X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/d60ecbe5204b1d5c06464db2b54d51236d8a45d0..16eb5365105fd7ab1815c325059d04765892205f:/universal.c diff --git a/universal.c b/universal.c index 24621d2..35d1bcc 100644 --- a/universal.c +++ b/universal.c @@ -1,7 +1,7 @@ /* universal.c * - * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, - * by Larry Wall and others + * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, + * 2005, 2006, 2007, 2008 by Larry Wall and others * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. @@ -9,9 +9,20 @@ */ /* - * "The roots of those mountains must be roots indeed; there must be - * great secrets buried there which have not been discovered since the - * beginning." --Gandalf, relating Gollum's story + * '"The roots of those mountains must be roots indeed; there must be + * great secrets buried there which have not been discovered since the + * beginning."' --Gandalf, relating Gollum's history + * + * [p.54 of _The Lord of the Rings_, I/ii: "The Shadow of the Past"] + */ + +/* This file contains the code that implements the functions in Perl's + * UNIVERSAL package, such as UNIVERSAL->can(). + * + * It is also used to store XS functions that need to be present in + * miniperl for a lack of a better place to put them. It might be + * clever to move them to separate XS files which would then be pulled + * in by some to-be-written build process. */ #include "EXTERN.h" @@ -27,93 +38,46 @@ * The main guts of traverse_isa was actually copied from gv_fetchmeth */ -STATIC SV * -S_isa_lookup(pTHX_ HV *stash, const char *name, HV* name_stash, - int len, int level) +STATIC bool +S_isa_lookup(pTHX_ HV *stash, const char * const name) { - AV* av; - GV* gv; - GV** gvp; - HV* hv = Nullhv; - SV* subgen = Nullsv; - - /* A stash/class can go by many names (ie. User == main::User), so - we compare the stash itself just in case */ - if (name_stash && (stash == name_stash)) - return &PL_sv_yes; - - if (strEQ(HvNAME(stash), name)) - return &PL_sv_yes; - - if (level > 100) - Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'", - HvNAME(stash)); + dVAR; + const struct mro_meta *const meta = HvMROMETA(stash); + HV *isa = meta->isa; + STRLEN len = strlen(name); + const HV *our_stash; - gvp = (GV**)hv_fetch(stash, "::ISA::CACHE::", 14, FALSE); + PERL_ARGS_ASSERT_ISA_LOOKUP; - if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (subgen = GvSV(gv)) - && (hv = GvHV(gv))) - { - if (SvIV(subgen) == (IV)PL_sub_generation) { - SV* sv; - SV** svp = (SV**)hv_fetch(hv, name, len, FALSE); - if (svp && (sv = *svp) != (SV*)&PL_sv_undef) { - DEBUG_o( Perl_deb(aTHX_ "Using cached ISA %s for package %s\n", - name, HvNAME(stash)) ); - return sv; - } - } - else { - DEBUG_o( Perl_deb(aTHX_ "ISA Cache in package %s is stale\n", - HvNAME(stash)) ); - hv_clear(hv); - sv_setiv(subgen, PL_sub_generation); - } + if (!isa) { + (void)mro_get_linear_isa(stash); + isa = meta->isa; } - gvp = (GV**)hv_fetch(stash,"ISA",3,FALSE); - - if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (av = GvAV(gv))) { - if (!hv || !subgen) { - gvp = (GV**)hv_fetch(stash, "::ISA::CACHE::", 14, TRUE); - - gv = *gvp; - - if (SvTYPE(gv) != SVt_PVGV) - gv_init(gv, stash, "::ISA::CACHE::", 14, TRUE); + if (hv_common(isa, NULL, name, len, 0 /* No "UTF-8" flag possible with only + a char * argument*/, + HV_FETCH_ISEXISTS, NULL, 0)) { + /* Direct name lookup worked. */ + return TRUE; + } - if (!hv) - hv = GvHVn(gv); - if (!subgen) { - subgen = newSViv(PL_sub_generation); - GvSV(gv) = subgen; - } - } - if (hv) { - SV** svp = AvARRAY(av); - /* NOTE: No support for tied ISA */ - I32 items = AvFILLp(av) + 1; - while (items--) { - SV* sv = *svp++; - HV* basestash = gv_stashsv(sv, FALSE); - if (!basestash) { - if (ckWARN(WARN_MISC)) - Perl_warner(aTHX_ packWARN(WARN_SYNTAX), - "Can't locate package %"SVf" for @%s::ISA", - sv, HvNAME(stash)); - continue; - } - if (&PL_sv_yes == isa_lookup(basestash, name, name_stash, - len, level + 1)) { - (void)hv_store(hv,name,len,&PL_sv_yes,0); - return &PL_sv_yes; - } - } - (void)hv_store(hv,name,len,&PL_sv_no,0); + /* 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, 0); + + if (our_stash) { + HEK *canon_name = HvENAME_HEK(our_stash); + if (!canon_name) canon_name = HvNAME_HEK(our_stash); + + if (hv_common(isa, NULL, HEK_KEY(canon_name), HEK_LEN(canon_name), + HEK_FLAGS(canon_name), + HV_FETCH_ISEXISTS, NULL, HEK_HASH(canon_name))) { + return TRUE; } } - return boolSV(strEQ(name, "UNIVERSAL")); + return FALSE; } /* @@ -121,259 +85,336 @@ S_isa_lookup(pTHX_ HV *stash, const char *name, HV* name_stash, =for apidoc sv_derived_from -Returns a boolean indicating whether the SV is derived from the specified -class. This is the function that implements C. It works -for class