trait AbsFun[@specialized -A, @specialized +B] {
def apply(x: A): B
}
trait MyPartialFunction[-A, +B] extends AnyRef with AbsFun[A, B]
trait ColMap[A, +B] extends MyPartialFunction[A, B] /*with Collection[(A, B)] */
trait ColSorted[K,+A] extends ColRanged[K,A]
trait ColSortedMap[K,+E] extends ColMap[K,E] with ColSorted[K,Tuple2[K,E]]
trait MutMap[A, B] extends AnyRef
with ColMap[A, B]
trait ColRanged[K, +A] //extends Iterable[A]
trait JclRanged[K,A] extends ColRanged[K,A] //with MutableIterable[A] {
trait JclMap[K,E] extends /*collection.jcl.MutableIterable[Tuple2[K,E]] with*/ MutMap[K,E]
trait JclSorted[K,A] extends ColSorted[K,A] with JclRanged[K,A]
trait JclSortedMap[K,E] extends ColSortedMap[K,E] with JclMap[K,E] with JclSorted[K,Tuple2[K,E]]
class Foo[A, B] extends JclSortedMap[A, B] {
def apply(x: A): B = error("NYI")
}
class Bar {
val x: Foo[Int, Int] = new Foo[Int, Int]
x.apply(0)
}