Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/oops/Field.java @ 1917:f42a2f0c16bb
6996563: 6984311 changes forgot to update vmStructs.cpp for new field _operands
Summary: Add missing line to vmStructs. Also fix bug with class dumper.
Reviewed-by: twisti, kvn
author | jrose |
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date | Fri, 05 Nov 2010 12:18:30 -0700 |
parents | c18cbe5936b8 |
children | e6b1331a51d2 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.oops; | |
26 | |
27 import java.io.*; | |
28 | |
29 import sun.jvm.hotspot.runtime.*; | |
30 | |
31 // Super class for all fields in an object | |
32 public class Field { | |
33 | |
34 Field(FieldIdentifier id, long offset, boolean isVMField) { | |
35 this.offset = offset; | |
36 this.id = id; | |
37 this.isVMField = isVMField; | |
38 } | |
39 | |
40 /** Constructor for fields that are named in an InstanceKlass's | |
41 fields array (i.e., named, non-VM fields) */ | |
42 Field(InstanceKlass holder, int fieldArrayIndex) { | |
43 this.holder = holder; | |
44 this.fieldArrayIndex = fieldArrayIndex; | |
45 | |
46 ConstantPool cp = holder.getConstants(); | |
47 TypeArray fields = holder.getFields(); | |
48 short access = fields.getShortAt(fieldArrayIndex + InstanceKlass.ACCESS_FLAGS_OFFSET); | |
49 short nameIndex = fields.getShortAt(fieldArrayIndex + InstanceKlass.NAME_INDEX_OFFSET); | |
50 short signatureIndex = fields.getShortAt(fieldArrayIndex + InstanceKlass.SIGNATURE_INDEX_OFFSET); | |
51 offset = VM.getVM().buildIntFromShorts(fields.getShortAt(fieldArrayIndex + InstanceKlass.LOW_OFFSET), | |
52 fields.getShortAt(fieldArrayIndex + InstanceKlass.HIGH_OFFSET)); | |
53 short genericSignatureIndex = fields.getShortAt(fieldArrayIndex + InstanceKlass.GENERIC_SIGNATURE_INDEX_OFFSET); | |
54 Symbol name = cp.getSymbolAt(nameIndex); | |
55 id = new NamedFieldIdentifier(name.asString()); | |
56 signature = cp.getSymbolAt(signatureIndex); | |
57 if (genericSignatureIndex != 0) { | |
58 genericSignature = cp.getSymbolAt(genericSignatureIndex); | |
59 } else { | |
60 genericSignature = null; | |
61 } | |
62 | |
63 fieldType = new FieldType(signature); | |
64 accessFlags = new AccessFlags(access); | |
65 } | |
66 | |
67 private long offset; | |
68 private FieldIdentifier id; | |
69 private boolean isVMField; | |
70 // Java fields only | |
71 private InstanceKlass holder; | |
72 private FieldType fieldType; | |
73 private Symbol signature; | |
74 private Symbol genericSignature; | |
75 private AccessFlags accessFlags; | |
76 private int fieldArrayIndex; | |
77 | |
78 /** Returns the byte offset of the field within the object or klass */ | |
79 public long getOffset() { return offset; } | |
80 | |
81 /** Returns the identifier of the field */ | |
82 public FieldIdentifier getID() { return id; } | |
83 | |
84 /** Indicates whether this is a VM field */ | |
85 public boolean isVMField() { return isVMField; } | |
86 | |
87 /** Indicates whether this is a named field */ | |
88 public boolean isNamedField() { return (id instanceof NamedFieldIdentifier); } | |
89 | |
90 public void printOn(PrintStream tty) { | |
91 getID().printOn(tty); | |
92 tty.print(" {" + getOffset() + "} :"); | |
93 } | |
94 | |
95 /** (Named, non-VM fields only) Returns the InstanceKlass containing | |
96 this (static or non-static) field. */ | |
97 public InstanceKlass getFieldHolder() { | |
98 return holder; | |
99 } | |
100 | |
101 /** (Named, non-VM fields only) Returns the index in the fields | |
102 TypeArray for this field. Equivalent to the "index" in the VM's | |
103 fieldDescriptors. */ | |
104 public int getFieldArrayIndex() { | |
105 return fieldArrayIndex; | |
106 } | |
107 | |
108 /** (Named, non-VM fields only) Retrieves the access flags. */ | |
109 public long getAccessFlags() { return accessFlags.getValue(); } | |
110 public AccessFlags getAccessFlagsObj() { return accessFlags; } | |
111 | |
112 /** (Named, non-VM fields only) Returns the type of this field. */ | |
113 public FieldType getFieldType() { return fieldType; } | |
114 | |
115 /** (Named, non-VM fields only) Returns the signature of this | |
116 field. */ | |
117 public Symbol getSignature() { return signature; } | |
118 public Symbol getGenericSignature() { return genericSignature; } | |
119 | |
120 // | |
121 // Following acccessors are for named, non-VM fields only | |
122 // | |
123 public boolean isPublic() { return accessFlags.isPublic(); } | |
124 public boolean isPrivate() { return accessFlags.isPrivate(); } | |
125 public boolean isProtected() { return accessFlags.isProtected(); } | |
126 public boolean isPackagePrivate() { return !isPublic() && !isPrivate() && !isProtected(); } | |
127 | |
128 public boolean isStatic() { return accessFlags.isStatic(); } | |
129 public boolean isFinal() { return accessFlags.isFinal(); } | |
130 public boolean isVolatile() { return accessFlags.isVolatile(); } | |
131 public boolean isTransient() { return accessFlags.isTransient(); } | |
132 | |
133 public boolean isSynthetic() { return accessFlags.isSynthetic(); } | |
134 public boolean isEnumConstant() { return accessFlags.isEnum(); } | |
135 | |
136 public boolean equals(Object obj) { | |
137 if (obj == null) { | |
138 return false; | |
139 } | |
140 | |
141 if (! (obj instanceof Field)) { | |
142 return false; | |
143 } | |
144 | |
145 Field other = (Field) obj; | |
146 return this.getFieldHolder().equals(other.getFieldHolder()) && | |
147 this.getID().equals(other.getID()); | |
148 } | |
149 | |
150 public int hashCode() { | |
151 return getFieldHolder().hashCode() ^ getID().hashCode(); | |
152 } | |
153 } |