names as well as for objects. +Returns a boolean indicating whether the SV is derived from the specified class +I. To check derivation at the Perl level, call C as a +normal Perl method. =cut */ bool -Perl_sv_derived_from(pTHX_ SV *sv, const char *name) +Perl_sv_derived_from(pTHX_ SV *sv, const char *const name) { - char *type; + dVAR; HV *stash; - HV *name_stash; - stash = Nullhv; - type = Nullch; + PERL_ARGS_ASSERT_SV_DERIVED_FROM; - if (SvGMAGICAL(sv)) - mg_get(sv) ; + SvGETMAGIC(sv); if (SvROK(sv)) { + const char *type; sv = SvRV(sv); type = sv_reftype(sv,0); - if (SvOBJECT(sv)) - stash = SvSTASH(sv); + if (type && strEQ(type,name)) + return TRUE; + stash = SvOBJECT(sv) ? SvSTASH(sv) : NULL; } else { - stash = gv_stashsv(sv, FALSE); + stash = gv_stashsv(sv, 0); } - name_stash = gv_stashpv(name, FALSE); - - return (type && strEQ(type,name)) || - (stash && isa_lookup(stash, name, name_stash, strlen(name), 0) - == &PL_sv_yes) - ? TRUE - : FALSE ; + return stash ? isa_lookup(stash, name) : FALSE; } -#include "XSUB.h" +/* +=for apidoc sv_does -void XS_UNIVERSAL_isa(pTHX_ CV *cv); -void XS_UNIVERSAL_can(pTHX_ CV *cv); -void XS_UNIVERSAL_VERSION(pTHX_ CV *cv); -XS(XS_version_new); -XS(XS_version_stringify); -XS(XS_version_numify); -XS(XS_version_vcmp); -XS(XS_version_boolean); -XS(XS_version_noop); -XS(XS_utf8_valid); -XS(XS_utf8_encode); -XS(XS_utf8_decode); -XS(XS_utf8_upgrade); -XS(XS_utf8_downgrade); -XS(XS_utf8_unicode_to_native); -XS(XS_utf8_native_to_unicode); -XS(XS_Internals_SvREADONLY); -XS(XS_Internals_SvREFCNT); -XS(XS_Internals_hv_clear_placehold); -XS(XS_PerlIO_get_layers); +Returns a boolean indicating whether the SV performs a specific, named role. +The SV can be a Perl object or the name of a Perl class. -void -Perl_boot_core_UNIVERSAL(pTHX) +=cut +*/ + +#include "XSUB.h" + +bool +Perl_sv_does(pTHX_ SV *sv, const char *const name) { - char *file = __FILE__; + const char *classname; + bool does_it; + SV *methodname; + dSP; - newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file); - newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file); - newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file); - { - /* register the overloading (type 'A') magic */ - PL_amagic_generation++; - /* Make it findable via fetchmethod */ - newXS("version::()", XS_version_noop, file); - newXS("version::new", XS_version_new, file); - newXS("version::(\"\"", XS_version_stringify, file); - newXS("version::stringify", XS_version_stringify, file); - newXS("version::(0+", XS_version_numify, file); - newXS("version::numify", XS_version_numify, file); - newXS("version::(cmp", XS_version_vcmp, file); - newXS("version::(<=>", XS_version_vcmp, file); - newXS("version::vcmp", XS_version_vcmp, file); - newXS("version::(bool", XS_version_boolean, file); - newXS("version::boolean", XS_version_boolean, file); - newXS("version::(nomethod", XS_version_noop, file); - newXS("version::noop", XS_version_noop, file); - } - newXS("utf8::valid", XS_utf8_valid, file); - newXS("utf8::encode", XS_utf8_encode, file); - newXS("utf8::decode", XS_utf8_decode, file); - newXS("utf8::upgrade", XS_utf8_upgrade, file); - newXS("utf8::downgrade", XS_utf8_downgrade, file); - newXS("utf8::native_to_unicode", XS_utf8_native_to_unicode, file); - newXS("utf8::unicode_to_native", XS_utf8_unicode_to_native, file); - newXSproto("Internals::SvREADONLY",XS_Internals_SvREADONLY, file, "\\[$%@];$"); - newXSproto("Internals::SvREFCNT",XS_Internals_SvREFCNT, file, "\\[$%@];$"); - newXSproto("Internals::hv_clear_placeholders", - XS_Internals_hv_clear_placehold, file, "\\%"); - newXSproto("PerlIO::get_layers", - XS_PerlIO_get_layers, file, "*;@"); + PERL_ARGS_ASSERT_SV_DOES; + + ENTER; + SAVETMPS; + + SvGETMAGIC(sv); + + if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) + || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) { + LEAVE; + return FALSE; + } + + if (sv_isobject(sv)) { + classname = sv_reftype(SvRV(sv),TRUE); + } else { + classname = SvPV_nolen(sv); + } + + if (strEQ(name,classname)) { + LEAVE; + return TRUE; + } + + PUSHMARK(SP); + XPUSHs(sv); + mXPUSHs(newSVpv(name, 0)); + PUTBACK; + + methodname = newSVpvs_flags("isa", SVs_TEMP); + /* ugly hack: use the SvSCREAM flag so S_method_common + * can figure out we're calling DOES() and not isa(), + * and report eventual errors correctly. --rgs */ + SvSCREAM_on(methodname); + call_sv(methodname, G_SCALAR | G_METHOD); + SPAGAIN; + + does_it = SvTRUE( TOPs ); + FREETMPS; + LEAVE; + + return does_it; } +/* +=for apidoc croak_xs_usage + +A specialised variant of C for emitting the usage message for xsubs + + croak_xs_usage(cv, "eee_yow"); + +works out the package name and subroutine name from C, and then calls +C. Hence if C is C<&ouch::awk>, it would call