Mercurial > hg > truffle
comparison graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/NullConstant.java @ 21556:48c1ebd24120
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 |
comparison
equal
deleted
inserted
replaced
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 } |