class RSpec::Mocks::ObjectMethodReference

def find_method(object)
  object.method(@method_name)
end

def method_defined?(object)
  (class << object; self; end).method_defined?(@method_name)
end

def method_implemented?(object)
  object.respond_to?(@method_name, true)
end

def visibility_from(object)
  MethodReference.method_visibility_for(object, @method_name)
end