* class.c (check_mix_method_i, do_mix_method_i): not mix methods

  renamed as nil.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31917 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/class.c b/class.c
index 2a2b3ef131..e7c42daad7 100644
--- a/class.c
+++ b/class.c
@@ -745,6 +745,7 @@ check_mix_method_i(st_data_t key, st_data_t value, st_data_t arg)
     st_data_t alias;
 
     if (aliasing && st_lookup(aliasing, ID2SYM(id), &alias)) {
+	if (NIL_P(alias)) return ST_CONTINUE;
 	id = rb_to_id(alias);
     }
     if (st_lookup(argp->mtbl, id, NULL)) {
@@ -763,6 +764,7 @@ do_mix_method_i(st_data_t key, st_data_t value, st_data_t arg)
     st_data_t old, alias;
 
     if (aliasing && st_lookup(aliasing, ID2SYM(id), &alias)) {
+	if (NIL_P(alias)) return ST_CONTINUE;
 	id = rb_to_id(alias);
     }
     if (st_lookup(argp->mtbl, id, &old)) {