class RSpec::Mocks::Matchers::ExpectationCustomization

@private

def initialize(method_name, args, block) 

def initialize(method_name, args, block)
  @method_name = method_name
  @args        = args
  @block       = block
end

def playback_onto(expectation) 

def playback_onto(expectation)
  expectation.__send__(@method_name, *@args, &@block)
end