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Add filterKeys for Scala 2.12 collection compat

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Matthew de Detrich 2023-03-19 14:34:35 +01:00 • committed by Matthew de Detrich
parent 33583e027b
commit 44d03df694
1 changed files with 3 additions and 0 deletions
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actor/src/main/scala-2.12/org/apache/pekko/util/ccompat/package.scala
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@ -110,4 +110,7 @@ class MapViewExtensionMethods[K, V, C <: scala.collection.Map[K, V]](
private val self: IterableView[(K, V), C]) extends AnyVal {
def mapValues[W, That](f: V => W)(implicit bf: CanBuildFrom[IterableView[(K, V), C], (K, W), That]): That =
self.map[(K, W), That] { case (k, v) => (k, f(v)) }
def filterKeys(p: K => Boolean): IterableView[(K, V), C] =
self.filter { case (k, _) => p(k) }
}