--- /dev/null	2015-03-09 08:23:42.456618816 +0530
+++ new/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/tree/CompilationUnitTreeImpl.java	2015-03-09 18:39:07.651720978 +0530
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.nashorn.api.tree;
+
+import java.util.List;
+import jdk.nashorn.internal.ir.FunctionNode;
+
+final class CompilationUnitTreeImpl extends TreeImpl
+    implements CompilationUnitTree {
+    private final FunctionNode funcNode;
+    private final List<? extends Tree> elements;
+     
+    CompilationUnitTreeImpl(final FunctionNode node,
+            final List<? extends Tree> elements) {
+        super(node);
+        this.funcNode = node;
+        assert funcNode.getKind() == FunctionNode.Kind.SCRIPT : "script function expected";
+        this.elements = elements;
+    }
+    
+    @Override
+    public Tree.Kind getKind() {
+        return Tree.Kind.COMPILATION_UNIT;
+    }
+    
+    @Override
+    public List<? extends Tree> getSourceElements() {
+        return elements;
+    }
+    
+    @Override
+    public String getSourceName() {
+        return funcNode.getSourceName();
+    }
+    
+    @Override
+    public boolean isStrict() {
+        return funcNode.isStrict();
+    }
+    
+    @Override
+    public LineMap getLineMap() {
+        return new LineMapImpl(funcNode.getSource());
+    }
+    
+    @Override
+    public <R,D> R accept(TreeVisitor<R,D> visitor, D data) {
+        return visitor.visitCompilationUnit(this, data);
+    }
+}