Mercurial > jdk8-mips64-public > nashorn / file comparison
comparison: samples/javahelp.js
samples/javahelp.js
- changeset 1576
- 398c895674d0
- parent 1404
- 271aceb4b3f0
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| 1575:beb3ae08caf1 | 1576:398c895674d0 |
|---|---|
| 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; |
