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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/Node.java @ 19758:f682b9e6ca07

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Truffle: expose non-atomic replace API to Truffle DSL to avoid multiple RootNode lookups for multiple replaces in one atomic block.
author Christian Humer <christian.humer@gmail.com>
date Tue, 10 Mar 2015 19:38:07 +0100
parents d344d76b7b6d
children e6a4ba0980dd
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1 /*
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2 * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.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 import java.util.concurrent.*;
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30
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31 import com.oracle.truffle.api.*;
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32 import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
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33 import com.oracle.truffle.api.instrument.*;
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34 import com.oracle.truffle.api.instrument.ProbeNode.WrapperNode;
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35 import com.oracle.truffle.api.source.*;
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36 import com.oracle.truffle.api.utilities.*;
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37
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38 /**
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39 * Abstract base class for all Truffle nodes.
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40 */
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41 public abstract class Node implements NodeInterface, Cloneable {
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42
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43 @CompilationFinal private Node parent;
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44 @CompilationFinal private SourceSection sourceSection;
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45
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46 /**
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47 * Marks array fields that are children of this node.
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48 */
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49 @Retention(RetentionPolicy.RUNTIME)
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50 @Target({ElementType.FIELD})
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51 public @interface Children {
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52 }
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53
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54 /**
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55 * Marks fields that represent child nodes of this node.
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56 */
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57 @Retention(RetentionPolicy.RUNTIME)
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58 @Target({ElementType.FIELD})
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59 public @interface Child {
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60 }
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61
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62 protected Node() {
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63 this(null);
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64 }
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65
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66 protected Node(SourceSection sourceSection) {
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67 CompilerAsserts.neverPartOfCompilation();
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68 this.sourceSection = sourceSection;
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69 if (TruffleOptions.TraceASTJSON) {
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70 JSONHelper.dumpNewNode(this);
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71 }
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72 }
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73
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74 /**
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75 * Assigns a link to a guest language source section to this node.
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76 *
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77 * @param section the object representing a section in guest language source code
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78 */
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79 public final void assignSourceSection(SourceSection section) {
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80 if (sourceSection != null) {
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81 // Patch this test during the transition to constructor-based
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82 // source attribution, which would otherwise trigger this
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83 // exception. This method will eventually be deprecated.
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84 if (getSourceSection() != section) {
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85 throw new IllegalStateException("Source section is already assigned. Old: " + getSourceSection() + ", new: " + section);
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86 }
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87 }
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88 this.sourceSection = section;
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89 }
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90
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91 /**
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92 * Returns a rough estimate for the cost of this {@link Node}. This estimate can be used by
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93 * runtime systems or guest languages to implement heuristics based on Truffle ASTs. This method
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94 * is intended to be overridden by subclasses. The default implementation returns the value of
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95 * {@link NodeInfo#cost()} of the {@link NodeInfo} annotation declared at the subclass. If no
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96 * {@link NodeInfo} annotation is declared the method returns {@link NodeCost#MONOMORPHIC} as a
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97 * default value.
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98 */
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99 public NodeCost getCost() {
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100 NodeInfo info = getClass().getAnnotation(NodeInfo.class);
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101 if (info != null) {
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102 return info.cost();
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103 }
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104 return NodeCost.MONOMORPHIC;
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105 }
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106
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107 /**
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108 * Clears any previously assigned guest language source code from this node.
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109 */
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110 public final void clearSourceSection() {
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111 this.sourceSection = null;
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112 }
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113
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114 /**
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115 * Retrieves the guest language source code section that is currently assigned to this node.
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116 *
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117 * @return the assigned source code section
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118 */
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119 public final SourceSection getSourceSection() {
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120 return sourceSection;
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121 }
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122
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123 /**
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124 * Retrieves the guest language source code section that is currently assigned to this node.
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125 *
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126 * @return the assigned source code section
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127 */
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128 @ExplodeLoop
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129 public final SourceSection getEncapsulatingSourceSection() {
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130 Node current = this;
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131 while (current != null) {
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132 if (current.sourceSection != null) {
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133 return current.sourceSection;
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134 }
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135 current = current.parent;
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136 }
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137 return null;
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138 }
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139
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140 /**
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141 * Method that updates the link to the parent in the array of specified new child nodes to this
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142 * node.
