斯卡拉，如何訪問整個匹配：X匹配{case Y（z）as matched =>

Question

scala中是否有語法或方法來訪問case語句中的整個匹配結構？

爲了澄清，如果有一個 「爲」 關鍵詞，我們可以做到這一點：

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

Answer 1

您應該能夠使用@語法：

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

從here