diff options
Diffstat (limited to 'eval.c')
-rw-r--r-- | eval.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -5060,7 +5060,7 @@ rb_yield_0(val, self, klass, flags, avalue) switch (node->nd_state) { case YIELD_FUNC_LAMBDA: if (!avalue) { - val = rb_ary_new3(1, val); + val = (val == Qundef) ? rb_ary_new2(0) : rb_ary_new3(1, val); } break; case YIELD_FUNC_AVALUE: |