/* scope.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, 2007 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
Newx(si->si_cxstack, cxitems, PERL_CONTEXT);
/* Without any kind of initialising PUSHSUBST()
* in pp_subst() will read uninitialised heap. */
- Poison(si->si_cxstack, cxitems, PERL_CONTEXT);
+ PoisonNew(si->si_cxstack, cxitems, PERL_CONTEXT);
return si;
}
Renew(cxstack, cxstack_max + 1, PERL_CONTEXT); /* XXX should fix CXINC macro */
/* Without any kind of initialising deep enough recursion
* will end up reading uninitialised PERL_CONTEXTs. */
- Poison(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT);
+ PoisonNew(cxstack + old_max + 1, cxstack_max - old_max, PERL_CONTEXT);
return cxstack_ix + 1;
}
const I32 myfloor = PL_tmps_floor;
while (PL_tmps_ix > myfloor) { /* clean up after last statement */
SV* const sv = PL_tmps_stack[PL_tmps_ix];
- PL_tmps_stack[PL_tmps_ix--] = Nullsv;
+ PL_tmps_stack[PL_tmps_ix--] = NULL;
if (sv && sv != &PL_sv_undef) {
SvTEMP_off(sv);
SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */
{
dVAR;
SV * const osv = *sptr;
- register SV * const sv = *sptr = NEWSV(0,0);
+ register SV * const sv = *sptr = newSV(0);
if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) {
if (SvGMAGICAL(osv)) {
const bool oldtainted = PL_tainted;
SvFLAGS(osv) |= (SvFLAGS(osv) &
- (SVp_NOK|SVp_POK)) >> PRIVSHIFT;
+ (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
PL_tainted = oldtainted;
}
mg_localize(osv, sv);
Perl_save_scalar(pTHX_ GV *gv)
{
dVAR;
- SV ** const sptr = &GvSV(gv);
+ SV ** const sptr = &GvSVn(gv);
PL_localizing = 1;
SvGETMAGIC(*sptr);
PL_localizing = 0;
SSCHECK(3);
- SSPUSHPTR(SvREFCNT_inc(gv));
+ SSPUSHPTR(SvREFCNT_inc_simple(gv));
SSPUSHPTR(SvREFCNT_inc(*sptr));
SSPUSHINT(SAVEt_SV);
return save_scalar_at(sptr);
}
-SV*
-Perl_save_svref(pTHX_ SV **sptr)
-{
- dVAR;
- SvGETMAGIC(*sptr);
- SSCHECK(3);
- SSPUSHPTR(sptr);
- SSPUSHPTR(SvREFCNT_inc(*sptr));
- SSPUSHINT(SAVEt_SVREF);
- return save_scalar_at(sptr);
-}
-
/* Like save_sptr(), but also SvREFCNT_dec()s the new value. Can be used to
* restore a global SV to its prior contents, freeing new value. */
void
{
dVAR;
SSCHECK(3);
- SSPUSHPTR(str);
SSPUSHPTR(*str);
+ SSPUSHPTR(str);
SSPUSHINT(SAVEt_GENERIC_PVREF);
}
Perl_save_gp(pTHX_ GV *gv, I32 empty)
{
dVAR;
- SSGROW(6);
- SSPUSHIV((IV)SvLEN(gv));
- SvLEN_set(gv, 0); /* forget that anything was allocated here */
- SSPUSHIV((IV)SvCUR(gv));
- SSPUSHPTR(SvPVX_const(gv));
- SvPOK_off(gv);
+ SSGROW(3);
SSPUSHPTR(SvREFCNT_inc(gv));
SSPUSHPTR(GvGP(gv));
SSPUSHINT(SAVEt_GP);
if (empty) {
- register GP *gp;
-
- Newxz(gp, 1, GP);
+ GP *gp = Perl_newGP(aTHX_ gv);
if (GvCVu(gv))
PL_sub_generation++; /* taking a method out of circulation */