C as: + + Perl_croak(aTHX_ "Usage: %s::%s(%s)", "ouch" "awk", "eee_yow"); + +=cut +*/ + +void +Perl_croak_xs_usage(pTHX_ const CV *const cv, const char *const params) +{ + const GV *const gv = CvGV(cv); + + PERL_ARGS_ASSERT_CROAK_XS_USAGE; + + if (gv) { + const char *const gvname = GvNAME(gv); + const HV *const stash = GvSTASH(gv); + const char *const hvname = stash ? HvNAME_get(stash) : NULL; + + if (hvname) + Perl_croak(aTHX_ "Usage: %s::%s(%s)", hvname, gvname, params); + else + Perl_croak(aTHX_ "Usage: %s(%s)", gvname, params); + } else { + /* Pants. I don't think that it should be possible to get here. */ + Perl_croak(aTHX_ "Usage: CODE(0x%"UVxf")(%s)", PTR2UV(cv), params); + } +} XS(XS_UNIVERSAL_isa) { + dVAR; dXSARGS; - SV *sv; - char *name; - STRLEN n_a; if (items != 2) - Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)"); - - sv = ST(0); + croak_xs_usage(cv, "reference, kind"); + else { + SV * const sv = ST(0); + const char *name; - if (SvGMAGICAL(sv)) - mg_get(sv); + SvGETMAGIC(sv); - if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) - || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) - XSRETURN_UNDEF; + if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) + || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) + XSRETURN_UNDEF; - name = (char *)SvPV(ST(1),n_a); + name = SvPV_nolen_const(ST(1)); - ST(0) = boolSV(sv_derived_from(sv, name)); - XSRETURN(1); + ST(0) = boolSV(sv_derived_from(sv, name)); + XSRETURN(1); + } } XS(XS_UNIVERSAL_can) { + dVAR; dXSARGS; SV *sv; - char *name; + const char *name; SV *rv; HV *pkg = NULL; - STRLEN n_a; if (items != 2) - Perl_croak(aTHX_ "Usage: UNIVERSAL::can(object-ref, method)"); + croak_xs_usage(cv, "object-ref, method"); sv = ST(0); - if (SvGMAGICAL(sv)) - mg_get(sv); + SvGETMAGIC(sv); if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv)) || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv)))) XSRETURN_UNDEF; - name = (char *)SvPV(ST(1),n_a); + name = SvPV_nolen_const(ST(1)); rv = &PL_sv_undef; if (SvROK(sv)) { - sv = (SV*)SvRV(sv); + sv = MUTABLE_SV(SvRV(sv)); if (SvOBJECT(sv)) pkg = SvSTASH(sv); } else { - pkg = gv_stashsv(sv, FALSE); + pkg = gv_stashsv(sv, 0); } if (pkg) { - GV *gv = gv_fetchmethod_autoload(pkg, name, FALSE); + GV * const gv = gv_fetchmethod_autoload(pkg, name, FALSE); if (gv && isGV(gv)) - rv = sv_2mortal(newRV((SV*)GvCV(gv))); + rv = sv_2mortal(newRV(MUTABLE_SV(GvCV(gv)))); } ST(0) = rv; XSRETURN(1); } +XS(XS_UNIVERSAL_DOES) +{ + dVAR; + dXSARGS; + PERL_UNUSED_ARG(cv); + + if (items != 2) + Perl_croak(aTHX_ "Usage: invocant->DOES(kind)"); + else { + SV * const sv = ST(0); + const char *name; + + name = SvPV_nolen_const(ST(1)); + if (sv_does( sv, name )) + XSRETURN_YES; + + XSRETURN_NO; + } +} + XS(XS_UNIVERSAL_VERSION) { + dVAR; dXSARGS; HV *pkg; GV **gvp; GV *gv; SV *sv; - char *undef; + const char *undef; + PERL_UNUSED_ARG(cv); if (SvROK(ST(0))) { - sv = (SV*)SvRV(ST(0)); + sv = MUTABLE_SV(SvRV(ST(0))); if (!SvOBJECT(sv)) Perl_croak(aTHX_ "Cannot find version of an unblessed reference"); pkg = SvSTASH(sv); } else { - pkg = gv_stashsv(ST(0), FALSE); + pkg = gv_stashsv(ST(0), 0); } - gvp = pkg ? (GV**)hv_fetch(pkg,"VERSION",7,FALSE) : Null(GV**); + gvp = pkg ? (GV**)hv_fetchs(pkg, "VERSION", FALSE) : NULL; - if (gvp && isGV(gv = *gvp) && SvOK(sv = GvSV(gv))) { - SV *nsv = sv_newmortal(); + if (gvp && isGV(gv = *gvp) && (sv = GvSV(gv)) && SvOK(sv)) { + SV * const nsv = sv_newmortal(); sv_setsv(nsv, sv); sv = nsv; - undef = Nullch; + if ( !sv_derived_from(sv, "version")) + upg_version(sv, FALSE); + undef = NULL; } else { - sv = (SV*)&PL_sv_undef; + sv = &PL_sv_undef; undef = "(undef)"; } if (items > 1) { - STRLEN len; SV *req = ST(1); if (undef) { - if (pkg) - Perl_croak(aTHX_ - "%s does not define $%s::VERSION--version check failed", - HvNAME(pkg), HvNAME(pkg)); - else { - char *str = SvPVx(ST(0), len); - - Perl_croak(aTHX_ - "%s defines neither package nor VERSION--version check failed", str); + if (pkg) { + const char * const name = HvNAME_get(pkg); + Perl_croak(aTHX_ + "%s does not define $%s::VERSION--version check failed", + name, name); + } else { + Perl_croak(aTHX_ + "%s defines neither package nor VERSION--version check failed", + SvPVx_nolen_const(ST(0)) ); } } - if ( !sv_derived_from(sv, "version")) - sv = new_version(sv); - if ( !sv_derived_from(req, "version")) - req = new_version(req); + if ( !sv_derived_from(req, "version")) { + /* req may very well be R/O, so create a new object */ + req = sv_2mortal( new_version(req) ); + } + + if ( vcmp( req, sv ) > 0 ) { + if ( hv_exists(MUTABLE_HV(SvRV(req)), "qv", 2 ) ) { + Perl_croak(aTHX_ "%s version %"SVf" required--" + "this is only version %"SVf"", HvNAME_get(pkg), + SVfARG(sv_2mortal(vnormal(req))), + SVfARG(sv_2mortal(vnormal(sv)))); + } else { + Perl_croak(aTHX_ "%s version %"SVf" required--" + "this is only version %"SVf"", HvNAME_get(pkg), + SVfARG(sv_2mortal(vstringify(req))), + SVfARG(sv_2mortal(vstringify(sv)))); + } + } - if ( vcmp( SvRV(req), SvRV(sv) ) > 0 ) - Perl_croak(aTHX_ - "%s version %"SVf" required--this is only version %"SVf, - HvNAME(pkg), req, sv); } - ST(0) = sv; + if ( SvOK(sv) && sv_derived_from(sv, "version") ) { + ST(0) = sv_2mortal(vstringify(sv)); + } else { + ST(0) = sv; + } XSRETURN(1); } XS(XS_version_new) { + dVAR; dXSARGS; if (items > 3) - Perl_croak(aTHX_ "Usage: version::new(class, version)"); + croak_xs_usage(cv, "class, version"); SP -= items; { -/* char * class = (char *)SvPV_nolen(ST(0)); */ - SV *version = ST(1); - if (items == 3 ) - { - char *vs = savepvn(SvPVX(ST(2)),SvCUR(ST(2))); - version = Perl_newSVpvf(aTHX_ "v%s",vs); + SV *vs = ST(1); + SV *rv; + const char * const classname = + sv_isobject(ST(0)) /* get the class if called as an object method */ + ? HvNAME(SvSTASH(SvRV(ST(0)))) + : (char *)SvPV_nolen(ST(0)); + + if ( items == 1 || ! SvOK(vs) ) { /* no param or explicit undef */ + /* create empty object */ + vs = sv_newmortal(); + sv_setpvs(vs, "0"); + } + else if ( items == 3 ) { + vs = sv_newmortal(); + Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2))); } - PUSHs(new_version(version)); + rv = new_version(vs); + if ( strcmp(classname,"version") != 0 ) /* inherited new() */ + sv_bless(rv, gv_stashpv(classname, GV_ADD)); + + mPUSHs(rv); PUTBACK; return; } @@ -381,204 +422,295 @@ XS(XS_version_new) XS(XS_version_stringify) { - dXSARGS; - if (items < 1) - Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)"); - SP -= items; - { - SV * lobj; + dVAR; + dXSARGS; + if (items < 1) + croak_xs_usage(cv, "lobj, ..."); + SP -= items; + { + SV * lobj = ST(0); + + if (sv_derived_from(lobj, "version") && SvROK(lobj)) { + lobj = SvRV(lobj); + } + else + Perl_croak(aTHX_ "lobj is not of type version"); + + mPUSHs(vstringify(lobj)); + + PUTBACK; + return; + } +} - if (sv_derived_from(ST(0), "version")) { - SV *tmp = SvRV(ST(0)); - lobj = tmp; - } - else - Perl_croak(aTHX_ "lobj is not of type version"); +XS(XS_version_numify) +{ + dVAR; + dXSARGS; + if (items < 1) + croak_xs_usage(cv, "lobj, ..."); + SP -= items; + { + SV * lobj = ST(0); + + if (sv_derived_from(lobj, "version") && SvROK(lobj)) { + lobj = SvRV(lobj); + } + else + Perl_croak(aTHX_ "lobj is not of type version"); + + mPUSHs(vnumify(lobj)); + + PUTBACK; + return; + } +} +XS(XS_version_normal) { - PUSHs(vstringify(lobj)); + dVAR; + dXSARGS; + if (items < 1) + croak_xs_usage(cv, "lobj, ..."); + SP -= items; + { + SV * lobj = ST(0); + + if (sv_derived_from(lobj, "version") && SvROK(lobj)) { + lobj = SvRV(lobj); + } + else + Perl_croak(aTHX_ "lobj is not of type version"); + + mPUSHs(vnormal(lobj)); + + PUTBACK; + return; + } } - PUTBACK; - return; - } +XS(XS_version_vcmp) +{ + dVAR; + dXSARGS; + if (items < 1) + croak_xs_usage(cv, "lobj, ..."); + SP -= items; + { + SV * lobj = ST(0); + + if (sv_derived_from(lobj, "version") && SvROK(lobj)) { + lobj = SvRV(lobj); + } + else + Perl_croak(aTHX_ "lobj is not of type version"); + + { + SV *rs; + SV *rvs; + SV * robj = ST(1); + const IV swap = (IV)SvIV(ST(2)); + + if ( ! sv_derived_from(robj, "version") ) + { + robj = new_version(SvOK(robj) ? robj : newSVpvs_flags("0", SVs_TEMP)); + sv_2mortal(robj); + } + rvs = SvRV(robj); + + if ( swap ) + { + rs = newSViv(vcmp(rvs,lobj)); + } + else + { + rs = newSViv(vcmp(lobj,rvs)); + } + + mPUSHs(rs); + } + + PUTBACK; + return; + } } -XS(XS_version_numify) +XS(XS_version_boolean) { + dVAR; dXSARGS; if (items < 1) - Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)"); + croak_xs_usage(cv, "lobj, ..."); SP -= items; - { - SV * lobj; - - if (sv_derived_from(ST(0), "version")) { - SV *tmp = SvRV(ST(0)); - lobj = tmp; - } - else - Perl_croak(aTHX_ "lobj is not of type version"); - -{ - PUSHs(vnumify(lobj)); -} - + if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { + SV * const lobj = SvRV(ST(0)); + SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) ); + mPUSHs(rs); PUTBACK; return; } + else + Perl_croak(aTHX_ "lobj is not of type version"); } -XS(XS_version_vcmp) +XS(XS_version_noop) { + dVAR; dXSARGS; if (items < 1) - Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)"); - SP -= items; - { - SV * lobj; - - if (sv_derived_from(ST(0), "version")) { - SV *tmp = SvRV(ST(0)); - lobj = tmp; - } - else - Perl_croak(aTHX_ "lobj is not of type version"); - -{ - SV *rs; - SV *rvs; - SV * robj = ST(1); - IV swap = (IV)SvIV(ST(2)); - - if ( ! sv_derived_from(robj, "version") ) - { - robj = new_version(robj); - } - rvs = SvRV(robj); - - if ( swap ) - { - rs = newSViv(vcmp(rvs,lobj)); - } + croak_xs_usage(cv, "lobj, ..."); + if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) + Perl_croak(aTHX_ "operation not supported with version object"); else - { - rs = newSViv(vcmp(lobj,rvs)); - } - - PUSHs(rs); + Perl_croak(aTHX_ "lobj is not of type version"); +#ifndef HASATTRIBUTE_NORETURN + XSRETURN_EMPTY; +#endif } +XS(XS_version_is_alpha) +{ + dVAR; + dXSARGS; + if (items != 1) + croak_xs_usage(cv, "lobj"); + SP -= items; + if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { + SV * const lobj = ST(0); + if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "alpha", 5 ) ) + XSRETURN_YES; + else + XSRETURN_NO; PUTBACK; return; } + else + Perl_croak(aTHX_ "lobj is not of type version"); } -XS(XS_version_boolean) +XS(XS_version_qv) { + dVAR; dXSARGS; - if (items < 1) - Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)"); + PERL_UNUSED_ARG(cv); SP -= items; { - SV * lobj; - - if (sv_derived_from(ST(0), "version")) { - SV *tmp = SvRV(ST(0)); - lobj = tmp; - } - else - Perl_croak(aTHX_ "lobj is not of type version"); - -{ - SV *rs; - rs = newSViv( vcmp(lobj,new_version(newSVpvn("0",1))) ); - PUSHs(rs); + SV * ver = ST(0); + SV * rv; + const char * classname = ""; + if ( items == 2 && SvOK(ST(1)) ) { + /* getting called as object or class method */ + ver = ST(1); + classname = + sv_isobject(ST(0)) /* class called as an object method */ + ? HvNAME_get(SvSTASH(SvRV(ST(0)))) + : (char *)SvPV_nolen(ST(0)); + } + if ( !SvVOK(ver) ) { /* not already a v-string */ + rv = sv_newmortal(); + sv_setsv(rv,ver); /* make a duplicate */ + upg_version(rv, TRUE); + } else { + rv = sv_2mortal(new_version(ver)); + } + if ( items == 2 && strcmp(classname,"version") ) { /* inherited new() */ + sv_bless(rv, gv_stashpv(classname, GV_ADD)); + } + PUSHs(rv); + } + PUTBACK; + return; } +XS(XS_version_is_qv) +{ + dVAR; + dXSARGS; + if (items != 1) + croak_xs_usage(cv, "lobj"); + SP -= items; + if (sv_derived_from(ST(0), "version") && SvROK(ST(0))) { + SV * const lobj = ST(0); + if ( hv_exists(MUTABLE_HV(SvRV(lobj)), "qv", 2 ) ) + XSRETURN_YES; + else + XSRETURN_NO; PUTBACK; return; } + else + Perl_croak(aTHX_ "lobj is not of type version"); } -XS(XS_version_noop) +XS(XS_utf8_is_utf8) { - dXSARGS; - if (items < 1) - Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)"); - { - SV * lobj; - - if (sv_derived_from(ST(0), "version")) { - SV *tmp = SvRV(ST(0)); - lobj = tmp; - } - else - Perl_croak(aTHX_ "lobj is not of type version"); - -{ - Perl_croak(aTHX_ "operation not supported with version object"); -} - - } - XSRETURN_EMPTY; + dVAR; + dXSARGS; + if (items != 1) + croak_xs_usage(cv, "sv"); + else { + SV * const sv = ST(0); + SvGETMAGIC(sv); + if (SvUTF8(sv)) + XSRETURN_YES; + else + XSRETURN_NO; + } + XSRETURN_EMPTY; } XS(XS_utf8_valid) { - dXSARGS; - if (items != 1) - Perl_croak(aTHX_ "Usage: utf8::valid(sv)"); - { - SV * sv = ST(0); - { - STRLEN len; - char *s = SvPV(sv,len); - if (!SvUTF8(sv) || is_utf8_string((U8*)s,len)) - XSRETURN_YES; - else - XSRETURN_NO; - } + dVAR; + dXSARGS; + if (items != 1) + croak_xs_usage(cv, "sv"); + else { + SV * const sv = ST(0); + STRLEN len; + const char * const s = SvPV_const(sv,len); + if (!SvUTF8(sv) || is_utf8_string((const U8*)s,len)) + XSRETURN_YES; + else + XSRETURN_NO; } - XSRETURN_EMPTY; + XSRETURN_EMPTY; } XS(XS_utf8_encode) { + dVAR; dXSARGS; if (items != 1) - Perl_croak(aTHX_ "Usage: utf8::encode(sv)"); - { - SV * sv = ST(0); - - sv_utf8_encode(sv); - } + croak_xs_usage(cv, "sv"); + sv_utf8_encode(ST(0)); XSRETURN_EMPTY; } XS(XS_utf8_decode) { + dVAR; dXSARGS; if (items != 1) - Perl_croak(aTHX_ "Usage: utf8::decode(sv)"); - { - SV * sv = ST(0); - bool RETVAL; - + croak_xs_usage(cv, "sv"); + else { + SV * const sv = ST(0); + bool RETVAL; + if (SvIsCOW(sv)) sv_force_normal(sv); RETVAL = sv_utf8_decode(sv); ST(0) = boolSV(RETVAL); - sv_2mortal(ST(0)); } XSRETURN(1); } XS(XS_utf8_upgrade) { + dVAR; dXSARGS; if (items != 1) - Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)"); - { - SV * sv = ST(0); + croak_xs_usage(cv, "sv"); + else { + SV * const sv = ST(0); STRLEN RETVAL; dXSTARG; @@ -590,34 +722,28 @@ XS(XS_utf8_upgrade) XS(XS_utf8_downgrade) { + dVAR; dXSARGS; if (items < 1 || items > 2) - Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)"); - { - SV * sv = ST(0); - bool failok; - bool RETVAL; - - if (items < 2) - failok = 0; - else { - failok = (int)SvIV(ST(1)); - } + croak_xs_usage(cv, "sv, failok=0"); + else { + SV * const sv = ST(0); + const bool failok = (items < 2) ? 