class RSpec::Mocks::MessageExpectation

def initialize(error_generator, expectation_ordering, expected_from, method_double,
               expected_received_count=1, opts={}, &implementation_block)
  @error_generator = error_generator
  @error_generator.opts = opts
  @expected_from = expected_from
  @method_double = method_double
  @orig_object = @method_double.object
  @message = @method_double.method_name
  @actual_received_count = 0
  @expected_received_count = expected_received_count
  @argument_list_matcher = ArgumentListMatcher::MATCH_ALL
  @order_group = expectation_ordering
  @order_group.register(self)
  @ordered = false
  @at_least = @at_most = @exactly = nil
  @args_to_yield = []
  @failed_fast = nil
  @eval_context = nil
  @yield_receiver_to_implementation_block = false
  @implementation = Implementation.new
  self.inner_implementation_action = implementation_block
end