#define tryAMAGICregexp(rx) \
STMT_START { \
+ SvGETMAGIC(rx); \
if (SvROK(rx) && SvAMAGIC(rx)) { \
SV *sv = AMG_CALLun(rx, regexp); \
if (sv) { \
sv_setpvs(tmpstr, "");
while (++MARK <= SP) {
SV *msv = *MARK;
- if (PL_amagic_generation) {
- SV *sv;
+ SV *sv;
- tryAMAGICregexp(msv);
+ tryAMAGICregexp(msv);
- if ((SvAMAGIC(tmpstr) || SvAMAGIC(msv)) &&
- (sv = amagic_call(tmpstr, msv, concat_amg, AMGf_assign)))
- {
- sv_setsv(tmpstr, sv);
- continue;
- }
+ if ((SvAMAGIC(tmpstr) || SvAMAGIC(msv)) &&
+ (sv = amagic_call(tmpstr, msv, concat_amg, AMGf_assign)))
+ {
+ sv_setsv(tmpstr, sv);
+ continue;
}
- sv_catsv(tmpstr, msv);
+ sv_catsv_nomg(tmpstr, msv);
}
SvSETMAGIC(tmpstr);
SP = ORIGMARK;
PM_SETRE(pm, re);
}
else {
- STRLEN len;
- const char *t = SvOK(tmpstr) ? SvPV_const(tmpstr, len) : "";
+ STRLEN len = 0;
+ const char *t = SvOK(tmpstr) ? SvPV_nomg_const(tmpstr, len) : "";
+
re = PM_GETRE(pm);
assert (re != (REGEXP*) &PL_sv_undef);
PM_SETRE(pm, NULL); /* crucial if regcomp aborts */
#endif
} else if (PL_curcop->cop_hints_hash) {
- SV *ptr = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, 0,
- "regcomp", 7, 0, 0);
+ SV *ptr = cop_hints_fetch_pvs(PL_curcop, "regcomp", 0);
if (ptr && SvIOK(ptr) && SvIV(ptr))
eng = INT2PTR(regexp_engine*,SvIV(ptr));
}
const char *const p = SvPV(tmpstr, len);
tmpstr = newSVpvn_flags(p, len, SVs_TEMP);
}
+ else if (SvAMAGIC(tmpstr)) {
+ /* make a copy to avoid extra stringifies */
+ tmpstr = newSVpvn_flags(t, len, SVs_TEMP | SvUTF8(tmpstr));
+ }
+
+ /* If it is gmagical, create a mortal copy, but without calling
+ get-magic, as we have already done that. */
+ if(SvGMAGICAL(tmpstr)) {
+ SV *mortalcopy = sv_newmortal();
+ sv_setsv_flags(mortalcopy, tmpstr, 0);
+ tmpstr = mortalcopy;
+ }
- if (eng)
+ if (eng)
PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags));
- else
+ else
PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags));
PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed
register REGEXP * const rx = cx->sb_rx;
SV *nsv = NULL;
REGEXP *old = PM_GETRE(pm);
+
+ PERL_ASYNC_CHECK();
+
if(old != rx) {
if(old)
ReREFCNT_dec(old);
if (cx->sb_iters > cx->sb_maxiters)
DIE(aTHX_ "Substitution loop");
+ SvGETMAGIC(TOPs); /* possibly clear taint on $1 etc: #67962 */
+
if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs))
cx->sb_rxtainted |= 2;
- sv_catsv(dstr, POPs);
+ sv_catsv_nomg(dstr, POPs);
/* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */
s -= RX_GOFS(rx);
SvPV_set(dstr, NULL);
TAINT_IF(cx->sb_rxtainted & 1);
- mPUSHi(saviters - 1);
+ if (pm->op_pmflags & PMf_NONDESTRUCT)
+ PUSHs(targ);
+ else
+ mPUSHi(saviters - 1);
(void)SvPOK_only_UTF8(targ);
TAINT_IF(cx->sb_rxtainted);
(void)ReREFCNT_inc(rx);
cx->sb_rxtainted |= RX_MATCH_TAINTED(rx);
rxres_save(&cx->sb_rxres, rx);
+ PL_curpm = pm;
RETURNOP(pm->op_pmstashstartu.op_pmreplstart);
}
/* copy the new items down to the destination list */
dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1;
if (gimme == G_ARRAY) {
- while (items-- > 0)
- *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs);
+ /* add returned items to the collection (making mortal copies
+ * if necessary), then clear the current temps stack frame
+ * *except* for those items. We do this splicing the items
+ * into the start of the tmps frame (so some items may be on
+ * the tmps stack twice), then moving PL_tmps_floor above
+ * them, then freeing the frame. That way, the only tmps that
+ * accumulate over iterations are the return values for map.
+ * We have to do to this way so that everything gets correctly
+ * freed if we die during the map.
