test/tools/javac/lambda/LambdaInnerTypeVarReflect.java

Tue, 12 Mar 2013 16:02:43 +0000

author
mcimadamore
date
Tue, 12 Mar 2013 16:02:43 +0000
changeset 1628
5ddecb91d843
parent 0
959103a6100f
permissions
-rw-r--r--

8009545: Graph inference: dependencies between inference variables should be set during incorporation
Summary: Move all transitivity checks into the incorporation round
Reviewed-by: jjg

     1 /*
     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  */
    24 /*
    25  * @test
    26  * @bug 8005653
    27  * @summary A lambda containing an inner class referencing an external type var
    28  * @author  Robert Field
    29  * @run main LambdaInnerTypeVarReflect
    30  */
    32 import java.io.StringWriter;
    33 import java.io.PrintWriter;
    34 import java.io.IOException;
    36 public class LambdaInnerTypeVarReflect {
    38     static int assertionCount = 0;
    40     static void assertTrue(boolean cond) {
    41         assertionCount++;
    42         if (!cond)
    43             throw new AssertionError();
    44     }
    46     interface I {
    47         C doit();
    48     }
    50     abstract class C {
    51         abstract Object it();
    52     }
    54     class TV {
    55         C go() {
    56             return foo("Frump").doit();
    57         }
    59         <RRRRR> I foo(RRRRR r) {
    60             return () -> new C() {
    61                 public RRRRR xxxxx = r;
    62                 @Override
    63                     Object it() { return xxxxx; };
    64             };
    65         }
    66     }
    68     void test1() throws IOException {
    69         char[] buffer = new char[1024];
    70         String innerName = new TV().go().getClass().getName();
    71         StringWriter sw = new StringWriter();
    72         PrintWriter pw = new PrintWriter(sw);
    73         int exitCode = com.sun.tools.javap.Main.run(new String[] {innerName}, pw);
    74         assertTrue(exitCode == 0);
    76         String javapOut = sw.toString();
    77         assertTrue(javapOut.contains(innerName));
    78         assertTrue(!javapOut.contains("RRRRR"));
    79     }
    81     public static void main(String[] args) throws IOException {
    82         LambdaInnerTypeVarReflect t = new LambdaInnerTypeVarReflect();
    83         t.test1();
    84         assertTrue(assertionCount == 3);
    85     }
    86 }

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