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 static void free_ptr_op_void(pTHX_ void *vp) {
228 static void free_op_void(pTHX_ void *vp) {
233 #define sv_eq_pvs(SV, S) my_sv_eq_pvn(aTHX_ SV, "" S "", sizeof (S) - 1)
235 static int my_sv_eq_pvn(pTHX_ SV *sv, const char *p, STRLEN n) {
237 const char *sv_p = SvPV(sv, sv_len);
238 return memcmp(sv_p, p, n) == 0;
242 #include "padop_on_crack.c.inc"
246 MY_ATTR_LVALUE = 0x01,
247 MY_ATTR_METHOD = 0x02,
248 MY_ATTR_SPECIAL = 0x04
251 static void my_sv_cat_c(pTHX_ SV *sv, U32 c) {
252 char ds[UTF8_MAXBYTES + 1], *d;
253 d = (char *)uvchr_to_utf8((U8 *)ds, c);
257 sv_catpvn(sv, ds, d - ds);
260 static bool my_is_uni_xidfirst(pTHX_ UV c) {
261 U8 tmpbuf[UTF8_MAXBYTES + 1];
262 uvchr_to_utf8(tmpbuf, c);
263 return is_utf8_xidfirst(tmpbuf);
266 static bool my_is_uni_xidcont(pTHX_ UV c) {
267 U8 tmpbuf[UTF8_MAXBYTES + 1];
268 uvchr_to_utf8(tmpbuf, c);
269 return is_utf8_xidcont(tmpbuf);
272 static SV *my_scan_word(pTHX_ Sentinel sen, bool allow_package) {
273 bool at_start, at_substart;
275 SV *sv = sentinel_mortalize(sen, newSVpvs(""));
280 at_start = at_substart = TRUE;
281 c = lex_peek_unichar(0);
284 if (at_substart ? my_is_uni_xidfirst(aTHX_ c) : my_is_uni_xidcont(aTHX_ c)) {
286 my_sv_cat_c(aTHX_ sv, c);
288 c = lex_peek_unichar(0);
289 } else if (allow_package && !at_substart && c == '\'') {
291 c = lex_peek_unichar(0);
292 if (!my_is_uni_xidfirst(aTHX_ c)) {
293 lex_stuff_pvs("'", 0);
298 } else if (allow_package && (at_start || !at_substart) && c == ':') {
300 if (lex_peek_unichar(0) != ':') {
301 lex_stuff_pvs(":", 0);
305 c = lex_peek_unichar(0);
306 if (!my_is_uni_xidfirst(aTHX_ c)) {
307 lex_stuff_pvs("::", 0);
318 return SvCUR(sv) ? sv : NULL;
321 static SV *my_scan_parens_tail(pTHX_ Sentinel sen, bool keep_backslash) {
326 start = CopLINE(PL_curcop);
328 sv = sentinel_mortalize(sen, newSVpvs(""));
335 c = lex_read_unichar(0);
337 CopLINE_set(PL_curcop, start);
342 c = lex_read_unichar(0);
344 CopLINE_set(PL_curcop, start);
347 if (keep_backslash || (c != '(' && c != ')')) {
350 } else if (c == '(') {
352 } else if (c == ')') {
359 my_sv_cat_c(aTHX_ sv, c);
365 static void my_check_prototype(pTHX_ Sentinel sen, const SV *declarator, SV *proto) {
366 char *start, *r, *w, *end;
370 start = SvPV(proto, len);
373 for (w = r = start; r < end; r++) {
379 SvCUR_set(proto, w - start);
383 if (!ckWARN(WARN_ILLEGALPROTO)) {
387 /* check for bad characters */
388 if (strspn(start, "$@%*;[]&\\_+") != len) {
389 SV *dsv = sentinel_mortalize(sen, newSVpvs(""));
391 packWARN(WARN_ILLEGALPROTO),
392 "Illegal character in prototype for %"SVf" : %s",
401 : pv_pretty(dsv, start, len, 60, NULL, NULL,
402 PERL_PV_ESCAPE_NONASCII
408 for (r = start; r < end; r++) {
412 packWARN(WARN_ILLEGALPROTO),
413 "Illegal character in prototype for %"SVf" : %s",
414 SVfARG(declarator), r
419 if (r[1] && !strchr(";@%", *r)) {
421 packWARN(WARN_ILLEGALPROTO),
422 "Illegal character after '_' in prototype for %"SVf" : %s",
423 SVfARG(declarator), r
433 packWARN(WARN_ILLEGALPROTO),
434 "prototype after '%c' for %"SVf": %s",
435 *r, SVfARG(declarator), r + 1
443 if (strchr("$@%&*", *r)) {
448 for (; r < end && *r != ']'; r++) {
449 if (!strchr("$@%&*", *r)) {
453 if (*r == ']' && r[-1] != '[') {
458 packWARN(WARN_ILLEGALPROTO),
459 "Illegal character after '\\' in prototype for %"SVf" : %s",
460 SVfARG(declarator), r
474 static SV *parse_type(pTHX_ Sentinel, const SV *);
476 static SV *parse_type_paramd(pTHX_ Sentinel sen, const SV *declarator) {
480 t = my_scan_word(aTHX_ sen, TRUE);
483 c = lex_peek_unichar(0);
489 my_sv_cat_c(aTHX_ t, c);
491 u = parse_type(aTHX_ sen, declarator);
494 c = lex_peek_unichar(0);
496 croak("In %"SVf": missing ']' after '%"SVf"'", SVfARG(declarator), SVfARG(t));
501 my_sv_cat_c(aTHX_ t, c);
507 static SV *parse_type(pTHX_ Sentinel sen, const SV *declarator) {
511 t = parse_type_paramd(aTHX_ sen, declarator);
513 c = lex_peek_unichar(0);
520 my_sv_cat_c(aTHX_ t, c);
