/* 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.
if (!gv || SvTYPE((SV*)gv) != SVt_PVGV)
Perl_croak(aTHX_ "Bad symbol for scalar");
if (!GvSV(gv))
- GvSV(gv) = NEWSV(72,0);
+ GvSV(gv) = newSV(0);
return gv;
}
#endif
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)
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)
{
dVAR;
- register GP *gp;
- const bool doproto = SvTYPE(gv) > SVt_NULL;
+ 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;
case SVt_PVIO:
Perl_croak(aTHX_ "Cannot convert a reference to %s to typeglob",
sv_reftype(has_constant, 0));
+ default: NOOP;
}
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) {
SvPV_set(gv, NULL);
} else
Safefree(SvPVX_mutable(gv));
}
- Newxz(gp, 1, GP);
- GvGP(gv) = gp_ref(gp);
-#ifdef PERL_DONT_CREATE_GVSV
- GvSV(gv) = 0;
-#else
- GvSV(gv) = NEWSV(72,0);
-#endif
- 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);
+ SvSCREAM_on(gv);
+
+ GvGP(gv) = Perl_newGP(aTHX_ gv);
GvSTASH(gv) = stash;
if (stash)
Perl_sv_add_backref(aTHX_ (SV*)stash, (SV*)gv);
- GvNAME(gv) = savepvn(name, len);
- GvNAMELEN(gv) = len;
+ 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. */
case SVt_NULL:
case SVt_PVCV:
case SVt_PVFM:
+ case SVt_PVGV:
break;
default:
(void)GvSVn(gv);
GV *
Perl_gv_fetchmeth(pTHX_ HV *stash, const char *name, STRLEN len, I32 level)
{
+ dVAR;
AV* av;
GV* topgv;
GV* gv;
/* 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;
}
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);
+ 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 */
packlen -= 7;
basestash = gv_stashpvn(hvname, packlen, TRUE);
- gvp = (GV**)hv_fetch(basestash, "ISA", 3, FALSE);
+ 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);
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);
}
}
}
if (!basestash) {
if (ckWARN(WARN_MISC))
Perl_warner(aTHX_ packWARN(WARN_MISC), "Can't locate package %"SVf" for @%s::ISA",
- sv, hvname);
+ (void*)sv, hvname);
continue;
}
gv = gv_fetchmeth(basestash, name, len,
/* if at top level, try UNIVERSAL */
if (level == 0 || level == -1) {
- HV* const lastchance = gv_stashpvn("UNIVERSAL", 9, FALSE);
+ HV* const lastchance = gv_stashpvs("UNIVERSAL", FALSE);
if (lastchance) {
if ((gv = gv_fetchmeth(lastchance, name, len,
GV **gvp;
if (!stash)
- return Nullgv; /* UNIVERSAL::AUTOLOAD could cause trouble */
+ return NULL; /* UNIVERSAL::AUTOLOAD could cause trouble */
if (len == S_autolen && strnEQ(name, S_autoload, S_autolen))
- return Nullgv;
+ return NULL;
if (!(gv = gv_fetchmeth(stash, S_autoload, S_autolen, FALSE)))
- return Nullgv;
+ 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;
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;
--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_const(tmpstr), SvCUR(tmpstr), TRUE);
GV* vargv;
SV* varsv;
const char *packname = "";
- STRLEN packname_len;
+ STRLEN packname_len = 0;
if (len == S_autolen && strnEQ(name, S_autoload, S_autolen))
- return Nullgv;
+ return NULL;
if (stash) {
if (SvTYPE(stash) < SVt_PVHV) {
packname = SvPV_const((SV*)stash, packname_len);
}
}
if (!(gv = gv_fetchmeth(stash, S_autoload, S_autolen, FALSE)))
- return Nullgv;
+ return NULL;
cv = GvCV(gv);
if (!(CvROOT(cv) || CvXSUB(cv)))
- return Nullgv;
+ return NULL;
/*
* Inheriting AUTOLOAD for non-methods works ... for now.
