3 * Copyright (c) 1996 Malcolm Beattie
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
10 #define PERL_NO_GET_CONTEXT
16 typedef PerlIO * InputStream;
18 typedef FILE * InputStream;
22 static const char* const svclassnames[] = {
66 static const char* const opclassnames[] = {
81 static const size_t opsizes[] = {
96 #define MY_CXT_KEY "B::_guts" XS_VERSION
99 int x_walkoptree_debug; /* Flag for walkoptree debug hook */
100 SV * x_specialsv_list[7];
105 #define walkoptree_debug (MY_CXT.x_walkoptree_debug)
106 #define specialsv_list (MY_CXT.x_specialsv_list)
109 cc_opclass(pTHX_ const OP *o)
115 return (o->op_flags & OPf_KIDS) ? OPc_UNOP : OPc_BASEOP;
117 if (o->op_type == OP_SASSIGN)
118 return ((o->op_private & OPpASSIGN_BACKWARDS) ? OPc_UNOP : OPc_BINOP);
120 if (o->op_type == OP_AELEMFAST) {
121 if (o->op_flags & OPf_SPECIAL)
132 if (o->op_type == OP_GV || o->op_type == OP_GVSV ||
133 o->op_type == OP_RCATLINE)
137 switch (PL_opargs[o->op_type] & OA_CLASS_MASK) {
162 case OA_PVOP_OR_SVOP:
164 * Character translations (tr///) are usually a PVOP, keeping a
165 * pointer to a table of shorts used to look up translations.
166 * Under utf8, however, a simple table isn't practical; instead,
167 * the OP is an SVOP, and the SV is a reference to a swash
168 * (i.e., an RV pointing to an HV).
170 return (o->op_private & (OPpTRANS_TO_UTF|OPpTRANS_FROM_UTF))
171 ? OPc_SVOP : OPc_PVOP;
179 case OA_BASEOP_OR_UNOP:
181 * UNI(OP_foo) in toke.c returns token UNI or FUNC1 depending on
182 * whether parens were seen. perly.y uses OPf_SPECIAL to
183 * signal whether a BASEOP had empty parens or none.
184 * Some other UNOPs are created later, though, so the best
185 * test is OPf_KIDS, which is set in newUNOP.
187 return (o->op_flags & OPf_KIDS) ? OPc_UNOP : OPc_BASEOP;
191 * The file stat OPs are created via UNI(OP_foo) in toke.c but use
192 * the OPf_REF flag to distinguish between OP types instead of the
193 * usual OPf_SPECIAL flag. As usual, if OPf_KIDS is set, then we
194 * return OPc_UNOP so that walkoptree can find our children. If
195 * OPf_KIDS is not set then we check OPf_REF. Without OPf_REF set
196 * (no argument to the operator) it's an OP; with OPf_REF set it's
197 * an SVOP (and op_sv is the GV for the filehandle argument).
199 return ((o->op_flags & OPf_KIDS) ? OPc_UNOP :
201 (o->op_flags & OPf_REF) ? OPc_PADOP : OPc_BASEOP);
203 (o->op_flags & OPf_REF) ? OPc_SVOP : OPc_BASEOP);
207 * next, last, redo, dump and goto use OPf_SPECIAL to indicate that a
208 * label was omitted (in which case it's a BASEOP) or else a term was
209 * seen. In this last case, all except goto are definitely PVOP but
210 * goto is either a PVOP (with an ordinary constant label), an UNOP
211 * with OPf_STACKED (with a non-constant non-sub) or an UNOP for
212 * OP_REFGEN (with goto &sub) in which case OPf_STACKED also seems to
215 if (o->op_flags & OPf_STACKED)
217 else if (o->op_flags & OPf_SPECIAL)
222 warn("can't determine class of operator %s, assuming BASEOP\n",
223 PL_op_name[o->op_type]);
228 cc_opclassname(pTHX_ const OP *o)
230 return (char *)opclassnames[cc_opclass(aTHX_ o)];
234 make_sv_object(pTHX_ SV *arg, SV *sv)
236 const char *type = 0;
240 for (iv = 0; iv < sizeof(specialsv_list)/sizeof(SV*); iv++) {
241 if (sv == specialsv_list[iv]) {
247 type = svclassnames[SvTYPE(sv)];
250 sv_setiv(newSVrv(arg, type), iv);
254 #if PERL_VERSION >= 9
256 make_temp_object(pTHX_ SV *arg, SV *temp)
259 const char *const type = svclassnames[SvTYPE(temp)];
260 const IV iv = PTR2IV(temp);
262 target = newSVrv(arg, type);
263 sv_setiv(target, iv);
265 /* Need to keep our "temp" around as long as the target exists.
