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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultFrameTypeConversion.java @ 9258:07f8d136a05e

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Truffle API changes for the Frame API. Introduction of Assumptions class.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Tue, 23 Apr 2013 15:34:06 +0200
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children 494b818b527c
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9257:542712a4732a 9258:07f8d136a05e
1 /*
2 * Copyright (c) 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 package com.oracle.truffle.api.impl;
24
25 import com.oracle.truffle.api.frame.*;
26
27 /**
28 * Interface for defining type conversions for frame slot values.
29 */
30 public class DefaultFrameTypeConversion implements FrameTypeConversion {
31
32 private static final DefaultFrameTypeConversion INSTANCE = new DefaultFrameTypeConversion();
33
34 @Override
35 public Object getDefaultValue() {
36 return null;
37 }
38
39 @Override
40 public void updateFrameSlot(Frame frame, FrameSlot slot, Object value) {
41 FrameUtil.setObjectSafe(frame, slot, value);
42 }
43
44 public static DefaultFrameTypeConversion getInstance() {
45 return INSTANCE;
46 }
47 }