/* universal.c
*
* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- * by Larry Wall and others
+ * 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.
* 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,
+STATIC bool
+S_isa_lookup(pTHX_ HV *stash, const char *name, const HV* const name_stash,
int len, int level)
{
+ dVAR;
AV* av;
GV* gv;
GV** gvp;
- HV* hv = Nullhv;
- SV* subgen = Nullsv;
+ HV* hv = NULL;
+ SV* subgen = NULL;
+ const char *hvname;
/* 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 (name_stash && ((const HV *)stash == name_stash))
+ return TRUE;
- if (strEQ(HvNAME(stash), name))
- return &PL_sv_yes;
+ hvname = HvNAME_get(stash);
+
+ if (strEQ(hvname, name))
+ return TRUE;
if (strEQ(name, "UNIVERSAL"))
- return &PL_sv_yes;
+ return TRUE;
if (level > 100)
Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'",
- HvNAME(stash));
+ hvname);
- gvp = (GV**)hv_fetch(stash, "::ISA::CACHE::", 14, FALSE);
+ gvp = (GV**)hv_fetchs(stash, "::ISA::CACHE::", FALSE);
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;
+ SV** const svp = (SV**)hv_fetch(hv, name, len, FALSE);
+ if (svp) {
+ SV * const sv = *svp;
+#ifdef DEBUGGING
+ if (sv != &PL_sv_undef)
+ DEBUG_o( Perl_deb(aTHX_ "Using cached ISA %s for package %s\n",
+ name, hvname) );
+#endif
+ return (sv == &PL_sv_yes);
}
}
else {
DEBUG_o( Perl_deb(aTHX_ "ISA Cache in package %s is stale\n",
- HvNAME(stash)) );
+ hvname) );
hv_clear(hv);
sv_setiv(subgen, PL_sub_generation);
}
}
- gvp = (GV**)hv_fetch(stash,"ISA",3,FALSE);
+ gvp = (GV**)hv_fetchs(stash, "ISA", FALSE);
if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (av = GvAV(gv))) {
if (!hv || !subgen) {
- gvp = (GV**)hv_fetch(stash, "::ISA::CACHE::", 14, TRUE);
+ gvp = (GV**)hv_fetchs(stash, "::ISA::CACHE::", TRUE);
gv = *gvp;
/* NOTE: No support for tied ISA */
I32 items = AvFILLp(av) + 1;
while (items--) {
- SV* sv = *svp++;
- HV* basestash = gv_stashsv(sv, FALSE);
+ SV* const sv = *svp++;
+ HV* const basestash = gv_stashsv(sv, 0);
if (!basestash) {
if (ckWARN(WARN_MISC))
Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "Can't locate package %"SVf" for @%s::ISA",
- sv, HvNAME(stash));
+ "Can't locate package %"SVf" for @%s::ISA",
+ SVfARG(sv), hvname);
continue;
}
- if (&PL_sv_yes == isa_lookup(basestash, name, name_stash,
- len, level + 1)) {
+ if (isa_lookup(basestash, name, name_stash, len, level + 1)) {
(void)hv_store(hv,name,len,&PL_sv_yes,0);
- return &PL_sv_yes;
+ return TRUE;
}
}
(void)hv_store(hv,name,len,&PL_sv_no,0);
}
}
- return &PL_sv_no;
+ return FALSE;
}
/*
=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<UNIVERSAL::isa>. It works
-for class names as well as for objects.
+Returns a boolean indicating whether the SV is derived from the specified class
+I<at the C level>. To check derivation at the Perl level, call C<isa()> as a
+normal Perl method.
=cut
*/
bool
Perl_sv_derived_from(pTHX_ SV *sv, const char *name)
{
- char *type;
+ dVAR;
HV *stash;
- HV *name_stash;
-
- stash = Nullhv;
- type = Nullch;
- 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);
+ if (stash) {
+ HV * const name_stash = gv_stashpv(name, 0);
+ return isa_lookup(stash, name, name_stash, strlen(name), 0);
+ }
+ else
+ return FALSE;
- return (type && strEQ(type,name)) ||
- (stash && isa_lookup(stash, name, name_stash, strlen(name), 0)
- == &PL_sv_yes)
- ? TRUE
- : FALSE ;
}
+/*
+=for apidoc sv_does
+
+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.
