/* gv.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
+ * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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.
#define PERL_IN_GV_C
#include "perl.h"
+static const char S_autoload[] = "AUTOLOAD";
+static const STRLEN S_autolen = sizeof(S_autoload)-1;
+
+
+#ifdef PERL_DONT_CREATE_GVSV
+GV *
+Perl_gv_SVadd(pTHX_ GV *gv)
+{
+ if (!gv || SvTYPE((SV*)gv) != SVt_PVGV)
+ Perl_croak(aTHX_ "Bad symbol for scalar");
+ if (!GvSV(gv))
+ GvSV(gv) = newSV(0);
+ return gv;
+}
+#endif
+
GV *
Perl_gv_AVadd(pTHX_ register GV *gv)
{
GV *
Perl_gv_IOadd(pTHX_ register GV *gv)
{
- if (!gv || SvTYPE((SV*)gv) != SVt_PVGV)
- Perl_croak(aTHX_ "Bad symbol for filehandle");
+ dVAR;
+ if (!gv || SvTYPE((SV*)gv) != SVt_PVGV) {
+
+ /*
+ * if it walks like a dirhandle, then let's assume that
+ * this is a dirhandle.
+ */
+ const char * const fh =
+ PL_op->op_type == OP_READDIR ||
+ PL_op->op_type == OP_TELLDIR ||
+ PL_op->op_type == OP_SEEKDIR ||
+ PL_op->op_type == OP_REWINDDIR ||
+ PL_op->op_type == OP_CLOSEDIR ?
+ "dirhandle" : "filehandle";
+ Perl_croak(aTHX_ "Bad symbol for %s", fh);
+ }
+
if (!GvIOp(gv)) {
#ifdef GV_UNIQUE_CHECK
if (GvUNIQUE(gv)) {
GV *
Perl_gv_fetchfile(pTHX_ const char *name)
{
+ dVAR;
char smallbuf[256];
char *tmpbuf;
STRLEN tmplen;
GV *gv;
if (!PL_defstash)
- return Nullgv;
+ return NULL;
tmplen = strlen(name) + 2;
if (tmplen < sizeof smallbuf)
tmpbuf = smallbuf;
else
- New(603, tmpbuf, tmplen + 1, char);
+ Newx(tmpbuf, tmplen + 1, char);
/* This is where the debugger's %{"::_<$filename"} hash is created */
tmpbuf[0] = '_';
tmpbuf[1] = '<';
- strcpy(tmpbuf + 2, name);
+ memcpy(tmpbuf + 2, name, tmplen - 1);
gv = *(GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, TRUE);
if (!isGV(gv)) {
gv_init(gv, PL_defstash, tmpbuf, tmplen, FALSE);
- sv_setpv(GvSV(gv), name);
+#ifdef PERL_DONT_CREATE_GVSV
+ GvSV(gv) = newSVpvn(name, tmplen - 2);
+#else
+ sv_setpvn(GvSV(gv), name, tmplen - 2);
+#endif
if (PERLDB_LINE)
- hv_magic(GvHVn(gv_AVadd(gv)), Nullgv, PERL_MAGIC_dbfile);
+ hv_magic(GvHVn(gv_AVadd(gv)), NULL, PERL_MAGIC_dbfile);
}
if (tmpbuf != smallbuf)
Safefree(tmpbuf);
return gv;
}
+/*
+=for apidoc gv_const_sv
+
+If C<gv> is a typeglob whose subroutine entry is a constant sub eligible for
+inlining, or C<gv> is a placeholder reference that would be promoted to such
+a typeglob, then returns the value returned by the sub. Otherwise, returns
+NULL.
+
+=cut
+*/
+
+SV *
+Perl_gv_const_sv(pTHX_ GV *gv)
+{
+ if (SvTYPE(gv) == SVt_PVGV)
+ return cv_const_sv(GvCVu(gv));
+ return SvROK(gv) ? SvRV(gv) : NULL;
+}
+
+GP *
+Perl_newGP(pTHX_ GV *const gv)
+{
+ GP *gp;
+ const char *const file = CopFILE(PL_curcop) ? CopFILE(PL_curcop) : "";
+ STRLEN len = strlen(file);
+ U32 hash;
+
+ PERL_HASH(hash, file, len);
+
+ Newxz(gp, 1, GP);
+
+#ifndef PERL_DONT_CREATE_GVSV
+ gp->gv_sv = newSV(0);
+#endif
+
+ gp->gp_line = CopLINE(PL_curcop);
+ /* XXX Ideally this cast would be replaced with a change to const char*
+ in the struct. */
+ gp->gp_file_hek = share_hek(file, len, hash);
+ gp->gp_egv = gv;
+ gp->gp_refcnt = 1;
+
+ return gp;
+}
+
void
Perl_gv_init(pTHX_ GV *gv, HV *stash, const char *name, STRLEN len, int multi)
{
- register GP *gp;
- const bool doproto = SvTYPE(gv) > SVt_NULL;
- char *proto = (doproto && SvPOK(gv)) ? SvPVX(gv) : NULL;
+ dVAR;
+ const U32 old_type = SvTYPE(gv);
+ const bool doproto = old_type > SVt_NULL;
+ const char * const proto = (doproto && SvPOK(gv)) ? SvPVX_const(gv) : NULL;
+ SV *const has_constant = doproto && SvROK(gv) ? SvRV(gv) : NULL;
+
+ assert (!(proto && has_constant));
+
+ if (has_constant) {
+ /* The constant has to be a simple scalar type. */
+ switch (SvTYPE(has_constant)) {
+ case SVt_PVAV:
+ case SVt_PVHV:
+ case SVt_PVCV:
+ case SVt_PVFM:
+ case SVt_PVIO:
+ Perl_croak(aTHX_ "Cannot convert a reference to %s to typeglob",
+ sv_reftype(has_constant, 0));
+ }
+ SvRV_set(gv, NULL);
+ SvROK_off(gv);
+ }
- sv_upgrade((SV*)gv, SVt_PVGV);
+
+ if (old_type < SVt_PVGV) {
+ if (old_type >= SVt_PV)
+ SvCUR_set(gv, 0);
+ sv_upgrade((SV*)gv, SVt_PVGV);
+ }
if (SvLEN(gv)) {
if (proto) {
- SvPVX(gv) = NULL;
- SvLEN(gv) = 0;
+ SvPV_set(gv, NULL);
+ SvLEN_set(gv, 0);
SvPOK_off(gv);
} else
- Safefree(SvPVX(gv));
+ Safefree(SvPVX_mutable(gv));
}
- Newz(602, gp, 1, GP);
- GvGP(gv) = gp_ref(gp);
- GvSV(gv) = NEWSV(72,0);
- GvLINE(gv) = CopLINE(PL_curcop);
- /* XXX Ideally this cast would be replaced with a change to const char*
- in the struct. */
- GvFILE(gv) = CopFILE(PL_curcop) ? CopFILE(PL_curcop) : (char *) "";
- GvCVGEN(gv) = 0;
- GvEGV(gv) = gv;
- sv_magic((SV*)gv, (SV*)gv, PERL_MAGIC_glob, Nullch, 0);
- GvSTASH(gv) = (HV*)SvREFCNT_inc(stash);
- GvNAME(gv) = savepvn(name, len);
- GvNAMELEN(gv) = len;
+ SvSCREAM_on(gv);
+
+ GvGP(gv) = Perl_newGP(aTHX_ gv);
+ GvSTASH(gv) = stash;
+ if (stash)
+ Perl_sv_add_backref(aTHX_ (SV*)stash, (SV*)gv);
