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comparison graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/NullConstant.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/NullConstant.java@082417ac43e4
children
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21555:d12eaef9af72 21556:48c1ebd24120
1 /*
2 * Copyright (c) 2014, 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 * The implementation type of the {@link JavaConstant#NULL_POINTER null constant}.
27 */
28 final class NullConstant extends AbstractValue implements JavaConstant {
29
30 protected NullConstant() {
31 super(LIRKind.reference(Kind.Object));
32 }
33
34 @Override
35 public boolean isNull() {
36 return true;
37 }
38
39 @Override
40 public boolean isDefaultForKind() {
41 return true;
42 }
43
44 @Override
45 public Object asBoxedPrimitive() {
46 throw new IllegalArgumentException();
47 }
48
49 @Override
50 public int asInt() {
51 throw new IllegalArgumentException();
52 }
53
54 @Override
55 public boolean asBoolean() {
56 throw new IllegalArgumentException();
57 }
58
59 @Override
60 public long asLong() {
61 throw new IllegalArgumentException();
62 }
63
64 @Override
65 public float asFloat() {
66 throw new IllegalArgumentException();
67 }
68
69 @Override
70 public double asDouble() {
71 throw new IllegalArgumentException();
72 }
73
74 @Override
75 public String toString() {
76 return JavaConstant.toString(this);
77 }
78
79 @Override
80 public String toValueString() {
81 return "null";
82 }
83
84 @Override
85 public int hashCode() {
86 return 13;
87 }
88
89 @Override
90 public boolean equals(Object o) {
91 return o instanceof NullConstant;
92 }
93 }