"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 '::',
if (!isGV(vargv)) {
gv_init(vargv, varstash, S_autoload, S_autolen, FALSE);
#ifdef PERL_DONT_CREATE_GVSV
- GvSV(vargv) = NEWSV(72,0);
+ GvSV(vargv) = newSV(0);
#endif
}
LEAVE;
varsv = GvSVn(vargv);
sv_setpvn(varsv, packname, packname_len);
- sv_catpvn(varsv, "::", 2);
+ sv_catpvs(varsv, "::");
sv_catpvn(varsv, name, len);
SvTAINTED_off(varsv);
return gv;
S_require_errno(pTHX_ GV *gv)
{
dVAR;
- HV* stash = gv_stashpvn("Errno",5,FALSE);
+ HV* stash = gv_stashpvs("Errno", FALSE);
if (!stash || !(gv_fetchmethod(stash, "TIEHASH"))) {
dSP;
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;
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)
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;
-
- PERL_UNUSED_ARG(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
Newx(tmpbuf, len+3, char);
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_get(stash))
- hv_name_set(stash, nambeg, namend - nambeg, 0);
+ 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 5:
+ if (name[0] == 'S' && name[1] == 'T' && name[2] == 'D'
+ && name[3] == 'I' && name[4] == 'N')
global = TRUE;
break;
- case 'T':
- if (strEQ(name, "STDIN") || strEQ(name, "STDOUT") ||
- strEQ(name, "STDERR"))
+ 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 'R':
- if (strEQ(name, "ARGV") || strEQ(name, "ARGVOUT"))
+ 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;
}
}
}
: sv_type == SVt_PVAV ? "@"
: sv_type == SVt_PVHV ? "%"
: ""), name);
+ GV *gv;
if (USE_UTF8_IN_NAMES)
SvUTF8_on(err);
qerror(err);
- stash = GvHV(gv_fetchpv("<none>::", GV_ADDMULTI, SVt_PVHV));
+ gv = gv_fetchpvn_flags("<none>::", 8, GV_ADDMULTI, SVt_PVHV);
+ if(!gv) {
+ /* symbol table under destruction */
+ return NULL;
+ }
+ stash = GvHV(gv);
}
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;
}
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
if (strEQ(name2, "RGV")) {
IoFLAGS(GvIOn(gv)) |= IOf_ARGV|IOf_START;
}
+ else if (strEQ(name2, "RGVOUT")) {
+ GvMULTI_on(gv);
+ }
break;
case 'E':
if (strnEQ(name2, "XPORT", 5))
if (strEQ(name2, "SA")) {
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)
if (strEQ(name2, "VERLOAD")) {
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':
}
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 * const * const init = hv_fetch(hv, PL_sig_name[i], strlen(PL_sig_name[i]), 1);
if (init)
goto ro_magicalize;
if (strEQ(name2, "TF8LOCALE"))
goto ro_magicalize;
+ if (strEQ(name2, "TF8CACHE"))
+ goto magicalize;
break;
case '\027': /* $^WARNING_BITS */
if (strEQ(name2, "ARNING_BITS"))
case '-':
{
AV* const av = GvAVn(gv);
- sv_magic((SV*)av, Nullsv, PERL_MAGIC_regdata, Nullch, 0);
+ sv_magic((SV*)av, NULL, PERL_MAGIC_regdata, NULL, 0);
SvREADONLY_on(av);
goto magicalize;
}
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* const av = GvAVn(gv);
- sv_magic((SV*)av, (SV*)av, PERL_MAGIC_regdata, Nullch, 0);
+ sv_magic((SV*)av, (SV*)av, PERL_MAGIC_regdata, NULL, 0);
SvREADONLY_on(av);
/* FALL THROUGH */
}
case '\004': /* $^D */
case '\005': /* $^E */
case '\006': /* $^F */
- case '\010': /* $^H */
case '\011': /* $^I, NOT \t in EBCDIC */
case '\016': /* $^N */
case '\017': /* $^O */
{
SV * const sv = GvSVn(gv);
if (!sv_derived_from(PL_patchlevel, "version"))
- (void *)upg_version(PL_patchlevel);
+ upg_version(PL_patchlevel);
GvSV(gv) = vnumify(PL_patchlevel);
