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annotate truffle/com.oracle.truffle.tools.test/src/com/oracle/truffle/tools/test/TestNodes.java @ 22219:1c0f490984d5

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Merge with f47b601edbc626dcfe8b3636933b4834c89f7779
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Wed, 16 Sep 2015 15:36:22 -0700
parents dc83cc1f94f2 3aad794eec0e
children 20380d1d41f2
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1 /*
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2 * Copyright (c) 2014, 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
cca166aa28c0 Truffle/Tools: unit tests for new framework and tool instances
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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.tools.test;
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26
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27 import java.lang.reflect.Field;
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28 import java.lang.reflect.InvocationTargetException;
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29 import java.lang.reflect.Method;
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30
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31 import com.oracle.truffle.api.CallTarget;
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32 import com.oracle.truffle.api.Truffle;
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33 import com.oracle.truffle.api.TruffleLanguage;
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34 import com.oracle.truffle.api.frame.VirtualFrame;
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35 import com.oracle.truffle.api.instrument.Instrumenter;
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36 import com.oracle.truffle.api.instrument.KillException;
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37 import com.oracle.truffle.api.instrument.Probe;
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38 import com.oracle.truffle.api.instrument.ProbeNode;
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39 import com.oracle.truffle.api.instrument.ProbeNode.WrapperNode;
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40 import com.oracle.truffle.api.nodes.Node;
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41 import com.oracle.truffle.api.nodes.NodeCost;
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42 import com.oracle.truffle.api.nodes.NodeInfo;
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43 import com.oracle.truffle.api.nodes.RootNode;
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44 import com.oracle.truffle.api.source.LineLocation;
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45 import com.oracle.truffle.api.source.Source;
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46 import com.oracle.truffle.api.source.SourceSection;
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47 import com.oracle.truffle.api.vm.TruffleVM;
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48
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49 /**
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50 * Nodes and an {@linkplain CallTarget executable ASTs} for testing.
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51 */
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52 class TestNodes {
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53
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54 /**
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55 * A fake source used for testing: empty line 1, expression on line 2.
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56 */
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57 public static final Source expr13Source = Source.fromText("\n6+7\n", "Test Source: expression on line 2 that evaluates to 13");
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58 public static final LineLocation expr13Line1 = expr13Source.createLineLocation(1);
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59 public static final LineLocation expr13Line2 = expr13Source.createLineLocation(2);
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60
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61 /**
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62 * An executable addition expression that evaluates to 13.
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63 */
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64 static CallTarget createExpr13TestCallTarget(Instrumenter instrumenter) {
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65 final RootNode rootNode = createExpr13TestRootNode(instrumenter);
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66 return Truffle.getRuntime().createCallTarget(rootNode);
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67 }
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68
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69 /**
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70 * Root holding an addition expression that evaluates to 13.
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71 */
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72 static RootNode createExpr13TestRootNode(Instrumenter instrumenter) {
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73 final TestLanguageNode ast = createExpr13AST();
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74 final TestRootNode rootNode = new TestRootNode(ast, instrumenter);
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75 rootNode.adoptChildren();
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76 return rootNode;
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77 }
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78
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79 static Instrumenter createInstrumenter() throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
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80 TruffleVM vm = TruffleVM.newVM().build();
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81 final Field field = TruffleVM.class.getDeclaredField("instrumenter");
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82 field.setAccessible(true);
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83 final Instrumenter instrument = (Instrumenter) field.get(vm);
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84 return instrument;
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85 }
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86
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87 /**
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88 * Addition expression that evaluates to 13, with faked source attribution.
