--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/sample/nashorn/evalcheck.js	Tue Sep 12 19:03:39 2017 +0200
@@ -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);