/* gv.c
*
- * Copyright (c) 1991-1997, Larry Wall
+ * Copyright (c) 1991-1999, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
#include "EXTERN.h"
+#define PERL_IN_GV_C
#include "perl.h"
-EXT char rcsid[];
-
GV *
-gv_AVadd(register GV *gv)
+Perl_gv_AVadd(pTHX_ register GV *gv)
{
if (!gv || SvTYPE((SV*)gv) != SVt_PVGV)
- croak("Bad symbol for array");
+ Perl_croak(aTHX_ "Bad symbol for array");
if (!GvAV(gv))
GvAV(gv) = newAV();
return gv;
}
GV *
-gv_HVadd(register GV *gv)
+Perl_gv_HVadd(pTHX_ register GV *gv)
{
if (!gv || SvTYPE((SV*)gv) != SVt_PVGV)
- croak("Bad symbol for hash");
+ Perl_croak(aTHX_ "Bad symbol for hash");
if (!GvHV(gv))
GvHV(gv) = newHV();
return gv;
}
GV *
-gv_IOadd(register GV *gv)
+Perl_gv_IOadd(pTHX_ register GV *gv)
{
if (!gv || SvTYPE((SV*)gv) != SVt_PVGV)
- croak("Bad symbol for filehandle");
+ Perl_croak(aTHX_ "Bad symbol for filehandle");
if (!GvIOp(gv))
GvIOp(gv) = newIO();
return gv;
}
GV *
-gv_fetchfile(char *name)
+Perl_gv_fetchfile(pTHX_ const char *name)
{
dTHR;
char smallbuf[256];
tmpbuf[0] = '_';
tmpbuf[1] = '<';
strcpy(tmpbuf + 2, name);
- gv = *(GV**)hv_fetch(defstash, tmpbuf, tmplen, TRUE);
+ gv = *(GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, TRUE);
if (!isGV(gv))
- gv_init(gv, defstash, tmpbuf, tmplen, FALSE);
+ gv_init(gv, PL_defstash, tmpbuf, tmplen, FALSE);
if (tmpbuf != smallbuf)
Safefree(tmpbuf);
sv_setpv(GvSV(gv), name);
}
void
-gv_init(GV *gv, HV *stash, char *name, STRLEN len, int multi)
+Perl_gv_init(pTHX_ GV *gv, HV *stash, const char *name, STRLEN len, int multi)
{
dTHR;
register GP *gp;
+ bool doproto = SvTYPE(gv) > SVt_NULL;
+ char *proto = (doproto && SvPOK(gv)) ? SvPVX(gv) : NULL;
sv_upgrade((SV*)gv, SVt_PVGV);
- if (SvLEN(gv))
- Safefree(SvPVX(gv));
+ if (SvLEN(gv)) {
+ if (proto) {
+ SvPVX(gv) = NULL;
+ SvLEN(gv) = 0;
+ SvPOK_off(gv);
+ } else
+ Safefree(SvPVX(gv));
+ }
Newz(602, gp, 1, GP);
GvGP(gv) = gp_ref(gp);
GvSV(gv) = NEWSV(72,0);
- GvLINE(gv) = curcop->cop_line;
- GvFILEGV(gv) = curcop->cop_filegv;
+ GvLINE(gv) = PL_curcop->cop_line;
+ GvFILEGV(gv) = PL_curcop->cop_filegv;
+ GvCVGEN(gv) = 0;
GvEGV(gv) = gv;
sv_magic((SV*)gv, (SV*)gv, '*', name, len);
GvSTASH(gv) = (HV*)SvREFCNT_inc(stash);
GvNAME(gv) = savepvn(name, len);
GvNAMELEN(gv) = len;
- if (multi)
+ 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;
+ LEAVE;
+
+ PL_sub_generation++;
+ CvGV(GvCV(gv)) = (GV*)SvREFCNT_inc(gv);
+ CvFILEGV(GvCV(gv)) = PL_curcop->cop_filegv;
+ CvSTASH(GvCV(gv)) = PL_curstash;
+#ifdef USE_THREADS
+ CvOWNER(GvCV(gv)) = 0;
+ if (!CvMUTEXP(GvCV(gv))) {
+ New(666, CvMUTEXP(GvCV(gv)), 1, perl_mutex);
+ MUTEX_INIT(CvMUTEXP(GvCV(gv)));
+ }
+#endif /* USE_THREADS */
+ if (proto) {
+ sv_setpv((SV*)GvCV(gv), proto);
+ Safefree(proto);
+ }
+ }
}
STATIC void
-gv_init_sv(GV *gv, I32 sv_type)
+S_gv_init_sv(pTHX_ GV *gv, I32 sv_type)
{
switch (sv_type) {
case SVt_PVIO:
}
GV *
-gv_fetchmeth(HV *stash, char *name, STRLEN len, I32 level)
+Perl_gv_fetchmeth(pTHX_ HV *stash, const char *name, STRLEN len, I32 level)
{
AV* av;
GV* topgv;
if (!stash)
return 0;
if ((level > 100) || (level < -100))
- croak("Recursive inheritance detected");
+ Perl_croak(aTHX_ "Recursive inheritance detected while looking for method '%s' in package '%s'",
+ name, HvNAME(stash));