+
+=cut
+*/
+
#include "XSUB.h"
-void XS_UNIVERSAL_isa(pTHX_ CV *cv);
-void XS_UNIVERSAL_can(pTHX_ CV *cv);
-void XS_UNIVERSAL_VERSION(pTHX_ CV *cv);
+bool
+Perl_sv_does(pTHX_ SV *sv, const char *name)
+{
+ const char *classname;
+ bool does_it;
+
+ dSP;
+ ENTER;
+ SAVETMPS;
+
+ SvGETMAGIC(sv);
+
+ if (!SvOK(sv) || !(SvROK(sv) || (SvPOK(sv) && SvCUR(sv))
+ || (SvGMAGICAL(sv) && SvPOKp(sv) && SvCUR(sv))))
+ return FALSE;
+
+ if (sv_isobject(sv)) {
+ classname = sv_reftype(SvRV(sv),TRUE);
+ } else {
+ classname = SvPV(sv,PL_na);
+ }
+
+ if (strEQ(name,classname))
+ return TRUE;
+
+ PUSHMARK(SP);
+ XPUSHs(sv);
+ XPUSHs(sv_2mortal(newSVpv(name, 0)));
+ PUTBACK;
+
+ call_method("isa", G_SCALAR);
+ SPAGAIN;
+
+ does_it = SvTRUE( TOPs );
+ FREETMPS;
+ LEAVE;
+
+ return does_it;
+}
+
+PERL_XS_EXPORT_C void XS_UNIVERSAL_isa(pTHX_ CV *cv);
+PERL_XS_EXPORT_C void XS_UNIVERSAL_can(pTHX_ CV *cv);
+PERL_XS_EXPORT_C void XS_UNIVERSAL_DOES(pTHX_ CV *cv);
+PERL_XS_EXPORT_C void XS_UNIVERSAL_VERSION(pTHX_ CV *cv);
XS(XS_version_new);
XS(XS_version_stringify);
XS(XS_version_numify);
+XS(XS_version_normal);
XS(XS_version_vcmp);
XS(XS_version_boolean);
+#ifdef HASATTRIBUTE_NORETURN
+XS(XS_version_noop) __attribute__noreturn__;
+#else
XS(XS_version_noop);
+#endif
XS(XS_version_is_alpha);
XS(XS_version_qv);
XS(XS_utf8_is_utf8);
XS(XS_Internals_hash_seed);
XS(XS_Internals_rehash_seed);
XS(XS_Internals_HvREHASH);
+XS(XS_Internals_inc_sub_generation);
void
Perl_boot_core_UNIVERSAL(pTHX)
{
- char *file = __FILE__;
+ dVAR;
+ static const char file[] = __FILE__;
newXS("UNIVERSAL::isa", XS_UNIVERSAL_isa, file);
newXS("UNIVERSAL::can", XS_UNIVERSAL_can, file);
+ newXS("UNIVERSAL::DOES", XS_UNIVERSAL_DOES, file);
newXS("UNIVERSAL::VERSION", XS_UNIVERSAL_VERSION, file);
{
/* register the overloading (type 'A') magic */
newXS("version::stringify", XS_version_stringify, file);
newXS("version::(0+", XS_version_numify, file);
newXS("version::numify", XS_version_numify, file);
+ newXS("version::normal", XS_version_normal, file);
newXS("version::(cmp", XS_version_vcmp, file);
newXS("version::(<=>", XS_version_vcmp, file);
newXS("version::vcmp", XS_version_vcmp, file);
newXSproto("Internals::hash_seed",XS_Internals_hash_seed, file, "");
newXSproto("Internals::rehash_seed",XS_Internals_rehash_seed, file, "");
newXSproto("Internals::HvREHASH", XS_Internals_HvREHASH, file, "\\%");
+ newXSproto("Internals::inc_sub_generation",XS_Internals_inc_sub_generation,
+ file, "");
}
XS(XS_UNIVERSAL_isa)
{
+ dVAR;
dXSARGS;
- SV *sv;
- char *name;
- STRLEN n_a;
if (items != 2)
Perl_croak(aTHX_ "Usage: UNIVERSAL::isa(reference, kind)");
+ else {
+ SV * const sv = ST(0);
+ const char *name;
- 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;
+ 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)");
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)) {
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)));
}
XSRETURN(1);
}
+XS(XS_UNIVERSAL_DOES)
+{
+ dVAR;
+ dXSARGS;
+
+ 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;
if (SvROK(ST(0))) {
sv = (SV*)SvRV(ST(0));
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;