+ gv_name_set(gv, name, len, GV_ADD);
if (multi || doproto) /* doproto means it _was_ mentioned */
GvMULTI_on(gv);
if (doproto) { /* Replicate part of newSUB here. */
SvIOK_off(gv);
ENTER;
- /* XXX unsafe for threads if eval_owner isn't held */
- start_subparse(0,0); /* Create CV in compcv. */
- GvCV(gv) = PL_compcv;
+ if (has_constant) {
+ /* newCONSTSUB takes ownership of the reference from us. */
+ GvCV(gv) = newCONSTSUB(stash, name, has_constant);
+ } else {
+ /* XXX unsafe for threads if eval_owner isn't held */
+ (void) start_subparse(0,0); /* Create empty CV in compcv. */
+ GvCV(gv) = PL_compcv;
+ }
LEAVE;
PL_sub_generation++;
case SVt_PVHV:
(void)GvHVn(gv);
break;
+#ifdef PERL_DONT_CREATE_GVSV
+ case SVt_NULL:
+ case SVt_PVCV:
+ case SVt_PVFM:
+ case SVt_PVGV:
+ break;
+ default:
+ (void)GvSVn(gv);
+#endif
}
}
GV *
Perl_gv_fetchmeth(pTHX_ HV *stash, const char *name, STRLEN len, I32 level)
{
+ dVAR;
AV* av;
GV* topgv;
GV* gv;
GV** gvp;
CV* cv;
+ const char *hvname;
/* UNIVERSAL methods should be callable without a stash */
if (!stash) {
level = -1; /* probably appropriate */
- if(!(stash = gv_stashpvn("UNIVERSAL", 9, FALSE)))
+ if(!(stash = gv_stashpvs("UNIVERSAL", FALSE)))
return 0;
}
- if (!HvNAME(stash))
+ hvname = HvNAME_get(stash);
+ if (!hvname)
Perl_croak(aTHX_
"Can't use anonymous symbol table for method lookup");
if ((level > 100) || (level < -100))
Perl_croak(aTHX_ "Recursive inheritance detected while looking for method '%s' in package '%s'",
- name, HvNAME(stash));
+ name, hvname);
- DEBUG_o( Perl_deb(aTHX_ "Looking for method %s in package %s\n",name,HvNAME(stash)) );
+ DEBUG_o( Perl_deb(aTHX_ "Looking for method %s in package %s\n",name,hvname) );
gvp = (GV**)hv_fetch(stash, name, len, (level >= 0));
if (!gvp)
- topgv = Nullgv;
+ topgv = NULL;
else {
topgv = *gvp;
if (SvTYPE(topgv) != SVt_PVGV)
return topgv;
/* Stale cached entry: junk it */
SvREFCNT_dec(cv);
- GvCV(topgv) = cv = Nullcv;
+ GvCV(topgv) = cv = NULL;
GvCVGEN(topgv) = 0;
}
else if (GvCVGEN(topgv) == PL_sub_generation)
return 0; /* cache indicates sub doesn't exist */
}
- gvp = (GV**)hv_fetch(stash, "ISA", 3, FALSE);
- av = (gvp && (gv = *gvp) && gv != (GV*)&PL_sv_undef) ? GvAV(gv) : Nullav;
+ gvp = (GV**)hv_fetchs(stash, "ISA", FALSE);
+ av = (gvp && (gv = *gvp) && gv != (GV*)&PL_sv_undef) ? GvAV(gv) : NULL;
/* create and re-create @.*::SUPER::ISA on demand */
if (!av || !SvMAGIC(av)) {
- char* packname = HvNAME(stash);
- STRLEN packlen = strlen(packname);
+ STRLEN packlen = HvNAMELEN_get(stash);
- if (packlen >= 7 && strEQ(packname + packlen - 7, "::SUPER")) {
+ if (packlen >= 7 && strEQ(hvname + packlen - 7, "::SUPER")) {
HV* basestash;
packlen -= 7;
- basestash = gv_stashpvn(packname, packlen, TRUE);
- gvp = (GV**)hv_fetch(basestash, "ISA", 3, FALSE);
+ basestash = gv_stashpvn(hvname, packlen, TRUE);
+ gvp = (GV**)hv_fetchs(basestash, "ISA", FALSE);
if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (av = GvAV(gv))) {
- gvp = (GV**)hv_fetch(stash, "ISA", 3, TRUE);
+ gvp = (GV**)hv_fetchs(stash, "ISA", TRUE);
if (!gvp || !(gv = *gvp))
- Perl_croak(aTHX_ "Cannot create %s::ISA", HvNAME(stash));
+ Perl_croak(aTHX_ "Cannot create %s::ISA", hvname);
if (SvTYPE(gv) != SVt_PVGV)
gv_init(gv, stash, "ISA", 3, TRUE);
SvREFCNT_dec(GvAV(gv));
- GvAV(gv) = (AV*)SvREFCNT_inc(av);
+ GvAV(gv) = (AV*)SvREFCNT_inc_simple(av);
}
}
}
/* 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, FALSE);
if (!basestash) {
if (ckWARN(WARN_MISC))
Perl_warner(aTHX_ packWARN(WARN_MISC), "Can't locate package %"SVf" for @%s::ISA",
- sv, HvNAME(stash));
+ (void*)sv, hvname);
continue;
}
gv = gv_fetchmeth(basestash, name, len,
/* if at top level, try UNIVERSAL */
if (level == 0 || level == -1) {
- HV* lastchance;
+ HV* const lastchance = gv_stashpvs("UNIVERSAL", FALSE);
- if ((lastchance = gv_stashpvn("UNIVERSAL", 9, FALSE))) {
+ if (lastchance) {
if ((gv = gv_fetchmeth(lastchance, name, len,
(level >= 0) ? level + 1 : level - 1)))
{
GV *gv = gv_fetchmeth(stash, name, len, level);
if (!gv) {
- char autoload[] = "AUTOLOAD";
- STRLEN autolen = sizeof(autoload)-1;
CV *cv;
GV **gvp;
if (!stash)
- return Nullgv; /* UNIVERSAL::AUTOLOAD could cause trouble */
- if (len == autolen && strnEQ(name, autoload, autolen))
- return Nullgv;
- if (!(gv = gv_fetchmeth(stash, autoload, autolen, FALSE)))
- return Nullgv;
+ return NULL; /* UNIVERSAL::AUTOLOAD could cause trouble */
+ if (len == S_autolen && strnEQ(name, S_autoload, S_autolen))
+ return NULL;
+ if (!(gv = gv_fetchmeth(stash, S_autoload, S_autolen, FALSE)))
+ return NULL;
cv = GvCV(gv);
if (!(CvROOT(cv) || CvXSUB(cv)))
- return Nullgv;
+ return NULL;
/* Have an autoload */
if (level < 0) /* Cannot do without a stub */
gv_fetchmeth(stash, name, len, 0);
gvp = (GV**)hv_fetch(stash, name, len, (level >= 0));
if (!gvp)
- return Nullgv;
+ return NULL;
return *gvp;
}
return gv;
}
/*
-=for apidoc gv_fetchmethod
-
-See L<gv_fetchmethod_autoload>.