521 u = parse_type_paramd(aTHX_ sen, declarator);
524 c = lex_peek_unichar(0);
530 static SV *reify_type(pTHX_ Sentinel sen, const SV *declarator, SV *name) {
543 n = call_pv("Moose::Util::TypeConstraints::find_or_parse_type_constraint", G_SCALAR);
547 /* don't warn about n being unused if assert() is compiled out */
550 t = sentinel_mortalize(sen, SvREFCNT_inc(POPs));
557 croak("In %"SVf": undefined type '%"SVf"'", SVfARG(declarator), SVfARG(name));
570 DEFSTRUCT(ParamInit) {
575 #define VEC(B) B ## _Vec
577 #define DEFVECTOR(B) DEFSTRUCT(VEC(B)) { \
583 DEFVECTOR(ParamInit);
585 #define DEFVECTOR_INIT(N, B) static void N(VEC(B) *p) { \
588 Newx(p->data, p->size, B); \
589 } static void N(VEC(B) *)
591 DEFSTRUCT(ParamSpec) {
593 VEC(Param) positional_required;
594 VEC(ParamInit) positional_optional;
595 VEC(Param) named_required;
596 VEC(ParamInit) named_optional;
601 DEFVECTOR_INIT(pv_init, Param);
602 DEFVECTOR_INIT(piv_init, ParamInit);
604 static void p_init(Param *p) {
606 p->padoff = NOT_IN_PAD;
610 static void ps_init(ParamSpec *ps) {
611 p_init(&ps->invocant);
612 pv_init(&ps->positional_required);
613 piv_init(&ps->positional_optional);
614 pv_init(&ps->named_required);
615 piv_init(&ps->named_optional);
617 ps->rest_hash = NOT_IN_PAD;
620 #define DEFVECTOR_EXTEND(N, B) static B (*N(VEC(B) *p)) { \
621 assert(p->used <= p->size); \
622 if (p->used == p->size) { \
623 const size_t n = p->size / 2 * 3 + 1; \
624 Renew(p->data, n, B); \
627 return &p->data[p->used]; \
628 } static B (*N(VEC(B) *))
630 DEFVECTOR_EXTEND(pv_extend, Param);
631 DEFVECTOR_EXTEND(piv_extend, ParamInit);
633 #define DEFVECTOR_CLEAR(N, B, F) static void N(pTHX_ VEC(B) *p) { \
636 F(aTHX_ &p->data[p->used]); \
641 } static void N(pTHX_ VEC(B) *)
643 static void p_clear(pTHX_ Param *p) {
645 p->padoff = NOT_IN_PAD;
649 static void pi_clear(pTHX_ ParamInit *pi) {
650 p_clear(aTHX_ &pi->param);
657 DEFVECTOR_CLEAR(pv_clear, Param, p_clear);
658 DEFVECTOR_CLEAR(piv_clear, ParamInit, pi_clear);
660 static void ps_clear(pTHX_ ParamSpec *ps) {
661 p_clear(aTHX_ &ps->invocant);
663 pv_clear(aTHX_ &ps->positional_required);
664 piv_clear(aTHX_ &ps->positional_optional);
666 pv_clear(aTHX_ &ps->named_required);
667 piv_clear(aTHX_ &ps->named_optional);
669 p_clear(aTHX_ &ps->slurpy);
672 static int ps_contains(pTHX_ const ParamSpec *ps, SV *sv) {
675 if (ps->invocant.name && sv_eq(sv, ps->invocant.name)) {
679 for (i = 0, lim = ps->positional_required.used; i < lim; i++) {
680 if (sv_eq(sv, ps->positional_required.data[i].name)) {
685 for (i = 0, lim = ps->positional_optional.used; i < lim; i++) {
686 if (sv_eq(sv, ps->positional_optional.data[i].param.name)) {
691 for (i = 0, lim = ps->named_required.used; i < lim; i++) {
692 if (sv_eq(sv, ps->named_required.data[i].name)) {
697 for (i = 0, lim = ps->named_optional.used; i < lim; i++) {
698 if (sv_eq(sv, ps->named_optional.data[i].param.name)) {
706 static void ps_free_void(pTHX_ void *p) {
711 static int args_min(pTHX_ const ParamSpec *ps, const KWSpec *ks) {
714 return SvTRUE(ks->shift) ? 1 : 0;
716 if (ps->invocant.name) {
719 n += ps->positional_required.used;
720 n += ps->named_required.used * 2;
724 static int args_max(const ParamSpec *ps) {
729 if (ps->invocant.name) {
732 n += ps->positional_required.used;
733 n += ps->positional_optional.used;
734 if (ps->named_required.used || ps->named_optional.used || ps->slurpy.name) {
740 static size_t count_positional_params(const ParamSpec *ps) {
741 return ps->positional_required.used + ps->positional_optional.used;
744 static size_t count_named_params(const ParamSpec *ps) {
745 return ps->named_required.used + ps->named_optional.used;
748 static void my_require(pTHX_ const char *file) {
755 static SV *my_eval(pTHX_ Sentinel sen, I32 floor, OP *op) {
760 cv = newATTRSUB(floor, NULL, NULL, NULL, op);
766 call_sv((SV *)cv, G_SCALAR | G_NOARGS);
768 sv = sentinel_mortalize(sen, SvREFCNT_inc(POPs));
778 PARAM_INVOCANT = 0x01,
782 /* *pinit must be NULL on entry.
