* The main guts of traverse_isa was actually copied from gv_fetchmeth
*/
+#define PERL_ARGS_ASSERT_ISA_LOOKUP \
+ assert(stash); \
+ assert(namesv || name)
+
+
STATIC bool
-S_isa_lookup(pTHX_ HV *stash, const char * const name, STRLEN len, U32 flags)
+S_isa_lookup(pTHX_ HV *stash, SV *namesv, const char * name, STRLEN len, U32 flags)
{
const struct mro_meta *const meta = HvMROMETA(stash);
HV *isa = meta->isa;
isa = meta->isa;
}
- if (hv_common(isa, NULL, name, len, ( flags & SVf_UTF8 ? HVhek_UTF8 : 0),
+ if (hv_common(isa, namesv, name, len, ( flags & SVf_UTF8 ? HVhek_UTF8 : 0),
HV_FETCH_ISEXISTS, NULL, 0)) {
/* Direct name lookup worked. */
return TRUE;
/* A stash/class can go by many names (ie. User == main::User), so
we use the HvENAME in the stash itself, which is canonical, falling
back to HvNAME if necessary. */
- our_stash = gv_stashpvn(name, len, flags);
+ our_stash = gv_stashsvpvn_cached(namesv, name, len, flags);
if (our_stash) {
HEK *canon_name = HvENAME_HEK(our_stash);
return FALSE;
}
+#define PERL_ARGS_ASSERT_SV_DERIVED_FROM_SVPVN \
+ assert(sv); \
+ assert(namesv || name)
+
+STATIC bool
+S_sv_derived_from_svpvn(pTHX_ SV *sv, SV *namesv, const char * name, const STRLEN len, U32 flags)
+{
+ HV* stash;
+
+ PERL_ARGS_ASSERT_SV_DERIVED_FROM_SVPVN;
+ SvGETMAGIC(sv);
+
+ if (SvROK(sv)) {
+ const char *type;
+ sv = SvRV(sv);
+ type = sv_reftype(sv,0);
+ if (type) {
+ if (namesv)
+ name = SvPV_nolen(namesv);
+ if (strEQ(name, type))
+ return TRUE;
+ }
+ if (!SvOBJECT(sv))
+ return FALSE;
+ stash = SvSTASH(sv);
+ }
+ else {
+ stash = gv_stashsv(sv, 0);
+ }
+
+ if (stash && isa_lookup(stash, namesv, name, len, flags))
+ return TRUE;
+
+ stash = gv_stashpvs("UNIVERSAL", 0);
+ return stash && isa_lookup(stash, namesv, name, len, flags);
+}
+
/*
=head1 SV Manipulation Functions
=for apidoc sv_derived_from_sv
Exactly like L</sv_derived_from_pvn>, but takes the name string in the form
-of an SV instead of a string/length pair.
+of an SV instead of a string/length pair. This is the advised form.
=cut
bool
Perl_sv_derived_from_sv(pTHX_ SV *sv, SV *namesv, U32 flags)
{
- char *namepv;
- STRLEN namelen;
PERL_ARGS_ASSERT_SV_DERIVED_FROM_SV;
- namepv = SvPV(namesv, namelen);
- if (SvUTF8(namesv))
- flags |= SVf_UTF8;
- return sv_derived_from_pvn(sv, namepv, namelen, flags);
+ return sv_derived_from_svpvn(sv, namesv, NULL, 0, flags);
}
/*
Perl_sv_derived_from(pTHX_ SV *sv, const char *const name)
{
PERL_ARGS_ASSERT_SV_DERIVED_FROM;
- return sv_derived_from_pvn(sv, name, strlen(name), 0);
+ return sv_derived_from_svpvn(sv, NULL, name, strlen(name), 0);
}
/*
Perl_sv_derived_from_pv(pTHX_ SV *sv, const char *const name, U32 flags)
{
PERL_ARGS_ASSERT_SV_DERIVED_FROM_PV;
- return sv_derived_from_pvn(sv, name, strlen(name), flags);
+ return sv_derived_from_svpvn(sv, NULL, name, strlen(name), flags);
}
bool
Perl_sv_derived_from_pvn(pTHX_ SV *sv, const char *const name, const STRLEN len, U32 flags)
{
- HV *stash;
-
PERL_ARGS_ASSERT_SV_DERIVED_FROM_PVN;
+ return sv_derived_from_svpvn(sv, NULL, name, len, flags);
+}
- SvGETMAGIC(sv);
+/*
+=for apidoc sv_isa_sv
- if (SvROK(sv)) {
- const char *type;
- sv = SvRV(sv);
- type = sv_reftype(sv,0);
- if (type && strEQ(type,name))
- return TRUE;
- if (!SvOBJECT(sv))
- return FALSE;
- stash = SvSTASH(sv);
- }
- else {
- stash = gv_stashsv(sv, 0);
+Returns a boolean indicating whether the SV is an object reference and is
+derived from the specified class, respecting any C<isa()> method overloading
+it may have. Returns false if C<sv> is not a reference to an object, or is
+not derived from the specified class.
