelude_sentinel, op_append_list(
1715 OP_LINESEQ, prelude_sentinel->op,
1718 newASSIGNOP(OPf_STACKED, lhs, 0, rhs)
1724 /* default positional arguments */
1731 req = param_spec->positional_required.used;
1732 for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) {
1733 ParamInit *cur = ¶m_spec->positional_optional.data[i];
1738 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1739 mkconstiv(aTHX_ req + i + 1)
1742 var = my_var(aTHX_ 0, cur->param.padoff);
1744 nest = op_append_list(
1746 newASSIGNOP(OPf_STACKED, var, 0, op_guard_relinquish(&cur->init))
1756 op_guard_update(prelude_sentinel, op_append_list(
1757 OP_LINESEQ, prelude_sentinel->op,
1762 /* named parameters */
1763 if (count_named_params(param_spec)) {
1766 assert(param_spec->rest_hash != NOT_IN_PAD);
1768 for (i = 0, lim = param_spec->named_required.used; i < lim; i++) {
1769 Param *cur = ¶m_spec->named_required.data[i];
1771 char *p = SvPV(cur->name, n);
1774 cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1776 if (spec->flags & FLAG_CHECK_NARGS) {
1779 var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1780 var = newUNOP(OP_DELETE, 0, var);
1782 msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": missing named parameter: %.*s", SVfARG(declarator), (int)(n - 1), p + 1));
1785 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1787 xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak));
1789 cond = newUNOP(OP_EXISTS, 0, cond);
1791 cond = newCONDOP(0, cond, var, xcroak);
1796 OPf_MOD | (OPpLVAL_INTRO << 8),
1799 var = newASSIGNOP(OPf_STACKED, var, 0, cond);
1801 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, var)));
1804 for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) {
1805 ParamInit *cur = ¶m_spec->named_optional.data[i];
1807 char *p = SvPV(cur->param.name, n);
1810 var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1811 var = newUNOP(OP_DELETE, 0, var);
1813 cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1814 cond = newUNOP(OP_EXISTS, 0, cond);
1816 cond = newCONDOP(0, cond, var, op_guard_relinquish(&cur->init));
1820 OPf_MOD | (OPpLVAL_INTRO << 8),
1823 var = newASSIGNOP(OPf_STACKED, var, 0, cond);
1825 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, var)));
1828 if (!param_spec->slurpy.name) {
1829 if (spec->flags & FLAG_CHECK_NARGS) {
1830 /* croak if %{rest} */
1831 OP *xcroak, *cond, *keys, *msg;
1833 keys = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash));
1834 keys = newLISTOP(OP_SORT, 0, newOP(OP_PUSHMARK, 0), keys);
1836 OP *first, *mid, *last;
1840 mid = mkconstpvs(", ");
1841 mid->op_sibling = last;
1843 first = newOP(OP_PUSHMARK, 0);
1845 keys = newLISTOP(OP_JOIN, 0, first, mid);
1846 keys->op_targ = pad_alloc(OP_JOIN, SVs_PADTMP);
1847 ((LISTOP *)keys)->op_last = last;
1850 msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": no such named parameter: ", SVfARG(declarator)));
1851 msg = newBINOP(OP_CONCAT, 0, msg, keys);
1855 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1857 xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak));
1859 cond = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash));
1860 xcroak = newCONDOP(0, cond, xcroak, NULL);
1862 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, xcroak)));
1866 clear = newASSIGNOP(
1868 my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash),
1873 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, clear)));
1875 } else if (param_spec->slurpy.padoff != param_spec->rest_hash) {
1878 assert(SvPV_nolen(param_spec->slurpy.name)[0] == '@');
1883 OPf_MOD | (OPpLVAL_INTRO << 8),
1884 param_spec->slurpy.padoff
1887 var = newASSIGNOP(OPf_STACKED, var, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash));
1889 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, var)));
1891 clear = newASSIGNOP(
1893 my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash),
1898 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, clear)));