783 * caller must free *pinit on error.
785 static PADOFFSET parse_param(
788 const SV *declarator, const KWSpec *spec, ParamSpec *param_spec,
789 int *pflags, SV **pname, OP **pinit, SV **ptype
799 c = lex_peek_unichar(0);
801 if (spec->flags & FLAG_TYPES_OK) {
805 Resource *expr_sentinel;
809 floor = start_subparse(FALSE, 0);
810 SAVEFREESV(PL_compcv);
811 CvSPECIAL_on(PL_compcv);
813 if (!(expr = parse_fullexpr(PARSE_OPTIONAL))) {
814 croak("In %"SVf": invalid type expression", SVfARG(declarator));
816 expr_sentinel = sentinel_register(sen, expr, free_op_void);
819 c = lex_peek_unichar(0);
821 croak("In %"SVf": missing ')' after type expression", SVfARG(declarator));
826 SvREFCNT_inc_simple_void(PL_compcv);
827 sentinel_disarm(expr_sentinel);
828 *ptype = my_eval(aTHX_ sen, floor, expr);
829 *ptype = reify_type(aTHX_ sen, declarator, *ptype);
830 if (!sv_isobject(*ptype)) {
831 croak("In %"SVf": (%"SVf") doesn't look like a type object", SVfARG(declarator), SVfARG(*ptype));
834 c = lex_peek_unichar(0);
835 } else if (my_is_uni_xidfirst(aTHX_ c)) {
836 *ptype = parse_type(aTHX_ sen, declarator);
837 my_require(aTHX_ "Moose/Util/TypeConstraints.pm");
838 *ptype = reify_type(aTHX_ sen, declarator, *ptype);
840 c = lex_peek_unichar(0);
848 *pflags |= PARAM_NAMED;
850 c = lex_peek_unichar(0);
854 croak("In %"SVf": unterminated parameter list", SVfARG(declarator));
857 if (!(c == '$' || c == '@' || c == '%')) {
858 croak("In %"SVf": unexpected '%c' in parameter list (expecting a sigil)", SVfARG(declarator), (int)c);
866 if (!(name = my_scan_word(aTHX_ sen, FALSE))) {
867 croak("In %"SVf": missing identifier after '%c'", SVfARG(declarator), sigil);
869 sv_insert(name, 0, 0, &sigil, 1);
873 c = lex_peek_unichar(0);
880 if (!param_spec->invocant.name && SvTRUE(spec->shift)) {
881 param_spec->invocant.name = spec->shift;
882 param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL);
885 *pinit = parse_termexpr(0);
888 c = lex_peek_unichar(0);
892 *pflags |= PARAM_INVOCANT;
895 } else if (c == ',') {
898 } else if (c != ')') {
900 croak("In %"SVf": unterminated parameter list", SVfARG(declarator));
902 croak("In %"SVf": unexpected '%c' in parameter list (expecting ',')", SVfARG(declarator), (int)c);
905 return pad_add_name_sv(*pname, IF_HAVE_PERL_5_16(padadd_NO_DUP_CHECK, 0), NULL, NULL);
908 static OP *my_var_g(pTHX_ I32 type, I32 flags, PADOFFSET padoff) {
909 OP *var = newOP(type, flags);
910 var->op_targ = padoff;
914 static OP *my_var(pTHX_ I32 flags, PADOFFSET padoff) {
915 return my_var_g(aTHX_ OP_PADSV, flags, padoff);
918 static OP *mkhvelem(pTHX_ PADOFFSET h, OP *k) {
919 OP *hv = my_var_g(aTHX_ OP_PADHV, OPf_REF, h);
920 return newBINOP(OP_HELEM, 0, hv, k);
923 static OP *mkconstsv(pTHX_ SV *sv) {
924 return newSVOP(OP_CONST, 0, sv);
927 static OP *mkconstiv(pTHX_ IV i) {
928 return mkconstsv(aTHX_ newSViv(i));
931 static OP *mkconstpv(pTHX_ const char *p, size_t n) {
932 return mkconstsv(aTHX_ newSVpv(p, n));
935 #define mkconstpvs(S) mkconstpv(aTHX_ "" S "", sizeof S - 1)
937 static OP *mktypecheck(pTHX_ const SV *declarator, int nr, SV *name, PADOFFSET padoff, SV *type) {
938 /* $type->check($value) or Carp::croak "...: " . $type->get_message($value) */
939 OP *chk, *err, *msg, *xcroak;
941 err = mkconstsv(aTHX_ newSVpvf("In %"SVf": parameter %d (%"SVf"): ", SVfARG(declarator), nr, SVfARG(name)));
945 args = op_append_elem(OP_LIST, args, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(type)));
946 args = op_append_elem(
950 : my_var(aTHX_ 0, padoff)
952 args = op_append_elem(OP_LIST, args, newUNOP(OP_METHOD, 0, mkconstpvs("get_message")));
955 msg->op_type = OP_ENTERSUB;
956 msg->op_ppaddr = PL_ppaddr[OP_ENTERSUB];
957 msg->op_flags |= OPf_STACKED;
960 msg = newBINOP(OP_CONCAT, 0, err, msg);
964 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
966 xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak));
971 args = op_append_elem(OP_LIST, args, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(type)));
972 args = op_append_elem(
976 : my_var(aTHX_ 0, padoff)
978 args = op_append_elem(OP_LIST, args, newUNOP(OP_METHOD, 0, mkconstpvs("check")));
981 chk->op_type = OP_ENTERSUB;
982 chk->op_ppaddr = PL_ppaddr[OP_ENTERSUB];
983 chk->op_flags |= OPf_STACKED;
986 chk = newLOGOP(OP_OR, 0, chk, xcroak);
990 static OP *mktypecheckp(pTHX_ const SV *declarator, int nr, const Param *param) {
