http://duoduokou.com/scala/17484212300271630810.html CanBuildFrom[A,B,C] is an implicit and it follows implicit resolution rules determined by the language specification. You can actually look directly here Where does Scala look for implicits? to find all the details.. So the answer is: def seqToSet[T <: A](seq: Seq[T]) (implicit cbf: CanBuildFrom[Seq[T], T#Self, Set[T]]) {}

Scala: Fun with CanBuildFrom « dot kam

WebJul 14, 2024 · Additionally, ++ requires an implicit value of type CanBuildFrom[List[A], B, That] to be available in the scope. This means that the compiler should be able to find a … WebCanBuildFrom ，该类型将给出结果类型 Int ，由于集合是如何在scala中设计的， null 被选为 map 的隐式参数，具有以下扩展签名： def map[B, That](f: A => B)(implicit bf: CanBuildFrom[List[A], B, That]): That 在这个特定的示例中，隐式参数必须是 CanBuildFrom[List[Int]，String，Int] ，不幸的 ... bins blocking pavements

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WebMay 8, 2012 · As I found out through trying.. It may not be an easy task to explain Scala’s CanBuildFrom.. Before I dive into a quick gist, I think it’d be helpful to mention the best explanation of what happens behind the CanBuildFrom’s scenes that can be found on Stack Overflow in this answer.. The gist is, Scala has multiple layers of collections … WebAug 30, 2012 · What you're running into is not necessarily CanBuildFrom itself, or the Array vs. Seq issue. You're running into String which is not higher-kinded, but supports map … Webimport scala.concurrent._ import scala.collection.mutable.Builder import scala.collection.generic.CanBuildFrom import language.higherKinds /** * Linearize asynchronously applies a given function in-order to a sequence of values, producing a Future with the result of the function applications. * Execution of subsequent entries will … bins blackpool