1902 if (spec->flags & FLAG_CHECK_TARGS) {
1903 size_t i, lim, base;
1906 for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) {
1907 Param *cur = ¶m_spec->positional_required.data[i];
1910 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur))));
1915 for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) {
1916 Param *cur = ¶m_spec->positional_optional.data[i].param;
1919 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur))));
1924 for (i = 0, lim = param_spec->named_required.used; i < lim; i++) {
1925 Param *cur = ¶m_spec->named_required.data[i];
1928 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur))));
1933 for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) {
1934 Param *cur = ¶m_spec->named_optional.data[i].param;
1937 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur))));
1942 if (param_spec->slurpy.type) {
1943 /* $type->valid($_) or croak $type->get_message($_) for @rest / values %rest */
1944 OP *check, *list, *loop;
1946 check = mktypecheck(aTHX_ declarator, base, param_spec->slurpy.name, NOT_IN_PAD, param_spec->slurpy.type);
1948 if (SvPV_nolen(param_spec->slurpy.name)[0] == '@') {
1949 list = my_var_g(aTHX_ OP_PADAV, 0, param_spec->slurpy.padoff);
1951 list = my_var_g(aTHX_ OP_PADHV, 0, param_spec->slurpy.padoff);
1952 list = newUNOP(OP_VALUES, 0, list);
1955 loop = newFOROP(0, NULL, list, check, NULL);
1957 op_guard_update(prelude_sentinel, op_append_list(OP_LINESEQ, prelude_sentinel->op, newSTATEOP(0, NULL, loop)));
1962 /* finally let perl parse the actual subroutine body */
1963 body = parse_block(0);
1965 /* add '();' to make function return nothing by default */
1966 /* (otherwise the invisible parameter initialization can "leak" into
1967 the return value: fun ($x) {}->("asdf", 0) == 2) */
1968 if (prelude_sentinel->op) {
1969 body = newSTATEOP(0, NULL, body);
1972 body = op_append_list(OP_LINESEQ, op_guard_relinquish(prelude_sentinel), body);
1977 OP *const attrs = op_guard_relinquish(attrs_sentinel);
1979 SvREFCNT_inc_simple_void(PL_compcv);
1981 /* close outer block: '}' */
1982 S_block_end(aTHX_ save_ix, body);
1986 saw_name ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(saw_name)) : NULL,
1987 proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL,
1993 register_info(aTHX_ PTR2UV(CvROOT(cv)), declarator, spec, param_spec);
1997 *pop = newOP(OP_NULL, 0);
1998 return KEYWORD_PLUGIN_STMT;
2008 return KEYWORD_PLUGIN_EXPR;
2012 static int my_keyword_plugin(pTHX_ char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) {
2015 Sentinel sen = { NULL };
2020 SAVEDESTRUCTOR_X(sentinel_clear_void, sen);
2022 if (kw_flags(aTHX_ sen, keyword_ptr, keyword_len, &spec)) {
2023 ret = parse_fun(aTHX_ sen, op_ptr, keyword_ptr, keyword_len, &spec);
2025 ret = next_keyword_plugin(aTHX_ keyword_ptr, keyword_len, op_ptr);
2036 MODULE = Function::Parameters PACKAGE = Function::Parameters PREFIX = fp_
2047 xcv = sv_2cv(sv, &hv, &gv, 0);
2048 RETVAL = PTR2UV(xcv ? CvROOT(xcv) : NULL);
2054 HV *const stash = gv_stashpvs(MY_PKG, GV_ADD);
2056 newCONSTSUB(stash, "FLAG_NAME_OK", newSViv(FLAG_NAME_OK));
2057 newCONSTSUB(stash, "FLAG_ANON_OK", newSViv(FLAG_ANON_OK));
2058 newCONSTSUB(stash, "FLAG_DEFAULT_ARGS", newSViv(FLAG_DEFAULT_ARGS));
2059 newCONSTSUB(stash, "FLAG_CHECK_NARGS", newSViv(FLAG_CHECK_NARGS));
2060 newCONSTSUB(stash, "FLAG_INVOCANT", newSViv(FLAG_INVOCANT));
2061 newCONSTSUB(stash, "FLAG_NAMED_PARAMS", newSViv(FLAG_NAMED_PARAMS));
2062 newCONSTSUB(stash, "FLAG_TYPES_OK", newSViv(FLAG_TYPES_OK));
2063 newCONSTSUB(stash, "FLAG_CHECK_TARGS", newSViv(FLAG_CHECK_TARGS));
2064 newCONSTSUB(stash, "HINTK_KEYWORDS", newSVpvs(HINTK_KEYWORDS));
2065 newCONSTSUB(stash, "HINTK_FLAGS_", newSVpvs(HINTK_FLAGS_));
2066 newCONSTSUB(stash, "HINTK_SHIFT_", newSVpvs(HINTK_SHIFT_));
2067 newCONSTSUB(stash, "HINTK_ATTRS_", newSVpvs(HINTK_ATTRS_));
2069 next_keyword_plugin = PL_keyword_plugin;
2070 PL_keyword_plugin = my_keyword_plugin;