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 void my_safefree(void *p) {
164 #define SENTINEL_ALLOC(SEN, P, N, T) STMT_START { \
166 sentinel_register(SEN, P, my_safefree); \
169 #define SENTINEL_MDUP(SEN, P, O, N, T) STMT_START { \
170 void *const _sentinel_mdup_tmp_ = (P); \
171 SENTINEL_ALLOC(SEN, P, N, T); \
172 memcpy(P, _sentinel_mdup_tmp_, O * sizeof (T)); \
175 #define SENTINEL_REALLOC(SEN, P, N, T) STMT_START { \
178 SENTINEL_ALLOC(SEN, P, N, T); \
180 Resource **_sentinel_realloc_tmp_ = (SEN); \
182 assert(*_sentinel_realloc_tmp_ != NULL); \
183 if ((*_sentinel_realloc_tmp_)->data == (P)) { \
184 Renew((*_sentinel_realloc_tmp_)->data, N, T); \
185 (P) = (*_sentinel_realloc_tmp_)->data; \
188 _sentinel_realloc_tmp_ = &(*_sentinel_realloc_tmp_)->next; \
193 static int kw_flags(pTHX_ Sentinel sen, const char *kw_ptr, STRLEN kw_len, KWSpec *spec) {
196 const char *p, *kw_active;
197 STRLEN kw_active_len;
200 spec->shift = sentinel_mortalize(sen, newSVpvs(""));
201 spec->attrs = sentinel_mortalize(sen, newSVpvs(""));
203 if (!(hints = GvHV(PL_hintgv))) {
206 if (!(psv = hv_fetchs(hints, HINTK_KEYWORDS, 0))) {
210 kw_active = SvPV(sv, kw_active_len);
211 if (kw_active_len <= kw_len) {
216 (p = strchr(p, *kw_ptr)) &&
217 p < kw_active + kw_active_len - kw_len;
221 (p == kw_active || p[-1] == ' ') &&
223 memcmp(kw_ptr, p, kw_len) == 0
226 #define FETCH_HINTK_INTO(NAME, PTR, LEN, X) STMT_START { \
227 const char *fk_ptr_; \
230 fk_sv_ = sentinel_mortalize(sen, newSVpvs(HINTK_ ## NAME)); \
231 sv_catpvn(fk_sv_, PTR, LEN); \
232 fk_ptr_ = SvPV(fk_sv_, fk_len_); \
233 if (!((X) = hv_fetch(hints, fk_ptr_, fk_len_, 0))) { \
234 croak("%s: internal error: $^H{'%.*s'} not set", MY_PKG, (int)fk_len_, fk_ptr_); \
238 FETCH_HINTK_INTO(FLAGS_, kw_ptr, kw_len, psv);
239 spec->flags = SvIV(*psv);
241 FETCH_HINTK_INTO(SHIFT_, kw_ptr, kw_len, psv);
242 SvSetSV(spec->shift, *psv);
244 FETCH_HINTK_INTO(ATTRS_, kw_ptr, kw_len, psv);
245 SvSetSV(spec->attrs, *psv);
247 #undef FETCH_HINTK_INTO
255 static void free_ptr_op_void(pTHX_ void *vp) {
261 static void free_op_void(pTHX_ void *vp) {
266 #define sv_eq_pvs(SV, S) my_sv_eq_pvn(aTHX_ SV, "" S "", sizeof (S) - 1)
268 static int my_sv_eq_pvn(pTHX_ SV *sv, const char *p, STRLEN n) {
270 const char *sv_p = SvPV(sv, sv_len);
271 return memcmp(sv_p, p, n) == 0;
275 #include "padop_on_crack.c.inc"
279 MY_ATTR_LVALUE = 0x01,
280 MY_ATTR_METHOD = 0x02,
281 MY_ATTR_SPECIAL = 0x04
284 static void my_sv_cat_c(pTHX_ SV *sv, U32 c) {
285 char ds[UTF8_MAXBYTES + 1], *d;
286 d = uvchr_to_utf8(ds, c);
290 sv_catpvn(sv, ds, d - ds);
293 static bool my_is_uni_xidfirst(pTHX_ UV c) {
294 U8 tmpbuf[UTF8_MAXBYTES + 1];
295 uvchr_to_utf8(tmpbuf, c);
296 return is_utf8_xidfirst(tmpbuf);
299 static bool my_is_uni_xidcont(pTHX_ UV c) {
300 U8 tmpbuf[UTF8_MAXBYTES + 1];
301 uvchr_to_utf8(tmpbuf, c);
302 return is_utf8_xidcont(tmpbuf);
305 static SV *my_scan_word(pTHX_ Sentinel sen, bool allow_package) {
306 bool at_start, at_substart;
308 SV *sv = sentinel_mortalize(sen, newSVpvs(""));
313 at_start = at_substart = TRUE;
314 c = lex_peek_unichar(0);
317 if (at_substart ? my_is_uni_xidfirst(aTHX_ c) : my_is_uni_xidcont(aTHX_ c)) {
319 my_sv_cat_c(aTHX_ sv, c);
321 c = lex_peek_unichar(0);
322 } else if (allow_package && !at_substart && c == '\'') {
324 c = lex_peek_unichar(0);
325 if (!my_is_uni_xidfirst(aTHX_ c)) {
326 lex_stuff_pvs("'", 0);
331 } else if (allow_package && (at_start || !at_substart) && c == ':') {
333 if (lex_peek_unichar(0) != ':') {
334 lex_stuff_pvs(":", 0);
338 c = lex_peek_unichar(0);
339 if (!my_is_uni_xidfirst(aTHX_ c)) {
340 lex_stuff_pvs("::", 0);
351 return SvCUR(sv) ? sv : NULL;
354 static SV *my_scan_parens_tail(pTHX_ Sentinel sen, bool keep_backslash) {
359 start = CopLINE(PL_curcop);
361 sv = sentinel_mortalize(sen, newSVpvs(""));
368 c = lex_read_unichar(0);
370 CopLINE_set(PL_curcop, start);
375 c = lex_read_unichar(0);
377 CopLINE_set(PL_curcop, start);
380 if (keep_backslash || (c != '(' && c != ')')) {
383 } else if (c == '(') {
385 } else if (c == ')') {
392 my_sv_cat_c(aTHX_ sv, c);
398 static void my_check_prototype(pTHX_ Sentinel sen, const SV *declarator, SV *proto) {
399 char *start, *r, *w, *end;
403 start = SvPV(proto, len);
406 for (w = r = start; r < end; r++) {
412 SvCUR_set(proto, w - start);
416 if (!ckWARN(WARN_ILLEGALPROTO)) {
420 /* check for bad characters */
421 if (strspn(start, "$@%*;[]&\\_+") != len) {
422 SV *dsv = sentinel_mortalize(sen, newSVpvs(""));
424 packWARN(WARN_ILLEGALPROTO),
425 "Illegal character in prototype for %"SVf" : %s",