- DEBUG_o( deb("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(stash)) );
gvp = (GV**)hv_fetch(stash, name, len, (level >= 0));
if (!gvp)
gv_init(topgv, stash, name, len, TRUE);
if (cv = GvCV(topgv)) {
/* If genuine method or valid cache entry, use it */
- if (!GvCVGEN(topgv) || GvCVGEN(topgv) >= sub_generation)
+ if (!GvCVGEN(topgv) || GvCVGEN(topgv) == PL_sub_generation)
return topgv;
/* Stale cached entry: junk it */
SvREFCNT_dec(cv);
GvCV(topgv) = cv = Nullcv;
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*)&sv_undef) ? GvAV(gv) : Nullav;
+ av = (gvp && (gv = *gvp) && gv != (GV*)&PL_sv_undef) ? GvAV(gv) : Nullav;
/* create and re-create @.*::SUPER::ISA on demand */
if (!av || !SvMAGIC(av)) {
packlen -= 7;
basestash = gv_stashpvn(packname, packlen, TRUE);
gvp = (GV**)hv_fetch(basestash, "ISA", 3, FALSE);
- if (gvp && (gv = *gvp) != (GV*)&sv_undef && (av = GvAV(gv))) {
+ if (gvp && (gv = *gvp) != (GV*)&PL_sv_undef && (av = GvAV(gv))) {
dTHR; /* just for SvREFCNT_dec */
gvp = (GV**)hv_fetch(stash, "ISA", 3, TRUE);
if (!gvp || !(gv = *gvp))
- croak("Cannot create %s::ISA", HvNAME(stash));
+ Perl_croak(aTHX_ "Cannot create %s::ISA", HvNAME(stash));
if (SvTYPE(gv) != SVt_PVGV)
gv_init(gv, stash, "ISA", 3, TRUE);
SvREFCNT_dec(GvAV(gv));
SV* sv = *svp++;
HV* basestash = gv_stashsv(sv, FALSE);
if (!basestash) {
- if (dowarn)
- warn("Can't locate package %s for @%s::ISA",
+ dTHR; /* just for ckWARN */
+ if (ckWARN(WARN_MISC))
+ Perl_warner(aTHX_ WARN_MISC, "Can't locate package %s for @%s::ISA",
SvPVX(sv), HvNAME(stash));
continue;
}
if (cv = GvCV(topgv))
SvREFCNT_dec(cv);
GvCV(topgv) = (CV*)SvREFCNT_inc(GvCV(gv));
- GvCVGEN(topgv) = sub_generation;
+ GvCVGEN(topgv) = PL_sub_generation;
}
return gv;
}
+ else if (topgv && GvREFCNT(topgv) == 1) {
+ /* cache the fact that the method is not defined */
+ GvCVGEN(topgv) = PL_sub_generation;
+ }
}
}
}
GV *
-gv_fetchmethod(HV *stash, char *name)
+Perl_gv_fetchmethod(pTHX_ HV *stash, const char *name)
{
return gv_fetchmethod_autoload(stash, name, TRUE);
}
GV *
-gv_fetchmethod_autoload(HV *stash, char *name, I32 autoload)
+Perl_gv_fetchmethod_autoload(pTHX_ HV *stash, const char *name, I32 autoload)
{
dTHR;
- register char *nend;
- char *nsplit = 0;
+ register const char *nend;
+ const char *nsplit = 0;
GV* gv;
for (nend = name; *nend; nend++) {
nsplit = ++nend;
}
if (nsplit) {
- char *origname = name;
+ const char *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(newSVpvf("%s::SUPER",
- HvNAME(curcop->cop_stash)));
+ SV *tmpstr = sv_2mortal(Perl_newSVpvf(aTHX_ "%s::SUPER",
+ HvNAME(PL_curcop->cop_stash)));
stash = gv_stashpvn(SvPVX(tmpstr), SvCUR(tmpstr), TRUE);
- DEBUG_o( deb("Treating %s as %s::%s\n",
+ DEBUG_o( Perl_deb(aTHX_ "Treating %s as %s::%s\n",
origname, HvNAME(stash), name) );
}
else
gv = gv_fetchmeth(stash, name, nend - name, 0);
if (!gv) {
if (strEQ(name,"import"))
- gv = (GV*)&sv_yes;
+ gv = (GV*)&PL_sv_yes;
else if (autoload)
gv = gv_autoload4(stash, name, nend - name, TRUE);
}
}
GV*
-gv_autoload4(HV *stash, char *name, STRLEN len, I32 method)
+Perl_gv_autoload4(pTHX_ HV *stash, const char *name, STRLEN len, I32 method)
{
+ dTHR;
static char autoload[] = "AUTOLOAD";
static STRLEN autolen = 8;
GV* gv;
/*
* Inheriting AUTOLOAD for non-methods works ... for now.