-
-=cut
-*/
-
-GV *
-Perl_gv_fetchmethod(pTHX_ HV *stash, const char *name)
-{
- return gv_fetchmethod_autoload(stash, name, TRUE);
-}
-
-/*
=for apidoc gv_fetchmethod_autoload
Returns the glob which contains the subroutine to call to invoke the method
GV *
Perl_gv_fetchmethod_autoload(pTHX_ HV *stash, const char *name, I32 autoload)
{
+ dVAR;
register const char *nend;
- const char *nsplit = 0;
+ const char *nsplit = NULL;
GV* gv;
HV* ostash = stash;
if (stash && SvTYPE(stash) < SVt_PVHV)
- stash = Nullhv;
+ stash = NULL;
for (nend = name; *nend; nend++) {
if (*nend == '\'')
nsplit = ++nend;
}
if (nsplit) {
- const char *origname = name;
+ const char * const origname = name;
name = nsplit + 1;
if (*nsplit == ':')
--nsplit;
if ((nsplit - origname) == 5 && strnEQ(origname, "SUPER", 5)) {
/* ->SUPER::method should really be looked up in original stash */
- SV *tmpstr = sv_2mortal(Perl_newSVpvf(aTHX_ "%s::SUPER",
+ SV * const tmpstr = sv_2mortal(Perl_newSVpvf(aTHX_ "%s::SUPER",
CopSTASHPV(PL_curcop)));
/* __PACKAGE__::SUPER stash should be autovivified */
- stash = gv_stashpvn(SvPVX(tmpstr), SvCUR(tmpstr), TRUE);
+ stash = gv_stashpvn(SvPVX_const(tmpstr), SvCUR(tmpstr), TRUE);
DEBUG_o( Perl_deb(aTHX_ "Treating %s as %s::%s\n",
- origname, HvNAME(stash), name) );
+ origname, HvNAME_get(stash), name) );
}
else {
/* don't autovifify if ->NoSuchStash::method */
gv = gv_autoload4(ostash, name, nend - name, TRUE);
}
else if (autoload) {
- CV* cv = GvCV(gv);
+ CV* const cv = GvCV(gv);
if (!CvROOT(cv) && !CvXSUB(cv)) {
GV* stubgv;
GV* autogv;
GV*
Perl_gv_autoload4(pTHX_ HV *stash, const char *name, STRLEN len, I32 method)
{
- char autoload[] = "AUTOLOAD";
- STRLEN autolen = sizeof(autoload)-1;
+ dVAR;
GV* gv;
CV* cv;
HV* varstash;
GV* vargv;
SV* varsv;
const char *packname = "";
+ STRLEN packname_len = 0;
- if (len == autolen && strnEQ(name, autoload, autolen))
- return Nullgv;
+ if (len == S_autolen && strnEQ(name, S_autoload, S_autolen))
+ return NULL;
if (stash) {
if (SvTYPE(stash) < SVt_PVHV) {
- packname = SvPV_nolen((SV*)stash);
- stash = Nullhv;
+ packname = SvPV_const((SV*)stash, packname_len);
+ stash = NULL;
}
else {
- packname = HvNAME(stash);
+ packname = HvNAME_get(stash);
+ packname_len = HvNAMELEN_get(stash);
}
}
- if (!(gv = gv_fetchmeth(stash, autoload, autolen, FALSE)))
- return Nullgv;
+ if (!(gv = gv_fetchmeth(stash, S_autoload, S_autolen, FALSE)))
+ return NULL;
cv = GvCV(gv);
if (!(CvROOT(cv) || CvXSUB(cv)))
- return Nullgv;
+ return NULL;
/*
* Inheriting AUTOLOAD for non-methods works ... for now.
*/
- if (ckWARN2(WARN_DEPRECATED, WARN_SYNTAX) && !method &&
- (GvCVGEN(gv) || GvSTASH(gv) != stash))
+ if (!method && (GvCVGEN(gv) || GvSTASH(gv) != stash)
+ && ckWARN2(WARN_DEPRECATED, WARN_SYNTAX)
+ )
Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX),
"Use of inherited AUTOLOAD for non-method %s::%.*s() is deprecated",
packname, (int)len, name);
- if (CvXSUB(cv)) {
+ if (CvISXSUB(cv)) {
/* rather than lookup/init $AUTOLOAD here
* only to have the XSUB do another lookup for $AUTOLOAD
* and split that value on the last '::',
* pass along the same data via some unused fields in the CV
*/
CvSTASH(cv) = stash;
- SvPVX(cv) = (char *)name; /* cast to lose constness warning */
- SvCUR(cv) = len;
+ SvPV_set(cv, (char *)name); /* cast to lose constness warning */
+ SvCUR_set(cv, len);
return gv;
}
* original package to look up $AUTOLOAD.
*/
varstash = GvSTASH(CvGV(cv));
- vargv = *(GV**)hv_fetch(varstash, autoload, autolen, TRUE);
+ vargv = *(GV**)hv_fetch(varstash, S_autoload, S_autolen, TRUE);
ENTER;
- if (!isGV(vargv))
- gv_init(vargv, varstash, autoload, autolen, FALSE);
+ if (!isGV(vargv)) {
+ gv_init(vargv, varstash, S_autoload, S_autolen, FALSE);
+#ifdef PERL_DONT_CREATE_GVSV
+ GvSV(vargv) = newSV(0);
+#endif
+ }
LEAVE;
- varsv = GvSV(vargv);
- sv_setpv(varsv, packname);
- sv_catpvn(varsv, "::", 2);
+ varsv = GvSVn(vargv);
+ sv_setpvn(varsv, packname, packname_len);
+ sv_catpvs(varsv, "::");
sv_catpvn(varsv, name, len);
SvTAINTED_off(varsv);
return gv;
STATIC void
S_require_errno(pTHX_ GV *gv)
{
- HV* stash = gv_stashpvn("Errno",5,FALSE);
+ dVAR;
+ HV* stash = gv_stashpvs("Errno", FALSE);
- if (!stash || !(gv_fetchmethod(stash, "TIEHASH"))) {
+ if (!stash || !(gv_fetchmethod(stash, "TIEHASH"))) {
dSP;
PUTBACK;
ENTER;
save_scalar(gv); /* keep the value of $! */
Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT,
- newSVpvn("Errno",5), Nullsv);
+ newSVpvs("Errno"), NULL);
LEAVE;
SPAGAIN;
- stash = gv_stashpvn("Errno",5,FALSE);
+ stash = gv_stashpvs("Errno", FALSE);
if (!stash || !(gv_fetchmethod(stash, "TIEHASH")))
Perl_croak(aTHX_ "Can't use %%! because Errno.pm is not available");
}
HV*
Perl_gv_stashpvn(pTHX_ const char *name, U32 namelen, I32 create)
{
- char smallbuf[256];
+ char smallbuf[128];
char *tmpbuf;
HV *stash;
GV *tmpgv;
if (namelen + 3 < sizeof smallbuf)
tmpbuf = smallbuf;
else
- New(606, tmpbuf, namelen + 3, char);
+ Newx(tmpbuf, namelen + 3, char);
Copy(name,tmpbuf,namelen,char);
tmpbuf[namelen++] = ':';
tmpbuf[namelen++] = ':';
tmpbuf[namelen] = '\0';
- tmpgv = gv_fetchpv(tmpbuf, create, SVt_PVHV);
+ tmpgv = gv_fetchpvn_flags(tmpbuf, namelen, create, SVt_PVHV);
if (tmpbuf != smallbuf)
Safefree(tmpbuf);
if (!tmpgv)
if (!GvHV(tmpgv))
GvHV(tmpgv) = newHV();
stash = GvHV(tmpgv);
- if (!HvNAME(stash))
- HvNAME(stash) = savepv(name);
+ if (!HvNAME_get(stash))
+ hv_name_set(stash, name, namelen, 0);
return stash;
}
HV*
Perl_gv_stashsv(pTHX_ SV *sv, I32 create)
{
- register char *ptr;
STRLEN len;
- ptr = SvPV(sv,len);
+ const char * const ptr = SvPV_const(sv,len);
return gv_stashpvn(ptr, len, create);
}
GV *
Perl_gv_fetchpv(pTHX_ const char *nambeg, I32 add, I32 sv_type) {
- STRLEN len = strlen (nambeg);
- return gv_fetchpvn_flags(nambeg, len, add, sv_type);
+ return gv_fetchpvn_flags(nambeg, strlen(nambeg), add, sv_type);
}
GV *