0 : (int)SvIV(ST(1)); + const bool RETVAL = sv_utf8_downgrade(sv, failok); - RETVAL = sv_utf8_downgrade(sv, failok); ST(0) = boolSV(RETVAL); - sv_2mortal(ST(0)); } XSRETURN(1); } XS(XS_utf8_native_to_unicode) { + dVAR; dXSARGS; - UV uv = SvUV(ST(0)); + const UV uv = SvUV(ST(0)); if (items > 1) - Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)"); + croak_xs_usage(cv, "sv"); ST(0) = sv_2mortal(newSViv(NATIVE_TO_UNI(uv))); XSRETURN(1); @@ -625,11 +751,12 @@ XS(XS_utf8_native_to_unicode) XS(XS_utf8_unicode_to_native) { + dVAR; dXSARGS; - UV uv = SvUV(ST(0)); + const UV uv = SvUV(ST(0)); if (items > 1) - Perl_croak(aTHX_ "Usage: utf8::unicode_to_native(sv)"); + croak_xs_usage(cv, "sv"); ST(0) = sv_2mortal(newSViv(UNI_TO_NATIVE(uv))); XSRETURN(1); @@ -637,8 +764,18 @@ XS(XS_utf8_unicode_to_native) XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ { + dVAR; dXSARGS; - SV *sv = SvRV(ST(0)); + SV * const svz = ST(0); + SV * sv; + PERL_UNUSED_ARG(cv); + + /* [perl #77776] - called as &foo() not foo() */ + if (!SvROK(svz)) + croak_xs_usage(cv, "SCALAR[, ON]"); + + sv = SvRV(svz); + if (items == 1) { if (SvREADONLY(sv)) XSRETURN_YES; @@ -661,8 +798,18 @@ XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */ XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ { + dVAR; dXSARGS; - SV *sv = SvRV(ST(0)); + SV * const svz = ST(0); + SV * sv; + PERL_UNUSED_ARG(cv); + + /* [perl #77776] - called as &foo() not foo() */ + if (!SvROK(svz)) + croak_xs_usage(cv, "SCALAR[, REFCOUNT]"); + + sv = SvRV(svz); + if (items == 1) XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */ else if (items == 2) { @@ -673,61 +820,26 @@ XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */ XSRETURN_UNDEF; /* Can't happen. */ } -/* Maybe this should return the number of placeholders found in scalar context, - and a list of them in list context. */ XS(XS_Internals_hv_clear_placehold) { + dVAR; dXSARGS; - HV *hv = (HV *) SvRV(ST(0)); - - /* I don't care how many parameters were passed in, but I want to avoid - the unused variable warning. */ - - items = (I32)HvPLACEHOLDERS(hv); - - if (items) { - HE *entry; - I32 riter = HvRITER(hv); - HE *eiter = HvEITER(hv); - hv_iterinit(hv); - /* This may look suboptimal with the items *after* the iternext, but - it's quite deliberate. We only get here with items==0 if we've - just deleted the last placeholder in the hash. If we've just done - that then it means that the hash is in lazy delete mode, and the - HE is now only referenced in our iterator. If we just quit the loop - and discarded our iterator then the HE leaks. So we do the && the - other way to ensure iternext is called just one more time, which - has the side effect of triggering the lazy delete. */ - while ((entry = hv_iternext_flags(hv, HV_ITERNEXT_WANTPLACEHOLDERS)) - && items) { - SV *val = hv_iterval(hv, entry); - - if (val == &PL_sv_undef) { - - /* It seems that I have to go back in the front of the hash - API to delete a hash, even though I have a HE structure - pointing to the very entry I want to delete, and could hold - onto the previous HE that points to it. And it's easier to - go in with SVs as I can then specify the precomputed hash, - and don't have fun and games with utf8 keys. */ - SV *key = hv_iterkeysv(entry); - - hv_delete_ent (hv, key, G_DISCARD, HeHASH(entry)); - items--; - } - } - HvRITER(hv) = riter; - HvEITER(hv) = eiter; - } - XSRETURN(0); + if (items != 1 || !SvROK(ST(0))) + croak_xs_usage(cv, "hv"); + else { + HV * const hv = MUTABLE_HV(SvRV(ST(0))); + hv_clear_placeholders(hv); + XSRETURN(0); + } } XS(XS_PerlIO_get_layers) { + dVAR; dXSARGS; if (items < 1 || items % 2 == 0) - Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])"); + croak_xs_usage(cv, "filehandle[,args]"); #ifdef USE_PERLIO { SV * sv; @@ -737,13 +849,12 @@ XS(XS_PerlIO_get_layers) bool details = FALSE; if (items > 1) { - SV **svp; - + SV * const *svp; for (svp = MARK + 2; svp <= SP; svp += 2) { - SV **varp = svp; - SV **valp = svp + 1; + SV * const * const varp = svp; + SV * const * const valp = svp + 1; STRLEN klen; - char *key = SvPV(*varp, klen); + const char * const key = SvPV_const(*varp, klen); switch (*key) { case 'i': @@ -776,62 +887,65 @@ XS(XS_PerlIO_get_layers) } sv = POPs; - gv = (GV*)sv; + gv = MUTABLE_GV(sv); if (!isGV(sv)) { if (SvROK(sv) && isGV(SvRV(sv))) - gv = (GV*)SvRV(sv); - else - gv = gv_fetchpv(SvPVX(sv), FALSE, SVt_PVIO); + gv = MUTABLE_GV(SvRV(sv)); + else if (SvPOKp(sv)) + gv = gv_fetchsv(sv, 0, SVt_PVIO); } if (gv && (io = GvIO(gv))) { - dTARGET; - AV* av = PerlIO_get_layers(aTHX_ input ? + AV* const av = PerlIO_get_layers(aTHX_ input ? IoIFP(io) : IoOFP(io)); I32 i; - I32 last = av_len(av); + const I32 last = av_len(av); I32 nitem = 0; for (i = last; i >= 0; i -= 3) { - SV **namsvp; - SV **argsvp; - SV **flgsvp; - bool namok, argok, flgok; - - namsvp = av_fetch(av, i - 2, FALSE); - argsvp = av_fetch(av, i - 1, FALSE); - flgsvp = av_fetch(av, i, FALSE); + SV * const * const namsvp = av_fetch(av, i - 2, FALSE); + SV * const * const argsvp = av_fetch(av, i - 1, FALSE); + SV * const * const flgsvp = av_fetch(av, i, FALSE); - namok = namsvp && *namsvp && SvPOK(*namsvp); - argok = argsvp && *argsvp && SvPOK(*argsvp); - flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); + const bool namok = namsvp && *namsvp && SvPOK(*namsvp); + const bool argok = argsvp && *argsvp && SvPOK(*argsvp); + const bool flgok = flgsvp && *flgsvp && SvIOK(*flgsvp); if (details) { - XPUSHs(namok ? - newSVpv(SvPVX(*namsvp), 0) : &PL_sv_undef); - XPUSHs(argok ? - newSVpv(SvPVX(*argsvp), 0) : &PL_sv_undef); - if (flgok) - XPUSHi(SvIVX(*flgsvp)); - else - XPUSHs(&PL_sv_undef); + /* Indents of 5? Yuck. */ + /* We know that PerlIO_get_layers creates a new SV for + the name and flags, so we can just take a reference + and "steal" it when we free the AV below. */ + XPUSHs(namok + ? sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp)) + : &PL_sv_undef); + XPUSHs(argok + ? newSVpvn_flags(SvPVX_const(*argsvp), + SvCUR(*argsvp), + (SvUTF8(*argsvp) ? SVf_UTF8 : 0) + | SVs_TEMP) + : &PL_sv_undef); + XPUSHs(flgok + ? sv_2mortal(SvREFCNT_inc_simple_NN(*flgsvp)) + : &PL_sv_undef); nitem += 3; } else { if (namok && argok) - XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", - *namsvp, *argsvp)); + XPUSHs(sv_2mortal(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")", + SVfARG(*namsvp), + SVfARG(*argsvp)))); else if (namok) - XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, *namsvp)); + XPUSHs(sv_2mortal(SvREFCNT_inc_simple_NN(*namsvp))); else XPUSHs(&PL_sv_undef); nitem++; if (flgok) { - IV flags = SvIVX(*flgsvp); + const IV flags = SvIVX(*flgsvp); if (flags & PERLIO_F_UTF8) { - XPUSHs(newSVpvn("utf8", 4)); + XPUSHs(newSVpvs_flags("utf8", SVs_TEMP)); nitem++; } } @@ -848,3 +962,349 @@ XS(XS_PerlIO_get_layers) XSRETURN(0); } +XS(XS_Internals_hash_seed) +{ + dVAR; + /* Using dXSARGS would also have dITEM and dSP, + * which define 2 unused local variables. */ + dAXMARK; + PERL_UNUSED_ARG(cv); + PERL_UNUSED_VAR(mark); + XSRETURN_UV(PERL_HASH_SEED); +} + +XS(XS_Internals_rehash_seed) +{ + dVAR; + /* Using dXSARGS would also have dITEM and dSP, + * which define 2 unused local variables. */ + dAXMARK; + PERL_UNUSED_ARG(cv); + PERL_UNUSED_VAR(mark); + XSRETURN_UV(PL_rehash_seed); +} + +XS(XS_Internals_HvREHASH) /* Subject to change */ +{ + dVAR; + dXSARGS; + PERL_UNUSED_ARG(cv); + if (SvROK(ST(0))) { + const HV * const hv = (const HV *) SvRV(ST(0)); + if (items == 1 && SvTYPE(hv) == SVt_PVHV) { + if (HvREHASH(hv)) + XSRETURN_YES; + else + XSRETURN_NO; + } + } + Perl_croak(aTHX_ "Internals::HvREHASH $hashref"); +} + +XS(XS_re_is_regexp) +{ + dVAR; + dXSARGS; + PERL_UNUSED_VAR(cv); + + if (items != 1) + croak_xs_usage(cv, "sv"); + + if (SvRXOK(ST(0))) { + XSRETURN_YES; + } else { + XSRETURN_NO; + } +} + +XS(XS_re_regnames_count) +{ + REGEXP *rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; + SV * ret; + dVAR; + dXSARGS; + + if (items != 0) + croak_xs_usage(cv, ""); + + SP -= items; + PUTBACK; + + if (!rx) + XSRETURN_UNDEF; + + ret = CALLREG_NAMED_BUFF_COUNT(rx); + + SPAGAIN; + PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); + XSRETURN(1); +} + +XS(XS_re_regname) +{ + dVAR; + dXSARGS; + REGEXP * rx; + U32 flags; + SV * ret; + + if (items < 1 || items > 2) + croak_xs_usage(cv, "name[, all ]"); + + SP -= items; + PUTBACK; + + rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; + + if (!rx) + XSRETURN_UNDEF; + + if (items == 2 && SvTRUE(ST(1))) { + flags = RXapif_ALL; + } else { + flags = RXapif_ONE; + } + ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXapif_REGNAME)); + + SPAGAIN; + PUSHs(ret ? sv_2mortal(ret) : &PL_sv_undef); + XSRETURN(1); +} + + +XS(XS_re_regnames) +{ + dVAR; + dXSARGS; + REGEXP * rx; + U32 flags; + SV *ret; + AV *av; + I32 length; + I32 i; + SV **entry; + + if (items > 1) + croak_xs_usage(cv, "[all]"); + + rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL; + + if (!rx) + XSRETURN_UNDEF; + + if (items == 1 && SvTRUE(ST(0))) { + flags = RXapif_ALL; + } else { + flags = RXapif_ONE; + } + + SP -= items; + PUTBACK; + + ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXapif_REGNAMES)); + + SPAGAIN; + + if (!ret) + XSRETURN_UNDEF; + + av = MUTABLE_AV(SvRV(ret)); + length = av_len(av); + + for (i = 0; i <= length; i++) { + entry = av_fetch(av, i, FALSE); + + if (!entry) + Perl_croak(aTHX_ "NULL array element in re::regnames()"); + + mXPUSHs(SvREFCNT_inc_simple_NN(*entry)); + } + + SvREFCNT_dec(ret); + + PUTBACK; + return; +} + +XS(XS_re_regexp_pattern) +{ + dVAR; + dXSARGS; + REGEXP *re; + + if (items != 1) + croak_xs_usage(cv, "sv"); + + SP -= items; + + /* + Checks if a reference is a regex or not. If the parameter is + not a ref, or is not the result of a qr// then returns false + in scalar