Scala example source code file (t3363.scala)

This example Scala source code file (t3363.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

array, array, list, list, manifest, map, map, mapops, mapops, testcase

The Scala t3363.scala source code

object TestCase { 
       
        //now matter if you put (abstract) class or trait it will fail in all cases 
        trait MapOps[T] 
         
        //if fs was reduced to List (generic type with one parameter) then the code compiles 
        //if you inherit from MapOps[T] instead of MapOps[F] then code compiles fine 
        implicit def map2ops[T,F](fs: Map[T,F]) = new MapOps[F] { 
          //if you remove this line, then code compiles 
	    lazy val m: Manifest[T] = error("just something to make it compile") 
	    def is(xs: List[T]) = List(xs) 
	  } 
	 
	  def main(args: Array[String]) { 
	    println(Map(1 -> "2") is List(2)) 
	  } 
	 
	}