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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/Node.java @ 12495:b7c8b843dc7b

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Truffle: add sanity check.
author Andreas Woess <andreas.woess@jku.at>
date Sun, 20 Oct 2013 03:50:51 +0200
parents 57b8a41c0e18
children ffd4b6b4ae68
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.lang.annotation.*;
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28 import java.util.*;
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29
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30 import com.oracle.truffle.api.*;
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31 import com.oracle.truffle.api.nodes.NodeInfo.Kind;
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32
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33 /**
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34 * Abstract base class for all Truffle nodes.
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35 */
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36 public abstract class Node implements Cloneable {
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37
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38 private Node parent;
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39
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40 private SourceSection sourceSection;
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41
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42 /**
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43 * Marks array fields that are children of this node.
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44 */
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45 @Retention(RetentionPolicy.RUNTIME)
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46 @Target({ElementType.FIELD})
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47 public @interface Children {
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48 }
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49
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50 /**
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51 * Marks fields that represent child nodes of this node.
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52 */
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53 @Retention(RetentionPolicy.RUNTIME)
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54 @Target({ElementType.FIELD})
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55 public @interface Child {
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56 }
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57
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58 protected Node() {
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59 CompilerAsserts.neverPartOfCompilation();
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60 }
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61
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62 protected Node(SourceSection sourceSection) {
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63 CompilerAsserts.neverPartOfCompilation();
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64 this.sourceSection = sourceSection;
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65 }
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66
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67 /**
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68 * Assigns a link to a guest language source section to this node.
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69 *
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70 * @param section the object representing a section in guest language source code
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71 */
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72 public final void assignSourceSection(SourceSection section) {
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73 if (sourceSection != null) {
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74 // Patch this test during the transition to constructor-based
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75 // source attribution, which would otherwise trigger this
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76 // exception. This method will eventually be deprecated.
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77 if (getSourceSection() != section) {
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78 throw new IllegalStateException("Source section is already assigned. Old: " + getSourceSection() + ", new: " + section);
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79 }
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80 }
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81 this.sourceSection = section;
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82 }
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84 /**
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85 * Clears any previously assigned guest language source code from this node.
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86 */
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87 public final void clearSourceSection() {
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88 this.sourceSection = null;
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89 }
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90
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91 /**
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92 * Retrieves the guest language source code section that is currently assigned to this node.
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93 *
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94 * @return the assigned source code section
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95 */
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96 public final SourceSection getSourceSection() {
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97 return sourceSection;
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98 }
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99
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100 /**
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101 * Retrieves the guest language source code section that is currently assigned to this node.
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102 *
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103 * @return the assigned source code section
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104 */
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105 @CompilerDirectives.SlowPath
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106 public final SourceSection getEncapsulatingSourceSection() {
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107 if (sourceSection == null && getParent() != null) {
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108 return getParent().getEncapsulatingSourceSection();
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109 }
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110 return sourceSection;
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111 }
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112
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113 /**
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114 * Method that updates the link to the parent in the array of specified new child nodes to this
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115 * node.
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116 *
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117 * @param newChildren the array of new children whose parent should be updated
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118 * @return the array of new children
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119 */
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120 protected final <T extends Node> T[] adoptChildren(T[] newChildren) {
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121 if (newChildren != null) {
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122 for (T n : newChildren) {
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123 adoptChild(n);
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124 }
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125 }
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126 return newChildren;
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127 }
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128
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129 /**
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130 * Method that updates the link to the parent in the specified new child node to this node.
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131 *
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132 * @param newChild the new child whose parent should be updated
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133 * @return the new child
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134 */
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135 protected final <T extends Node> T adoptChild(T newChild) {
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136 if (newChild != null) {
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137 if (newChild == this) {
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138 throw new IllegalStateException("The parent of a node can never be the node itself.");
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139 }
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140 ((Node) newChild).parent = this;
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141 }
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142 return newChild;
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143 }
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144
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145 /**
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146 * Returns properties of this node interesting for debugging and can be overwritten by
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147 * subclasses to add their own custom properties.