266 Simplest way seems to be to hang it from magic, and let that clear
267 it up. No vtable, so won't actually get in the way of anything. */
268 sv_magicext(target, temp, PERL_MAGIC_sv, NULL, NULL, 0);
269 /* magic object has had its reference count increased, so we must drop
276 make_warnings_object(pTHX_ SV *arg, STRLEN *warnings)
278 const char *type = 0;
280 IV iv = sizeof(specialsv_list)/sizeof(SV*);
282 /* Counting down is deliberate. Before the split between make_sv_object
283 and make_warnings_obj there appeared to be a bug - Nullsv and pWARN_STD
284 were both 0, so you could never get a B::SPECIAL for pWARN_STD */
287 if ((SV*)warnings == specialsv_list[iv]) {
293 sv_setiv(newSVrv(arg, type), iv);
296 /* B assumes that warnings are a regular SV. Seems easier to keep it
297 happy by making them into a regular SV. */
298 return make_temp_object(aTHX_ arg,
299 newSVpvn((char *)(warnings + 1), *warnings));
304 make_cop_io_object(pTHX_ SV *arg, COP *cop)
306 SV *const value = newSV(0);
308 Perl_emulate_cop_io(aTHX_ cop, value);
311 return make_temp_object(aTHX_ arg, newSVsv(value));
314 return make_sv_object(aTHX_ arg, NULL);
320 make_mg_object(pTHX_ SV *arg, MAGIC *mg)
322 sv_setiv(newSVrv(arg, "B::MAGIC"), PTR2IV(mg));
327 cstring(pTHX_ SV *sv, bool perlstyle)
329 SV *sstr = newSVpvn("", 0);
332 sv_setpvn(sstr, "0", 1);
333 else if (perlstyle && SvUTF8(sv)) {
334 SV *tmpsv = sv_newmortal(); /* Temporary SV to feed sv_uni_display */
335 const STRLEN len = SvCUR(sv);
336 const char *s = sv_uni_display(tmpsv, sv, 8*len, UNI_DISPLAY_QQ);
337 sv_setpvn(sstr,"\"",1);
341 sv_catpvn(sstr, "\\\"", 2);
343 sv_catpvn(sstr, "\\$", 2);
345 sv_catpvn(sstr, "\\@", 2);
348 if (strchr("nrftax\\",*(s+1)))
349 sv_catpvn(sstr, s++, 2);
351 sv_catpvn(sstr, "\\\\", 2);
353 else /* should always be printable */
354 sv_catpvn(sstr, s, 1);
357 sv_catpv(sstr, "\"");
364 const char *s = SvPV(sv, len);
365 sv_catpv(sstr, "\"");
366 for (; len; len--, s++)
368 /* At least try a little for readability */
370 sv_catpv(sstr, "\\\"");
372 sv_catpv(sstr, "\\\\");
373 /* trigraphs - bleagh */
374 else if (!perlstyle && *s == '?' && len>=3 && s[1] == '?') {
375 char escbuff[5]; /* to fit backslash, 3 octals + trailing \0 */
376 sprintf(escbuff, "\\%03o", '?');
377 sv_catpv(sstr, escbuff);
379 else if (perlstyle && *s == '$')
380 sv_catpv(sstr, "\\$");
381 else if (perlstyle && *s == '@')
382 sv_catpv(sstr, "\\@");
384 else if (isPRINT(*s))
386 else if (*s >= ' ' && *s < 127)
