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 #define MY_PKG "Function::Parameters"
68 #define HINTK_KEYWORDS MY_PKG "/keywords"
69 #define HINTK_FLAGS_ MY_PKG "/flags:"
70 #define HINTK_SHIFT_ MY_PKG "/shift:"
71 #define HINTK_ATTRS_ MY_PKG "/attrs:"
73 #define DEFSTRUCT(T) typedef struct T T; struct T
75 DEFSTRUCT(DefaultParamSpec) {
76 DefaultParamSpec *next;
85 FLAG_DEFAULT_ARGS = 0x04,
86 FLAG_CHECK_NARGS = 0x08,
96 static int (*next_keyword_plugin)(pTHX_ char *, STRLEN, OP **);
98 static int kw_flags(pTHX_ const char *kw_ptr, STRLEN kw_len, KWSpec *spec) {
101 const char *p, *kw_active;
102 STRLEN kw_active_len;
105 spec->shift = sv_2mortal(newSVpvs(""));
106 spec->attrs = sv_2mortal(newSVpvs(""));
108 if (!(hints = GvHV(PL_hintgv))) {
111 if (!(psv = hv_fetchs(hints, HINTK_KEYWORDS, 0))) {
115 kw_active = SvPV(sv, kw_active_len);
116 if (kw_active_len <= kw_len) {
121 (p = strchr(p, *kw_ptr)) &&
122 p < kw_active + kw_active_len - kw_len;
126 (p == kw_active || p[-1] == ' ') &&
128 memcmp(kw_ptr, p, kw_len) == 0
131 #define FETCH_HINTK_INTO(NAME, PTR, LEN, X) STMT_START { \
132 const char *fk_ptr_; \
135 fk_sv_ = sv_2mortal(newSVpvs(HINTK_ ## NAME)); \
136 sv_catpvn(fk_sv_, PTR, LEN); \
137 fk_ptr_ = SvPV(fk_sv_, fk_len_); \
138 if (!((X) = hv_fetch(hints, fk_ptr_, fk_len_, 0))) { \
139 croak("%s: internal error: $^H{'%.*s'} not set", MY_PKG, (int)fk_len_, fk_ptr_); \
143 FETCH_HINTK_INTO(FLAGS_, kw_ptr, kw_len, psv);
144 spec->flags = SvIV(*psv);
146 FETCH_HINTK_INTO(SHIFT_, kw_ptr, kw_len, psv);
147 SvSetSV(spec->shift, *psv);
149 FETCH_HINTK_INTO(ATTRS_, kw_ptr, kw_len, psv);
150 SvSetSV(spec->attrs, *psv);
152 #undef FETCH_HINTK_INTO
160 static void free_defspec(pTHX_ void *vp) {
161 DefaultParamSpec *dp = vp;
166 static void free_ptr_op(pTHX_ void *vp) {
172 #define sv_eq_pvs(SV, S) my_sv_eq_pvn(aTHX_ SV, "" S "", sizeof (S) - 1)
174 static int my_sv_eq_pvn(pTHX_ SV *sv, const char *p, STRLEN n) {
176 const char *sv_p = SvPV(sv, sv_len);
177 return memcmp(sv_p, p, n) == 0;
181 #include "padop_on_crack.c.inc"
185 static PADOFFSET pad_add_my_sv(SV *name) {
192 myvar = *av_fetch(PL_comppad, AvFILLp(PL_comppad) + 1, 1);
193 offset = AvFILLp(PL_comppad);
196 SvUPGRADE(myvar, SVt_PVAV);
197 } else if (*p == '%') {
198 SvUPGRADE(myvar, SVt_PVHV);
200 PL_curpad = AvARRAY(PL_comppad);
201 namesv = newSV_type(SVt_PVMG);
202 sv_setpvn(namesv, p, len);
203 COP_SEQ_RANGE_LOW_set(namesv, PL_cop_seqmax);
204 COP_SEQ_RANGE_HIGH_set(namesv, PERL_PADSEQ_INTRO);
206 av_store(PL_comppad_name, offset, namesv);
212 MY_ATTR_LVALUE = 0x01,
213 MY_ATTR_METHOD = 0x02,
214 MY_ATTR_SPECIAL = 0x04
217 static void my_sv_cat_c(pTHX_ SV *sv, U32 c) {
218 char ds[UTF8_MAXBYTES + 1], *d;
219 d = uvchr_to_utf8(ds, c);