gp->gp_io = newIO();
IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
}
- 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 *) "";
- GvEGV(gv) = gv;
+ GvGP(gv) = gp;
}
else {
gp_ref(GvGP(gv));
SSPUSHPTR(oav);
SSPUSHINT(SAVEt_AV);
- GvAV(gv) = Null(AV*);
+ GvAV(gv) = NULL;
av = GvAVn(gv);
if (SvMAGIC(oav))
mg_localize((SV*)oav, (SV*)av);
SSPUSHPTR(ohv = GvHVn(gv));
SSPUSHINT(SAVEt_HV);
- GvHV(gv) = Null(HV*);
+ GvHV(gv) = NULL;
hv = GvHVn(gv);
if (SvMAGIC(ohv))
mg_localize((SV*)ohv, (SV*)hv);
}
void
-Perl_save_long(pTHX_ long int *longp)
-{
- dVAR;
- SSCHECK(3);
- SSPUSHLONG(*longp);
- SSPUSHPTR(longp);
- SSPUSHINT(SAVEt_LONG);
-}
-
-void
Perl_save_bool(pTHX_ bool *boolp)
{
dVAR;
}
void
-Perl_save_I32(pTHX_ I32 *intp)
-{
- dVAR;
- SSCHECK(3);
- SSPUSHINT(*intp);
- SSPUSHPTR(intp);
- SSPUSHINT(SAVEt_I32);
-}
-
-void
-Perl_save_I16(pTHX_ I16 *intp)
-{
- dVAR;
- SSCHECK(3);
- SSPUSHINT(*intp);
- SSPUSHPTR(intp);
- SSPUSHINT(SAVEt_I16);
-}
-
-void
Perl_save_I8(pTHX_ I8 *bytep)
{
dVAR;
}
void
-Perl_save_iv(pTHX_ IV *ivp)
+Perl_save_I32(pTHX_ I32 *intp)
{
dVAR;
SSCHECK(3);
- SSPUSHIV(*ivp);
- SSPUSHPTR(ivp);
- SSPUSHINT(SAVEt_IV);
+ SSPUSHINT(*intp);
+ SSPUSHPTR(intp);
+ SSPUSHINT(SAVEt_I32);
}
/* Cannot use save_sptr() to store a char* since the SV** cast will
SSPUSHINT(SAVEt_PADSV);
}
-SV **
-Perl_save_threadsv(pTHX_ PADOFFSET i)
-{
- dVAR;
- Perl_croak(aTHX_ "panic: save_threadsv called in non-threaded perl");
- PERL_UNUSED_ARG(i);
- NORETURN_FUNCTION_END;
-}
-
-void
-Perl_save_nogv(pTHX_ GV *gv)
-{
- dVAR;
- SSCHECK(2);
- SSPUSHPTR(gv);
- SSPUSHINT(SAVEt_NSTAB);
-}
-
void
Perl_save_hptr(pTHX_ HV **hptr)
{
SSCHECK(4);
SSPUSHINT(klen);
SSPUSHPTR(key);
- SSPUSHPTR(SvREFCNT_inc(hv));
+ SSPUSHPTR(SvREFCNT_inc_simple(hv));
SSPUSHINT(SAVEt_DELETE);
}
void
-Perl_save_list(pTHX_ register SV **sarg, I32 maxsarg)
-{
- dVAR;
- register I32 i;
-
- for (i = 1; i <= maxsarg; i++) {
- register SV * const sv = NEWSV(0,0);
- sv_setsv(sv,sarg[i]);
- SSCHECK(3);
- SSPUSHPTR(sarg[i]); /* remember the pointer */
- SSPUSHPTR(sv); /* remember the value */
- SSPUSHINT(SAVEt_ITEM);
- }
-}
-
-void
Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
{
dVAR;
}
void
-Perl_save_aelem(pTHX_ const AV *av, I32 idx, SV **sptr)
+Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr)
{
dVAR;
SV *sv;
SvGETMAGIC(*sptr);
SSCHECK(4);
- SSPUSHPTR(SvREFCNT_inc(av));
+ SSPUSHPTR(SvREFCNT_inc_simple(av));
SSPUSHINT(idx);
SSPUSHPTR(SvREFCNT_inc(*sptr));
SSPUSHINT(SAVEt_AELEM);
/* if it gets reified later, the restore will have the wrong refcnt */
if (!AvREAL(av) && AvREIFY(av))
- (void)SvREFCNT_inc(*sptr);
+ SvREFCNT_inc_void(*sptr);
save_scalar_at(sptr);
sv = *sptr;
/* If we're localizing a tied array element, this new sv
