1// Copyright 2016 The Bazel Authors. All rights reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//    http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14package com.google.devtools.build.android.desugar.testdata;
15
16import java.util.List;
17import java.util.concurrent.Callable;
18import java.util.function.Function;
19import java.util.stream.Collectors;
20
21public class Lambda {
22
23  private final List<String> names;
24
25  public Lambda(List<String> names) {
26    this.names = names;
27  }
28
29  public List<String> as() {
30    return names
31        .stream()
32        .filter(n -> n.startsWith("A"))
33        .collect(Collectors.toList());
34  }
35
36  public static Callable<String> hello() {
37    return (Callable<String> & java.util.RandomAccess) () -> "hello";
38  }
39
40  public static Function<Integer, Callable<Long>> mult(int x) {
41    return new Function<Integer, Callable<Long>>() {
42      @Override
43      public Callable<Long> apply(Integer y) {
44        return () -> (long) x * (long) y;
45      }
46    };
47  }
48
49  /**
50   * Test method for b/62456849. This method will first be converted to a synthetic method by {@link
51   * com.google.devtools.build.android.desugar.Bug62456849TestDataGenerator}, and then Desugar
52   * should keep it in this class without desugaring it (such as renaming).
53   *
54   * <p>Please ignore the lint error on the method name. The method name is intentionally chosen to
55   * trigger a bug in Desugar.
56   */
57  public static int lambda$mult$0() {
58    return 0;
59  }
60}
61