*/
- if (dowarn && !method && (GvCVGEN(gv) || GvSTASH(gv) != stash))
- warn(
+ if (ckWARN(WARN_DEPRECATED) && !method &&
+ (GvCVGEN(gv) || GvSTASH(gv) != stash))
+ Perl_warner(aTHX_ WARN_DEPRECATED,
"Use of inherited AUTOLOAD for non-method %s::%.*s() is deprecated",
HvNAME(stash), (int)len, name);
}
HV*
-gv_stashpv(char *name, I32 create)
+Perl_gv_stashpv(pTHX_ const char *name, I32 create)
{
return gv_stashpvn(name, strlen(name), create);
}
HV*
-gv_stashpvn(char *name, U32 namelen, I32 create)
+Perl_gv_stashpvn(pTHX_ const char *name, U32 namelen, I32 create)
{
char smallbuf[256];
char *tmpbuf;
}
HV*
-gv_stashsv(SV *sv, I32 create)
+Perl_gv_stashsv(pTHX_ SV *sv, I32 create)
{
register char *ptr;
STRLEN len;
GV *
-gv_fetchpv(char *nambeg, I32 add, I32 sv_type)
+Perl_gv_fetchpv(pTHX_ const char *nambeg, I32 add, I32 sv_type)
{
dTHR;
- register char *name = nambeg;
+ register const char *name = nambeg;
register GV *gv = 0;
GV**gvp;
I32 len;
- register char *namend;
+ register const char *namend;
HV *stash = 0;
U32 add_gvflags = 0;
(*namend == ':' && namend[1] == ':'))
{
if (!stash)
- stash = defstash;
+ stash = PL_defstash;
if (!stash || !SvREFCNT(stash)) /* symbol table under destruction */
return Nullgv;
len = namend - name;
if (len > 0) {
+ char smallbuf[256];
char *tmpbuf;
- char autobuf[64];
- if (len < sizeof(autobuf) - 2)
- tmpbuf = autobuf;
+ if (len + 3 < sizeof smallbuf)
+ tmpbuf = smallbuf;
else
New(601, tmpbuf, len+3, char);
Copy(name, tmpbuf, len, char);
tmpbuf[len] = '\0';
gvp = (GV**)hv_fetch(stash,tmpbuf,len,add);
gv = gvp ? *gvp : Nullgv;
- if (gv && gv != (GV*)&sv_undef) {
+ if (gv && gv != (GV*)&PL_sv_undef) {
if (SvTYPE(gv) != SVt_PVGV)
- gv_init(gv, stash, tmpbuf, len, (add & 2));
+ gv_init(gv, stash, tmpbuf, len, (add & GV_ADDMULTI));
else
GvMULTI_on(gv);
}
- if (tmpbuf != autobuf)
+ if (tmpbuf != smallbuf)
Safefree(tmpbuf);
- if (!gv || gv == (GV*)&sv_undef)
+ if (!gv || gv == (GV*)&PL_sv_undef)
return Nullgv;
if (!(stash = GvHV(gv)))
namend++;
name = namend;
if (!*name)
- return gv ? gv : (GV*)*hv_fetch(defstash, "main::", 6, TRUE);
+ return gv ? gv : (GV*)*hv_fetch(PL_defstash, "main::", 6, TRUE);
}
}
len = namend - name;
/* No stash in name, so see how we can default */
if (!stash) {
- if (isIDFIRST(*name)) {
+ if (isIDFIRST(*name)
+ || (IN_UTF8 && ((*name & 0xc0) == 0xc0) && isIDFIRST_utf8((U8*)name)))
+ {
bool global = FALSE;
if (isUPPER(*name)) {
- if (*name > 'I') {
- if (*name == 'S' && (
- strEQ(name, "SIG") ||
- strEQ(name, "STDIN") ||
- strEQ(name, "STDOUT") ||
- strEQ(name, "STDERR") ))
- global = TRUE;
- }
- else if (*name > 'E') {
- if (*name == 'I' && strEQ(name, "INC"))
- global = TRUE;
- }
- else if (*name > 'A') {
- if (*name == 'E' && strEQ(name, "ENV"))
- global = TRUE;
- }
+ if (*name == 'S' && (
+ strEQ(name, "SIG") ||
+ strEQ(name, "STDIN") ||
+ strEQ(name, "STDOUT") ||
+ strEQ(name, "STDERR")))
+ global = TRUE;
+ else if (*name == 'I' && strEQ(name, "INC"))
+ global = TRUE;
+ else if (*name == 'E' && strEQ(name, "ENV"))
+ global = TRUE;
else if (*name == 'A' && (
strEQ(name, "ARGV") ||
- strEQ(name, "ARGVOUT") ))
+ strEQ(name, "ARGVOUT")))
global = TRUE;
}
else if (*name == '_' && !name[1])
global = TRUE;
if (global)
- stash = defstash;
- else if ((COP*)curcop == &compiling) {
- stash = curstash;
- if (add && (hints & HINT_STRICT_VARS) &&
+ stash = PL_defstash;
+ else if ((COP*)PL_curcop == &PL_compiling) {
+ stash = PL_curstash;
+ if (add && (PL_hints & HINT_STRICT_VARS) &&
sv_type != SVt_PVCV &&
sv_type != SVt_PVGV &&
sv_type != SVt_PVFM &&
{
gvp = (GV**)hv_fetch(stash,name,len,0);
if (!gvp ||
- *gvp == (GV*)&sv_undef ||
+ *gvp == (GV*)&PL_sv_undef ||
SvTYPE(*gvp) != SVt_PVGV)
{
stash = 0;
sv_type == SVt_PVAV && !GvIMPORTED_AV(*gvp) ||
sv_type == SVt_PVHV && !GvIMPORTED_HV(*gvp) )
{
- warn("Variable \"%c%s\" is not imported",
+ Perl_warn(aTHX_ "Variable \"%c%s\" is not imported",
sv_type == SVt_PVAV ? '@' :
sv_type == SVt_PVHV ? '%' : '$',
name);
if (GvCVu(*gvp))
