X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=op.c;h=386e9de0bf981c5ded79f31ec3840bf194fc54b0;hb=2decb4fb82e001e3c9671c57b61232c651a9c22c;hp=4baf03b313b7269c173a7f931ddce4452dbe3e65;hpb=5faabd7d610b4ff8e7c072611a59259096c14bad;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/op.c b/op.c
index 4baf03b..386e9de 100644
--- a/op.c
+++ b/op.c
@@ -1691,7 +1691,7 @@ Perl_ref(pTHX_ OP *o, I32 type)
 
     switch (o->op_type) {
     case OP_ENTERSUB:
-	if ((type == OP_DEFINED || type == OP_LOCK) &&
+	if ((type == OP_EXISTS || type == OP_DEFINED || type == OP_LOCK) &&
 	    !(o->op_flags & OPf_STACKED)) {
 	    o->op_type = OP_RV2CV;             /* entersub => rv2cv */
 	    o->op_ppaddr = PL_ppaddr[OP_RV2CV];
@@ -5033,7 +5033,14 @@ Perl_ck_exists(pTHX_ OP *o)
     o = ck_fun(o);
     if (o->op_flags & OPf_KIDS) {
 	OP *kid = cUNOPo->op_first;
-	if (kid->op_type == OP_AELEM)
+	if (kid->op_type == OP_ENTERSUB) {
+	    (void) ref(kid, o->op_type);
+	    if (kid->op_type != OP_RV2CV && !PL_error_count)
+		Perl_croak(aTHX_ "%s argument is not a subroutine name",
+			   PL_op_desc[o->op_type]);
+	    o->op_private |= OPpEXISTS_SUB;
+	}
+	else if (kid->op_type == OP_AELEM)
 	    o->op_flags |= OPf_SPECIAL;
 	else if (kid->op_type != OP_HELEM)
 	    Perl_croak(aTHX_ "%s argument is not a HASH or ARRAY element",