388 sv_catpvn(sstr, s, 1);
390 sv_catpv(sstr, "\\n");
392 sv_catpv(sstr, "\\r");
394 sv_catpv(sstr, "\\t");
396 sv_catpv(sstr, "\\a");
398 sv_catpv(sstr, "\\b");
400 sv_catpv(sstr, "\\f");
401 else if (!perlstyle && *s == '\v')
402 sv_catpv(sstr, "\\v");
405 /* Don't want promotion of a signed -1 char in sprintf args */
406 char escbuff[5]; /* to fit backslash, 3 octals + trailing \0 */
407 const unsigned char c = (unsigned char) *s;
408 sprintf(escbuff, "\\%03o", c);
409 sv_catpv(sstr, escbuff);
411 /* XXX Add line breaks if string is long */
413 sv_catpv(sstr, "\"");
421 SV *sstr = newSVpvn("'", 1);
422 const char *s = SvPV_nolen(sv);
425 sv_catpvn(sstr, "\\'", 2);
427 sv_catpvn(sstr, "\\\\", 2);
429 else if (isPRINT(*s))
431 else if (*s >= ' ' && *s < 127)
433 sv_catpvn(sstr, s, 1);
435 sv_catpvn(sstr, "\\n", 2);
437 sv_catpvn(sstr, "\\r", 2);
439 sv_catpvn(sstr, "\\t", 2);
441 sv_catpvn(sstr, "\\a", 2);
443 sv_catpvn(sstr, "\\b", 2);
445 sv_catpvn(sstr, "\\f", 2);
447 sv_catpvn(sstr, "\\v", 2);
450 /* no trigraph support */
451 char escbuff[5]; /* to fit backslash, 3 octals + trailing \0 */
452 /* Don't want promotion of a signed -1 char in sprintf args */
453 unsigned char c = (unsigned char) *s;
454 sprintf(escbuff, "\\%03o", c);
455 sv_catpv(sstr, escbuff);
457 sv_catpvn(sstr, "'", 1);
462 walkoptree(pTHX_ SV *opsv, const char *method)
469 croak("opsv is not a reference");
470 opsv = sv_mortalcopy(opsv);
471 o = INT2PTR(OP*,SvIV((SV*)SvRV(opsv)));
472 if (walkoptree_debug) {
476 perl_call_method("walkoptree_debug", G_DISCARD);
481 perl_call_method(method, G_DISCARD);
482 if (o && (o->op_flags & OPf_KIDS)) {
483 for (kid = ((UNOP*)o)->op_first; kid; kid = kid->op_sibling) {
484 /* Use the same opsv. Rely on methods not to mess it up. */
485 sv_setiv(newSVrv(opsv, cc_opclassname(aTHX_ kid)), PTR2IV(kid));
486 walkoptree(aTHX_ opsv, method);
489 if (o && (cc_opclass(aTHX_ o) == OPc_PMOP) && o->op_type != OP_PUSHRE
490 && (kid = cPMOPo->op_pmreplroot))
492 sv_setiv(newSVrv(opsv, cc_opclassname(aTHX_ kid)), PTR2IV(kid));
493 walkoptree(aTHX_ opsv, method);
498 oplist(pTHX_ OP *o, SV **SP)
500 for(; o; o = o->op_next) {
502 #if PERL_VERSION >= 9
511 opsv = sv_newmortal();
512 sv_setiv(newSVrv(opsv, cc_opclassname(aTHX_ (OP*)o)), PTR2IV(o));
514 switch (o->op_type) {
516 #if PERL_VERSION >= 9
517 SP = oplist(aTHX_ cPMOPo->op_pmstashstartu.op_pmreplstart, SP);
519 SP = oplist(aTHX_ cPMOPo->op_pmreplstart, SP);
