rb_data_object_get 1173 include/ruby/ruby.h     ((sval) = (type*)rb_data_object_get(obj))
rb_data_object_get 1365 include/ruby/ruby.h rb_data_object_get(VALUE obj)
rb_data_object_get 1375 include/ruby/ruby.h     return rb_data_object_get(obj);
rb_data_object_get 1415 include/ruby/ruby.h #define rb_data_object_get_0 rb_data_object_get
rb_data_object_get  256 vm_core.h      #define CoreDataFromValue(obj, type) (type*)rb_data_object_get(obj)