223 sv_catpvn(sv, ds, d - ds);
226 static bool my_is_uni_xidfirst(pTHX_ UV c) {
227 U8 tmpbuf[UTF8_MAXBYTES + 1];
228 uvchr_to_utf8(tmpbuf, c);
229 return is_utf8_xidfirst(tmpbuf);
232 static bool my_is_uni_xidcont(pTHX_ UV c) {
233 U8 tmpbuf[UTF8_MAXBYTES + 1];
234 uvchr_to_utf8(tmpbuf, c);
235 return is_utf8_xidcont(tmpbuf);
238 static SV *my_scan_word(pTHX_ bool allow_package) {
239 bool at_start, at_substart;
241 SV *sv = sv_2mortal(newSVpvs(""));
246 at_start = at_substart = TRUE;
247 c = lex_peek_unichar(0);
250 if (at_substart ? my_is_uni_xidfirst(aTHX_ c) : my_is_uni_xidcont(aTHX_ c)) {
252 my_sv_cat_c(aTHX_ sv, c);
254 c = lex_peek_unichar(0);
255 } else if (allow_package && !at_substart && c == '\'') {
257 c = lex_peek_unichar(0);
258 if (!my_is_uni_xidfirst(aTHX_ c)) {
259 lex_stuff_pvs("'", 0);
264 } else if (allow_package && (at_start || !at_substart) && c == ':') {
266 if (lex_peek_unichar(0) != ':') {
267 lex_stuff_pvs(":", 0);
271 c = lex_peek_unichar(0);
272 if (!my_is_uni_xidfirst(aTHX_ c)) {
273 lex_stuff_pvs("::", 0);
284 return SvCUR(sv) ? sv : NULL;
287 static SV *my_scan_parens_tail(pTHX_ bool keep_backslash) {
292 start = CopLINE(PL_curcop);
294 sv = sv_2mortal(newSVpvs(""));
301 c = lex_read_unichar(0);
303 CopLINE_set(PL_curcop, start);
308 c = lex_read_unichar(0);
310 CopLINE_set(PL_curcop, start);
313 if (keep_backslash || (c != '(' && c != ')')) {
316 } else if (c == '(') {
318 } else if (c == ')') {
325 my_sv_cat_c(aTHX_ sv, c);
331 static void my_check_prototype(pTHX_ const SV *declarator, SV *proto) {
332 char *start, *r, *w, *end;
336 start = SvPV(proto, len);
339 for (w = r = start; r < end; r++) {
345 SvCUR_set(proto, w - start);
349 if (!ckWARN(WARN_ILLEGALPROTO)) {
353 /* check for bad characters */
354 if (strspn(start, "$@%*;[]&\\_+") != len) {
355 SV *dsv = newSVpvs_flags("", SVs_TEMP);
357 packWARN(WARN_ILLEGALPROTO),
358 "Illegal character in prototype for %"SVf" : %s",
367 : pv_pretty(dsv, start, len, 60, NULL, NULL,
368 PERL_PV_ESCAPE_NONASCII
374 for (r = start; r < end; r++) {
378 packWARN(WARN_ILLEGALPROTO),
379 "Illegal character in prototype for %"SVf" : %s",
380 SVfARG(declarator), r
385 if (r[1] && !strchr(";@%", *r)) {
387 packWARN(WARN_ILLEGALPROTO),
388 "Illegal character after '_' in prototype for %"SVf" : %s",
389 SVfARG(declarator), r
399 packWARN(WARN_ILLEGALPROTO),
400 "prototype after '%c' for %"SVf": %s",
401 *r, SVfARG(declarator), r + 1
409 if (strchr("$@%&*", *r)) {
414 for (; r < end && *r != ']'; r++) {
415 if (!strchr("$@%&*", *r)) {
419 if (*r == ']' && r[-1] != '[') {
424 packWARN(WARN_ILLEGALPROTO),
425 "Illegal character after '\\' in prototype for %"SVf" : %s",
426 SVfARG(declarator), r
