hakobe · July 14, 2009 12:35
diff --git a/contra_variant.scala b/contra_variant.scala

 class Applyer[-A, +B]( f :(A => B)) {
    def apply(x:A) :B = {
        this.f(x)
    }
 }

 val a = new Applyer[String, int]( {x :AnyRef => x.hashCode} )
 println(
    a.apply("hello")
 )

	class Applyer[-A, +B]( f :(A => B)) {
	def apply(x:A) :B = {
	this.f(x)
	}
	}

	val a = new Applyer[String, int]( {x :AnyRef => x.hashCode} )
	println(
	a.apply("hello")
	)
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