991 return mktypecheck(aTHX_ declarator, nr, param->name, param->padoff, param->type);
994 static void register_info(pTHX_ UV key, SV *declarator, const KWSpec *kws, const ParamSpec *ps) {
1008 char *p = SvPV(declarator, n);
1009 char *q = memchr(p, ' ', n);
1010 mPUSHp(p, q ? (size_t)(q - p) : n);
1013 if (SvTRUE(kws->shift)) {
1019 mPUSHs(newRV_noinc((SV *)newAV()));
1020 mPUSHs(newRV_noinc((SV *)newAV()));
1021 mPUSHs(newRV_noinc((SV *)newAV()));
1022 mPUSHs(newRV_noinc((SV *)newAV()));
1027 if (ps->invocant.name) {
1028 PUSHs(ps->invocant.name);
1029 if (ps->invocant.type) {
1030 PUSHs(ps->invocant.type);
1043 lim = ps->positional_required.used;
1047 av_extend(av, (lim - 1) * 2);
1048 for (i = 0; i < lim; i++) {
1049 Param *cur = &ps->positional_required.data[i];
1050 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1051 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1055 mPUSHs(newRV_noinc((SV *)av));
1061 lim = ps->positional_optional.used;
1065 av_extend(av, (lim - 1) * 2);
1066 for (i = 0; i < lim; i++) {
1067 Param *cur = &ps->positional_optional.data[i].param;
1068 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1069 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1073 mPUSHs(newRV_noinc((SV *)av));
1079 lim = ps->named_required.used;
1083 av_extend(av, (lim - 1) * 2);
1084 for (i = 0; i < lim; i++) {
1085 Param *cur = &ps->named_required.data[i];
1086 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1087 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1091 mPUSHs(newRV_noinc((SV *)av));
1097 lim = ps->named_optional.used;
1101 av_extend(av, (lim - 1) * 2);
1102 for (i = 0; i < lim; i++) {
1103 Param *cur = &ps->named_optional.data[i].param;
1104 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1105 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1109 mPUSHs(newRV_noinc((SV *)av));
1112 if (ps->slurpy.name) {
1113 PUSHs(ps->slurpy.name);
1114 if (ps->slurpy.type) {
1115 PUSHs(ps->slurpy.type);
1127 call_pv(MY_PKG "::_register_info", G_VOID);
1133 static int parse_fun(pTHX_ Sentinel sen, OP **pop, const char *keyword_ptr, STRLEN keyword_len, const KWSpec *spec) {
1134 ParamSpec *param_spec;
1139 OP **prelude_sentinel;
1141 OP **attrs_sentinel, *body;
1142 unsigned builtin_attrs;
1145 declarator = sentinel_mortalize(sen, newSVpvn(keyword_ptr, keyword_len));
1153 if ((spec->flags & FLAG_NAME_OK) && (saw_name = my_scan_word(aTHX_ sen, TRUE))) {
1155 if (PL_parser->expect != XSTATE) {
1156 /* bail out early so we don't predeclare $saw_name */
1157 croak("In %"SVf": I was expecting a function body, not \"%"SVf"\"", SVfARG(declarator), SVfARG(saw_name));
1160 sv_catpvs(declarator, " ");
1161 sv_catsv(declarator, saw_name);
1164 sv_eq_pvs(saw_name, "BEGIN") ||
1165 sv_eq_pvs(saw_name, "END") ||
1166 sv_eq_pvs(saw_name, "INIT") ||
1167 sv_eq_pvs(saw_name, "CHECK") ||
1168 sv_eq_pvs(saw_name, "UNITCHECK")
1170 builtin_attrs |= MY_ATTR_SPECIAL;
1174 } else if (!(spec->flags & FLAG_ANON_OK)) {
1175 croak("I was expecting a function name, not \"%.*s\"", (int)(PL_parser->bufend - PL_parser->bufptr), PL_parser->bufptr);
1177 sv_catpvs(declarator, " (anon)");
1180 /* we're a subroutine declaration */
1181 floor_ix = start_subparse(FALSE, saw_name ? 0 : CVf_ANON);
1182 SAVEFREESV(PL_compcv);
1184 /* create outer block: '{' */
1185 save_ix = S_block_start(aTHX_ TRUE);
1187 /* initialize synthetic optree */
1188 Newx(prelude_sentinel, 1, OP *);
1189 *prelude_sentinel = NULL;
1190 sentinel_register(sen, prelude_sentinel, free_ptr_op_void);
1195 c = lex_peek_unichar(0);
1199 Newx(init_sentinel, 1, OP *);
1200 *init_sentinel = NULL;
1201 sentinel_register(sen, init_sentinel, free_ptr_op_void);
1203 Newx(param_spec, 1, ParamSpec);
1204 ps_init(param_spec);
1205 sentinel_register(sen, param_spec, ps_free_void);
1207 lex_read_unichar(0);
1210 while ((c = lex_peek_unichar(0)) != ')') {
1216 padoff = parse_param(aTHX_ sen, declarator, spec, param_spec, &flags, &name, init_sentinel, &type);
1220 sigil = SvPV_nolen(name)[0];
1222 /* internal consistency */
1223 if (flags & PARAM_NAMED) {
1224 if (flags & PARAM_INVOCANT) {
1225 croak("In %"SVf": invocant %"SVf" can't be a named parameter", SVfARG(declarator), SVfARG(name));
1228 croak("In %"SVf": named parameter %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash");
1230 } else if (flags & PARAM_INVOCANT) {
1231 if (*init_sentinel) {
1232 croak("In %"SVf": invocant %"SVf" can't have a default value", SVfARG(declarator), SVfARG(name));