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143 *
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144 * @param newChildren the array of new children whose parent should be updated
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145 * @return the array of new children
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146 */
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147 protected final <T extends Node> T[] insert(final T[] newChildren) {
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148 CompilerDirectives.transferToInterpreterAndInvalidate();
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149 assert newChildren != null;
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150 for (Node newChild : newChildren) {
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151 adoptHelper(newChild);
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152 }
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153 return newChildren;
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154 }
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155
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156 /**
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157 * Method that updates the link to the parent in the specified new child node to this node.
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158 *
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159 * @param newChild the new child whose parent should be updated
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160 * @return the new child
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161 */
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162 protected final <T extends Node> T insert(final T newChild) {
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163 CompilerDirectives.transferToInterpreterAndInvalidate();
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164 assert newChild != null;
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165 adoptHelper(newChild);
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166 return newChild;
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167 }
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168
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169 public final void adoptChildren() {
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170 CompilerDirectives.transferToInterpreterAndInvalidate();
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171 adoptHelper();
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172 }
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173
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174 private void adoptHelper(final Node newChild) {
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175 assert newChild != null;
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176 if (newChild == this) {
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177 throw new IllegalStateException("The parent of a node can never be the node itself.");
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178 }
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179 boolean isInserted = newChild.parent == null;
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180 newChild.parent = this;
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181 if (TruffleOptions.TraceASTJSON) {
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182 JSONHelper.dumpNewChild(this, newChild);
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183 }
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184 newChild.adoptHelper();
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185 if (isInserted) {
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186 newChild.onAdopt();
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187 }
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188 }
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189
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190 private void adoptHelper() {
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191 Iterable<Node> children = this.getChildren();
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192 for (Node child : children) {
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193 if (child != null && child.getParent() != this) {
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194 this.adoptHelper(child);
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195 }
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196 }
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197 }
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198
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199 private void adoptUnadoptedHelper(final Node newChild) {
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200 assert newChild != null;
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201 if (newChild == this) {
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202 throw new IllegalStateException("The parent of a node can never be the node itself.");
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203 }
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204 boolean isInserted = newChild.parent == null;
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205 newChild.parent = this;
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206 newChild.adoptUnadoptedHelper();
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207 if (isInserted) {
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208 newChild.onAdopt();
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209 }
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210 }
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211
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212 private void adoptUnadoptedHelper() {
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213 Iterable<Node> children = this.getChildren();
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214 for (Node child : children) {
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215 if (child != null && child.getParent() == null) {
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216 this.adoptUnadoptedHelper(child);
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217 }
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218 }
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219 }
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220
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221 /**
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222 * Returns properties of this node interesting for debugging and can be overwritten by
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223 * subclasses to add their own custom properties.
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224 *
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225 * @return the properties as a key/value hash map
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226 */
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227 public Map<String, Object> getDebugProperties() {
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228 Map<String, Object> properties = new HashMap<>();
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229 return properties;
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230 }
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231
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232 /**
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233 * The current parent node of this node.
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234 *
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235 * @return the parent node
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236 */
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237 public final Node getParent() {
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238 return parent;
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239 }
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240
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241 /**
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242 * Replaces this node with another node. If there is a source section (see
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243 * {@link #getSourceSection()}) associated with this node, it is transferred to the new node.
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244 *
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245 * @param newNode the new node that is the replacement
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246 * @param reason a description of the reason for the replacement
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247 * @return the new node
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248 */
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249 public final <T extends Node> T replace(final T newNode, final CharSequence reason) {
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250 CompilerDirectives.transferToInterpreterAndInvalidate();
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251 atomic(new Runnable() {
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252 public void run() {
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253 replaceHelper(newNode, reason);
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254 }
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255 });
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256 return newNode;
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257 }
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258
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259 /**
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260 * Replaces this node with another node. If there is a source section (see
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261 * {@link #getSourceSection()}) associated with this node, it is transferred to the new node.
