GV *
Perl_gv_fetchfile(pTHX_ const char *name)
{
- dTHR;
char smallbuf[256];
char *tmpbuf;
STRLEN tmplen;
gv_init(gv, PL_defstash, tmpbuf, tmplen, FALSE);
sv_setpv(GvSV(gv), name);
if (PERLDB_LINE)
- hv_magic(GvHVn(gv_AVadd(gv)), gv, 'L');
+ hv_magic(GvHVn(gv_AVadd(gv)), Nullgv, 'L');
}
if (tmpbuf != smallbuf)
Safefree(tmpbuf);
void
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;
Returns the glob with the given C<name> and a defined subroutine or
C<NULL>. The glob lives in the given C<stash>, or in the stashes
-accessible via @ISA and @UNIVERSAL.
+accessible via @ISA and @UNIVERSAL.
The argument C<level> should be either 0 or -1. If C<level==0>, as a
side-effect creates a glob with the given C<name> in the given C<stash>
which in the case of success contains an alias for the subroutine, and sets
-up caching info for this glob. Similarly for all the searched stashes.
+up caching info for this glob. Similarly for all the searched stashes.
This function grants C<"SUPER"> token as a postfix of the stash name. The
GV returned from C<gv_fetchmeth> may be a method cache entry, which is not
visible to Perl code. So when calling C<call_sv>, you should not use
the GV directly; instead, you should use the method's CV, which can be
-obtained from the GV with the C<GvCV> macro.
+obtained from the GV with the C<GvCV> macro.
=cut
*/
basestash = gv_stashpvn(packname, packlen, TRUE);
gvp = (GV**)hv_fetch(basestash, "ISA", 3, FALSE);
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))
Perl_croak(aTHX_ "Cannot create %s::ISA", HvNAME(stash));
SV* sv = *svp++;
HV* basestash = gv_stashsv(sv, FALSE);
if (!basestash) {
- 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));
Returns the glob which contains the subroutine to call to invoke the method
on the C<stash>. In fact in the presence of autoloading this may be the
glob for "AUTOLOAD". In this case the corresponding variable $AUTOLOAD is
-already setup.
+already setup.
The third parameter of C<gv_fetchmethod_autoload> determines whether
AUTOLOAD lookup is performed if the given method is not present: non-zero
-means yes, look for AUTOLOAD; zero means no, don't look for AUTOLOAD.
+means yes, look for AUTOLOAD; zero means no, don't look for AUTOLOAD.
Calling C<gv_fetchmethod> is equivalent to calling C<gv_fetchmethod_autoload>
-with a non-zero C<autoload> parameter.
+with a non-zero C<autoload> parameter.
These functions grant C<"SUPER"> token as a prefix of the method name. Note
that if you want to keep the returned glob for a long time, you need to
check for it being "AUTOLOAD", since at the later time the call may load a
different subroutine due to $AUTOLOAD changing its value. Use the glob
-created via a side effect to do this.
+created via a side effect to do this.
These functions have the same side-effects and as C<gv_fetchmeth> with
C<level==0>. C<name> should be writable if contains C<':'> or C<'
''>. The warning against passing the GV returned by C<gv_fetchmeth> to
-C<call_sv> apply equally to these functions.
+C<call_sv> apply equally to these functions.