440 static int parse_fun(pTHX_ OP **pop, const char *keyword_ptr, STRLEN keyword_len, const KWSpec *spec) {
445 OP **prelude_sentinel;
446 int did_invocant_decl;
449 DefaultParamSpec *defaults;
450 int args_min, args_max;
452 OP **attrs_sentinel, *body;
453 unsigned builtin_attrs;
457 declarator = sv_2mortal(newSVpvn(keyword_ptr, keyword_len));
465 if ((spec->flags & FLAG_NAME_OK) && (saw_name = my_scan_word(aTHX_ TRUE))) {
467 if (PL_parser->expect != XSTATE) {
468 /* bail out early so we don't predeclare $saw_name */
469 croak("In %"SVf": I was expecting a function body, not \"%"SVf"\"", SVfARG(declarator), SVfARG(saw_name));
472 sv_catpvs(declarator, " ");
473 sv_catsv(declarator, saw_name);
476 sv_eq_pvs(saw_name, "BEGIN") ||
477 sv_eq_pvs(saw_name, "END") ||
478 sv_eq_pvs(saw_name, "INIT") ||
479 sv_eq_pvs(saw_name, "CHECK") ||
480 sv_eq_pvs(saw_name, "UNITCHECK")
482 builtin_attrs |= MY_ATTR_SPECIAL;
486 } else if (!(spec->flags & FLAG_ANON_OK)) {
487 croak("I was expecting a function name, not \"%.*s\"", (int)(PL_parser->bufend - PL_parser->bufptr), PL_parser->bufptr);
489 sv_catpvs(declarator, " (anon)");
492 /* we're a subroutine declaration */
493 floor_ix = start_subparse(FALSE, saw_name ? 0 : CVf_ANON);
494 SAVEFREESV(PL_compcv);
496 /* create outer block: '{' */
497 save_ix = S_block_start(aTHX_ TRUE);
499 /* initialize synthetic optree */
500 Newx(prelude_sentinel, 1, OP *);
501 *prelude_sentinel = NULL;
502 SAVEDESTRUCTOR_X(free_ptr_op, prelude_sentinel);
505 did_invocant_decl = 0;
512 c = lex_peek_unichar(0);
514 DefaultParamSpec **pdefaults_tail = &defaults;
515 SV *saw_slurpy = NULL;
523 sv_2mortal((SV *)params);
526 c = lex_peek_unichar(0);
527 if (c == '$' || c == '@' || c == '%') {
528 const char sigil = c;
536 if (!(param = my_scan_word(aTHX_ FALSE))) {
537 croak("In %"SVf": missing identifier", SVfARG(declarator));
539 sv_insert(param, 0, 0, &sigil, 1);
541 croak("In %"SVf": I was expecting \")\" after \"%"SVf"\", not \"%"SVf"\"", SVfARG(declarator), SVfARG(saw_slurpy), SVfARG(param));
551 c = lex_peek_unichar(0);
553 assert(param_count >= 1);
557 croak("In %"SVf": invalid double invocants %"SVf", %"SVf"", SVfARG(declarator), SVfARG(invocant), SVfARG(param));
559 if (param_count != 1) {
560 croak("In %"SVf": invocant %"SVf" must be first in parameter list", SVfARG(declarator), SVfARG(param));
562 if (!(spec->flags & FLAG_INVOCANT)) {
563 croak("In %"SVf": invocant %"SVf" not allowed here", SVfARG(declarator), SVfARG(param));
566 croak("In %"SVf": invocant %"SVf" can't be a %s", SVfARG(declarator), SVfARG(param), sigil == '@' ? "array" : "hash");
576 av_push(params, SvREFCNT_inc_simple_NN(param));
578 if (c == '=' && (spec->flags & FLAG_DEFAULT_ARGS)) {
579 DefaultParamSpec *curdef;
