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-scala: interview questions
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| sealed trait Plus[P] { | |
| def ~+[T <: Plus[T]](x: T, y: T): T | |
| } | |
| sealed trait Int extends Plus[Int] | |
| class PlusInt[PI] extends Plus[PI] { | |
| def ~+[T <: Plus[T]](x: T, y: T) = x.~+(y, x) | |
| } | |
| case class TinyPlusInt() extends PlusInt[Int] | |
| case class HugePlusInt() extends PlusInt[Int] | |
| TinyPlusInt().~+(HugePlusInt(), HugePlusInt()) |
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What's wrong with that code?