Feature #17116
Updated by sawa (Tsuyoshi Sawada) about 4 years ago
Currently, Now, `Enumerator#new` allows is allow this code (no block given): code(no given blocks). ```ruby obj = Object.new Enumerator.new(obj) ``` with a But, warning (since ruby-2.0.0-preview2): is displayed(since `ruby-2.0.0-preview2`). ```bash -e:1: warning: Enumerator.new without a block is deprecated; use Object#to_enum instead ``` I think it's okay to remove this behaviour. And I think that it seems natural to raise ArgumentError if no block is given. pull request: https://github.com/ruby/ruby/pull/3408