javahelp.js revision 1319:bd783ddc4333 
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
35function 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
54function 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