Perl_gv_fetchsv(pTHX_ SV *name, I32 flags, I32 sv_type) {
STRLEN len;
- const char *nambeg = SvPV(name, len);
+ const char * const nambeg = SvPV_const(name, len);
return gv_fetchpvn_flags(nambeg, len, flags | SvUTF8(name), sv_type);
}
Perl_gv_fetchpvn_flags(pTHX_ const char *nambeg, STRLEN full_len, I32 flags,
I32 sv_type)
{
+ dVAR;
register const char *name = nambeg;
- register GV *gv = 0;
+ register GV *gv = NULL;
GV**gvp;
I32 len;
- register const char *namend;
- HV *stash = 0;
- const I32 add = flags & ~SVf_UTF8;
- (void)full_len;
+ register const char *name_cursor;
+ HV *stash = NULL;
+ const I32 no_init = flags & (GV_NOADD_NOINIT | GV_NOINIT);
+ const I32 no_expand = flags & GV_NOEXPAND;
+ const I32 add =
+ flags & ~SVf_UTF8 & ~GV_NOADD_NOINIT & ~GV_NOEXPAND & ~GV_NOTQUAL;
+ const char *const name_end = nambeg + full_len;
+ const char *const name_em1 = name_end - 1;
+
+ if (flags & GV_NOTQUAL) {
+ /* Caller promised that there is no stash, so we can skip the check. */
+ len = full_len;
+ goto no_stash;
+ }
- if (*name == '*' && isALPHA(name[1])) /* accidental stringify on a GV? */
+ if (full_len > 2 && *name == '*' && isALPHA(name[1])) {
+ /* accidental stringify on a GV? */
name++;
+ }
- for (namend = name; *namend; namend++) {
- if ((*namend == ':' && namend[1] == ':')
- || (*namend == '\'' && namend[1]))
+ for (name_cursor = name; name_cursor < name_end; name_cursor++) {
+ if ((*name_cursor == ':' && name_cursor < name_em1
+ && name_cursor[1] == ':')
+ || (*name_cursor == '\'' && name_cursor[1]))
{
if (!stash)
stash = PL_defstash;
if (!stash || !SvREFCNT(stash)) /* symbol table under destruction */
- return Nullgv;
+ return NULL;
- len = namend - name;
+ len = name_cursor - name;
if (len > 0) {
- char smallbuf[256];
+ char smallbuf[128];
char *tmpbuf;
- if (len + 3 < sizeof (smallbuf))
+ if (len + 3 < (I32)sizeof (smallbuf))
tmpbuf = smallbuf;
else
- New(601, tmpbuf, len+3, char);
+ Newx(tmpbuf, len+3, char);
Copy(name, tmpbuf, len, char);
tmpbuf[len++] = ':';
tmpbuf[len++] = ':';
tmpbuf[len] = '\0';
gvp = (GV**)hv_fetch(stash,tmpbuf,len,add);
- gv = gvp ? *gvp : Nullgv;
+ gv = gvp ? *gvp : NULL;
if (gv && gv != (GV*)&PL_sv_undef) {
if (SvTYPE(gv) != SVt_PVGV)
gv_init(gv, stash, tmpbuf, len, (add & GV_ADDMULTI));
if (tmpbuf != smallbuf)
Safefree(tmpbuf);
if (!gv || gv == (GV*)&PL_sv_undef)
- return Nullgv;
+ return NULL;
if (!(stash = GvHV(gv)))
stash = GvHV(gv) = newHV();
- if (!HvNAME(stash))
- HvNAME(stash) = savepvn(nambeg, namend - nambeg);
+ if (!HvNAME_get(stash))
+ hv_name_set(stash, nambeg, name_cursor - nambeg, 0);
}
- if (*namend == ':')
- namend++;
- namend++;
- name = namend;
- if (!*name)
- return gv ? gv : (GV*)*hv_fetch(PL_defstash, "main::", 6, TRUE);
+ if (*name_cursor == ':')
+ name_cursor++;
+ name_cursor++;
+ name = name_cursor;
+ if (name == name_end)
+ return gv ? gv : (GV*)*hv_fetchs(PL_defstash, "main::", TRUE);
}
}
- len = namend - name;
+ len = name_cursor - name;
/* No stash in name, so see how we can default */
if (!stash) {
- if (isIDFIRST_lazy(name)) {
+ no_stash:
+ if (len && isIDFIRST_lazy(name)) {
bool global = FALSE;
- /* name is always \0 terminated, and initial \0 wouldn't return
- true from isIDFIRST_lazy, so we know that name[1] is defined */
- switch (name[1]) {
- case '\0':
+ switch (len) {
+ case 1:
if (*name == '_')
global = TRUE;
break;
- case 'N':
- if (strEQ(name, "INC") || strEQ(name, "ENV"))
+ case 3:
+ if ((name[0] == 'I' && name[1] == 'N' && name[2] == 'C')
+ || (name[0] == 'E' && name[1] == 'N' && name[2] == 'V')
+ || (name[0] == 'S' && name[1] == 'I' && name[2] == 'G'))
global = TRUE;
break;
- case 'I':
- if (strEQ(name, "SIG"))
+ case 4:
+ if (name[0] == 'A' && name[1] == 'R' && name[2] == 'G'
+ && name[3] == 'V')
global = TRUE;
break;
- case 'T':
- if (strEQ(name, "STDIN") || strEQ(name, "STDOUT") ||
- strEQ(name, "STDERR"))
+ case 5:
+ if (name[0] == 'S' && name[1] == 'T' && name[2] == 'D'
+ && name[3] == 'I' && name[4] == 'N')
global = TRUE;
break;
- case 'R':
- if (strEQ(name, "ARGV") || strEQ(name, "ARGVOUT"))
+ case 6:
+ if ((name[0] == 'S' && name[1] == 'T' && name[2] == 'D')
+ &&((name[3] == 'O' && name[4] == 'U' && name[5] == 'T')
+ ||(name[3] == 'E' && name[4] == 'R' && name[5] == 'R')))
+ global = TRUE;
+ break;
+ case 7:
+ if (name[0] == 'A' && name[1] == 'R' && name[2] == 'G'
+ && name[3] == 'V' && name[4] == 'O' && name[5] == 'U'
+ && name[6] == 'T')
global = TRUE;
break;
}
*gvp == (GV*)&PL_sv_undef ||
SvTYPE(*gvp) != SVt_PVGV)
{
- stash = 0;
+ stash = NULL;
}
else if ((sv_type == SVt_PV && !GvIMPORTED_SV(*gvp)) ||
(sv_type == SVt_PVAV && !GvIMPORTED_AV(*gvp)) ||
name);
if (GvCVu(*gvp))
Perl_warn(aTHX_ "\t(Did you mean &%s instead?)\n", name);
- stash = 0;
+ stash = NULL;
}
}
}
if (!stash) {
if (add) {
- register SV *err = Perl_mess(aTHX_
+ SV * const err = Perl_mess(aTHX_
"Global symbol \"%s%s\" requires explicit package name",
(sv_type == SVt_PV ? "$"
: sv_type == SVt_PVAV ? "@"
if (USE_UTF8_IN_NAMES)
SvUTF8_on(err);
qerror(err);
- stash = GvHV(gv_fetchpv("<none>::", GV_ADDMULTI, SVt_PVHV));
+ stash = GvHV(gv_fetchpvn_flags("<none>::", 8, GV_ADDMULTI, SVt_PVHV));
}
else
- return Nullgv;
+ return NULL;
}
if (!SvREFCNT(stash)) /* symbol table under destruction */
- return Nullgv;
+ return NULL;
gvp = (GV**)hv_fetch(stash,name,len,add);
if (!gvp || *gvp == (GV*)&PL_sv_undef)
- return Nullgv;
+ return NULL;
gv = *gvp;
if (SvTYPE(gv) == SVt_PVGV) {
if (add) {
require_errno(gv);
}
return gv;
- } else if (add & GV_NOINIT) {
+ } else if (no_init) {
+ return gv;
+ } else if (no_expand && SvROK(gv)) {
return gv;
}
gv_init(gv, stash, name, len, add & GV_ADDMULTI);
gv_init_sv(gv, sv_type);
- if (isALPHA(name[0]) && ! (isLEXWARN_on ? ckWARN(WARN_ONCE)
+ if (isALPHA(name[0]) && ! (isLEXWARN_on ? ckWARN(WARN_ONCE)
: (PL_dowarn & G_WARN_ON ) ) )
GvMULTI_on(gv) ;
if (len > 1) {
#ifndef EBCDIC
if (*name > 'V' ) {
+ NOOP;
/* Nothing else to do.