- warn("(Did you mean &%s instead?)\n", name);
+ Perl_warn(aTHX_ "(Did you mean &%s instead?)\n", name);
stash = 0;
}
}
}
else
- stash = curcop->cop_stash;
+ stash = PL_curcop->cop_stash;
}
else
- stash = defstash;
+ stash = PL_defstash;
}
/* By this point we should have a stash and a name */
if (!stash) {
if (!add)
return Nullgv;
- if (add & ~2) {
+ {
char sv_type_char = ((sv_type == SVt_PV) ? '$'
: (sv_type == SVt_PVAV) ? '@'
: (sv_type == SVt_PVHV) ? '%'
: 0);
if (sv_type_char)
- warn("Global symbol \"%c%s\" requires explicit package name",
+ Perl_warn(aTHX_ "Global symbol \"%c%s\" requires explicit package name",
sv_type_char, name);
else
- warn("Global symbol \"%s\" requires explicit package name",
+ Perl_warn(aTHX_ "Global symbol \"%s\" requires explicit package name",
name);
}
- ++error_count;
- stash = curstash ? curstash : defstash; /* avoid core dumps */
+ ++PL_error_count;
+ stash = PL_curstash ? PL_curstash : PL_defstash; /* avoid core dumps */
add_gvflags = ((sv_type == SVt_PV) ? GVf_IMPORTED_SV
: (sv_type == SVt_PVAV) ? GVf_IMPORTED_AV
: (sv_type == SVt_PVHV) ? GVf_IMPORTED_HV
return Nullgv;
gvp = (GV**)hv_fetch(stash,name,len,add);
- if (!gvp || *gvp == (GV*)&sv_undef)
+ if (!gvp || *gvp == (GV*)&PL_sv_undef)
return Nullgv;
gv = *gvp;
if (SvTYPE(gv) == SVt_PVGV) {
gv_init_sv(gv, sv_type);
}
return gv;
+ } else if (add & GV_NOINIT) {
+ return gv;
}
/* Adding a new symbol */
- if (add & 4)
- warn("Had to create %s unexpectedly", nambeg);
- gv_init(gv, stash, name, len, add & 2);
+ if (add & GV_ADDWARN && ckWARN_d(WARN_INTERNAL))
+ Perl_warner(aTHX_ WARN_INTERNAL, "Had to create %s unexpectedly", nambeg);
+ gv_init(gv, stash, name, len, add & GV_ADDMULTI);
gv_init_sv(gv, sv_type);
GvFLAGS(gv) |= add_gvflags;
+ if (isLEXWARN_on && isALPHA(name[0]) && ! ckWARN(WARN_ONCE))
+ GvMULTI_on(gv) ;
+
/* set up magic where warranted */
switch (*name) {
case 'A':
IoFLAGS(GvIOn(gv)) |= IOf_ARGV|IOf_START;
}
break;
-
- case 'a':
- case 'b':
- if (len == 1)
- GvMULTI_on(gv);
- break;
case 'E':
if (strnEQ(name, "EXPORT", 6))
GvMULTI_on(gv);
GvMULTI_on(gv);
sv_magic((SV*)av, (SV*)gv, 'I', Nullch, 0);
/* NOTE: No support for tied ISA */
- if (add & 2 && strEQ(nambeg,"AnyDBM_File::ISA") && AvFILLp(av) == -1)
+ if ((add & GV_ADDMULTI) && strEQ(nambeg,"AnyDBM_File::ISA")
+ && AvFILLp(av) == -1)
{
char *pname;
- av_push(av, newSVpv(pname = "NDBM_File",0));
+ av_push(av, newSVpvn(pname = "NDBM_File",9));
gv_stashpvn(pname, 9, TRUE);
- av_push(av, newSVpv(pname = "DB_File",0));
+ av_push(av, newSVpvn(pname = "DB_File",7));
gv_stashpvn(pname, 7, TRUE);
- av_push(av, newSVpv(pname = "GDBM_File",0));
+ av_push(av, newSVpvn(pname = "GDBM_File",9));
gv_stashpvn(pname, 9, TRUE);
- av_push(av, newSVpv(pname = "SDBM_File",0));
+ av_push(av, newSVpvn(pname = "SDBM_File",9));
gv_stashpvn(pname, 9, TRUE);
- av_push(av, newSVpv(pname = "ODBM_File",0));
+ av_push(av, newSVpvn(pname = "ODBM_File",9));
gv_stashpvn(pname, 9, TRUE);
}
}
break;
-#ifdef OVERLOAD
case 'O':
if (strEQ(name, "OVERLOAD")) {
HV* hv = GvHVn(gv);
hv_magic(hv, gv, 'A');
}
break;
-#endif /* OVERLOAD */
case 'S':
if (strEQ(name, "SIG")) {
HV *hv;
I32 i;
- siggv = gv;
- GvMULTI_on(siggv);
- hv = GvHVn(siggv);
- hv_magic(hv, siggv, 'S');
- for(i=1;sig_name[i];i++) {
+ PL_siggv = gv;
+ GvMULTI_on(PL_siggv);
+ hv = GvHVn(PL_siggv);
+ hv_magic(hv, PL_siggv, 'S');
+ for(i=1;PL_sig_name[i];i++) {
SV ** init;
- init=hv_fetch(hv,sig_name[i],strlen(sig_name[i]),1);
+ init=hv_fetch(hv,PL_sig_name[i],strlen(PL_sig_name[i]),1);
if(init)
- sv_setsv(*init,&sv_undef);
- psig_ptr[i] = 0;
- psig_name[i] = 0;
+ sv_setsv(*init,&PL_sv_undef);
+ PL_psig_ptr[i] = 0;
+ PL_psig_name[i] = 0;
}
- /* initialize signal stack */
- signalstack = newAV();
- AvREAL_off(signalstack);
- av_extend(signalstack, 30);
- av_fill(signalstack, 0);
}
break;
+ case 'V':
+ if (strEQ(name, "VERSION"))
+ GvMULTI_on(gv);
+ break;
case '&':
if (len > 1)
break;
- ampergv = gv;
- sawampersand = TRUE;