+
+This is the function used to implement the behaviour of the C<isa> operator.
+
+Does not invoke magic on C<sv>.
+
+Not to be confused with the older C<sv_isa> function, which does not use an
+overloaded C<isa()> method, nor will check subclassing.
+
+=cut
+
+*/
+
+bool
+Perl_sv_isa_sv(pTHX_ SV *sv, SV *namesv)
+{
+ GV *isagv;
+
+ PERL_ARGS_ASSERT_SV_ISA_SV;
+
+ if(!SvROK(sv) || !SvOBJECT(SvRV(sv)))
+ return FALSE;
+
+ /* This abuse of gv_fetchmeth_pv() with level = 1 skips the UNIVERSAL
+ * lookup
+ * TODO: Consider if we want a NOUNIVERSAL flag for requesting this in a
+ * more obvious way
+ */
+ isagv = gv_fetchmeth_pvn(SvSTASH(SvRV(sv)), "isa", 3, 1, 0);
+ if(isagv) {
+ dSP;
+ CV *isacv = isGV(isagv) ? GvCV(isagv) : (CV *)isagv;
+ SV *retsv;
+ bool ret;
+
+ PUTBACK;
+
+ ENTER;
+ SAVETMPS;
+
+ EXTEND(SP, 2);
+ PUSHMARK(SP);
+ PUSHs(sv);
+ PUSHs(namesv);
+ PUTBACK;
+
+ call_sv((SV *)isacv, G_SCALAR);
+
+ SPAGAIN;
+ retsv = POPs;
+ ret = SvTRUE(retsv);
+ PUTBACK;
+
+ FREETMPS;
+ LEAVE;
+
+ return ret;
}
- if (stash && isa_lookup(stash, name, len, flags))
- return TRUE;
+ /* TODO: Support namesv being an HV ref to the stash directly? */
- stash = gv_stashpvs("UNIVERSAL", 0);
- return stash && isa_lookup(stash, name, len, flags);
+ return sv_derived_from_sv(sv, namesv, 0);
}
/*
NOT_REACHED; /* NOTREACHED */
}
+#ifdef HAS_GETCWD
+
+XS(XS_Internals_getcwd)
+{
+ dXSARGS;
+ SV *sv = sv_newmortal();
+
+ if (items != 0)
+ croak_xs_usage(cv, "");
+
+ (void)getcwd_sv(sv);
+
+ SvTAINTED_on(sv);
+ PUSHs(sv);
+ XSRETURN(1);
+}
+
+#endif
+
+XS(XS_NamedCapture_tie_it)
+{
+ dXSARGS;
+
+ if (items != 1)
+ croak_xs_usage(cv, "sv");
+ {
+ SV *sv = ST(0);
+ GV * const gv = (GV *)sv;
+ HV * const hv = GvHVn(gv);
+ SV *rv = newSV_type(SVt_IV);
+ const char *gv_name = GvNAME(gv);
+
+ SvRV_set(rv, newSVuv(
+ strEQ(gv_name, "-") || strEQ(gv_name, "\003APTURE_ALL")
+ ? RXapif_ALL : RXapif_ONE));
+ SvROK_on(rv);
+ sv_bless(rv, GvSTASH(CvGV(cv)));
+
+ sv_unmagic((SV *)hv, PERL_MAGIC_tied);
+ sv_magic((SV *)hv, rv, PERL_MAGIC_tied, NULL, 0);
+ SvREFCNT_dec(rv); /* As sv_magic increased it by one. */
+ }
+ XSRETURN_EMPTY;
+}
+
+XS(XS_NamedCapture_TIEHASH)
+{
+ dVAR; dXSARGS;
+ if (items < 1)
+ croak_xs_usage(cv, "package, ...");
+ {
+ const char * package = (const char *)SvPV_nolen(ST(0));
+ UV flag = RXapif_ONE;
+ mark += 2;
+ while(mark < sp) {
+ STRLEN len;
+ const char *p = SvPV_const(*mark, len);
+ if(memEQs(p, len, "all"))
+ flag = SvTRUE(mark[1]) ? RXapif_ALL : RXapif_ONE;
+ mark += 2;
+ }
+ ST(0) = sv_2mortal(newSV_type(SVt_IV));
+ sv_setuv(newSVrv(ST(0), package), flag);
+ }
+ XSRETURN(1);
+}
+
+/* These are tightly coupled to the RXapif_* flags defined in regexp.h */
+#define UNDEF_FATAL 0x80000
+#define DISCARD 0x40000
+#define EXPECT_SHIFT 24
+#define ACTION_MASK 0x000FF
+
+#define FETCH_ALIAS (RXapif_FETCH | (2 << EXPECT_SHIFT))
+#define STORE_ALIAS (RXapif_STORE | (3 << EXPECT_SHIFT) | UNDEF_FATAL | DISCARD)
+#define DELETE_ALIAS (RXapif_DELETE | (2 << EXPECT_SHIFT) | UNDEF_FATAL)