=cut
*/
GV *
Perl_gv_fetchmethod_autoload(pTHX_ HV *stash, const char *name, I32 autoload)
{
- dTHR;
register const char *nend;
const char *nsplit = 0;
GV* gv;
-
+
for (nend = name; *nend; nend++) {
if (*nend == '\'')
nsplit = nend;
GV*
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 (ckWARN(WARN_DEPRECATED) && !method &&
+ 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",
GV *
Perl_gv_fetchpv(pTHX_ const char *nambeg, I32 add, I32 sv_type)
{
- dTHR;
register const char *name = nambeg;
register GV *gv = 0;
GV**gvp;
if (strEQ(name, "OVERLOAD")) {
HV* hv = GvHVn(gv);
GvMULTI_on(gv);
- hv_magic(hv, gv, 'A');
+ hv_magic(hv, Nullgv, 'A');
}
break;
case 'S':
}
GvMULTI_on(gv);
hv = GvHVn(gv);
- hv_magic(hv, gv, 'S');
+ hv_magic(hv, Nullgv, 'S');
for (i = 1; PL_sig_name[i]; i++) {
SV ** init;
init = hv_fetch(hv, PL_sig_name[i], strlen(PL_sig_name[i]), 1);
else {
AV* av = GvAVn(gv);
sv_magic((SV*)av, Nullsv, 'D', Nullch, 0);
+ SvREADONLY_on(av);
}
goto magicalize;
case '#':
case ',':
case '\\':
case '/':
- case '|':
case '\001': /* $^A */
case '\003': /* $^C */
case '\004': /* $^D */
case '\006': /* $^F */
case '\010': /* $^H */
case '\011': /* $^I, NOT \t in EBCDIC */
- case '\017': /* $^O */
case '\020': /* $^P */
case '\024': /* $^T */
if (len > 1)
break;
goto magicalize;
+ case '|':
+ if (len > 1)
+ break;
+ sv_setiv(GvSV(gv), (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0);
+ goto magicalize;
+ case '\017': /* $^O & $^OPEN */
+ if (len > 1 && strNE(name, "\017PEN"))
+ break;
+ goto magicalize;
case '\023': /* $^S */
if (len > 1)
break;
else {
AV* av = GvAVn(gv);
sv_magic((SV*)av, (SV*)av, 'D', Nullch, 0);
+ SvREADONLY_on(av);
}
/* FALL THROUGH */
case '1':
if (len == 1) {
SV *sv = GvSV(gv);
(void)SvUPGRADE(sv, SVt_PVNV);
+ Perl_sv_setpvf(aTHX_ sv,
+#if defined(PERL_SUBVERSION) && (PERL_SUBVERSION > 0)
+ "%8.6"
+#else
+ "%5.3"
+#endif
+ NVff,
+ SvNVX(PL_patchlevel));
SvNVX(sv) = SvNVX(PL_patchlevel);
SvNOK_on(sv);
- (void)SvPV_nolen(sv);
SvREADONLY_on(sv);
}
break;
IO *
Perl_newIO(pTHX)
{
- dTHR;
IO *io;
GV *iogv;
void
Perl_gv_check(pTHX_ HV *stash)
{
- dTHR;
register HE *entry;
register I32 i;
register GV *gv;
void
Perl_gp_free(pTHX_ GV *gv)
{
- dTHR;
GP* gp;
if (!gv || !(gp = GvGP(gv)))
AV *GvAVn(gv)
register GV *gv;
{
- if (GvGP(gv)->gp_av)
+ if (GvGP(gv)->gp_av)
return GvGP(gv)->gp_av;
else
return GvGP(gv_AVadd(gv))->gp_av;
bool
Perl_Gv_AMupdate(pTHX_ HV *stash)
{
- dTHR;
GV* gv;
CV* cv;
MAGIC* mg=mg_find((SV*)stash,'c');
AMT *amtp = (mg) ? (AMT*)mg->mg_ptr: (AMT *) NULL;
AMT amt;
STRLEN n_a;
-#ifdef OVERLOAD_VIA_HASH
- GV** gvp;
- HV* hv;
-#endif
if (mg && amtp->was_ok_am == PL_amagic_generation
&& amtp->was_ok_sub == PL_sub_generation)
- return AMT_AMAGIC(amtp);
+ return AMT_OVERLOADED(amtp);
if (amtp && AMT_AMAGIC(amtp)) { /* Have table. */
int i;
for (i=1; i<NofAMmeth; i++) {
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*)&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 PL_AMG_names */
-
- 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 *)PL_AMG_names[i];
-
