| // Copyright 2016 The Bazel Authors. 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 com.google.devtools.build.android.desugar.testdata; |
| |
| import com.google.devtools.build.android.desugar.testdata.separate.SeparateInterface; |
| import java.util.List; |
| import java.util.function.Function; |
| import java.util.stream.Collectors; |
| |
| public class ConcreteFunction implements SpecializedFunction<String, Long> { |
| @Override |
| public Long apply(String input) { |
| return Long.valueOf(input); |
| } |
| |
| // SpecializedParser makes it so we have to search multiple extended interfaces for bridge methods |
| // when desugaring the lambda returned by this method. |
| public static SpecializedParser<Integer> toInt() { |
| return (s -> Integer.valueOf(s)); |
| } |
| |
| public static SeparateInterface<Long> isInt() { |
| return (l -> Integer.MIN_VALUE <= l && l <= Integer.MAX_VALUE); |
| } |
| |
| public static <T extends Number> List<T> parseAll(List<String> in, |
| SpecializedFunction<String, T> parser) { |
| return in.stream().map(parser).collect(Collectors.toList()); |
| } |
| |
| public static <T extends Number> List<T> doFilter(List<T> in, SeparateInterface<T> filter) { |
| return in.stream().filter(filter).collect(Collectors.toList()); |
| } |
| |
| interface Parser<T> extends Function<String, T> { |
| @Override public T apply(String in); |
| } |
| |
| public interface SpecializedParser<T extends Number> |
| extends SpecializedFunction<String, T>, Parser<T> { |
| @Override public T apply(String in); |
| } |
| } |