X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=xsutils.c;h=186405092f6598b2d5cece78fc7405f0abc90c5c;hb=767e26d7c823c3c5c43ef254adba671cd0fb1a66;hp=1d7a01a717aa08945f15bff47bad0720fd8ddd4b;hpb=eb1102fcca2230364ceadea29bd8e87ee51b15fa;p=p5sagit%2Fp5-mst-13.2.git diff --git a/xsutils.c b/xsutils.c index 1d7a01a..1864050 100644 --- a/xsutils.c +++ b/xsutils.c @@ -1,12 +1,19 @@ /* xsutils.c * - * Copyright (c) 1999-2002, Larry Wall + * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, + * 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. * */ +/* + * "Perilous to us all are the devices of an art deeper than we possess + * ourselves." --Gandalf + */ + + #include "EXTERN.h" #define PERL_IN_XSUTILS_C #include "perl.h" @@ -16,12 +23,11 @@ */ /* package attributes; */ -void XS_attributes__warn_reserved(pTHX_ CV *cv); -void XS_attributes_reftype(pTHX_ CV *cv); -void XS_attributes__modify_attrs(pTHX_ CV *cv); -void XS_attributes__guess_stash(pTHX_ CV *cv); -void XS_attributes__fetch_attrs(pTHX_ CV *cv); -void XS_attributes_bootstrap(pTHX_ CV *cv); +PERL_XS_EXPORT_C void XS_attributes_reftype(pTHX_ CV *cv); +PERL_XS_EXPORT_C void XS_attributes__modify_attrs(pTHX_ CV *cv); +PERL_XS_EXPORT_C void XS_attributes__guess_stash(pTHX_ CV *cv); +PERL_XS_EXPORT_C void XS_attributes__fetch_attrs(pTHX_ CV *cv); +PERL_XS_EXPORT_C void XS_attributes_bootstrap(pTHX_ CV *cv); /* @@ -36,11 +42,11 @@ void XS_attributes_bootstrap(pTHX_ CV *cv); * version checks in these bootstrap calls are optional. */ +static const char file[] = __FILE__; + void Perl_boot_core_xsutils(pTHX) { - char *file = __FILE__; - newXS("attributes::bootstrap", XS_attributes_bootstrap, file); } @@ -49,15 +55,16 @@ Perl_boot_core_xsutils(pTHX) static int modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs) { + dVAR; SV *attr; - char *name; - STRLEN len; - bool negated; int nret; for (nret = 0 ; numattrs && (attr = *attrlist++); numattrs--) { - name = SvPV(attr, len); - if ((negated = (*name == '-'))) { + STRLEN len; + const char *name = SvPV_const(attr, len); + const bool negated = (*name == '-'); + + if (negated) { name++; len--; } @@ -65,18 +72,20 @@ modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs) case SVt_PVCV: switch ((int)len) { case 6: - switch (*name) { - case 'l': + switch (name[3]) { #ifdef CVf_LVALUE - if (strEQ(name, "lvalue")) { + case 'l': + if (memEQ(name, "lvalue", 6)) { if (negated) CvFLAGS((CV*)sv) &= ~CVf_LVALUE; else CvFLAGS((CV*)sv) |= CVf_LVALUE; continue; } -#endif /* defined CVf_LVALUE */ - if (strEQ(name, "locked")) { + break; +#endif + case 'k': + if (memEQ(name, "locked", 6)) { if (negated) CvFLAGS((CV*)sv) &= ~CVf_LOCKED; else @@ -84,8 +93,8 @@ modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs) continue; } break; - case 'm': - if (strEQ(name, "method")) { + case 'h': + if (memEQ(name, "method", 6)) { if (negated) CvFLAGS((CV*)sv) &= ~CVf_METHOD; else @@ -93,15 +102,6 @@ modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs) continue; } break; - case 'u': - if (strEQ(name, "unique")) { - if (negated) - GvUNIQUE_off(CvGV((CV*)sv)); - else - GvUNIQUE_on(CvGV((CV*)sv)); - continue; - } - break; } break; } @@ -109,14 +109,23 @@ modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs) default: switch ((int)len) { case 6: - switch (*name) { - case 'u': - if (strEQ(name, "unique")) { - if (SvTYPE(sv) == SVt_PVGV) { - if (negated) + switch (name[5]) { + case 'd': + if (memEQ(name, "share", 5)) { + if (negated) + Perl_croak(aTHX_ "A variable may not be unshared"); + SvSHARE(sv); + continue; + } + break; + case 'e': + if (memEQ(name, "uniqu", 5)) { + if (isGV_with_GP(sv)) { + if (negated) { GvUNIQUE_off(sv); - else + } else { GvUNIQUE_on(sv); + } } /* Hope this came from toke.c if not a GV. */ continue; @@ -139,13 +148,12 @@ modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs) XS(XS_attributes_bootstrap) { + dVAR; dXSARGS; - char *file = __FILE__; if( items > 1 ) - Perl_croak(aTHX_ "Usage: attributes::bootstrap $module"); + croak_xs_usage(cv, "$module"); - newXSproto("attributes::_warn_reserved", XS_attributes__warn_reserved, file, ""); newXS("attributes::_modify_attrs", XS_attributes__modify_attrs, file); newXSproto("attributes::_guess_stash", XS_attributes__guess_stash, file, "$"); newXSproto("attributes::_fetch_attrs", XS_attributes__fetch_attrs, file, "$"); @@ -156,13 +164,13 @@ XS(XS_attributes_bootstrap) XS(XS_attributes__modify_attrs) { + dVAR; dXSARGS; SV *rv, *sv; if (items < 1) { usage: - Perl_croak(aTHX_ - "Usage: attributes::_modify_attrs $reference, @attributes"); + croak_xs_usage(cv, "@attributes"); } rv = ST(0); @@ -177,14 +185,14 @@ usage: XS(XS_attributes__fetch_attrs) { + dVAR; dXSARGS; SV *rv, *sv; cv_flags_t cvflags; if (items != 1) { usage: - Perl_croak(aTHX_ - "Usage: attributes::_fetch_attrs $reference"); + croak_xs_usage(cv, "$reference"); } rv = ST(0); @@ -197,19 +205,19 @@ usage: case SVt_PVCV: cvflags = CvFLAGS((CV*)sv); if (cvflags & CVf_LOCKED) - XPUSHs(sv_2mortal(newSVpvn("locked", 6))); + XPUSHs(newSVpvs_flags("locked", SVs_TEMP)); #ifdef CVf_LVALUE if (cvflags & CVf_LVALUE) - XPUSHs(sv_2mortal(newSVpvn("lvalue", 6))); + XPUSHs(newSVpvs_flags("lvalue", SVs_TEMP)); #endif if (cvflags & CVf_METHOD) - XPUSHs(sv_2mortal(newSVpvn("method", 6))); + XPUSHs(newSVpvs_flags("method", SVs_TEMP)); if (GvUNIQUE(CvGV((CV*)sv))) - XPUSHs(sv_2mortal(newSVpvn("unique", 6))); + XPUSHs(newSVpvs_flags("unique", SVs_TEMP)); break; case SVt_PVGV: - if (GvUNIQUE(sv)) - XPUSHs(sv_2mortal(newSVpvn("unique", 6))); + if (isGV_with_GP(sv) && GvUNIQUE(sv)) + XPUSHs(newSVpvs_flags("unique", SVs_TEMP)); break; default: break; @@ -220,18 +228,14 @@ usage: XS(XS_attributes__guess_stash) { + dVAR; dXSARGS; SV *rv, *sv; -#ifdef dXSTARGET - dXSTARGET; -#else - SV * TARG = sv_newmortal(); -#endif + dXSTARG; if (items != 1) { usage: - Perl_croak(aTHX_ - "Usage: attributes::_guess_stash $reference"); + croak_xs_usage(cv, "$reference"); } rv = ST(0); @@ -241,13 +245,13 @@ usage: sv = SvRV(rv); if (SvOBJECT(sv)) - sv_setpv(TARG, HvNAME(SvSTASH(sv))); + sv_setpvn(TARG, HvNAME_get(SvSTASH(sv)), HvNAMELEN_get(SvSTASH(sv))); #if 0 /* this was probably a bad idea */ else if (SvPADMY(sv)) sv_setsv(TARG, &PL_sv_no); /* unblessed lexical */ #endif else { - HV *stash = Nullhv; + const HV *stash = NULL; switch (SvTYPE(sv)) { case SVt_PVCV: if (CvGV(sv) && isGV(CvGV(sv)) && GvSTASH(CvGV(sv))) @@ -255,79 +259,51 @@ usage: else if (/* !CvANON(sv) && */ CvSTASH(sv)) stash = CvSTASH(sv); break; - case SVt_PVMG: - if (!(SvFAKE(sv) && SvTIED_mg(sv, PERL_MAGIC_glob))) - break; - /*FALLTHROUGH*/ case SVt_PVGV: - if (GvGP(sv) && GvESTASH((GV*)sv)) + if (isGV_with_GP(sv) && GvGP(sv) && GvESTASH((GV*)sv)) stash = GvESTASH((GV*)sv); break; default: break; } if (stash) - sv_setpv(TARG, HvNAME(stash)); + sv_setpvn(TARG, HvNAME_get(stash), HvNAMELEN_get(stash)); } -#ifdef dXSTARGET SvSETMAGIC(TARG); -#endif XSRETURN(1); } XS(XS_attributes_reftype) { + dVAR; dXSARGS; SV *rv, *sv; -#ifdef dXSTARGET - dXSTARGET; -#else - SV * TARG = sv_newmortal(); -#endif + dXSTARG; if (items != 1) { usage: - Perl_croak(aTHX_ - "Usage: attributes::reftype $reference"); + croak_xs_usage(cv, "$reference"); } rv = ST(0); ST(0) = TARG; - if (SvGMAGICAL(rv)) - mg_get(rv); + SvGETMAGIC(rv); if (!(SvOK(rv) && SvROK(rv))) goto usage; sv = SvRV(rv); sv_setpv(TARG, sv_reftype(sv, 0)); -#ifdef dXSTARGET - SvSETMAGIC(TARG); -#endif - - XSRETURN(1); -} - -XS(XS_attributes__warn_reserved) -{ - dXSARGS; -#ifdef dXSTARGET - dXSTARGET; -#else - SV * TARG = sv_newmortal(); -#endif - - if (items != 0) { - Perl_croak(aTHX_ - "Usage: attributes::_warn_reserved ()"); - } - - EXTEND(SP,1); - ST(0) = TARG; - sv_setiv(TARG, ckWARN(WARN_RESERVED) != 0); -#ifdef dXSTARGET SvSETMAGIC(TARG); -#endif XSRETURN(1); } +/* + * Local variables: + * c-indentation-style: bsd + * c-basic-offset: 4 + * indent-tabs-mode: t + * End: + * + * ex: set ts=8 sts=4 sw=4 noet: + */