- svp = (SV**)hv_fetch(hv, cp, strlen(cp), FALSE);
- if (svp && ((sv = *svp) != &PL_sv_undef)) {
- switch (SvTYPE(sv)) {
- default:
- if (!SvROK(sv)) {
- if (!SvOK(sv)) break;
- gv = gv_fetchmethod(stash, SvPV(sv, n_a));
- if (gv) cv = GvCV(gv);
- break;
- }
- cv = (CV*)SvRV(sv);
- if (SvTYPE(cv) == SVt_PVCV)
- break;
- /* FALL THROUGH */
- case SVt_PVHV:
- case SVt_PVAV:
- 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, FALSE);
- break;
- }
- if (cv) filled=1;
- else {
- Perl_croak(aTHX_ "Method for operation %s not found in package %.256s during blessing\n",
- cp,HvNAME(stash));
- return FALSE;
- }
- }
-#else
{
- int filled = 0;
- int i;
+ int filled = 0, have_ovl = 0;
+ int i, lim = 1;
const char *cp;
SV* sv = NULL;
/* Work with "fallback" key, which we assume to be first in PL_AMG_names */
- if ((cp = PL_AMG_names[0])) {
- /* Try to find via inheritance. */
- gv = gv_fetchmeth(stash, "()", 2, -1); /* A cookie: "()". */
- if (gv)
- sv = GvSV(gv);
-
- if (!gv)
- goto no_table;
- else if (SvTRUE(sv))
- amt.fallback=AMGfallYES;
- else if (SvOK(sv))
- amt.fallback=AMGfallNEVER;
- }
+ /* Try to find via inheritance. */
+ gv = gv_fetchmeth(stash, PL_AMG_names[0], 2, -1);
+ if (gv)
+ sv = GvSV(gv);
+
+ if (!gv)
+ lim = DESTROY_amg; /* Skip overloading entries. */
+ else if (SvTRUE(sv))
+ amt.fallback=AMGfallYES;
+ else if (SvOK(sv))
+ amt.fallback=AMGfallNEVER;
+
+ for (i = 1; i < lim; i++)
+ amt.table[i] = Nullcv;
+ for (; i < NofAMmeth; i++) {
+ char *cooky = (char*)PL_AMG_names[i];
+ /* Human-readable form, for debugging: */
+ char *cp = (i >= DESTROY_amg ? cooky : AMG_id2name(i));
+ STRLEN l = strlen(cooky);
- for (i = 1; i < NofAMmeth; i++) {
- 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);
+ gv = gv_fetchmeth(stash, cooky, l, -1);
cv = 0;
- if(gv && (cv = GvCV(gv))) {
+ if (gv && (cv = GvCV(gv))) {
if (GvNAMELEN(CvGV(cv)) == 3 && strEQ(GvNAME(CvGV(cv)), "nil")
&& strEQ(HvNAME(GvSTASH(CvGV(cv))), "overload")) {
/* GvSV contains the name of the method. */
GV *ngv;
- DEBUG_o( Perl_deb(aTHX_ "Resolving method `%.256s' for overloaded `%s' in package `%.256s'\n",
+ 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))
+ if (!SvPOK(GvSV(gv))
|| !(ngv = gv_fetchmethod_autoload(stash, SvPVX(GvSV(gv)),
FALSE)))
{
/* Can be an import stub (created by `can'). */
if (GvCVGEN(gv)) {
- Perl_croak(aTHX_ "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
- Perl_croak(aTHX_ "Can't 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));
}
cp, HvNAME(stash), HvNAME(GvSTASH(CvGV(cv))),
GvNAME(CvGV(cv))) );
filled = 1;
+ if (i < DESTROY_amg)
+ have_ovl = 1;
}
-#endif
amt.table[i]=(CV*)SvREFCNT_inc(cv);
}
if (filled) {
AMT_AMAGIC_on(&amt);
+ if (have_ovl)
+ AMT_OVERLOADED_on(&amt);
sv_magic((SV*)stash, 0, 'c', (char*)&amt, sizeof(AMT));
- return TRUE;
+ return have_ovl;
}
}
/* Here we have no table: */
return FALSE;
}
+
+CV*
+Perl_gv_handler(pTHX_ HV *stash, I32 id)
+{
+ dTHR;
+ MAGIC *mg;
+ AMT *amtp;
+
+ if (!stash)
+ return Nullcv;
+ mg = mg_find((SV*)stash,'c');
+ if (!mg) {
+ do_update:
