/*
 * Copyright (c) 2011-2015 Pivotal Software Inc., Inc. All Rights Reserved.
 *
 * 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 reactor.groovy.support

import groovy.transform.CompileStatic
import reactor.fn.Function
import reactor.fn.tuple.Tuple2
/**
 * @author Stephane Maldini
 * @author Jon Brisbin
 */
@CompileStatic
class ClosureReduce<T, V> implements Function<Tuple2<T, V>, V> {

  final Closure<V> callback

  ClosureReduce(Closure<V> cl) {
    callback = cl
  }

  @Override
  V apply(Tuple2<T, V> t) {

    if (t.t2)
      callback t.t1, t.t2
    else
      callback t.t1
  }
}
