class Spec::Matchers::OperatorMatcher

def self.use_custom_matcher_or_delegate(operator)
  define_method(operator) do |expected|
    if matcher = OperatorMatcher.get(@actual.class, operator)
      @actual.send(::Spec::Matchers.last_should, matcher.new(expected))
    else
      eval_match(@actual, operator, expected)
    end
  end
end

def description
  "#{@operator} #{@expected.inspect}"
end

def eval_match(actual, operator, expected)
  ::Spec::Matchers.last_matcher = self
  @operator, @expected = operator, expected
  __delegate_operator(actual, operator, expected)
end

def fail_with_message(message)
  Spec::Expectations.fail_with(message, @expected, @actual)
end

def get(klass, operator)
  registry[klass] && registry[klass][operator]
end

def initialize(actual)
  @actual = actual
end

def register(klass, operator, matcher)
  registry[klass] ||= {}
  registry[klass][operator] = matcher
end

def registry
  @registry ||= {}
end