1/*
2 * Copyright (c) 2016, 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 */
23package jdk.vm.ci.code.site;
24
25import static jdk.vm.ci.meta.MetaUtil.identityHashCodeString;
26
27/**
28 * Represents a code position with associated additional information.
29 */
30public abstract class Site {
31
32    /**
33     * The position (or offset) of this site with respect to the start of the target method.
34     */
35    public final int pcOffset;
36
37    public Site(int pos) {
38        this.pcOffset = pos;
39    }
40
41    @Override
42    public final int hashCode() {
43        throw new UnsupportedOperationException("hashCode");
44    }
45
46    @Override
47    public String toString() {
48        return identityHashCodeString(this);
49    }
50
51    @Override
52    public abstract boolean equals(Object obj);
53}
54