The compiler will probably turn the switch statement into a
branch table. Make sure we avoid even that small overhead for
} else
#endif
{
- const char *name2 = name + 1;
+ const char * const name2 = name + 1;
switch (*name) {
case 'A':
if (strEQ(name2, "RGV")) {
break;
case 'I':
if (strEQ(name2, "SA")) {
- AV* av = GvAVn(gv);
+ AV* const av = GvAVn(gv);
GvMULTI_on(gv);
- sv_magic((SV*)av, (SV*)gv, PERL_MAGIC_isa, Nullch, 0);
+ sv_magic((SV*)av, (SV*)gv, PERL_MAGIC_isa, NULL, 0);
/* NOTE: No support for tied ISA */
if ((add & GV_ADDMULTI) && strEQ(nambeg,"AnyDBM_File::ISA")
&& AvFILLp(av) == -1)
break;
case 'O':
if (strEQ(name2, "VERLOAD")) {
- HV* hv = GvHVn(gv);
+ HV* const hv = GvHVn(gv);
GvMULTI_on(gv);
- hv_magic(hv, Nullgv, PERL_MAGIC_overload);
+ hv_magic(hv, NULL, PERL_MAGIC_overload);
}
break;
case 'S':
HV *hv;
I32 i;
if (!PL_psig_ptr) {
- Newz(73, PL_psig_ptr, SIG_SIZE, SV*);
- Newz(73, PL_psig_name, SIG_SIZE, SV*);
- Newz(73, PL_psig_pend, SIG_SIZE, int);
+ Newxz(PL_psig_ptr, SIG_SIZE, SV*);
+ Newxz(PL_psig_name, SIG_SIZE, SV*);
+ Newxz(PL_psig_pend, SIG_SIZE, int);
}
GvMULTI_on(gv);
hv = GvHVn(gv);
- hv_magic(hv, Nullgv, PERL_MAGIC_sig);
+ hv_magic(hv, NULL, PERL_MAGIC_sig);
for (i = 1; i < SIG_SIZE; i++) {
- SV ** init;
- init = hv_fetch(hv, PL_sig_name[i], strlen(PL_sig_name[i]), 1);
+ SV * const * const init = hv_fetch(hv, PL_sig_name[i], strlen(PL_sig_name[i]), 1);
if (init)
sv_setsv(*init, &PL_sv_undef);
PL_psig_ptr[i] = 0;
if (strEQ(name2, "ERSION"))
GvMULTI_on(gv);
break;
+ case '\003': /* $^CHILD_ERROR_NATIVE */
+ if (strEQ(name2, "HILD_ERROR_NATIVE"))
+ goto magicalize;
+ break;
case '\005': /* $^ENCODING */
if (strEQ(name2, "NCODING"))
goto magicalize;
goto ro_magicalize;
break;
case '\025': /* ${^UNICODE}, ${^UTF8LOCALE} */
- if (strEQ(name2, "NICODE"))
+ if (strEQ(name2, "NICODE"))
goto ro_magicalize;
- if (strEQ(name2, "TF8LOCALE"))
+ if (strEQ(name2, "TF8LOCALE"))
goto ro_magicalize;
+ if (strEQ(name2, "TF8CACHE"))
+ goto magicalize;
break;
case '\027': /* $^WARNING_BITS */
if (strEQ(name2, "ARNING_BITS"))
goto ro_magicalize;
case ':':
- sv_setpv(GvSV(gv),PL_chopset);
+ sv_setpv(GvSVn(gv),PL_chopset);
goto magicalize;
case '?':
#ifdef COMPLEX_STATUS
- (void)SvUPGRADE(GvSV(gv), SVt_PVLV);
+ SvUPGRADE(GvSVn(gv), SVt_PVLV);
#endif
goto magicalize;
now (rather than going to magicalize)
*/
- sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, len);
+ sv_magic(GvSVn(gv), (SV*)gv, PERL_MAGIC_sv, name, len);
if (sv_type == SVt_PVHV)
require_errno(gv);
break;
case '-':
{
- AV* av = GvAVn(gv);
- sv_magic((SV*)av, Nullsv, PERL_MAGIC_regdata, Nullch, 0);
+ AV* const av = GvAVn(gv);
+ sv_magic((SV*)av, NULL, PERL_MAGIC_regdata, NULL, 0);
SvREADONLY_on(av);
goto magicalize;
}
case '*':
- if (sv_type == SVt_PV && ckWARN2(WARN_DEPRECATED, WARN_SYNTAX))
- Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX),
- "$* is no longer supported");
- break;
case '#':
if (sv_type == SVt_PV && ckWARN2(WARN_DEPRECATED, WARN_SYNTAX))
Perl_warner(aTHX_ packWARN2(WARN_DEPRECATED, WARN_SYNTAX),
- "Use of $# is deprecated");
- goto magicalize;
+ "$%c is no longer supported", *name);
+ break;
case '|':
- sv_setiv(GvSV(gv), (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0);
+ sv_setiv(GvSVn(gv), (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0);
+ goto magicalize;
+
+ case '\010': /* $^H */
+ {
+ HV *const hv = GvHVn(gv);
+ hv_magic(hv, NULL, PERL_MAGIC_hints);
+ }
goto magicalize;
case '+':
{
- AV* av = GvAVn(gv);
- sv_magic((SV*)av, (SV*)av, PERL_MAGIC_regdata, Nullch, 0);
+ AV* const av = GvAVn(gv);
+ sv_magic((SV*)av, (SV*)av, PERL_MAGIC_regdata, NULL, 0);
SvREADONLY_on(av);
/* FALL THROUGH */
}
case '8':
case '9':
ro_magicalize:
- SvREADONLY_on(GvSV(gv));
+ SvREADONLY_on(GvSVn(gv));
/* FALL THROUGH */
case '[':
case '^':
case '\004': /* $^D */
case '\005': /* $^E */
case '\006': /* $^F */
- case '\010': /* $^H */
case '\011': /* $^I, NOT \t in EBCDIC */
case '\016': /* $^N */
case '\017': /* $^O */
case '\024': /* $^T */
case '\027': /* $^W */
magicalize:
- sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, len);
+ sv_magic(GvSVn(gv), (SV*)gv, PERL_MAGIC_sv, name, len);
break;
case '\014': /* $^L */
- sv_setpv(GvSV(gv),"\f");
- PL_formfeed = GvSV(gv);
+ sv_setpvn(GvSVn(gv),"\f",1);
+ PL_formfeed = GvSVn(gv);
break;
case ';':
- sv_setpv(GvSV(gv),"\034");
+ sv_setpvn(GvSVn(gv),"\034",1);
break;
case ']':
{
- SV *sv = GvSV(gv);
+ SV * const sv = GvSVn(gv);
if (!sv_derived_from(PL_patchlevel, "version"))
- (void *)upg_version(PL_patchlevel);
+ upg_version(PL_patchlevel);
GvSV(gv) = vnumify(PL_patchlevel);
SvREADONLY_on(GvSV(gv));
SvREFCNT_dec(sv);
break;
case '\026': /* $^V */
{
- SV * const sv = GvSV(gv);
