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Aug 2nd, 2015
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  1. package misc
  2.  
  3. import scala.reflect.ClassTag
  4. import scala.reflect.runtime.universe._
  5.  
  6. object HigherKind extends App {
  7.  
  8. def generic[G, T[_]](v: T[G])(implicit wtt: WeakTypeTag[T[_]], wtg: WeakTypeTag[G]): Unit = {
  9. println(v)
  10. println(wtg.tpe)
  11. println(wtt.tpe)
  12. println()
  13. }
  14.  
  15. case class Test(x: Int, y: Int)
  16.  
  17. generic(Some(10))
  18. generic(List(10))
  19. generic(1)
  20. generic(1.toByte)
  21. generic("aaa")
  22. generic(Map(1 -> 1))
  23.  
  24. //generic(Test(1,2)) // compiler error: no type parameter for method generic
  25.  
  26. }
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