if ( !sv_derived_from(sv, "version"))
upg_version(sv);
- undef = Nullch;
+ undef = NULL;
}
else {
sv = (SV*)&PL_sv_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(req, "version")) {
/* req may very well be R/O, so create a new object */
- SV *nsv = sv_newmortal();
+ SV * const nsv = sv_newmortal();
sv_setsv(nsv, req);
req = nsv;
upg_version(req);
if ( vcmp( req, sv ) > 0 )
Perl_croak(aTHX_ "%s version %"SVf" (%"SVf") required--"
- "this is only version %"SVf" (%"SVf")", HvNAME(pkg),
- vnumify(req),vnormal(req),vnumify(sv),vnormal(sv));
+ "this is only version %"SVf" (%"SVf")", HvNAME_get(pkg),
+ SVfARG(vnumify(req)),
+ SVfARG(vnormal(req)),
+ SVfARG(vnumify(sv)),
+ SVfARG(vnormal(sv)));
}
if ( SvOK(sv) && sv_derived_from(sv, "version") ) {
XS(XS_version_new)
{
+ dVAR;
dXSARGS;
if (items > 3)
Perl_croak(aTHX_ "Usage: version::new(class, version)");
SP -= items;
{
- char * class = (char *)SvPV_nolen(ST(0));
SV *vs = ST(1);
SV *rv;
- if (items == 3 )
- {
- vs = sv_newmortal();
- Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen(ST(2)));
+ 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 || vs == &PL_sv_undef ) { /* no param or explicit undef */
+ /* create empty object */
+ vs = sv_newmortal();
+ sv_setpvn(vs,"",0);
+ }
+ else if ( items == 3 ) {
+ vs = sv_newmortal();
+ Perl_sv_setpvf(aTHX_ vs,"v%s",SvPV_nolen_const(ST(2)));
}
rv = new_version(vs);
- if ( strcmp(class,"version") != 0 ) /* inherited new() */
- sv_bless(rv, gv_stashpv(class,TRUE));
+ if ( strcmp(classname,"version") != 0 ) /* inherited new() */
+ sv_bless(rv, gv_stashpv(classname, GV_ADD));
PUSHs(sv_2mortal(rv));
PUTBACK;
XS(XS_version_stringify)
{
+ dVAR;
dXSARGS;
if (items < 1)
Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)");
SV * lobj;
if (sv_derived_from(ST(0), "version")) {
- SV *tmp = SvRV(ST(0));
- lobj = tmp;
+ lobj = SvRV(ST(0));
}
else
Perl_croak(aTHX_ "lobj is not of type version");
XS(XS_version_numify)
{
+ dVAR;
dXSARGS;
if (items < 1)
Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)");
SV * lobj;
if (sv_derived_from(ST(0), "version")) {
- SV *tmp = SvRV(ST(0));
- lobj = tmp;
+ lobj = SvRV(ST(0));
}
else
Perl_croak(aTHX_ "lobj is not of type version");
}
}
+XS(XS_version_normal)
+{
+ dVAR;
+ dXSARGS;
+ if (items < 1)
+ Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)");
+ SP -= items;
+ {
+ SV * lobj;
+
+ if (sv_derived_from(ST(0), "version")) {
+ lobj = SvRV(ST(0));
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
+
+ PUSHs(sv_2mortal(vnormal(lobj)));
+
+ PUTBACK;
+ return;
+ }
+}
+
XS(XS_version_vcmp)
{
+ dVAR;
dXSARGS;
if (items < 1)
Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)");
SV * lobj;
if (sv_derived_from(ST(0), "version")) {
- SV *tmp = SvRV(ST(0));
- lobj = tmp;
+ lobj = SvRV(ST(0));
}
else
Perl_croak(aTHX_ "lobj is not of type version");
SV *rs;
SV *rvs;
SV * robj = ST(1);
- IV swap = (IV)SvIV(ST(2));
+ const IV swap = (IV)SvIV(ST(2));
if ( ! sv_derived_from(robj, "version") )
{
XS(XS_version_boolean)
{
- dXSARGS;
- if (items < 1)
- Perl_croak(aTHX_ "Usage: version::boolean(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;