523 if (o->op_flags & OPf_STACKED && o->op_flags & OPf_SPECIAL) {
524 OP *kid = cLISTOPo->op_first->op_sibling; /* pass pushmark */
525 kid = kUNOP->op_first; /* pass rv2gv */
526 kid = kUNOP->op_first; /* pass leave */
527 SP = oplist(aTHX_ kid->op_next, SP);
531 switch (PL_opargs[o->op_type] & OA_CLASS_MASK) {
533 SP = oplist(aTHX_ cLOGOPo->op_other, SP);
536 SP = oplist(aTHX_ cLOOPo->op_lastop, SP);
537 SP = oplist(aTHX_ cLOOPo->op_nextop, SP);
538 SP = oplist(aTHX_ cLOOPo->op_redoop, SP);
546 typedef UNOP *B__UNOP;
547 typedef BINOP *B__BINOP;
548 typedef LOGOP *B__LOGOP;
549 typedef LISTOP *B__LISTOP;
550 typedef PMOP *B__PMOP;
551 typedef SVOP *B__SVOP;
552 typedef PADOP *B__PADOP;
553 typedef PVOP *B__PVOP;
554 typedef LOOP *B__LOOP;
572 typedef MAGIC *B__MAGIC;
574 #if PERL_VERSION >= 9
575 typedef struct refcounted_he *B__RHE;
578 MODULE = B PACKAGE = B PREFIX = B_
584 HV *stash = gv_stashpvn("B", 1, GV_ADD);
585 AV *export_ok = perl_get_av("B::EXPORT_OK",TRUE);
587 specialsv_list[0] = Nullsv;
588 specialsv_list[1] = &PL_sv_undef;
589 specialsv_list[2] = &PL_sv_yes;
590 specialsv_list[3] = &PL_sv_no;
591 specialsv_list[4] = (SV *) pWARN_ALL;
592 specialsv_list[5] = (SV *) pWARN_NONE;
593 specialsv_list[6] = (SV *) pWARN_STD;
594 #if PERL_VERSION <= 8
595 # define CVf_ASSERTION 0
596 # define OPpPAD_STATE 0
601 #define B_main_cv() PL_main_cv
602 #define B_init_av() PL_initav
603 #define B_inc_gv() PL_incgv
604 #define B_check_av() PL_checkav_save
606 # define B_unitcheck_av() PL_unitcheckav_save
608 # define B_unitcheck_av() NULL
610 #define B_begin_av() PL_beginav_save
611 #define B_end_av() PL_endav
612 #define B_main_root() PL_main_root
613 #define B_main_start() PL_main_start
614 #define B_amagic_generation() PL_amagic_generation
615 #define B_sub_generation() PL_sub_generation
616 #define B_defstash() PL_defstash
617 #define B_curstash() PL_curstash
618 #define B_dowarn() PL_dowarn
619 #define B_comppadlist() (PL_main_cv ? CvPADLIST(PL_main_cv) : CvPADLIST(PL_compcv))
620 #define B_sv_undef() &PL_sv_undef
621 #define B_sv_yes() &PL_sv_yes
622 #define B_sv_no() &PL_sv_no
623 #define B_formfeed() PL_formfeed
625 #define B_regex_padav() PL_regex_padav
634 #if PERL_VERSION >= 9
667 B_amagic_generation()
699 ST(0) = make_sv_object(aTHX_ sv_newmortal(), PL_warnhook);
704 ST(0) = make_sv_object(aTHX_ sv_newmortal(), PL_diehook);
706 MODULE = B PACKAGE = B
709 walkoptree(opsv, method)
713 walkoptree(aTHX_ opsv, method);
716 walkoptree_debug(...)
