概要
Proc#to_proc -> self
詳細
自身を返却。
Duck Typing 用か?
サンプルコード
require 'tbpgr_utils' p1 = Proc.new {} p2 = proc {} p3 = lambda {} class Sum def sum(a, b) a + b end def to_proc -> (a, b) {a + b} end end def use_proc(a, b, pr) pr.to_proc.call(a, b) end bulk_puts_eval binding, <<-EOS p1.to_proc == p1 p2.to_proc == p2 p3.to_proc == p3 use_proc(1, 2, Sum.new) use_proc(1, 2, Proc.new { |a, b|a + b }) EOS __END__ 下記はTbpgrUtils gemの機能 bulk_puts_eval https://rubygems.org/gems/tbpgr_utils https://github.com/tbpgr/tbpgr_utils
出力
p1.to_proc == p1 # => true p2.to_proc == p2 # => true p3.to_proc == p3 # => true use_proc(1, 2, Sum.new) # => 3 use_proc(1, 2, Proc.new { |a, b|a + b }) # => 3