/* universal.c
*
* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- * 2005, 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.
/* 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 seperate XS files which would then be pulled
+ * in by some to-be-written build process.
*/
#include "EXTERN.h"
* 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, const HV* const name_stash)
{
- AV* av;
- GV* gv;
- GV** gvp;
- HV* hv = Nullhv;
- SV* subgen = Nullsv;
+ dVAR;
+ AV* stash_linear_isa;
+ SV** svp;
const char *hvname;
+ I32 items;
/* 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;
hvname = HvNAME_get(stash);
if (strEQ(hvname, name))
- return &PL_sv_yes;
+ return TRUE;
if (strEQ(name, "UNIVERSAL"))
- return &PL_sv_yes;
-
- if (level > 100)
- Perl_croak(aTHX_ "Recursive inheritance detected in package '%s'",
- hvname);
-
- gvp = (GV**)hv_fetch(stash, "::ISA::CACHE::", 14, 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) );
- return sv;
- }
- }
- else {
- DEBUG_o( Perl_deb(aTHX_ "ISA Cache in package %s is stale\n",
- hvname) );
- hv_clear(hv);
- sv_setiv(subgen, PL_sub_generation);
+ return TRUE;
+
+ stash_linear_isa = mro_get_linear_isa(stash);
+ svp = AvARRAY(stash_linear_isa) + 1;
+ items = AvFILLp(stash_linear_isa);
+ while (items--) {
+ SV* const basename_sv = *svp++;
+ HV* const basestash = gv_stashsv(basename_sv, 0);
+ if (!basestash) {
+ if (ckWARN(WARN_SYNTAX))
+ Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
+ "Can't locate package %"SVf" for the parents of %s",
+ SVfARG(basename_sv), hvname);
+ continue;
}
+ if(name_stash == basestash || strEQ(name, SvPVX(basename_sv)))
+ return TRUE;
}
- 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)
- 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);
- 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);
- }
- }
- 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)
{
- const char *type = Nullch;
- HV *stash = Nullhv;
- HV *name_stash;
+ dVAR;
+ HV *stash;
- 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);
+ }
+ 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"
+bool
+Perl_sv_does(pTHX_ SV *sv, const char *name)
+{
+ const char *classname;
+ bool does_it;
+ SV *methodname;
+
+ 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_nolen(sv);
+ }
+
+ if (strEQ(name,classname))
+ return TRUE;
+
+ PUSHMARK(SP);
+ XPUSHs(sv);
+ XPUSHs(sv_2mortal(newSVpv(name, 0)));
+ PUTBACK;
+
+ methodname = sv_2mortal(newSVpv("isa", 0));
+ /* 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;
+}
+
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_Internals_hash_seed);
XS(XS_Internals_rehash_seed);
XS(XS_Internals_HvREHASH);
+XS(XS_Internals_inc_sub_generation);
+XS(XS_re_is_regexp);
+XS(XS_re_regname);
+XS(XS_re_regnames);
+XS(XS_re_regnames_count);
+XS(XS_Tie_Hash_NamedCapture_FETCH);
+XS(XS_Tie_Hash_NamedCapture_STORE);
+XS(XS_Tie_Hash_NamedCapture_DELETE);
+XS(XS_Tie_Hash_NamedCapture_CLEAR);
+XS(XS_Tie_Hash_NamedCapture_EXISTS);
+XS(XS_Tie_Hash_NamedCapture_FIRSTK);
+XS(XS_Tie_Hash_NamedCapture_NEXTK);
+XS(XS_Tie_Hash_NamedCapture_SCALAR);
+XS(XS_Tie_Hash_NamedCapture_flags);
void
Perl_boot_core_UNIVERSAL(pTHX)
{
- const 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 */
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("re::is_regexp", XS_re_is_regexp, file, "$");
+ newXSproto("re::regname", XS_re_regname, file, ";$$");
+ newXSproto("re::regnames", XS_re_regnames, file, ";$");