+ */
+ I32 tmpsbase;
+ I32 i = items;
+ /* make space for the slice */
+ EXTEND_MORTAL(items);
+ tmpsbase = PL_tmps_floor + 1;
+ Move(PL_tmps_stack + tmpsbase,
+ PL_tmps_stack + tmpsbase + items,
+ PL_tmps_ix - PL_tmps_floor,
+ SV*);
+ PL_tmps_ix += items;
+
+ while (i-- > 0) {
+ SV *sv = POPs;
+ if (!SvTEMP(sv))
+ sv = sv_mortalcopy(sv);
+ *dst-- = sv;
+ PL_tmps_stack[tmpsbase++] = SvREFCNT_inc_simple(sv);
+ }
+ /* clear the stack frame except for the items */
+ PL_tmps_floor += items;
+ FREETMPS;
+ /* FREETMPS may have cleared the TEMP flag on some of the items */
+ i = items;
+ while (i-- > 0)
+ SvTEMP_on(PL_tmps_stack[--tmpsbase]);
}
else {
/* scalar context: we don't care about which values map returns
(void)POPs;
*dst-- = &PL_sv_undef;
}
+ FREETMPS;
}
}
+ else {
+ FREETMPS;
+ }
LEAVE_with_name("grep_item"); /* exit inner scope */
/* All done yet? */
{
const char *cx_label = CxLABEL(cx);
if (!cx_label || strNE(label, cx_label) ) {
- DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n",
+ DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n",
(long)i, cx_label));
continue;
}
- DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label));
+ DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label));
return i;
}
}
case CXt_EVAL:
case CXt_SUB:
case CXt_FORMAT:
- DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i));
+ DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i));
return i;
}
}
default:
continue;
case CXt_EVAL:
- DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i));
+ DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i));
return i;
}
}
case CXt_LOOP_LAZYSV:
case CXt_LOOP_FOR:
case CXt_LOOP_PLAIN:
- DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i));
+ DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i));
return i;
}
}
default:
continue;
case CXt_GIVEN:
- DEBUG_l( Perl_deb(aTHX_ "(Found given #%ld)\n", (long)i));
+ DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i));
return i;
case CXt_LOOP_PLAIN:
assert(!CxFOREACHDEF(cx));
case CXt_LOOP_LAZYSV:
case CXt_LOOP_FOR:
if (CxFOREACHDEF(cx)) {
- DEBUG_l( Perl_deb(aTHX_ "(Found foreach #%ld)\n", (long)i));
+ DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i));
return i;
}
}
default:
continue;
case CXt_WHEN:
- DEBUG_l( Perl_deb(aTHX_ "(Found when #%ld)\n", (long)i));
+ DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i));
return i;
}
}
while (cxstack_ix > cxix) {
SV *sv;
register PERL_CONTEXT *cx = &cxstack[cxstack_ix];
- DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n",
- (long) cxstack_ix, PL_block_type[CxTYPE(cx)]));
+ DEBUG_CX("UNWIND"); \
/* Note: we don't need to restore the base context info till the end. */
switch (CxTYPE(cx)) {
case CXt_SUBST:
PERL_ARGS_ASSERT_QERROR;
- if (PL_in_eval)
- sv_catsv(ERRSV, err);
+ if (PL_in_eval) {
+ if (PL_in_eval & EVAL_KEEPERR) {
+ Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s",
+ SvPV_nolen_const(err));
+ }
+ else
+ sv_catsv(ERRSV, err);
+ }
else if (PL_errors)
sv_catsv(PL_errors, err);
else
}
void
-Perl_die_where(pTHX_ SV *msv)
+Perl_die_unwind(pTHX_ SV *msv)
{
dVAR;
+ SV *exceptsv = sv_mortalcopy(msv);
+ U8 in_eval = PL_in_eval;
+ PERL_ARGS_ASSERT_DIE_UNWIND;
- if (PL_in_eval) {
+ if (in_eval) {
I32 cxix;
I32 gimme;
- if (msv) {
- if (PL_in_eval & EVAL_KEEPERR) {
- static const char prefix[] = "\t(in cleanup) ";
- SV * const err = ERRSV;
- const char *e = NULL;
- if (!SvPOK(err))
- sv_setpvs(err,"");
- else if (SvCUR(err) >= sizeof(prefix)+SvCUR(msv)-1) {
- STRLEN len;
- STRLEN msglen;
- const char* message = SvPV_const(msv, msglen);
- e = SvPV_const(err, len);
- e += len - msglen;
- if (*e != *message || strNE(e,message))
- e = NULL;
- }
- if (!e) {
- STRLEN start;
- SvGROW(err, SvCUR(err)+sizeof(prefix)+SvCUR(msv));
- sv_catpvn(err, prefix, sizeof(prefix)-1);
- sv_catsv(err, msv);
- start = SvCUR(err)-SvCUR(msv)-sizeof(prefix)+1;
- Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "%s",
- SvPVX_const(err)+start);
- }
- }
- else {
- STRLEN msglen;
- const char* message = SvPV_const(msv, msglen);
- sv_setpvn(ERRSV, message, msglen);
- SvFLAGS(ERRSV) |= SvFLAGS(msv) & SVf_UTF8;
- }
- }
-
while ((cxix = dopoptoeval(cxstack_ix)) < 0
&& PL_curstackinfo->si_prev)
{
if (cxix >= 0) {
I32 optype;
+ SV *namesv;
register PERL_CONTEXT *cx;
SV **newsp;
+ COP *oldcop;
+ JMPENV *restartjmpenv;
+ OP *restartop;
if (cxix < cxstack_ix)
dounwind(cxix);
POPBLOCK(cx,PL_curpm);
if (CxTYPE(cx) != CXt_EVAL) {
STRLEN msglen;
- const char* message = SvPVx_const( msv ? msv : ERRSV, msglen);
+ const char* message = SvPVx_const(exceptsv, msglen);
PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11);
PerlIO_write(Perl_error_log, message, msglen);
my_exit(1);
}
POPEVAL(cx);
+ namesv = cx->blk_eval.old_namesv;
+ oldcop = cx->blk_oldcop;
+ restartjmpenv = cx->blk_eval.cur_top_env;
+ restartop = cx->blk_eval.retop;
if (gimme == G_SCALAR)
*++newsp = &PL_sv_undef;
* XXX it might be better to find a way to avoid messing with
* PL_curcop in save_re_context() instead, but this is a more
* minimal fix --GSAR */
- PL_curcop = cx->blk_oldcop;
+ PL_curcop = oldcop;
if (optype == OP_REQUIRE) {
- const char* const msg = SvPVx_nolen_const(ERRSV);
- SV * const nsv = cx->blk_eval.old_namesv;
- (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv),
+ const char* const msg = SvPVx_nolen_const(exceptsv);
+ (void)hv_store(GvHVn(PL_incgv),
+ SvPVX_const(namesv), SvCUR(namesv),
&PL_sv_undef, 0);
- DIE(aTHX_ "%sCompilation failed in require",
- *msg ? msg : "Unknown error\n");
+ /* note that unlike pp_entereval, pp_require isn't
+ * supposed to trap errors. So now that we've popped the
+ * EVAL that pp_require pushed, and processed the error
+ * message, rethrow the error */
+ Perl_croak(aTHX_ "%sCompilation failed in require",
+ *msg ? msg : "Unknown error\n");
+ }
+ if (in_eval & EVAL_KEEPERR) {
+ Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s",
+ SvPV_nolen_const(exceptsv));
+ }
+ else {
+ sv_setsv(ERRSV, exceptsv);
}
- assert(CxTYPE(cx) == CXt_EVAL);
- PL_restartop = cx->blk_eval.retop;
+ PL_restartjmpenv = restartjmpenv;
+ PL_restartop = restartop;
JMPENV_JUMP(3);
/* NOTREACHED */
}
}
- write_to_stderr( msv ? msv : ERRSV );
+ write_to_stderr(exceptsv);
my_failure_exit();
/* NOTREACHED */
}
RETSETNO;
}
-PP(pp_caller)
+/*
+=for apidoc caller_cx
+
+The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The
+returned C<PERL_CONTEXT> structure can be interrogated to find all the
+information returned to Perl by C<caller>. Note that XSUBs don't get a
+stack frame, so C<caller_cx(0, NULL)> will return information for the
+immediately-surrounding Perl code.
+
+This function skips over the automatic calls to C<&DB::sub> made on the
+behalf of the debugger. If the stack frame requested was a sub called by
+C<DB::sub>, the return value will be the frame for the call to
+C<DB::sub>, since that has the correct line number/etc. for the call
+site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the
+frame for the sub call itself.
+
+=cut
+*/
+
+const PERL_CONTEXT *
+Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp)
{
- dVAR;
- dSP;
register I32 cxix = dopoptosub(cxstack_ix);
register const PERL_CONTEXT *cx;
register const PERL_CONTEXT *ccstack = cxstack;
const PERL_SI *top_si = PL_curstackinfo;
- I32 gimme;
- const char *stashname;
- I32 count = 0;
-
- if (MAXARG)
- count = POPi;
for (;;) {
/* we may be in a higher stacklevel, so dig down deeper */
ccstack = top_si->si_cxstack;
cxix = dopoptosub_at(ccstack, top_si->si_cxix);
}
- if (cxix < 0) {
- if (GIMME != G_ARRAY) {
- EXTEND(SP, 1);
- RETPUSHUNDEF;
- }
- RETURN;
- }
+ if (cxix < 0)
+ return NULL;
/* caller() should not report the automatic calls to &DB::sub */
if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 &&
ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub))
}
cx = &ccstack[cxix];
+ if (dbcxp) *dbcxp = cx;
+
if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) {
const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1);
/* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the
cx = &ccstack[dbcxix];
}
+ return cx;
+}
+
+PP(pp_caller)
+{
+ dVAR;
+ dSP;
+ register const PERL_CONTEXT *cx;
+ const PERL_CONTEXT *dbcx;
+ I32 gimme;
+ const char *stashname;
+ I32 count = 0;
+
+ if (MAXARG)
+ count = POPi;
+
+ cx = caller_cx(count, &dbcx);
+ if (!cx) {
+ if (GIMME != G_ARRAY) {
+ EXTEND(SP, 1);
+ RETPUSHUNDEF;
+ }
+ RETURN;
+ }
+
stashname = CopSTASHPV(cx->blk_oldcop);
if (GIMME != G_ARRAY) {
EXTEND(SP, 1);
if (!MAXARG)
RETURN;
if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) {
- GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv);
+ GV * const cvgv = CvGV(dbcx->blk_sub.cv);
/* So is ccstack[dbcxix]. */
if (isGV(cvgv)) {
SV * const sv = newSV(0);
AV * const ary = cx->blk_sub.argarray;
const int off = AvARRAY(ary) - AvALLOC(ary);
- if (!PL_dbargs) {
- PL_dbargs = GvAV(gv_AVadd(gv_fetchpvs("DB::args", GV_ADDMULTI,
- SVt_PVAV)));
- AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */
- }
+ if (!PL_dbargs)
+ Perl_init_dbargs(aTHX);
if (AvMAX(PL_dbargs) < AvFILLp(ary) + off)
av_extend(PL_dbargs, AvFILLp(ary) + off);
}
PUSHs(cx->blk_oldcop->cop_hints_hash ?