SvREADONLY_on(GvSV(gv));
SvREFCNT_dec(sv);
if (keepmain || strNE(name, "main")) {
sv_catpvn(sv,name,namelen);
- sv_catpvn(sv,"::", 2);
+ sv_catpvs(sv,"::");
}
sv_catpvn(sv,GvNAME(gv),GvNAMELEN(gv));
}
IO *
Perl_newIO(pTHX)
{
+ dVAR;
GV *iogv;
- IO * const io = (IO*)NEWSV(0,0);
+ IO * const io = (IO*)newSV(0);
sv_upgrade((SV *)io,SVt_PVIO);
/* This used to read SvREFCNT(io) = 1;
SvOBJECT_on(io);
/* Clear the stashcache because a new IO could overrule a package name */
hv_clear(PL_stashcache);
- iogv = gv_fetchpv("FileHandle::", 0, SVt_PVHV);
+ iogv = gv_fetchpvs("FileHandle::", 0, SVt_PVHV);
/* unless exists($main::{FileHandle}) and defined(%main::FileHandle::) */
if (!(iogv && GvHV(iogv) && HvARRAY(GvHV(iogv))))
- iogv = gv_fetchpv("IO::Handle::", TRUE, SVt_PVHV);
+ 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)
+Perl_gv_check(pTHX_ const HV *stash)
{
+ dVAR;
register I32 i;
if (!HvARRAY(stash))
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);
+ 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) {
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 i;
for (i = 1; i < NofAMmeth; i++) {
CV * const cv = amtp->table[i];
- if (cv != Nullcv) {
+ if (cv) {
SvREFCNT_dec((SV *) cv);
- amtp->table[i] = Nullcv;
+ amtp->table[i] = NULL;
}
}
}
bool
Perl_Gv_AMupdate(pTHX_ HV *stash)
{
+ 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
- && amtp->was_ok_sub == PL_sub_generation)
- return (bool)AMT_OVERLOADED(amtp);
- sv_unmagic((SV*)stash, PERL_MAGIC_overload_table);
+ if (mg) {
+ const AMT * const amtp = (AMT*)mg->mg_ptr;
+ if (amtp->was_ok_am == PL_amagic_generation
+ && amtp->was_ok_sub == PL_sub_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_get(stash)) );
lim = DESTROY_amg; /* Skip overloading entries. */
#ifdef PERL_DONT_CREATE_GVSV
else if (!sv) {
- /* Equivalent to !SvTRUE and !SvOK */
+ NOOP; /* Equivalent to !SvTRUE and !SvOK */
}
#endif
else if (SvTRUE(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",
/* 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;
+ GV *ngv = NULL;
SV *gvsv = GvSV(gv);
DEBUG_o( Perl_deb(aTHX_ "Resolving method \"%"SVf256\
"\" for overloaded \"%s\" in package \"%.256s\"\n",
- GvSV(gv), cp, hvname) );
+ (void*)GvSV(gv), cp, hvname) );
if (!gvsv || !SvPOK(gvsv)
|| !(ngv = gv_fetchmethod_autoload(stash, SvPVX_const(gvsv),
FALSE)))
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;
if (!stash || !HvNAME_get(stash))
- return Nullcv;
+ return NULL;
mg = mg_find((SV*)stash, PERL_MAGIC_overload_table);
if (!mg) {
do_update:
Gv_AMupdate(stash);
mg = mg_find((SV*)stash, PERL_MAGIC_overload_table);
}
+ assert(mg);
amtp = (AMT*)mg->mg_ptr;
if ( amtp->was_ok_am != PL_amagic_generation
|| amtp->was_ok_sub != PL_sub_generation )
return ret;
}
- return Nullcv;
+ return NULL;
}
&& (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 */
&& (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;
if (amtp && amtp->fallback >= AMGfallYES) {
DEBUG_o( Perl_deb(aTHX_ "%s", SvPVX_const(msg)) );
} else {
- Perl_croak(aTHX_ "%"SVf, msg);
+ Perl_croak(aTHX_ "%"SVf, (void*)msg);
}
return NULL;
}
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);
bool
Perl_is_gv_magical(pTHX_ const char *name, STRLEN len, U32 flags)
{
+ PERL_UNUSED_CONTEXT;
PERL_UNUSED_ARG(flags);
if (len > 1) {
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
https://perl5.git.perl.org / perl5.git / blobdiff