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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/Node.java @ 15372:2cea065e419d

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Truffle: print the source section in the rewrite trace.
author Chris Seaton <chris.seaton@oracle.com>
date Thu, 24 Apr 2014 23:29:28 +0100
parents 1cd02b4d90d1
children dd624471bd30
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2012, 2013, 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.api.nodes;
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26
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27 import java.io.*;
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28 import java.lang.annotation.*;
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29 import java.util.*;
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30 import java.util.concurrent.*;
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31
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32 import com.oracle.truffle.api.*;
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33
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34 /**
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35 * Abstract base class for all Truffle nodes.
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36 */
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37 public abstract class Node implements Cloneable {
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38
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39 private Node parent;
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40
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41 private SourceSection sourceSection;
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42
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43 /**
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44 * Marks array fields that are children of this node.
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45 */
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46 @Retention(RetentionPolicy.RUNTIME)
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47 @Target({ElementType.FIELD})
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48 public @interface Children {
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49 }
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50
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51 /**
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52 * Marks fields that represent child nodes of this node.
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53 */
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54 @Retention(RetentionPolicy.RUNTIME)
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55 @Target({ElementType.FIELD})
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56 public @interface Child {
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57 }
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58
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59 protected Node() {
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60 CompilerAsserts.neverPartOfCompilation();
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61 }
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62
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63 protected Node(SourceSection sourceSection) {
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64 CompilerAsserts.neverPartOfCompilation();
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65 this.sourceSection = sourceSection;
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66 }
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67
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68 /**
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69 * Assigns a link to a guest language source section to this node.
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70 *
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71 * @param section the object representing a section in guest language source code
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72 */
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73 public final void assignSourceSection(SourceSection section) {
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74 if (sourceSection != null) {
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75 // Patch this test during the transition to constructor-based
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76 // source attribution, which would otherwise trigger this
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77 // exception. This method will eventually be deprecated.
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78 if (getSourceSection() != section) {
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79 throw new IllegalStateException("Source section is already assigned. Old: " + getSourceSection() + ", new: " + section);
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80 }
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81 }
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82 this.sourceSection = section;
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83 }
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84
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85 /**
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86 * Returns a rough estimate for the cost of this {@link Node}. This estimate can be used by
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87 * runtime systems or guest languages to implement heuristics based on Truffle ASTs. This method
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88 * is intended to be overridden by subclasses. The default implementation returns the value of
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89 * {@link NodeInfo#cost()} of the {@link NodeInfo} annotation declared at the subclass. If no
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91 * default value.
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92 */
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93 public NodeCost getCost() {
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94 NodeInfo info = getClass().getAnnotation(NodeInfo.class);
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95 if (info != null) {
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96 return info.cost();
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97 }
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98 return NodeCost.MONOMORPHIC;
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99 }
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100
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101 /**
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102 * Clears any previously assigned guest language source code from this node.
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103 */
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104 public final void clearSourceSection() {
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105 this.sourceSection = null;
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106 }
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107
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108 /**
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109 * Retrieves the guest language source code section that is currently assigned to this node.
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110 *
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111 * @return the assigned source code section
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112 */
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113 public final SourceSection getSourceSection() {
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114 return sourceSection;
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115 }
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116
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117 /**
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118 * Retrieves the guest language source code section that is currently assigned to this node.
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119 *
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120 * @return the assigned source code section
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121 */
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122 @CompilerDirectives.SlowPath
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123 public final SourceSection getEncapsulatingSourceSection() {
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124 if (sourceSection == null && getParent() != null) {
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125 return getParent().getEncapsulatingSourceSection();
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126 }
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127 return sourceSection;
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128 }
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129
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130 /**
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131 * Method that updates the link to the parent in the array of specified new child nodes to this
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132 * node.
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133 *
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134 * @param newChildren the array of new children whose parent should be updated
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135 * @return the array of new children
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136 */
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137 @SuppressWarnings("static-method")
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138 @Deprecated
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139 protected final <T extends Node> T[] adoptChildren(final T[] newChildren) {
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140 return newChildren;
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141 }
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142
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143 /**
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144 * Method that updates the link to the parent in the specified new child node to this node.
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145 *
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146 * @param newChild the new child whose parent should be updated
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147 * @return the new child
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148 */
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149 @SuppressWarnings("static-method")
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150 @Deprecated
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151 protected final <T extends Node> T adoptChild(final T newChild) {
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152 return newChild;
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153 }
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154
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155 /**
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156 * Method that updates the link to the parent in the array of specified new child nodes to this
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157 * node.
