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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/impl/DefaultFrameTypeConversion.java @ 11279:494b818b527c

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Adding "Classpath" exception to the classes in the com.oracle.truffle.api and the com.oracle.truffle.api.dsl package.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Fri, 09 Aug 2013 11:55:20 +0200
parents 07f8d136a05e
children 269e6794e1ec
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07f8d136a05e Truffle API changes for the Frame API. Introduction of Assumptions class.
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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494b818b527c Adding "Classpath" exception to the classes in the com.oracle.truffle.api and the com.oracle.truffle.api.dsl package.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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7 * published by the Free Software Foundation. Oracle designates this
494b818b527c Adding "Classpath" exception to the classes in the com.oracle.truffle.api and the com.oracle.truffle.api.dsl package.
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8 * particular file as subject to the "Classpath" exception as provided
494b818b527c Adding "Classpath" exception to the classes in the com.oracle.truffle.api and the com.oracle.truffle.api.dsl package.
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
07f8d136a05e Truffle API changes for the Frame API. Introduction of Assumptions class.
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
07f8d136a05e Truffle API changes for the Frame API. Introduction of Assumptions class.
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.api.impl;
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26
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27 import com.oracle.truffle.api.frame.*;
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28
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29 /**
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30 * Interface for defining type conversions for frame slot values.
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31 */
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32 public class DefaultFrameTypeConversion implements FrameTypeConversion {
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33
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34 private static final DefaultFrameTypeConversion INSTANCE = new DefaultFrameTypeConversion();
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35
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36 @Override
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37 public Object getDefaultValue() {
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38 return null;
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39 }
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41 @Override
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42 public void updateFrameSlot(Frame frame, FrameSlot slot, Object value) {
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43 FrameUtil.setObjectSafe(frame, slot, value);
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44 }
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45
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46 public static DefaultFrameTypeConversion getInstance() {
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47 return INSTANCE;
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48 }
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49 }