- rs = newSViv( vcmp(lobj,new_version(newSVpvn("0",1))) );
- PUSHs(sv_2mortal(rs));
- }
-
- PUTBACK;
- return;
- }
+ dVAR;
+ dXSARGS;
+ if (items < 1)
+ Perl_croak(aTHX_ "Usage: version::boolean(lobj, ...)");
+ SP -= items;
+ if (sv_derived_from(ST(0), "version")) {
+ SV * const lobj = SvRV(ST(0));
+ SV * const rs = newSViv( vcmp(lobj,new_version(newSVpvs("0"))) );
+ PUSHs(sv_2mortal(rs));
+ PUTBACK;
+ return;
+ }
+ else
+ Perl_croak(aTHX_ "lobj is not of type version");
}
XS(XS_version_noop)
{
- 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)
+ Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)");
+ if (sv_derived_from(ST(0), "version"))
+ Perl_croak(aTHX_ "operation not supported with version object");
+ else
+ 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)
Perl_croak(aTHX_ "Usage: version::is_alpha(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");
-{
- I32 len = av_len((AV *)lobj);
- I32 digit = SvIVX(*av_fetch((AV *)lobj, len, 0));
- if ( digit < 0 )
- XSRETURN_YES;
- else
- XSRETURN_NO;
-}
+ if (sv_derived_from(ST(0), "version")) {
+ SV * const lobj = ST(0);
+ if ( hv_exists((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_qv)
{
+ dVAR;
dXSARGS;
if (items != 1)
Perl_croak(aTHX_ "Usage: version::qv(ver)");
SP -= items;
{
SV * ver = ST(0);
- if ( !SvVOK(ver) ) /* only need to do with if not already v-string */
- {
- SV *vs = sv_newmortal();
+ if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */
+ SV * const vs = sv_newmortal();
char *version;
if ( SvNOK(ver) ) /* may get too much accuracy */
{
char tbuf[64];
- sprintf(tbuf,"%.9"NVgf, SvNVX(ver));
- version = savepv(tbuf);
+#ifdef USE_LOCALE_NUMERIC
+ char *loc = setlocale(LC_NUMERIC, "C");
+#endif
+ STRLEN len = my_snprintf(tbuf, sizeof(tbuf), "%.9"NVgf, SvNVX(ver));
+#ifdef USE_LOCALE_NUMERIC
+ setlocale(LC_NUMERIC, loc);
+#endif
+ while (tbuf[len-1] == '0' && len > 0) len--;
+ version = savepvn(tbuf, len);
}
else
{
- version = savepv(SvPV_nolen(ver));
+ version = savesvpv(ver);
}
(void)scan_version(version,vs,TRUE);
Safefree(version);
XS(XS_utf8_is_utf8)
{
+ dVAR;
dXSARGS;
if (items != 1)
Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)");
- {
- SV * sv = ST(0);
- {
- if (SvUTF8(sv))
- XSRETURN_YES;
- else
- XSRETURN_NO;
- }
+ else {
+ const SV * const sv = ST(0);
+ if (SvUTF8(sv))
+ XSRETURN_YES;
+ else
+ XSRETURN_NO;
}
XSRETURN_EMPTY;
}
XS(XS_utf8_valid)
{
+ dVAR;
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;
- }
- }
+ 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;
}
XS(XS_utf8_encode)
{
+ dVAR;
dXSARGS;
if (items != 1)
Perl_croak(aTHX_ "Usage: utf8::encode(sv)");
- {
- SV * sv = ST(0);
-
- sv_utf8_encode(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;
-
- RETVAL = sv_utf8_decode(sv);
+ else {
+ SV * const sv = ST(0);
+ const bool RETVAL = sv_utf8_decode(sv);
ST(0) = boolSV(RETVAL);
sv_2mortal(ST(0));
}
XS(XS_utf8_upgrade)
{
+ dVAR;
dXSARGS;
if (items != 1)
Perl_croak(aTHX_ "Usage: utf8::upgrade(sv)");
- {
- SV * sv = ST(0);
+ else {
+ SV * const sv = ST(0);
STRLEN RETVAL;
dXSTARG;