context and an empty list in list context. + Otherwise in list context it returns the pattern and the + modifiers, in scalar context it returns the pattern just as it + would if the qr// was stringified normally, regardless as + to the class of the variable and any stringification overloads + on the object. + */ + + if ((re = SvRX(ST(0)))) /* assign deliberate */ + { + /* Houston, we have a regex! */ + SV *pattern; + + if ( GIMME_V == G_ARRAY ) { + STRLEN left = 0; + char reflags[sizeof(INT_PAT_MODS) + MAX_CHARSET_NAME_LENGTH]; + const char *fptr; + char ch; + U16 match_flags; + + /* + we are in list context so stringify + the modifiers that apply. We ignore "negative + modifiers" in this scenario, and the default character set + */ + + if (get_regex_charset(RX_EXTFLAGS(re)) != REGEX_DEPENDS_CHARSET) { + STRLEN len; + const char* const name = get_regex_charset_name(RX_EXTFLAGS(re), + &len); + Copy(name, reflags + left, len, char); + left += len; + } + fptr = INT_PAT_MODS; + match_flags = (U16)((RX_EXTFLAGS(re) & RXf_PMf_COMPILETIME) + >> RXf_PMf_STD_PMMOD_SHIFT); + + while((ch = *fptr++)) { + if(match_flags & 1) { + reflags[left++] = ch; + } + match_flags >>= 1; + } + + pattern = newSVpvn_flags(RX_PRECOMP(re),RX_PRELEN(re), + (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); + + /* return the pattern and the modifiers */ + XPUSHs(pattern); + XPUSHs(newSVpvn_flags(reflags, left, SVs_TEMP)); + XSRETURN(2); + } else { + /* Scalar, so use the string that Perl would return */ + /* return the pattern in (?msix:..) format */ +#if PERL_VERSION >= 11 + pattern = sv_2mortal(newSVsv(MUTABLE_SV(re))); +#else + pattern = newSVpvn_flags(RX_WRAPPED(re), RX_WRAPLEN(re), + (RX_UTF8(re) ? SVf_UTF8 : 0) | SVs_TEMP); +#endif + XPUSHs(pattern); + XSRETURN(1); + } + } else { + /* It ain't a regexp folks */ + if ( GIMME_V == G_ARRAY ) { + /* return the empty list */ + XSRETURN_UNDEF; + } else { + /* Because of the (?:..) wrapping involved in a + stringified pattern it is impossible to get a + result for a real regexp that would evaluate to + false. Therefore we can return PL_sv_no to signify + that the object is not a regex, this means that one + can say + + if (regex($might_be_a_regex) eq '(?:foo)') { } + + and not worry about undefined values. + */ + XSRETURN_NO; + } + } + /* NOT-REACHED */ +} + +struct xsub_details { + const char *name; + XSUBADDR_t xsub; + const char *proto; +}; + +struct xsub_details details[] = { + {"UNIVERSAL::isa", XS_UNIVERSAL_isa, NULL}, + {"UNIVERSAL::can", XS_UNIVERSAL_can, NULL}, + {"UNIVERSAL::DOES", XS_UNIVERSAL_DOES, NULL}, + {"UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, NULL}, + {"version::()", XS_version_noop, NULL}, + {"version::new", XS_version_new, NULL}, + {"version::parse", XS_version_new, NULL}, + {"version::(\"\"", XS_version_stringify, NULL}, + {"version::stringify", XS_version_stringify, NULL}, + {"version::(0+", XS_version_numify, NULL}, + {"version::numify", XS_version_numify, NULL}, + {"version::normal", XS_version_normal, NULL}, + {"version::(cmp", XS_version_vcmp, NULL}, + {"version::(<=>", XS_version_vcmp, NULL}, + {"version::vcmp", XS_version_vcmp, NULL}, + {"version::(bool", XS_version_boolean, NULL}, + {"version::boolean", XS_version_boolean, NULL}, + {"version::(nomethod", XS_version_noop, NULL}, + {"version::noop", XS_version_noop, NULL}, + {"version::is_alpha", XS_version_is_alpha, NULL}, + {"version::qv", XS_version_qv, NULL}, + {"version::declare", XS_version_qv, NULL}, + {"version::is_qv", XS_version_is_qv, NULL}, + {"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, "\\%"}, + {"PerlIO::get_layers", XS_PerlIO_get_layers, "*;@"}, + {"Internals::hash_seed", XS_Internals_hash_seed, ""}, + {"Internals::rehash_seed", XS_Internals_rehash_seed, ""}, + {"Internals::HvREHASH", XS_Internals_HvREHASH, "\\%"}, + {"re::is_regexp", XS_re_is_regexp, "$"}, + {"re::regname", XS_re_regname, ";$$"}, + {"re::regnames", XS_re_regnames, ";$"}, + {"re::regnames_count", XS_re_regnames_count, ""}, + {"re::regexp_pattern", XS_re_regexp_pattern, "$"}, +}; + +void +Perl_boot_core_UNIVERSAL(pTHX) +{ + dVAR; + static const char file[] = __FILE__; + struct xsub_details *xsub = details; + const struct xsub_details *end + = details + sizeof(details) / sizeof(details[0]); + + do { + newXS_flags(xsub->name, xsub->xsub, file, xsub->proto, 0); + } while (++xsub < end); + + /* register the overloading (type 'A') magic */ + PL_amagic_generation++; + + /* Providing a Regexp::DESTROY fixes #21347. See test in t/op/ref.t */ + CvFILE(newCONSTSUB(get_hv("Regexp::", GV_ADD), "DESTROY", NULL)) + = (char *)file; +} + +/* + * Local variables: + * c-indentation-style: bsd + * c-basic-offset: 4 + * indent-tabs-mode: t + * End: + * + * ex: set ts=8 sts=4 sw=4 noet: + */