package org.aspectj.apache.bcel.generic;

/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" and
 *    "Apache BCEL" must not be used to endorse or promote products
 *    derived from this software without prior written permission. For
 *    written permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    "Apache BCEL", nor may "Apache" appear in their name, without
 *    prior written permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
 * ITS 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */
import org.aspectj.apache.bcel.Constants;

/**
 * Denotes basic type such as int.
 * 
 * @version $Id: BasicType.java,v 1.4 2008/08/28 00:05:57 aclement Exp $
 * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
 */
public final class BasicType extends Type {
	/**
	 * Constructor for basic types such as int, long, `void'
	 * 
	 * @param type one of T_INT, T_BOOLEAN, ..., T_VOID
	 * @see org.aspectj.apache.bcel.Constants
	 */
	BasicType(byte type) {
		super(type, Constants.SHORT_TYPE_NAMES[type]);

		if (type < Constants.T_BOOLEAN || type > Constants.T_VOID) {
			throw new ClassGenException("Invalid type: " + type);
		}
	}

	public static final BasicType getType(byte type) {
		switch (type) {
		case Constants.T_VOID:
			return VOID;
		case Constants.T_BOOLEAN:
			return BOOLEAN;
		case Constants.T_BYTE:
			return BYTE;
		case Constants.T_SHORT:
			return SHORT;
		case Constants.T_CHAR:
			return CHAR;
		case Constants.T_INT:
			return INT;
		case Constants.T_LONG:
			return LONG;
		case Constants.T_DOUBLE:
			return DOUBLE;
		case Constants.T_FLOAT:
			return FLOAT;

		default:
			throw new ClassGenException("Invalid type: " + type);
		}
	}

	/**
	 * @return true if both type objects refer to the same type
	 */
	public boolean equals(Object type) {
		return type instanceof BasicType ? ((BasicType) type).type == this.type : false;
	}
}