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));
- }
+ 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));
}
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)");
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)");
XS(XS_Internals_SvREADONLY) /* This is dangerous stuff. */
{
+ dVAR;
dXSARGS;
- SV *sv = SvRV(ST(0));
+ SV * const sv = SvRV(ST(0));
+
if (items == 1) {
if (SvREADONLY(sv))
XSRETURN_YES;
XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */
{
+ dVAR;
dXSARGS;
- SV *sv = SvRV(ST(0));
+ SV * const sv = SvRV(ST(0));
+
if (items == 1)
XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */
else if (items == 2) {
XS(XS_Internals_hv_clear_placehold)
{
+ dVAR;
dXSARGS;
- HV *hv = (HV *) SvRV(ST(0));
+
if (items != 1)
Perl_croak(aTHX_ "Usage: UNIVERSAL::hv_clear_placeholders(hv)");
- hv_clear_placeholders(hv);
- XSRETURN(0);
+ else {
+ HV * const hv = (HV *) SvRV(ST(0));
+ hv_clear_placeholders(hv);
+ XSRETURN(0);
+ }
}
XS(XS_Regexp_DESTROY)
{
-
+ PERL_UNUSED_CONTEXT;
+ PERL_UNUSED_ARG(cv);
}
XS(XS_PerlIO_get_layers)
{
+ dVAR;
dXSARGS;
if (items < 1 || items % 2 == 0)
Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])");
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':
if (!isGV(sv)) {
if (SvROK(sv) && isGV(SvRV(sv)))
gv = (GV*)SvRV(sv);
- else
- gv = gv_fetchpv(SvPVX(sv), FALSE, SVt_PVIO);
+ 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;
+ 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);
- namsvp = av_fetch(av, i - 2, FALSE);
- argsvp = av_fetch(av, i - 1, FALSE);
- 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);
+ XPUSHs(namok
+ ? newSVpvn(SvPVX_const(*namsvp), SvCUR(*namsvp))
+ : &PL_sv_undef);
+ XPUSHs(argok
+ ? newSVpvn(SvPVX_const(*argsvp), SvCUR(*argsvp))
+ : &PL_sv_undef);
if (flgok)
XPUSHi(SvIVX(*flgsvp));
else
else {
if (namok && argok)
XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf"(%"SVf")",
- *namsvp, *argsvp));
+ SVfARG(*namsvp),
+ SVfARG(*argsvp)));
else if (namok)
- XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf, *namsvp));
+ XPUSHs(Perl_newSVpvf(aTHX_ "%"SVf,
+ SVfARG(*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("utf8"));
nitem++;
}
}
XS(XS_Internals_hash_seed)
{
+ dVAR;
/* Using dXSARGS would also have dITEM and dSP,
* which define 2 unused local variables. */
- dMARK; dAX;
+ 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. */
- dMARK; dAX;
+ dAXMARK;
+ PERL_UNUSED_ARG(cv);
+ PERL_UNUSED_VAR(mark);
XSRETURN_UV(PL_rehash_seed);
}
XS(XS_Internals_HvREHASH) /* Subject to change */
{
+ dVAR;
dXSARGS;
if (SvROK(ST(0))) {
- HV *hv = (HV *) SvRV(ST(0));
+ const HV * const hv = (HV *) SvRV(ST(0));
if (items == 1 && SvTYPE(hv) == SVt_PVHV) {
if (HvREHASH(hv))
XSRETURN_YES;
}
Perl_croak(aTHX_ "Internals::HvREHASH $hashref");
}
+
+XS(XS_Internals_inc_sub_generation)
+{
+ dVAR;
+ /* Using dXSARGS would also have dITEM and dSP,
+ * which define 2 unused local variables. */
+ dAXMARK;
+ PERL_UNUSED_ARG(cv);
+ PERL_UNUSED_VAR(mark);
+ ++PL_sub_generation;
+ XSRETURN_EMPTY;
+}
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
https://perl5.git.perl.org / perl5.git / blobdiff