719 RETVAL = walkoptree_debug;
720 if (items > 0 && SvTRUE(ST(1)))
721 walkoptree_debug = 1;
725 #define address(sv) PTR2IV(sv)
736 croak("argument is not a reference");
737 RETVAL = (SV*)SvRV(sv);
748 ST(0) = sv_newmortal();
749 if (strncmp(name,"pp_",3) == 0)
751 for (i = 0; i < PL_maxo; i++)
753 if (strcmp(name, PL_op_name[i]) == 0)
759 sv_setiv(ST(0),result);
766 ST(0) = sv_newmortal();
767 if (opnum >= 0 && opnum < PL_maxo) {
768 sv_setpvn(ST(0), "pp_", 3);
769 sv_catpv(ST(0), PL_op_name[opnum]);
778 char hexhash[19]; /* must fit "0xffffffffffffffff" plus trailing \0 */
779 const char *s = SvPV(sv, len);
780 PERL_HASH(hash, s, len);
781 sprintf(hexhash, "0x%"UVxf, (UV)hash);
782 ST(0) = sv_2mortal(newSVpv(hexhash, 0));
784 #define cast_I32(foo) (I32)foo
803 RETVAL = cstring(aTHX_ sv, 0);
811 RETVAL = cstring(aTHX_ sv, 1);
819 RETVAL = cchar(aTHX_ sv);
826 #if PERL_VERSION <= 8
827 # ifdef USE_5005THREADS
829 const STRLEN len = strlen(PL_threadsv_names);
832 for (i = 0; i < len; i++)
833 PUSHs(sv_2mortal(newSVpvn(&PL_threadsv_names[i], 1)));
837 #define OP_next(o) o->op_next
838 #define OP_sibling(o) o->op_sibling
839 #define OP_desc(o) (char *)PL_op_desc[o->op_type]
840 #define OP_targ(o) o->op_targ
841 #define OP_type(o) o->op_type
842 #if PERL_VERSION >= 9
843 # define OP_opt(o) o->op_opt
844 # define OP_static(o) o->op_static
846 # define OP_seq(o) o->op_seq
848 #define OP_flags(o) o->op_flags
849 #define OP_private(o) o->op_private
850 #define OP_spare(o) o->op_spare
852 MODULE = B PACKAGE = B::OP PREFIX = OP_
858 RETVAL = opsizes[cc_opclass(aTHX_ o)];
874 RETVAL = (char *)PL_op_name[o->op_type];
884 SV *sv = sv_newmortal();
886 sv_setpvn(sv, "PL_ppaddr[OP_", 13);
887 sv_catpv(sv, PL_op_name[o->op_type]);
888 for (i=13; (STRLEN)i < SvCUR(sv); ++i)
889 SvPVX(sv)[i] = toUPPER(SvPVX(sv)[i]);
905 #if PERL_VERSION >= 9
931 #if PERL_VERSION >= 9
943 SP = oplist(aTHX_ o, SP);
945 #define UNOP_first(o) o->op_first
947 MODULE = B PACKAGE = B::UNOP PREFIX = UNOP_
953 #define BINOP_last(o) o->op_last
955 MODULE = B PACKAGE = B::BINOP PREFIX = BINOP_
961 #define LOGOP_other(o) o->op_other
963 MODULE = B PACKAGE = B::LOGOP PREFIX = LOGOP_
969 MODULE = B PACKAGE = B::LISTOP PREFIX = LISTOP_
978 for (kid = o->op_first; kid; kid = kid->op_sibling)
984 #define PMOP_pmreplroot(o) o->op_pmreplroot
985 #if PERL_VERSION >= 9
986 # define PMOP_pmreplstart(o) o->op_pmstashstartu.op_pmreplstart
988 # define PMOP_pmreplstart(o) o->op_pmreplstart
990 #define PMOP_pmnext(o) o->op_pmnext
991 #define PMOP_pmregexp(o) PM_GETRE(o)
993 #define PMOP_pmoffset(o) o->op_pmoffset
994 #define PMOP_pmstashpv(o) PmopSTASHPV(o);
996 #define PMOP_pmstash(o) PmopSTASH(o);
998 #define PMOP_pmflags(o) o->op_pmflags
1000 MODULE = B PACKAGE = B::PMOP PREFIX = PMOP_
1007 ST(0) = sv_newmortal();
1008 root = o->op_pmreplroot;
1009 /* OP_PUSHRE stores an SV* instead of an OP* in op_pmreplroot */
1010 if (o->op_type == OP_PUSHRE) {
1012 sv_setiv(ST(0), INT2PTR(PADOFFSET,root) );
1014 sv_setiv(newSVrv(ST(0), root ?
