org.scalatest.InsertionOrderSet.scala Maven / Gradle / Ivy

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/*
 * Copyright 2001-2016 Artima, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.scalatest

private[scalatest] object InsertionOrderSet {
  def apply[A](elements: List[A]): Set[A] =
    scala.collection.immutable.SortedSet(elements: _*)(new Ordering[A] {
      def compare(x: A, y: A): Int = elements.indexOf(x) compare elements.indexOf(y)
    })
}