- sv_2mortal(newRV_noinc(
- MUTABLE_SV(Perl_refcounted_he_chain_2hv(aTHX_
- cx->blk_oldcop->cop_hints_hash))))
+ sv_2mortal(newRV_noinc(MUTABLE_SV(cop_hints_2hv(cx->blk_oldcop, 0))))
: &PL_sv_undef);
RETURN;
}
PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp;
FREETMPS;
+ PERL_ASYNC_CHECK();
+
if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */
|| SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace))
{
dVAR; dSP; dMARK;
register PERL_CONTEXT *cx;
const I32 gimme = GIMME_V;
- SV **svp;
+ void *itervar; /* location of the iteration variable */
U8 cxtype = CXt_LOOP_FOR;
-#ifdef USE_ITHREADS
- PAD *iterdata;
-#endif
ENTER_with_name("loop1");
SAVETMPS;
- if (PL_op->op_targ) {
- if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */
+ if (PL_op->op_targ) { /* "my" variable */
+ if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */
SvPADSTALE_off(PAD_SVl(PL_op->op_targ));
SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ),
SVs_PADSTALE, SVs_PADSTALE);
}
SAVEPADSVANDMORTALIZE(PL_op->op_targ);
-#ifndef USE_ITHREADS
- svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */
+#ifdef USE_ITHREADS
+ itervar = PL_comppad;
#else
- iterdata = NULL;
+ itervar = &PAD_SVl(PL_op->op_targ);
#endif
}
- else {
+ else { /* symbol table variable */
GV * const gv = MUTABLE_GV(POPs);
- svp = &GvSV(gv); /* symbol table variable */
- SAVEGENERICSV(*svp);
+ SV** svp = &GvSV(gv);
+ save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV);
*svp = newSV(0);
-#ifdef USE_ITHREADS
- iterdata = (PAD*)gv;
-#endif
+ itervar = (void *)gv;
}
if (PL_op->op_private & OPpITER_DEF)
ENTER_with_name("loop2");
PUSHBLOCK(cx, cxtype, SP);
-#ifdef USE_ITHREADS
- PUSHLOOP_FOR(cx, iterdata, MARK, PL_op->op_targ);
-#else
- PUSHLOOP_FOR(cx, svp, MARK, 0);
-#endif
+ PUSHLOOP_FOR(cx, itervar, MARK);
if (PL_op->op_flags & OPf_STACKED) {
SV *maybe_ary = POPs;
if (SvTYPE(maybe_ary) != SVt_PVAV) {
SV **newsp;
PMOP *newpm;
I32 optype = 0;
+ SV *namesv;
SV *sv;
OP *retop = NULL;
if (!(PL_in_eval & EVAL_KEEPERR))
clear_errsv = TRUE;
POPEVAL(cx);
+ namesv = cx->blk_eval.old_namesv;
retop = cx->blk_eval.retop;
if (CxTRYBLOCK(cx))
break;
- lex_end();
if (optype == OP_REQUIRE &&
(MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) )
{
/* Unassume the success we assumed earlier. */
- SV * const nsv = cx->blk_eval.old_namesv;
- (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD);
- DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv));
+ (void)hv_delete(GvHVn(PL_incgv),
+ SvPVX_const(namesv), SvCUR(namesv),
+ G_DISCARD);
+ DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv));
}
break;
case CXt_FORMAT:
if (PL_scopestack_ix < inner)
leave_scope(PL_scopestack[PL_scopestack_ix]);
PL_curcop = cx->blk_oldcop;
- return CX_LOOP_NEXTOP_GET(cx);
+ return (cx)->blk_loop.my_op->op_nextop;
}
PP(pp_redo)
else
label = cPVOP->op_pv;
+ PERL_ASYNC_CHECK();
+
if (label && *label) {
OP *gotoprobe = NULL;
bool leaving_eval = FALSE;
enterops, enterops + GOTO_DEPTH);
if (retop)
break;
+ if (gotoprobe->op_sibling &&
+ gotoprobe->op_sibling->op_type == OP_UNSTACK &&
+ gotoprobe->op_sibling->op_sibling) {
+ retop = dofindlabel(gotoprobe->op_sibling->op_sibling,
+ label, enterops, enterops + GOTO_DEPTH);
+ if (retop)
+ break;
+ }
}
PL_lastgotoprobe = gotoprobe;
}
* for each op. For now, we punt on the hard ones. */
if (PL_op->op_type == OP_ENTERITER)
DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop");
- CALL_FPTR(PL_op->op_ppaddr)(aTHX);
+ PL_op->op_ppaddr(aTHX);
}
PL_op = oldop;
}
break;
case 3:
/* die caught by an inner eval - continue inner loop */
-
- /* NB XXX we rely on the old popped CxEVAL still being at the top
- * of the stack; the way die_where() currently works, this
- * assumption is valid. In theory The cur_top_env value should be
- * returned in another global, the way retop (aka PL_restartop)
- * is. */
- assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL);
-
- if (PL_restartop
- && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env)
- {
+ if (PL_restartop && PL_restartjmpenv == PL_top_env) {
+ PL_restartjmpenv = NULL;
PL_op = PL_restartop;
PL_restartop = 0;
