1/*
2 * Copyright (c) 2001, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25package sun.jvm.hotspot.debugger.cdbg.basic;
26
27import sun.jvm.hotspot.debugger.*;
28import sun.jvm.hotspot.debugger.cdbg.*;
29
30public class BasicField implements Field {
31  private String  name;
32  private Type    type;
33  private int     accessControl;
34  private boolean isStatic;
35  private long    offset;
36  private Address address;
37
38  /** See {@link sun.jvm.hotspot.debugger.cdbg.AccessControl} for
39      valid access control values */
40  public BasicField(String name, Type type, int accessControl, boolean isStatic) {
41    this.name = name;
42    this.type = type;
43    this.accessControl = accessControl;
44  }
45
46  public int getAccessControl() { return accessControl; }
47
48  public String getName() { return name; }
49
50  public Type getType() { return type; }
51
52  public boolean isStatic() { return isStatic; }
53
54  /** Nonstatic fields only: set offset of field */
55  public void setOffset(long offset) {
56    if (isStatic) throw new RuntimeException("Nonstatic fields only");
57    this.offset = offset;
58  }
59
60  /** Nonstatic fields only: get offset of field */
61  public long getOffset() {
62    if (isStatic) throw new RuntimeException("Nonstatic fields only");
63    return offset;
64  }
65
66  /** Static fields only: set address of field. The resolution
67      mechanism will automatically attempt to find the address of the
68      field based on a "class name"::"field name" global symbol lookup
69      in the database if the address has not been set. */
70  public void setAddress(Address address) {
71    if (!isStatic) throw new RuntimeException("Static fields only");
72    this.address = address;
73  }
74
75  /** Static fields only: get address of field */
76  public Address getAddress() {
77    if (!isStatic) throw new RuntimeException("Static fields only");
78    return address;
79  }
80
81  public void resolveTypes(Type containingType, BasicCDebugInfoDataBase db, ResolveListener listener) {
82    type = db.resolveType(containingType, type, listener, "resolving field type");
83    if (isStatic) {
84      if (address == null) {
85        String fieldSymName = getType().getName() + "::" + getName();
86        GlobalSym sym = db.lookupSym(fieldSymName);
87        if (sym == null) {
88          listener.resolveFailed(getType(), getName());
89        } else {
90          address = sym.getAddress();
91        }
92      }
93    }
94  }
95}
96