434 : pv_pretty(dsv, start, len, 60, NULL, NULL,
435 PERL_PV_ESCAPE_NONASCII
441 for (r = start; r < end; r++) {
445 packWARN(WARN_ILLEGALPROTO),
446 "Illegal character in prototype for %"SVf" : %s",
447 SVfARG(declarator), r
452 if (r[1] && !strchr(";@%", *r)) {
454 packWARN(WARN_ILLEGALPROTO),
455 "Illegal character after '_' in prototype for %"SVf" : %s",
456 SVfARG(declarator), r
466 packWARN(WARN_ILLEGALPROTO),
467 "prototype after '%c' for %"SVf": %s",
468 *r, SVfARG(declarator), r + 1
476 if (strchr("$@%&*", *r)) {
481 for (; r < end && *r != ']'; r++) {
482 if (!strchr("$@%&*", *r)) {
486 if (*r == ']' && r[-1] != '[') {
491 packWARN(WARN_ILLEGALPROTO),
492 "Illegal character after '\\' in prototype for %"SVf" : %s",
493 SVfARG(declarator), r
507 static SV *parse_type(pTHX_ Sentinel, const SV *);
509 static SV *parse_type_paramd(pTHX_ Sentinel sen, const SV *declarator) {
513 t = my_scan_word(aTHX_ sen, TRUE);
516 c = lex_peek_unichar(0);
522 my_sv_cat_c(aTHX_ t, c);
524 u = parse_type(aTHX_ sen, declarator);
527 c = lex_peek_unichar(0);
529 croak("In %"SVf": missing ']' after '%"SVf"'", SVfARG(declarator), SVfARG(t));
534 my_sv_cat_c(aTHX_ t, c);
540 static SV *parse_type(pTHX_ Sentinel sen, const SV *declarator) {
544 t = parse_type_paramd(aTHX_ sen, declarator);
546 c = lex_peek_unichar(0);
553 my_sv_cat_c(aTHX_ t, c);
554 u = parse_type_paramd(aTHX_ sen, declarator);
557 c = lex_peek_unichar(0);
563 static SV *reify_type(pTHX_ Sentinel sen, const SV *declarator, SV *name) {
576 n = call_pv("Moose::Util::TypeConstraints::find_or_parse_type_constraint", G_SCALAR);
580 t = sentinel_mortalize(sen, SvREFCNT_inc(POPs));
587 croak("In %"SVf": undefined type '%"SVf"'", SVfARG(declarator), SVfARG(name));
600 DEFSTRUCT(ParamInit) {
605 #define VEC(B) B ## _Vec
607 #define DEFVECTOR(B) DEFSTRUCT(VEC(B)) { \
613 DEFVECTOR(ParamInit);
615 #define DEFVECTOR_INIT(N, B) static void N(VEC(B) *p) { \
618 Newx(p->data, p->size, B); \
619 } static void N(VEC(B) *)
621 DEFSTRUCT(ParamSpec) {
623 VEC(Param) positional_required;
624 VEC(ParamInit) positional_optional;
625 VEC(Param) named_required;
626 VEC(ParamInit) named_optional;
631 DEFVECTOR_INIT(pv_init, Param);
632 DEFVECTOR_INIT(piv_init, ParamInit);
634 static void p_init(Param *p) {
636 p->padoff = NOT_IN_PAD;
640 static void ps_init(ParamSpec *ps) {
641 p_init(&ps->invocant);
642 pv_init(&ps->positional_required);
643 piv_init(&ps->positional_optional);
644 pv_init(&ps->named_required);
645 piv_init(&ps->named_optional);
647 ps->rest_hash = NOT_IN_PAD;
650 #define DEFVECTOR_EXTEND(N, B) static B (*N(VEC(B) *p)) { \
651 assert(p->used <= p->size); \
652 if (p->used == p->size) { \
653 const size_t n = p->size / 2 * 3 + 1; \
654 Renew(p->data, n, B); \
657 return &p->data[p->used]; \
658 } static B (*N(VEC(B) *))
660 DEFVECTOR_EXTEND(pv_extend, Param);
661 DEFVECTOR_EXTEND(piv_extend, ParamInit);
663 #define DEFVECTOR_CLEAR(N, B, F) static void N(pTHX_ VEC(B) *p) { \
666 F(aTHX_ &p->data[p->used]); \
671 } static void N(pTHX_ VEC(B) *)
673 static void p_clear(pTHX_ Param *p) {
675 p->padoff = NOT_IN_PAD;
679 static void pi_clear(pTHX_ ParamInit *pi) {
680 p_clear(aTHX_ &pi->param);
687 DEFVECTOR_CLEAR(pv_clear, Param, p_clear);
688 DEFVECTOR_CLEAR(piv_clear, ParamInit, pi_clear);
690 static void ps_clear(pTHX_ ParamSpec *ps) {
691 p_clear(aTHX_ &ps->invocant);
693 pv_clear(aTHX_ &ps->positional_required);
694 piv_clear(aTHX_ &ps->positional_optional);
696 pv_clear(aTHX_ &ps->named_required);
697 piv_clear(aTHX_ &ps->named_optional);
699 p_clear(aTHX_ &ps->slurpy);
702 static int ps_contains(pTHX_ const ParamSpec *ps, SV *sv) {
705 if (ps->invocant.name && sv_eq(sv, ps->invocant.name)) {
709 for (i = 0, lim = ps->positional_required.used; i < lim; i++) {
710 if (sv_eq(sv, ps->positional_required.data[i].name)) {
715 for (i = 0, lim = ps->positional_optional.used; i < lim; i++) {
716 if (sv_eq(sv, ps->positional_optional.data[i].param.name)) {
721 for (i = 0, lim = ps->named_required.used; i < lim; i++) {
722 if (sv_eq(sv, ps->named_required.data[i].name)) {
727 for (i = 0, lim = ps->named_optional.used; i < lim; i++) {
728 if (sv_eq(sv, ps->named_optional.data[i].param.name)) {
736 static void ps_free_void(pTHX_ void *p) {
741 static int args_min(pTHX_ const ParamSpec *ps, const KWSpec *ks) {
744 return SvTRUE(ks->shift) ? 1 : 0;
746 if (ps->invocant.name) {
749 n += ps->positional_required.used;
750 n += ps->named_required.used * 2;
754 static int args_max(const ParamSpec *ps) {
759 if (ps->invocant.name) {
762 n += ps->positional_required.used;
