--- /dev/null 2015-03-09 08:23:42.456618816 +0530 +++ new/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/tree/LiteralTreeImpl.java 2015-03-09 18:39:23.319798669 +0530 @@ -0,0 +1,67 @@ +/* + * 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 jdk.nashorn.internal.ir.LiteralNode; + +final class LiteralTreeImpl extends ExpressionTreeImpl implements LiteralTree { + private final Object value; + private final Kind kind; + LiteralTreeImpl(final LiteralNode node) { + super(node); + this.kind = literalKind(node); + this.value = node.getValue(); + } + + @Override + public Kind getKind() { + return kind; + } + + @Override + public Object getValue() { + return value; + } + + private static Kind literalKind(final LiteralNode node) { + if (node.isBoolean()) { + return Kind.BOOLEAN_LITERAL; + } else if (node.isNumeric()) { + return Kind.NUMBER_LITERAL; + } else if (node.isString()) { + return Kind.STRING_LITERAL; + } else if (node.isNull()) { + return Kind.NULL_LITERAL; + } else { + throw new AssertionError("should not reach here: " + node.getValue()); + } + } + + @Override + public R accept(TreeVisitor visitor, D data) { + return visitor.visitLiteral(this, data); + } +}