1015 svclassnames[SvTYPE((SV*)root)] : "B::SV"),
1020 sv_setiv(newSVrv(ST(0), cc_opclassname(aTHX_ root)), PTR2IV(root));
1027 #if PERL_VERSION < 9
1060 REGEXP * rx = NO_INIT
1062 ST(0) = sv_newmortal();
1065 sv_setpvn(ST(0), rx->precomp, rx->prelen);
1070 REGEXP * rx = NO_INIT
1072 ST(0) = sv_newmortal();
1075 sv_setuv(ST(0), rx->extflags);
1077 #define SVOP_sv(o) cSVOPo->op_sv
1078 #define SVOP_gv(o) ((GV*)cSVOPo->op_sv)
1080 MODULE = B PACKAGE = B::SVOP PREFIX = SVOP_
1090 #define PADOP_padix(o) o->op_padix
1091 #define PADOP_sv(o) (o->op_padix ? PAD_SVl(o->op_padix) : Nullsv)
1092 #define PADOP_gv(o) ((o->op_padix \
1093 && SvTYPE(PAD_SVl(o->op_padix)) == SVt_PVGV) \
1094 ? (GV*)PAD_SVl(o->op_padix) : Nullgv)
1096 MODULE = B PACKAGE = B::PADOP PREFIX = PADOP_
1110 MODULE = B PACKAGE = B::PVOP PREFIX = PVOP_
1117 * OP_TRANS uses op_pv to point to a table of 256 or >=258 shorts
1118 * whereas other PVOPs point to a null terminated string.
1120 if (o->op_type == OP_TRANS &&
1121 (o->op_private & OPpTRANS_COMPLEMENT) &&
1122 !(o->op_private & OPpTRANS_DELETE))
1124 const short* const tbl = (short*)o->op_pv;
1125 const short entries = 257 + tbl[256];
1126 ST(0) = sv_2mortal(newSVpv(o->op_pv, entries * sizeof(short)));
1128 else if (o->op_type == OP_TRANS) {
1129 ST(0) = sv_2mortal(newSVpv(o->op_pv, 256 * sizeof(short)));
1132 ST(0) = sv_2mortal(newSVpv(o->op_pv, 0));
1134 #define LOOP_redoop(o) o->op_redoop
1135 #define LOOP_nextop(o) o->op_nextop
1136 #define LOOP_lastop(o) o->op_lastop
1138 MODULE = B PACKAGE = B::LOOP PREFIX = LOOP_
1153 #define COP_label(o) o->cop_label
1154 #define COP_stashpv(o) CopSTASHPV(o)
1155 #define COP_stash(o) CopSTASH(o)
1156 #define COP_file(o) CopFILE(o)
1157 #define COP_filegv(o) CopFILEGV(o)
1158 #define COP_cop_seq(o) o->cop_seq
1159 #define COP_arybase(o) CopARYBASE_get(o)
1160 #define COP_line(o) CopLINE(o)
1161 #define COP_hints(o) CopHINTS_get(o)
1162 #if PERL_VERSION < 9
1163 # define COP_warnings(o) o->cop_warnings
1164 # define COP_io(o) o->cop_io
1167 MODULE = B PACKAGE = B::COP PREFIX = COP_
1202 #if PERL_VERSION >= 9
1208 ST(0) = make_warnings_object(aTHX_ sv_newmortal(), o->cop_warnings);
1215 ST(0) = make_cop_io_object(aTHX_ sv_newmortal(), o);
1222 RETVAL = o->cop_hints_hash;
1242 MODULE = B PACKAGE = B::SV
1248 #define object_2svref(sv) sv
1255 MODULE = B PACKAGE = B::SV PREFIX = Sv
1277 MODULE = B PACKAGE = B::IV PREFIX = Sv
1292 MODULE = B PACKAGE = B::IV
1294 #define needs64bits(sv) ((I32)SvIVX(sv) != SvIVX(sv))
1304 if (sizeof(IV) == 8) {
1306 const IV iv = SvIVX(sv);
1308 * The following way of spelling 32 is to stop compilers on
1309 * 32-bit architectures from moaning about the shift count
1310 * being >= the width of the type. Such architectures don't
1311 * reach this code anyway (unless sizeof(IV) > 8 but then
1312 * everything else breaks too so I'm not fussed at the moment).