goto redo_body;
int runtime;
CV* runcv = NULL; /* initialise to avoid compiler warnings */
STRLEN len;
+ bool need_catch;
PERL_ARGS_ASSERT_SV_COMPILE_2OP;
ENTER_with_name("eval");
- lex_start(sv, NULL, FALSE);
+ lex_start(sv, NULL, 0);
SAVETMPS;
/* switch to eval mode */
PL_op->op_flags = 0; /* Avoid uninit warning. */
PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP);
PUSHEVAL(cx, 0);
+ need_catch = CATCH_GET;
+ CATCH_SET(TRUE);
if (runtime)
(void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq);
else
(void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax);
+ CATCH_SET(need_catch);
POPBLOCK(cx,PL_curpm);
POPEVAL(cx);
(*startop)->op_type = OP_NULL;
(*startop)->op_ppaddr = PL_ppaddr[OP_NULL];
- lex_end();
/* XXX DAPM do this properly one year */
*padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad));
LEAVE_with_name("eval");
}
+/* Run yyparse() in a setjmp wrapper. Returns:
+ * 0: yyparse() successful
+ * 1: yyparse() failed
+ * 3: yyparse() died
+ */
+STATIC int
+S_try_yyparse(pTHX_ int gramtype)
+{
+ int ret;
+ dJMPENV;
+
+ assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL);
+ JMPENV_PUSH(ret);
+ switch (ret) {
+ case 0:
+ ret = yyparse(gramtype) ? 1 : 0;
+ break;
+ case 3:
+ break;
+ default:
+ JMPENV_POP;
+ JMPENV_JUMP(ret);
+ /* NOTREACHED */
+ }
+ JMPENV_POP;
+ return ret;
+}
+
+
/* Compile a require/do, an eval '', or a /(?{...})/.
* In the last case, startop is non-null, and contains the address of
* a pointer that should be set to the just-compiled code.
{
dVAR; dSP;
OP * const saveop = PL_op;
+ bool in_require = (saveop && saveop->op_type == OP_REQUIRE);
+ int yystatus;
- PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE)
+ PL_in_eval = (in_require
? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL))
: EVAL_INEVAL);
PL_in_eval |= EVAL_KEEPERR;
else
CLEAR_ERRSV();
- if (yyparse() || PL_parser->error_count || !PL_eval_root) {
+
+ CALL_BLOCK_HOOKS(bhk_eval, saveop);
+
+ /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>,
+ * so honour CATCH_GET and trap it here if necessary */
+
+ yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG);
+
+ if (yystatus || PL_parser->error_count || !PL_eval_root) {
SV **newsp; /* Used by POPBLOCK. */
- PERL_CONTEXT *cx = &cxstack[cxstack_ix];
- I32 optype = 0; /* Might be reset by POPEVAL. */
+ PERL_CONTEXT *cx = NULL;
+ I32 optype; /* Used by POPEVAL. */
+ SV *namesv = NULL;
const char *msg;
+ PERL_UNUSED_VAR(newsp);
+ PERL_UNUSED_VAR(optype);
+
+ /* note that if yystatus == 3, then the EVAL CX block has already
+ * been popped, and various vars restored */
PL_op = saveop;
- if (PL_eval_root) {
- op_free(PL_eval_root);
- PL_eval_root = NULL;
- }
- SP = PL_stack_base + POPMARK; /* pop original mark */
- if (!startop) {
- POPBLOCK(cx,PL_curpm);
- POPEVAL(cx);
+ if (yystatus != 3) {
+ if (PL_eval_root) {
+ op_free(PL_eval_root);
+ PL_eval_root = NULL;
+ }
+ SP = PL_stack_base + POPMARK; /* pop original mark */
+ if (!startop) {
+ POPBLOCK(cx,PL_curpm);
+ POPEVAL(cx);
+ namesv = cx->blk_eval.old_namesv;
+ }
}
- lex_end();
- LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */
+ if (yystatus != 3)
+ LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */
msg = SvPVx_nolen_const(ERRSV);
- if (optype == OP_REQUIRE) {
- const SV * const nsv = cx->blk_eval.old_namesv;
- (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv),
- &PL_sv_undef, 0);
+ if (in_require) {
+ if (!cx) {
+ /* If cx is still NULL, it means that we didn't go in the
+ * POPEVAL branch. */
+ cx = &cxstack[cxstack_ix];
+ assert(CxTYPE(cx) == CXt_EVAL);
+ namesv = cx->blk_eval.old_namesv;
+ }
+ (void)hv_store(GvHVn(PL_incgv),
+ SvPVX_const(namesv), SvCUR(namesv),
+ &PL_sv_undef, 0);
Perl_croak(aTHX_ "%sCompilation failed in require",
*msg ? msg : "Unknown error\n");
}
else if (startop) {
- POPBLOCK(cx,PL_curpm);
- POPEVAL(cx);
+ if (yystatus != 3) {
+ POPBLOCK(cx,PL_curpm);
+ POPEVAL(cx);
+ }
Perl_croak(aTHX_ "%sCompilation failed in regexp",
(*msg ? msg : "Unknown error\n"));
}
sv_setpvs(ERRSV, "Compilation error");
}
}
- PERL_UNUSED_VAR(newsp);
PUSHs(&PL_sv_undef);
PUTBACK;
return FALSE;
}
}
