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/*
* Copyright (c) 2018-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import java.util.Collection;
import java.util.concurrent.ConcurrentLinkedQueue;
public class CollectionTest {
interface MyCollection<E> extends Collection<E> {}
void iterate_over_mycollection(MyCollection<Integer> list) {
for (int i = 0, size = list.size(); i < size; ++i) {}
}
void iterate_over_some_java_collection(
ConcurrentLinkedQueue<MyCollection<Integer>> mSubscribers) {
for (MyCollection<Integer> list : mSubscribers) {}
}
// Expected |mSubscribers| * |list| but we get T
// because we are not tracking elements of collections
void iterate_over_mycollection_quad_FP(
ConcurrentLinkedQueue<MyCollection<Integer>> mSubscribers) {
for (MyCollection<Integer> list : mSubscribers) {
iterate_over_mycollection(list);
}
}
}