class Faraday::RackBuilder::Handler

def ==(other)
  if other.is_a? Handler
    self.name == other.name
  elsif other.respond_to? :name
    klass == other
  else
    @name == other.to_s
  end
end

def build(app)
  klass.new(app, *@args, &@block)
end

def initialize(klass, *args, &block)
  @name = klass.to_s
  if klass.respond_to?(:name)
    @@constants_mutex.synchronize { @@constants[@name] = klass }
  end
  @args, @block = args, block
end

def inspect() @name end

def klass() @@constants[@name] end