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  */
  31 
  32 // script helpers to print meta info on Java instances and classes
  33 
  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     }
  39 
  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 }
  52 
  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     }
  58 
  59     var obj = Object.bindProperties({}, jobj);
  60     for (var i in obj) {
  61         if (! Java.isJavaMethod(obj[i])) {
  62             print(i);
  63         }
  64     }
  65 }
  66 
  67 undefined;