class Code
  class Parser
    class Operation < ::Code::Parser
      def initialize(input, operators:, subclass:, **kargs)
        super(input, **kargs)

        @operators = operators
        @subclass = subclass
      end

      def parse
        previous_cursor = cursor
        left = parse_subclass(subclass)
        right = []
        previous_cursor = cursor
        comments = parse_comments

        while operator = match(operators)
          comments = parse_comments
          statement = parse_subclass(subclass)
          right << {
            comments: comments,
            statement: statement,
            operator: operator
          }.compact
        end

        if right.empty?
          @cursor = previous_cursor
          buffer!
          left
        else
          {
            operation: { left: left, comments: comments, right: right }.compact
          }
        end
      end

      private

      attr_reader :operators, :subclass
    end
  end
end