Scala,如何访问整个匹配:X匹配{case Y(z)匹配=>

Question

在scala中是否有语法或方法来访问case语句中的整个匹配结构？

为了澄清,如果有"as"关键字,可以这样做:

x match {
  case Y(z) as matched =>
    // do stuff both with "matched" and "z" here ...
  ...
}

Answer 1

您应该能够使用以下@语法:

x match {
  case matched @ Y(z) =>
    // do stuff both with "matched" and "z" here ...
  ...
}

从这里开始