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annotate graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/InstrumentationTest.java @ 18236:6a05fba906be

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igv: fix coloring for 'Param' nodes (formerly 'Local')
author Bernhard Urban <bernhard.urban@jku.at>
date Tue, 04 Nov 2014 13:03:21 +0100
parents 5d16da2ca0c8
children e3c95cbbb50c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2014, 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;
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24
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25 import java.util.*;
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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.*;
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30 import com.oracle.truffle.api.frame.*;
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31 import com.oracle.truffle.api.instrument.*;
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32 import com.oracle.truffle.api.nodes.*;
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33 import com.oracle.truffle.api.source.*;
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34
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35 /**
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36 * <h3>AST Instrumentation</h3>
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37 *
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38 * Instrumentation allows the insertion into Truffle ASTs language-specific instances of
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39 * {@link Wrapper} that propagate {@link ExecutionEvents} through a {@link Probe} to any instances
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40 * of {@link Instrument} that might be attached to the particular probe by tools.
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41 * <ol>
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42 * <li>Creates a simple add AST</li>
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43 * <li>Verifies its structure</li>
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44 * <li>"Probes" the add node by adding a {@link Wrapper} and associated {@link Probe}</li>
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45 * <li>Attaches a simple {@link Instrument} to the node via its {@link Probe}</li>
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46 * <li>Verifies the structure of the probed AST</li>
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47 * <li>Verifies the execution of the probed AST</li>
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48 * <li>Verifies the results observed by the instrument.</li>
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49 * </ol>
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50 * To do these tests, several required classes have been implemented in their most basic form, only
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51 * implementing the methods necessary for the tests to pass, with stubs elsewhere.
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52 */
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53 public class InstrumentationTest {
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54
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55 @Test
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56 public void test() {
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57 // Build a tree
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58 TruffleRuntime runtime = Truffle.getRuntime();
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59 TestChildNode leftChild = new TestChildNode();
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60 TestChildNode rightChild = new TestChildNode();
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61 TestSourceSection sourceSection = new TestSourceSection();
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62 TestAddNode addNode = new TestAddNode(leftChild, rightChild, sourceSection);
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63 TestRootNode rootNode = new TestRootNode(addNode);
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64
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65 // Have to create a call target before checking parent/child relationships
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66 CallTarget target = runtime.createCallTarget(rootNode);
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67
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68 // Check tree structure
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69 Assert.assertEquals(addNode, leftChild.getParent());
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70 Assert.assertEquals(addNode, rightChild.getParent());
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71 Iterator<Node> iterator = addNode.getChildren().iterator();
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72 Assert.assertEquals(leftChild, iterator.next());
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73 Assert.assertEquals(rightChild, iterator.next());
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74 Assert.assertFalse(iterator.hasNext());
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75 Assert.assertEquals(rootNode, addNode.getParent());
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76 iterator = rootNode.getChildren().iterator();
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77 Assert.assertEquals(addNode, iterator.next());
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78 Assert.assertFalse(iterator.hasNext());
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79 Object result = target.call();
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80 Assert.assertEquals(42, result);
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81
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82 // Create another call target, this time with the "probed" add node
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83 TestExecutionContext context = new TestExecutionContext();
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84 TestWrapper wrapper = new TestWrapper(addNode, context);
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85 rootNode = new TestRootNode(wrapper);
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86 target = runtime.createCallTarget(rootNode);
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87
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88 // Check the new tree structure
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89 Assert.assertEquals(addNode, leftChild.getParent());
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90 Assert.assertEquals(addNode, rightChild.getParent());
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91 iterator = addNode.getChildren().iterator();
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92 Assert.assertEquals(leftChild, iterator.next());
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93 Assert.assertEquals(rightChild, iterator.next());
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94 Assert.assertFalse(iterator.hasNext());
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95 Assert.assertEquals(wrapper, addNode.getParent());
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96 iterator = wrapper.getChildren().iterator();
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97 Assert.assertEquals(addNode, iterator.next());
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98 Assert.assertFalse(iterator.hasNext());
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99 Assert.assertEquals(rootNode, wrapper.getParent());
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100 iterator = rootNode.getChildren().iterator();
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101 Assert.assertEquals(wrapper, iterator.next());
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102 Assert.assertFalse(iterator.hasNext());
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103 result = target.call();
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104 Assert.assertEquals(42, result);
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105
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106 // Create some instruments
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107 final TestInstrument instrumentA = new TestInstrument();
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108 final TestInstrument instrumentB = new TestInstrument();
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109
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110 wrapper.getProbe().addInstrument(instrumentA);
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111
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112 result = target.call();
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113 Assert.assertEquals(instrumentA.numInstrumentEnter, 1);
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114 Assert.assertEquals(instrumentA.numInstrumentLeave, 1);
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115 Assert.assertEquals(instrumentB.numInstrumentEnter, 0);
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116 Assert.assertEquals(instrumentB.numInstrumentLeave, 0);
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117 Assert.assertEquals(42, result);
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118
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119 wrapper.getProbe().addInstrument(instrumentB);
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120
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121 result = target.call();
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122 Assert.assertEquals(instrumentA.numInstrumentEnter, 2);
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123 Assert.assertEquals(instrumentA.numInstrumentLeave, 2);
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124 Assert.assertEquals(instrumentB.numInstrumentEnter, 1);
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125 Assert.assertEquals(instrumentB.numInstrumentLeave, 1);
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126 Assert.assertEquals(42, result);
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127
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128 wrapper.getProbe().removeInstrument(instrumentA);
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129
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130 result = target.call();
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131 Assert.assertEquals(instrumentA.numInstrumentEnter, 2);
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132 Assert.assertEquals(instrumentA.numInstrumentLeave, 2);
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133 Assert.assertEquals(instrumentB.numInstrumentEnter, 2);
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134 Assert.assertEquals(instrumentB.numInstrumentLeave, 2);
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135 Assert.assertEquals(42, result);
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136
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137 }
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138
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139 private class TestRootNode extends RootNode {
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140 @Child private RootNode child;
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141