1235 croak("In %"SVf": invocant %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash");
1237 } else if (sigil != '$' && *init_sentinel) {
1238 croak("In %"SVf": %s %"SVf" can't have a default value", SVfARG(declarator), sigil == '@' ? "array" : "hash", SVfARG(name));
1241 /* external constraints */
1242 if (param_spec->slurpy.name) {
1243 croak("In %"SVf": I was expecting \")\" after \"%"SVf"\", not \"%"SVf"\"", SVfARG(declarator), SVfARG(param_spec->slurpy.name), SVfARG(name));
1246 assert(!*init_sentinel);
1247 param_spec->slurpy.name = name;
1248 param_spec->slurpy.padoff = padoff;
1249 param_spec->slurpy.type = type;
1253 if (!(flags & PARAM_NAMED) && count_named_params(param_spec)) {
1254 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));
1257 if (flags & PARAM_INVOCANT) {
1258 if (param_spec->invocant.name) {
1259 croak("In %"SVf": invalid double invocants %"SVf", %"SVf"", SVfARG(declarator), SVfARG(param_spec->invocant.name), SVfARG(name));
1261 if (count_positional_params(param_spec) || count_named_params(param_spec)) {
1262 croak("In %"SVf": invocant %"SVf" must be first in parameter list", SVfARG(declarator), SVfARG(name));
1264 if (!(spec->flags & FLAG_INVOCANT)) {
1265 croak("In %"SVf": invocant %"SVf" not allowed here", SVfARG(declarator), SVfARG(name));
1267 param_spec->invocant.name = name;
1268 param_spec->invocant.padoff = padoff;
1269 param_spec->invocant.type = type;
1273 if (*init_sentinel && !(spec->flags & FLAG_DEFAULT_ARGS)) {
1274 croak("In %"SVf": default argument for %"SVf" not allowed here", SVfARG(declarator), SVfARG(name));
1277 if (ps_contains(aTHX_ param_spec, name)) {
1278 croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(name));
1281 if (flags & PARAM_NAMED) {
1282 if (!(spec->flags & FLAG_NAMED_PARAMS)) {
1283 croak("In %"SVf": named parameter :%"SVf" not allowed here", SVfARG(declarator), SVfARG(name));
1286 if (*init_sentinel) {
1287 ParamInit *pi = piv_extend(¶m_spec->named_optional);
1288 pi->param.name = name;
1289 pi->param.padoff = padoff;
1290 pi->param.type = type;
1291 pi->init = *init_sentinel;
1292 *init_sentinel = NULL;
1293 param_spec->named_optional.used++;
1297 if (param_spec->positional_optional.used) {
1298 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));
1301 p = pv_extend(¶m_spec->named_required);
1305 param_spec->named_required.used++;
1308 if (*init_sentinel || param_spec->positional_optional.used) {
1309 ParamInit *pi = piv_extend(¶m_spec->positional_optional);
1310 pi->param.name = name;
1311 pi->param.padoff = padoff;
1312 pi->param.type = type;
1313 pi->init = *init_sentinel;
1314 *init_sentinel = NULL;
1315 param_spec->positional_optional.used++;
1317 Param *p = pv_extend(¶m_spec->positional_required);
1321 param_spec->positional_required.used++;
1326 lex_read_unichar(0);
1328 *init_sentinel = NULL;
1330 if (!param_spec->invocant.name && SvTRUE(spec->shift)) {
1331 if (ps_contains(aTHX_ param_spec, spec->shift)) {
1332 croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(spec->shift));
1335 param_spec->invocant.name = spec->shift;
1336 param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL);
1342 c = lex_peek_unichar(0);
1344 lex_read_unichar(0);
1347 c = lex_peek_unichar(0);
1349 lex_stuff_pvs(":", 0);
1352 lex_read_unichar(0);
1353 if (!(proto = my_scan_parens_tail(aTHX_ sen, FALSE))) {
1354 croak("In %"SVf": prototype not terminated", SVfARG(declarator));
1356 my_check_prototype(aTHX_ sen, declarator, proto);
1358 c = lex_peek_unichar(0);
1359 if (!(c == ':' || c == '{')) {
1360 lex_stuff_pvs(":", 0);
1367 Newx(attrs_sentinel, 1, OP *);
1368 *attrs_sentinel = NULL;
1369 sentinel_register(sen, attrs_sentinel, free_ptr_op_void);
1371 if (c == ':' || c == '{') /* '}' - hi, vim */ {
1373 /* kludge default attributes in */
1374 if (SvTRUE(spec->attrs) && SvPV_nolen(spec->attrs)[0] == ':') {
1375 lex_stuff_sv(spec->attrs, 0);
1380 lex_read_unichar(0);
1382 c = lex_peek_unichar(0);
1387 if (!(attr = my_scan_word(aTHX_ sen, FALSE))) {
1392 c = lex_peek_unichar(0);
1395 if (sv_eq_pvs(attr, "lvalue")) {
1396 builtin_attrs |= MY_ATTR_LVALUE;
1398 } else if (sv_eq_pvs(attr, "method")) {
1399 builtin_attrs |= MY_ATTR_METHOD;
1404 lex_read_unichar(0);
1405 if (!(sv = my_scan_parens_tail(aTHX_ sen, TRUE))) {
1406 croak("In %"SVf": unterminated attribute parameter in attribute list", SVfARG(declarator));
