module Faraday
  # Loads each autoloaded constant.  If thread safety is a concern, wrap
  # this in a Mutex.
  def self.load
    constants.each do |const|
      const_get(const) if autoload?(const)
    end
  end

  autoload :Connection, 'faraday/connection'
  autoload :Response,   'faraday/response'

  module Adapter
    autoload :NetHttp,  'faraday/adapter/net_http'
    autoload :Typhoeus, 'faraday/adapter/typhoeus'

    def self.adapters
      constants
    end

    def self.loaded_adapters
      adapters.map { |c| const_get(c) }.select { |a| a.loaded? }
    end
  end
end

# not pulling in active-support JUST for this method.
class Object
  # Yields <code>x</code> to the block, and then returns <code>x</code>.
  # The primary purpose of this method is to "tap into" a method chain,
  # in order to perform operations on intermediate results within the chain.
  #
  #   (1..10).tap { |x| puts "original: #{x.inspect}" }.to_a.
  #     tap    { |x| puts "array: #{x.inspect}" }.
  #     select { |x| x%2 == 0 }.
  #     tap    { |x| puts "evens: #{x.inspect}" }.
  #     map    { |x| x*x }.
  #     tap    { |x| puts "squares: #{x.inspect}" }
  def tap
    yield self
    self
  end unless Object.respond_to?(:tap)
end