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annotate truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/StructuredData.java @ 22499:9bba3a7b34be

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Check foreign arguments when accessing ComplexNumber/Sequence objects
author Matthias Grimmer <grimmer@ssw.jku.at>
date Mon, 14 Dec 2015 15:07:19 +0100
parents ec40768d77a6
children 89db2519ef18
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1 /*
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2 * Copyright (c) 2015, 2015, 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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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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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
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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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.tck;
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26
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27 import com.oracle.truffle.api.CallTarget;
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28 import com.oracle.truffle.api.Truffle;
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29 import com.oracle.truffle.api.frame.VirtualFrame;
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30 import com.oracle.truffle.api.interop.ForeignAccess;
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31 import com.oracle.truffle.api.interop.ForeignAccess.Factory;
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32 import com.oracle.truffle.api.interop.Message;
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33 import com.oracle.truffle.api.interop.TruffleObject;
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34 import com.oracle.truffle.api.nodes.RootNode;
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35
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36 final class StructuredData implements TruffleObject {
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37
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38 private final byte[] buffer;
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39 private final Schema schema;
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40
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41 StructuredData(byte[] buffer, Schema schema) {
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42 this.buffer = buffer;
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43 this.schema = schema;
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44 }
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45
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46 public ForeignAccess getForeignAccess() {
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47 return ForeignAccess.create(new StructuredDataForeignAccessFactory());
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48 }
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49
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50 private static class StructuredDataForeignAccessFactory implements Factory {
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51
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52 public boolean canHandle(TruffleObject obj) {
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53 return obj instanceof StructuredData;
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54 }
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55
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56 public CallTarget accessMessage(Message tree) {
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57 // for simplicity: this StructuredData is read-only
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58 if (Message.IS_NULL.equals(tree)) {
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59 return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
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60 } else if (Message.IS_EXECUTABLE.equals(tree)) {
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61 return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
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62 } else if (Message.IS_BOXED.equals(tree)) {
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63 return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
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64 } else if (Message.HAS_SIZE.equals(tree)) {
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65 return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(true));
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66 } else if (Message.READ.equals(tree)) {
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67 return Truffle.getRuntime().createCallTarget(new StructuredDataReadNode());
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68 } else if (Message.GET_SIZE.equals(tree)) {
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69 return Truffle.getRuntime().createCallTarget(new StructuredDataSizeNode());
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70 } else {
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71 throw new IllegalArgumentException(tree.toString() + " not supported");
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72 }
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73 }
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74 }
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75
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76 private static class StructuredDataReadNode extends RootNode {
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77 protected StructuredDataReadNode() {
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78 super(TckLanguage.class, null, null);
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79 }
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80
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81 @Override
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82 public Object execute(VirtualFrame frame) {
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83 StructuredData data = (StructuredData) ForeignAccess.getReceiver(frame);
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84 Number index = TckLanguage.expectNumber(ForeignAccess.getArguments(frame).get(0));
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85 int idx = TckLanguage.checkBounds(index.intValue(), data.schema.length());
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86 return new StructuredDataEntry(data.buffer, data.schema, idx);
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87 }
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88
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89 }
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90
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91 private static class StructuredDataSizeNode extends RootNode {
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92 protected StructuredDataSizeNode() {
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93 super(TckLanguage.class, null, null);
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94 }
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95
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96 @Override
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97 public Object execute(VirtualFrame frame) {
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98 StructuredData data = (StructuredData) ForeignAccess.getReceiver(frame);
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99 return data.schema.length();
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100 }
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101
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102 }
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103 }