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158 *
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159 * @param newChildren the array of new children whose parent should be updated
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160 * @return the array of new children
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161 */
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162 protected final <T extends Node> T[] insert(final T[] newChildren) {
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163 CompilerDirectives.transferToInterpreterAndInvalidate();
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164 assert newChildren != null;
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165 for (Node newChild : newChildren) {
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166 adoptHelper(newChild);
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167 }
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168 return newChildren;
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169 }
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170
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171 /**
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172 * Method that updates the link to the parent in the specified new child node to this node.
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173 *
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174 * @param newChild the new child whose parent should be updated
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175 * @return the new child
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176 */
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177 protected final <T extends Node> T insert(final T newChild) {
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178 CompilerDirectives.transferToInterpreterAndInvalidate();
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179 assert newChild != null;
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180 adoptHelper(newChild);
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181 return newChild;
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182 }
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183
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184 public final void adoptChildren() {
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185 CompilerDirectives.transferToInterpreterAndInvalidate();
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186 adoptHelper();
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187 }
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188
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189 private void adoptHelper(final Node newChild) {
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190 assert newChild != null;
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191 if (newChild == this) {
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192 throw new IllegalStateException("The parent of a node can never be the node itself.");
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193 }
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194 boolean isInserted = newChild.parent == null;
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195 newChild.parent = this;
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196 newChild.adoptHelper();
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197 if (isInserted) {
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198 newChild.onAdopt();
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199 }
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200 }
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201
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202 private void adoptHelper() {
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203 Iterable<Node> children = this.getChildren();
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204 for (Node child : children) {
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205 if (child != null && child.getParent() != this) {
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206 this.adoptHelper(child);
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207 }
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208 }
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209 }
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210
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211 private void adoptUnadoptedHelper(final Node newChild) {
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212 assert newChild != null;
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213 if (newChild == this) {
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214 throw new IllegalStateException("The parent of a node can never be the node itself.");
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215 }
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216 boolean isInserted = newChild.parent == null;
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217 newChild.parent = this;
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218 newChild.adoptUnadoptedHelper();
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219 if (isInserted) {
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220 newChild.onAdopt();
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221 }
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222 }
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223
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224 private void adoptUnadoptedHelper() {
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225 Iterable<Node> children = this.getChildren();
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226 for (Node child : children) {
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227 if (child != null && child.getParent() == null) {
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228 this.adoptUnadoptedHelper(child);
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229 }
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230 }
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231 }
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232
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233 /**
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234 * Returns properties of this node interesting for debugging and can be overwritten by
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235 * subclasses to add their own custom properties.
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236 *
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237 * @return the properties as a key/value hash map
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238 */
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239 public Map<String, Object> getDebugProperties() {
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240 Map<String, Object> properties = new HashMap<>();
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241 return properties;
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242 }
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243
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244 /**
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245 * The current parent node of this node.
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246 *
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247 * @return the parent node
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248 */
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249 public final Node getParent() {
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250 return parent;
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251 }
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252
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253 /**
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254 * Replaces this node with another node. If there is a source section (see
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255 * {@link #getSourceSection()}) associated with this node, it is transferred to the new node.
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256 *
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257 * @param newNode the new node that is the replacement
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258 * @param reason a description of the reason for the replacement
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259 * @return the new node
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260 */
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261 public final <T extends Node> T replace(final T newNode, final CharSequence reason) {
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262 CompilerDirectives.transferToInterpreterAndInvalidate();
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263 atomic(new Runnable() {
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264 public void run() {
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265 replaceHelper(newNode, reason);
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266 }
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267 });
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268 return newNode;
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269 }
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270
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271 /**
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272 * Replaces this node with another node. If there is a source section (see
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273 * {@link #getSourceSection()}) associated with this node, it is transferred to the new node.
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274 *
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275 * @param newNode the new node that is the replacement
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276 * @return the new node
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277 */
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278 public final <T extends Node> T replace(T newNode) {
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279 return replace(newNode, "");
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280 }
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281
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282 private void replaceHelper(Node newNode, CharSequence reason) {
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283 CompilerAsserts.neverPartOfCompilation();
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284 if (this.getParent() == null) {
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285 throw new IllegalStateException("This node cannot be replaced, because it does not yet have a parent.");
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286 }
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287 if (sourceSection != null && newNode.getSourceSection() == null) {
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288 // Pass on the source section to the new node.