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262 *
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263 * @param newNode the new node that is the replacement
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264 * @return the new node
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265 */
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266 public final <T extends Node> T replace(T newNode) {
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267 return replace(newNode, "");
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268 }
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269
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270 final void replaceHelper(Node newNode, CharSequence reason) {
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271 CompilerAsserts.neverPartOfCompilation();
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272 if (this.getParent() == null) {
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273 throw new IllegalStateException("This node cannot be replaced, because it does not yet have a parent.");
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274 }
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275 if (sourceSection != null && newNode.getSourceSection() == null) {
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276 // Pass on the source section to the new node.
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277 newNode.assignSourceSection(sourceSection);
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278 }
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279 // (aw) need to set parent *before* replace, so that (unsynchronized) getRootNode()
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280 // will always find the root node
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281 newNode.parent = this.parent;
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282 if (NodeUtil.replaceChild(this.parent, this, newNode)) {
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283 this.parent.adoptHelper(newNode);
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284 } else {
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285 this.parent.adoptUnadoptedHelper(newNode);
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286 }
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287 reportReplace(this, newNode, reason);
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288 onReplace(newNode, reason);
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289 }
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290
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291 /**
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292 * Checks if this node can be replaced by another node: tree structure & type.
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293 */
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294 public final boolean isSafelyReplaceableBy(Node newNode) {
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295 return NodeUtil.isReplacementSafe(getParent(), this, newNode);
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296 }
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297
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298 private void reportReplace(Node oldNode, Node newNode, CharSequence reason) {
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299 Node node = this;
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300 while (node != null) {
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301 if (node instanceof ReplaceObserver) {
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302 ((ReplaceObserver) node).nodeReplaced(oldNode, newNode, reason);
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303 } else if (node instanceof RootNode) {
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304 CallTarget target = ((RootNode) node).getCallTarget();
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305 if (target instanceof ReplaceObserver) {
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306 ((ReplaceObserver) target).nodeReplaced(oldNode, newNode, reason);
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307 }
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308 }
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309 node = node.getParent();
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310 }
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311 if (TruffleOptions.TraceRewrites) {
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312 NodeUtil.traceRewrite(this, newNode, reason);
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313 }
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314 if (TruffleOptions.TraceASTJSON) {
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315 JSONHelper.dumpReplaceChild(this, newNode, reason);
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316 }
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317 }
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318
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319 /**
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320 * Intended to be implemented by subclasses of {@link Node} to receive a notification when the
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321 * node is rewritten. This method is invoked before the actual replace has happened.
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322 *
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323 * @param newNode the replacement node
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324 * @param reason the reason the replace supplied
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325 */
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326 protected void onReplace(Node newNode, CharSequence reason) {
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327 // empty default
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328 }
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329
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330 /**
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331 * Subclasses of {@link Node} can implement this method to execute extra functionality when a
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332 * node is effectively inserted into the AST. The {@code onAdopt} callback is called after the
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333 * node has been effectively inserted, and it is guaranteed to be called only once for any given
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334 * node.
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335 */
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336 protected void onAdopt() {
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337 // empty default
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338 }
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339
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340 /**
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341 * Invokes the {@link NodeVisitor#visit(Node)} method for this node and recursively also for all
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342 * child nodes.
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343 *
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344 * @param nodeVisitor the visitor
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345 */
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346 public final void accept(NodeVisitor nodeVisitor) {
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347 if (nodeVisitor.visit(this)) {
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348 for (Node child : this.getChildren()) {
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349 if (child != null) {
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350 child.accept(nodeVisitor);
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351 }
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352 }
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353 }
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354 }
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355
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356 /**
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357 * Iterator over the children of this node.
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358 *
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359 * @return the iterator
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360 */
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361 public final Iterable<Node> getChildren() {
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362 return new Iterable<Node>() {
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363 public Iterator<Node> iterator() {
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364 return NodeUtil.makeIterator(Node.this);
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365 }
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366 };
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367 }
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368
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369 /**
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370 * Creates a shallow copy of this node.
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371 *
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372 * @return the new copy
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373 */
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374 public Node copy() {
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375 try {
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376 return (Node) super.clone();
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377 } catch (CloneNotSupportedException e) {
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378 throw new AssertionError(e);
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379 }
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380 }
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381
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382 /**
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383 * Creates a deep copy of this node.