1315 wp[0] = htonl(((UV)iv) >> (sizeof(UV)*4));
1317 wp[0] = htonl(((U32)iv) >> (sizeof(UV)*4));
1319 wp[1] = htonl(iv & 0xffffffff);
1320 ST(0) = sv_2mortal(newSVpvn((char *)wp, 8));
1322 U32 w = htonl((U32)SvIVX(sv));
1323 ST(0) = sv_2mortal(newSVpvn((char *)&w, 4));
1326 MODULE = B PACKAGE = B::NV PREFIX = Sv
1337 COP_SEQ_RANGE_LOW(sv)
1341 COP_SEQ_RANGE_HIGH(sv)
1345 PARENT_PAD_INDEX(sv)
1349 PARENT_FAKELEX_FLAGS(sv)
1352 MODULE = B PACKAGE = B::RV PREFIX = Sv
1358 MODULE = B PACKAGE = B::PV PREFIX = Sv
1372 croak( "argument is not SvROK" );
1381 ST(0) = sv_newmortal();
1383 /* FIXME - we need a better way for B to identify PVs that are
1384 in the pads as variable names. */
1385 if((SvLEN(sv) && SvCUR(sv) >= SvLEN(sv))) {
1386 /* It claims to be longer than the space allocated for it -
1387 presuambly it's a variable name in the pad */
1388 sv_setpv(ST(0), SvPV_nolen_const(sv));
1390 sv_setpvn(ST(0), SvPVX_const(sv), SvCUR(sv));
1392 SvFLAGS(ST(0)) |= SvUTF8(sv);
1395 /* XXX for backward compatibility, but should fail */
1396 /* croak( "argument is not SvPOK" ); */
1397 sv_setpvn(ST(0), NULL, 0);
1400 # This used to read 257. I think that that was buggy - should have been 258.
1401 # (The "\0", the flags byte, and 256 for the table. Not that anything
1402 # anywhere calls this method. NWC.
1407 ST(0) = sv_newmortal();
1408 sv_setpvn(ST(0), SvPVX_const(sv),
1409 SvCUR(sv) + (SvVALID(sv) ? 256 + PERL_FBM_TABLE_OFFSET : 0));
1420 MODULE = B PACKAGE = B::PVMG PREFIX = Sv
1425 MAGIC * mg = NO_INIT
1427 for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic)
1428 XPUSHs(make_mg_object(aTHX_ sv_newmortal(), mg));
1430 MODULE = B PACKAGE = B::PVMG
1436 #define MgMOREMAGIC(mg) mg->mg_moremagic
1437 #define MgPRIVATE(mg) mg->mg_private
1438 #define MgTYPE(mg) mg->mg_type
1439 #define MgFLAGS(mg) mg->mg_flags
1440 #define MgOBJ(mg) mg->mg_obj
1441 #define MgLENGTH(mg) mg->mg_len
1442 #define MgREGEX(mg) PTR2IV(mg->mg_obj)
1444 MODULE = B PACKAGE = B::MAGIC PREFIX = Mg
1450 if( MgMOREMAGIC(mg) ) {
1451 RETVAL = MgMOREMAGIC(mg);
1479 if(mg->mg_type == PERL_MAGIC_qr) {
1480 RETVAL = MgREGEX(mg);
1483 croak( "REGEX is only meaningful on r-magic" );
1492 if (mg->mg_type == PERL_MAGIC_qr) {
1493 REGEXP* rx = (REGEXP*)mg->mg_obj;
1496 RETVAL = newSVpvn( rx->precomp, rx->prelen );
1499 croak( "precomp is only meaningful on r-magic" );
1512 ST(0) = sv_newmortal();
1514 if (mg->mg_len >= 0){
1515 sv_setpvn(ST(0), mg->mg_ptr, mg->mg_len);
