jdk8-mips64-public/nashorn: samples/javahelp.js@5a876140bff8

     1 /*

     2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  *

     8  *   - Redistributions of source code must retain the above copyright

     9  *     notice, this list of conditions and the following disclaimer.

    10  *

    11  *   - Redistributions in binary form must reproduce the above copyright

    12  *     notice, this list of conditions and the following disclaimer in the

    13  *     documentation and/or other materials provided with the distribution.

    14  *

    15  *   - Neither the name of Oracle nor the names of its

    16  *     contributors may be used to endorse or promote products derived

    17  *     from this software without specific prior written permission.

    18  *

    19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

    20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

    21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

    23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

    27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

    28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

    29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    30  */

    32 // script helpers to print meta info on Java instances and classes

    34 // print instance methods info on a Java object or static methods info of a Java class

    35 function methods(jobj) {

    36     if (! Java.isJavaObject(jobj)) {

    37         throw new TypeError("not a Java object");

    38     }

    40     var isStatic = Java.isType(jobj);

    41     var obj = Object.bindProperties({}, jobj);

    42     for each (var i in obj) {

    43         if (Java.isJavaMethod(i)) {

    44             var str = String(i);

    45             var idx = str.indexOf(' ');

    46             var overloaded = str.substring(0, idx).endsWith("OverloadedDynamicMethod");

    47             var lastIdx = isStatic? str.lastIndexOf('] on') : str.lastIndexOf(']');

    48             print(str.substring(idx + 1, lastIdx) + (overloaded? "*" : ""))

    49         }

    50     }

    51 }

    53 // print instance field names of a Java object or static field names of a Java class

    54 function fields(jobj) {

    55     if (! Java.isJavaObject(jobj)) {

    56         throw new TypeError("not a Java object");

    57     }

    59     var obj = Object.bindProperties({}, jobj);

    60     for (var i in obj) {

    61         if (! Java.isJavaMethod(obj[i])) {

    62             print(i);

    63         }

    64     }

    65 }

    67 undefined;

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