1408 sv_catpvs(attr, "(");
1410 sv_catpvs(attr, ")");
1413 c = lex_peek_unichar(0);
1417 *attrs_sentinel = op_append_elem(OP_LIST, *attrs_sentinel, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(attr)));
1421 lex_read_unichar(0);
1423 c = lex_peek_unichar(0);
1430 if (c != '{') /* '}' - hi, vim */ {
1431 croak("In %"SVf": I was expecting a function body, not \"%c\"", SVfARG(declarator), (int)c);
1434 /* surprise predeclaration! */
1436 /* 'sub NAME (PROTO);' to make name/proto known to perl before it
1437 starts parsing the body */
1438 const I32 sub_ix = start_subparse(FALSE, 0);
1439 SAVEFREESV(PL_compcv);
1441 SvREFCNT_inc_simple_void(PL_compcv);
1445 mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(saw_name)),
1446 proto ? mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(proto)) : NULL,
1452 if (builtin_attrs & MY_ATTR_LVALUE) {
1453 CvLVALUE_on(PL_compcv);
1455 if (builtin_attrs & MY_ATTR_METHOD) {
1456 CvMETHOD_on(PL_compcv);
1458 if (builtin_attrs & MY_ATTR_SPECIAL) {
1459 CvSPECIAL_on(PL_compcv);
1462 /* check number of arguments */
1463 if (spec->flags & FLAG_CHECK_NARGS) {
1466 amin = args_min(aTHX_ param_spec, spec);
1468 OP *chk, *cond, *err, *xcroak;
1470 err = mkconstsv(aTHX_ newSVpvf("Not enough arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amin));
1474 newAVREF(newGVOP(OP_GV, 0, PL_defgv))
1482 xcroak = newCVREF(OPf_WANT_SCALAR,
1483 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)));
1484 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
1485 op_append_elem(OP_LIST, err, xcroak));
1487 cond = newBINOP(OP_LT, 0,
1488 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1489 mkconstiv(aTHX_ amin));
1490 chk = newLOGOP(OP_AND, 0, cond, err);
1492 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk));
1495 amax = args_max(param_spec);
1497 OP *chk, *cond, *err, *xcroak;
1499 err = mkconstsv(aTHX_ newSVpvf("Too many arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amax));
1503 newAVREF(newGVOP(OP_GV, 0, PL_defgv))
1513 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1515 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
1516 op_append_elem(OP_LIST, err, xcroak));
1520 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1521 mkconstiv(aTHX_ amax)
1523 chk = newLOGOP(OP_AND, 0, cond, err);
1525 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk));
1528 if (param_spec && (count_named_params(param_spec) || (param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%'))) {
1529 OP *chk, *cond, *err, *xcroak;
1530 const UV fixed = count_positional_params(param_spec) + !!param_spec->invocant.name;
1532 err = mkconstsv(aTHX_ newSVpvf("Odd number of paired arguments for %"SVf"", SVfARG(declarator)));
1536 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1538 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
1539 op_append_elem(OP_LIST, err, xcroak));
1541 cond = newBINOP(OP_GT, 0,
1542 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1543 mkconstiv(aTHX_ fixed));
1544 cond = newLOGOP(OP_AND, 0,
1546 newBINOP(OP_MODULO, 0,
1548 ? newBINOP(OP_SUBTRACT, 0,
1549 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1550 mkconstiv(aTHX_ fixed))
1551 : newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1552 mkconstiv(aTHX_ 2)));
1553 chk = newLOGOP(OP_AND, 0, cond, err);
1555 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk));
1560 /* my $invocant = shift; */
1561 if (SvTRUE(spec->shift)) {
1566 OPf_MOD | (OPpLVAL_INTRO << 8),
1567 pad_add_name_sv(spec->shift, 0, NULL, NULL)
1569 var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0));
1571 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1574 /* my $invocant = shift; */
1575 if (param_spec->invocant.name) {
1580 OPf_MOD | (OPpLVAL_INTRO << 8),
1581 param_spec->invocant.padoff
1583 var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0));
1585 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1587 if (param_spec->invocant.type && (spec->flags & FLAG_CHECK_TARGS)) {
1588 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, 0, ¶m_spec->invocant)));
1592 /* my (...) = @_; */
1599 for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) {
1600 OP *const var = my_var(
1602 OPf_WANT_LIST | (OPpLVAL_INTRO << 8),
1603 param_spec->positional_required.data[i].padoff
1605 lhs = op_append_elem(OP_LIST, lhs, var);
1608 for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) {
1609 OP *const var = my_var(