763 n += ps->positional_optional.used;
764 if (ps->named_required.used || ps->named_optional.used || ps->slurpy.name) {
770 static size_t count_positional_params(const ParamSpec *ps) {
771 return ps->positional_required.used + ps->positional_optional.used;
774 static size_t count_named_params(const ParamSpec *ps) {
775 return ps->named_required.used + ps->named_optional.used;
778 static void my_require(pTHX_ const char *file) {
785 static SV *my_eval(pTHX_ Sentinel sen, I32 floor, OP *op) {
790 cv = newATTRSUB(floor, NULL, NULL, NULL, op);
796 call_sv((SV *)cv, G_SCALAR | G_NOARGS);
798 sv = sentinel_mortalize(sen, SvREFCNT_inc(POPs));
808 PARAM_INVOCANT = 0x01,
812 /* *pinit must be NULL on entry.
813 * caller must free *pinit on error.
815 static PADOFFSET parse_param(
818 const SV *declarator, const KWSpec *spec, ParamSpec *param_spec,
819 int *pflags, SV **pname, OP **pinit, SV **ptype
829 c = lex_peek_unichar(0);
831 if (spec->flags & FLAG_TYPES_OK) {
835 Resource *expr_sentinel;
839 floor = start_subparse(FALSE, 0);
840 SAVEFREESV(PL_compcv);
841 CvSPECIAL_on(PL_compcv);
843 if (!(expr = parse_fullexpr(PARSE_OPTIONAL))) {
844 croak("In %"SVf": invalid type expression", SVfARG(declarator));
846 expr_sentinel = sentinel_register(sen, expr, free_op_void);
849 c = lex_peek_unichar(0);
851 croak("In %"SVf": missing ')' after type expression", SVfARG(declarator));
856 SvREFCNT_inc_simple_void(PL_compcv);
857 sentinel_disarm(expr_sentinel);
858 *ptype = my_eval(aTHX_ sen, floor, expr);
859 *ptype = reify_type(aTHX_ sen, declarator, *ptype);
860 if (!sv_isobject(*ptype)) {
861 croak("In %"SVf": (%"SVf") doesn't look like a type object", SVfARG(declarator), SVfARG(*ptype));
864 c = lex_peek_unichar(0);
865 } else if (my_is_uni_xidfirst(aTHX_ c)) {
866 *ptype = parse_type(aTHX_ sen, declarator);
867 my_require(aTHX_ "Moose/Util/TypeConstraints.pm");
868 *ptype = reify_type(aTHX_ sen, declarator, *ptype);
870 c = lex_peek_unichar(0);
878 *pflags |= PARAM_NAMED;
880 c = lex_peek_unichar(0);
884 croak("In %"SVf": unterminated parameter list", SVfARG(declarator));
887 if (!(c == '$' || c == '@' || c == '%')) {
888 croak("In %"SVf": unexpected '%c' in parameter list (expecting a sigil)", SVfARG(declarator), (int)c);
896 if (!(name = my_scan_word(aTHX_ sen, FALSE))) {
897 croak("In %"SVf": missing identifier after '%c'", SVfARG(declarator), sigil);
899 sv_insert(name, 0, 0, &sigil, 1);
903 c = lex_peek_unichar(0);
910 if (!param_spec->invocant.name && SvTRUE(spec->shift)) {
911 param_spec->invocant.name = spec->shift;
912 param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL);
915 *pinit = parse_termexpr(0);
918 c = lex_peek_unichar(0);
922 *pflags |= PARAM_INVOCANT;
925 } else if (c == ',') {
928 } else if (c != ')') {
930 croak("In %"SVf": unterminated parameter list", SVfARG(declarator));
932 croak("In %"SVf": unexpected '%c' in parameter list (expecting ',')", SVfARG(declarator), (int)c);
935 return pad_add_name_sv(*pname, IF_HAVE_PERL_5_16(padadd_NO_DUP_CHECK, 0), NULL, NULL);
938 static OP *my_var_g(pTHX_ I32 type, I32 flags, PADOFFSET padoff) {
939 OP *var = newOP(type, flags);
940 var->op_targ = padoff;
944 static OP *my_var(pTHX_ I32 flags, PADOFFSET padoff) {
945 return my_var_g(aTHX_ OP_PADSV, flags, padoff);
948 static OP *mkhvelem(pTHX_ PADOFFSET h, OP *k) {
949 OP *hv = my_var_g(aTHX_ OP_PADHV, OPf_REF, h);
950 return newBINOP(OP_HELEM, 0, hv, k);
953 static OP *mkconstsv(pTHX_ SV *sv) {
954 return newSVOP(OP_CONST, 0, sv);
957 static OP *mkconstiv(pTHX_ IV i) {
958 return mkconstsv(aTHX_ newSViv(i));
961 static OP *mkconstpv(pTHX_ const char *p, size_t n) {
962 return mkconstsv(aTHX_ newSVpv(p, n));
965 #define mkconstpvs(S) mkconstpv(aTHX_ "" S "", sizeof S - 1)
967 static OP *mktypecheck(pTHX_ const SV *declarator, int nr, SV *name, PADOFFSET padoff, SV *type) {
968 /* $type->check($value) or Carp::croak "...: " . $type->get_message($value) */
969 OP *chk, *cond, *err, *msg, *xcroak;
971 err = mkconstsv(aTHX_ newSVpvf("In %"SVf": parameter %d (%"SVf"): ", SVfARG(declarator), nr, SVfARG(name)));
975 args = op_append_elem(OP_LIST, args, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(type)));
976 args = op_append_elem(
980 : my_var(aTHX_ 0, padoff)
982 args = op_append_elem(OP_LIST, args, newUNOP(OP_METHOD, 0, mkconstpvs("get_message")));
985 msg->op_type = OP_ENTERSUB;
986 msg->op_ppaddr = PL_ppaddr[OP_ENTERSUB];
987 msg->op_flags |= OPf_STACKED;
990 msg = newBINOP(OP_CONCAT, 0, err, msg);
994 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
