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/*
* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8003280
* @summary Add lambda tests
* check overload resolution and target type inference w.r.t. generic methods
* @author Maurizio Cimadamore
* @run main TargetType03
*/
import java.util.*;
public class TargetType03 {
interface Mapper<X,Y> {
Y myMap(X a);
}
static class MapperList<A> extends ArrayList<A> {
public <B> List<B> myMap(Mapper<A, B> mapper) {
ArrayList<B> mappedList = new ArrayList<>();
for (A elem : this) {
mappedList.add(mapper.myMap(elem));
}
return mappedList;
};
}
public static void main(String[] args) {
MapperList<Integer> numbers = new MapperList<>();
numbers.add(1);
numbers.add(2);
numbers.add(3);
numbers.add(4);
numbers.add(5);
List<Integer> sqNumbers = numbers.myMap(a -> a * a);
//check invariants
if (numbers.size() != sqNumbers.size()) {
throw new AssertionError();
}
for (int i = 0; i < numbers.size() ; i ++) {
if (sqNumbers.get(i) != Math.pow(numbers.get(i), 2)) {
throw new AssertionError();
}
}
}
}
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