Scala example source code file (t2421.scala)

This example Scala source code file (t2421.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

a, forcible, forcible, from, int, int, p, p, test, to, to

The Scala t2421.scala source code

object Test {
  abstract class <~<[-From, +To] extends (From => To)
  implicit def trivial[A]: A <~< A = error("")


  trait Forcible[T]
  implicit val forcibleInt: (Int <~< Forcible[Int]) = error("")

  def headProxy[P <: Forcible[Int]](implicit w: Int <~< P): P = error("")
  
  headProxy 
  // trivial[Int] should not be considered a valid implicit, since w would have type Int <~< Int, 
  // and headProxy's type parameter P cannot be instantiated to Int
}