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384 *
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385 * @return the new deep copy
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386 */
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387 public Node deepCopy() {
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388 return NodeUtil.deepCopyImpl(this);
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389 }
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390
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391 /**
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392 * This method must never be called. It enforces that {@link Object#clone} is not directly
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393 * called by subclasses. Use the {@link #copy()} method instead.
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394 */
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395 @Override
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396 @Deprecated
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397 protected final Object clone() throws CloneNotSupportedException {
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398 throw new IllegalStateException("This method should never be called, use the copy method instead!");
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399 }
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400
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401 /**
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402 * Get the root node of the tree a node belongs to.
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403 *
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404 * @return the {@link RootNode} or {@code null} if there is none.
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405 */
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406 public final RootNode getRootNode() {
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407 Node rootNode = this;
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408 while (rootNode.getParent() != null) {
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409 assert !(rootNode instanceof RootNode) : "root node must not have a parent";
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410 rootNode = rootNode.getParent();
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411 }
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412 if (rootNode instanceof RootNode) {
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413 return (RootNode) rootNode;
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414 }
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415 return null;
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416 }
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417
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418 /**
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419 * Any node for which this is {@code true} can be "instrumented" by installing a {@link Probe}
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420 * that intercepts execution events at the node and routes them to any {@link Instrument}s that
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421 * have been attached to the {@link Probe}. Only one {@link Probe} may be installed at each
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422 * node; subsequent calls return the one already installed.
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423 * <p>
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parents: 18985
diff changeset
424 * <b>Note:</b> instrumentation requires a appropriate {@link WrapperNode}, which must be
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diff changeset
425 * provided by {@link #createWrapperNode()}.
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426 *
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
427 * @see Instrument
867058575979 Truffle: Improved support for "probing" AST nodes:
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428 */
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diff changeset
429 public boolean isInstrumentable() {
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diff changeset
430 return false;
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diff changeset
431 }
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432
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
433 /**
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
434 * For any node that {@link #isInstrumentable()}, this method must return a {@link Node} that:
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parents: 18750
diff changeset
435 * <ol>
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diff changeset
436 * <li>implements {@link WrapperNode}</li>
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diff changeset
437 * <li>has {@code this} as it's child, and</li>
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diff changeset
438 * <li>whose type is safe for replacement of {@code this} in the parent.</li>
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439 * </ol>
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440 *
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441 * @return an appropriately typed {@link WrapperNode} if {@link #isInstrumentable()}.
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442 */
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diff changeset
443 public WrapperNode createWrapperNode() {
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444 return null;
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445 }
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446
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447 /**
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448 * Enables {@linkplain Instrument instrumentation} of a node, where the node is presumed to be
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449 * part of a well-formed Truffle AST that is not being executed. If this node has not already
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450 * been probed, modifies the AST by inserting a {@linkplain WrapperNode wrapper node} between
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451 * the node and its parent; the wrapper node must be provided by implementations of
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452 * {@link #createWrapperNode()}. No more than one {@link Probe} may be associated with a node,
867058575979 Truffle: Improved support for "probing" AST nodes:
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453 * so a {@linkplain WrapperNode wrapper} may not wrap another {@linkplain WrapperNode wrapper}.
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454 *
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455 * @return a (possibly newly created) {@link Probe} associated with this node.
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456 * @throws ProbeException (unchecked) when a probe cannot be created, leaving the AST unchanged
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457 */
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diff changeset
458 public final Probe probe() {
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459
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diff changeset
460 if (this instanceof WrapperNode) {
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461 throw new ProbeException(ProbeFailure.Reason.WRAPPER_NODE, null, this, null);
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462 }
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463
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464 if (parent == null) {
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465 throw new ProbeException(ProbeFailure.Reason.NO_PARENT, null, this, null);
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466 }
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467
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468 if (parent instanceof WrapperNode) {
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diff changeset
469 return ((WrapperNode) parent).getProbe();
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470 }
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471
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diff changeset
472 if (!isInstrumentable()) {
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473 throw new ProbeException(ProbeFailure.Reason.NOT_INSTRUMENTABLE, parent, this, null);
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474 }
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475
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476 // Create a new wrapper/probe with this node as its child.
