/* pp_ctl.c
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, 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 WORD_ALIGN sizeof(U16)
#endif
+#define DOCATCH(o) (mustcatch ? docatch(o) : (o))
+
+static OP *docatch _((OP *o));
static OP *doeval _((int gimme));
static OP *dofindlabel _((OP *op, char *label, OP **opstack));
static void doparseform _((SV *sv));
SV *targ = cx->sb_targ;
sv_catpvn(dstr, s, cx->sb_strend - s);
+ TAINT_IF(cx->sb_rxtainted || rx->exec_tainted);
+
(void)SvOOK_off(targ);
Safefree(SvPVX(targ));
SvPVX(targ) = SvPVX(dstr);
(void)SvPOK_only(targ);
SvSETMAGIC(targ);
- if (cx->sb_rxtainted)
- SvTAINTED_on(targ);
+ SvTAINT(targ);
PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1)));
LEAVE_SCOPE(cx->sb_oldsave);
POPSUBST(cx);
while (MARK < SP) { /* This may or may not shift down one here. */
/*SUPPRESS 560*/
if (*up = *++MARK) { /* Weed out nulls. */
- if (!SvPOK(*up))
+ SvTEMP_off(*up);
+ if (!sortcop && !SvPOK(*up))
(void)sv_2pv(*up, &na);
- else
- SvTEMP_off(*up);
up++;
}
}
AV *oldstack;
CONTEXT *cx;
SV** newsp;
+ bool oldmustcatch = mustcatch;
SAVETMPS;
SAVESPTR(op);
AvREAL_off(sortstack);
av_extend(sortstack, 32);
}
+ mustcatch = TRUE;
SWITCHSTACK(curstack, sortstack);
if (sortstash != stash) {
firstgv = gv_fetchpv("a", TRUE, SVt_PV);
SAVESPTR(GvSV(firstgv));
SAVESPTR(GvSV(secondgv));
- PUSHBLOCK(cx, CXt_LOOP, stack_base);
+ PUSHBLOCK(cx, CXt_NULL, stack_base);
sortcxix = cxstack_ix;
qsort((char*)(myorigmark+1), max, sizeof(SV*), sortcv);
POPBLOCK(cx,curpm);
SWITCHSTACK(sortstack, oldstack);
+ mustcatch = oldmustcatch;
}
LEAVE;
}
if (dowarn)
warn("Exiting eval via %s", op_name[op->op_type]);
break;
+ case CXt_NULL:
+ if (dowarn)
+ warn("Exiting pseudo-block via %s", op_name[op->op_type]);
+ return -1;
case CXt_LOOP:
if (!cx->blk_loop.label ||
strNE(label, cx->blk_loop.label) ) {
if (dowarn)
warn("Exiting eval via %s", op_name[op->op_type]);
break;
+ case CXt_NULL:
+ if (dowarn)
+ warn("Exiting pseudo-block via %s", op_name[op->op_type]);
+ return -1;
case CXt_LOOP:
DEBUG_l( deb("(Found loop #%d)\n", i));
return i;
case CXt_LOOP:
POPLOOP(cx);
break;
+ case CXt_NULL:
case CXt_SUBST:
break;
}
}
PerlIO_printf(PerlIO_stderr(), "%s",message);
PerlIO_flush(PerlIO_stderr());
- if (e_tmpname) {
- if (e_fp) {
- PerlIO_close(e_fp);
- e_fp = Nullfp;
- }
- (void)UNLINK(e_tmpname);
- Safefree(e_tmpname);
- e_tmpname = Nullch;
- }
- statusvalue = SHIFTSTATUS(statusvalue);
-#ifdef VMS
- my_exit((U32)vaxc$errno?vaxc$errno:errno?errno:statusvalue?statusvalue:SS$_ABORT);
-#else
- my_exit((I32)((errno&255)?errno:((statusvalue&255)?statusvalue:255)));
-#endif
+ my_failure_exit();
+ /* NOTREACHED */
return 0;
}
const void *a;
const void *b;
{
- SV **str1 = (SV **) a;
- SV **str2 = (SV **) b;
+ SV * const *str1 = (SV * const *)a;
+ SV * const *str2 = (SV * const *)b;
I32 oldsaveix = savestack_ix;
I32 oldscopeix = scopestack_ix;
I32 result;
const void *a;
const void *b;
{
- return sv_cmp(*(SV **)a, *(SV **)b);
+ return sv_cmp(*(SV * const *)a, *(SV * const *)b);
}
static int
const void *a;
const void *b;
{
- return sv_cmp_locale(*(SV **)a, *(SV **)b);
+ return sv_cmp_locale(*(SV * const *)a, *(SV * const *)b);
}
PP(pp_reset)
PUSHBLOCK(cx, CXt_LOOP, SP);
PUSHLOOP(cx, svp, MARK);
- if (op->op_flags & OPf_STACKED) {
- AV* av = (AV*)POPs;
- cx->blk_loop.iterary = av;
- cx->blk_loop.iterix = -1;
- }
+ if (op->op_flags & OPf_STACKED)
+ cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs);
else {
cx->blk_loop.iterary = curstack;
AvFILL(curstack) = sp - stack_base;
{
dSP;
register CONTEXT *cx;
+ struct block_loop cxloop;
I32 gimme;
SV **newsp;
PMOP *newpm;
POPBLOCK(cx,newpm);