SV *sv;
SvGETMAGIC(*sptr);
SSCHECK(4);
- SSPUSHPTR(SvREFCNT_inc(hv));
- SSPUSHPTR(SvREFCNT_inc(key));
+ SSPUSHPTR(SvREFCNT_inc_simple(hv));
+ SSPUSHPTR(SvREFCNT_inc_simple(key));
SSPUSHPTR(SvREFCNT_inc(*sptr));
SSPUSHINT(SAVEt_HELEM);
save_scalar_at(sptr);
sv_2mortal(sv);
}
+SV*
+Perl_save_svref(pTHX_ SV **sptr)
+{
+ dVAR;
+ SvGETMAGIC(*sptr);
+ SSCHECK(3);
+ SSPUSHPTR(sptr);
+ SSPUSHPTR(SvREFCNT_inc(*sptr));
+ SSPUSHINT(SAVEt_SVREF);
+ return save_scalar_at(sptr);
+}
+
void
Perl_save_op(pTHX)
{
- (char*)PL_savestack);
register const I32 elems = 1 + ((size + pad - 1) / sizeof(*PL_savestack));
- /* SSCHECK may not be good enough */
- while (PL_savestack_ix + elems + 2 > PL_savestack_max)
- savestack_grow();
+ SSGROW(elems + 2);
PL_savestack_ix += elems;
SSPUSHINT(elems);
gv = (GV*)SSPOPPTR;
ptr = &GvSV(gv);
av = (AV*)gv; /* what to refcnt_dec */
- goto restore_sv;
+ restore_sv:
+ sv = *(SV**)ptr;
+ DEBUG_S(PerlIO_printf(Perl_debug_log,
+ "restore svref: %p %p:%s -> %p:%s\n",
+ (void*)ptr, (void*)sv, SvPEEK(sv),
+ (void*)value, SvPEEK(value)));
+ *(SV**)ptr = value;
+ SvREFCNT_dec(sv);
+ PL_localizing = 2;
+ SvSETMAGIC(value);
+ PL_localizing = 0;
+ SvREFCNT_dec(value);
+ if (av) /* actually an av, hv or gv */
+ SvREFCNT_dec(av);
+ break;
case SAVEt_GENERIC_PVREF: /* generic pv */
- str = (char*)SSPOPPTR;
ptr = SSPOPPTR;
+ str = (char*)SSPOPPTR;
if (*(char**)ptr != str) {
Safefree(*(char**)ptr);
*(char**)ptr = str;
SvREFCNT_dec(sv);
SvREFCNT_dec(value);
break;
- case SAVEt_SVREF: /* scalar reference */
- value = (SV*)SSPOPPTR;
- ptr = SSPOPPTR;
- av = NULL; /* what to refcnt_dec */
- restore_sv:
- sv = *(SV**)ptr;
- DEBUG_S(PerlIO_printf(Perl_debug_log,
- "restore svref: %p %p:%s -> %p:%s\n",
- ptr, sv, SvPEEK(sv), value, SvPEEK(value)));
- *(SV**)ptr = value;
- SvREFCNT_dec(sv);
- PL_localizing = 2;
- SvSETMAGIC(value);
- PL_localizing = 0;
- SvREFCNT_dec(value);
- if (av) /* actually an av, hv or gv */
- SvREFCNT_dec(av);
- break;
case SAVEt_AV: /* array reference */
av = (AV*)SSPOPPTR;
gv = (GV*)SSPOPPTR;
ptr = SSPOPPTR;
*(int*)ptr = (int)SSPOPINT;
break;
- case SAVEt_LONG: /* long reference */
- ptr = SSPOPPTR;
- *(long*)ptr = (long)SSPOPLONG;
- break;
case SAVEt_BOOL: /* bool reference */
ptr = SSPOPPTR;
*(bool*)ptr = (bool)SSPOPBOOL;
ptr = SSPOPPTR;
*(I32*)ptr = (I32)SSPOPINT;
break;
- case SAVEt_I16: /* I16 reference */
- ptr = SSPOPPTR;
- *(I16*)ptr = (I16)SSPOPINT;
- break;
- case SAVEt_I8: /* I8 reference */
- ptr = SSPOPPTR;
- *(I8*)ptr = (I8)SSPOPINT;
- break;
- case SAVEt_IV: /* IV reference */
- ptr = SSPOPPTR;
- *(IV*)ptr = (IV)SSPOPIV;
- break;
case SAVEt_SPTR: /* SV* reference */
ptr = SSPOPPTR;
*(SV**)ptr = (SV*)SSPOPPTR;
ptr = SSPOPPTR;
