third-party/mruby/mrbgems/mruby-kernel-ext/mrblib/kernel.rb

   1 module Kernel
   2   # call-seq:
   3   #   obj.yield_self {|_obj|...} -> an_object
   4   #   obj.then {|_obj|...}       -> an_object
   5   #
   6   # Yields <i>obj</i> and returns the result.
   7   #
   8   #   'my string'.yield_self {|s|s.upcase} #=> "MY STRING"
   9   #
  10   def yield_self(&block)
  11     return to_enum :yield_self unless block
  12     block.call(self)
  13   end
  14   alias then yield_self
  15 end