mark = newsp;
- POPLOOP(cx);
+ POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */
+
if (gimme == G_SCALAR) {
if (op->op_private & OPpLEAVE_VOID)
;
while (mark < SP)
*++newsp = sv_mortalcopy(*++mark);
}
- curpm = newpm; /* Don't pop $1 et al till now */
- sp = newsp;
+ SP = newsp;
+ PUTBACK;
+
+ POPLOOP2(); /* Stack values are safe: release loop vars ... */
+ curpm = newpm; /* ... and pop $1 et al */
+
LEAVE;
LEAVE;
- RETURN;
+ return NORMAL;
}
PP(pp_return)
dSP; dMARK;
I32 cxix;
register CONTEXT *cx;
+ struct block_sub cxsub;
+ bool popsub2 = FALSE;
I32 gimme;
SV **newsp;
PMOP *newpm;
POPBLOCK(cx,newpm);
switch (cx->cx_type) {
case CXt_SUB:
- POPSUB(cx);
+ POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
+ popsub2 = TRUE;
break;
case CXt_EVAL:
POPEVAL(cx);
if (gimme == G_SCALAR) {
if (MARK < SP)
- *++newsp = sv_mortalcopy(*SP);
+ *++newsp = (popsub2 && SvTEMP(*SP))
+ ? *SP : sv_mortalcopy(*SP);
else
*++newsp = &sv_undef;
}
else {
- while (MARK < SP)
- *++newsp = sv_mortalcopy(*++MARK);
+ while (++MARK <= SP)
+ *++newsp = (popsub2 && SvTEMP(*MARK))
+ ? *MARK : sv_mortalcopy(*MARK);
}
- curpm = newpm; /* Don't pop $1 et al till now */
stack_sp = newsp;
+ /* Stack values are safe: */
+ if (popsub2) {
+ POPSUB2(); /* release CV and @_ ... */
+ }
+ curpm = newpm; /* ... and pop $1 et al */
+
LEAVE;
return pop_return();
}
dSP;
I32 cxix;
register CONTEXT *cx;
+ struct block_loop cxloop;
+ struct block_sub cxsub;
+ I32 pop2 = 0;
I32 gimme;
I32 optype;
OP *nextop;
POPBLOCK(cx,newpm);
switch (cx->cx_type) {
case CXt_LOOP:
- POPLOOP(cx);
- nextop = cx->blk_loop.last_op->op_next;
- LEAVE;
+ POPLOOP1(cx); /* Delay POPLOOP2 until stack values are safe */
+ pop2 = CXt_LOOP;
+ nextop = cxloop.last_op->op_next;
break;
- case CXt_EVAL:
- POPEVAL(cx);
+ case CXt_SUB:
+ POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
+ pop2 = CXt_SUB;
nextop = pop_return();
break;
- case CXt_SUB:
- POPSUB(cx);
+ case CXt_EVAL:
+ POPEVAL(cx);
nextop = pop_return();
break;
default:
}
if (gimme == G_SCALAR) {
- if (mark < SP)
- *++newsp = sv_mortalcopy(*SP);
+ if (MARK < SP)
+ *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP))
+ ? *SP : sv_mortalcopy(*SP);
else
*++newsp = &sv_undef;
}
else {
- while (mark < SP)
- *++newsp = sv_mortalcopy(*++mark);
+ while (++MARK <= SP)
+ *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK))
+ ? *MARK : sv_mortalcopy(*MARK);
}
- curpm = newpm; /* Don't pop $1 et al till now */
- sp = newsp;
+ SP = newsp;
+ PUTBACK;
+
+ /* Stack values are safe: */
+ switch (pop2) {
+ case CXt_LOOP:
+ POPLOOP2(); /* release loop vars ... */
+ LEAVE;
+ break;
+ case CXt_SUB:
+ POPSUB2(); /* release CV and @_ ... */
+ break;
+ }
+ curpm = newpm; /* ... and pop $1 et al */
LEAVE;
- RETURNOP(nextop);
+ return nextop;
}
PP(pp_next)
EXTEND(stack_sp, items); /* @_ could have been extended. */
Copy(AvARRAY(av), stack_sp, items, SV*);
stack_sp += items;
+ SvREFCNT_dec(GvAV(defgv));
GvAV(defgv) = cx->blk_sub.savearray;
AvREAL_off(av);
av_clear(av);
(void)SvREFCNT_inc(cv);
else { /* save temporaries on recursion? */
if (CvDEPTH(cv) == 100 && dowarn)
- warn("Deep recursion on subroutine \"%s\"",
- GvENAME(CvGV(cv)));
+ sub_crush_depth(cv);
if (CvDEPTH(cv) > AvFILL(padlist)) {
AV *newpad = newAV();
SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]);
cx->blk_sub.savearray = GvAV(defgv);
cx->blk_sub.argarray = av;
- GvAV(defgv) = cx->blk_sub.argarray;
+ GvAV(defgv) = (AV*)SvREFCNT_inc(av);
++mark;
if (items >= AvMAX(av) + 1) {
}
}
if (perldb && curstash != debstash) {
- /* &xsub is not copying @_ */
+ /*
+ * We do not care about using sv to call CV;
+ * it's for informational purposes only.