582 croak("In %"SVf": %s %"SVf" can't have a default value", SVfARG(declarator), sigil == '@' ? "array" : "hash", SVfARG(saw_slurpy));
588 /* my $self; # in scope for default argument */
589 if (!invocant && !did_invocant_decl && SvTRUE(spec->shift)) {
592 var = newOP(OP_PADSV, OPf_MOD | (OPpLVAL_INTRO << 8));
593 var->op_targ = pad_add_name_sv(spec->shift, 0, NULL, NULL);
595 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
597 did_invocant_decl = 1;
600 Newx(curdef, 1, DefaultParamSpec);
602 curdef->limit = param_count;
603 curdef->name = param;
605 SAVEDESTRUCTOR_X(free_defspec, curdef);
607 curdef->next = *pdefaults_tail;
608 *pdefaults_tail = curdef;
609 pdefaults_tail = &curdef->next;
611 /* let perl parse the default parameter value */
612 curdef->init = parse_termexpr(0);
615 c = lex_peek_unichar(0);
617 if (sigil == '$' && !defaults) {
627 var = newOP(OP_PADSV, OPf_MOD | (OPpLVAL_INTRO << 8));
628 var->op_targ = pad_add_name_sv(param, 0, NULL, NULL);
630 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
633 if (param_count == 0) {
651 croak("In %"SVf": unexpected EOF in parameter list", SVfARG(declarator));
653 croak("In %"SVf": unexpected '%c' in parameter list", SVfARG(declarator), (int)c);
659 c = lex_peek_unichar(0);
664 c = lex_peek_unichar(0);
666 lex_stuff_pvs(":", 0);
670 if (!(proto = my_scan_parens_tail(aTHX_ FALSE))) {
671 croak("In %"SVf": prototype not terminated", SVfARG(declarator));
673 my_check_prototype(aTHX_ declarator, proto);
675 c = lex_peek_unichar(0);
680 Newx(attrs_sentinel, 1, OP *);
681 *attrs_sentinel = NULL;
682 SAVEDESTRUCTOR_X(free_ptr_op, attrs_sentinel);
684 if (c == ':' || c == '{') /* '}' - hi, vim */ {
686 /* kludge default attributes in */
687 if (SvTRUE(spec->attrs) && SvPV_nolen(spec->attrs)[0] == ':') {
688 lex_stuff_sv(spec->attrs, 0);
695 c = lex_peek_unichar(0);
700 if (!(attr = my_scan_word(aTHX_ FALSE))) {
705 c = lex_peek_unichar(0);
708 if (sv_eq_pvs(attr, "lvalue")) {
709 builtin_attrs |= MY_ATTR_LVALUE;
711 } else if (sv_eq_pvs(attr, "method")) {
712 builtin_attrs |= MY_ATTR_METHOD;
718 if (!(sv = my_scan_parens_tail(aTHX_ TRUE))) {
719 croak("In %"SVf": unterminated attribute parameter in attribute list", SVfARG(declarator));
721 sv_catpvs(attr, "(");
723 sv_catpvs(attr, ")");
726 c = lex_peek_unichar(0);
730 *attrs_sentinel = op_append_elem(OP_LIST, *attrs_sentinel, newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(attr)));
736 c = lex_peek_unichar(0);
743 if (c != '{') /* '}' - hi, vim */ {
744 croak("In %"SVf": I was expecting a function body, not \"%c\"", SVfARG(declarator), (int)c);
747 /* surprise predeclaration! */
749 /* 'sub NAME (PROTO);' to make name/proto known to perl before it
750 starts parsing the body */
751 const I32 sub_ix = start_subparse(FALSE, 0);
752 SAVEFREESV(PL_compcv);
