Mercurial > hg > truffle

comparison truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java @ 21951:9c8c0937da41

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameSlot.java@9d55732d0880
children dc83cc1f94f2
comparison
equal deleted inserted replaced
21950:2a5011c7e641 21951:9c8c0937da41
1 /*
2 * Copyright (c) 2012, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package com.oracle.truffle.api.frame;
26
27 import com.oracle.truffle.api.*;
28 import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
29
30 /**
31 * A slot in a frame that can store a value of a given type.
32 */
33 public final class FrameSlot implements Cloneable {
34
35 private final FrameDescriptor descriptor;
36 private final Object identifier;
37 private final Object info;
38 private final int index;
39 @CompilationFinal private FrameSlotKind kind;
40
41 public FrameSlot(FrameDescriptor descriptor, Object identifier, Object info, int index, FrameSlotKind kind) {
42 this.descriptor = descriptor;
43 this.identifier = identifier;
44 this.info = info;
45 this.index = index;
46 this.kind = kind;
47 }
48
49 public Object getIdentifier() {
50 return identifier;
51 }
52
53 public Object getInfo() {
54 return info;
55 }
56
57 public int getIndex() {
58 return index;
59 }
60
61 public FrameSlotKind getKind() {
62 return kind;
63 }
64
65 public void setKind(final FrameSlotKind kind) {
66 if (this.kind != kind) {
67 CompilerDirectives.transferToInterpreter();
68 this.kind = kind;
69 this.descriptor.updateVersion();
70 }
71 }
72
73 @Override
74 public String toString() {
75 return "[" + index + "," + identifier + "," + kind + "]";
76 }
77
78 public FrameDescriptor getFrameDescriptor() {
79 return this.descriptor;
80 }
81 }