Tue, 10 Mar 2015 15:34:16 -0700
8074662: Update 3rd party readme and license for LibPNG v 1.6.16
Reviewed-by: jeff
1 #// Usage: jjs find_nonfinals2.js -- <directory>
3 /*
4 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * - Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * - Neither the name of Oracle nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
22 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
25 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
34 // This example demonstrates Java subclassing by Java.extend
35 // and javac Compiler and Tree API. This example finds method
36 // parameters without "final" keyword and prints info on those.
38 if (arguments.length == 0) {
39 print("Usage: jjs find_nonfinals2.js -- <directory>");
40 exit(1);
41 }
43 // Java types used
44 var File = Java.type("java.io.File");
45 var Files = Java.type("java.nio.file.Files");
46 var FileVisitOption = Java.type("java.nio.file.FileVisitOption");
47 var StringArray = Java.type("java.lang.String[]");
48 var ToolProvider = Java.type("javax.tools.ToolProvider");
49 var Tree = Java.type("com.sun.source.tree.Tree");
50 var TreeScanner = Java.type("com.sun.source.util.TreeScanner");
51 var Modifier = Java.type("javax.lang.model.element.Modifier");
53 function checkNonFinalParams(p) {
54 // get the system compiler tool
55 var compiler = ToolProvider.systemJavaCompiler;
56 // get standard file manager
57 var fileMgr = compiler.getStandardFileManager(null, null, null);
58 // Using Java.to convert script array (arguments) to a Java String[]
59 var compUnits = fileMgr.getJavaFileObjects(
60 Java.to(arguments, StringArray));
61 // create a new compilation task
62 var task = compiler.getTask(null, fileMgr, null, null, null, compUnits);
63 // subclass SimpleTreeVisitor - to find non-final method params
64 var NonFinalsFinder = Java.extend(TreeScanner);
66 function printMethod(method) {
67 print(method.modifiers + " "+ method.returnType + " " +
68 method.name + "(" + method.parameters + ")");
69 }
71 var pkgName, clsName, compUnitName, lineMap;
72 var visitor = new NonFinalsFinder() {
73 visitCompilationUnit: function(compUnit, p) {
74 pkgName = compUnit.packageName;
75 compUnitName = compUnit.sourceFile.name;
76 lineMap = compUnit.lineMap;
77 return Java.super(visitor).visitCompilationUnit(compUnit, p);
78 },
80 visitClass: function(clazz, p) {
81 clsName = clazz.name;
82 return Java.super(visitor).visitClass(clazz, p);
83 },
85 visitMethod: function (method, p) {
86 var params = method.parameters;
87 for each (var p in params) {
88 var modifiers = p.modifiers;
89 if (! modifiers.flags.contains(Modifier.FINAL)) {
90 print(compUnitName);
91 print(pkgName + "." + clsName);
92 printMethod(method);
93 print("->", p,
94 " @ " + lineMap.getLineNumber(p.pos) + ":" +
95 lineMap.getColumnNumber(p.pos));
96 }
97 }
98 }
99 }
101 for each (var cu in task.parse()) {
102 cu.accept(visitor, null);
103 }
104 }
106 // for each ".java" file in directory (recursively).
107 function main(dir) {
108 var totalCount = 0;
109 Files.walk(dir.toPath(), FileVisitOption.FOLLOW_LINKS).
110 forEach(function(p) {
111 var name = p.toFile().absolutePath;
112 if (name.endsWith(".java")) {
113 checkNonFinalParams(p);
114 }
115 });
116 }
118 main(new File(arguments[0]));