/* scope.c
*
- * Copyright (c) 1991-1999, Larry Wall
+ * Copyright (c) 1991-2000, 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.
#define PERL_IN_SCOPE_C
#include "perl.h"
+#if defined(PERL_FLEXIBLE_EXCEPTIONS)
void *
-Perl_default_protect(pTHX_ int *excpt, protect_body_t body, ...)
+Perl_default_protect(pTHX_ volatile JMPENV *pcur_env, int *excpt,
+ protect_body_t body, ...)
{
- dTHR;
- dJMPENV;
+ void *ret;
va_list args;
+ va_start(args, body);
+ ret = vdefault_protect(pcur_env, excpt, body, &args);
+ va_end(args);
+ return ret;
+}
+
+void *
+Perl_vdefault_protect(pTHX_ volatile JMPENV *pcur_env, int *excpt,
+ protect_body_t body, va_list *args)
+{
+ dTHR;
int ex;
void *ret;
- DEBUG_l(deb("Setting up local jumplevel %p, was %p\n",
- &cur_env, PL_top_env));
JMPENV_PUSH(ex);
if (ex)
ret = NULL;
- else {
- va_start(args, body);
- ret = CALL_FPTR(body)(args);
- va_end(args);
- }
+ else
+ ret = CALL_FPTR(body)(aTHX_ *args);
*excpt = ex;
JMPENV_POP;
return ret;
}
+#endif
SV**
Perl_stack_grow(pTHX_ SV **sp, SV **p, int n)
Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems)
{
PERL_SI *si;
- PERL_CONTEXT *cxt;
New(56, si, 1, PERL_SI);
si->si_stack = newAV();
AvREAL_off(si->si_stack);
}
STATIC SV *
-save_scalar_at(pTHX_ SV **sptr)
+S_save_scalar_at(pTHX_ SV **sptr)
{
dTHR;
register SV *sv;
return save_scalar_at(sptr);
}
-/* Like save_svref(), but doesn't deal with magic. Can be used to
+/* 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
Perl_save_generic_svref(pTHX_ SV **sptr)
SSPUSHINT(SAVEt_GENERIC_SVREF);
}
+/* Like save_pptr(), but also Safefree()s the new value if it is different
+ * from the old one. Can be used to restore a global char* to its prior
+ * contents, freeing new value. */
+void
+Perl_save_generic_pvref(pTHX_ char **str)
+{
+ dTHR;
+ SSCHECK(3);
+ SSPUSHPTR(str);
+ SSPUSHPTR(*str);
+ SSPUSHINT(SAVEt_GENERIC_PVREF);
+}
+
void
Perl_save_gp(pTHX_ GV *gv, I32 empty)
{
if (empty) {
register GP *gp;
+ Newz(602, gp, 1, GP);
+
if (GvCVu(gv))
PL_sub_generation++; /* taking a method out of circulation */
- Newz(602, gp, 1, GP);
+ if (GvIOp(gv) && (IoFLAGS(GvIOp(gv)) & IOf_ARGV)) {
+ gp->gp_io = newIO();
+ IoFLAGS(gp->gp_io) |= IOf_ARGV|IOf_START;
+ }
GvGP(gv) = gp_ref(gp);
GvSV(gv) = NEWSV(72,0);
- GvLINE(gv) = PL_curcop->cop_line;
+ GvLINE(gv) = CopLINE(PL_curcop);
+ GvFILE(gv) = CopFILE(PL_curcop) ? CopFILE(PL_curcop) : "";
GvEGV(gv) = gv;
}
else {
av = GvAVn(gv);
if (SvMAGIC(oav)) {
SvMAGIC(av) = SvMAGIC(oav);
- SvFLAGS(av) |= SvMAGICAL(oav);
+ SvFLAGS((SV*)av) |= SvMAGICAL(oav);
SvMAGICAL_off(oav);
SvMAGIC(oav) = 0;
PL_localizing = 1;
hv = GvHVn(gv);
if (SvMAGIC(ohv)) {
SvMAGIC(hv) = SvMAGIC(ohv);
- SvFLAGS(hv) |= SvMAGICAL(ohv);
+ SvFLAGS((SV*)hv) |= SvMAGICAL(ohv);
SvMAGICAL_off(ohv);
SvMAGIC(ohv) = 0;
PL_localizing = 1;
}
void
+Perl_save_I8(pTHX_ I8 *bytep)
+{
+ dTHR;
+ SSCHECK(3);
+ SSPUSHINT(*bytep);
+ SSPUSHPTR(bytep);
+ SSPUSHINT(SAVEt_I8);
+}
+
+void
Perl_save_iv(pTHX_ IV *ivp)
{
dTHR;
}
void
+Perl_save_vptr(pTHX_ void *ptr)
+{
+ dTHR;
+ SSCHECK(3);
+ SSPUSHPTR(*(char**)ptr);
+ SSPUSHPTR(ptr);
+ SSPUSHINT(SAVEt_VPTR);
+}
+
+void
Perl_save_sptr(pTHX_ SV **sptr)
{
dTHR;
SSPUSHINT(SAVEt_SPTR);
}
+void
+Perl_save_padsv(pTHX_ PADOFFSET off)
+{
+ dTHR;
+ SSCHECK(4);
+ SSPUSHPTR(PL_curpad[off]);
+ SSPUSHPTR(PL_curpad);
+ SSPUSHLONG((long)off);
+ SSPUSHINT(SAVEt_PADSV);
+}
+
SV **
Perl_save_threadsv(pTHX_ PADOFFSET i)
{
#ifdef USE_THREADS
dTHR;
SV **svp = &THREADSV(i); /* XXX Change to save by offset */
- DEBUG_S(PerlIO_printf(PerlIO_stderr(), "save_threadsv %u: %p %p:%s\n",
- i, svp, *svp, SvPEEK(*svp)));
+ DEBUG_S(PerlIO_printf(Perl_debug_log, "save_threadsv %"UVuf": %p %p:%s\n",
+ (UV)i, svp, *svp, SvPEEK(*svp)));
save_svref(svp);
return svp;
#else
- croak("panic: save_threadsv called in non-threaded perl");
