1 /*
   2  * Copyright 2000-2008 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.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *  
  23  */
  24 
  25 package sun.jvm.hotspot.oops;
  26 
  27 import java.io.*;
  28 
  29 public class OopPrinter implements OopVisitor {
  30   public OopPrinter(PrintStream tty) {
  31     this.tty = tty;
  32   }
  33 
  34   PrintStream tty;
  35 
  36   public void prologue() {
  37     Oop.printOopValueOn(getObj(), tty);
  38     tty.println(" (object size = " + getObj().getObjectSize() + ")");
  39   }
  40 
  41   public void epilogue() {
  42     tty.println();
  43   }
  44 
  45 
  46   private Oop obj;
  47   public void setObj(Oop obj) { this.obj = obj; }
  48   public Oop getObj() { return obj; }
  49 
  50 
  51   private void printField(Field field) {
  52     field.printOn(tty);
  53   }
  54 
  55   public void doOop(OopField field, boolean isVMField) {
  56     printField(field);
  57     Oop.printOopValueOn(field.getValue(getObj()), tty);
  58     tty.println();
  59   }
  60 
  61   public void doOop(NarrowOopField field, boolean isVMField) {
  62     printField(field);
  63     Oop.printOopValueOn(field.getValue(getObj()), tty);
  64     tty.println();
  65   }
  66 
  67   public void doChar(CharField field, boolean isVMField) {
  68     printField(field);
  69     char c = field.getValue(getObj()); 
  70     // Fix me: not yet complete
  71     if (Character.isLetterOrDigit(c)) tty.println(c);
  72     else tty.println((int)c);
  73   }
  74   public void doByte(ByteField field, boolean isVMField) {
  75     printField(field);
  76     tty.println(field.getValue(getObj()));
  77   }
  78   public void doBoolean(BooleanField field, boolean isVMField) {
  79     printField(field);
  80     tty.println(field.getValue(getObj()));
  81   }
  82   public void doShort(ShortField field, boolean isVMField) {
  83     printField(field);
  84     tty.println(field.getValue(getObj()));
  85   }
  86   public void doInt(IntField field, boolean isVMField) {
  87     printField(field);
  88     tty.println(field.getValue(getObj()));
  89   }
  90   public void doLong(LongField field, boolean isVMField) {
  91     printField(field);
  92     tty.println(field.getValue(getObj()));
  93   }
  94   public void doFloat(FloatField field, boolean isVMField) {
  95     printField(field);
  96     tty.println(field.getValue(getObj()));
  97   }
  98   public void doDouble(DoubleField field, boolean isVMField) {
  99     printField(field);
 100     tty.println(field.getValue(getObj()));
 101   }
 102   public void doCInt(CIntField field, boolean isVMField) {
 103     printField(field);
 104     tty.println(field.getValue(getObj()));
 105   }
 106 }