996 xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak));
1001 args = op_append_elem(OP_LIST, args, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(type)));
1002 args = op_append_elem(
1004 padoff == NOT_IN_PAD
1005 ? S_newDEFSVOP(aTHX)
1006 : my_var(aTHX_ 0, padoff)
1008 args = op_append_elem(OP_LIST, args, newUNOP(OP_METHOD, 0, mkconstpvs("check")));
1011 chk->op_type = OP_ENTERSUB;
1012 chk->op_ppaddr = PL_ppaddr[OP_ENTERSUB];
1013 chk->op_flags |= OPf_STACKED;
1016 chk = newLOGOP(OP_OR, 0, chk, xcroak);
1020 static OP *mktypecheckp(pTHX_ const SV *declarator, int nr, const Param *param) {
1021 return mktypecheck(aTHX_ declarator, nr, param->name, param->padoff, param->type);
1024 static void register_info(pTHX_ UV key, SV *declarator, const KWSpec *kws, const ParamSpec *ps) {
1038 char *p = SvPV(declarator, n);
1039 char *q = memchr(p, ' ', n);
1040 mPUSHp(p, q ? q - p : n);
1043 if (SvTRUE(kws->shift)) {
1049 mPUSHs(newRV_noinc((SV *)newAV()));
1050 mPUSHs(newRV_noinc((SV *)newAV()));
1051 mPUSHs(newRV_noinc((SV *)newAV()));
1052 mPUSHs(newRV_noinc((SV *)newAV()));
1057 if (ps->invocant.name) {
1058 PUSHs(ps->invocant.name);
1059 if (ps->invocant.type) {
1060 PUSHs(ps->invocant.type);
1073 lim = ps->positional_required.used;
1077 av_extend(av, (lim - 1) * 2);
1078 for (i = 0; i < lim; i++) {
1079 Param *cur = &ps->positional_required.data[i];
1080 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1081 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1085 mPUSHs(newRV_noinc((SV *)av));
1091 lim = ps->positional_optional.used;
1095 av_extend(av, (lim - 1) * 2);
1096 for (i = 0; i < lim; i++) {
1097 Param *cur = &ps->positional_optional.data[i].param;
1098 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1099 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1103 mPUSHs(newRV_noinc((SV *)av));
1109 lim = ps->named_required.used;
1113 av_extend(av, (lim - 1) * 2);
1114 for (i = 0; i < lim; i++) {
1115 Param *cur = &ps->named_required.data[i];
1116 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1117 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1121 mPUSHs(newRV_noinc((SV *)av));
1127 lim = ps->named_optional.used;
1131 av_extend(av, (lim - 1) * 2);
1132 for (i = 0; i < lim; i++) {
1133 Param *cur = &ps->named_optional.data[i].param;
1134 av_push(av, SvREFCNT_inc_simple_NN(cur->name));
1135 av_push(av, cur->type ? SvREFCNT_inc_simple_NN(cur->type) : &PL_sv_undef);
1139 mPUSHs(newRV_noinc((SV *)av));
1142 if (ps->slurpy.name) {
1143 PUSHs(ps->slurpy.name);
1144 if (ps->slurpy.type) {
1145 PUSHs(ps->slurpy.type);
1157 call_pv(MY_PKG "::_register_info", G_VOID);
1163 static int parse_fun(pTHX_ Sentinel sen, OP **pop, const char *keyword_ptr, STRLEN keyword_len, const KWSpec *spec) {
1164 ParamSpec *param_spec;
1169 OP **prelude_sentinel;
1171 OP **attrs_sentinel, *body;
1172 unsigned builtin_attrs;
1175 declarator = sentinel_mortalize(sen, newSVpvn(keyword_ptr, keyword_len));
1183 if ((spec->flags & FLAG_NAME_OK) && (saw_name = my_scan_word(aTHX_ sen, TRUE))) {
1185 if (PL_parser->expect != XSTATE) {
1186 /* bail out early so we don't predeclare $saw_name */
1187 croak("In %"SVf": I was expecting a function body, not \"%"SVf"\"", SVfARG(declarator), SVfARG(saw_name));
1190 sv_catpvs(declarator, " ");
1191 sv_catsv(declarator, saw_name);
1194 sv_eq_pvs(saw_name, "BEGIN") ||
1195 sv_eq_pvs(saw_name, "END") ||
1196 sv_eq_pvs(saw_name, "INIT") ||
1197 sv_eq_pvs(saw_name, "CHECK") ||
1198 sv_eq_pvs(saw_name, "UNITCHECK")
1200 builtin_attrs |= MY_ATTR_SPECIAL;
1204 } else if (!(spec->flags & FLAG_ANON_OK)) {
1205 croak("I was expecting a function name, not \"%.*s\"", (int)(PL_parser->bufend - PL_parser->bufptr), PL_parser->bufptr);
1207 sv_catpvs(declarator, " (anon)");
1210 /* we're a subroutine declaration */
1211 floor_ix = start_subparse(FALSE, saw_name ? 0 : CVf_ANON);
1212 SAVEFREESV(PL_compcv);
1214 /* create outer block: '{' */
1215 save_ix = S_block_start(aTHX_ TRUE);
1217 /* initialize synthetic optree */
1218 Newx(prelude_sentinel, 1, OP *);
1219 *prelude_sentinel = NULL;
1220 sentinel_register(sen, prelude_sentinel, free_ptr_op_void);
1225 c = lex_peek_unichar(0);
1229 Newx(init_sentinel, 1, OP *);
1230 *init_sentinel = NULL;
1231 sentinel_register(sen, init_sentinel, free_ptr_op_void);
1233 Newx(param_spec, 1, ParamSpec);
1234 ps_init(param_spec);
1235 sentinel_register(sen, param_spec, ps_free_void);
1237 lex_read_unichar(0);
1240 while ((c = lex_peek_unichar(0)) != ')') {
1246 padoff = parse_param(aTHX_ sen, declarator, spec, param_spec, &flags, &name, init_sentinel, &type);
