Created
October 4, 2018 19:21
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Type class reference
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| sealed trait Addable[T] { | |
| def add(a: T, b: T): T | |
| } | |
| object AddableInstances { | |
| implicit val intAddable = new Addable[Int] { | |
| override def add(a: Int, b: Int): Int = a + b | |
| } | |
| } | |
| def add[T: Addable](a: T, b: T): T = implicitly[Addable[T]].add(a, b) | |
| import AddableInstances._ | |
| add(1, 2) |
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