小编Rob*_*t25的帖子

我是Cats的初学者.验证猫有错误.我使用这样的列表累加器:

case class Type(
 name: String,
 pattern: String,
 primitiveType: PrimitiveType = PrimitiveType.string,
 sample: Option[String] = None,
 comment: Option[String] = None,
 stat: Option[Stat] = None
) {
 type ValidationResult[A] = Validated[List[String], A]

 def checkValidity(): ValidationResult[Boolean] = {
  val errorList: mutable.MutableList[String] = mutable.MutableList.empty

  val patternIsValid = Try {
   primitiveType match {
    case PrimitiveType.struct =>
    case PrimitiveType.date =>
      new SimpleDateFormat(pattern)
    case PrimitiveType.timestamp =>
      pattern match {
        case "epoch_second" | "epoch_milli" =>
        case _ if PrimitiveType.formatters.keys.toList.contains(pattern) =>
        case _ =>
          DateTimeFormatter.ofPattern(pattern)
      }
    case _ …