+ Perl_croak(aTHX_ "panic: save_threadsv called in non-threaded perl");
return 0;
#endif /* USE_THREADS */
}
}
void
-#ifdef PERL_OBJECT
-Perl_save_destructor(pTHX_ DESTRUCTORFUNC f, void* p)
-#else
-Perl_save_destructor(pTHX_ void (*f) (void *), void *p)
-#endif
+Perl_save_destructor(pTHX_ DESTRUCTORFUNC_NOCONTEXT_t f, void* p)
{
dTHR;
SSCHECK(3);
}
void
+Perl_save_destructor_x(pTHX_ DESTRUCTORFUNC_t f, void* p)
+{
+ dTHR;
+ SSCHECK(3);
+ SSPUSHDXPTR(f);
+ SSPUSHPTR(p);
+ SSPUSHINT(SAVEt_DESTRUCTOR_X);
+}
+
+void
Perl_save_aelem(pTHX_ AV *av, I32 idx, SV **sptr)
{
dTHR;
register AV *av;
register HV *hv;
register void* ptr;
+ register char* str;
I32 i;
if (base < -1)
- croak("panic: corrupt saved stack index");
+ Perl_croak(aTHX_ "panic: corrupt saved stack index");
while (PL_savestack_ix > base) {
switch (SSPOPINT) {
case SAVEt_ITEM: /* normal string */
ptr = &GvSV(gv);
SvREFCNT_dec(gv);
goto restore_sv;
+ case SAVEt_GENERIC_PVREF: /* generic pv */
+ str = (char*)SSPOPPTR;
+ ptr = SSPOPPTR;
+ if (*(char**)ptr != str) {
+ Safefree(*(char**)ptr);
+ *(char**)ptr = str;
+ }
+ break;
case SAVEt_GENERIC_SVREF: /* generic sv */
value = (SV*)SSPOPPTR;
ptr = SSPOPPTR;
- if (ptr) {
- sv = *(SV**)ptr;
- *(SV**)ptr = value;
- SvREFCNT_dec(sv);
- }
+ sv = *(SV**)ptr;
+ *(SV**)ptr = value;
+ SvREFCNT_dec(sv);
SvREFCNT_dec(value);
break;
case SAVEt_SVREF: /* scalar reference */
ptr = SSPOPPTR;
restore_sv:
sv = *(SV**)ptr;
- DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ DEBUG_S(PerlIO_printf(Perl_debug_log,
"restore svref: %p %p:%s -> %p:%s\n",
ptr, sv, SvPEEK(sv), value, SvPEEK(value)));
if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) &&
if (GvAV(gv)) {
AV *goner = GvAV(gv);
SvMAGIC(av) = SvMAGIC(goner);
- SvFLAGS(av) |= SvMAGICAL(goner);
+ SvFLAGS((SV*)av) |= SvMAGICAL(goner);
SvMAGICAL_off(goner);
SvMAGIC(goner) = 0;
SvREFCNT_dec(goner);
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;
ptr = SSPOPPTR;
*(SV**)ptr = (SV*)SSPOPPTR;
break;
+ case SAVEt_VPTR: /* random* reference */
case SAVEt_PPTR: /* char* reference */
ptr = SSPOPPTR;
*(char**)ptr = (char*)SSPOPPTR;
hv_clear((HV*)sv);
break;
case SVt_PVCV:
- croak("panic: leave_scope pad code");
+ Perl_croak(aTHX_ "panic: leave_scope pad code");
case SVt_RV:
case SVt_IV:
case SVt_NV:
break;
case SAVEt_DESTRUCTOR:
ptr = SSPOPPTR;
- CALLDESTRUCTOR(ptr);
+ (*SSPOPDPTR)(ptr);
+ break;
+ case SAVEt_DESTRUCTOR_X:
+ ptr = SSPOPPTR;
+ (*SSPOPDXPTR)(aTHXo_ ptr);
break;
case SAVEt_REGCONTEXT:
case SAVEt_ALLOC:
}
*(I32*)&PL_hints = (I32)SSPOPINT;
break;
+ case SAVEt_COMPPAD:
+ PL_comppad = (AV*)SSPOPPTR;
+ if (PL_comppad)
+ PL_curpad = AvARRAY(PL_comppad);
+ else
+ PL_curpad = Null(SV**);
+ break;
+ case SAVEt_PADSV:
+ {
+ PADOFFSET off = (PADOFFSET)SSPOPLONG;
+ ptr = SSPOPPTR;
+ if (ptr)
+ ((SV**)ptr)[off] = (SV*)SSPOPPTR;
+ }
+ break;
default:
- croak("panic: leave_scope inconsistency");
+ Perl_croak(aTHX_ "panic: leave_scope inconsistency");
}
}
}
PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), PL_block_type[CxTYPE(cx)]);
if (CxTYPE(cx) != CXt_SUBST) {
PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp);
- PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%lx\n", (long)cx->blk_oldcop);
+ PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_oldcop));
PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp);
PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp);
PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp);
- PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%lx\n", (long)cx->blk_oldpm);
+ PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_oldpm));
PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR");
}
switch (CxTYPE(cx)) {
case CXt_NULL:
case CXt_BLOCK:
break;
+ case CXt_FORMAT:
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_sub.cv));
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_sub.gv));