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142 public TestRootNode(RootNode child) {
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143 super(null);
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144 this.child = child;
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145 }
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146
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147 @Override
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148 public Object execute(VirtualFrame frame) {
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149 return child.execute(frame);
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150 }
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151 }
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152
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153 private class TestAddNode extends RootNode {
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154
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155 @Child private TestChildNode left;
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156 @Child private TestChildNode right;
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157
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158 public TestAddNode(TestChildNode left, TestChildNode right, TestSourceSection sourceSection) {
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159 super(sourceSection);
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160 this.left = left;
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161 this.right = right;
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162 }
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163
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164 @Override
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165 public Object execute(VirtualFrame frame) {
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166 return left.execute() + right.execute();
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167 }
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168 }
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169
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170 private class TestChildNode extends Node {
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171
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172 public TestChildNode() {
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173 super(null);
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174 }
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175
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176 public int execute() {
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177 return 21;
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178 }
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179 }
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180
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181 /**
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182 * The wrapper node class is usually language-specific and inherits from the language-specific
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183 * subclass of {@link Node}, not {@RootNode}.
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184 */
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185 private class TestWrapper extends RootNode implements Wrapper {
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186 @Child private RootNode child;
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187 private Probe probe;
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188
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189 public TestWrapper(RootNode child, ExecutionContext context) {
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190 this.child = insert(child);
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191 this.probe = context.createProbe(child.getSourceSection());
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192 }
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193
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194 public Node getChild() {
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195 return child;
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196 }
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197
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198 public Probe getProbe() {
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199 return probe;
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200 }
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201
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202 @Override
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203 public Object execute(VirtualFrame frame) {
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204 probe.enter(child, frame);
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205 Object result;
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206
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207 try {
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208 result = child.execute(frame);
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209 probe.leave(child, frame, result);
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210 } catch (Exception e) {
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211 probe.leaveExceptional(child, frame, e);
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212 throw (e);
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213 }
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214 return result;
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215 }
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216 }
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217
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218 /**
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219 * An "empty" description of the source code that might correspond to a particular AST node. The
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220 * instrumentation framework tracks probes that have been inserted by their source location,
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221 * using this as a key.
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222 */
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223 private class TestSourceSection implements SourceSection {
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224
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225 public Source getSource() {
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226 return null;
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227 }
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228
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229 public int getStartLine() {
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230 return 0;
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231 }
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232
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233 public LineLocation getLineLocation() {
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234 return null;
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235 }
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236
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237 public int getStartColumn() {
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238 return 0;
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239 }
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240
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241 public int getCharIndex() {
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242 return 0;
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243 }
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244
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245 public int getCharLength() {
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246 return 0;
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247 }
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248
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249 public int getCharEndIndex() {
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250 return 0;
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251 }
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252
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253 public String getIdentifier() {
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254 return null;
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255 }
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256
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257 public String getCode() {
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258 return null;
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259 }
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260
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261 public String getShortDescription() {
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262 return null;
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263 }
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264
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265 }
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266
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267 private class TestExecutionContext extends ExecutionContext {
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268
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269 @Override
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270 public String getLanguageShortName() {
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271 return "test";
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272 }
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273
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274 @Override
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275 protected void setSourceCallback(SourceCallback sourceCallback) {
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276 }
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277
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278 }
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279
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280 private class TestInstrument extends Instrument {
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281
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282 public int numInstrumentEnter = 0;
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283 public int numInstrumentLeave = 0;
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284
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285 @Override
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286 public void enter(Node astNode, VirtualFrame frame) {
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287 numInstrumentEnter++;
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288 }
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289
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290 @Override
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291 public void leave(Node astNode, VirtualFrame frame, Object result) {
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292 numInstrumentLeave++;
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293 }
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294 }
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295
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296 }