--- /dev/null	2016-04-06 08:21:44.591466818 +0200
+++ new/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/ir/ClassNode.java	2016-04-26 11:37:34.523842292 +0200
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2015, 2016, 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.internal.ir;
+
+import java.util.Collections;
+import java.util.List;
+
+import jdk.nashorn.internal.codegen.types.Type;
+import jdk.nashorn.internal.ir.visitor.NodeVisitor;
+
+/**
+ * IR representation for class definitions.
+ */
+public class ClassNode extends Expression {
+    private static final long serialVersionUID = 1L;
+
+    private final IdentNode ident;
+    private final Expression classHeritage;
+    private final PropertyNode constructor;
+    private final List<PropertyNode> classElements;
+    private final int line;
+
+    /**
+     * Constructor.
+     *
+     * @param line line number
+     * @param token token
+     * @param finish finish
+     * @param ident ident
+     * @param classHeritage class heritage
+     * @param constructor constructor
+     * @param classElements class elements
+     */
+    public ClassNode(final int line, final long token, final int finish, final IdentNode ident, final Expression classHeritage, final PropertyNode constructor,
+                     final List<PropertyNode> classElements) {
+        super(token, finish);
+        this.line = line;
+        this.ident = ident;
+        this.classHeritage = classHeritage;
+        this.constructor = constructor;
+        this.classElements = classElements;
+    }
+
+    /**
+     * Class identifier. Optional.
+     *
+     * @return the class identifier
+     */
+    public IdentNode getIdent() {
+        return ident;
+    }
+
+    /**
+     * The expression of the {@code extends} clause. Optional.
+     *
+     * @return the class heritage
+     */
+    public Expression getClassHeritage() {
+        return classHeritage;
+    }
+
+    /**
+     * Get the constructor method definition.
+     *
+     * @return the constructor
+     */
+    public PropertyNode getConstructor() {
+        return constructor;
+    }
+
+    /**
+     * Get method definitions except the constructor.
+     *
+     * @return the class elements
+     */
+    public List<PropertyNode> getClassElements() {
+        return Collections.unmodifiableList(classElements);
+    }
+
+    /**
+     * Returns the line number.
+     *
+     * @return the line number
+     */
+    public int getLineNumber() {
+        return line;
+    }
+
+    @Override
+    public Type getType() {
+        return Type.OBJECT;
+    }
+
+    @Override
+    public Node accept(final NodeVisitor<? extends LexicalContext> visitor) {
+        if (visitor.enterClassNode(this)) {
+            return visitor.leaveClassNode(this);
+        }
+
+        return this;
+    }
+
+    @Override
+    public void toString(final StringBuilder sb, final boolean printType) {
+        sb.append("class");
+        if (ident != null) {
+            sb.append(' ');
+            ident.toString(sb, printType);
+        }
+        if (classHeritage != null) {
+            sb.append(" extends");
+            classHeritage.toString(sb, printType);
+        }
+        sb.append(" {");
+        if (constructor != null) {
+            constructor.toString(sb, printType);
+        }
+        for (final PropertyNode classElement : classElements) {
+            sb.append(" ");
+            classElement.toString(sb, printType);
+        }
+        sb.append("}");
+    }
+}