+ newXSproto("re::regnames_count", XS_re_regnames_count, file, "");
+ newXS("Tie::Hash::NamedCapture::FETCH", XS_Tie_Hash_NamedCapture_FETCH, file);
+ newXS("Tie::Hash::NamedCapture::STORE", XS_Tie_Hash_NamedCapture_STORE, file);
+ newXS("Tie::Hash::NamedCapture::DELETE", XS_Tie_Hash_NamedCapture_DELETE, file);
+ newXS("Tie::Hash::NamedCapture::CLEAR", XS_Tie_Hash_NamedCapture_CLEAR, file);
+ newXS("Tie::Hash::NamedCapture::EXISTS", XS_Tie_Hash_NamedCapture_EXISTS, file);
+ newXS("Tie::Hash::NamedCapture::FIRSTKEY", XS_Tie_Hash_NamedCapture_FIRSTK, file);
+ newXS("Tie::Hash::NamedCapture::NEXTKEY", XS_Tie_Hash_NamedCapture_NEXTK, file);
+ newXS("Tie::Hash::NamedCapture::SCALAR", XS_Tie_Hash_NamedCapture_SCALAR, file);
+ newXS("Tie::Hash::NamedCapture::flags", XS_Tie_Hash_NamedCapture_flags, file);
}
XS(XS_UNIVERSAL_isa)
{
+ dVAR;
dXSARGS;
- SV *sv;
- const char *name;
+ PERL_UNUSED_ARG(cv);
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 = SvPV_nolen_const(ST(1));
+ 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;
const char *name;
SV *rv;
HV *pkg = NULL;
+ PERL_UNUSED_ARG(cv);
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))))
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;
+ 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;
const char *undef;
+ PERL_UNUSED_ARG(cv);
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;
+ upg_version(sv, FALSE);
+ undef = NULL;
}
else {
sv = (SV*)&PL_sv_undef;
if (undef) {
if (pkg) {
- const char *name = HvNAME_get(pkg);
+ const char * const name = HvNAME_get(pkg);
Perl_croak(aTHX_
"%s does not define $%s::VERSION--version check failed",
name, name);
if ( !sv_derived_from(req, "version")) {
/* req may very well be R/O, so create a new object */
- SV *nsv = sv_newmortal();
- sv_setsv(nsv, req);
- req = nsv;
- upg_version(req);
+ req = sv_2mortal( new_version(req) );
+ }
+
+ if ( vcmp( req, sv ) > 0 ) {
+ if ( hv_exists((HV*)SvRV(req), "qv", 2 ) ) {
+ Perl_croak(aTHX_ "%s version %"SVf" required--"
+ "this is only version %"SVf"", HvNAME_get(pkg),
+ SVfARG(vnormal(req)),
+ SVfARG(vnormal(sv)));
+ } else {
+ Perl_croak(aTHX_ "%s version %"SVf" required--"
+ "this is only version %"SVf"", HvNAME_get(pkg),
+ SVfARG(vstringify(req)),
+ SVfARG(vstringify(sv)));
+ }
}
- if ( vcmp( req, sv ) > 0 )
- Perl_croak(aTHX_ "%s version %"SVf" (%"SVf") required--"
- "this is only version %"SVf" (%"SVf")", HvNAME_get(pkg),
- vnumify(req),vnormal(req),vnumify(sv),vnormal(sv));
}
if ( SvOK(sv) && sv_derived_from(sv, "version") ) {
- ST(0) = vnumify(sv);
+ ST(0) = vstringify(sv);
} else {
ST(0) = sv;
}
XS(XS_version_new)
{
+ dVAR;
dXSARGS;
+ PERL_UNUSED_ARG(cv);
if (items > 3)
Perl_croak(aTHX_ "Usage: version::new(class, version)");
SP -= items;
{
SV *vs = ST(1);
SV *rv;
- const char *classname;
+ 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));
- /* get the class if called as an object method */
- if ( sv_isobject(ST(0)) ) {
- classname = HvNAME(SvSTASH(SvRV(ST(0))));
- }
- else {
- classname = (char *)SvPV_nolen(ST(0));
- }
-
- if ( items == 1 ) {
- /* no parameter provided */
- if ( sv_isobject(ST(0)) ) {
- /* copy existing object */
- vs = ST(0);
- }
- else {
- /* create empty object */
- vs = sv_newmortal();
- sv_setpvn(vs,"",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();
rv = new_version(vs);
if ( strcmp(classname,"version") != 0 ) /* inherited new() */
- sv_bless(rv, gv_stashpv(classname,TRUE));
