module RubyFeatures

# File lib/ruby-features.rb, line 57
def active_support_available?
  @active_support_available
end

# File lib/ruby-features.rb, line 49
def apply(*feature_names)
  feature_names.each do |feature_name|
    raise NameError.new("Such feature is not registered: #{feature_name}") unless @features.has_key?(feature_name)

    @features[feature_name].apply
  end
end

# File lib/ruby-features.rb, line 41
def define(feature_name, &feature_body)
  feature_name = feature_name.to_s
  raise NameError.new("Wrong feature name: #{feature_name}") unless feature_name.match(/^[\/_a-z\d]+$/)
  raise NameError.new("Such feature is already registered: #{feature_name}") if @features.has_key?(feature_name)

  @features[feature_name] = Mixins.new(feature_name, feature_body)
end

# File lib/ruby-features.rb, line 31
def find_in_path(*folders)
  old_feature_names = @features.keys

  Dir[*folders.map{|folder| File.join(folder, '**', '*_feature.rb') }].each do |file|
    require file
  end

  Container.new(@features.keys - old_feature_names)
end