*(AV**)ptr = (AV*)SSPOPPTR;
break;
- case SAVEt_NSTAB:
- gv = (GV*)SSPOPPTR;
- (void)sv_clear((SV*)gv);
- break;
case SAVEt_GP: /* scalar reference */
ptr = SSPOPPTR;
gv = (GV*)SSPOPPTR;
- if (SvPVX_const(gv) && SvLEN(gv) > 0) {
- Safefree(SvPVX_mutable(gv));
- }
- SvPV_set(gv, (char *)SSPOPPTR);
- SvCUR_set(gv, (STRLEN)SSPOPIV);
- SvLEN_set(gv, (STRLEN)SSPOPIV);
gp_free(gv);
GvGP(gv) = (GP*)ptr;
if (GvCVu(gv))
switch (SvTYPE(sv)) { /* Console ourselves with a new value */
case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break;
case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break;
- default: *(SV**)ptr = NEWSV(0,0); break;
+ default: *(SV**)ptr = newSV(0); break;
}
SvREFCNT_dec(sv); /* Cast current value to the winds. */
/* preserve pad nature, but also mark as not live
ptr = SSPOPPTR;
hv = (HV*)ptr;
ptr = SSPOPPTR;
- (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD);
+ (void)hv_delete(hv, (char*)ptr, (I32)SSPOPINT, G_DISCARD);
SvREFCNT_dec(hv);
Safefree(ptr);
break;
- case SAVEt_DESTRUCTOR:
- ptr = SSPOPPTR;
- (*SSPOPDPTR)(ptr);
- break;
case SAVEt_DESTRUCTOR_X:
ptr = SSPOPPTR;
(*SSPOPDXPTR)(aTHX_ ptr);
i = SSPOPINT;
PL_stack_sp = PL_stack_base + i;
break;
+ case SAVEt_STACK_CXPOS: /* blk_oldsp on context stack */
+ i = SSPOPINT;
+ cxstack[i].blk_oldsp = SSPOPINT;
+ break;
case SAVEt_AELEM: /* array element */
value = (SV*)SSPOPPTR;
i = SSPOPINT;
av = (AV*)SSPOPPTR;
+ ptr = av_fetch(av,i,1);
if (!AvREAL(av) && AvREIFY(av)) /* undo reify guard */
SvREFCNT_dec(value);
- ptr = av_fetch(av,i,1);
if (ptr) {
sv = *(SV**)ptr;
if (sv && sv != &PL_sv_undef) {
if (SvTIED_mg((SV*)av, PERL_MAGIC_tied))
- (void)SvREFCNT_inc(sv);
+ SvREFCNT_inc_void_NN(sv);
goto restore_sv;
}
}
if (oval && oval != &PL_sv_undef) {
ptr = &HeVAL((HE*)ptr);
if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied))
- (void)SvREFCNT_inc(*(SV**)ptr);
+ SvREFCNT_inc_void(*(SV**)ptr);
SvREFCNT_dec(sv);
av = (AV*)hv; /* what to refcnt_dec */
goto restore_sv;
GvHV(PL_hintgv) = NULL;
}
*(I32*)&PL_hints = (I32)SSPOPINT;
+ Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash);
+ PL_compiling.cop_hints_hash = (struct refcounted_he *) SSPOPPTR;
if (PL_hints & HINT_LOCALIZE_HH) {
SvREFCNT_dec((SV*)GvHV(PL_hintgv));
GvHV(PL_hintgv) = (HV*)SSPOPPTR;
+ assert(GvHV(PL_hintgv));
+ } else if (!GvHV(PL_hintgv)) {
+ /* Need to add a new one manually, else gv_fetchpv() can
+ add one in this code:
+
+ if (SvTYPE(gv) == SVt_PVGV) {
+ if (add) {
+ GvMULTI_on(gv);
+ gv_init_sv(gv, sv_type);
+ if (*name=='!' && sv_type == SVt_PVHV && len==1)
+ require_errno(gv);
+ }
+ return gv;
+ }
+
+ and it won't have the magic set. */
+
+ HV *const hv = newHV();
+ hv_magic(hv, NULL, PERL_MAGIC_hints);
+ GvHV(PL_hintgv) = hv;
}
