95 lines
3.0 KiB
Java
95 lines
3.0 KiB
Java
/*
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* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8016081 8016178
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* @summary structural most specific and stuckness
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* @compile T8016177f.java
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*/
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import java.util.*;
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class T8016177f {
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interface Function<S, T> {
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T apply(S s);
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}
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interface IntFunction<T> {
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T apply(int s);
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}
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interface BiConsumer<X,Y> {
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void m(X x, Y y);
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}
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interface Consumer<X> {
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void m(X x);
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}
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interface Supplier<X> {
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X make();
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}
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interface TestData<T, S extends BaseStream<T, S>> {
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interface OfRef<T> extends TestData<T, Stream<T>> { }
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interface OfDouble extends TestData<Double, DoubleStream> { }
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}
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interface BaseStream<T, S extends BaseStream<T, S>> { }
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interface Stream<T> extends BaseStream<T, Stream<T>> {
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<M> Stream<M> map(Function<T, M> s);
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<R> R collect(Supplier<R> resultFactory, BiConsumer<R, ? super T> accumulator, BiConsumer<R, R> combiner);
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<Z> Z[] toArray(IntFunction<Z[]> s);
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}
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interface DoubleStream extends BaseStream<Double, DoubleStream> {
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DoubleStream filter(DoublePredicate dp);
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double[] toArray();
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}
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interface DoublePredicate {
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boolean p(double d);
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}
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<T, U, R, S_IN extends BaseStream<T, S_IN>, S_OUT extends BaseStream<U, S_OUT>>
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R exerciseTerminalOps(TestData<T, S_IN> data,
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Function<S_IN, S_OUT> streamF,
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Function<S_OUT, R> terminalF) { return null; }
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<O> TestData.OfRef<O> ofCollection(Collection<O> collection) { return null; }
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void test1(TestData.OfDouble data, DoublePredicate dp) {
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exerciseTerminalOps(data, s -> s.filter(dp), s -> s.toArray());
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}
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void test2(Function<Double, Integer> fdi, TestData.OfRef<Double> td, Stream<Integer> si) {
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exerciseTerminalOps(
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ofCollection((List<Double>)null),
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s -> s.map(fdi),
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s -> s.toArray(Integer[]::new));
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}
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}
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