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477 final WrapperNode wrapper = createWrapperNode();
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478
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diff changeset
479 if (wrapper == null || !(wrapper instanceof Node)) {
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480 throw new ProbeException(ProbeFailure.Reason.NO_WRAPPER, parent, this, wrapper);
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481 }
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482
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diff changeset
483 final Node wrapperNode = (Node) wrapper;
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484
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diff changeset
485 if (!this.isSafelyReplaceableBy(wrapperNode)) {
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486 throw new ProbeException(ProbeFailure.Reason.WRAPPER_TYPE, parent, this, wrapper);
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487 }
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488
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diff changeset
489 // Connect it to a Probe
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490 final Probe probe = ProbeNode.insertProbe(wrapper);
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491
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492 // Replace this node in the AST with the wrapper
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diff changeset
493 this.replace(wrapperNode);
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494
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495 return probe;
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496 }
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497
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498 /**
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499 * Enables "one-shot", unmodifiable {@linkplain Instrument instrumentation} of a node, where the
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500 * node is presumed to be part of a well-formed Truffle AST that is not being executed.
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501 * <p>
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diff changeset
502 * Modifies the AST by inserting a {@linkplain WrapperNode wrapper node} between the node and
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503 * its parent; the wrapper node must be provided by implementations of
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504 * {@link #createWrapperNode()}.
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diff changeset
505 * <p>
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diff changeset
506 * Unlike {@link #probe()}, once {@link #probeLite(TruffleEventListener)} is called at a node,
18985
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507 * no additional probing can be added and no additional instrumentation can be attached.
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diff changeset
508 * <p>
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
509 * This restricted form of instrumentation is intended for special cases where only one kind of
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
510 * instrumentation is desired, and for which performance is a concern
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511 *
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diff changeset
512 * @param eventListener
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513 * @throws ProbeException (unchecked) when a probe cannot be created, leaving the AST unchanged
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diff changeset
514 */
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diff changeset
515 public final void probeLite(TruffleEventListener eventListener) {
18985
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516
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diff changeset
517 if (this instanceof WrapperNode) {
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diff changeset
518 throw new ProbeException(ProbeFailure.Reason.WRAPPER_NODE, null, this, null);
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519 }
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diff changeset
520
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
521 if (parent == null) {
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diff changeset
522 throw new ProbeException(ProbeFailure.Reason.NO_PARENT, null, this, null);
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523 }
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diff changeset
524
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diff changeset
525 if (parent instanceof WrapperNode) {
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
526 throw new ProbeException(ProbeFailure.Reason.LITE_VIOLATION, null, this, null);
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diff changeset
527 }
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diff changeset
528
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diff changeset
529 if (!isInstrumentable()) {
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diff changeset
530 throw new ProbeException(ProbeFailure.Reason.NOT_INSTRUMENTABLE, parent, this, null);
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diff changeset
531 }
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diff changeset
532
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
533 // Create a new wrapper/probe with this node as its child.
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diff changeset
534 final WrapperNode wrapper = createWrapperNode();
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
535
867058575979 Truffle: Improved support for "probing" AST nodes:
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parents: 18750
diff changeset
536 if (wrapper == null || !(wrapper instanceof Node)) {
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
537 throw new ProbeException(ProbeFailure.Reason.NO_WRAPPER, parent, this, wrapper);
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
538 }
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
539
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
540 final Node wrapperNode = (Node) wrapper;
867058575979 Truffle: Improved support for "probing" AST nodes:
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diff changeset
541
867058575979 Truffle: Improved support for "probing" AST nodes:
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 18750
diff changeset
542 if (!this.isSafelyReplaceableBy(wrapperNode)) {
867058575979 Truffle: Improved support for "probing" AST nodes:
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parents: 18750
diff changeset
543 throw new ProbeException(ProbeFailure.Reason.WRAPPER_TYPE, parent, this, wrapper);
867058575979 Truffle: Improved support for "probing" AST nodes:
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parents: 18750
diff changeset
544 }
867058575979 Truffle: Improved support for "probing" AST nodes:
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 18750
diff changeset
545
867058575979 Truffle: Improved support for "probing" AST nodes:
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 18750
diff changeset
546 // Connect it to a Probe
19247
128586040207 Truffle/Instrumentation: TruffleEventReceiver renamed to TruffleEventListener
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 19141
diff changeset
547 ProbeNode.insertProbeLite(wrapper, eventListener);
18985
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 18750
diff changeset
548
867058575979 Truffle: Improved support for "probing" AST nodes:
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 18750
diff changeset
549 // Replace this node in the AST with the wrapper
867058575979 Truffle: Improved support for "probing" AST nodes:
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 18750
diff changeset
550 this.replace(wrapperNode);
867058575979 Truffle: Improved support for "probing" AST nodes:
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parents: 18750
diff changeset
551 }
867058575979 Truffle: Improved support for "probing" AST nodes:
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 18750
diff changeset
552
867058575979 Truffle: Improved support for "probing" AST nodes:
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 18750
diff changeset
553 /**
7267
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
554 * Converts this node to a textual representation useful for debugging.