-
+ assert(GvHV(PL_hintgv));
break;
case SAVEt_COMPPAD:
PL_comppad = (PAD*)SSPOPPTR;
if (PL_comppad)
PL_curpad = AvARRAY(PL_comppad);
else
- PL_curpad = Null(SV**);
+ PL_curpad = NULL;
break;
case SAVEt_PADSV:
{
SvFLAGS(sv) |= val;
}
break;
+ /* These are only saved in mathoms.c */
+ case SAVEt_SVREF: /* scalar reference */
+ value = (SV*)SSPOPPTR;
+ ptr = SSPOPPTR;
+ av = NULL; /* what to refcnt_dec */
+ goto restore_sv;
+ case SAVEt_LONG: /* long reference */
+ ptr = SSPOPPTR;
+ *(long*)ptr = (long)SSPOPLONG;
+ break;
+ case SAVEt_I16: /* I16 reference */
+ ptr = SSPOPPTR;
+ *(I16*)ptr = (I16)SSPOPINT;
+ break;
+ case SAVEt_I8: /* I8 reference */
+ ptr = SSPOPPTR;
+ *(I8*)ptr = (I8)SSPOPINT;
+ break;
+ case SAVEt_IV: /* IV reference */
+ ptr = SSPOPPTR;
+ *(IV*)ptr = (IV)SSPOPIV;
+ break;
+ case SAVEt_NSTAB:
+ gv = (GV*)SSPOPPTR;
+ (void)sv_clear((SV*)gv);
+ break;
+ case SAVEt_DESTRUCTOR:
+ ptr = SSPOPPTR;
+ (*SSPOPDPTR)(ptr);
+ break;
+ case SAVEt_COP_ARYBASE:
+ ptr = SSPOPPTR;
+ i = SSPOPINT;
+ CopARYBASE_set((COP *)ptr, i);
+ break;
+ case SAVEt_COMPILE_WARNINGS:
+ ptr = SSPOPPTR;
+
+ if (!specialWARN(PL_compiling.cop_warnings))
+ PerlMemShared_free(PL_compiling.cop_warnings);
+
+ PL_compiling.cop_warnings = (STRLEN*)ptr;
+ break;
+ case SAVEt_RE_STATE:
+ {
+ const struct re_save_state *const state
+ = (struct re_save_state *)
+ (PL_savestack + PL_savestack_ix
+ - SAVESTACK_ALLOC_FOR_RE_SAVE_STATE);
+ PL_savestack_ix -= SAVESTACK_ALLOC_FOR_RE_SAVE_STATE;
+
+ if (PL_reg_start_tmp != state->re_state_reg_start_tmp) {
+ Safefree(PL_reg_start_tmp);
+ }
+ if (PL_reg_poscache != state->re_state_reg_poscache) {
+ Safefree(PL_reg_poscache);
+ }
+ Copy(state, &PL_reg_state, 1, struct re_save_state);
+ }
+ break;
+ case SAVEt_PARSER:
+ ptr = SSPOPPTR;
+ parser_free((yy_parser *) ptr);
+ break;
default:
Perl_croak(aTHX_ "panic: leave_scope inconsistency");
}
cx->blk_loop.label);
PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n",
(long)cx->blk_loop.resetsp);
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%"UVxf"\n",
- PTR2UV(cx->blk_loop.redo_op));
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.MY_OP = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_loop.my_op));
PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%"UVxf"\n",
- PTR2UV(cx->blk_loop.next_op));
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%"UVxf"\n",
- PTR2UV(cx->blk_loop.last_op));
+ PTR2UV(CX_LOOP_NEXTOP_GET(cx)));
PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
(long)cx->blk_loop.iterix);
PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
break;
}
#else
+ PERL_UNUSED_CONTEXT;
PERL_UNUSED_ARG(cx);
#endif /* DEBUGGING */
}
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