+ SV * const sv = GvSVn(gv);
GvSV(gv) = new_version(PL_patchlevel);
SvREADONLY_on(GvSV(gv));
SvREFCNT_dec(sv);
Perl_gv_fullname4(pTHX_ SV *sv, const GV *gv, const char *prefix, bool keepmain)
{
const char *name;
+ STRLEN namelen;
const HV * const hv = GvSTASH(gv);
if (!hv) {
SvOK_off(sv);
return;
}
sv_setpv(sv, prefix ? prefix : "");
-
- name = HvNAME(hv);
- if (!name)
+
+ name = HvNAME_get(hv);
+ if (name) {
+ namelen = HvNAMELEN_get(hv);
+ } else {
name = "__ANON__";
-
+ namelen = 8;
+ }
+
if (keepmain || strNE(name, "main")) {
- sv_catpv(sv,name);
- sv_catpvn(sv,"::", 2);
+ sv_catpvn(sv,name,namelen);
+ sv_catpvs(sv,"::");
}
sv_catpvn(sv,GvNAME(gv),GvNAMELEN(gv));
}
void
-Perl_gv_fullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
-{
- gv_fullname4(sv, gv, prefix, TRUE);
-}
-
-void
Perl_gv_efullname4(pTHX_ SV *sv, const GV *gv, const char *prefix, bool keepmain)
{
- const GV *egv = GvEGV(gv);
- if (!egv)
- egv = gv;
- gv_fullname4(sv, egv, prefix, keepmain);
-}
-
-void
-Perl_gv_efullname3(pTHX_ SV *sv, const GV *gv, const char *prefix)
-{
- gv_efullname4(sv, gv, prefix, TRUE);
-}
-
-/* compatibility with versions <= 5.003. */
-void
-Perl_gv_fullname(pTHX_ SV *sv, const GV *gv)
-{
- gv_fullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
-}
-
-/* compatibility with versions <= 5.003. */
-void
-Perl_gv_efullname(pTHX_ SV *sv, const GV *gv)
-{
- gv_efullname3(sv, gv, sv == (const SV*)gv ? "*" : "");
+ const GV * const egv = GvEGV(gv);
+ gv_fullname4(sv, egv ? egv : gv, prefix, keepmain);
}
IO *
Perl_newIO(pTHX)
{
- IO *io;
+ dVAR;
GV *iogv;
+ IO * const io = (IO*)newSV(0);
- io = (IO*)NEWSV(0,0);
sv_upgrade((SV *)io,SVt_PVIO);
- SvREFCNT(io) = 1;
+ /* This used to read SvREFCNT(io) = 1;
+ It's not clear why the reference count needed an explicit reset. NWC
+ */
+ assert (SvREFCNT(io) == 1);
SvOBJECT_on(io);
- /* Clear the stashcache because a new IO could overrule a
- package name */
+ /* Clear the stashcache because a new IO could overrule a package name */
hv_clear(PL_stashcache);
- iogv = gv_fetchpv("FileHandle::", FALSE, SVt_PVHV);
+ iogv = gv_fetchpvs("FileHandle::", 0, SVt_PVHV);
/* unless exists($main::{FileHandle}) and defined(%main::FileHandle::) */
if (!(iogv && GvHV(iogv) && HvARRAY(GvHV(iogv))))
- iogv = gv_fetchpv("IO::Handle::", TRUE, SVt_PVHV);
- SvSTASH(io) = (HV*)SvREFCNT_inc(GvHV(iogv));
+ iogv = gv_fetchpvs("IO::Handle::", GV_ADD, SVt_PVHV);
+ SvSTASH_set(io, (HV*)SvREFCNT_inc(GvHV(iogv)));
return io;
}
void
Perl_gv_check(pTHX_ HV *stash)
{
+ dVAR;
register I32 i;
- register GV *gv;
- HV *hv;
if (!HvARRAY(stash))
return;
for (i = 0; i <= (I32) HvMAX(stash); i++) {
const HE *entry;
for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) {
+ register GV *gv;
+ HV *hv;
if (HeKEY(entry)[HeKLEN(entry)-1] == ':' &&
(gv = (GV*)HeVAL(entry)) && isGV(gv) && (hv = GvHV(gv)))
{
file = GvFILE(gv);
/* performance hack: if filename is absolute and it's a standard
* module, don't bother warning */
- if (file
- && PERL_FILE_IS_ABSOLUTE(file)
#ifdef MACOS_TRADITIONAL
- && (instr(file, ":lib:")
+# define LIB_COMPONENT ":lib:"
#else
- && (instr(file, "/lib/")
+# define LIB_COMPONENT "/lib/"
#endif
- || instr(file, ".pm")))
+ if (file
+ && PERL_FILE_IS_ABSOLUTE(file)
+ && (instr(file, LIB_COMPONENT) || instr(file, ".pm")))
{
continue;
}
#endif
Perl_warner(aTHX_ packWARN(WARN_ONCE),
"Name \"%s::%s\" used only once: possible typo",
- HvNAME(stash), GvNAME(gv));
+ HvNAME_get(stash), GvNAME(gv));
}
}
}
GV *
Perl_newGVgen(pTHX_ const char *pack)
{
+ dVAR;
return gv_fetchpv(Perl_form(aTHX_ "%s::_GEN_%ld", pack, (long)PL_gensym++),
- TRUE, SVt_PVGV);
+ GV_ADD, SVt_PVGV);
}
/* hopefully this is only called on local symbol table entries */
GP*
Perl_gp_ref(pTHX_ GP *gp)
{
+ dVAR;
if (!gp)
- return (GP*)NULL;
+ return NULL;
gp->gp_refcnt++;
if (gp->gp_cv) {
if (gp->gp_cvgen) {
/* multi-named GPs cannot be used for method cache */
SvREFCNT_dec(gp->gp_cv);
- gp->gp_cv = Nullcv;
+ gp->gp_cv = NULL;
gp->gp_cvgen = 0;
}
else {
void
Perl_gp_free(pTHX_ GV *gv)
{
+ dVAR;
GP* gp;
- if (!gv || !(gp = GvGP(gv)))
+ if (!gv || !isGV_with_GP(gv) || !(gp = GvGP(gv)))
return;
if (gp->gp_refcnt == 0) {
if (ckWARN_d(WARN_INTERNAL))
if (--gp->gp_refcnt > 0) {
if (gp->gp_egv == gv)
gp->gp_egv = 0;
+ GvGP(gv) = 0;
return;
}
- if (gp->gp_sv) SvREFCNT_dec(gp->gp_sv);
- if (gp->gp_av) SvREFCNT_dec(gp->gp_av);
- if (gp->gp_hv) {
- if (PL_stashcache && HvNAME(gp->gp_hv))
- hv_delete(PL_stashcache,
- HvNAME(gp->gp_hv), strlen(HvNAME(gp->gp_hv)),
- G_DISCARD);
- SvREFCNT_dec(gp->gp_hv);
+ unshare_hek(gp->gp_file_hek);
+ SvREFCNT_dec(gp->gp_sv);
+ SvREFCNT_dec(gp->gp_av);
+ /* FIXME - another reference loop GV -> symtab -> GV ?