1611 OPf_WANT_LIST | (OPpLVAL_INTRO << 8),
1612 param_spec->positional_optional.data[i].param.padoff
1614 lhs = op_append_elem(OP_LIST, lhs, var);
1624 * 1) no named params
1631 * => synthetic %{rest}
1632 * 2.2) slurpy is a hash
1634 * 2.3) slurpy is an array
1635 * => synthetic %{rest}
1636 * remember to declare array later
1639 slurpy_hash = param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%';
1640 if (!count_named_params(param_spec)) {
1641 if (param_spec->slurpy.name) {
1642 padoff = param_spec->slurpy.padoff;
1643 type = slurpy_hash ? OP_PADHV : OP_PADAV;
1645 padoff = NOT_IN_PAD;
1648 } else if (slurpy_hash) {
1649 padoff = param_spec->slurpy.padoff;
1652 padoff = param_spec->rest_hash = pad_add_name_pvs("%{rest}", 0, NULL, NULL);
1656 if (padoff != NOT_IN_PAD) {
1657 OP *const var = my_var_g(
1660 OPf_WANT_LIST | (OPpLVAL_INTRO << 8),
1664 lhs = op_append_elem(OP_LIST, lhs, var);
1666 if (type == OP_PADHV) {
1667 param_spec->rest_hash = padoff;
1674 lhs->op_flags |= OPf_PARENS;
1675 rhs = newAVREF(newGVOP(OP_GV, 0, PL_defgv));
1677 *prelude_sentinel = op_append_list(
1678 OP_LINESEQ, *prelude_sentinel,
1681 newASSIGNOP(OPf_STACKED, lhs, 0, rhs)
1687 /* default positional arguments */
1694 req = param_spec->positional_required.used;
1695 for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) {
1696 ParamInit *cur = ¶m_spec->positional_optional.data[i];
1701 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1702 mkconstiv(aTHX_ req + i + 1)
1705 var = my_var(aTHX_ 0, cur->param.padoff);
1707 nest = op_append_list(
1709 newASSIGNOP(OPf_STACKED, var, 0, cur->init)
1720 *prelude_sentinel = op_append_list(
1721 OP_LINESEQ, *prelude_sentinel,
1726 /* named parameters */
1727 if (count_named_params(param_spec)) {
1730 assert(param_spec->rest_hash != NOT_IN_PAD);
1732 for (i = 0, lim = param_spec->named_required.used; i < lim; i++) {
1733 Param *cur = ¶m_spec->named_required.data[i];
1735 char *p = SvPV(cur->name, n);
1738 cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1740 if (spec->flags & FLAG_CHECK_NARGS) {
1743 var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1744 var = newUNOP(OP_DELETE, 0, var);
1746 msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": missing named parameter: %.*s", SVfARG(declarator), (int)(n - 1), p + 1));
1749 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1751 xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak));
1753 cond = newUNOP(OP_EXISTS, 0, cond);
1755 cond = newCONDOP(0, cond, var, xcroak);
1760 OPf_MOD | (OPpLVAL_INTRO << 8),
1763 var = newASSIGNOP(OPf_STACKED, var, 0, cond);
1765 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1768 for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) {
1769 ParamInit *cur = ¶m_spec->named_optional.data[i];
1771 char *p = SvPV(cur->param.name, n);
1774 var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1775 var = newUNOP(OP_DELETE, 0, var);
1777 cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1778 cond = newUNOP(OP_EXISTS, 0, cond);
1780 cond = newCONDOP(0, cond, var, cur->init);
1785 OPf_MOD | (OPpLVAL_INTRO << 8),
1788 var = newASSIGNOP(OPf_STACKED, var, 0, cond);
1790 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1793 if (!param_spec->slurpy.name) {
1794 if (spec->flags & FLAG_CHECK_NARGS) {
1795 /* croak if %{rest} */
1796 OP *xcroak, *cond, *keys, *msg;
1798 keys = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash));
1799 keys = newLISTOP(OP_SORT, 0, newOP(OP_PUSHMARK, 0), keys);
1801 OP *first, *mid, *last;
1805 mid = mkconstpvs(", ");
1806 mid->op_sibling = last;
1808 first = newOP(OP_PUSHMARK, 0);
1810 keys = newLISTOP(OP_JOIN, 0, first, mid);
1811 keys->op_targ = pad_alloc(OP_JOIN, SVs_PADTMP);
1812 ((LISTOP *)keys)->op_last = last;
1815 msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": no such named parameter: ", SVfARG(declarator)));
1816 msg = newBINOP(OP_CONCAT, 0, msg, keys);
1820 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1822 xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak));
1824 cond = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash));
1825 xcroak = newCONDOP(0, cond, xcroak, NULL);
1827 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, xcroak));
1831 clear = newASSIGNOP(
1833 my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash),
1838 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, clear));
