diff options
Diffstat (limited to 'pp_ctl.c')
-rw-r--r-- | pp_ctl.c | 110 |
1 files changed, 47 insertions, 63 deletions
@@ -2519,10 +2519,49 @@ PP(pp_leavesublv) return cx->blk_sub.retop; } -PP(pp_last) +static I32 +S_unwind_loop(pTHX_ const char * const opname) { - dVAR; dSP; + dVAR; I32 cxix; + if (PL_op->op_flags & OPf_SPECIAL) { + cxix = dopoptoloop(cxstack_ix); + if (cxix < 0) + /* diag_listed_as: Can't "last" outside a loop block */ + Perl_croak(aTHX_ "Can't \"%s\" outside a loop block", opname); + } + else { + dSP; + STRLEN label_len; + const char * const label = + PL_op->op_flags & OPf_STACKED + ? SvPV(TOPs,label_len) + : (label_len = strlen(cPVOP->op_pv), cPVOP->op_pv); + const U32 label_flags = + PL_op->op_flags & OPf_STACKED + ? SvUTF8(POPs) + : (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0; + PUTBACK; + cxix = dopoptolabel(label, label_len, label_flags); + if (cxix < 0) + /* diag_listed_as: Label not found for "last %s" */ + Perl_croak(aTHX_ "Label not found for \"%s %"SVf"\"", + opname, + SVfARG(PL_op->op_flags & OPf_STACKED + && !SvGMAGICAL(TOPp1s) + ? TOPp1s + : newSVpvn_flags(label, + label_len, + label_flags | SVs_TEMP))); + } + if (cxix < cxstack_ix) + dounwind(cxix); + return cxix; +} + +PP(pp_last) +{ + dVAR; register PERL_CONTEXT *cx; I32 pop2 = 0; I32 gimme; @@ -2533,24 +2572,7 @@ PP(pp_last) SV **mark; SV *sv = NULL; - - if (PL_op->op_flags & OPf_SPECIAL) { - cxix = dopoptoloop(cxstack_ix); - if (cxix < 0) - DIE(aTHX_ "Can't \"last\" outside a loop block"); - } - else { - cxix = dopoptolabel(cPVOP->op_pv, strlen(cPVOP->op_pv), - (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0); - if (cxix < 0) - DIE(aTHX_ "Label not found for \"last %"SVf"\"", - SVfARG(newSVpvn_flags(cPVOP->op_pv, - strlen(cPVOP->op_pv), - ((cPVOP->op_private & OPpPV_IS_UTF8) - ? SVf_UTF8 : 0) | SVs_TEMP))); - } - if (cxix < cxstack_ix) - dounwind(cxix); + S_unwind_loop(aTHX_ "last"); POPBLOCK(cx,newpm); cxstack_ix++; /* temporarily protect top context */ @@ -2581,9 +2603,8 @@ PP(pp_last) } TAINT_NOT; - SP = adjust_stack_on_leave(newsp, SP, MARK, gimme, + PL_stack_sp = adjust_stack_on_leave(newsp, PL_stack_sp, MARK, gimme, pop2 == CXt_SUB ? SVs_TEMP : 0); - PUTBACK; LEAVE; cxstack_ix--; @@ -2611,31 +2632,13 @@ PP(pp_last) PP(pp_next) { dVAR; - I32 cxix; register PERL_CONTEXT *cx; - I32 inner; + const I32 inner = PL_scopestack_ix; - if (PL_op->op_flags & OPf_SPECIAL) { - cxix = dopoptoloop(cxstack_ix); - if (cxix < 0) - DIE(aTHX_ "Can't \"next\" outside a loop block"); - } - else { - cxix = dopoptolabel(cPVOP->op_pv, strlen(cPVOP->op_pv), - (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0); - if (cxix < 0) - DIE(aTHX_ "Label not found for \"next %"SVf"\"", - SVfARG(newSVpvn_flags(cPVOP->op_pv, - strlen(cPVOP->op_pv), - ((cPVOP->op_private & OPpPV_IS_UTF8) - ? SVf_UTF8 : 0) | SVs_TEMP))); - } - if (cxix < cxstack_ix) - dounwind(cxix); + S_unwind_loop(aTHX_ "next"); /* clear off anything above the scope we're re-entering, but * save the rest until after a possible continue block */ - inner = PL_scopestack_ix; TOPBLOCK(cx); if (PL_scopestack_ix < inner) leave_scope(PL_scopestack[PL_scopestack_ix]); @@ -2646,30 +2649,11 @@ PP(pp_next) PP(pp_redo) { dVAR; - I32 cxix; + const I32 cxix = S_unwind_loop(aTHX_ "redo"); register PERL_CONTEXT *cx; I32 oldsave; - OP* redo_op; - - if (PL_op->op_flags & OPf_SPECIAL) { - cxix = dopoptoloop(cxstack_ix); - if (cxix < 0) - DIE(aTHX_ "Can't \"redo\" outside a loop block"); - } - else { - cxix = dopoptolabel(cPVOP->op_pv, strlen(cPVOP->op_pv), - (cPVOP->op_private & OPpPV_IS_UTF8) ? SVf_UTF8 : 0); - if (cxix < 0) - DIE(aTHX_ "Label not found for \"redo %"SVf"\"", - SVfARG(newSVpvn_flags(cPVOP->op_pv, - strlen(cPVOP->op_pv), - ((cPVOP->op_private & OPpPV_IS_UTF8) - ? SVf_UTF8 : 0) | SVs_TEMP))); - } - if (cxix < cxstack_ix) - dounwind(cxix); + OP* redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; - redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; if (redo_op->op_type == OP_ENTER) { /* pop one less context to avoid $x being freed in while (my $x..) */ cxstack_ix++; |