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    1   package org.apache.bcel.generic;
    2
    3   /* ====================================================================
    4    * The Apache Software License, Version 1.1
    5    *
    6    * Copyright (c) 2001 The Apache Software Foundation.  All rights
    7    * reserved.
    8    *
    9    * Redistribution and use in source and binary forms, with or without
    10   * modification, are permitted provided that the following conditions
    11   * are met:
    12   *
    13   * 1. Redistributions of source code must retain the above copyright
    14   *    notice, this list of conditions and the following disclaimer.
    15   *
    16   * 2. Redistributions in binary form must reproduce the above copyright
    17   *    notice, this list of conditions and the following disclaimer in
    18   *    the documentation and/or other materials provided with the
    19   *    distribution.
    20   *
    21   * 3. The end-user documentation included with the redistribution,
    22   *    if any, must include the following acknowledgment:
    23   *       "This product includes software developed by the
    24   *        Apache Software Foundation (http://www.apache.org/)."
    25   *    Alternately, this acknowledgment may appear in the software itself,
    26   *    if and wherever such third-party acknowledgments normally appear.
    27   *
    28   * 4. The names "Apache" and "Apache Software Foundation" and
    29   *    "Apache BCEL" must not be used to endorse or promote products
    30   *    derived from this software without prior written permission. For
    31   *    written permission, please contact apache@apache.org.
    32   *
    33   * 5. Products derived from this software may not be called "Apache",
    34   *    "Apache BCEL", nor may "Apache" appear in their name, without
    35   *    prior written permission of the Apache Software Foundation.
    36   *
    37   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    38   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    39   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    40   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
    41   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    42   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    43   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    44   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    45   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    46   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    47   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    48   * SUCH DAMAGE.
    49   * ====================================================================
    50   *
    51   * This software consists of voluntary contributions made by many
    52   * individuals on behalf of the Apache Software Foundation.  For more
    53   * information on the Apache Software Foundation, please see
    54   * <http://www.apache.org/>;.
    55   */
    56  import org.apache.bcel.Constants;
    57
    58  /***
    59   * Denotes basic type such as int.
    60   *
    61   * @version $Id: BasicType.java,v 1.1.1.1 2001/10/29 20:00:06 jvanzyl Exp $
    62   * @author  <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
    63   */
    64  public final class BasicType extends Type {
    65    /***
    66     * Constructor for basic types such as int, long, `void'
    67     *
    68     * @param type one of T_INT, T_BOOLEAN, ..., T_VOID
    69     * @see org.apache.bcel.Constants
    70     */
    71    BasicType(byte type) {
    72      super(type, Constants.SHORT_TYPE_NAMES[type]);
    73
    74      if((type < Constants.T_BOOLEAN) || (type > Constants.T_VOID))
    75        throw new ClassGenException("Invalid type: " + type);
    76    }
    77
    78    public static final BasicType getType(byte type) {
    79      switch(type) {
    80      case Constants.T_VOID:    return VOID;
    81      case Constants.T_BOOLEAN: return BOOLEAN;
    82      case Constants.T_BYTE:    return BYTE;
    83      case Constants.T_SHORT:   return SHORT;
    84      case Constants.T_CHAR:    return CHAR;
    85      case Constants.T_INT:     return INT;
    86      case Constants.T_LONG:    return LONG;
    87      case Constants.T_DOUBLE:  return DOUBLE;
    88      case Constants.T_FLOAT:   return FLOAT;
    89
    90      default:
    91        throw new ClassGenException("Invalid type: " + type);
    92      }
    93    }
    94
    95    /*** @return true if both type objects refer to the same type
    96     */
    97    public boolean equals(Object type) {
    98      return (type instanceof BasicType)?
    99        ((BasicType)type).type == this.type : false;
    100   }
    101 }

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