diff options
Diffstat (limited to 'enumerator.c')
| -rw-r--r-- | enumerator.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/enumerator.c b/enumerator.c index 662056d5a5..54cbdc482b 100644 --- a/enumerator.c +++ b/enumerator.c @@ -270,6 +270,7 @@ enumerator_init(VALUE enum_obj, VALUE obj, VALUE meth, int argc, VALUE *argv, rb { struct enumerator *ptr; + rb_check_frozen(enum_obj); TypedData_Get_Struct(enum_obj, struct enumerator, &enumerator_data_type, ptr); if (!ptr) { |