jdk8-mips64-public/langtools: test/tools/javac/lambda/lambdaExecution/TMapper.java@5ddecb91d843

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) 2010, 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.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 /**

    27  * Given an input object maps to an appropriate output object. A mapper may

    28  * variously provide a mapping between types, object instances or keys and

    29  * values or any other form of transformation upon the input.

    30  *

    31  * <p/>All mapper implementations are expected to:

    32  * <ul>

    33  *  <li>Provide stable results such that for any {@code t} the result of two

    34  * {@code map} operations are always equivalent. ie.<pre>

    35  * Foo one = mapper.map(a);

    36  * Foo two = mapper.map(a);

    37  *

    38  * assert one.equals(two) && two.equals(one);

    39  * </pre></li>

    40  * <li>Equivalent input objects should map to equivalent output objects. ie.<pre>

    41  * assert a.equals(b);  // a and b are equivalent

    42  *

    43  * Foo x = mapper.map(a);

    44  * Foo y = mapper.map(b);

    45  *

    46  * assert x.equals(y); // their mapped results should be as equivalent.

    47  * </pre></li>

    48  * <li>The mapper should not modify the input object in any way that would

    49  * change the mapping.</li>

    50  * <li>When used for aggregate operations upon many elements mappers

    51  * should not assume that the {@code map} operation will be called upon elements

    52  * in any specific order.</li>

    53  * </ul>

    54  *

    55  * @param <R> the type of output objects from {@code map} operation. May be the

    56  * @param <T> the type of input objects provided to the {@code map} operation.

    57  * same type as {@code <T>}.

    58  */

    59 public interface TMapper<R, T> {

    61     /**

    62      * Map the provided input object to an appropriate output object.

    63      *

    64      * @param t the input object to be mapped.

    65      * @return the mapped output object.

    66      */

    67     R map(T t);

    68 }

Mercurial > jdk8-mips64-public > langtools / file revision

test/tools/javac/lambda/lambdaExecution/TMapper.java@5ddecb91d843

test/tools/javac/lambda/lambdaExecution/TMapper.java