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1 /* |
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * |
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4 * Redistribution and use in source and binary forms, with or without |
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5 * modification, are permitted provided that the following conditions |
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6 * are met: |
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7 * |
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8 * - Redistributions of source code must retain the above copyright |
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9 * notice, this list of conditions and the following disclaimer. |
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10 * |
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11 * - Redistributions in binary form must reproduce the above copyright |
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12 * notice, this list of conditions and the following disclaimer in the |
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13 * documentation and/or other materials provided with the distribution. |
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14 * |
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15 * - Neither the name of Oracle nor the names of its |
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16 * contributors may be used to endorse or promote products derived |
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17 * from this software without specific prior written permission. |
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18 * |
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19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
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20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
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21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 */ |
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31 |
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32 // Find break or continue inside try..finally in all scripts |
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33 // in a given directory (recursively). If no directory is specified |
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34 // the current working directory is scanned for scripts. |
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35 |
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36 if (arguments.length == 0) { |
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37 arguments[0] = "."; |
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38 } |
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39 |
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40 var File = Java.type("java.io.File"); |
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41 var file = new File(arguments[0]); |
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42 if (!file.exists()) { |
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43 print(arguments[0] + " is neither a directory nor a file"); |
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44 exit(1); |
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45 } |
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46 |
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47 var Files = Java.type("java.nio.file.Files"); |
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48 var Parser = Java.type("jdk.nashorn.api.tree.Parser"); |
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49 var SimpleTreeVisitor = Java.type("jdk.nashorn.api.tree.SimpleTreeVisitorES5_1"); |
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50 |
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51 var parser = Parser.create("-scripting", "--const-as-var"); |
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52 |
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53 function checkFile(file) { |
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54 // print("checking " + file); |
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55 var ast = parser.parse(file, print); |
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56 if (!ast) { |
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57 return; |
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58 } |
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59 |
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60 // locate 'break/continue' inside try..finally |
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61 ast.accept(visitor = new (Java.extend(SimpleTreeVisitor)) { |
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62 lineMap: null, |
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63 inTryFinally: false, |
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64 |
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65 printWarning: function(node, msg) { |
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66 var pos = node.startPosition; |
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67 var line = this.lineMap.getLineNumber(pos); |
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68 var column = this.lineMap.getColumnNumber(pos); |
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69 print(msg + " found in " + file + " @ " + line + ":" + column); |
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70 }, |
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71 |
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72 visitBreak: function(node, extra) { |
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73 if (this.inTryFinally) { |
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74 this.printWarning(node, "break"); |
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75 } |
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76 }, |
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77 |
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78 visitContinue: function(node, extra) { |
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79 if (this.inTryFinally) { |
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80 this.printWarning(node, "continue"); |
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81 } |
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82 }, |
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83 |
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84 visitCompilationUnit: function(node, extra) { |
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85 this.lineMap = node.lineMap; |
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86 Java.super(visitor).visitCompilationUnit(node, extra); |
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87 }, |
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88 |
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89 visitFunctionDeclaration: function(node, extra) { |
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90 var oldInTryFinally = this.inTryFinally; |
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91 this.inTryFinally = false; |
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92 try { |
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93 Java.super(visitor).visitFunctionDeclaration(node, extra); |
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94 } finally { |
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95 this.inTryFinally = oldInTryFinally; |
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96 } |
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97 }, |
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98 |
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99 visitFunctionExpression: function(node, extra) { |
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100 var oldInTryFinally = this.inTryFinally; |
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101 this.inTryFinally = false; |
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102 try { |
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103 Java.super(visitor).visitFunctionExpression(node, extra); |
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104 } finally { |
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105 this.inTryFinally = oldInTryFinally; |
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106 } |
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107 }, |
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108 |
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109 visitTry: function(node, extra) { |
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110 var oldInTryFinally = this.inTryFinally; |
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111 this.inTryFinally = (node.finallyBlock != null); |
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112 try { |
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113 Java.super(visitor).visitTry(node, extra); |
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114 } finally { |
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115 this.inTryFinally = oldInTryFinally; |
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116 } |
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117 } |
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118 }, null); |
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119 } |
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120 |
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121 |
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122 if (file.isDirectory()) { |
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123 Files.walk(file.toPath()) |
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124 .filter(function(p) Files.isRegularFile(p)) |
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125 .filter(function(p) p.toFile().name.endsWith('.js')) |
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126 .forEach(checkFile); |
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127 } else { |
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128 checkFile(file); |
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129 } |