+ sv_bless(rv, gv_stashpv(classname, GV_ADD));
PUSHs(sv_2mortal(rv));
PUTBACK;
XS(XS_version_stringify)
{
+ dVAR;
dXSARGS;
+ PERL_UNUSED_ARG(cv);
if (items < 1)
Perl_croak(aTHX_ "Usage: version::stringify(lobj, ...)");
SP -= items;
{
- SV * lobj = Nullsv;
+ SV * lobj;
if (sv_derived_from(ST(0), "version")) {
lobj = SvRV(ST(0));
XS(XS_version_numify)
{
+ dVAR;
dXSARGS;
+ PERL_UNUSED_ARG(cv);
if (items < 1)
Perl_croak(aTHX_ "Usage: version::numify(lobj, ...)");
SP -= items;
{
- SV * lobj = Nullsv;
+ SV * lobj;
if (sv_derived_from(ST(0), "version")) {
lobj = SvRV(ST(0));
XS(XS_version_normal)
{
+ dVAR;
dXSARGS;
+ PERL_UNUSED_ARG(cv);
if (items < 1)
Perl_croak(aTHX_ "Usage: version::normal(lobj, ...)");
SP -= items;
{
- SV * lobj = Nullsv;
+ SV * lobj;
if (sv_derived_from(ST(0), "version")) {
lobj = SvRV(ST(0));
XS(XS_version_vcmp)
{
+ dVAR;
dXSARGS;
+ PERL_UNUSED_ARG(cv);
if (items < 1)
Perl_croak(aTHX_ "Usage: version::vcmp(lobj, ...)");
SP -= items;
{
- SV * lobj = Nullsv;
+ SV * lobj;
if (sv_derived_from(ST(0), "version")) {
lobj = SvRV(ST(0));
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 = Nullsv;
-
- if (sv_derived_from(ST(0), "version")) {
- lobj = SvRV(ST(0));
- }
- 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;
+ PERL_UNUSED_ARG(cv);
+ 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)
{
+ dVAR;
dXSARGS;
+ PERL_UNUSED_ARG(cv);
if (items < 1)
Perl_croak(aTHX_ "Usage: version::noop(lobj, ...)");
if (sv_derived_from(ST(0), "version"))
XS(XS_version_is_alpha)
{
+ dVAR;
dXSARGS;
+ PERL_UNUSED_ARG(cv);
if (items != 1)
Perl_croak(aTHX_ "Usage: version::is_alpha(lobj)");
SP -= items;
- {
- SV * lobj = Nullsv;
-
- if (sv_derived_from(ST(0), "version"))
- lobj = ST(0);
- else
- Perl_croak(aTHX_ "lobj is not of type version");
-{
- if ( hv_exists((HV*)SvRV(lobj), "alpha", 5 ) )
- 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;
+ PERL_UNUSED_ARG(cv);
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();
- char *version;
- if ( SvNOK(ver) ) /* may get too much accuracy */
- {
- char tbuf[64];
- sprintf(tbuf,"%.9"NVgf, SvNVX(ver));
- version = savepv(tbuf);
- }
- else
- {
- version = savesvpv(ver);
- }
- (void)scan_version(version,vs,TRUE);
- Safefree(version);
-
- PUSHs(vs);
+ if ( !SvVOK(ver) ) { /* only need to do with if not already v-string */
+ SV * const rv = sv_newmortal();
+ sv_setsv(rv,ver); /* make a duplicate */
+ upg_version(rv, TRUE);
+ PUSHs(rv);
}
else
{
XS(XS_utf8_is_utf8)
{
+ dVAR;
dXSARGS;
+ PERL_UNUSED_ARG(cv);
if (items != 1)
Perl_croak(aTHX_ "Usage: utf8::is_utf8(sv)");
- {
- const 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;
+ PERL_UNUSED_ARG(cv);
if (items != 1)
Perl_croak(aTHX_ "Usage: utf8::valid(sv)");
- {
- SV * sv = ST(0);
- {
- STRLEN len;
- const char *s = SvPV_const(sv,len);
- if (!SvUTF8(sv) || is_utf8_string((const 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;
+ PERL_UNUSED_ARG(cv);
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;
+ PERL_UNUSED_ARG(cv);
if (items != 1)
Perl_croak(aTHX_ "Usage: utf8::decode(sv)");
- {
- SV * sv = ST(0);
+ 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;
+ PERL_UNUSED_ARG(cv);
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;
+ PERL_UNUSED_ARG(cv);
if (items < 1 || items > 2)
Perl_croak(aTHX_ "Usage: utf8::downgrade(sv, failok=0)");
- {
- SV * sv = ST(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);
XS(XS_utf8_native_to_unicode)
