1/*
2 * Copyright 2012, Google Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 *     * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *     * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 *     * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32package org.jf.dexlib2.base.reference;
33
34import org.jf.dexlib2.iface.reference.FieldReference;
35
36import javax.annotation.Nonnull;
37import javax.annotation.Nullable;
38
39public abstract class BaseFieldReference implements FieldReference {
40    @Override
41    public int hashCode() {
42        int hashCode = getDefiningClass().hashCode();
43        hashCode = hashCode*31 + getName().hashCode();
44        return hashCode*31 + getType().hashCode();
45    }
46
47    @Override
48    public boolean equals(@Nullable Object o) {
49        if (o instanceof FieldReference) {
50            FieldReference other = (FieldReference)o;
51            return getDefiningClass().equals(other.getDefiningClass()) &&
52                   getName().equals(other.getName()) &&
53                   getType().equals(other.getType());
54
55        }
56        return false;
57    }
58
59    @Override
60    public int compareTo(@Nonnull FieldReference o) {
61        int res = getDefiningClass().compareTo(o.getDefiningClass());
62        if (res != 0) return res;
63        res = getName().compareTo(o.getName());
64        if (res != 0) return res;
65        return getType().compareTo(o.getType());
66    }
67}
68