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comparison agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/basic/BasicType.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2001 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.debugger.cdbg.basic;
26
27 import java.util.*;
28 import sun.jvm.hotspot.debugger.*;
29 import sun.jvm.hotspot.debugger.cdbg.*;
30
31 public abstract class BasicType implements Type, CVAttributes {
32 private String name;
33 private int size;
34 private int cvAttributes;
35 // Types keep a list of const/volatile qualified variants of themselves
36 private List cvVariants;
37
38 protected BasicType(String name, int size) {
39 this(name, size, 0);
40 }
41
42 protected BasicType(String name, int size, int cvAttributes) {
43 this.name = name;
44 this.size = size;
45 this.cvAttributes = cvAttributes;
46 }
47
48 public String getName() { return name; }
49
50 /** For use during resolution only */
51 protected void setName(String name) { this.name = name; }
52
53 public int getSize() { return size; }
54
55 public BitType asBit() { return null; }
56 public IntType asInt() { return null; }
57 public EnumType asEnum() { return null; }
58 public FloatType asFloat() { return null; }
59 public DoubleType asDouble() { return null; }
60 public PointerType asPointer() { return null; }
61 public ArrayType asArray() { return null; }
62 public RefType asRef() { return null; }
63 public CompoundType asCompound() { return null; }
64 public FunctionType asFunction() { return null; }
65 public MemberFunctionType asMemberFunction() { return null; }
66 public VoidType asVoid() { return null; }
67
68 public boolean isBit() { return (asBit() != null); }
69 public boolean isInt() { return (asInt() != null); }
70 public boolean isEnum() { return (asEnum() != null); }
71 public boolean isFloat() { return (asFloat() != null); }
72 public boolean isDouble() { return (asDouble() != null); }
73 public boolean isPointer() { return (asPointer() != null); }
74 public boolean isArray() { return (asArray() != null); }
75 public boolean isRef() { return (asRef() != null); }
76 public boolean isCompound() { return (asCompound() != null); }
77 public boolean isFunction() { return (asFunction() != null); }
78 public boolean isMemberFunction() { return (asMemberFunction() != null); }
79 public boolean isVoid() { return (asVoid() != null); }
80
81 public boolean isConst() { return ((cvAttributes & CONST) != 0); }
82 public boolean isVolatile() { return ((cvAttributes & VOLATILE) != 0); }
83
84 Type resolveTypes(BasicCDebugInfoDataBase db, ResolveListener listener) {
85 if (cvVariants != null) {
86 for (ListIterator iter = cvVariants.listIterator(); iter.hasNext(); ) {
87 iter.set(db.resolveType(this, (BasicType) iter.next(), listener, "resolving const/var variants"));
88 }
89 }
90 return this;
91 }
92 public boolean isLazy() { return false; }
93 public void iterateObject(Address a, ObjectVisitor v) {
94 iterateObject(a, v, null);
95 }
96 public abstract void iterateObject(Address a, ObjectVisitor v, FieldIdentifier f);
97 public Type getCVVariant(int cvAttributes) {
98 Type t = findCVVariant(cvAttributes);
99 if (t != null) return t;
100 t = createCVVariant(cvAttributes);
101 addCVVariant(t);
102 return t;
103 }
104
105 public String toString() {
106 return getName();
107 }
108
109 private int getCVAttributes() { return cvAttributes; }
110 protected abstract Type createCVVariant(int cvAttributes);
111 protected Type findCVVariant(int cvAttributes) {
112 if (cvVariants != null) {
113 for (Iterator iter = cvVariants.iterator(); iter.hasNext(); ) {
114 BasicType t = (BasicType) iter.next();
115 if (t.getCVAttributes() == cvAttributes) return t;
116 }
117 }
118 return null;
119 }
120 protected void addCVVariant(Type t) {
121 if (cvVariants == null) {
122 cvVariants = new ArrayList();
123 }
124 cvVariants.add(t);
125 }
126
127 public abstract void visit(TypeVisitor v);
128 }