+#define CLEAR_ALIAS (RXapif_CLEAR | (1 << EXPECT_SHIFT) | UNDEF_FATAL | DISCARD)
+#define EXISTS_ALIAS (RXapif_EXISTS | (2 << EXPECT_SHIFT))
+#define SCALAR_ALIAS (RXapif_SCALAR | (1 << EXPECT_SHIFT))
+
+XS(XS_NamedCapture_FETCH)
+{
+ dVAR; dXSARGS;
+ dXSI32;
+ PERL_UNUSED_VAR(cv); /* -W */
+ PERL_UNUSED_VAR(ax); /* -Wall */
+ SP -= items;
+ {
+ REGEXP *const rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+ U32 flags;
+ SV *ret;
+ const U32 action = ix & ACTION_MASK;
+ const int expect = ix >> EXPECT_SHIFT;
+ if (items != expect)
+ croak_xs_usage(cv, expect == 2 ? "$key"
+ : (expect == 3 ? "$key, $value"
+ : ""));
+
+ if (!rx || !SvROK(ST(0))) {
+ if (ix & UNDEF_FATAL)
+ Perl_croak_no_modify();
+ else
+ XSRETURN_UNDEF;
+ }
+
+ flags = (U32)SvUV(SvRV(MUTABLE_SV(ST(0))));
+
+ PUTBACK;
+ ret = RX_ENGINE(rx)->named_buff(aTHX_ (rx), expect >= 2 ? ST(1) : NULL,
+ expect >= 3 ? ST(2) : NULL, flags | action);
+ SPAGAIN;
+
+ if (ix & DISCARD) {
+ /* Called with G_DISCARD, so our return stack state is thrown away.
+ Hence if we were returned anything, free it immediately. */
+ SvREFCNT_dec(ret);
+ } else {
+ PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef);
+ }
+ PUTBACK;
+ return;
+ }
+}
+
+
+XS(XS_NamedCapture_FIRSTKEY)
+{
+ dVAR; dXSARGS;
+ dXSI32;
+ PERL_UNUSED_VAR(cv); /* -W */
+ PERL_UNUSED_VAR(ax); /* -Wall */
+ SP -= items;
+ {
+ REGEXP *const rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+ U32 flags;
+ SV *ret;
+ const int expect = ix ? 2 : 1;
+ const U32 action = ix ? RXapif_NEXTKEY : RXapif_FIRSTKEY;
+ if (items != expect)
+ croak_xs_usage(cv, expect == 2 ? "$lastkey" : "");
+
+ if (!rx || !SvROK(ST(0)))
+ XSRETURN_UNDEF;
+
+ flags = (U32)SvUV(SvRV(MUTABLE_SV(ST(0))));
+
+ PUTBACK;
+ ret = RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx),
+ expect >= 2 ? ST(1) : NULL,
+ flags | action);
+ SPAGAIN;
+
+ PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef);
+ PUTBACK;
+ return;
+ }
+}
+
+/* is this still needed? */
+XS(XS_NamedCapture_flags)
+{
+ dVAR; dXSARGS;
+ PERL_UNUSED_VAR(cv); /* -W */
+ PERL_UNUSED_VAR(ax); /* -Wall */
+ SP -= items;
+ {
+ EXTEND(SP, 2);
+ mPUSHu(RXapif_ONE);
+ mPUSHu(RXapif_ALL);
+ PUTBACK;
+ return;
+ }
+}
+
#include "vutil.h"
#include "vxs.inc"
const char *name;
XSUBADDR_t xsub;
const char *proto;
+ int ix;
};
static const struct xsub_details these_details[] = {
- {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL},
- {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL},
- {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL},
+ {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL, 0 },
+ {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL, 0 },
+ {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL, 0 },
#define VXS_XSUB_DETAILS
#include "vxs.inc"
#undef VXS_XSUB_DETAILS
- {"utf8::is_utf8", XS_utf8_is_utf8, NULL},
- {"utf8::valid", XS_utf8_valid, NULL},
- {"utf8::encode", XS_utf8_encode, NULL},
- {"utf8::decode", XS_utf8_decode, NULL},
- {"utf8::upgrade", XS_utf8_upgrade, NULL},