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148 *
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149 * @return the properties as a key/value hash map
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150 */
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151 public Map<String, Object> getDebugProperties() {
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152 Map<String, Object> properties = new HashMap<>();
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153 return properties;
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154 }
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155
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156 /**
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157 * The current parent node of this node.
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158 *
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159 * @return the parent node
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160 */
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161 public final Node getParent() {
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162 return parent;
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163 }
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164
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165 /**
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166 * Replaces this node with another node. If there is a source section (see
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167 * {@link #getSourceSection()}) associated with this node, it is transferred to the new node.
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168 *
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169 * @param newNode the new node that is the replacement
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170 * @param reason a description of the reason for the replacement
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171 * @return the new node
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172 */
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173 public final <T extends Node> T replace(T newNode, String reason) {
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174 CompilerDirectives.transferToInterpreter();
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175 if (this.getParent() == null) {
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176 throw new IllegalStateException("This node cannot be replaced, because it does not yet have a parent.");
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177 }
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178 if (sourceSection != null && newNode.getSourceSection() == null) {
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179 // Pass on the source section to the new node.
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180 newNode.assignSourceSection(sourceSection);
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181 }
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182 onReplace(newNode, reason);
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183 ((Node) newNode).parent = this.parent;
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184 if (!NodeUtil.replaceChild(this.parent, this, newNode)) {
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185 fixupTree();
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186 }
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187 return newNode;
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188 }
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189
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diff changeset
190 /**
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
191 * Rewrite has failed; the tree is likely inconsistent, so fix any stale parent references.
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
192 *
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
193 * This is a rather expensive operation but rare to occur.
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
194 */
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
195 private void fixupTree() {
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
196 Node rootNode = NodeUtil.findParent(this, RootNode.class);
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
197 if (rootNode == null) {
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
198 throw new UnsupportedOperationException("Tree does not have a root node.");
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
199 }
12495
b7c8b843dc7b Truffle: add sanity check.
Andreas Woess <andreas.woess@jku.at>
parents: 12494
diff changeset
200 int fixCount = rootNode.fixupChildren();
b7c8b843dc7b Truffle: add sanity check.
Andreas Woess <andreas.woess@jku.at>
parents: 12494
diff changeset
201 assert fixCount != 0 : "sanity check failed: missing @Child[ren] or adoptChild?";
b7c8b843dc7b Truffle: add sanity check.
Andreas Woess <andreas.woess@jku.at>
parents: 12494
diff changeset
202 // if nothing had to be fixed, rewrite failed due to node not being a proper child.
12494
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
203 }
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
204
12495
b7c8b843dc7b Truffle: add sanity check.
Andreas Woess <andreas.woess@jku.at>
parents: 12494
diff changeset
205 private int fixupChildren() {
b7c8b843dc7b Truffle: add sanity check.
Andreas Woess <andreas.woess@jku.at>
parents: 12494
diff changeset
206 int fixCount = 0;
12494
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
207 for (Node child : getChildren()) {
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
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parents: 11951
diff changeset
208 if (child != null) {
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
209 if (child.parent != this) {
57b8a41c0e18 Truffle: fix possible node rewrite failures after recursive calls.
Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
210 child.parent = this;
12495
b7c8b843dc7b Truffle: add sanity check.
Andreas Woess <andreas.woess@jku.at>
parents: 12494
diff changeset
211 fixCount++;
12494
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Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
212 }
12495
b7c8b843dc7b Truffle: add sanity check.
Andreas Woess <andreas.woess@jku.at>
parents: 12494
diff changeset
213 fixCount += child.fixupChildren();
12494
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parents: 11951
diff changeset
214 }
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Andreas Woess <andreas.woess@jku.at>
parents: 11951
diff changeset
215 }
12495
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Andreas Woess <andreas.woess@jku.at>
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diff changeset
216 return fixCount;
9255
cdf10fb20022 Remove Node.replaceChild method from the public API. Node.replace remains as the only method in the API to modify the AST.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 9254
diff changeset
217 }
cdf10fb20022 Remove Node.replaceChild method from the public API. Node.replace remains as the only method in the API to modify the AST.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 9254
diff changeset
218
7267
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
219 /**
9256
9640bb930327 Preserve the source section during node rewrites.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 9255
diff changeset
220 * Replaces this node with another node. If there is a source section (see
9640bb930327 Preserve the source section during node rewrites.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 9255
diff changeset
221 * {@link #getSourceSection()}) associated with this node, it is transferred to the new node.