1840 } else if (param_spec->slurpy.padoff != param_spec->rest_hash) {
1843 assert(SvPV_nolen(param_spec->slurpy.name)[0] == '@');
1848 OPf_MOD | (OPpLVAL_INTRO << 8),
1849 param_spec->slurpy.padoff
1852 var = newASSIGNOP(OPf_STACKED, var, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash));
1854 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1856 clear = newASSIGNOP(
1858 my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash),
1863 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, clear));
1867 if (spec->flags & FLAG_CHECK_TARGS) {
1868 size_t i, lim, base;
1871 for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) {
1872 Param *cur = ¶m_spec->positional_required.data[i];
1875 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur)));
1880 for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) {
1881 Param *cur = ¶m_spec->positional_optional.data[i].param;
1884 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur)));
1889 for (i = 0, lim = param_spec->named_required.used; i < lim; i++) {
1890 Param *cur = ¶m_spec->named_required.data[i];
1893 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur)));
1898 for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) {
1899 Param *cur = ¶m_spec->named_optional.data[i].param;
1902 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur)));
1907 if (param_spec->slurpy.type) {
1908 /* $type->valid($_) or croak $type->get_message($_) for @rest / values %rest */
1909 OP *check, *list, *loop;
1911 check = mktypecheck(aTHX_ declarator, base, param_spec->slurpy.name, NOT_IN_PAD, param_spec->slurpy.type);
1913 if (SvPV_nolen(param_spec->slurpy.name)[0] == '@') {
1914 list = my_var_g(aTHX_ OP_PADAV, 0, param_spec->slurpy.padoff);
1916 list = my_var_g(aTHX_ OP_PADHV, 0, param_spec->slurpy.padoff);
1917 list = newUNOP(OP_VALUES, 0, list);
1920 loop = newFOROP(0, NULL, list, check, NULL);
1922 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, loop));
1927 /* finally let perl parse the actual subroutine body */
1928 body = parse_block(0);
1930 /* add '();' to make function return nothing by default */
1931 /* (otherwise the invisible parameter initialization can "leak" into
1932 the return value: fun ($x) {}->("asdf", 0) == 2) */
1933 if (*prelude_sentinel) {
1934 body = newSTATEOP(0, NULL, body);
1937 body = op_append_list(OP_LINESEQ, *prelude_sentinel, body);
1938 *prelude_sentinel = NULL;
1943 OP *const attrs = *attrs_sentinel;
1944 *attrs_sentinel = NULL;
1946 SvREFCNT_inc_simple_void(PL_compcv);
1948 /* close outer block: '}' */
1949 S_block_end(aTHX_ save_ix, body);
1953 saw_name ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(saw_name)) : NULL,
1954 proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL,
1959 register_info(aTHX_ PTR2UV(CvROOT(cv)), declarator, spec, param_spec);
1962 *pop = newOP(OP_NULL, 0);
1963 return KEYWORD_PLUGIN_STMT;
1973 return KEYWORD_PLUGIN_EXPR;
1977 static int my_keyword_plugin(pTHX_ char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) {
1980 Sentinel sen = { NULL };
1985 SAVEDESTRUCTOR_X(sentinel_clear_void, sen);
1987 if (kw_flags(aTHX_ sen, keyword_ptr, keyword_len, &spec)) {
1988 ret = parse_fun(aTHX_ sen, op_ptr, keyword_ptr, keyword_len, &spec);
1990 ret = next_keyword_plugin(aTHX_ keyword_ptr, keyword_len, op_ptr);
2001 MODULE = Function::Parameters PACKAGE = Function::Parameters PREFIX = fp_
2012 xcv = sv_2cv(sv, &hv, &gv, 0);
2013 RETVAL = PTR2UV(xcv ? CvROOT(xcv) : NULL);
2019 HV *const stash = gv_stashpvs(MY_PKG, GV_ADD);
2021 newCONSTSUB(stash, "FLAG_NAME_OK", newSViv(FLAG_NAME_OK));
2022 newCONSTSUB(stash, "FLAG_ANON_OK", newSViv(FLAG_ANON_OK));
2023 newCONSTSUB(stash, "FLAG_DEFAULT_ARGS", newSViv(FLAG_DEFAULT_ARGS));
2024 newCONSTSUB(stash, "FLAG_CHECK_NARGS", newSViv(FLAG_CHECK_NARGS));
2025 newCONSTSUB(stash, "FLAG_INVOCANT", newSViv(FLAG_INVOCANT));
2026 newCONSTSUB(stash, "FLAG_NAMED_PARAMS", newSViv(FLAG_NAMED_PARAMS));
2027 newCONSTSUB(stash, "FLAG_TYPES_OK", newSViv(FLAG_TYPES_OK));
2028 newCONSTSUB(stash, "FLAG_CHECK_TARGS", newSViv(FLAG_CHECK_TARGS));
2029 newCONSTSUB(stash, "HINTK_KEYWORDS", newSVpvs(HINTK_KEYWORDS));
2030 newCONSTSUB(stash, "HINTK_FLAGS_", newSVpvs(HINTK_FLAGS_));
2031 newCONSTSUB(stash, "HINTK_SHIFT_", newSVpvs(HINTK_SHIFT_));
2032 newCONSTSUB(stash, "HINTK_ATTRS_", newSVpvs(HINTK_ATTRS_));
2034 next_keyword_plugin = PL_keyword_plugin;
2035 PL_keyword_plugin = my_keyword_plugin;