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annotate truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/nodes/SafeReplaceTest.java @ 22003:5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Sat, 18 Jul 2015 18:03:36 +0200 |
parents | 9c8c0937da41 |
children | dc83cc1f94f2 |
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1 /* |
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2 * Copyright (c) 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. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.truffle.api.test.nodes; |
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24 |
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25 import static org.junit.Assert.*; |
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26 |
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27 import org.junit.*; |
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28 |
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29 import com.oracle.truffle.api.frame.*; |
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30 import com.oracle.truffle.api.nodes.*; |
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31 import com.oracle.truffle.api.test.TestingLanguage; |
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32 |
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33 /** |
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34 * Tests optional method for ensuring that a node replacement is type safe. Ordinary node |
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35 * replacement is performed by unsafe assignment of a parent node's child field. |
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36 */ |
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37 public class SafeReplaceTest { |
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38 |
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39 @Test |
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40 public void testCorrectReplacement() { |
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41 TestRootNode root = new TestRootNode(); |
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42 final TestNode oldChild = new TestNode(); |
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43 final TestNode newChild = new TestNode(); |
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44 root.child = oldChild; |
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45 assertFalse(oldChild.isSafelyReplaceableBy(newChild)); // No parent node |
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46 root.adoptChildren(); |
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47 assertTrue(oldChild.isSafelyReplaceableBy(newChild)); // Now adopted by parent |
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48 // new node |
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49 oldChild.replace(newChild); |
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50 root.execute(null); |
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51 assertEquals(root.executed, 1); |
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52 assertEquals(oldChild.executed, 0); |
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53 assertEquals(newChild.executed, 1); |
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54 } |
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55 |
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56 @Test |
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57 public void testIncorrectReplacement() { |
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58 TestRootNode root = new TestRootNode(); |
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59 final TestNode oldChild = new TestNode(); |
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60 root.child = oldChild; |
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61 root.adoptChildren(); |
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62 final TestNode newChild = new TestNode(); |
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63 final TestNode strayChild = new TestNode(); |
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64 assertFalse(strayChild.isSafelyReplaceableBy(newChild)); // Stray not a child of parent |
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65 final WrongTestNode wrongTypeNewChild = new WrongTestNode(); |
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66 assertFalse(oldChild.isSafelyReplaceableBy(wrongTypeNewChild)); |
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67 } |
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68 |
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69 private static class TestNode extends Node { |
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70 |
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71 private int executed; |
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72 |
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73 public Object execute() { |
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74 executed++; |
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75 return null; |
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76 } |
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77 } |
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78 |
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79 private static class TestRootNode extends RootNode { |
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80 |
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81 @Child TestNode child; |
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82 |
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83 private int executed; |
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84 |
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85 public TestRootNode() { |
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86 super(TestingLanguage.class, null, null); |
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87 } |
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88 |
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89 @Override |
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90 public Object execute(VirtualFrame frame) { |
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91 executed++; |
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92 child.execute(); |
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93 return null; |
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94 } |
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95 } |
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96 |
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97 private static class WrongTestNode extends Node { |
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98 } |
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99 |
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100 } |