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7267
diff changeset
222 *
7267
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
223 * @param newNode the new node that is the replacement
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
224 * @return the new 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
225 */
9254
4497235516df New API for representing Source objects and SourceSection objects. SourceSection objects can be associated with Truffle interpreter nodes.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 7530
diff changeset
226 public final <T extends Node> T replace(T newNode) {
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
227 return replace(newNode, "");
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
228 }
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
229
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
230 /**
10846
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
231 * Checks if this node is properly adopted by a parent and can be replaced.
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
232 *
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
233 * @return {@code true} if it is safe to replace this node.
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
234 */
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
235 public final boolean isReplaceable() {
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
236 if (getParent() != null) {
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
237 for (Node sibling : getParent().getChildren()) {
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
238 if (sibling == this) {
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
239 return true;
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
240 }
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
241 }
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
242 }
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
243 return false;
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
244 }
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
245
e87d56a51047 Truffle: add Node.isReplaceable()
Andreas Woess <andreas.woess@jku.at>
parents: 10843
diff changeset
246 /**
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
247 * 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
248 * node is rewritten. This method is invoked before the actual replace has happened.
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
249 *
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
250 * @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
251 * @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
252 */
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
253 protected void onReplace(Node newNode, String reason) {
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
254 RootNode rootNode = NodeUtil.findParent(this, RootNode.class);
8c570011b86f Truffle: when a node is replaced, notify optimized call target and delay compilation.
Andreas Woess <andreas.woess@jku.at>
parents: 10846
diff changeset
255 if (rootNode != null) {
8c570011b86f Truffle: when a node is replaced, notify optimized call target and delay compilation.
Andreas Woess <andreas.woess@jku.at>
parents: 10846
diff changeset
256 if (rootNode.getCallTarget() instanceof ReplaceObserver) {
8c570011b86f Truffle: when a node is replaced, notify optimized call target and delay compilation.
Andreas Woess <andreas.woess@jku.at>
parents: 10846
diff changeset
257 ((ReplaceObserver) rootNode.getCallTarget()).nodeReplaced();
8c570011b86f Truffle: when a node is replaced, notify optimized call target and delay compilation.
Andreas Woess <andreas.woess@jku.at>
parents: 10846
diff changeset
258 }
8c570011b86f Truffle: when a node is replaced, notify optimized call target and delay compilation.
Andreas Woess <andreas.woess@jku.at>
parents: 10846
diff changeset
259 }
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
260 if (TruffleOptions.TraceRewrites) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
261 Class<? extends Node> from = getClass();
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
262 Class<? extends Node> to = newNode.getClass();
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
263
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
264 if (TruffleOptions.TraceRewritesFilterFromKind != null) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
265 if (filterByKind(from, TruffleOptions.TraceRewritesFilterFromKind)) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
266 return;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
267 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
268 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
269
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
270 if (TruffleOptions.TraceRewritesFilterToKind != null) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
271 if (filterByKind(to, TruffleOptions.TraceRewritesFilterToKind)) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
272 return;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
273 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
274 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
275
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
276 String filter = TruffleOptions.TraceRewritesFilterClass;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
277 if (filter != null && (filterByContainsClassName(from, filter) || filterByContainsClassName(to, filter))) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
278 return;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
279 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
280
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
281 // CheckStyle: stop system..print check
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
282 System.out.printf("[truffle] rewrite %-50s |From %-40s |To %-40s |Reason %s.%n", this.toString(), formatNodeInfo(from), formatNodeInfo(to), reason);
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
283 // CheckStyle: resume system..print check
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
284 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
285 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
286
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
287 private static String formatNodeInfo(Class<? extends Node> clazz) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
288 NodeInfo nodeInfo = clazz.getAnnotation(NodeInfo.class);
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
289 String kind = "?";
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
290 if (nodeInfo != null) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
291 switch (nodeInfo.kind()) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
292 case GENERIC:
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
293 kind = "G";
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
294 break;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
295 case SPECIALIZED:
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
296 kind = "S";
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
297 break;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
298 case UNINITIALIZED:
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
299 kind = "U";
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
300 break;
10592
99b58803d6d9 Truffle-DSL: API changes for new polymorphic caching feature.
