jdk/src/share/classes/com/sun/tools/jdi/CharValueImpl.java
changeset 2 90ce3da70b43
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0:fd16c54261b3 2:90ce3da70b43
       
     1 /*
       
     2  * Copyright 1998-2004 Sun Microsystems, Inc.  All Rights Reserved.
       
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       
     4  *
       
     5  * This code is free software; you can redistribute it and/or modify it
       
     6  * under the terms of the GNU General Public License version 2 only, as
       
     7  * published by the Free Software Foundation.  Sun designates this
       
     8  * particular file as subject to the "Classpath" exception as provided
       
     9  * by Sun in the LICENSE file that accompanied this code.
       
    10  *
       
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
       
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
       
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
       
    14  * version 2 for more details (a copy is included in the LICENSE file that
       
    15  * accompanied this code).
       
    16  *
       
    17  * You should have received a copy of the GNU General Public License version
       
    18  * 2 along with this work; if not, write to the Free Software Foundation,
       
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
       
    20  *
       
    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
       
    22  * CA 95054 USA or visit www.sun.com if you need additional information or
       
    23  * have any questions.
       
    24  */
       
    25 
       
    26 package com.sun.tools.jdi;
       
    27 
       
    28 import com.sun.jdi.*;
       
    29 
       
    30 public class CharValueImpl extends PrimitiveValueImpl
       
    31                            implements CharValue {
       
    32     private char value;
       
    33 
       
    34     CharValueImpl(VirtualMachine aVm,char aValue) {
       
    35         super(aVm);
       
    36 
       
    37         value = aValue;
       
    38     }
       
    39 
       
    40     public boolean equals(Object obj) {
       
    41         if ((obj != null) && (obj instanceof CharValue)) {
       
    42             return (value == ((CharValue)obj).value()) &&
       
    43                    super.equals(obj);
       
    44         } else {
       
    45             return false;
       
    46         }
       
    47     }
       
    48 
       
    49     public int hashCode() {
       
    50         /*
       
    51          * TO DO: Better hash code
       
    52          */
       
    53         return intValue();
       
    54     }
       
    55 
       
    56     public int compareTo(CharValue obj) {
       
    57         char other = obj.value();
       
    58         return value() - other;
       
    59     }
       
    60 
       
    61     public Type type() {
       
    62         return vm.theCharType();
       
    63     }
       
    64 
       
    65     public char value() {
       
    66         return value;
       
    67     }
       
    68 
       
    69     public boolean booleanValue() {
       
    70         return(value == 0)?false:true;
       
    71     }
       
    72 
       
    73     public byte byteValue() {
       
    74         return(byte)value;
       
    75     }
       
    76 
       
    77     public char charValue() {
       
    78         return(char)value;
       
    79     }
       
    80 
       
    81     public short shortValue() {
       
    82         return(short)value;
       
    83     }
       
    84 
       
    85     public int intValue() {
       
    86         return(int)value;
       
    87     }
       
    88 
       
    89     public long longValue() {
       
    90         return(long)value;
       
    91     }
       
    92 
       
    93     public float floatValue() {
       
    94         return(float)value;
       
    95     }
       
    96 
       
    97     public double doubleValue() {
       
    98         return(double)value;
       
    99     }
       
   100 
       
   101     public String toString() {
       
   102         return "" + value;
       
   103     }
       
   104 
       
   105     byte checkedByteValue() throws InvalidTypeException {
       
   106         // Note: since char is unsigned, don't check against MIN_VALUE
       
   107         if (value > Byte.MAX_VALUE) {
       
   108             throw new InvalidTypeException("Can't convert " + value + " to byte");
       
   109         } else {
       
   110             return super.checkedByteValue();
       
   111         }
       
   112     }
       
   113 
       
   114     short checkedShortValue() throws InvalidTypeException {
       
   115         // Note: since char is unsigned, don't check against MIN_VALUE
       
   116         if (value > Short.MAX_VALUE) {
       
   117             throw new InvalidTypeException("Can't convert " + value + " to short");
       
   118         } else {
       
   119             return super.checkedShortValue();
       
   120         }
       
   121     }
       
   122 
       
   123     byte typeValueKey() {
       
   124         return JDWP.Tag.CHAR;
       
   125     }
       
   126 }