Carp was mostly unusable with Safe because it may require

[p5sagit/p5-mst-13.2.git] / op.c

diff --git a/op.c b/op.c
index b3b5c44..cdc0749 100644 (file)
--- a/op.c
+++ b/op.c
@@ -661,6 +661,15 @@ Perl_scalarvoid(pTHX_ OP *o)
            useless = OP_DESC(o);
        break;
 
+    case OP_NOT:
+       kid = cUNOPo->op_first;
+       if (kid->op_type != OP_MATCH && kid->op_type != OP_SUBST &&
+           kid->op_type != OP_TRANS) {
+               goto func_ops;
+       }
+       useless = "negative pattern binding (!~)";
+       break;
+
     case OP_RV2GV:
     case OP_RV2SV:
     case OP_RV2AV:
@@ -6633,6 +6642,17 @@ Perl_peep(pTHX_ register OP *o)
                    || (o2->op_flags & OPf_WANT) != OPf_WANT_VOID)
                break;
 
+           /* check that the sort is the first arg on RHS of assign */
+
+           o2 = cUNOPx(o2)->op_first;
+           if (!o2 || o2->op_type != OP_NULL)
+               break;
+           o2 = cUNOPx(o2)->op_first;
+           if (!o2 || o2->op_type != OP_PUSHMARK)
+               break;
+           if (o2->op_sibling != o)
+               break;
+
            /* check the array is the same on both sides */
            if (oleft->op_type == OP_RV2AV) {
                if (oright->op_type != OP_RV2AV