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comparison graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/AbstractValue.java @ 21556:48c1ebd24120

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renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Wed, 27 May 2015 00:36:16 +0200
parents graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/AbstractValue.java@082417ac43e4
children 26774dc3a5e7
comparison
equal deleted inserted replaced
21555:d12eaef9af72 21556:48c1ebd24120
1 /*
2 * Copyright (c) 2009, 2014, 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 package com.oracle.jvmci.meta;
24
25 /**
26 * Abstract base class for values.
27 */
28 public abstract class AbstractValue implements Value, KindProvider {
29
30 public static final AllocatableValue ILLEGAL = Value.ILLEGAL;
31
32 private final Kind kind;
33 private final LIRKind lirKind;
34
35 /**
36 * Initializes a new value of the specified kind.
37 *
38 * @param lirKind the kind
39 */
40 protected AbstractValue(LIRKind lirKind) {
41 this.lirKind = lirKind;
42 if (getPlatformKind() instanceof Kind) {
43 this.kind = (Kind) getPlatformKind();
44 } else {
45 this.kind = Kind.Illegal;
46 }
47 }
48
49 /**
50 * Returns a String representation of the kind, which should be the end of all
51 * {@link #toString()} implementation of subclasses.
52 */
53 protected final String getKindSuffix() {
54 return "|" + getKind().getTypeChar();
55 }
56
57 /**
58 * Returns the kind of this value.
59 */
60 public final Kind getKind() {
61 return kind;
62 }
63
64 public final LIRKind getLIRKind() {
65 return lirKind;
66 }
67
68 /**
69 * Returns the platform specific kind used to store this value.
70 */
71 public final PlatformKind getPlatformKind() {
72 return lirKind.getPlatformKind();
73 }
74
75 @Override
76 public int hashCode() {
77 return 41 + lirKind.hashCode();
78 }
79
80 @Override
81 public boolean equals(Object obj) {
82 if (obj instanceof AbstractValue) {
83 AbstractValue that = (AbstractValue) obj;
84 return kind.equals(that.kind) && lirKind.equals(that.lirKind);
85 }
86 return false;
87 }
88
89 /**
90 * Checks if this value is identical to {@code other}.
91 *
92 * Warning: Use with caution! Usually equivalence {@link #equals(Object)} is sufficient and
93 * should be used.
94 */
95 @ExcludeFromIdentityComparisonVerification
96 public final boolean identityEquals(AbstractValue other) {
97 return this == other;
98 }
99 }