+ Gv_AMupdate(stash);
+ mg = mg_find((SV*)stash,'c');
+ }
+ amtp = (AMT*)mg->mg_ptr;
+ if ( amtp->was_ok_am != PL_amagic_generation
+ || amtp->was_ok_sub != PL_sub_generation )
+ goto do_update;
+ if (AMT_AMAGIC(amtp))
+ return amtp->table[id];
+ return Nullcv;
+}
+
+
SV*
Perl_amagic_call(pTHX_ SV *left, SV *right, int method, int flags)
{
- dTHR;
- MAGIC *mg;
- CV *cv;
+ MAGIC *mg;
+ CV *cv;
CV **cvp=NULL, **ocvp=NULL;
AMT *amtp, *oamtp;
int fl=0, off, off1, lr=0, assign=AMGf_assign & flags, notfound=0;
HV* stash;
if (!(AMGf_noleft & flags) && SvAMAGIC(left)
&& (mg = mg_find((SV*)(stash=SvSTASH(SvRV(left))),'c'))
- && (ocvp = cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr)
+ && (ocvp = cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr)
? (oamtp = amtp = (AMT*)mg->mg_ptr)->table
: (CV **) NULL))
- && ((cv = cvp[off=method+assignshift])
+ && ((cv = cvp[off=method+assignshift])
|| (assign && amtp->fallback > AMGfallNEVER && /* fallback to
* usual method */
(fl = 1, cv = cvp[off=method])))) {
(void)((cv = cvp[off=numer_amg]) || (cv = cvp[off=bool__amg]));
break;
case not_amg:
- (void)((cv = cvp[off=bool__amg])
+ (void)((cv = cvp[off=bool__amg])
|| (cv = cvp[off=numer_amg])
|| (cv = cvp[off=string_amg]));
postpr = 1;
}
break;
case abs_amg:
- if ((cvp[off1=lt_amg] || cvp[off1=ncmp_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));
if (off1==lt_amg) {
}
break;
case iter_amg: /* XXXX Eventually should do to_gv. */
+ /* FAIL safe */
+ return NULL; /* Delegate operation to standard mechanisms. */
+ break;
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. */
+ return left; /* Delegate operation to standard mechanisms. */
break;
default:
goto not_found;
if (!cv) goto not_found;
} else if (!(AMGf_noright & flags) && SvAMAGIC(right)
&& (mg = mg_find((SV*)(stash=SvSTASH(SvRV(right))),'c'))
- && (cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr)
+ && (cvp = (AMT_AMAGIC((AMT*)mg->mg_ptr)
? (amtp = (AMT*)mg->mg_ptr)->table
: (CV **) NULL))
&& (cv = cvp[off=method])) { /* Method for right
* argument found */
lr=1;
- } else if (((ocvp && oamtp->fallback > AMGfallNEVER
- && (cvp=ocvp) && (lr = -1))
+ } else if (((ocvp && oamtp->fallback > AMGfallNEVER
+ && (cvp=ocvp) && (lr = -1))
|| (cvp && amtp->fallback > AMGfallNEVER && (lr=1)))
&& !(flags & AMGf_unary)) {
/* We look for substitution for
}
} else {
not_found: /* No method found, either report or croak */
+ switch (method) {
+ case to_sv_amg:
+ case to_av_amg:
+ case to_hv_amg:
+ case to_gv_amg:
+ case to_cv_amg:
+ /* FAIL safe */
+ return left; /* Delegate operation to standard mechanisms. */
+ break;
+ }
if (ocvp && (cv=ocvp[nomethod_amg])) { /* Call report method */
notfound = 1; lr = -1;
} else if (cvp && (cv=cvp[nomethod_amg])) {
} else {
SV *msg;
if (off==-1) off=method;
- msg = sv_2mortal(Perl_newSVpvf(aTHX_
+ msg = sv_2mortal(Perl_newSVpvf(aTHX_
"Operation `%s': no method found,%sargument %s%s%s%s",
- PL_AMG_names[method + assignshift],
+ AMG_id2name(method + assignshift),
(flags & AMGf_unary ? " " : "\n\tleft "),
- SvAMAGIC(left)?