- if (PL_unitcheckav)
+ if (PL_unitcheckav) {
+ OP *es = PL_eval_start;
call_list(PL_scopestack_ix, PL_unitcheckav);
+ PL_eval_start = es;
+ }
/* compiled okay, so do it */
}
STATIC PerlIO *
-S_check_type_and_open(pTHX_ const char *name)
+S_check_type_and_open(pTHX_ SV *name)
{
Stat_t st;
- const int st_rc = PerlLIO_stat(name, &st);
+ const char *p = SvPV_nolen_const(name);
+ const int st_rc = PerlLIO_stat(p, &st);
PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN;
return NULL;
}
- return PerlIO_open(name, PERL_SCRIPT_MODE);
+#if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO)
+ return PerlIO_openn(aTHX_ NULL, PERL_SCRIPT_MODE, -1, 0, 0, NULL, 1, &name);
+#else
+ return PerlIO_open(p, PERL_SCRIPT_MODE);
+#endif
}
#ifndef PERL_DISABLE_PMC
STATIC PerlIO *
-S_doopen_pm(pTHX_ const char *name, const STRLEN namelen)
+S_doopen_pm(pTHX_ SV *name)
{
PerlIO *fp;
+ STRLEN namelen;
+ const char *p = SvPV_const(name, namelen);
PERL_ARGS_ASSERT_DOOPEN_PM;
- if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) {
- SV *const pmcsv = newSV(namelen + 2);
- char *const pmc = SvPVX(pmcsv);
+ if (namelen > 3 && memEQs(p + namelen - 3, 3, ".pm")) {
+ SV *const pmcsv = sv_mortalcopy(name);
Stat_t pmcstat;
- memcpy(pmc, name, namelen);
- pmc[namelen] = 'c';
- pmc[namelen + 1] = '\0';
+ sv_catpvn(pmcsv, "c", 1);
- if (PerlLIO_stat(pmc, &pmcstat) < 0) {
- fp = check_type_and_open(name);
- }
- else {
- fp = check_type_and_open(pmc);
- }
- SvREFCNT_dec(pmcsv);
- }
- else {
- fp = check_type_and_open(name);
+ if (PerlLIO_stat(SvPV_nolen_const(pmcsv), &pmcstat) >= 0)
+ return check_type_and_open(pmcsv);
}
- return fp;
+ return check_type_and_open(name);
}
#else
-# define doopen_pm(name, namelen) check_type_and_open(name)
+# define doopen_pm(name) check_type_and_open(name)
#endif /* !PERL_DISABLE_PMC */
PP(pp_require)
sv = POPs;
if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) {
- sv = new_version(sv);
+ sv = sv_2mortal(new_version(sv));
if (!sv_derived_from(PL_patchlevel, "version"))
upg_version(PL_patchlevel, TRUE);
if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) {
}
}
- /* We do this only with use, not require. */
- if (PL_compcv &&
- /* If we request a version >= 5.9.5, load feature.pm with the
- * feature bundle that corresponds to the required version. */
- vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) {
- SV *const importsv = vnormal(sv);
- *SvPVX_mutable(importsv) = ':';
- ENTER_with_name("load_feature");
- Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL);
- LEAVE_with_name("load_feature");
- }
- /* If a version >= 5.11.0 is requested, strictures are on by default! */
- if (PL_compcv &&
- vcmp(sv, sv_2mortal(upg_version(newSVnv(5.011000), FALSE))) >= 0) {
- PL_hints |= (HINT_STRICT_REFS | HINT_STRICT_SUBS | HINT_STRICT_VARS);
+ /* We do this only with "use", not "require" or "no". */
+ if (PL_compcv && !(cUNOP->op_first->op_private & OPpCONST_NOVER)) {
+ /* If we request a version >= 5.9.5, load feature.pm with the
+ * feature bundle that corresponds to the required version. */
+ if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) {
+ SV *const importsv = vnormal(sv);
+ *SvPVX_mutable(importsv) = ':';
+ ENTER_with_name("load_feature");
+ Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL);
+ LEAVE_with_name("load_feature");
+ }
+ /* If a version >= 5.11.0 is requested, strictures are on by default! */
+ if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.011000), FALSE))) >= 0) {
+ PL_hints |= (HINT_STRICT_REFS | HINT_STRICT_SUBS | HINT_STRICT_VARS);
+ }
}
RETPUSHYES;
/* prepare to compile file */
if (path_is_absolute(name)) {
+ /* At this point, name is SvPVX(sv) */
tryname = name;
- tryrsfp = doopen_pm(name, len);
+ tryrsfp = doopen_pm(sv);
}
if (!tryrsfp) {
AV * const ar = GvAVn(PL_incgv);
count = call_sv(loader, G_ARRAY);
SPAGAIN;
- /* Adjust file name if the hook has set an %INC entry */
- svp = hv_fetch(GvHVn(PL_incgv), name, len, 0);
- if (svp)
- tryname = SvPV_nolen_const(*svp);
-
if (count > 0) {
int i = 0;
SV *arg;
FREETMPS;
LEAVE_with_name("call_INC");
+ /* Adjust file name if the hook has set an %INC entry.