{
+ dVAR;
dXSARGS;
const UV uv = SvUV(ST(0));
+ PERL_UNUSED_ARG(cv);
if (items > 1)
Perl_croak(aTHX_ "Usage: utf8::native_to_unicode(sv)");
XS(XS_utf8_unicode_to_native)
{
+ dVAR;
dXSARGS;
const UV uv = SvUV(ST(0));
+ PERL_UNUSED_ARG(cv);
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));
+ PERL_UNUSED_ARG(cv);
if (items == 1) {
if (SvREADONLY(sv))
XS(XS_Internals_SvREFCNT) /* This is dangerous stuff. */
{
+ dVAR;
dXSARGS;
- SV *sv = SvRV(ST(0));
+ SV * const sv = SvRV(ST(0));
+ PERL_UNUSED_ARG(cv);
if (items == 1)
XSRETURN_IV(SvREFCNT(sv) - 1); /* Minus the ref created for us. */
XS(XS_Internals_hv_clear_placehold)
{
+ dVAR;
dXSARGS;
- HV *hv = (HV *) SvRV(ST(0));
+ PERL_UNUSED_ARG(cv);
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;
+ PERL_UNUSED_ARG(cv);
if (items < 1 || items % 2 == 0)
Perl_croak(aTHX_ "Usage: PerlIO_get_layers(filehandle[,args])");
#ifdef USE_PERLIO
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;
- const char *key = SvPV_const(*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_fetchsv(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
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. */
dAXMARK;
XS(XS_Internals_rehash_seed)
{
+ dVAR;
/* Using dXSARGS would also have dITEM and dSP,
* which define 2 unused local variables. */
dAXMARK;
XS(XS_Internals_HvREHASH) /* Subject to change */
{
+ dVAR;
dXSARGS;
+ PERL_UNUSED_ARG(cv);
if (SvROK(ST(0))) {
- const 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_re_is_regexp)
+{
+ dVAR;
+ dXSARGS;
+ PERL_UNUSED_VAR(cv);
+
+ if (items != 1)
+ Perl_croak(aTHX_ "Usage: %s(%s)", "re::is_regexp", "sv");
+
+ SP -= items;
+
+ 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;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 0)
+ Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames_count", "");
+
+ SP -= items;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ ret = CALLREG_NAMED_BUFF_COUNT(rx);
+
+ SPAGAIN;
+
+ if (ret) {
+ XPUSHs(ret);
+ PUTBACK;
+ return;
+ } else {
+ XSRETURN_UNDEF;
+ }
+}
+
+XS(XS_re_regname)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+ PERL_UNUSED_ARG(cv);
+
+ if (items < 1 || items > 2)
+ Perl_croak(aTHX_ "Usage: %s(%s)", "re::regname", "name[, all ]");
+
+ SP -= items;
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ if (items == 2 && SvTRUE(ST(1))) {
+ flags = RXf_HASH_ALL;
+ } else {
+ flags = RXf_HASH_ONE;
+ }
+ ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(0), (flags | RXf_HASH_REGNAME));
+
+ if (ret) {
+ if (SvROK(ret))
+ XPUSHs(ret);
+ else
+ XPUSHs(SvREFCNT_inc(ret));
+ XSRETURN(1);
+ }
+ XSRETURN_UNDEF;
+}
+
+
+XS(XS_re_regnames)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV *ret;
+ AV *av;
+ I32 length;
+ I32 i;
+ SV **entry;
+ PERL_UNUSED_ARG(cv);
+
+ if (items > 1)
+ Perl_croak(aTHX_ "Usage: %s(%s)", "re::regnames", "[all]");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ if (items == 1 && SvTRUE(ST(0))) {
+ flags = RXf_HASH_ALL;
+ } else {
+ flags = RXf_HASH_ONE;
+ }
+
+ SP -= items;
+
+ ret = CALLREG_NAMED_BUFF_ALL(rx, (flags | RXf_HASH_REGNAMES));
+
+ SPAGAIN;
+
+ SP -= items;
+
+ if (!ret)
+ XSRETURN_UNDEF;
+
+ av = (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()");
+
+ XPUSHs(*entry);
+ }
+ PUTBACK;
+ return;
+}
+
+XS(XS_Tie_Hash_NamedCapture_FETCH)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 2)
+ Perl_croak(aTHX_ "Usage: Tie::Hash::NamedCapture::STORE($key, $flags)");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0))));