Christian Humer <christian.humer@gmail.com>
parents: 10590
diff changeset
301 case POLYMORPHIC:
99b58803d6d9 Truffle-DSL: API changes for new polymorphic caching feature.
Christian Humer <christian.humer@gmail.com>
parents: 10590
diff changeset
302 kind = "P";
99b58803d6d9 Truffle-DSL: API changes for new polymorphic caching feature.
Christian Humer <christian.humer@gmail.com>
parents: 10590
diff changeset
303 break;
10590
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
304 default:
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
305 kind = "?";
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
306 break;
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
307 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
308 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
309 return kind + " " + clazz.getSimpleName();
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
310 }
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
311
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
312 private static boolean filterByKind(Class<?> clazz, Kind kind) {
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
parents: 10481
diff changeset
313 NodeInfo info = clazz.getAnnotation(NodeInfo.class);
6eb8d63cea34 Added a feature to trace rewrites of truffle nodes.
Christian Humer <christian.humer@gmail.com>
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314 if (info != null) {
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315 return info.kind() != kind;
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316 }
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317 return true;
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318 }
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319
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320 private static boolean filterByContainsClassName(Class<? extends Node> from, String filter) {
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321 Class<?> currentFrom = from;
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322 while (currentFrom != null) {
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323 if (currentFrom.getName().contains(filter)) {
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324 return false;
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325 }
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326 currentFrom = currentFrom.getSuperclass();
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327 }
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328 return true;
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329 }
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330
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331 /**
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332 * Invokes the {@link NodeVisitor#visit(Node)} method for this node and recursively also for all
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333 * child nodes.
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334 *
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335 * @param nodeVisitor the visitor
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336 */
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337 public final void accept(NodeVisitor nodeVisitor) {
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338 if (nodeVisitor.visit(this)) {
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339 for (Node child : this.getChildren()) {
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340 if (child != null) {
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341 child.accept(nodeVisitor);
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342 }
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343 }
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344 }
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345 }
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346
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347 /**
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348 * Iterator over the children of this node.
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349 *
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350 * @return the iterator
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351 */
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352 public final Iterable<Node> getChildren() {
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353 final Node node = this;
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354 return new Iterable<Node>() {
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355
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356 public Iterator<Node> iterator() {
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357 return new NodeUtil.NodeIterator(node);
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358 }
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359 };
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360 }
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361
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362 /**
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363 * Creates a shallow copy of this node.
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364 *
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365 * @return the new copy
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366 */
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367 public Node copy() {
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368 try {
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369 return (Node) super.clone();
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370 } catch (CloneNotSupportedException e) {
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371 return null;
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372 }
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373 }
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374
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375 /**
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376 * This method must never be called. It enforces that {@link Object#clone} is not directly
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377 * called by subclasses. Use the {@link #copy()} method instead.
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378 */
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379 @Override
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380 @Deprecated
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381 protected final Object clone() throws CloneNotSupportedException {
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382 throw new IllegalStateException("This method should never be called, use the copy method instead!");
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383 }
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384
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385 /**
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386 * Converts this node to a textual representation useful for debugging.
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387 */
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388 @Override
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389 public String toString() {
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390 StringBuilder sb = new StringBuilder(getClass().getSimpleName());
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391 Map<String, Object> properties = getDebugProperties();
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392 boolean hasProperties = false;
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393 for (Map.Entry<String, Object> entry : properties.entrySet()) {
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394 sb.append(hasProperties ? "," : "<");
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395 hasProperties = true;
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396 sb.append(entry.getKey()).append("=").append(entry.getValue());
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397 }
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398 if (hasProperties) {
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399 sb.append(">");
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400 }
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401 sb.append("@").append(Integer.toHexString(hashCode()));
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402 return sb.toString();
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403 }
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:
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