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Teach patmat that unapplies can be customised
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,5 @@ | ||
object Test { | ||
def main(args: Array[String]): Unit = { | ||
Ttl(1) match { case Ttl(y) => println(y) } | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,7 @@ | ||
final case class Ttl(duration: Int, other: Boolean) | ||
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object Ttl { | ||
def apply(duration: Int) = new Ttl(duration, false) | ||
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def unapply(x: Ttl): Option[Int] = if (x eq null) None else Some(x.duration) | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,13 @@ | ||
final case class Ttl(duration: Int, other: Boolean) | ||
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object Ttl { | ||
def apply(duration: Int) = new Ttl(duration, false) | ||
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def unapply(x: Ttl): Option[Int] = if (x eq null) None else Some(x.duration) | ||
} | ||
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object Test { | ||
def main(args: Array[String]): Unit = { | ||
Ttl(1) match { case Ttl(y) => println(y) } | ||
} | ||
} |