+ ret = CALLREG_NAMED_BUFF_FETCH(rx, ST(1), flags);
+
+ SPAGAIN;
+
+ if (ret) {
+ if (SvROK(ret))
+ XPUSHs(ret);
+ else
+ XPUSHs(SvREFCNT_inc(ret));
+ PUTBACK;
+ return;
+ }
+ XSRETURN_UNDEF;
+}
+
+XS(XS_Tie_Hash_NamedCapture_STORE)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 3)
+ Perl_croak(aTHX_ "Usage: Tie::Hash::NamedCapture::STORE($key, $value, $flags)");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx) {
+ if (!PL_localizing)
+ Perl_croak(aTHX_ PL_no_modify);
+ else
+ XSRETURN_UNDEF;
+ }
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0))));
+ CALLREG_NAMED_BUFF_STORE(rx,ST(1), ST(2), flags);
+}
+
+XS(XS_Tie_Hash_NamedCapture_DELETE)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+ U32 flags;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 2)
+ Perl_croak(aTHX_ "Usage: Tie::Hash::NamedCapture::DELETE($key, $flags)");
+
+ if (!rx)
+ Perl_croak(aTHX_ PL_no_modify);
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0))));
+ CALLREG_NAMED_BUFF_DELETE(rx, ST(1), flags);
+}
+
+XS(XS_Tie_Hash_NamedCapture_CLEAR)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 1)
+ Perl_croak(aTHX_ "Usage: Tie::Hash::NamedCapture::CLEAR($flags)");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ Perl_croak(aTHX_ PL_no_modify);
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0))));
+ CALLREG_NAMED_BUFF_CLEAR(rx, flags);
+}
+
+XS(XS_Tie_Hash_NamedCapture_EXISTS)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 2)
+ Perl_croak(aTHX_ "Usage: Tie::Hash::NamedCapture::EXISTS($key, $flags)");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0))));
+ ret = CALLREG_NAMED_BUFF_EXISTS(rx, ST(1), flags);
+
+ SPAGAIN;
+
+ XPUSHs(ret);
+ PUTBACK;
+ return;
+}
+
+XS(XS_Tie_Hash_NamedCapture_FIRSTK)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 1)
+ Perl_croak(aTHX_ "Usage: Tie::Hash::NamedCapture::FIRSTKEY()");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0))));
+ ret = CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags);
+
+ SPAGAIN;
+
+ if (ret) {
+ XPUSHs(SvREFCNT_inc(ret));
+ PUTBACK;
+ } else {
+ XSRETURN_UNDEF;
+ }
+
+}
+
+XS(XS_Tie_Hash_NamedCapture_NEXTK)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 2)
+ Perl_croak(aTHX_ "Usage: Tie::Hash::NamedCapture::NEXTKEY($lastkey)");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0))));
+ ret = CALLREG_NAMED_BUFF_NEXTKEY(rx, ST(1), flags);
+
+ SPAGAIN;
+
+ if (ret) {
+ XPUSHs(ret);
+ } else {
+ XSRETURN_UNDEF;
+ }
+ PUTBACK;
+}
+
+XS(XS_Tie_Hash_NamedCapture_SCALAR)
+{
+ dVAR;
+ dXSARGS;
+ REGEXP * rx;
+ U32 flags;
+ SV * ret;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 1)
+ Perl_croak(aTHX_ "Usage: Tie::Hash::NamedCapture::SCALAR()");
+
+ rx = PL_curpm ? PM_GETRE(PL_curpm) : NULL;
+
+ if (!rx)
+ XSRETURN_UNDEF;
+
+ SP -= items;
+
+ flags = (U32)INT2PTR(IV,SvIV(SvRV((SV*)ST(0))));
+ ret = CALLREG_NAMED_BUFF_SCALAR(rx, flags);
+
+ SPAGAIN;
+
+ if (ret) {
+ XPUSHs(ret);
+ PUTBACK;
+ return;
+ } else {
+ XSRETURN_UNDEF;
+ }
+}
+
+XS(XS_Tie_Hash_NamedCapture_flags)
+{
+ dVAR;
+ dXSARGS;
+ PERL_UNUSED_ARG(cv);
+
+ if (items != 0)
+ Perl_croak(aTHX_ "Usage: Tie::Hash::NamedCapture::flags()");
+
+ XPUSHs(sv_2mortal(newSVuv(RXf_HASH_ONE)));
+ XPUSHs(sv_2mortal(newSVuv(RXf_HASH_ALL)));
+ PUTBACK;
+ return;
+}
+
+
/*
* Local variables:
* c-indentation-style: bsd
https://perl5.git.perl.org / perl5.git / blobdiff