Created
February 15, 2015 15:53
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Type mismatch when casting generic parameter to an existential type
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| trait A[T] { def print(t: T) } | |
| trait B[T] { def ret: T } | |
| case class Wrapper[T](a: A[T], b: B[T]) | |
| val wrapper = Wrapper[String](null, null) | |
| wrapper.a.print(wrapper.b.ret) /* Compiles */ | |
| val anyWrapper = wrapper.asInstanceOf[Wrapper[_]] | |
| anyWrapper.a.print(wrapper.b.ret) /* Does not compile */ |
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