1250 sigil = SvPV_nolen(name)[0];
1252 /* internal consistency */
1253 if (flags & PARAM_NAMED) {
1254 if (flags & PARAM_INVOCANT) {
1255 croak("In %"SVf": invocant %"SVf" can't be a named parameter", SVfARG(declarator), SVfARG(name));
1258 croak("In %"SVf": named parameter %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash");
1260 } else if (flags & PARAM_INVOCANT) {
1261 if (*init_sentinel) {
1262 croak("In %"SVf": invocant %"SVf" can't have a default value", SVfARG(declarator), SVfARG(name));
1265 croak("In %"SVf": invocant %"SVf" can't be a%s", SVfARG(declarator), SVfARG(name), sigil == '@' ? "n array" : " hash");
1267 } else if (sigil != '$' && *init_sentinel) {
1268 croak("In %"SVf": %s %"SVf" can't have a default value", SVfARG(declarator), sigil == '@' ? "array" : "hash", SVfARG(name));
1271 /* external constraints */
1272 if (param_spec->slurpy.name) {
1273 croak("In %"SVf": I was expecting \")\" after \"%"SVf"\", not \"%"SVf"\"", SVfARG(declarator), SVfARG(param_spec->slurpy.name), SVfARG(name));
1276 assert(!*init_sentinel);
1277 param_spec->slurpy.name = name;
1278 param_spec->slurpy.padoff = padoff;
1279 param_spec->slurpy.type = type;
1283 if (!(flags & PARAM_NAMED) && count_named_params(param_spec)) {
1284 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));
1287 if (flags & PARAM_INVOCANT) {
1288 if (param_spec->invocant.name) {
1289 croak("In %"SVf": invalid double invocants %"SVf", %"SVf"", SVfARG(declarator), SVfARG(param_spec->invocant.name), SVfARG(name));
1291 if (count_positional_params(param_spec) || count_named_params(param_spec)) {
1292 croak("In %"SVf": invocant %"SVf" must be first in parameter list", SVfARG(declarator), SVfARG(name));
1294 if (!(spec->flags & FLAG_INVOCANT)) {
1295 croak("In %"SVf": invocant %"SVf" not allowed here", SVfARG(declarator), SVfARG(name));
1297 param_spec->invocant.name = name;
1298 param_spec->invocant.padoff = padoff;
1299 param_spec->invocant.type = type;
1303 if (*init_sentinel && !(spec->flags & FLAG_DEFAULT_ARGS)) {
1304 croak("In %"SVf": default argument for %"SVf" not allowed here", SVfARG(declarator), SVfARG(name));
1307 if (ps_contains(aTHX_ param_spec, name)) {
1308 croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(name));
1311 if (flags & PARAM_NAMED) {
1312 if (!(spec->flags & FLAG_NAMED_PARAMS)) {
1313 croak("In %"SVf": named parameter :%"SVf" not allowed here", SVfARG(declarator), SVfARG(name));
1316 if (*init_sentinel) {
1317 ParamInit *pi = piv_extend(¶m_spec->named_optional);
1318 pi->param.name = name;
1319 pi->param.padoff = padoff;
1320 pi->param.type = type;
1321 pi->init = *init_sentinel;
1322 *init_sentinel = NULL;
1323 param_spec->named_optional.used++;
1325 if (param_spec->positional_optional.used) {
1326 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));
1329 Param *p = pv_extend(¶m_spec->named_required);
1333 param_spec->named_required.used++;
1336 if (*init_sentinel || param_spec->positional_optional.used) {
1337 ParamInit *pi = piv_extend(¶m_spec->positional_optional);
1338 pi->param.name = name;
1339 pi->param.padoff = padoff;
1340 pi->param.type = type;
1341 pi->init = *init_sentinel;
1342 *init_sentinel = NULL;
1343 param_spec->positional_optional.used++;
1345 Param *p = pv_extend(¶m_spec->positional_required);
1349 param_spec->positional_required.used++;
1354 lex_read_unichar(0);
1356 *init_sentinel = NULL;
1358 if (!param_spec->invocant.name && SvTRUE(spec->shift)) {
1359 if (ps_contains(aTHX_ param_spec, spec->shift)) {
1360 croak("In %"SVf": %"SVf" can't appear twice in the same parameter list", SVfARG(declarator), SVfARG(spec->shift));
1363 param_spec->invocant.name = spec->shift;
1364 param_spec->invocant.padoff = pad_add_name_sv(param_spec->invocant.name, 0, NULL, NULL);
1370 c = lex_peek_unichar(0);
1372 lex_read_unichar(0);
1375 c = lex_peek_unichar(0);
1377 lex_stuff_pvs(":", 0);
1380 lex_read_unichar(0);
1381 if (!(proto = my_scan_parens_tail(aTHX_ sen, FALSE))) {
1382 croak("In %"SVf": prototype not terminated", SVfARG(declarator));
1384 my_check_prototype(aTHX_ sen, declarator, proto);
1386 c = lex_peek_unichar(0);
1387 if (!(c == ':' || c == '{')) {
1388 lex_stuff_pvs(":", 0);
1395 Newx(attrs_sentinel, 1, OP *);
1396 *attrs_sentinel = NULL;
1397 sentinel_register(sen, attrs_sentinel, free_ptr_op_void);
1399 if (c == ':' || c == '{') /* '}' - hi, vim */ {
1401 /* kludge default attributes in */
1402 if (SvTRUE(spec->attrs) && SvPV_nolen(spec->attrs)[0] == ':') {
1403 lex_stuff_sv(spec->attrs, 0);
1408 lex_read_unichar(0);
1410 c = lex_peek_unichar(0);
1415 if (!(attr = my_scan_word(aTHX_ sen, FALSE))) {
