class Puppet::Parser::AST
  # The parent class of all AST objects that contain other AST objects.
  # Everything but the really simple objects descend from this.  It is
  # important to note that Branch objects contain other AST objects only --
  # if you want to contain values, use a descendent of the AST::Leaf class.
  class Branch < AST
    include Enumerable
    attr_accessor :pin, :children

    def each
      @children.each { |child|
        yield child
      }
    end

    def initialize(arghash)
      super(arghash)

      @children ||= []
    end
  end
end