- {"utf8::downgrade", XS_utf8_downgrade, NULL},
- {"utf8::native_to_unicode", XS_utf8_native_to_unicode, NULL},
- {"utf8::unicode_to_native", XS_utf8_unicode_to_native, NULL},
- {"Internals::SvREADONLY", XS_Internals_SvREADONLY, "\\[$%@];$"},
- {"Internals::SvREFCNT", XS_Internals_SvREFCNT, "\\[$%@];$"},
- {"Internals::hv_clear_placeholders", XS_Internals_hv_clear_placehold, "\\%"},
- {"constant::_make_const", XS_constant__make_const, "\\[$@]"},
- {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@"},
- {"re::is_regexp", XS_re_is_regexp, "$"},
- {"re::regname", XS_re_regname, ";$$"},
- {"re::regnames", XS_re_regnames, ";$"},
- {"re::regnames_count", XS_re_regnames_count, ""},
- {"re::regexp_pattern", XS_re_regexp_pattern, "$"},
+ {"utf8::is_utf8", XS_utf8_is_utf8, NULL, 0 },
+ {"utf8::valid", XS_utf8_valid, NULL, 0 },
+ {"utf8::encode", XS_utf8_encode, NULL, 0 },
+ {"utf8::decode", XS_utf8_decode, NULL, 0 },
+ {"utf8::upgrade", XS_utf8_upgrade, NULL, 0 },
+ {"utf8::downgrade", XS_utf8_downgrade, NULL, 0 },
+ {"utf8::native_to_unicode", XS_utf8_native_to_unicode, NULL, 0 },
+ {"utf8::unicode_to_native", XS_utf8_unicode_to_native, NULL, 0 },
+ {"Internals::SvREADONLY", XS_Internals_SvREADONLY, "\\[$%@];$", 0 },
+ {"Internals::SvREFCNT", XS_Internals_SvREFCNT, "\\[$%@];$", 0 },
+ {"Internals::hv_clear_placeholders", XS_Internals_hv_clear_placehold, "\\%", 0 },
+ {"constant::_make_const", XS_constant__make_const, "\\[$@]", 0 },
+ {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@", 0 },
+ {"re::is_regexp", XS_re_is_regexp, "$", 0 },
+ {"re::regname", XS_re_regname, ";$$", 0 },
+ {"re::regnames", XS_re_regnames, ";$", 0 },
+ {"re::regnames_count", XS_re_regnames_count, "", 0 },
+ {"re::regexp_pattern", XS_re_regexp_pattern, "$", 0 },
+#ifdef HAS_GETCWD
+ {"Internals::getcwd", XS_Internals_getcwd, "", 0 },
+#endif
+ {"Tie::Hash::NamedCapture::_tie_it", XS_NamedCapture_tie_it, NULL, 0 },
+ {"Tie::Hash::NamedCapture::TIEHASH", XS_NamedCapture_TIEHASH, NULL, 0 },
+ {"Tie::Hash::NamedCapture::FETCH", XS_NamedCapture_FETCH, NULL, FETCH_ALIAS },
+ {"Tie::Hash::NamedCapture::STORE", XS_NamedCapture_FETCH, NULL, STORE_ALIAS },
+ {"Tie::Hash::NamedCapture::DELETE", XS_NamedCapture_FETCH, NULL, DELETE_ALIAS },
+ {"Tie::Hash::NamedCapture::CLEAR", XS_NamedCapture_FETCH, NULL, CLEAR_ALIAS },
+ {"Tie::Hash::NamedCapture::EXISTS", XS_NamedCapture_FETCH, NULL, EXISTS_ALIAS },
+ {"Tie::Hash::NamedCapture::SCALAR", XS_NamedCapture_FETCH, NULL, SCALAR_ALIAS },
+ {"Tie::Hash::NamedCapture::FIRSTKEY", XS_NamedCapture_FIRSTKEY, NULL, 0 },
+ {"Tie::Hash::NamedCapture::NEXTKEY", XS_NamedCapture_FIRSTKEY, NULL, 1 },
+ {"Tie::Hash::NamedCapture::flags", XS_NamedCapture_flags, NULL, 0 },
};
STATIC OP*
const struct xsub_details *end = C_ARRAY_END(these_details);
do {
- newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0);
+ CV *cv = newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0);
+ XSANY.any_i32 = xsub->ix;
} while (++xsub < end);
#ifndef EBCDIC
https://perl5.git.perl.org / perl5.git / blobdiff