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89 */
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90 static TestLanguageNode createExpr13AST() {
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91 final SourceSection leftSourceSection = expr13Source.createSection("left", 1, 1);
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92 final TestValueNode leftValueNode = new TestValueNode(6, leftSourceSection);
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93 final SourceSection rightSourceSection = expr13Source.createSection("right", 3, 1);
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94 final TestValueNode rightValueNode = new TestValueNode(7, rightSourceSection);
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95 final SourceSection exprSourceSection = expr13Source.createSection("expr", 1, 3);
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96 return new TestAddNode(leftValueNode, rightValueNode, exprSourceSection);
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97 }
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98
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99 abstract static class TestLanguageNode extends Node {
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100 public abstract Object execute(VirtualFrame frame);
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101
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102 public TestLanguageNode() {
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103 }
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104
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105 public TestLanguageNode(SourceSection srcSection) {
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106 super(srcSection);
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107 }
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108
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109 @Override
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110 public boolean isInstrumentable() {
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111 return true;
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112 }
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113
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114 @Override
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115 public WrapperNode createWrapperNode() {
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116 return new TestWrapperNode(this);
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117 }
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118 }
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119
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120 @NodeInfo(cost = NodeCost.NONE)
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121 static class TestWrapperNode extends TestLanguageNode implements WrapperNode {
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122 @Child private TestLanguageNode child;
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123 @Child private ProbeNode probeNode;
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124
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125 public TestWrapperNode(TestLanguageNode child) {
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126 assert !(child instanceof TestWrapperNode);
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127 this.child = child;
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128 }
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129
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130 @Override
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131 public String instrumentationInfo() {
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132 return "Wrapper node for testing";
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133 }
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134
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135 @Override
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136 public boolean isInstrumentable() {
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137 return false;
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138 }
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139
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140 @Override
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141 public void insertProbe(ProbeNode newProbeNode) {
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142 this.probeNode = newProbeNode;
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143 }
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144
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145 @Override
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146 public Probe getProbe() {
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147 return probeNode.getProbe();
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148 }
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149
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150 @Override
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151 public Node getChild() {
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152 return child;
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153 }
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154
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155 @Override
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156 public Object execute(VirtualFrame frame) {
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157 probeNode.enter(child, frame);
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158 Object result;
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159
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160 try {
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161 result = child.execute(frame);
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162 probeNode.returnValue(child, frame, result);
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163 } catch (KillException e) {
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164 throw (e);
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165 } catch (Exception e) {
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166 probeNode.returnExceptional(child, frame, e);
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167 throw (e);
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168 }
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169
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170 return result;
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171 }
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172 }
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173
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174 /**
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175 * Truffle requires that all guest languages to have a {@link RootNode} which sits atop any AST
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176 * of the guest language. This is necessary since creating a {@link CallTarget} is how Truffle
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177 * completes an AST. The root nodes serves as our entry point into a program.
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178 */
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179 static class TestRootNode extends RootNode {
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180 @Child private TestLanguageNode body;
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181
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182 private final Instrumenter instrumenter;
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183
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184 /**
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185 * This constructor emulates the global machinery that applies registered probers to every
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186 * newly created AST. Global registry is not used, since that would interfere with other
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187 * tests run in the same environment.
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188 */
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189 public TestRootNode(TestLanguageNode body, Instrumenter instrumenter) {
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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.
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190 super(TruffleLanguage.class, null, null);
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191 this.instrumenter = instrumenter;
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192 this.body = body;
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193 }
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194
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195 @Override
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196 public Object execute(VirtualFrame frame) {
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197 return body.execute(frame);
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198 }
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199
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200 @Override
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201 public boolean isCloningAllowed() {
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202 return true;
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203 }
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204
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205 @Override
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206 public void applyInstrumentation() {
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207 Method method;
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208 try {
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209 method = Instrumenter.class.getDeclaredMethod("applyInstrumentation", Node.class);
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diff changeset
210 method.setAccessible(true);
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diff changeset
211 method.invoke(instrumenter, body);
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212 } catch (NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
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213 throw new RuntimeException("TestNodes");
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214 }
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215 }
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216 }
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217
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218 static class TestValueNode extends TestLanguageNode {
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219 private final int value;
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220
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221 public TestValueNode(int value) {
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222 this.value = value;
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223 }
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224
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225 public TestValueNode(int value, SourceSection srcSection) {
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226 super(srcSection);
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227 this.value = value;
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228 }
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229
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230 @Override
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231 public Object execute(VirtualFrame frame) {
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232 return new Integer(this.value);
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233 }
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234 }
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235
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2e3cc2a27711 Truffle/Instrumentation: a new flavor of Instrument that lazily provides an AST fragment to be attached/adopted directly into a running AST, and to which execution event notifications will be routed. Important use cases so far include conditional breakpoints (with optimizeable conditions) and Ruby set_trace_func.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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236 static class TestAddNode extends TestLanguageNode {
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237 @Child private TestLanguageNode leftChild;
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238 @Child private TestLanguageNode rightChild;
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239
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240 public TestAddNode(TestValueNode leftChild, TestValueNode rightChild, SourceSection sourceSection) {
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241 super(sourceSection);
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242 this.leftChild = insert(leftChild);
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243 this.rightChild = insert(rightChild);
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244 }
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245
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246 @Override
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247 public Object execute(VirtualFrame frame) {
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248 return new Integer(((Integer) leftChild.execute(frame)).intValue() + ((Integer) rightChild.execute(frame)).intValue());
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249 }
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250 }
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251
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252 }