754 SvREFCNT_inc_simple_void(PL_compcv);
758 newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(saw_name)),
759 proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL,
765 if (builtin_attrs & MY_ATTR_LVALUE) {
766 CvLVALUE_on(PL_compcv);
768 if (builtin_attrs & MY_ATTR_METHOD) {
769 CvMETHOD_on(PL_compcv);
771 if (builtin_attrs & MY_ATTR_SPECIAL) {
772 CvSPECIAL_on(PL_compcv);
776 invocant = spec->shift;
778 /* my $self; # wasn't needed yet */
779 if (SvTRUE(invocant) && !did_invocant_decl) {
782 var = newOP(OP_PADSV, OPf_MOD | (OPpLVAL_INTRO << 8));
783 var->op_targ = pad_add_name_sv(invocant, 0, NULL, NULL);
785 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, var));
789 /* min/max argument count checks */
790 if (spec->flags & FLAG_CHECK_NARGS) {
791 if (SvTRUE(invocant)) {
793 if (args_max != -1) {
799 OP *chk, *cond, *err, *croak;
801 err = newSVOP(OP_CONST, 0,
802 newSVpvf("Not enough arguments for %"SVf, SVfARG(declarator)));
804 croak = newCVREF(OPf_WANT_SCALAR,
805 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)));
806 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
807 op_append_elem(OP_LIST, err, croak));
809 cond = newBINOP(OP_LT, 0,
810 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
811 newSVOP(OP_CONST, 0, newSViv(args_min)));
812 chk = newLOGOP(OP_AND, 0, cond, err);
814 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk));
816 if (args_max != -1) {
817 OP *chk, *cond, *err, *croak;
819 err = newSVOP(OP_CONST, 0,
820 newSVpvf("Too many arguments for %"SVf, SVfARG(declarator)));
822 croak = newCVREF(OPf_WANT_SCALAR,
823 newGVOP(OP_GV, 0, gv_fetchpvs("Carp::croak", 0, SVt_PVCV)));
824 err = newUNOP(OP_ENTERSUB, OPf_STACKED,
825 op_append_elem(OP_LIST, err, croak));
827 cond = newBINOP(OP_GT, 0,
828 newAVREF(newGVOP(OP_GV, 0, PL_defgv)),
829 newSVOP(OP_CONST, 0, newSViv(args_max)));
830 chk = newLOGOP(OP_AND, 0, cond, err);
832 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, chk));
837 if (SvTRUE(invocant)) {
840 var = newOP(OP_PADSV, OPf_WANT_SCALAR);
841 var->op_targ = pad_findmy_sv(invocant, 0);
843 shift = newASSIGNOP(OPf_STACKED, var, 0, newOP(OP_SHIFT, 0));
844 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, newSTATEOP(0, NULL, shift));
848 if (params && av_len(params) > -1) {
850 OP *init_param, *left, *right;
853 while ((param = av_shift(params)) != &PL_sv_undef) {
854 OP *const var = newOP(OP_PADSV, OPf_WANT_LIST);
855 var->op_targ = pad_findmy_sv(param, 0);
857 left = op_append_elem(OP_LIST, left, var);
860 left->op_flags |= OPf_PARENS;
861 right = newAVREF(newGVOP(OP_GV, 0, PL_defgv));
862 init_param = newASSIGNOP(OPf_STACKED, left, 0, right);
863 init_param = newSTATEOP(0, NULL, init_param);
