1 /*
   2  * reserved comment block
   3  * DO NOT REMOVE OR ALTER!
   4  */
   5 package com.sun.org.apache.bcel.internal.generic;
   6 
   7 /* ====================================================================
   8  * The Apache Software License, Version 1.1
   9  *
  10  * Copyright (c) 2001 The Apache Software Foundation.  All rights
  11  * reserved.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  *
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  *
  20  * 2. Redistributions in binary form must reproduce the above copyright
  21  *    notice, this list of conditions and the following disclaimer in
  22  *    the documentation and/or other materials provided with the
  23  *    distribution.
  24  *
  25  * 3. The end-user documentation included with the redistribution,
  26  *    if any, must include the following acknowledgment:
  27  *       "This product includes software developed by the
  28  *        Apache Software Foundation (http://www.apache.org/)."
  29  *    Alternately, this acknowledgment may appear in the software itself,
  30  *    if and wherever such third-party acknowledgments normally appear.
  31  *
  32  * 4. The names "Apache" and "Apache Software Foundation" and
  33  *    "Apache BCEL" must not be used to endorse or promote products
  34  *    derived from this software without prior written permission. For
  35  *    written permission, please contact apache@apache.org.
  36  *
  37  * 5. Products derived from this software may not be called "Apache",
  38  *    "Apache BCEL", nor may "Apache" appear in their name, without
  39  *    prior written permission of the Apache Software Foundation.
  40  *
  41  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
  42  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  43  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  44  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
  45  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  46  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  47  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  48  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  49  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  50  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  51  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  52  * SUCH DAMAGE.
  53  * ====================================================================
  54  *
  55  * This software consists of voluntary contributions made by many
  56  * individuals on behalf of the Apache Software Foundation.  For more
  57  * information on the Apache Software Foundation, please see
  58  * <http://www.apache.org/>.
  59  */
  60 import com.sun.org.apache.bcel.internal.Constants;
  61 
  62 /**
  63  * Denotes basic type such as int.
  64  *
  65  * @author  <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
  66  */
  67 public final class BasicType extends Type {
  68   /**
  69    * Constructor for basic types such as int, long, `void'
  70    *
  71    * @param type one of T_INT, T_BOOLEAN, ..., T_VOID
  72    * @see com.sun.org.apache.bcel.internal.Constants
  73    */
  74   BasicType(byte type) {
  75     super(type, Constants.SHORT_TYPE_NAMES[type]);
  76 
  77     if((type < Constants.T_BOOLEAN) || (type > Constants.T_VOID))
  78       throw new ClassGenException("Invalid type: " + type);
  79   }
  80 
  81   public static final BasicType getType(byte type) {
  82     switch(type) {
  83     case Constants.T_VOID:    return VOID;
  84     case Constants.T_BOOLEAN: return BOOLEAN;
  85     case Constants.T_BYTE:    return BYTE;
  86     case Constants.T_SHORT:   return SHORT;
  87     case Constants.T_CHAR:    return CHAR;
  88     case Constants.T_INT:     return INT;
  89     case Constants.T_LONG:    return LONG;
  90     case Constants.T_DOUBLE:  return DOUBLE;
  91     case Constants.T_FLOAT:   return FLOAT;
  92 
  93     default:
  94       throw new ClassGenException("Invalid type: " + type);
  95     }
  96   }
  97 
  98   /** @return true if both type objects refer to the same type
  99    */
 100   public boolean equals(Object type) {
 101     return (type instanceof BasicType)?
 102       ((BasicType)type).type == this.type : false;
 103   }
 104 }