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_sub.dfoutgv));
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
+ (int)cx->blk_sub.hasargs);
+ break;
case CXt_SUB:
- PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%lx\n",
- (long)cx->blk_sub.cv);
- PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%lx\n",
- (long)cx->blk_sub.gv);
- PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%lx\n",
- (long)cx->blk_sub.dfoutgv);
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_sub.cv));
PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n",
(long)cx->blk_sub.olddepth);
PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n",
(int)cx->blk_sub.hasargs);
+ PerlIO_printf(Perl_debug_log, "BLK_SUB.LVAL = %d\n",
+ (int)cx->blk_sub.lval);
break;
case CXt_EVAL:
PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n",
PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n",
PL_op_name[cx->blk_eval.old_op_type],
PL_op_desc[cx->blk_eval.old_op_type]);
- PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
- cx->blk_eval.old_name);
- PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%lx\n",
- (long)cx->blk_eval.old_eval_root);
+ if (cx->blk_eval.old_namesv)
+ PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n",
+ SvPVX(cx->blk_eval.old_namesv));
+ PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_eval.old_eval_root));
break;
case CXt_LOOP:
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%lx\n",
- (long)cx->blk_loop.redo_op);
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%lx\n",
- (long)cx->blk_loop.next_op);
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%lx\n",
- (long)cx->blk_loop.last_op);
+ 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.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));
PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n",
(long)cx->blk_loop.iterix);
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%lx\n",
- (long)cx->blk_loop.iterary);
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%lx\n",
- (long)cx->blk_loop.itervar);
- if (cx->blk_loop.itervar)
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%lx\n",
- (long)cx->blk_loop.itersave);
- PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n",
- (long)cx->blk_loop.iterlval);
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_loop.iterary));
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%"UVxf"\n",
+ PTR2UV(CxITERVAR(cx)));
+ if (CxITERVAR(cx))
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_loop.itersave));
+ PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%"UVxf"\n",
+ PTR2UV(cx->blk_loop.iterlval));
break;
case CXt_SUBST:
(long)cx->sb_once);
PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n",
cx->sb_orig);
- PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%lx\n",
- (long)cx->sb_dstr);
- PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%lx\n",
- (long)cx->sb_targ);
- PerlIO_printf(Perl_debug_log, "SB_S = 0x%lx\n",
- (long)cx->sb_s);
- PerlIO_printf(Perl_debug_log, "SB_M = 0x%lx\n",
- (long)cx->sb_m);
- PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%lx\n",
- (long)cx->sb_strend);
- PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%lx\n",
- (long)cx->sb_rxres);
+ PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%"UVxf"\n",
+ PTR2UV(cx->sb_dstr));
+ PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%"UVxf"\n",
+ PTR2UV(cx->sb_targ));
+ PerlIO_printf(Perl_debug_log, "SB_S = 0x%"UVxf"\n",
+ PTR2UV(cx->sb_s));
+ PerlIO_printf(Perl_debug_log, "SB_M = 0x%"UVxf"\n",
+ PTR2UV(cx->sb_m));
+ PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%"UVxf"\n",
+ PTR2UV(cx->sb_strend));
+ PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%"UVxf"\n",
+ PTR2UV(cx->sb_rxres));
break;
}
#endif /* DEBUGGING */
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