865 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, init_param);
871 DefaultParamSpec *dp;
873 for (dp = defaults; dp; dp = dp->next) {
875 OP *var, *args, *cond;
878 var = newOP(OP_PADSV, 0);
879 var->op_targ = pad_findmy_sv(dp->name, 0);
881 /* init = `,var = ,init */
882 init = newASSIGNOP(OPf_STACKED, var, 0, init);
885 args = newAVREF(newGVOP(OP_GV, 0, PL_defgv));
887 /* cond = `,args < ,index */
888 cond = newBINOP(OP_LT, 0, args, newSVOP(OP_CONST, 0, newSViv(dp->limit)));
890 /* init = `,init if ,cond */
891 init = newLOGOP(OP_AND, 0, cond, init);
893 /* gen = `,gen ; ,init */
894 gen = op_append_list(OP_LINESEQ, gen, newSTATEOP(0, NULL, init));
899 *prelude_sentinel = op_append_list(OP_LINESEQ, *prelude_sentinel, gen);
902 /* finally let perl parse the actual subroutine body */
903 body = parse_block(0);
905 /* add '();' to make function return nothing by default */
906 /* (otherwise the invisible parameter initialization can "leak" into
907 the return value: fun ($x) {}->("asdf", 0) == 2) */
908 if (*prelude_sentinel) {
909 body = newSTATEOP(0, NULL, body);
912 body = op_append_list(OP_LINESEQ, *prelude_sentinel, body);
913 *prelude_sentinel = NULL;
917 OP *const attrs = *attrs_sentinel;
918 *attrs_sentinel = NULL;
919 SvREFCNT_inc_simple_void(PL_compcv);
921 /* close outer block: '}' */
922 S_block_end(aTHX_ save_ix, body);
925 *pop = newANONATTRSUB(
927 proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL,
931 return KEYWORD_PLUGIN_EXPR;
936 newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(saw_name)),
937 proto ? newSVOP(OP_CONST, 0, SvREFCNT_inc_simple_NN(proto)) : NULL,
941 *pop = newOP(OP_NULL, 0);
942 return KEYWORD_PLUGIN_STMT;
946 static int my_keyword_plugin(pTHX_ char *keyword_ptr, STRLEN keyword_len, OP **op_ptr) {
952 if (kw_flags(aTHX_ keyword_ptr, keyword_len, &spec)) {
953 ret = parse_fun(aTHX_ op_ptr, keyword_ptr, keyword_len, &spec);
955 ret = next_keyword_plugin(aTHX_ keyword_ptr, keyword_len, op_ptr);
965 MODULE = Function::Parameters PACKAGE = Function::Parameters
970 HV *const stash = gv_stashpvs(MY_PKG, GV_ADD);
972 newCONSTSUB(stash, "FLAG_NAME_OK", newSViv(FLAG_NAME_OK));
973 newCONSTSUB(stash, "FLAG_ANON_OK", newSViv(FLAG_ANON_OK));
974 newCONSTSUB(stash, "FLAG_DEFAULT_ARGS", newSViv(FLAG_DEFAULT_ARGS));
975 newCONSTSUB(stash, "FLAG_CHECK_NARGS", newSViv(FLAG_CHECK_NARGS));
976 newCONSTSUB(stash, "FLAG_INVOCANT", newSViv(FLAG_INVOCANT));
977 newCONSTSUB(stash, "HINTK_KEYWORDS", newSVpvs(HINTK_KEYWORDS));
978 newCONSTSUB(stash, "HINTK_FLAGS_", newSVpvs(HINTK_FLAGS_));
979 newCONSTSUB(stash, "HINTK_SHIFT_", newSVpvs(HINTK_SHIFT_));
980 newCONSTSUB(stash, "HINTK_ATTRS_", newSVpvs(HINTK_ATTRS_));
982 next_keyword_plugin = PL_keyword_plugin;
983 PL_keyword_plugin = my_keyword_plugin;