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1 /*
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2 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.debugger.cdbg.basic;
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26
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27 import java.util.*;
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28 import sun.jvm.hotspot.debugger.*;
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29 import sun.jvm.hotspot.debugger.cdbg.*;
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30
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31 public abstract class BasicType implements Type, CVAttributes {
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32 private String name;
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33 private int size;
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34 private int cvAttributes;
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35 // Types keep a list of const/volatile qualified variants of themselves
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36 private List cvVariants;
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37
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38 protected BasicType(String name, int size) {
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39 this(name, size, 0);
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40 }
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41
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42 protected BasicType(String name, int size, int cvAttributes) {
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43 this.name = name;
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44 this.size = size;
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45 this.cvAttributes = cvAttributes;
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46 }
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47
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48 public String getName() { return name; }
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49
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50 /** For use during resolution only */
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51 protected void setName(String name) { this.name = name; }
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52
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53 public int getSize() { return size; }
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54
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55 public BitType asBit() { return null; }
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56 public IntType asInt() { return null; }
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57 public EnumType asEnum() { return null; }
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58 public FloatType asFloat() { return null; }
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59 public DoubleType asDouble() { return null; }
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60 public PointerType asPointer() { return null; }
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61 public ArrayType asArray() { return null; }
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62 public RefType asRef() { return null; }
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63 public CompoundType asCompound() { return null; }
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64 public FunctionType asFunction() { return null; }
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65 public MemberFunctionType asMemberFunction() { return null; }
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66 public VoidType asVoid() { return null; }
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67
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68 public boolean isBit() { return (asBit() != null); }
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69 public boolean isInt() { return (asInt() != null); }
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70 public boolean isEnum() { return (asEnum() != null); }
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71 public boolean isFloat() { return (asFloat() != null); }
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72 public boolean isDouble() { return (asDouble() != null); }
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73 public boolean isPointer() { return (asPointer() != null); }
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74 public boolean isArray() { return (asArray() != null); }
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75 public boolean isRef() { return (asRef() != null); }
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76 public boolean isCompound() { return (asCompound() != null); }
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77 public boolean isFunction() { return (asFunction() != null); }
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78 public boolean isMemberFunction() { return (asMemberFunction() != null); }
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79 public boolean isVoid() { return (asVoid() != null); }
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80
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81 public boolean isConst() { return ((cvAttributes & CONST) != 0); }
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82 public boolean isVolatile() { return ((cvAttributes & VOLATILE) != 0); }
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83
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84 Type resolveTypes(BasicCDebugInfoDataBase db, ResolveListener listener) {
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85 if (cvVariants != null) {
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86 for (ListIterator iter = cvVariants.listIterator(); iter.hasNext(); ) {
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87 iter.set(db.resolveType(this, (BasicType) iter.next(), listener, "resolving const/var variants"));
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88 }
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89 }
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90 return this;
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91 }
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92 public boolean isLazy() { return false; }
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93 public void iterateObject(Address a, ObjectVisitor v) {
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94 iterateObject(a, v, null);
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95 }
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96 public abstract void iterateObject(Address a, ObjectVisitor v, FieldIdentifier f);
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97 public Type getCVVariant(int cvAttributes) {
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98 Type t = findCVVariant(cvAttributes);
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99 if (t != null) return t;
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100 t = createCVVariant(cvAttributes);
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101 addCVVariant(t);
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102 return t;
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103 }
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104
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105 public String toString() {
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106 return getName();
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107 }
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108
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109 private int getCVAttributes() { return cvAttributes; }
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110 protected abstract Type createCVVariant(int cvAttributes);
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111 protected Type findCVVariant(int cvAttributes) {
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112 if (cvVariants != null) {
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113 for (Iterator iter = cvVariants.iterator(); iter.hasNext(); ) {
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114 BasicType t = (BasicType) iter.next();
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115 if (t.getCVAttributes() == cvAttributes) return t;
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116 }
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117 }
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118 return null;
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119 }
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120 protected void addCVVariant(Type t) {
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121 if (cvVariants == null) {
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122 cvVariants = new ArrayList();
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123 }
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124 cvVariants.add(t);
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125 }
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126
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127 public abstract void visit(TypeVisitor v);
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128 }
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