1420 c = lex_peek_unichar(0);
1423 if (sv_eq_pvs(attr, "lvalue")) {
1424 builtin_attrs |= MY_ATTR_LVALUE;
1426 } else if (sv_eq_pvs(attr, "method")) {
1427 builtin_attrs |= MY_ATTR_METHOD;
1432 lex_read_unichar(0);
1433 if (!(sv = my_scan_parens_tail(aTHX_ sen, TRUE))) {
1434 croak("In %"SVf": unterminated attribute parameter in attribute list", SVfARG(declarator));
1436 sv_catpvs(attr, "(");
1438 sv_catpvs(attr, ")");
1441 c = lex_peek_unichar(0);
1445 *attrs_sentinel = op_append_elem(OP_LIST, *attrs_sentinel, mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(attr)));
1449 lex_read_unichar(0);
1451 c = lex_peek_unichar(0);
1458 if (c != '{') /* '}' - hi, vim */ {
1459 croak("In %"SVf": I was expecting a function body, not \"%c\"", SVfARG(declarator), (int)c);
1462 /* surprise predeclaration! */
1464 /* 'sub NAME (PROTO);' to make name/proto known to perl before it
1465 starts parsing the body */
1466 const I32 sub_ix = start_subparse(FALSE, 0);
1467 SAVEFREESV(PL_compcv);
1469 SvREFCNT_inc_simple_void(PL_compcv);
1473 mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(saw_name)),
1474 proto ? mkconstsv(aTHX_ SvREFCNT_inc_simple_NN(proto)) : NULL,
1480 if (builtin_attrs & MY_ATTR_LVALUE) {
1481 CvLVALUE_on(PL_compcv);
1483 if (builtin_attrs & MY_ATTR_METHOD) {
1484 CvMETHOD_on(PL_compcv);
1486 if (builtin_attrs & MY_ATTR_SPECIAL) {
1487 CvSPECIAL_on(PL_compcv);
1490 /* check number of arguments */
1491 if (spec->flags & FLAG_CHECK_NARGS) {
1495 amin = args_min(aTHX_ param_spec, spec);
1497 OP *chk, *cond, *err, *xcroak;
1499 err = mkconstsv(aTHX_ newSVpvf("Not enough arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amin));
1503 newAVREF(newGVOP(OP_GV, 0, PL_defgv))
1511 xcroak = newCVREF(OPf_WANT_SCALAR,
1512 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)));
1513 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
1514 op_append_elem(OP_LIST, err, xcroak));
1516 cond = newBINOP(OP_LT, 0,
1517 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1518 mkconstiv(aTHX_ amin));
1519 chk = newLOGOP(OP_AND, 0, cond, err);
1521 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk));
1524 amax = args_max(param_spec);
1526 OP *chk, *cond, *err, *xcroak;
1528 err = mkconstsv(aTHX_ newSVpvf("Too many arguments for %"SVf" (expected %d, got ", SVfARG(declarator), amax));
1532 newAVREF(newGVOP(OP_GV, 0, PL_defgv))
1542 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1544 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
1545 op_append_elem(OP_LIST, err, xcroak));
1549 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1550 mkconstiv(aTHX_ amax)
1552 chk = newLOGOP(OP_AND, 0, cond, err);
1554 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk));
1557 if (param_spec && (count_named_params(param_spec) || (param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%'))) {
1558 OP *chk, *cond, *err, *xcroak;
1559 const UV fixed = count_positional_params(param_spec) + !!param_spec->invocant.name;
1561 err = mkconstsv(aTHX_ newSVpvf("Odd number of paired arguments for %"SVf"", SVfARG(declarator)));
1565 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1567 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
1568 op_append_elem(OP_LIST, err, xcroak));
1570 cond = newBINOP(OP_GT, 0,
1571 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1572 mkconstiv(aTHX_ fixed));
1573 cond = newLOGOP(OP_AND, 0,
1575 newBINOP(OP_MODULO, 0,
1577 ? newBINOP(OP_SUBTRACT, 0,
1578 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1579 mkconstiv(aTHX_ fixed))
1580 : newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1581 mkconstiv(aTHX_ 2)));
1582 chk = newLOGOP(OP_AND, 0, cond, err);
1584 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk));
1589 /* my $invocant = shift; */
1590 if (SvTRUE(spec->shift)) {
1595 OPf_MOD | (OPpLVAL_INTRO << 8),
1596 pad_add_name_sv(spec->shift, 0, NULL, NULL)
1598 var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0));
1600 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1603 /* my $invocant = shift; */
1604 if (param_spec->invocant.name) {
1609 OPf_MOD | (OPpLVAL_INTRO << 8),
1610 param_spec->invocant.padoff
1612 var = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0));
1614 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1616 if (param_spec->invocant.type && (spec->flags & FLAG_CHECK_TARGS)) {
1617 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, 0, ¶m_spec->invocant)));
1621 /* my (...) = @_; */
1628 for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) {
1629 OP *const var = my_var(
