diff options
Diffstat (limited to 'class.c')
-rw-r--r-- | class.c | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -92,6 +92,9 @@ rb_class_init_copy(clone, orig) if (RCLASS(clone)->super != 0) { rb_raise(rb_eTypeError, "already initialized class"); } + if (FL_TEST(orig, FL_SINGLETON)) { + rb_raise(rb_eTypeError, "can't copy singleton class"); + } return rb_mod_init_copy(clone, orig); } |