/* xsutils.c
*
- * Copyright (c) 1999-2003, Larry Wall
+ * Copyright (C) 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.
*/
/*
- * "Perilous to us all are the devices of an art deeper than we possess
- * ourselves." --Gandalf
+ * 'Perilous to us all are the devices of an art deeper than we possess
+ * ourselves.' --Gandalf
+ *
+ * [p.597 of _The Lord of the Rings_, III/xi: "The PalantÃr"]
*/
*/
/* 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);
/*
* 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);
}
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--;
}
case SVt_PVCV:
switch ((int)len) {
case 6:
- switch (*name) {
- case 'a':
- if (strEQ(name, "assertion")) {
- if (negated)
- CvFLAGS((CV*)sv) &= ~CVf_ASSERTION;
- else
- CvFLAGS((CV*)sv) |= CVf_ASSERTION;
- continue;
- }
- break;
- case 'l':
+ switch (name[3]) {
#ifdef CVf_LVALUE
- if (strEQ(name, "lvalue")) {
- if (negated)
- CvFLAGS((CV*)sv) &= ~CVf_LVALUE;
- else
- CvFLAGS((CV*)sv) |= CVf_LVALUE;
- continue;
- }
-#endif /* defined CVf_LVALUE */
- if (strEQ(name, "locked")) {
+ case 'l':
+ if (memEQ(name, "lvalue", 6)) {
if (negated)
- CvFLAGS((CV*)sv) &= ~CVf_LOCKED;
+ CvFLAGS(MUTABLE_CV(sv)) &= ~CVf_LVALUE;
else
- CvFLAGS((CV*)sv) |= CVf_LOCKED;
+ CvFLAGS(MUTABLE_CV(sv)) |= CVf_LVALUE;
continue;
}
break;
- case 'm':
- if (strEQ(name, "method")) {
+#endif
+ case 'k':
+ if (memEQ(name, "locked", 6)) {
if (negated)
- CvFLAGS((CV*)sv) &= ~CVf_METHOD;
+ CvFLAGS(MUTABLE_CV(sv)) &= ~CVf_LOCKED;
else
- CvFLAGS((CV*)sv) |= CVf_METHOD;
+ CvFLAGS(MUTABLE_CV(sv)) |= CVf_LOCKED;
continue;
}
break;
- case 'u':
- if (strEQ(name, "unique")) {
+ case 'h':
+ if (memEQ(name, "method", 6)) {
if (negated)
- GvUNIQUE_off(CvGV((CV*)sv));
+ CvFLAGS(MUTABLE_CV(sv)) &= ~CVf_METHOD;
else
- GvUNIQUE_on(CvGV((CV*)sv));
+ CvFLAGS(MUTABLE_CV(sv)) |= CVf_METHOD;
continue;
}
break;
default:
switch ((int)len) {
case 6:
- switch (*name) {
- case 's':
- if (strEQ(name, "shared")) {
+ 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 'u':
- if (strEQ(name, "unique")) {
- if (SvTYPE(sv) == SVt_PVGV) {
- if (negated)
+ 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;
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, "$");
newXSproto("attributes::_fetch_attrs", XS_attributes__fetch_attrs, file, "$");
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);
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);
switch (SvTYPE(sv)) {
case SVt_PVCV:
- cvflags = CvFLAGS((CV*)sv);
+ cvflags = CvFLAGS((const 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)));
- if (GvUNIQUE(CvGV((CV*)sv)))
- XPUSHs(sv_2mortal(newSVpvn("unique", 6)));
- if (cvflags & CVf_ASSERTION)
- XPUSHs(sv_2mortal(newSVpvn("assertion", 9)));
+ XPUSHs(newSVpvs_flags("method", SVs_TEMP));
+ if (GvUNIQUE(CvGV((const CV *)sv)))
+ 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;
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);
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)))
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))
- stash = GvESTASH((GV*)sv);
+ if (isGV_with_GP(sv) && GvGP(sv) && GvESTASH(MUTABLE_GV(sv)))
+ stash = GvESTASH(MUTABLE_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:
+ */
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