+ SvAMAGIC(left)?
"in overloaded package ":
"has no overloaded magic",
- SvAMAGIC(left)?
+ SvAMAGIC(left)?
HvNAME(SvSTASH(SvRV(left))):
"",
- SvAMAGIC(right)?
+ SvAMAGIC(right)?
",\n\tright argument in overloaded package ":
- (flags & AMGf_unary
+ (flags & AMGf_unary
? ""
: ",\n\tright argument has no overloaded magic"),
- SvAMAGIC(right)?
+ SvAMAGIC(right)?
HvNAME(SvSTASH(SvRV(right))):
""));
if (amtp && amtp->fallback >= AMGfallYES) {
}
}
if (!notfound) {
- DEBUG_o( Perl_deb(aTHX_
+ DEBUG_o( Perl_deb(aTHX_
"Overloaded operator `%s'%s%s%s:\n\tmethod%s found%s in package %s%s\n",
- PL_AMG_names[off],
+ AMG_id2name(off),
method+assignshift==off? "" :
" (initially `",
method+assignshift==off? "" :
- PL_AMG_names[method+assignshift],
+ AMG_id2name(method+assignshift),
method+assignshift==off? "" : "')",
flags & AMGf_unary? "" :
lr==1 ? " for right argument": " for left argument",
flags & AMGf_unary? " for argument" : "",
- HvNAME(stash),
+ HvNAME(stash),
fl? ",\n\tassignment variant used": "") );
}
/* Since we use shallow copy during assignment, we need
* 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,
+ * assignshift==0, assign==T,
* force_cpy == T
* d) Increment or decrement, translated to nomethod.
- * assignshift==0, assign==0,
+ * assignshift==0, assign==0,
* force_cpy == T
* e) Assignment form translated to nomethod.
* assignshift==1, assign==T, method + 1 != off
PUSHs(lr>0? left: right);
PUSHs( lr > 0 ? &PL_sv_yes : ( assign ? &PL_sv_undef : &PL_sv_no ));
if (notfound) {
- PUSHs( sv_2mortal(newSVpv((char *)PL_AMG_names[method + assignshift],0)));
+ PUSHs( sv_2mortal(newSVpv(AMG_id2name(method + assignshift),0)));
}
PUSHs((SV*)cv);
PUTBACK;
if (len == 3 && strEQ(name, "SIG"))
goto yes;
break;
+ case '\017': /* $^O & $^OPEN */
+ if (len == 1
+ || (len == 4 && strEQ(name, "\027PEN")))
+ {
+ goto yes;
+ }
+ break;
case '\027': /* $^W & $^WARNING_BITS */
if (len == 1
|| (len == 12 && strEQ(name, "\027ARNING_BITS"))
case '\010': /* $^H */
case '\011': /* $^I, NOT \t in EBCDIC */
case '\014': /* $^L */
- case '\017': /* $^O */
case '\020': /* $^P */
case '\023': /* $^S */
case '\024': /* $^T */
projects / p5sagit/p5-mst-13.2.git / blobdiff