1631 OPf_WANT_LIST | (OPpLVAL_INTRO << 8),
1632 param_spec->positional_required.data[i].padoff
1634 lhs = op_append_elem(OP_LIST, lhs, var);
1637 for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) {
1638 OP *const var = my_var(
1640 OPf_WANT_LIST | (OPpLVAL_INTRO << 8),
1641 param_spec->positional_optional.data[i].param.padoff
1643 lhs = op_append_elem(OP_LIST, lhs, var);
1653 * 1) no named params
1660 * => synthetic %{rest}
1661 * 2.2) slurpy is a hash
1663 * 2.3) slurpy is an array
1664 * => synthetic %{rest}
1665 * remember to declare array later
1668 slurpy_hash = param_spec->slurpy.name && SvPV_nolen(param_spec->slurpy.name)[0] == '%';
1669 if (!count_named_params(param_spec)) {
1670 if (param_spec->slurpy.name) {
1671 padoff = param_spec->slurpy.padoff;
1672 type = slurpy_hash ? OP_PADHV : OP_PADAV;
1674 padoff = NOT_IN_PAD;
1677 } else if (slurpy_hash) {
1678 padoff = param_spec->slurpy.padoff;
1681 padoff = param_spec->rest_hash = pad_add_name_pvs("%{rest}", 0, NULL, NULL);
1685 if (padoff != NOT_IN_PAD) {
1686 OP *const var = my_var_g(
1689 OPf_WANT_LIST | (OPpLVAL_INTRO << 8),
1693 lhs = op_append_elem(OP_LIST, lhs, var);
1695 if (type == OP_PADHV) {
1696 param_spec->rest_hash = padoff;
1703 lhs->op_flags |= OPf_PARENS;
1704 rhs = newAVREF(newGVOP(OP_GV, 0, PL_defgv));
1706 *prelude_sentinel = op_append_list(
1707 OP_LINESEQ, *prelude_sentinel,
1710 newASSIGNOP(OPf_STACKED, lhs, 0, rhs)
1716 /* default positional arguments */
1723 req = param_spec->positional_required.used;
1724 for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) {
1725 ParamInit *cur = ¶m_spec->positional_optional.data[i];
1730 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
1731 mkconstiv(aTHX_ req + i + 1)
1734 var = my_var(aTHX_ 0, cur->param.padoff);
1736 nest = op_append_list(
1738 newASSIGNOP(OPf_STACKED, var, 0, cur->init)
1749 *prelude_sentinel = op_append_list(
1750 OP_LINESEQ, *prelude_sentinel,
1755 /* named parameters */
1756 if (count_named_params(param_spec)) {
1759 assert(param_spec->rest_hash != NOT_IN_PAD);
1761 for (i = 0, lim = param_spec->named_required.used; i < lim; i++) {
1762 Param *cur = ¶m_spec->named_required.data[i];
1764 char *p = SvPV(cur->name, n);
1767 cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1769 if (spec->flags & FLAG_CHECK_NARGS) {
1772 var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1773 var = newUNOP(OP_DELETE, 0, var);
1775 msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": missing named parameter: %.*s", SVfARG(declarator), (int)(n - 1), p + 1));
1778 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1780 xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak));
1782 cond = newUNOP(OP_EXISTS, 0, cond);
1784 cond = newCONDOP(0, cond, var, xcroak);
1789 OPf_MOD | (OPpLVAL_INTRO << 8),
1792 var = newASSIGNOP(OPf_STACKED, var, 0, cond);
1794 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1797 for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) {
1798 ParamInit *cur = ¶m_spec->named_optional.data[i];
1800 char *p = SvPV(cur->param.name, n);
1803 var = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1804 var = newUNOP(OP_DELETE, 0, var);
1806 cond = mkhvelem(aTHX_ param_spec->rest_hash, mkconstpv(aTHX_ p + 1, n - 1));
1807 cond = newUNOP(OP_EXISTS, 0, cond);
1809 cond = newCONDOP(0, cond, var, cur->init);
1814 OPf_MOD | (OPpLVAL_INTRO << 8),
1817 var = newASSIGNOP(OPf_STACKED, var, 0, cond);
1819 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1822 if (!param_spec->slurpy.name) {
1823 if (spec->flags & FLAG_CHECK_NARGS) {
1824 /* croak if %{rest} */
1825 OP *xcroak, *cond, *keys, *msg;
1827 keys = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash));
1828 keys = newLISTOP(OP_SORT, 0, newOP(OP_PUSHMARK, 0), keys);
1830 OP *first, *mid, *last;
1834 mid = mkconstpvs(", ");
1835 mid->op_sibling = last;
1837 first = newOP(OP_PUSHMARK, 0);
1839 keys = newLISTOP(OP_JOIN, 0, first, mid);
1840 keys->op_targ = pad_alloc(OP_JOIN, SVs_PADTMP);
1841 ((LISTOP *)keys)->op_last = last;
1844 msg = mkconstsv(aTHX_ newSVpvf("In %"SVf": no such named parameter: ", SVfARG(declarator)));
1845 msg = newBINOP(OP_CONCAT, 0, msg, keys);
1849 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV))
1851 xcroak = newUNOP(OP_ENTERSUB, OPf_STACKED, op_append_elem(OP_LIST, msg, xcroak));
1853 cond = newUNOP(OP_KEYS, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash));
1854 xcroak = newCONDOP(0, cond, xcroak, NULL);
1856 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, xcroak));
1860 clear = newASSIGNOP(
1862 my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash),