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289 newNode.assignSourceSection(sourceSection);
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290 }
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291 // (aw) need to set parent *before* replace, so that (unsynchronized) getRootNode()
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292 // will always find the root node
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293 newNode.parent = this.parent;
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294 if (NodeUtil.replaceChild(this.parent, this, newNode)) {
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295 this.parent.adoptHelper(newNode);
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296 } else {
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297 this.parent.adoptUnadoptedHelper(newNode);
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298 }
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299 reportReplace(this, newNode, reason);
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300 onReplace(newNode, reason);
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301 }
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302
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303 /**
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304 * Checks if this node is properly adopted by a parent and can be replaced.
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305 *
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306 * @return {@code true} if it is safe to replace this node.
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307 */
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308 public final boolean isReplaceable() {
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309 if (getParent() != null) {
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310 for (Node sibling : getParent().getChildren()) {
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311 if (sibling == this) {
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312 return true;
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313 }
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314 }
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315 }
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316 return false;
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317 }
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318
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319 private void reportReplace(Node oldNode, Node newNode, CharSequence reason) {
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320 RootNode rootNode = getRootNode();
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321 if (rootNode != null) {
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322 CallTarget target = rootNode.getCallTarget();
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323 if (target instanceof ReplaceObserver) {
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324 ((ReplaceObserver) target).nodeReplaced(oldNode, newNode, reason);
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parents: 12495
diff changeset
325 }
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
326 }
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
327 }
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
328
10846
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
329 /**
9782
ba02d19dd3cc Added an onReplace method to Node to provide a way for a guest language implementation to use replace tracing.
Christian Humer <christian.humer@gmail.com>
parents: 9256
diff changeset
330 * Intended to be implemented by subclasses of {@link Node} to receive a notification when the
ba02d19dd3cc Added an onReplace method to Node to provide a way for a guest language implementation to use replace tracing.
Christian Humer <christian.humer@gmail.com>
parents: 9256
diff changeset
331 * node is rewritten. This method is invoked before the actual replace has happened.
14991
64dcb92ee75a Truffle: Change signature for Truffle calls from (PackedFrame, Arguments) to (Object[]).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 14629
diff changeset
332 *
9782
ba02d19dd3cc Added an onReplace method to Node to provide a way for a guest language implementation to use replace tracing.
Christian Humer <christian.humer@gmail.com>
parents: 9256
diff changeset
333 * @param newNode the replacement node
ba02d19dd3cc Added an onReplace method to Node to provide a way for a guest language implementation to use replace tracing.
Christian Humer <christian.humer@gmail.com>
parents: 9256
diff changeset
334 * @param reason the reason the replace supplied
ba02d19dd3cc Added an onReplace method to Node to provide a way for a guest language implementation to use replace tracing.
Christian Humer <christian.humer@gmail.com>
parents: 9256
diff changeset
335 */
14584
6189c1983cd3 Truffle: make Node#replace accept any CharSequence as reason
Andreas Woess <andreas.woess@jku.at>
parents: 14566
diff changeset
336 protected void onReplace(Node newNode, CharSequence reason) {
12692
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
337 if (TruffleOptions.TraceRewrites) {
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
338 traceRewrite(newNode, reason);
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
339 }
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
340 }
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
341
14584
6189c1983cd3 Truffle: make Node#replace accept any CharSequence as reason
Andreas Woess <andreas.woess@jku.at>
parents: 14566
diff changeset
342 private void traceRewrite(Node newNode, CharSequence reason) {
14564
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
343 if (TruffleOptions.TraceRewritesFilterFromCost != null) {
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
344 if (filterByKind(this, TruffleOptions.TraceRewritesFilterFromCost)) {
12692
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
345 return;
10862
8c570011b86f Truffle: when a node is replaced, notify optimized call target and delay compilation.
Andreas Woess <andreas.woess@jku.at>
parents: 10846
diff changeset
346 }
8c570011b86f Truffle: when a node is replaced, notify optimized call target and delay compilation.
Andreas Woess <andreas.woess@jku.at>
parents: 10846
diff changeset
347 }
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
348
14564
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
349 if (TruffleOptions.TraceRewritesFilterToCost != null) {
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
350 if (filterByKind(newNode, TruffleOptions.TraceRewritesFilterToCost)) {
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
351 return;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
352 }
12692
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
353 }
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
354
12692
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
355 String filter = TruffleOptions.TraceRewritesFilterClass;
14564
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
356 Class<? extends Node> from = getClass();
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
357 Class<? extends Node> to = newNode.getClass();
12692
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
358 if (filter != null && (filterByContainsClassName(from, filter) || filterByContainsClassName(to, filter))) {
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
359 return;
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
360 }
12692
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
361
15372
2cea065e419d Truffle: print the source section in the rewrite trace.
