test/tools/javac/lambda/typeInference/InferenceTest3.java

Fri, 30 May 2014 12:54:16 +0200

author
jlahoda
date
Fri, 30 May 2014 12:54:16 +0200
changeset 2410
e64bb2f5f0cf
parent 0
959103a6100f
permissions
-rw-r--r--

8031967: For some sources compiler compiles for ever
Summary: Avoid creating DeferredTypes for method calls with method calls as receivers if the site can be determined reliably
Reviewed-by: mcimadamore, vromero
Contributed-by: maurizio.cimadamore@oracle.com, jan.lahoda@oracle.com

     1 /*
     2  * Copyright (c) 2011, 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 8003280
    27  * @summary Add lambda tests
    28  *  Interface inheritance, sub-interface resolves the type of the super interface.
    29  * @compile InferenceTest3.java
    30  * @run main InferenceTest3
    31  */
    33 import java.io.File;
    34 import java.io.Serializable;
    35 import java.util.Date;
    36 import java.util.Calendar;
    37 import java.util.TimeZone;
    39 public class InferenceTest3 {
    41     private static void assertTrue(boolean cond) {
    42         if (!cond)
    43             throw new AssertionError();
    44     }
    46     public static void main(String[] args) {
    47         InferenceTest3 test = new InferenceTest3();
    48         test.m1(a -> a.getTime());
    49         test.m2(a -> a.toString());
    51         C<String, Integer> c = a -> a.length();
    52         assertTrue(c.m("lambda") == 6);
    54         E<Double, String> e = a -> Double.toHexString(a);
    55         assertTrue(e.m(Double.MAX_VALUE).equals("0x1.fffffffffffffp1023"));
    56         assertTrue(e.m(Double.MIN_VALUE).equals("0x0.0000000000001p-1022"));
    57         assertTrue(e.m(1.0).equals("0x1.0p0"));
    58     }
    60     private void m1(C<Date, Long> c) {
    61         Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
    62         cal.set(1970, 0, 1, 0, 0, 0);
    63         cal.set(Calendar.MILLISECOND, 0);
    64         Date date = cal.getTime();
    65         assertTrue(c.m(date) == 0L);
    66     }
    68     private void m2(E<Integer, String> e) {
    69         assertTrue(e.m(2).equals("2"));
    70     }
    72     interface A<T extends Serializable, U> {
    73         U m(T t);
    74     }
    76     interface C<X extends Serializable, Y extends Number> extends A<X,Y> {}
    78     interface E<X extends Serializable, Y extends String> extends A<X,Y> {}
    79 }

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