+ */
SV *sv = GvSV(DBsub);
save_item(sv);
gv_efullname3(sv, CvGV(cv), Nullch);
- /* We do not care about using sv to call CV,
- * just for info. */
}
RETURNOP(CvSTART(cv));
}
else
gotoprobe = main_root;
break;
+ case CXt_NULL:
+ DIE("Can't \"goto\" outside a block");
+ break;
default:
if (ix)
DIE("panic: goto");
if (MAXARG < 1)
anum = 0;
- else
+ else {
anum = SvIVx(POPs);
+#ifdef VMSISH_EXIT
+ if (anum == 1 && VMSISH_EXIT)
+ anum = 0;
+#endif
+ }
my_exit(anum);
PUSHs(&sv_undef);
RETURN;
}
static OP *
+docatch(o)
+OP *o;
+{
+ int ret;
+ int oldrunlevel = runlevel;
+ OP *oldop = op;
+ Sigjmp_buf oldtop;
+
+ op = o;
+ Copy(top_env, oldtop, 1, Sigjmp_buf);
+#ifdef DEBUGGING
+ assert(mustcatch == TRUE);
+#endif
+ mustcatch = FALSE;
+ switch ((ret = Sigsetjmp(top_env,1))) {
+ default: /* topmost level handles it */
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ runlevel = oldrunlevel;
+ mustcatch = TRUE;
+ op = oldop;
+ Siglongjmp(top_env, ret);
+ /* NOTREACHED */
+ case 3:
+ if (!restartop) {
+ PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
+ break;
+ }
+ mustcatch = FALSE;
+ op = restartop;
+ restartop = 0;
+ /* FALL THROUGH */
+ case 0:
+ runops();
+ break;
+ }
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ runlevel = oldrunlevel;
+ mustcatch = TRUE;
+ op = oldop;
+ return Nullop;
+}
+
+static OP *
doeval(gimme)
int gimme;
{
SAVESPTR(compcv);
compcv = (CV*)NEWSV(1104,0);
sv_upgrade((SV *)compcv, SVt_PVCV);
- CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc(caller);
+ CvUNIQUE_on(compcv);
comppad = newAV();
comppad_name = newAV();
av_store(comppadlist, 0, (SV*)comppad_name);
av_store(comppadlist, 1, (SV*)comppad);
CvPADLIST(compcv) = comppadlist;
+
+ if (saveop->op_type != OP_REQUIRE)
+ CvOUTSIDE(compcv) = (CV*)SvREFCNT_inc(caller);
+
SAVEFREESV(compcv);
/* make sure we compile in the right package */
DEBUG_x(dump_eval());
/* Register with debugger: */
-
if (perldb && saveop->op_type == OP_REQUIRE) {
CV *cv = perl_get_cv("DB::postponed", FALSE);
-
if (cv) {
dSP;
PUSHMARK(sp);
/* compiled okay, so do it */
+ CvDEPTH(compcv) = 1;
+
SP = stack_base + POPMARK; /* pop original mark */
RETURNOP(eval_start);
}
compiling.cop_line = 0;
PUTBACK;
- return doeval(G_SCALAR);
+ return DOCATCH(doeval(G_SCALAR));
}
PP(pp_dofile)
/* switch to eval mode */
SAVESPTR(compiling.cop_filegv);
- sprintf(tmpbuf, "_<(eval %d)", ++evalseq);
+ sprintf(tmpbuf, "_<(eval %lu)", (unsigned long)++evalseq);
compiling.cop_filegv = gv_fetchfile(tmpbuf+2);
compiling.cop_line = 1;
/* XXX For C<eval "...">s within BEGIN {} blocks, this ends up
if (perldb && was != sub_generation) { /* Some subs defined here. */
strcpy(safestr, "_<(eval )"); /* Anything fake and short. */
}
- return ret;
+ return DOCATCH(ret);
}
PP(pp_leaveeval)
}
curpm = newpm; /* Don't pop $1 et al till now */
+#ifdef DEBUGGING
+ assert(CvDEPTH(compcv) == 1);
+#endif
+ CvDEPTH(compcv) = 0;
+
if (optype == OP_REQUIRE &&
!(gimme == G_SCALAR ? SvTRUE(*sp) : sp > newsp)) {
char *name = cx->blk_eval.old_name;
lex_end();
LEAVE;
+
if (!(save_flags & OPf_SPECIAL))
sv_setpv(GvSV(errgv),"");
in_eval = 1;
sv_setpv(GvSV(errgv),"");
- RETURN;
+ PUTBACK;
+ return DOCATCH(op->op_next);
}
PP(pp_leavetry)
projects / p5sagit/p5-mst-13.2.git / blobdiff