+ PL_ampergv = gv;
+ PL_sawampersand = TRUE;
goto ro_magicalize;
case '`':
if (len > 1)
break;
- leftgv = gv;
- sawampersand = TRUE;
+ PL_leftgv = gv;
+ PL_sawampersand = TRUE;
goto ro_magicalize;
case '\'':
if (len > 1)
break;
- rightgv = gv;
- sawampersand = TRUE;
+ PL_rightgv = gv;
+ PL_sawampersand = TRUE;
goto ro_magicalize;
case ':':
if (len > 1)
break;
- sv_setpv(GvSV(gv),chopset);
+ sv_setpv(GvSV(gv),PL_chopset);
goto magicalize;
case '?':
if (len > 1)
break;
#ifdef COMPLEX_STATUS
- sv_upgrade(GvSV(gv), SVt_PVLV);
+ (void)SvUPGRADE(GvSV(gv), SVt_PVLV);
#endif
goto magicalize;
+ case '!':
+ if (len > 1)
+ break;
+ if (sv_type > SVt_PV && PL_curcop != &PL_compiling) {
+ HV* stash = gv_stashpvn("Errno",5,FALSE);
+ if (!stash || !(gv_fetchmethod(stash, "TIEHASH"))) {
+ dSP;
+ PUTBACK;
+ require_pv("Errno.pm");
+ SPAGAIN;
+ stash = gv_stashpvn("Errno",5,FALSE);
+ if (!stash || !(gv_fetchmethod(stash, "TIEHASH")))
+ Perl_croak(aTHX_ "Can't use %%! because Errno.pm is not available");
+ }
+ }
+ goto magicalize;
+ case '-':
+ if (len > 1)
+ break;
+ else {
+ AV* av = GvAVn(gv);
+ sv_magic((SV*)av, Nullsv, 'D', Nullch, 0);
+ }
+ goto magicalize;
case '#':
case '*':
- if (dowarn && len == 1 && sv_type == SVt_PV)
- warn("Use of $%s is deprecated", name);
+ if (ckWARN(WARN_DEPRECATED) && len == 1 && sv_type == SVt_PV)
+ Perl_warner(aTHX_ WARN_DEPRECATED, "Use of $%s is deprecated", name);
/* FALL THROUGH */
case '[':
- case '!':
case '^':
case '~':
case '=':
- case '-':
case '%':
case '.':
case '(':
case '/':
case '|':
case '\001':
+ case '\003':
case '\004':
case '\005':
case '\006':
case '\010':
+ case '\011': /* NOT \t in EBCDIC */
case '\017':
- case '\t':
case '\020':
case '\024':
- case '\027':
if (len > 1)
break;
goto magicalize;
+ case '\023':
+ if (len > 1)
+ break;
+ goto ro_magicalize;
+ case '\027': /* $^W & $^Warnings */
+ if (len > 1 && strNE(name, "\027arnings"))
+ break;
+ goto magicalize;
case '+':
+ if (len > 1)
+ break;
+ else {
+ AV* av = GvAVn(gv);
+ sv_magic((SV*)av, (SV*)av, 'D', Nullch, 0);
+ }
+ /* FALL THROUGH */
case '1':
case '2':
case '3':
case '7':
case '8':
case '9':
- case '\023':
ro_magicalize:
SvREADONLY_on(GvSV(gv));
magicalize:
if (len > 1)
break;
sv_setpv(GvSV(gv),"\f");
- formfeed = GvSV(gv);
+ PL_formfeed = GvSV(gv);
break;
case ';':
if (len > 1)
case ']':
if (len == 1) {
SV *sv = GvSV(gv);
- sv_upgrade(sv, SVt_PVNV);
- sv_setpv(sv, patchlevel);
+ (void)SvUPGRADE(sv, SVt_PVNV);
+ sv_setpv(sv, PL_patchlevel);
(void)sv_2nv(sv);
SvREADONLY_on(sv);
}
}
void
-gv_fullname3(SV *sv, GV *gv, char *prefix)
+Perl_gv_fullname3(pTHX_ SV *sv, GV *gv, const char *prefix)
{
HV *hv = GvSTASH(gv);
if (!hv) {
}
void
-gv_efullname3(SV *sv, GV *gv, char *prefix)
+Perl_gv_efullname3(pTHX_ SV *sv, GV *gv, const char *prefix)
{
GV *egv = GvEGV(gv);
if (!egv)
/* XXX compatibility with versions <= 5.003. */
void
-gv_fullname(SV *sv, GV *gv)
+Perl_gv_fullname(pTHX_ SV *sv, GV *gv)
{
gv_fullname3(sv, gv, sv == (SV*)gv ? "*" : "");
}
/* XXX compatibility with versions <= 5.003. */
void
-gv_efullname(SV *sv, GV *gv)
+Perl_gv_efullname(pTHX_ SV *sv, GV *gv)
{
gv_efullname3(sv, gv, sv == (SV*)gv ? "*" : "");
}
IO *
-newIO(void)
+Perl_newIO(pTHX)
{
dTHR;
IO *io;
SvREFCNT(io) = 1;
SvOBJECT_on(io);
iogv = gv_fetchpv("FileHandle::", FALSE, SVt_PVHV);
- if (!iogv)
+ /* unless exists($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));
return io;
}
void
-gv_check(HV *stash)
+Perl_gv_check(pTHX_ HV *stash)
{
dTHR;
register HE *entry;
if (HeKEY(entry)[HeKLEN(entry)-1] == ':' &&
(gv = (GV*)HeVAL(entry)) && (hv = GvHV(gv)) && HvNAME(hv))
{
- if (hv != defstash)
+ if (hv != PL_defstash && hv != stash)
gv_check(hv); /* nested package */
}
else if (isALPHA(*HeKEY(entry))) {
gv = (GV*)HeVAL(entry);
- if (GvMULTI(gv))
+ if (SvTYPE(gv) != SVt_PVGV || GvMULTI(gv))
continue;
- curcop->cop_line = GvLINE(gv);
+ PL_curcop->cop_line = GvLINE(gv);
filegv = GvFILEGV(gv);
- curcop->cop_filegv = filegv;
+ PL_curcop->cop_filegv = filegv;