+ This needs to happen after the FREETMPS above. */
+ svp = hv_fetch(GvHVn(PL_incgv), name, len, 0);
+ if (svp)
+ tryname = SvPV_nolen_const(*svp);
+
if (tryrsfp) {
hook_sv = dirsv;
break;
memcpy(tmp, name, len + 1);
SvCUR_set(namesv, dirlen + len + 1);
-
- /* Don't even actually have to turn SvPOK_on() as we
- access it directly with SvPVX() below. */
+ SvPOK_on(namesv);
}
# endif
#endif
TAINT_PROPER("require");
tryname = SvPVX_const(namesv);
- tryrsfp = doopen_pm(tryname, SvCUR(namesv));
+ tryrsfp = doopen_pm(namesv);
if (tryrsfp) {
if (tryname[0] == '.' && tryname[1] == '/') {
++tryname;
}
}
}
- SAVECOPFILE_FREE(&PL_compiling);
- CopFILE_set(&PL_compiling, tryrsfp ? tryname : name);
+ if (tryrsfp) {
+ SAVECOPFILE_FREE(&PL_compiling);
+ CopFILE_set(&PL_compiling, tryname);
+ }
SvREFCNT_dec(namesv);
if (!tryrsfp) {
if (PL_op->op_type == OP_REQUIRE) {
- const char *msgstr = name;
if(errno == EMFILE) {
- SV * const msg
- = sv_2mortal(Perl_newSVpvf(aTHX_ "%s: %s", msgstr,
- Strerror(errno)));
- msgstr = SvPV_nolen_const(msg);
+ /* diag_listed_as: Can't locate %s */
+ DIE(aTHX_ "Can't locate %s: %s", name, Strerror(errno));
} else {
if (namesv) { /* did we lookup @INC? */
AV * const ar = GvAVn(PL_incgv);
I32 i;
- SV * const msg = sv_2mortal(Perl_newSVpvf(aTHX_
- "%s in @INC%s%s (@INC contains:",
- msgstr,
- (instr(msgstr, ".h ")
- ? " (change .h to .ph maybe?)" : ""),
- (instr(msgstr, ".ph ")
- ? " (did you run h2ph?)" : "")
- ));
-
+ SV *const inc = newSVpvs_flags("", SVs_TEMP);
for (i = 0; i <= AvFILL(ar); i++) {
- sv_catpvs(msg, " ");
- sv_catsv(msg, *av_fetch(ar, i, TRUE));
+ sv_catpvs(inc, " ");
+ sv_catsv(inc, *av_fetch(ar, i, TRUE));
}
- sv_catpvs(msg, ")");
- msgstr = SvPV_nolen_const(msg);
- }
+
+ /* diag_listed_as: Can't locate %s */
+ DIE(aTHX_
+ "Can't locate %s in @INC%s%s (@INC contains:%" SVf ")",
+ name,
+ (memEQ(name + len - 2, ".h", 3)
+ ? " (change .h to .ph maybe?) (did you run h2ph?)" : ""),
+ (memEQ(name + len - 3, ".ph", 4)
+ ? " (did you run h2ph?)" : ""),
+ inc
+ );
+ }
}
- DIE(aTHX_ "Can't locate %s", msgstr);
+ DIE(aTHX_ "Can't locate %s", name);
}
RETPUSHUNDEF;
ENTER_with_name("eval");
SAVETMPS;
- lex_start(NULL, tryrsfp, TRUE);
+ lex_start(NULL, tryrsfp, 0);
SAVEHINTS();
PL_hints = 0;
{
dVAR;
dSP;
- mXPUSHs(MUTABLE_SV(Perl_hv_copy_hints_hv(aTHX_ MUTABLE_HV(cSVOP_sv))));
+ mXPUSHs(MUTABLE_SV(hv_copy_hints_hv(MUTABLE_HV(cSVOP_sv))));
RETURN;
}
saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs));
}
sv = POPs;
+ if (!SvPOK(sv)) {
+ /* make sure we've got a plain PV (no overload etc) before testing
+ * for taint. Making a copy here is probably overkill, but better
+ * safe than sorry */
+ STRLEN len;
+ const char * const p = SvPV_const(sv, len);
+
+ sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv));
+ }
TAINT_IF(SvTAINTED(sv));
TAINT_PROPER("eval");
ENTER_with_name("eval");
- lex_start(sv, NULL, FALSE);
+ lex_start(sv, NULL, 0);
SAVETMPS;
/* switch to eval mode */
}
SAVECOMPILEWARNINGS();
PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings);
- if (PL_compiling.cop_hints_hash) {
- Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash);
- }
- PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash;
- if (PL_compiling.cop_hints_hash) {
- HINTS_REFCNT_LOCK;
- PL_compiling.cop_hints_hash->refcounted_he_refcnt++;
- HINTS_REFCNT_UNLOCK;
+ cophh_free(CopHINTHASH_get(&PL_compiling));
+ if (Perl_fetch_cop_label(aTHX_ PL_curcop, NULL, NULL)) {
+ /* The label, if present, is the first entry on the chain. So rather
+ than writing a blank label in front of it (which involves an
+ allocation), just use the next entry in the chain. */
+ PL_compiling.cop_hints_hash
+ = cophh_copy(PL_curcop->cop_hints_hash->refcounted_he_next);
+ /* Check the assumption that this removed the label. */
