1 /* 2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /** 27 * Parse function returns a JSON object representing ECMAScript code passed. 28 * name is optional name for the code source and location param tells whether to 29 * include location information for AST nodes or not. 30 * 31 * Example: 32 * 33 * load("nashorn:parser.js"); 34 * try { 35 * var json = parse("print('hello')"); 36 * print(JSON.stringify(json)); 37 * } catch (e) { 38 * print(e); 39 * } 40 */ 41 function parse(/*code, [name], [location]*/) { 42 var code, name = "<unknown>", location = false; 43 switch (arguments.length) { 44 case 3: 45 location = arguments[2]; 46 case 2: 47 name = arguments[1]; 48 case 1: 49 code = arguments[0]; 50 } 51 52 var jsonStr = Packages.jdk.nashorn.api.scripting.ScriptUtils.parse(code, name, location); 53 return JSON.parse(jsonStr, 54 function (prop, value) { 55 if (typeof(value) == 'string' && prop == "value") { 56 // handle regexps and strings - both are encoded as strings but strings 57 // do not start with '/'. If regexp, then eval it to make RegExp object 58 return value.startsWith('/')? eval(value) : value.substring(1); 59 } else { 60 // anything else is returned "as is" 61 return value; 62 } 63 }); 64 } 65