| /* |
| * Copyright 2000-2012 JetBrains s.r.o. |
| * |
| * 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. |
| */ |
| import java.util.*; |
| |
| class LambdaTest<TT> { |
| interface BinaryOperator<T> { |
| |
| public T eval(T left, T right); |
| } |
| |
| interface Mapper<T, U> { |
| U map(T t); |
| } |
| |
| public static <T, U> LambdaTest<U> map(final Iterable<? extends T> iterable, final Mapper<? super T, ? extends U> mapper) { |
| return null; |
| } |
| |
| TT reduce(TT base, BinaryOperator<TT> reducer) { |
| return null; |
| } |
| |
| public void test() { |
| final List<String> aStrings = Arrays.asList("1", "2", "3"); |
| map(aStrings, s -> s.length()).reduce(0, (l, r) -> l + r); |
| } |
| } |
| |
| class LambdaTest2<TypeParam> { |
| interface BinaryOperator<T> { |
| public T eval(T left, T right); |
| } |
| |
| interface Mapper<T, U> { |
| U map(T t); |
| } |
| |
| public <U> LambdaTest2<U> map(final Mapper<? super TypeParam, ? extends U> mapper) { |
| return null; |
| } |
| |
| TypeParam reduce(TypeParam base, BinaryOperator<TypeParam> reducer) { |
| return null; |
| } |
| |
| public void test() { |
| final LambdaTest2<String> lt = new LambdaTest2<>(); |
| lt.map(s -> s.length()).reduce(0, (l, r) -> l + r); |
| } |
| } |