module Faraday::AutoloadHelper

def all_loaded_constants
  constants.map { |c| const_get(c) }.
    select { |a| a.respond_to?(:loaded?) && a.loaded? }
end

def autoload_all(prefix, options)
  options.each do |const_name, path|
    autoload const_name, File.join(prefix, path)
  end
end

def load_autoloaded_constants
  constants.each do |const|
    const_get(const) if autoload?(const)
  end
end

def lookup_module(key)
  return if !@lookup_module_index
  const_get @lookup_module_index[key] || key
end

def register_lookup_modules(mods)
  (@lookup_module_index ||= {}).update(mods)
end