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import scala.collection.{ mutable, immutable, generic, GenTraversableOnce }
package object foo {
@inline implicit class TravOps[A, CC[A] <: GenTraversableOnce[A]](val coll: CC[A]) extends AnyVal {
def build[CC2[X]](implicit cbf: generic.CanBuildFrom[Nothing, A, CC2[A]]): CC2[A] = {
cbf() ++= coll.toIterator result
}
}
}
package foo {
object Test {
def f1[T](xs: Traversable[T]) = xs.to[immutable.Vector]
def f2[T](xs: Traversable[T]) = xs.build[immutable.Vector]
}
}
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