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Sarathy's clear_pmop patch with Radu Greab's fix,
[perl5.git] / op.c
diff --git a/op.c b/op.c
index 045b8d3..25e7aa5 100644 (file)
--- a/op.c
+++ b/op.c
@@ -843,6 +843,29 @@ S_op_clear(pTHX_ OP *o)
     case OP_MATCH:
     case OP_QR:
 clear_pmop:
+       {
+           HV *pmstash = PmopSTASH(cPMOPo);
+           if (pmstash && SvREFCNT(pmstash)) {
+               PMOP *pmop = HvPMROOT(pmstash);
+               PMOP *lastpmop = NULL;
+               while (pmop) {
+                   if (cPMOPo == pmop) {
+                       if (lastpmop)
+                           lastpmop->op_pmnext = pmop->op_pmnext;
+                       else
+                           HvPMROOT(pmstash) = pmop->op_pmnext;
+                       break;
+                   }
+                   lastpmop = pmop;
+                   pmop = pmop->op_pmnext;
+               }
+#ifdef USE_ITHREADS
+               Safefree(PmopSTASHPV(cPMOPo));
+#else
+               /* NOTE: PMOP.op_pmstash is not refcounted */
+#endif
+           }
+       }
        cPMOPo->op_pmreplroot = Nullop;
        ReREFCNT_dec(cPMOPo->op_pmregexp);
        cPMOPo->op_pmregexp = (REGEXP*)NULL;
@@ -2940,6 +2963,7 @@ Perl_newPMOP(pTHX_ I32 type, I32 flags)
     if (type != OP_TRANS && PL_curstash) {
        pmop->op_pmnext = HvPMROOT(PL_curstash);
        HvPMROOT(PL_curstash) = pmop;
+       PmopSTASH_set(pmop,PL_curstash);
     }
 
     return (OP*)pmop;