001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 *  Unless required by applicable law or agreed to in writing, software
012 *  distributed under the License is distributed on an "AS IS" BASIS,
013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 *  See the License for the specific language governing permissions and
015 *  limitations under the License.
016 *
017 */
018package org.apache.bcel.verifier.statics;
019
020import org.apache.bcel.Const;
021import org.apache.bcel.generic.Type;
022
023/**
024 * This class represents the upper half of a DOUBLE variable.
025 */
026public final class DOUBLE_Upper extends Type {
027
028    /** The one and only instance of this class. */
029    private static final DOUBLE_Upper singleton = new DOUBLE_Upper();
030
031    /**
032     * Gets the single instance of this class.
033     *
034     * @return the single instance of this class.
035     */
036    public static DOUBLE_Upper theInstance() {
037        return singleton;
038    }
039
040    /** The constructor; this class must not be instantiated from the outside. */
041    private DOUBLE_Upper() {
042        super(Const.T_UNKNOWN, "Double_Upper");
043    }
044}