if (filegv && GvMULTI(filegv)) /* Filename began with slash */
continue;
- warn("Name \"%s::%s\" used only once: possible typo",
+ Perl_warner(aTHX_ WARN_ONCE,
+ "Name \"%s::%s\" used only once: possible typo",
HvNAME(stash), GvNAME(gv));
}
}
}
GV *
-newGVgen(char *pack)
+Perl_newGVgen(pTHX_ char *pack)
{
- return gv_fetchpv(form("%s::_GEN_%ld", pack, (long)gensym++),
+ return gv_fetchpv(Perl_form(aTHX_ "%s::_GEN_%ld", pack, (long)PL_gensym++),
TRUE, SVt_PVGV);
}
/* hopefully this is only called on local symbol table entries */
GP*
-gp_ref(GP *gp)
+Perl_gp_ref(pTHX_ GP *gp)
{
gp->gp_refcnt++;
if (gp->gp_cv) {
}
else {
/* Adding a new name to a subroutine invalidates method cache */
- sub_generation++;
+ PL_sub_generation++;
}
}
return gp;
}
void
-gp_free(GV *gv)
+Perl_gp_free(pTHX_ GV *gv)
{
+ dTHR;
GP* gp;
CV* cv;
if (!gv || !(gp = GvGP(gv)))
return;
if (gp->gp_refcnt == 0) {
- warn("Attempt to free unreferenced glob pointers");
+ if (ckWARN_d(WARN_INTERNAL))
+ Perl_warner(aTHX_ WARN_INTERNAL,
+ "Attempt to free unreferenced glob pointers");
return;
}
if (gp->gp_cv) {
/* Deleting the name of a subroutine invalidates method cache */
- sub_generation++;
+ PL_sub_generation++;
}
if (--gp->gp_refcnt > 0) {
if (gp->gp_egv == gv)
}
#endif /* Microport 2.4 hack */
-#ifdef OVERLOAD
/* Updates and caches the CV's */
bool
-Gv_AMupdate(HV *stash)
+Perl_Gv_AMupdate(pTHX_ HV *stash)
{
dTHR;
GV** gvp;
MAGIC* mg=mg_find((SV*)stash,'c');
AMT *amtp = (mg) ? (AMT*)mg->mg_ptr: (AMT *) NULL;
AMT amt;
+ STRLEN n_a;
- if (mg && amtp->was_ok_am == amagic_generation
- && amtp->was_ok_sub == sub_generation)
+ if (mg && amtp->was_ok_am == PL_amagic_generation
+ && amtp->was_ok_sub == PL_sub_generation)
return AMT_AMAGIC(amtp);
if (amtp && AMT_AMAGIC(amtp)) { /* Have table. */
int i;
}
sv_unmagic((SV*)stash, 'c');
- DEBUG_o( deb("Recalcing overload magic in package %s\n",HvNAME(stash)) );
+ DEBUG_o( Perl_deb(aTHX_ "Recalcing overload magic in package %s\n",HvNAME(stash)) );
- amt.was_ok_am = amagic_generation;
- amt.was_ok_sub = sub_generation;
+ amt.was_ok_am = PL_amagic_generation;
+ amt.was_ok_sub = PL_sub_generation;
amt.fallback = AMGfallNO;
amt.flags = 0;
#ifdef OVERLOAD_VIA_HASH
gvp=(GV**)hv_fetch(stash,"OVERLOAD",8,FALSE); /* A shortcut */
- if (gvp && ((gv = *gvp) != (GV*)&sv_undef && (hv = GvHV(gv)))) {
+ if (gvp && ((gv = *gvp) != (GV*)&PL_sv_undef && (hv = GvHV(gv)))) {
int filled=0;
int i;
char *cp;
SV* sv;
SV** svp;
- /* Work with "fallback" key, which we assume to be first in AMG_names */
+ /* Work with "fallback" key, which we assume to be first in PL_AMG_names */
- if (( cp = (char *)AMG_names[0] ) &&
+ if (( cp = (char *)PL_AMG_names[0] ) &&
(svp = (SV**)hv_fetch(hv,cp,strlen(cp),FALSE)) && (sv = *svp)) {
if (SvTRUE(sv)) amt.fallback=AMGfallYES;
else if (SvOK(sv)) amt.fallback=AMGfallNEVER;
}
for (i = 1; i < NofAMmeth; i++) {
cv = 0;
- cp = (char *)AMG_names[i];
+ cp = (char *)PL_AMG_names[i];
svp = (SV**)hv_fetch(hv, cp, strlen(cp), FALSE);
- if (svp && ((sv = *svp) != &sv_undef)) {
+ if (svp && ((sv = *svp) != &PL_sv_undef)) {
switch (SvTYPE(sv)) {
default:
if (!SvROK(sv)) {
if (!SvOK(sv)) break;
- gv = gv_fetchmethod(stash, SvPV(sv, na));
+ gv = gv_fetchmethod(stash, SvPV(sv, n_a));
if (gv) cv = GvCV(gv);
break;
}
/* FALL THROUGH */
case SVt_PVHV:
case SVt_PVAV:
- croak("Not a subroutine reference in overload table");
+ Perl_croak(aTHX_ "Not a subroutine reference in overload table");
return FALSE;
case SVt_PVCV:
cv = (CV*)sv;
break;
case SVt_PVGV:
if (!(cv = GvCVu((GV*)sv)))
- cv = sv_2cv(sv, &stash, &gv, TRUE);
+ cv = sv_2cv(sv, &stash, &gv, FALSE);
break;
}
if (cv) filled=1;
else {
- croak("Method for operation %s not found in package %.256s during blessing\n",
+ Perl_croak(aTHX_ "Method for operation %s not found in package %.256s during blessing\n",
cp,HvNAME(stash));
return FALSE;
}
SV* sv = NULL;
SV** svp;
- /* Work with "fallback" key, which we assume to be first in AMG_names */
