scala.tools.nsc.util.MultiHashMap.scala Maven / Gradle / Ivy

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Compiler for the Scala Programming Language

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package scala.tools.nsc.util

import scala.collection.{ mutable, immutable }

/** A hashmap with set-valued values, and an empty set as default value
 */
class MultiHashMap[K, V] extends mutable.HashMap[K, immutable.Set[V]] {
  override def default(key: K): immutable.Set[V] = Set()
}