--- /dev/null 2015-03-09 08:23:42.456618816 +0530 +++ new/samples/evalcheck.js 2015-03-09 10:46:03.810973111 +0530 @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * - Neither the name of Oracle nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +// Simple demo of Nashorn Parser API + +var Parser = Java.type("jdk.nashorn.api.tree.Parser"); +var SimpleTreeVisitor = Java.type("jdk.nashorn.api.tree.SimpleTreeVisitorES5_1"); +var IdentifierTree = Java.type("jdk.nashorn.api.tree.IdentifierTree"); + +var parser = Parser.create(); +var ast = parser.parse("t", "eval('hello');\n eval(2 + 3)", print); +// locate 'eval' calls in the script +ast.accept(visitor = new (Java.extend(SimpleTreeVisitor)) { + lineMap: null, + visitCompilationUnit: function(node, extra) { + this.lineMap = node.lineMap; + Java.super(visitor).visitCompilationUnit(node, extra); + }, + + visitFunctionCall: function(node, extra) { + var func = node.functionSelect; + if (func instanceof IdentifierTree && func.name == "eval") { + var pos = node.startPosition; + var line = this.lineMap.getLineNumber(pos); + var column = this.lineMap.getColumnNumber(pos); + print("eval call found @ " + line + ":" + column); + } + } +}, null);