+ assert(Perl_fetch_cop_label(aTHX_ &PL_compiling, NULL, NULL) == NULL);
}
+ else
+ PL_compiling.cop_hints_hash = cophh_copy(PL_curcop->cop_hints_hash);
/* special case: an eval '' executed within the DB package gets lexically
* placed in the first non-DB CV rather than the current CV - this
* allows the debugger to execute code, find lexicals etc, in the
OP *retop;
const U8 save_flags = PL_op -> op_flags;
I32 optype;
+ SV *namesv;
POPBLOCK(cx,newpm);
POPEVAL(cx);
+ namesv = cx->blk_eval.old_namesv;
retop = cx->blk_eval.retop;
TAINT_NOT;
assert(CvDEPTH(PL_compcv) == 1);
#endif
CvDEPTH(PL_compcv) = 0;
- lex_end();
if (optype == OP_REQUIRE &&
!(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp))
{
/* Unassume the success we assumed earlier. */
- SV * const nsv = cx->blk_eval.old_namesv;
- (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD);
- retop = Perl_die(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv));
- /* die_where() did LEAVE, or we won't be here */
+ (void)hv_delete(GvHVn(PL_incgv),
+ SvPVX_const(namesv), SvCUR(namesv),
+ G_DISCARD);
+ retop = Perl_die(aTHX_ "%"SVf" did not return a true value",
+ SVfARG(namesv));
+ /* die_unwind() did LEAVE, or we won't be here */
}
else {
LEAVE_with_name("eval");
POPBLOCK(cx,newpm);
assert(CxTYPE(cx) == CXt_GIVEN);
- SP = newsp;
- PUTBACK;
-
- PL_curpm = newpm; /* pop $1 et al */
+ TAINT_NOT;
+ if (gimme == G_VOID)
+ SP = newsp;
+ else if (gimme == G_SCALAR) {
+ register SV **mark;
+ MARK = newsp + 1;
+ if (MARK <= SP) {
+ if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
+ *MARK = TOPs;
+ else
+ *MARK = sv_mortalcopy(TOPs);
+ }
+ else {
+ MEXTEND(mark,0);
+ *MARK = &PL_sv_undef;
+ }
+ SP = MARK;
+ }
+ else {
+ /* in case LEAVE wipes old return values */
+ register SV **mark;
+ for (mark = newsp + 1; mark <= SP; mark++) {
+ if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) {
+ *mark = sv_mortalcopy(*mark);
+ TAINT_NOT; /* Each item is independent */
+ }
+ }
+ }
+ PL_curpm = newpm; /* Don't pop $1 et al till now */
LEAVE_with_name("given");
-
- return NORMAL;
+ RETURN;
}
/* Helper routines used by pp_smartmatch */
SV *e = TOPs; /* e is for 'expression' */
SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */
+ /* Take care only to invoke mg_get() once for each argument.
+ * Currently we do this by copying the SV if it's magical. */
+ if (d) {
+ if (SvGMAGICAL(d))
+ d = sv_mortalcopy(d);
+ }
+ else
+ d = &PL_sv_undef;
+
+ assert(e);
+ if (SvGMAGICAL(e))
+ e = sv_mortalcopy(e);
+
/* First of all, handle overload magic of the rightmost argument */
if (SvAMAGIC(e)) {
SV * tmpsv;
SP -= 2; /* Pop the values */
- /* Take care only to invoke mg_get() once for each argument.
- * Currently we do this by copying the SV if it's magical. */
- if (d) {
- if (SvGMAGICAL(d))
- d = sv_mortalcopy(d);
- }
- else
- d = &PL_sv_undef;
-
- assert(e);
- if (SvGMAGICAL(e))
- e = sv_mortalcopy(e);
/* ~~ undef */
if (!SvOK(e)) {
fails, we don't want to push a context and then
pop it again right away, so we skip straight
to the op that follows the leavewhen.
+ RETURNOP calls PUTBACK which restores the stack pointer after the POPs.
*/
if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs))
- return cLOGOP->op_other->op_next;
+ RETURNOP(cLOGOP->op_other->op_next);
ENTER_with_name("eval");
SAVETMPS;
I32 cxix;
register PERL_CONTEXT *cx;
I32 inner;
-
+ dSP;
+
cxix = dopoptogiven(cxstack_ix);
if (cxix < 0) {
if (PL_op->op_flags & OPf_SPECIAL)
PL_curcop = cx->blk_oldcop;
if (CxFOREACH(cx))
- return CX_LOOP_NEXTOP_GET(cx);
+ return (cx)->blk_loop.my_op->op_nextop;
else
- return cx->blk_givwhen.leave_op;
+ /* RETURNOP calls PUTBACK which restores the old old sp */
+ RETURNOP(cx->blk_givwhen.leave_op);
}
STATIC OP *
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