1 /*
2 * Copyright (c) 2013, 2013, 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
24
25 package jdk.internal.vm.compiler.word;
26
27 /**
28 * Marker interface for all {@link WordBase word types} that have the semantic of a pointer (but not
29 * necessarily all the memory access methods defined in {@link Pointer}).
30 *
31 * @since 1.0
32 */
33 public interface PointerBase extends ComparableWord {
34
35 /**
36 * Returns true if this pointer is the {@link WordFactory#nullPointer null pointer}.
37 *
38 * @since 1.0
39 */
40 boolean isNull();
41
42 /**
|
1 /*
2 * Copyright (c) 2013, 2018, 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
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41 package jdk.internal.vm.compiler.word;
42
43 /**
44 * Marker interface for all {@link WordBase word types} that have the semantic of a pointer (but not
45 * necessarily all the memory access methods defined in {@link Pointer}).
46 *
47 * @since 1.0
48 */
49 public interface PointerBase extends ComparableWord {
50
51 /**
52 * Returns true if this pointer is the {@link WordFactory#nullPointer null pointer}.
53 *
54 * @since 1.0
55 */
56 boolean isNull();
57
58 /**
|