1867 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, clear));
1869 } else if (param_spec->slurpy.padoff != param_spec->rest_hash) {
1872 assert(SvPV_nolen(param_spec->slurpy.name)[0] == '@');
1877 OPf_MOD | (OPpLVAL_INTRO << 8),
1878 param_spec->slurpy.padoff
1881 var = newASSIGNOP(OPf_STACKED, var, 0, my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash));
1883 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
1885 clear = newASSIGNOP(
1887 my_var_g(aTHX_ OP_PADHV, 0, param_spec->rest_hash),
1892 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, clear));
1896 if (spec->flags & FLAG_CHECK_TARGS) {
1897 size_t i, lim, base;
1900 for (i = 0, lim = param_spec->positional_required.used; i < lim; i++) {
1901 Param *cur = ¶m_spec->positional_required.data[i];
1904 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur)));
1909 for (i = 0, lim = param_spec->positional_optional.used; i < lim; i++) {
1910 Param *cur = ¶m_spec->positional_optional.data[i].param;
1913 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur)));
1918 for (i = 0, lim = param_spec->named_required.used; i < lim; i++) {
1919 Param *cur = ¶m_spec->named_required.data[i];
1922 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur)));
1927 for (i = 0, lim = param_spec->named_optional.used; i < lim; i++) {
1928 Param *cur = ¶m_spec->named_optional.data[i].param;
1931 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, mktypecheckp(aTHX_ declarator, base + i, cur)));
1936 if (param_spec->slurpy.type) {
1937 /* $type->valid($_) or croak $type->get_message($_) for @rest / values %rest */
1938 OP *body, *list, *loop;
1940 body = mktypecheck(aTHX_ declarator, base, param_spec->slurpy.name, NOT_IN_PAD, param_spec->slurpy.type);
1942 if (SvPV_nolen(param_spec->slurpy.name)[0] == '@') {
1943 list = my_var_g(aTHX_ OP_PADAV, 0, param_spec->slurpy.padoff);
1945 list = my_var_g(aTHX_ OP_PADHV, 0, param_spec->slurpy.padoff);
1946 list = newUNOP(OP_VALUES, 0, list);
1949 loop = newFOROP(0, NULL, list, body, NULL);
1951 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, loop));
1956 /* finally let perl parse the actual subroutine body */
1957 body = parse_block(0);
1959 /* add '();' to make function return nothing by default */
1960 /* (otherwise the invisible parameter initialization can "leak" into
1961 the return value: fun ($x) {}->("asdf", 0) == 2) */
1962 if (*prelude_sentinel) {
1963 body = newSTATEOP(0, NULL, body);
1966 body = op_append_list(OP_LINESEQ, *prelude_sentinel, body);
1967 *prelude_sentinel = NULL;
1972 OP *const attrs = *attrs_sentinel;
1973 *attrs_sentinel = NULL;
1975 SvREFCNT_inc_simple_void(PL_compcv);
1977 /* close outer block: '}' */
1978 S_block_end(aTHX_ save_ix, body);
1982 saw_name ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(saw_name)) : NULL,
1983 proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL,
1988 register_info(aTHX_ PTR2UV(CvROOT(cv)), declarator, spec, param_spec);
1991 *pop = newOP(OP_NULL, 0);
1992 return KEYWORD_PLUGIN_STMT;
2002 return KEYWORD_PLUGIN_EXPR;
2006 static int my_keyword_plugin(pTHX_ char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) {
2009 Sentinel sen = { NULL };
2014 SAVEDESTRUCTOR_X(sentinel_clear_void, sen);
2016 if (kw_flags(aTHX_ sen, keyword_ptr, keyword_len, &spec)) {
2017 ret = parse_fun(aTHX_ sen, op_ptr, keyword_ptr, keyword_len, &spec);
2019 ret = next_keyword_plugin(aTHX_ keyword_ptr, keyword_len, op_ptr);
2030 MODULE = Function::Parameters PACKAGE = Function::Parameters PREFIX = fp_
2041 cv = sv_2cv(sv, &hv, &gv, 0);
2042 RETVAL = PTR2UV(cv ? CvROOT(cv) : NULL);
2048 HV *const stash = gv_stashpvs(MY_PKG, GV_ADD);
2050 newCONSTSUB(stash, "FLAG_NAME_OK", newSViv(FLAG_NAME_OK));
2051 newCONSTSUB(stash, "FLAG_ANON_OK", newSViv(FLAG_ANON_OK));
2052 newCONSTSUB(stash, "FLAG_DEFAULT_ARGS", newSViv(FLAG_DEFAULT_ARGS));
2053 newCONSTSUB(stash, "FLAG_CHECK_NARGS", newSViv(FLAG_CHECK_NARGS));
2054 newCONSTSUB(stash, "FLAG_INVOCANT", newSViv(FLAG_INVOCANT));
2055 newCONSTSUB(stash, "FLAG_NAMED_PARAMS", newSViv(FLAG_NAMED_PARAMS));
2056 newCONSTSUB(stash, "FLAG_TYPES_OK", newSViv(FLAG_TYPES_OK));
2057 newCONSTSUB(stash, "FLAG_CHECK_TARGS", newSViv(FLAG_CHECK_TARGS));
2058 newCONSTSUB(stash, "HINTK_KEYWORDS", newSVpvs(HINTK_KEYWORDS));
2059 newCONSTSUB(stash, "HINTK_FLAGS_", newSVpvs(HINTK_FLAGS_));
2060 newCONSTSUB(stash, "HINTK_SHIFT_", newSVpvs(HINTK_SHIFT_));
2061 newCONSTSUB(stash, "HINTK_ATTRS_", newSVpvs(HINTK_ATTRS_));
2063 next_keyword_plugin = PL_keyword_plugin;
2064 PL_keyword_plugin = my_keyword_plugin;