From: "atlas (Atlas Prime)" Date: 2013-11-21T22:24:15+09:00 Subject: [ruby-core:58465] [ruby-trunk - misc #9136] Deprecated Enumerator.new(object, method) bad for BasicObject Issue #9136 has been updated by atlas (Atlas Prime). P.S. This interface for bug reports is buggy (and I see no way to fix what I submitted). Not to offend, but why do it when there is GitHub issues? ---------------------------------------- misc #9136: Deprecated Enumerator.new(object, method) bad for BasicObject https://bugs.ruby-lang.org/issues/9136#change-43060 Author: atlas (Atlas Prime) Status: Open Priority: Normal Assignee: Category: core Target version: =begin Documentation it says: ((*In the second, deprecated, form, a generated Enumerator iterates over the given object using the given method with the given arguments passed. Use of this form is discouraged. Use Kernel#enum_for or Kernel#to_enum instead. *)) (({ e = Enumerator.new(ObjectSpace, :each_object) #-> ObjectSpace.enum_for(:each_object) })) But #enum_for and #to_enum are not available to subclasses of BasicObject. In fact, I was defining #to_enum for a class that is a subclass of BasicObject, and now I get warning of deprecation. =end -- http://bugs.ruby-lang.org/