Chris Seaton <chris.seaton@oracle.com>
parents: 15346
diff changeset
362 final SourceSection reportedSourceSection = getEncapsulatingSourceSection();
2cea065e419d Truffle: print the source section in the rewrite trace.
Chris Seaton <chris.seaton@oracle.com>
parents: 15346
diff changeset
363
12692
ffd4b6b4ae68 Truffle Node class refactoring.
Andreas Woess <andreas.woess@jku.at>
parents: 12495
diff changeset
364 PrintStream out = System.out;
15372
2cea065e419d Truffle: print the source section in the rewrite trace.
Chris Seaton <chris.seaton@oracle.com>
parents: 15346
diff changeset
365 out.printf("[truffle] rewrite %-50s |From %-40s |To %-40s |Reason %s%s%n", this.toString(), formatNodeInfo(this), formatNodeInfo(newNode), reason != null && reason.length() > 0 ? reason
2cea065e419d Truffle: print the source section in the rewrite trace.
Chris Seaton <chris.seaton@oracle.com>
parents: 15346
diff changeset
366 : "unknown", reportedSourceSection != null ? " at " + reportedSourceSection.getShortDescription() : "");
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
367 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
368
15346
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
369 /**
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
370 * Subclasses of {@link Node} can implement this method to execute extra functionality when a
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
371 * node is effectively inserted into the AST. The {@code onAdopt} callback is called after the
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
372 * node has been effectively inserted, and it is guaranteed to be called only once for any given
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
373 * node.
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
374 */
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
375 protected void onAdopt() {
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
376 // empty default
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
377 }
1cd02b4d90d1 onAdopt callback for ASTs
Michael Haupt <michael.haupt@oracle.com>
parents: 14991
diff changeset
378
14564
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
379 private static String formatNodeInfo(Node node) {
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
380 String cost = "?";
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
381 switch (node.getCost()) {
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
382 case NONE:
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
383 cost = "G";
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
384 break;
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
385 case MONOMORPHIC:
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
386 cost = "M";
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
387 break;
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
388 case POLYMORPHIC:
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
389 cost = "P";
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
390 break;
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
391 case MEGAMORPHIC:
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
392 cost = "G";
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
393 break;
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
394 default:
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
395 cost = "?";
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
396 break;
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
397 }
14564
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
398 return cost + " " + node.getClass().getSimpleName();
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
399 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
400
14564
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
401 private static boolean filterByKind(Node node, NodeCost cost) {
5d1308c78ddc Truffle: Introduced NodeCost as a replacement for NodeInfo.Kind.
Christian Humer <christian.humer@gmail.com>
parents: 14073
diff changeset
402 return node.getCost() == cost;
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
403 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
404
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
405 private static boolean filterByContainsClassName(Class<? extends Node> from, String filter) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
406 Class<?> currentFrom = from;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
407 while (currentFrom != null) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
408 if (currentFrom.getName().contains(filter)) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
409 return false;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
410 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
411 currentFrom = currentFrom.getSuperclass();
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
412 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
413 return true;
9782
ba02d19dd3cc Added an onReplace method to Node to provide a way for a guest language implementation to use replace tracing.
Christian Humer <christian.humer@gmail.com>
parents: 9256
diff changeset
414 }
ba02d19dd3cc Added an onReplace method to Node to provide a way for a guest language implementation to use replace tracing.
Christian Humer <christian.humer@gmail.com>
parents: 9256
diff changeset
415
ba02d19dd3cc Added an onReplace method to Node to provide a way for a guest language implementation to use replace tracing.
Christian Humer <christian.humer@gmail.com>
parents: 9256
diff changeset
416 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7267
diff changeset
417 * Invokes the {@link NodeVisitor#visit(Node)} method for this node and recursively also for all
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7267
diff changeset
418 * child nodes.
