scope.rb

      def bytecode g
        pos g

        g.push_rubinius
        g.create_block block_from_children g
        g.send_stack_with_block :lambda, 0

        g.ret
      end

      private

      def block_from_children g
        blk = g.class.new
        blk.file = g.file
        blk.for_block = true

        blk.arity = arity
        blk.definition_line line
        pos blk

        arguments.each do |argument|
          argument.bytecode g
        end

        blk.push_modifiers
        blk.break = nil
        blk.next = nil
        blk.redo = blk.new_label
        blk.redo.set!

        children.each do |child|
          child.bytecode(blk)
        end

        blk.pop_modifiers
        blk.ret
        blk.close
        # blk.pop_state

        blk.local_count = local_count
        blk.local_names = local_names
      end

      def local_count
        @locals.size
      end

      def local_names
        @locals.map { |v| v.name.to_sym }
      end