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
555 */
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
556 @Override
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
557 public String toString() {
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
558 StringBuilder sb = new StringBuilder(getClass().getSimpleName());
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
559 Map<String, Object> properties = getDebugProperties();
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
560 boolean hasProperties = false;
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
561 for (Map.Entry<String, Object> entry : properties.entrySet()) {
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
562 sb.append(hasProperties ? "," : "<");
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
563 hasProperties = true;
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
564 sb.append(entry.getKey()).append("=").append(entry.getValue());
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
565 }
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
566 if (hasProperties) {
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
567 sb.append(">");
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
568 }
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
569 sb.append("@").append(Integer.toHexString(hashCode()));
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
570 return sb.toString();
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
571 }
14629
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
572
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
573 public final void atomic(Runnable closure) {
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
574 RootNode rootNode = getRootNode();
19606
d344d76b7b6d Truffle: Node cleanup
Andreas Woess <andreas.woess@oracle.com>
parents: 19247
diff changeset
575 synchronized (rootNode != null ? rootNode : GIL) {
14629
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
576 closure.run();
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
577 }
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
578 }
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
579
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
580 public final <T> T atomic(Callable<T> closure) {
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
581 try {
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
582 RootNode rootNode = getRootNode();
19606
d344d76b7b6d Truffle: Node cleanup
Andreas Woess <andreas.woess@oracle.com>
parents: 19247
diff changeset
583 synchronized (rootNode != null ? rootNode : GIL) {
14629
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
584 return closure.call();
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
585 }
19606
d344d76b7b6d Truffle: Node cleanup
Andreas Woess <andreas.woess@oracle.com>
parents: 19247
diff changeset
586 } catch (RuntimeException | Error e) {
14629
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Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
587 throw e;
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
588 } catch (Exception e) {
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
589 throw new RuntimeException(e);
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
590 }
ba52fbec5b6c Truffle: atomic node rewriting
Andreas Woess <andreas.woess@jku.at>
parents: 14628
diff changeset
591 }
15775
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
592
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
593 /**
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
594 * Returns a user-readable description of the purpose of the Node, or "" if no description is
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
595 * available.
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
596 */
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
597 public String getDescription() {
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
598 NodeInfo info = getClass().getAnnotation(NodeInfo.class);
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
599 if (info != null) {
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
600 return info.description();
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
601 }
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
602 return "";
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
603 }
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
604
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
605 /**
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
606 * Returns a string representing the language this node has been implemented for. If the
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
607 * language is unknown, returns "".
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
608 */
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
609 public String getLanguage() {
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
610 NodeInfo info = getClass().getAnnotation(NodeInfo.class);
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
611 if (info != null && info.language() != null && info.language().length() > 0) {
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
612 return info.language();
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
613 }
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
614 if (parent != null) {
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
615 return parent.getLanguage();
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
616 }
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
617 return "";
4293efaaab76 Add description and language to the NodeInfo annotation
Christian Wirth <christian.wirth@oracle.com>
parents: 15474
diff changeset
618 }
19606
d344d76b7b6d Truffle: Node cleanup
Andreas Woess <andreas.woess@oracle.com>
parents: 19247
diff changeset
619
d344d76b7b6d Truffle: Node cleanup
Andreas Woess <andreas.woess@oracle.com>
parents: 19247
diff changeset
620 private static final Object GIL = new Object();
7267
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
621 }