+ /* Work with "fallback" key, which we assume to be first in PL_AMG_names */
- if ( cp = AMG_names[0] ) {
+ if ( cp = PL_AMG_names[0] ) {
/* Try to find via inheritance. */
gv = gv_fetchmeth(stash, "()", 2, -1); /* A cookie: "()". */
if (gv) sv = GvSV(gv);
}
for (i = 1; i < NofAMmeth; i++) {
- SV *cookie = sv_2mortal(newSVpvf("(%s", cp = AMG_names[i]));
- DEBUG_o( deb("Checking overloading of `%s' in package `%.256s'\n",
+ SV *cookie = sv_2mortal(Perl_newSVpvf(aTHX_ "(%s", cp = PL_AMG_names[i]));
+ DEBUG_o( Perl_deb(aTHX_ "Checking overloading of `%s' in package `%.256s'\n",
cp, HvNAME(stash)) );
/* don't fill the cache while looking up! */
gv = gv_fetchmeth(stash, SvPVX(cookie), SvCUR(cookie), -1);
/* GvSV contains the name of the method. */
GV *ngv;
- DEBUG_o( deb("Resolving method `%.256s' for overloaded `%s' in package `%.256s'\n",
- SvPV(GvSV(gv), na), cp, HvNAME(stash)) );
+ DEBUG_o( Perl_deb(aTHX_ "Resolving method `%.256s' for overloaded `%s' in package `%.256s'\n",
+ SvPV(GvSV(gv), n_a), cp, HvNAME(stash)) );
if (!SvPOK(GvSV(gv))
|| !(ngv = gv_fetchmethod_autoload(stash, SvPVX(GvSV(gv)),
FALSE)))
{
/* Can be an import stub (created by `can'). */
if (GvCVGEN(gv)) {
- croak("Stub found while resolving method `%.256s' overloading `%s' in package `%.256s'",
+ Perl_croak(aTHX_ "Stub found while resolving method `%.256s' overloading `%s' in package `%.256s'",
(SvPOK(GvSV(gv)) ? SvPVX(GvSV(gv)) : "???" ),
cp, HvNAME(stash));
} else
- croak("Cannot resolve method `%.256s' overloading `%s' in package `%.256s'",
+ Perl_croak(aTHX_ "Can't resolve method `%.256s' overloading `%s' in package `%.256s'",
(SvPOK(GvSV(gv)) ? SvPVX(GvSV(gv)) : "???" ),
cp, HvNAME(stash));
}
cv = GvCV(gv = ngv);
}
- DEBUG_o( deb("Overloading `%s' in package `%.256s' via `%.256s::%.256s' \n",
+ DEBUG_o( Perl_deb(aTHX_ "Overloading `%s' in package `%.256s' via `%.256s::%.256s' \n",
cp, HvNAME(stash), HvNAME(GvSTASH(CvGV(cv))),
GvNAME(CvGV(cv))) );
filled = 1;
return FALSE;
}
-/* During call to this subroutine stack can be reallocated. It is
- * advised to call SPAGAIN macro in your code after call */
-
SV*
-amagic_call(SV *left, SV *right, int method, int flags)
+Perl_amagic_call(pTHX_ SV *left, SV *right, int method, int flags)
{
dTHR;
MAGIC *mg;
CV **cvp=NULL, **ocvp=NULL;
AMT *amtp, *oamtp;
int fl=0, off, off1, lr=0, assign=AMGf_assign & flags, notfound=0;
- int postpr=0, inc_dec_ass=0, assignshift=assign?1:0;
+ int postpr = 0, force_cpy = 0, assignshift = assign ? 1 : 0;
HV* stash;
if (!(AMGf_noleft & flags) && SvAMAGIC(left)
&& (mg = mg_find((SV*)(stash=SvSTASH(SvRV(left))),'c'))
int logic;
/* look for substituted methods */
+ /* In all the covered cases we should be called with assign==0. */
switch (method) {
case inc_amg:
- if (((cv = cvp[off=add_ass_amg]) && (inc_dec_ass=1))
- || ((cv = cvp[off=add_amg]) && (postpr=1))) {
- right = &sv_yes; lr = -1; assign = 1;
+ force_cpy = 1;
+ if ((cv = cvp[off=add_ass_amg])
+ || ((cv = cvp[off = add_amg]) && (force_cpy = 0, postpr = 1))) {
+ right = &PL_sv_yes; lr = -1; assign = 1;
}
break;
case dec_amg:
- if (((cv = cvp[off=subtr_ass_amg]) && (inc_dec_ass=1))
- || ((cv = cvp[off=subtr_amg]) && (postpr=1))) {
- right = &sv_yes; lr = -1; assign = 1;
+ force_cpy = 1;
+ if ((cv = cvp[off = subtr_ass_amg])
+ || ((cv = cvp[off = subtr_amg]) && (force_cpy = 0, postpr=1))) {
+ right = &PL_sv_yes; lr = -1; assign = 1;
}
break;
case bool__amg:
lr = 1;
}
break;
+ case iter_amg: /* XXXX Eventually should do to_gv. */
+ case to_sv_amg:
+ case to_av_amg:
+ case to_hv_amg:
+ case to_gv_amg:
+ case to_cv_amg:
+ /* FAIL safe */
+ return NULL; /* Delegate operation to standard mechanisms. */
+ break;
default:
goto not_found;
}
} else {
SV *msg;
if (off==-1) off=method;
- msg = sv_2mortal(newSVpvf(
+ msg = sv_2mortal(Perl_newSVpvf(aTHX_
"Operation `%s': no method found,%sargument %s%s%s%s",
- AMG_names[method + assignshift],
+ PL_AMG_names[method + assignshift],
(flags & AMGf_unary ? " " : "\n\tleft "),
SvAMAGIC(left)?
