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trait Sequ[+A] {
def toArray: Array[T forSome {type T <: A}]
}
class RichStr extends Sequ[Char] {
// override to a primitive array
def toArray: Array[Char] = new Array[Char](10)
}
object Foo extends App {
val x: RichStr = new RichStr
println(x.toArray) // call directly
println((x: Sequ[Char]).toArray) // calling through the bridge misses unboxing
}
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