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annotate truffle/com.oracle.truffle.tools.test/src/com/oracle/truffle/tools/test/TestNodes.java @ 22157:dc83cc1f94f2

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Using fully qualified imports
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Sep 2015 11:33:22 +0200
parents 5bc7f7b867ab
children 1c0f490984d5
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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
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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 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.TruffleLanguage;
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30 import com.oracle.truffle.api.frame.VirtualFrame;
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31 import com.oracle.truffle.api.instrument.KillException;
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32 import com.oracle.truffle.api.instrument.Probe;
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33 import com.oracle.truffle.api.instrument.ProbeNode;
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34 import com.oracle.truffle.api.instrument.ProbeNode.WrapperNode;
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35 import com.oracle.truffle.api.nodes.Node;
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36 import com.oracle.truffle.api.nodes.NodeCost;
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37 import com.oracle.truffle.api.nodes.NodeInfo;
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38 import com.oracle.truffle.api.nodes.RootNode;
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39 import com.oracle.truffle.api.source.LineLocation;
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40 import com.oracle.truffle.api.source.Source;
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41 import com.oracle.truffle.api.source.SourceSection;
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42
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43 /**
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44 * Nodes and an {@linkplain CallTarget executable ASTs} for testing.
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45 */
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46 class TestNodes {
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47
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48 /**
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49 * A fake source used for testing: empty line 1, expression on line 2.
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50 */
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51 public static final Source expr13Source = Source.fromText("\n6+7\n", "Test Source: expression on line 2 that evaluates to 13");
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52 public static final LineLocation expr13Line1 = expr13Source.createLineLocation(1);
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53 public static final LineLocation expr13Line2 = expr13Source.createLineLocation(2);
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54
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55 /**
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56 * An executable addition expression that evaluates to 13.
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57 */
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58 static CallTarget createExpr13TestCallTarget() {
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59 final RootNode rootNode = createExpr13TestRootNode();
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60 return Truffle.getRuntime().createCallTarget(rootNode);
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61 }
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62
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63 /**
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64 * Root holding an addition expression that evaluates to 13.
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65 */
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66 static RootNode createExpr13TestRootNode() {
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67 final TestLanguageNode ast = createExpr13AST();
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68 final TestRootNode rootNode = new TestRootNode(ast);
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69 rootNode.adoptChildren();
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70 return rootNode;
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71 }
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72
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73 /**
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74 * Addition expression that evaluates to 13, with faked source attribution.
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75 */
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76 static TestLanguageNode createExpr13AST() {
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77 final SourceSection leftSourceSection = expr13Source.createSection("left", 1, 1);
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78 final TestValueNode leftValueNode = new TestValueNode(6, leftSourceSection);
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79 final SourceSection rightSourceSection = expr13Source.createSection("right", 3, 1);
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80 final TestValueNode rightValueNode = new TestValueNode(7, rightSourceSection);
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81 final SourceSection exprSourceSection = expr13Source.createSection("expr", 1, 3);
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82 return new TestAddNode(leftValueNode, rightValueNode, exprSourceSection);
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83 }
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84
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85 abstract static class TestLanguageNode extends Node {
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86 public abstract Object execute(VirtualFrame frame);
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87
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88 public TestLanguageNode() {
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89 }
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90
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91 public TestLanguageNode(SourceSection srcSection) {
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92 super(srcSection);
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93 }
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94
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95 @Override
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96 public boolean isInstrumentable() {
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97 return true;
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98 }
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99
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100 @Override
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101 public WrapperNode createWrapperNode() {
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102 return new TestWrapperNode(this);
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103 }
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104 }
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105
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106 @NodeInfo(cost = NodeCost.NONE)
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107 static class TestWrapperNode extends TestLanguageNode implements WrapperNode {
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108 @Child private TestLanguageNode child;
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109 @Child private ProbeNode probeNode;
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110
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111 public TestWrapperNode(TestLanguageNode child) {
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112 assert !(child instanceof TestWrapperNode);
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113 this.child = child;
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114 }
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115
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116 @Override
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117 public String instrumentationInfo() {
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118 return "Wrapper node for testing";
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119 }
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120
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121 @Override
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122 public boolean isInstrumentable() {
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123 return false;
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124 }
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125
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126 @Override
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127 public void insertProbe(ProbeNode newProbeNode) {
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128 this.probeNode = newProbeNode;
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129 }
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130
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131 @Override
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132 public Probe getProbe() {
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133 return probeNode.getProbe();
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134 }
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135
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136 @Override
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137 public Node getChild() {
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138 return child;
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139 }
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140
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141 @Override
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142 public Object execute(VirtualFrame frame) {
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143 probeNode.enter(child, frame);
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144 Object result;
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145
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146 try {
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147 result = child.execute(frame);
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148 probeNode.returnValue(child, frame, result);
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149 } catch (KillException e) {
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150 throw (e);
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151 } catch (Exception e) {
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152 probeNode.returnExceptional(child, frame, e);
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153 throw (e);
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154 }
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155
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156 return result;
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157 }
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158 }
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159
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160 /**
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161 * Truffle requires that all guest languages to have a {@link RootNode} which sits atop any AST
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162 * of the guest language. This is necessary since creating a {@link CallTarget} is how Truffle
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163 * completes an AST. The root nodes serves as our entry point into a program.
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164 */
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165 static class TestRootNode extends RootNode {
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166 @Child private TestLanguageNode body;
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167
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168 /**
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169 * This constructor emulates the global machinery that applies registered probers to every
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170 * newly created AST. Global registry is not used, since that would interfere with other
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171 * tests run in the same environment.
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172 */
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173 public TestRootNode(TestLanguageNode body) {
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174 super(TruffleLanguage.class, null, null);
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175 this.body = body;
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176 }
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177
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178 @Override
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179 public Object execute(VirtualFrame frame) {
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180 return body.execute(frame);
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181 }
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182
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183 @Override
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184 public boolean isCloningAllowed() {
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185 return true;
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186 }
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187
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188 @Override
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189 public void applyInstrumentation() {
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190 Probe.applyASTProbers(body);
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191 }
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192 }
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193
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194 static class TestValueNode extends TestLanguageNode {
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195 private final int value;
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196
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197 public TestValueNode(int value) {
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198 this.value = value;
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199 }
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200
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201 public TestValueNode(int value, SourceSection srcSection) {
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202 super(srcSection);
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203 this.value = value;
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204 }
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205
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206 @Override
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207 public Object execute(VirtualFrame frame) {
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208 return new Integer(this.value);
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209 }
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210 }
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211
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212 static class TestAddNode extends TestLanguageNode {
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213 @Child private TestLanguageNode leftChild;
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214 @Child private TestLanguageNode rightChild;
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215
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216 public TestAddNode(TestValueNode leftChild, TestValueNode rightChild, SourceSection sourceSection) {
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217 super(sourceSection);
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218 this.leftChild = insert(leftChild);
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219 this.rightChild = insert(rightChild);
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220 }
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221
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222 @Override
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223 public Object execute(VirtualFrame frame) {
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224 return new Integer(((Integer) leftChild.execute(frame)).intValue() + ((Integer) rightChild.execute(frame)).intValue());
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225 }
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226 }
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227
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228 }