14991
64dcb92ee75a Truffle: Change signature for Truffle calls from (PackedFrame, Arguments) to (Object[]).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 14629
diff changeset
419 *
7267
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
420 * @param nodeVisitor the visitor
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
421 */
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
422 public final void accept(NodeVisitor nodeVisitor) {
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
423 if (nodeVisitor.visit(this)) {
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
424 for (Node child : this.getChildren()) {
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
425 if (child != null) {
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
426 child.accept(nodeVisitor);
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
427 }
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
428 }
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
429 }
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
430 }
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
431
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
432 /**
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
433 * Iterator over the children of this node.
14991
64dcb92ee75a Truffle: Change signature for Truffle calls from (PackedFrame, Arguments) to (Object[]).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 14629
diff changeset
434 *
7267
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
435 * @return the iterator
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
436 */
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
437 public final Iterable<Node> getChildren() {
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
438 final Node node = this;
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
439 return new Iterable<Node>() {
a4b84ba6dc2e Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
440
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441 public Iterator<Node> iterator() {
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442 return new NodeUtil.NodeIterator(node);
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443 }
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444 };
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445 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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446
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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447 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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448 * Creates a shallow copy of this node.
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449 *
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450 * @return the new copy
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451 */
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452 public Node copy() {
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453 try {
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454 return (Node) super.clone();
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455 } catch (CloneNotSupportedException e) {
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456 return null;
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457 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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458 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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459
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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460 /**
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461 * This method must never be called. It enforces that {@link Object#clone} is not directly
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462 * called by subclasses. Use the {@link #copy()} method instead.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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463 */
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464 @Override
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465 @Deprecated
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466 protected final Object clone() throws CloneNotSupportedException {
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467 throw new IllegalStateException("This method should never be called, use the copy method instead!");
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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468 }
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469
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470 /**
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471 * Get the root node of the tree a node belongs to.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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472 *
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473 * @return the {@link RootNode} or {@code null} if there is none.
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474 */
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475 public final RootNode getRootNode() {
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476 Node rootNode = this;
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477 while (rootNode.getParent() != null) {
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478 assert !(rootNode instanceof RootNode) : "root node must not have a parent";
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479 rootNode = rootNode.getParent();
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480 }
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481 if (rootNode instanceof RootNode) {
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482 return (RootNode) rootNode;
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483 }
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484 return null;
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485 }
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Andreas Woess <andreas.woess@jku.at>
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486
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Andreas Woess <andreas.woess@jku.at>
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487 /**
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488 * Converts this node to a textual representation useful for debugging.
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489 */
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490 @Override
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491 public String toString() {
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492 StringBuilder sb = new StringBuilder(getClass().getSimpleName());
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493 Map<String, Object> properties = getDebugProperties();
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494 boolean hasProperties = false;
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495 for (Map.Entry<String, Object> entry : properties.entrySet()) {
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496 sb.append(hasProperties ? "," : "<");
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497 hasProperties = true;
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498 sb.append(entry.getKey()).append("=").append(entry.getValue());
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499 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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500 if (hasProperties) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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501 sb.append(">");
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502 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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503 sb.append("@").append(Integer.toHexString(hashCode()));
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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504 return sb.toString();
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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505 }
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506
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507 public final void atomic(Runnable closure) {
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508 RootNode rootNode = getRootNode();
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509 if (rootNode != null) {
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510 synchronized (rootNode) {
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511 closure.run();
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512 }
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513 } else {
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514 closure.run();
ba52fbec5b6c Truffle: atomic node rewriting
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515 }
ba52fbec5b6c Truffle: atomic node rewriting
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516 }
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Andreas Woess <andreas.woess@jku.at>
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517
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518 public final <T> T atomic(Callable<T> closure) {
ba52fbec5b6c Truffle: atomic node rewriting
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519 try {
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520 RootNode rootNode = getRootNode();
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Andreas Woess <andreas.woess@jku.at>
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521 if (rootNode != null) {
ba52fbec5b6c Truffle: atomic node rewriting
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522 synchronized (rootNode) {
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
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523 return closure.call();
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Andreas Woess <andreas.woess@jku.at>
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524 }
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525 } else {
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Andreas Woess <andreas.woess@jku.at>
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526 return closure.call();
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diff changeset
527 }
ba52fbec5b6c Truffle: atomic node rewriting
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528 } catch (RuntimeException e) {
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529 throw e;
ba52fbec5b6c Truffle: atomic node rewriting
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parents: 14628
diff changeset
530 } catch (Exception e) {
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
531 throw new RuntimeException(e);
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
532 }
ba52fbec5b6c Truffle: atomic node rewriting
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parents: 14628
diff changeset
533 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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534 }