"in overloaded package ":
HvNAME(SvSTASH(SvRV(right))):
""));
if (amtp && amtp->fallback >= AMGfallYES) {
- DEBUG_o( deb("%s", SvPVX(msg)) );
+ DEBUG_o( Perl_deb(aTHX_ "%s", SvPVX(msg)) );
} else {
- croak("%_", msg);
+ Perl_croak(aTHX_ "%_", msg);
}
return NULL;
}
+ force_cpy = force_cpy || assign;
}
}
if (!notfound) {
- DEBUG_o( deb(
+ DEBUG_o( Perl_deb(aTHX_
"Overloaded operator `%s'%s%s%s:\n\tmethod%s found%s in package %s%s\n",
- AMG_names[off],
+ PL_AMG_names[off],
method+assignshift==off? "" :
" (initially `",
method+assignshift==off? "" :
- AMG_names[method+assignshift],
+ PL_AMG_names[method+assignshift],
method+assignshift==off? "" : "')",
flags & AMGf_unary? "" :
lr==1 ? " for right argument": " for left argument",
flags & AMGf_unary? " for argument" : "",
HvNAME(stash),
fl? ",\n\tassignment variant used": "") );
+ }
/* Since we use shallow copy during assignment, we need
* to dublicate the contents, probably calling user-supplied
* version of copy operator
*/
- if ((method + assignshift==off
- && (assign || method==inc_amg || method==dec_amg))
- || inc_dec_ass) RvDEEPCP(left);
- }
+ /* We need to copy in following cases:
+ * a) Assignment form was called.
+ * assignshift==1, assign==T, method + 1 == off
+ * b) Increment or decrement, called directly.
+ * assignshift==0, assign==0, method + 0 == off
+ * c) Increment or decrement, translated to assignment add/subtr.
+ * assignshift==0, assign==T,
+ * force_cpy == T
+ * d) Increment or decrement, translated to nomethod.
+ * assignshift==0, assign==0,
+ * force_cpy == T
+ * e) Assignment form translated to nomethod.
+ * assignshift==1, assign==T, method + 1 != off
+ * force_cpy == T
+ */
+ /* off is method, method+assignshift, or a result of opcode substitution.
+ * In the latter case assignshift==0, so only notfound case is important.
+ */
+ if (( (method + assignshift == off)
+ && (assign || (method == inc_amg) || (method == dec_amg)))
+ || force_cpy)
+ RvDEEPCP(left);
{
dSP;
BINOP myop;
myop.op_next = Nullop;
myop.op_flags = OPf_WANT_SCALAR | OPf_STACKED;
+ PUSHSTACKi(PERLSI_OVERLOAD);
ENTER;
SAVEOP();
- op = (OP *) &myop;
- if (PERLDB_SUB && curstash != debstash)
- op->op_private |= OPpENTERSUB_DB;
+ PL_op = (OP *) &myop;
+ if (PERLDB_SUB && PL_curstash != PL_debstash)
+ PL_op->op_private |= OPpENTERSUB_DB;
PUTBACK;
- pp_pushmark(ARGS);
+ pp_pushmark();
EXTEND(SP, notfound + 5);
PUSHs(lr>0? right: left);
PUSHs(lr>0? left: right);
- PUSHs( lr > 0 ? &sv_yes : ( assign ? &sv_undef : &sv_no ));
+ PUSHs( lr > 0 ? &PL_sv_yes : ( assign ? &PL_sv_undef : &PL_sv_no ));
if (notfound) {
- PUSHs( sv_2mortal(newSVpv((char *)AMG_names[method + assignshift],0)) );
+ PUSHs( sv_2mortal(newSVpv((char *)PL_AMG_names[method + assignshift],0)));
}
PUSHs((SV*)cv);
PUTBACK;
- if (op = pp_entersub(ARGS))
- CALLRUNOPS();
+ if (PL_op = Perl_pp_entersub(aTHX))
+ CALLRUNOPS(aTHX);
LEAVE;
SPAGAIN;
res=POPs;
PUTBACK;
+ POPSTACK;
CATCH_SET(oldcatch);
if (postpr) {
case dec_amg:
SvSetSV(left,res); return left;
case not_amg:
- ans=!SvOK(res); break;
+ ans=!SvTRUE(res); break;
}
return boolSV(ans);
} else if (method==copy_amg) {
if (!SvROK(res)) {
- croak("Copy method did not return a reference");
+ Perl_croak(aTHX_ "Copy method did not return a reference");
}
return SvREFCNT_inc(SvRV(res));
} else {
}
}
}
-#endif /* OVERLOAD */
-
https://perl5.git.perl.org / perl5.git / blobdiff