Add Class#descendants

Doesn't include receiver or singleton classes.

Implements [Feature #14394]

Co-authored-by: fatkodima <fatkodima123@gmail.com>
Co-authored-by: Benoit Daloze <eregontp@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/object.c b/object.c
index 5eca02a08c..f98fb83936 100644
--- a/object.c
+++ b/object.c
@@ -4653,6 +4653,7 @@ InitVM_Object(void)
     rb_define_method(rb_cClass, "new", rb_class_new_instance_pass_kw, -1);
     rb_define_method(rb_cClass, "initialize", rb_class_initialize, -1);
     rb_define_method(rb_cClass, "superclass", rb_class_superclass, 0);
+    rb_define_method(rb_cClass, "descendants", rb_class_descendants, 0); /* in class.c */
     rb_define_alloc_func(rb_cClass, rb_class_s_alloc);
     rb_undef_method(rb_cClass, "extend_object");
     rb_undef_method(rb_cClass, "append_features");