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// more complicated example
abstract class A {
type C[X]
def foo[B](x: C[B]): C[B] = {println("A.C"); x}
def foo[B](x: List[B]): List[B] = {println("A.List"); x}
def give[X]: C[X]
}
class B extends A {
type C[X] = List[X]
override def give[X] = Nil
override def foo[B](x: C[B]): C[B] = {println("B.C"); x} // error: merge error during erasure
val a: A = this
a.foo(a.give[Int]) // what method should be called here in runtime?
}
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