+ Somehow gp->gp_hv can end up pointing at freed garbage. */
+ if (gp->gp_hv && SvTYPE(gp->gp_hv) == SVt_PVHV) {
+ const char *hvname = HvNAME_get(gp->gp_hv);
+ if (PL_stashcache && hvname)
+ hv_delete(PL_stashcache, hvname, HvNAMELEN_get(gp->gp_hv),
+ G_DISCARD);
+ SvREFCNT_dec(gp->gp_hv);
}
- if (gp->gp_io) SvREFCNT_dec(gp->gp_io);
- if (gp->gp_cv) SvREFCNT_dec(gp->gp_cv);
- if (gp->gp_form) SvREFCNT_dec(gp->gp_form);
+ SvREFCNT_dec(gp->gp_io);
+ SvREFCNT_dec(gp->gp_cv);
+ SvREFCNT_dec(gp->gp_form);
Safefree(gp);
GvGP(gv) = 0;
int
Perl_magic_freeovrld(pTHX_ SV *sv, MAGIC *mg)
{
- AMT *amtp = (AMT*)mg->mg_ptr;
- (void)sv;
+ AMT * const amtp = (AMT*)mg->mg_ptr;
+ PERL_UNUSED_ARG(sv);
if (amtp && AMT_AMAGIC(amtp)) {
int i;
for (i = 1; i < NofAMmeth; i++) {
- CV *cv = amtp->table[i];
- if (cv != Nullcv) {
+ CV * const cv = amtp->table[i];
+ if (cv) {
SvREFCNT_dec((SV *) cv);
- amtp->table[i] = Nullcv;
+ amtp->table[i] = NULL;
}
}
}
bool
Perl_Gv_AMupdate(pTHX_ HV *stash)
{
- GV* gv;
- CV* cv;
- MAGIC* mg=mg_find((SV*)stash, PERL_MAGIC_overload_table);
- AMT *amtp = (mg) ? (AMT*)mg->mg_ptr: (AMT *) NULL;
+ dVAR;
+ MAGIC* const mg = mg_find((SV*)stash, PERL_MAGIC_overload_table);
+ AMT * const amtp = (mg) ? (AMT*)mg->mg_ptr: (AMT *) NULL;
AMT amt;
if (mg && amtp->was_ok_am == PL_amagic_generation
return (bool)AMT_OVERLOADED(amtp);
sv_unmagic((SV*)stash, PERL_MAGIC_overload_table);
- DEBUG_o( Perl_deb(aTHX_ "Recalcing overload magic in package %s\n",HvNAME(stash)) );
+ DEBUG_o( Perl_deb(aTHX_ "Recalcing overload magic in package %s\n",HvNAME_get(stash)) );
Zero(&amt,1,AMT);
amt.was_ok_am = PL_amagic_generation;
{
int filled = 0, have_ovl = 0;
int i, lim = 1;
- SV* sv = NULL;
/* Work with "fallback" key, which we assume to be first in PL_AMG_names */
/* Try to find via inheritance. */
- gv = gv_fetchmeth(stash, PL_AMG_names[0], 2, -1);
- if (gv)
- sv = GvSV(gv);
+ GV *gv = gv_fetchmeth(stash, PL_AMG_names[0], 2, -1);
+ SV * const sv = gv ? GvSV(gv) : NULL;
+ CV* cv;
if (!gv)
lim = DESTROY_amg; /* Skip overloading entries. */
+#ifdef PERL_DONT_CREATE_GVSV
+ else if (!sv) {
+ NOOP; /* Equivalent to !SvTRUE and !SvOK */
+ }
+#endif
else if (SvTRUE(sv))
amt.fallback=AMGfallYES;
else if (SvOK(sv))
amt.fallback=AMGfallNEVER;
for (i = 1; i < lim; i++)
- amt.table[i] = Nullcv;
+ amt.table[i] = NULL;
for (; i < NofAMmeth; i++) {
- const char *cooky = PL_AMG_names[i];
+ const char * const cooky = PL_AMG_names[i];
/* Human-readable form, for debugging: */
- const char *cp = (i >= DESTROY_amg ? cooky : AMG_id2name(i));
+ const char * const cp = (i >= DESTROY_amg ? cooky : AMG_id2name(i));
const STRLEN l = strlen(cooky);
- DEBUG_o( Perl_deb(aTHX_ "Checking overloading of `%s' in package `%.256s'\n",
- cp, HvNAME(stash)) );
+ DEBUG_o( Perl_deb(aTHX_ "Checking overloading of \"%s\" in package \"%.256s\"\n",
+ cp, HvNAME_get(stash)) );
/* don't fill the cache while looking up!
Creation of inheritance stubs in intermediate packages may
conflict with the logic of runtime method substitution.
gv = Perl_gv_fetchmeth(aTHX_ stash, cooky, l, -1);
cv = 0;
if (gv && (cv = GvCV(gv))) {
+ const char *hvname;
if (GvNAMELEN(CvGV(cv)) == 3 && strEQ(GvNAME(CvGV(cv)), "nil")
- && strEQ(HvNAME(GvSTASH(CvGV(cv))), "overload")) {
+ && strEQ(hvname = HvNAME_get(GvSTASH(CvGV(cv))), "overload")) {
/* This is a hack to support autoloading..., while
knowing *which* methods were declared as overloaded. */
/* GvSV contains the name of the method. */
- GV *ngv = Nullgv;
-
- DEBUG_o( Perl_deb(aTHX_ "Resolving method `%"SVf256\
- "' for overloaded `%s' in package `%.256s'\n",
- GvSV(gv), cp, HvNAME(stash)) );
- if (!SvPOK(GvSV(gv))
- || !(ngv = gv_fetchmethod_autoload(stash, SvPVX(GvSV(gv)),
+ GV *ngv = NULL;
+ SV *gvsv = GvSV(gv);
+
+ DEBUG_o( Perl_deb(aTHX_ "Resolving method \"%"SVf256\
+ "\" for overloaded \"%s\" in package \"%.256s\"\n",
+ (void*)GvSV(gv), cp, hvname) );
+ if (!gvsv || !SvPOK(gvsv)
+ || !(ngv = gv_fetchmethod_autoload(stash, SvPVX_const(gvsv),
FALSE)))
{
- /* Can be an import stub (created by `can'). */
- SV *gvsv = GvSV(gv);
- const char *name = SvPOK(gvsv) ? SvPVX(gvsv) : "???";
- Perl_croak(aTHX_ "%s method `%.256s' overloading `%s' "\
- "in package `%.256s'",
+ /* Can be an import stub (created by "can"). */
+ const char * const name = (gvsv && SvPOK(gvsv)) ? SvPVX_const(gvsv) : "???";
+ Perl_croak(aTHX_ "%s method \"%.256s\" overloading \"%s\" "\
+ "in package \"%.256s\"",
(GvCVGEN(gv) ? "Stub found while resolving"
: "Can't resolve"),
- name, cp, HvNAME(stash));
+ name, cp, hvname);
}
cv = GvCV(gv = ngv);
}
- DEBUG_o( Perl_deb(aTHX_ "Overloading `%s' in package `%.256s' via `%.256s::%.256s' \n",
- cp, HvNAME(stash), HvNAME(GvSTASH(CvGV(cv))),
+ DEBUG_o( Perl_deb(aTHX_ "Overloading \"%s\" in package \"%.256s\" via \"%.256s::%.256s\"\n",
+ cp, HvNAME_get(stash), HvNAME_get(GvSTASH(CvGV(cv))),
GvNAME(CvGV(cv))) );
filled = 1;
if (i < DESTROY_amg)
cv = (CV*)gv;
filled = 1;
}
- amt.table[i]=(CV*)SvREFCNT_inc(cv);
+ amt.table[i]=(CV*)SvREFCNT_inc_simple(cv);
}
if (filled) {
AMT_AMAGIC_on(&amt);
CV*
Perl_gv_handler(pTHX_ HV *stash, I32 id)
{
+ dVAR;
MAGIC *mg;
AMT *amtp;
- CV *ret;
- if (!stash || !HvNAME(stash))
- return Nullcv;
+ if (!stash || !HvNAME_get(stash))
+ return NULL;
mg = mg_find((SV*)stash, PERL_MAGIC_overload_table);
if (!mg) {
do_update:
|| amtp->was_ok_sub != PL_sub_generation )
goto do_update;
if (AMT_AMAGIC(amtp)) {
- ret = amtp->table[id];
+ CV * const ret = amtp->table[id];
if (ret && isGV(ret)) { /* Autoloading stab */
/* Passing it through may have resulted in a warning
"Inherited AUTOLOAD for a non-method deprecated", since
our caller is going through a function call, not a method call.
