module Sass::Embedded::Host::ValueProtofier::CalculationOperator

def from_proto(operator)
  case operator
  when :PLUS
    '+'
  when :MINUS
    '-'
  when :TIMES
    '*'
  when :DIVIDE
    '/'
  else
    raise Sass::ScriptError, "Unknown CalculationOperator #{separator}"
  end
end

def to_proto(operator)
  case operator
  when '+'
    :PLUS
  when '-'
    :MINUS
  when '*'
    :TIMES
  when '/'
    :DIVIDE
  else
    raise Sass::ScriptError, "Unknown CalculationOperator #{separator}"
  end
end