1516 } else if (mg->mg_len == HEf_SVKEY) {
1517 ST(0) = make_sv_object(aTHX_
1518 sv_newmortal(), (SV*)mg->mg_ptr);
1522 MODULE = B PACKAGE = B::PVLV PREFIX = Lv
1540 MODULE = B PACKAGE = B::BM PREFIX = Bm
1557 STRLEN len = NO_INIT
1558 char * str = NO_INIT
1560 str = SvPV(sv, len);
1561 /* Boyer-Moore table is just after string and its safety-margin \0 */
1562 ST(0) = sv_2mortal(newSVpvn(str + len + PERL_FBM_TABLE_OFFSET, 256));
1564 MODULE = B PACKAGE = B::GV PREFIX = Gv
1570 ST(0) = sv_2mortal(newSVpvn(GvNAME(gv), GvNAMELEN(gv)));
1576 RETVAL = GvGP(gv) == Null(GP*);
1600 RETVAL = (SV*)GvFORM(gv);
1636 MODULE = B PACKAGE = B::GV
1646 MODULE = B PACKAGE = B::IO PREFIX = Io
1699 if( strEQ( name, "stdin" ) ) {
1700 handle = PerlIO_stdin();
1702 else if( strEQ( name, "stdout" ) ) {
1703 handle = PerlIO_stdout();
1705 else if( strEQ( name, "stderr" ) ) {
1706 handle = PerlIO_stderr();
1709 croak( "Invalid value '%s'", name );
1711 RETVAL = handle == IoIFP(io);
1715 MODULE = B PACKAGE = B::IO
1725 MODULE = B PACKAGE = B::AV PREFIX = Av
1735 #if PERL_VERSION < 9
1738 #define AvOFF(av) ((XPVAV*)SvANY(av))->xof_off
1750 if (AvFILL(av) >= 0) {
1751 SV **svp = AvARRAY(av);
1753 for (i = 0; i <= AvFILL(av); i++)
1754 XPUSHs(make_sv_object(aTHX_ sv_newmortal(), svp[i]));
1762 if (idx >= 0 && AvFILL(av) >= 0 && idx <= AvFILL(av))
1763 XPUSHs(make_sv_object(aTHX_ sv_newmortal(), (AvARRAY(av)[idx])));
1765 XPUSHs(make_sv_object(aTHX_ sv_newmortal(), NULL));
1767 #if PERL_VERSION < 9
1769 MODULE = B PACKAGE = B::AV
1777 MODULE = B PACKAGE = B::FM PREFIX = Fm
1783 MODULE = B PACKAGE = B::CV PREFIX = Cv
1797 RETVAL = CvISXSUB(cv) ? NULL : CvSTART(cv);
1805 RETVAL = CvISXSUB(cv) ? NULL : CvROOT(cv);
1837 ST(0) = sv_2mortal(newSViv(CvISXSUB(cv) ? PTR2IV(CvXSUB(cv)) : 0));
1844 ST(0) = CvCONST(cv) ?
1845 make_sv_object(aTHX_ sv_newmortal(),(SV *)CvXSUBANY(cv).any_ptr) :
1846 sv_2mortal(newSViv(CvISXSUB(cv) ? CvXSUBANY(cv).any_iv : 0));
1848 MODULE = B PACKAGE = B::CV
1854 MODULE = B PACKAGE = B::CV PREFIX = cv_
1861 MODULE = B PACKAGE = B::HV PREFIX = Hv
1883 #if PERL_VERSION < 9
1895 if (HvKEYS(hv) > 0) {
1899 (void)hv_iterinit(hv);
1900 EXTEND(sp, HvKEYS(hv) * 2);
1901 while ((sv = hv_iternextsv(hv, &key, &len))) {
1902 PUSHs(newSVpvn(key, len));
1903 PUSHs(make_sv_object(aTHX_ sv_newmortal(), sv));
1907 MODULE = B PACKAGE = B::HE PREFIX = He
1921 MODULE = B PACKAGE = B::RHE PREFIX = RHE_
1923 #if PERL_VERSION >= 9
1929 RETVAL = newRV( (SV*)Perl_refcounted_he_chain_2hv(aTHX_ h) );