test/langtools/tools/javac/lambda/methodReferenceExecution/MethodReferenceIntersectionInducedTest.java - master - githubmirror/panama-vector

test/langtools/tools/javac/lambda/methodReferenceExecution/MethodReferenceIntersectionInducedTest.java

54 строки2 KB

Srikanth Adayapalam

8191655: LambdaConversionException: Invalid receiver type interface; not a subtype of implementation type interface

22 ноя 2017, 15:37

22 ноя 2017, 15:3714e7d88

/*
 * Copyright (c) 2017, 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 8191655
 * @summary LambdaConversionException: Invalid receiver type interface; not a subtype of implementation type interface
 * @run main MethodReferenceIntersectionInducedTest
 */


import java.util.function.Consumer;
public class MethodReferenceIntersectionInducedTest {
   static String blah;
   <T> void forAll(Consumer<T> consumer, T... values) { consumer.accept(values[0]); }

   public void secondTest() {
       forAll(Picture::draw, new MyPicture(), new Universal());
   }

   interface Shape { void draw(); }
   interface Marker { }
   interface Picture { void draw(); }

   class MyShape implements Marker, Shape { public void draw() { } }
   class MyPicture implements Marker, Picture { public void draw() { blah = "MyPicture"; } }
   class Universal implements Marker, Picture, Shape { public void draw() { System.out.println("Universal"); } }

   public static void main(String[] args) {
       new MethodReferenceIntersectionInducedTest().secondTest();
       if (!blah.equals("MyPicture"))
            throw new AssertionError("Incorrect output");
   }
}