author | duke |
Wed, 05 Jul 2017 21:31:37 +0200 | |
changeset 36782 | 6072af7a98be |
parent 29409 | 613987e37f79 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* - Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* - Neither the name of Oracle nor the names of its |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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// Find break or continue inside try..finally in all scripts |
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// in a given directory (recursively). If no directory is specified |
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// the current working directory is scanned for scripts. |
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if (arguments.length == 0) { |
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arguments[0] = "."; |
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} |
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var File = Java.type("java.io.File"); |
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var file = new File(arguments[0]); |
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if (!file.exists()) { |
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print(arguments[0] + " is neither a directory nor a file"); |
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exit(1); |
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} |
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var Files = Java.type("java.nio.file.Files"); |
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var Parser = Java.type("jdk.nashorn.api.tree.Parser"); |
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var SimpleTreeVisitor = Java.type("jdk.nashorn.api.tree.SimpleTreeVisitorES5_1"); |
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var parser = Parser.create("-scripting", "--const-as-var"); |
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function checkFile(file) { |
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// print("checking " + file); |
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var ast = parser.parse(file, print); |
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if (!ast) { |
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return; |
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} |
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// locate 'break/continue' inside try..finally |
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ast.accept(visitor = new (Java.extend(SimpleTreeVisitor)) { |
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lineMap: null, |
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inTryFinally: false, |
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printWarning: function(node, msg) { |
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var pos = node.startPosition; |
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var line = this.lineMap.getLineNumber(pos); |
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var column = this.lineMap.getColumnNumber(pos); |
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print(msg + " found in " + file + " @ " + line + ":" + column); |
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}, |
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visitBreak: function(node, extra) { |
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if (this.inTryFinally) { |
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this.printWarning(node, "break"); |
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} |
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}, |
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visitContinue: function(node, extra) { |
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if (this.inTryFinally) { |
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this.printWarning(node, "continue"); |
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} |
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}, |
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visitCompilationUnit: function(node, extra) { |
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this.lineMap = node.lineMap; |
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Java.super(visitor).visitCompilationUnit(node, extra); |
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}, |
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visitFunctionDeclaration: function(node, extra) { |
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var oldInTryFinally = this.inTryFinally; |
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this.inTryFinally = false; |
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try { |
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Java.super(visitor).visitFunctionDeclaration(node, extra); |
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} finally { |
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this.inTryFinally = oldInTryFinally; |
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} |
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}, |
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visitFunctionExpression: function(node, extra) { |
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var oldInTryFinally = this.inTryFinally; |
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this.inTryFinally = false; |
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try { |
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Java.super(visitor).visitFunctionExpression(node, extra); |
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} finally { |
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this.inTryFinally = oldInTryFinally; |
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} |
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}, |
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visitTry: function(node, extra) { |
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var oldInTryFinally = this.inTryFinally; |
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this.inTryFinally = (node.finallyBlock != null); |
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try { |
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Java.super(visitor).visitTry(node, extra); |
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} finally { |
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this.inTryFinally = oldInTryFinally; |
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} |
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} |
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}, null); |
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} |
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if (file.isDirectory()) { |
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Files.walk(file.toPath()) |
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.filter(function(p) Files.isRegularFile(p)) |
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.filter(function(p) p.toFile().name.endsWith('.js')) |
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.forEach(checkFile); |
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} else { |
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checkFile(file); |
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} |