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| trait Stringify { | |
| val id: String | |
| override def toString() = id | |
| } | |
| case class Username(id: String) extends Stringify | |
| case class Password(id: String) extends Stringify | |
| def login(u: Username, p: Password) = { | |
| println("Login using u:" + u + " p:" + p) | |
| } | |
| login(Username("admin"), Password("pass")) |
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