class RSpec::Matchers::BuiltIn::YieldSuccessiveArgs

def description
  "yield successive args(#{expected_arg_description})"
end

def does_not_match?(block)
  !matches?(block) && @probe.has_block?
end

def expected_arg_description
  @expected.map { |e| description_of e }.join(', ')
end

def failure_message
  'expected given block to yield successively with arguments, ' \
  "but #{positive_failure_reason}"
end

def failure_message_when_negated
  'expected given block not to yield successively with arguments, ' \
  "but #{negative_failure_reason}"
end

def initialize(*args)
  @expected = args
end

def matches?(block)
  @actual_formatted = []
  @actual = []
  args_matched_when_yielded = true
  yield_count = 0
  @probe = YieldProbe.probe(block) do |*arg_array|
    arg_or_args = arg_array.size == 1 ? arg_array.first : arg_array
    @actual_formatted << RSpec::Support::ObjectFormatter.format(arg_or_args)
    @actual << arg_or_args
    args_matched_when_yielded &&= values_match?(@expected[yield_count], arg_or_args)
    yield_count += 1
  end
  return false unless @probe.has_block?
  args_matched_when_yielded && yield_count == @expected.length
end

def negative_failure_reason
  return 'was not a block' unless @probe.has_block?
  'yielded with expected arguments' \
  "\nexpected not: #{surface_descriptions_in(@expected).inspect}" \
  "\n         got: [#{@actual_formatted.join(", ")}]"
end

def positive_failure_reason
  return 'was not a block' unless @probe.has_block?
  'yielded with unexpected arguments' \
  "\nexpected: #{surface_descriptions_in(@expected).inspect}" \
  "\n     got: [#{@actual_formatted.join(", ")}]"
end

def supports_block_expectations?
  true
end

def supports_value_expectations?
  false
end