So return the CV for AUTOLOAD, setting $AUTOLOAD. */
- GV *gv = gv_fetchmethod(stash, PL_AMG_names[id]);
+ GV * const gv = gv_fetchmethod(stash, PL_AMG_names[id]);
if (gv && GvCV(gv))
return GvCV(gv);
}
return ret;
}
-
- return Nullcv;
+
+ return NULL;
}
SV*
Perl_amagic_call(pTHX_ SV *left, SV *right, int method, int flags)
{
+ dVAR;
MAGIC *mg;
CV *cv=NULL;
CV **cvp=NULL, **ocvp=NULL;
AMT *amtp=NULL, *oamtp=NULL;
- int off=0, off1, lr=0, assign=AMGf_assign & flags, notfound=0;
- int postpr = 0, force_cpy = 0, assignshift = assign ? 1 : 0;
+ int off = 0, off1, lr = 0, notfound = 0;
+ int postpr = 0, force_cpy = 0;
+ int assign = AMGf_assign & flags;
+ const int assignshift = assign ? 1 : 0;
#ifdef DEBUGGING
int fl=0;
#endif
&& (mg = mg_find((SV*)stash, PERL_MAGIC_overload_table))
&& (ocvp = cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr)
? (oamtp = amtp = (AMT*)mg->mg_ptr)->table
- : (CV **) NULL))
+ : NULL))
&& ((cv = cvp[off=method+assignshift])
|| (assign && amtp->fallback > AMGfallNEVER && /* fallback to
* usual method */
(
#ifdef DEBUGGING
fl = 1,
-#endif
+#endif
cv = cvp[off=method])))) {
lr = -1; /* Call method for left argument */
} else {
case string_amg:
(void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=bool__amg]));
break;
- case not_amg:
- (void)((cv = cvp[off=bool__amg])
- || (cv = cvp[off=numer_amg])
- || (cv = cvp[off=string_amg]));
- postpr = 1;
- break;
+ case not_amg:
+ (void)((cv = cvp[off=bool__amg])
+ || (cv = cvp[off=numer_amg])
+ || (cv = cvp[off=string_amg]));
+ postpr = 1;
+ break;
case copy_amg:
{
/*
* SV* ref causes confusion with the interpreter variable of
* the same name
*/
- SV* tmpRef=SvRV(left);
+ SV* const tmpRef=SvRV(left);
if (!SvROK(tmpRef) && SvTYPE(tmpRef) <= SVt_PVMG) {
/*
* Just to be extra cautious. Maybe in some
* additional cases sv_setsv is safe, too.
*/
- SV* newref = newSVsv(tmpRef);
+ SV* const newref = newSVsv(tmpRef);
SvOBJECT_on(newref);
- SvSTASH(newref) = (HV*)SvREFCNT_inc(SvSTASH(tmpRef));
+ SvSTASH_set(newref, (HV*)SvREFCNT_inc(SvSTASH(tmpRef)));
return newref;
}
}
case abs_amg:
if ((cvp[off1=lt_amg] || cvp[off1=ncmp_amg])
&& ((cv = cvp[off=neg_amg]) || (cv = cvp[off=subtr_amg]))) {
- SV* nullsv=sv_2mortal(newSViv(0));
+ SV* const nullsv=sv_2mortal(newSViv(0));
if (off1==lt_amg) {
- SV* lessp = amagic_call(left,nullsv,
+ SV* const lessp = amagic_call(left,nullsv,
lt_amg,AMGf_noright);
logic = SvTRUE(lessp);
} else {
- SV* lessp = amagic_call(left,nullsv,
+ SV* const lessp = amagic_call(left,nullsv,
ncmp_amg,AMGf_noright);
logic = (SvNV(lessp) < 0);
}
&& (mg = mg_find((SV*)stash, PERL_MAGIC_overload_table))
&& (cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr)
? (amtp = (AMT*)mg->mg_ptr)->table
- : (CV **) NULL))
+ : NULL))
&& (cv = cvp[off=method])) { /* Method for right
* argument found */
lr=1;
SV *msg;
if (off==-1) off=method;
msg = sv_2mortal(Perl_newSVpvf(aTHX_
- "Operation `%s': no method found,%sargument %s%s%s%s",
+ "Operation \"%s\": no method found,%sargument %s%s%s%s",
AMG_id2name(method + assignshift),
(flags & AMGf_unary ? " " : "\n\tleft "),
SvAMAGIC(left)?
"in overloaded package ":
"has no overloaded magic",
SvAMAGIC(left)?
- HvNAME(SvSTASH(SvRV(left))):
+ HvNAME_get(SvSTASH(SvRV(left))):
"",
SvAMAGIC(right)?
",\n\tright argument in overloaded package ":
? ""
: ",\n\tright argument has no overloaded magic"),
SvAMAGIC(right)?
- HvNAME(SvSTASH(SvRV(right))):
+ HvNAME_get(SvSTASH(SvRV(right))):
""));
if (amtp && amtp->fallback >= AMGfallYES) {
- DEBUG_o( Perl_deb(aTHX_ "%s", SvPVX(msg)) );
+ DEBUG_o( Perl_deb(aTHX_ "%s", SvPVX_const(msg)) );
} else {
- Perl_croak(aTHX_ "%"SVf, msg);
+ Perl_croak(aTHX_ "%"SVf, (void*)msg);
}
return NULL;
}
#ifdef DEBUGGING
if (!notfound) {
DEBUG_o(Perl_deb(aTHX_
- "Overloaded operator `%s'%s%s%s:\n\tmethod%s found%s in package %s%s\n",
+ "Overloaded operator \"%s\"%s%s%s:\n\tmethod%s found%s in package %s%s\n",
AMG_id2name(off),
method+assignshift==off? "" :
- " (initially `",
+ " (initially \"",
method+assignshift==off? "" :
AMG_id2name(method+assignshift),
- method+assignshift==off? "" : "')",
+ method+assignshift==off? "" : "\")",
flags & AMGf_unary? "" :
lr==1 ? " for right argument": " for left argument",
flags & AMGf_unary? " for argument" : "",
- stash ? HvNAME(stash) : "null",
+ stash ? HvNAME_get(stash) : "null",
fl? ",\n\tassignment variant used": "") );
}
#endif
dSP;
BINOP myop;
SV* res;
- bool oldcatch = CATCH_GET;
+ const bool oldcatch = CATCH_GET;
CATCH_SET(TRUE);
Zero(&myop, 1, BINOP);
myop.op_last = (OP *) &myop;
- myop.op_next = Nullop;
+ myop.op_next = NULL;
myop.op_flags = OPf_WANT_SCALAR | OPf_STACKED;
PUSHSTACKi(PERLSI_OVERLOAD);
CATCH_SET(oldcatch);
if (postpr) {
- int ans=0;
+ int ans;
switch (method) {
case le_amg:
case sle_amg:
SvSetSV(left,res); return left;
case not_amg:
ans=!SvTRUE(res); break;
+ default:
+ ans=0; break;
}
return boolSV(ans);
} else if (method==copy_amg) {
Perl_is_gv_magical_sv(pTHX_ SV *name, U32 flags)
{
STRLEN len;
- const char *temp = SvPV(name, len);
+ const char * const temp = SvPV_const(name, len);
return is_gv_magical(temp, len, flags);
}
bool
Perl_is_gv_magical(pTHX_ const char *name, STRLEN len, U32 flags)
{
- (void)flags;
+ PERL_UNUSED_CONTEXT;
+ PERL_UNUSED_ARG(flags);
+
if (len > 1) {
- const char *name1 = name + 1;
+ const char * const name1 = name + 1;
switch (*name) {
case 'I':
if (len == 3 && name1[1] == 'S' && name[2] == 'A')
case '\025': /* ${^UNICODE} */
if (strEQ(name1, "NICODE"))
goto yes;
- if (strEQ(name1, "TF8LOCALE"))
+ if (strEQ(name1, "TF8LOCALE"))
goto yes;
break;
case '\027': /* ${^WARNING_BITS} */
}
return FALSE;
}
+
+void
+Perl_gv_name_set(pTHX_ GV *gv, const char *name, U32 len, U32 flags)
+{
+ dVAR;
+ U32 hash;
+
+ assert(name);
+ PERL_UNUSED_ARG(flags);
+
+ if (len > I32_MAX)
+ Perl_croak(aTHX_ "panic: gv name too long (%"UVuf")", (UV) len);
+
+ if (!(flags & GV_ADD) && GvNAME_HEK(gv)) {
+ unshare_hek(GvNAME_HEK(gv));
+ }
+
+ PERL_HASH(hash, name, len);
+ GvNAME_HEK(gv) = share_hek(name, len, hash);
+}
+
+/*
+ * 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