Mercurial > hg > truffle
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/NodeUtil.java @ 11809:c7769440afd8
improve NodeUtil.cloneNode.
author | Andreas Woess <andreas.woess@jku.at> |
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date | Wed, 25 Sep 2013 17:34:01 +0200 |
parents | e8dfad9a424f |
children | 099af41815ea |
rev | line source |
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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.
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1 /* |
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2 * Copyright (c) 2012, 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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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.
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4 * |
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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.
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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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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.
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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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.
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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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.
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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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.
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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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.
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15 * accompanied this code). |
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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.
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16 * |
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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.
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17 * You should have received a copy of the GNU General Public License version |
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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.
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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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.
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 package com.oracle.truffle.api.nodes; |
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26 |
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27 import java.io.*; |
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28 import java.lang.annotation.*; |
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29 import java.lang.reflect.*; |
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30 import java.util.*; |
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31 |
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32 import sun.misc.*; |
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33 |
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34 import com.oracle.truffle.api.nodes.Node.Child; |
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35 import com.oracle.truffle.api.nodes.Node.Children; |
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36 |
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37 /** |
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38 * Utility class that manages the special access methods for node instances. |
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39 */ |
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40 public final class NodeUtil { |
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41 |
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42 /** |
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43 * Interface that allows the customization of field offsets used for {@link Unsafe} field |
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44 * accesses. |
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45 */ |
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46 public interface FieldOffsetProvider { |
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47 |
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48 long objectFieldOffset(Field field); |
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49 } |
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50 |
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51 private static final FieldOffsetProvider unsafeFieldOffsetProvider = new FieldOffsetProvider() { |
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52 |
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53 @Override |
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54 public long objectFieldOffset(Field field) { |
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55 return unsafe.objectFieldOffset(field); |
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56 } |
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57 }; |
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58 |
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59 public static enum NodeFieldKind { |
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60 /** The single {@link Node#getParent() parent} field. */ |
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61 PARENT, |
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62 /** A field annotated with {@link Child}. */ |
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63 CHILD, |
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64 /** A field annotated with {@link Children}. */ |
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65 CHILDREN, |
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66 /** A normal non-child data field of the node. */ |
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67 DATA |
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68 } |
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69 |
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70 /** |
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71 * Information about a field in a {@link Node} class. |
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72 */ |
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73 public static final class NodeField { |
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74 |
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75 private final NodeFieldKind kind; |
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76 private final Class<?> type; |
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77 private final String name; |
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78 private long offset; |
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79 |
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80 protected NodeField(NodeFieldKind kind, Class<?> type, String name, long offset) { |
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81 this.kind = kind; |
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82 this.type = type; |
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83 this.name = name; |
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84 this.offset = offset; |
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85 } |
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86 |
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87 public NodeFieldKind getKind() { |
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88 return kind; |
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89 } |
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90 |
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91 public Class<?> getType() { |
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92 return type; |
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93 } |
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94 |
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95 public String getName() { |
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96 return name; |
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97 } |
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98 |
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99 public long getOffset() { |
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100 return offset; |
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101 } |
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102 |
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103 public Object loadValue(Node node) { |
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104 if (type == boolean.class) { |
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105 return unsafe.getBoolean(node, offset); |
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106 } else if (type == byte.class) { |
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107 return unsafe.getByte(node, offset); |
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108 } else if (type == short.class) { |
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109 return unsafe.getShort(node, offset); |
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110 } else if (type == char.class) { |
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111 return unsafe.getChar(node, offset); |
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112 } else if (type == int.class) { |
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113 return unsafe.getInt(node, offset); |
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114 } else if (type == long.class) { |
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115 return unsafe.getLong(node, offset); |
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116 } else if (type == float.class) { |
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117 return unsafe.getFloat(node, offset); |
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118 } else if (type == double.class) { |
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119 return unsafe.getDouble(node, offset); |
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120 } else { |
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121 return unsafe.getObject(node, offset); |
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122 } |
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123 } |
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124 } |
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125 |
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126 /** |
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127 * Information about a {@link Node} class. A single instance of this class is allocated for |
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128 * every subclass of {@link Node} that is used. |
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129 */ |
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130 public static final class NodeClass { |
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131 |
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132 private static final Map<Class<?>, NodeClass> nodeClasses = new IdentityHashMap<>(); |
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133 |
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134 // The comprehensive list of all fields. |
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135 private final NodeField[] fields; |
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136 // Separate arrays for the frequently accessed field offsets. |
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137 private final long parentOffset; |
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138 private final long[] childOffsets; |
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139 private final long[] childrenOffsets; |
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140 |
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141 public static NodeClass get(Class<? extends Node> clazz) { |
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142 NodeClass nodeClass = nodeClasses.get(clazz); |
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143 if (nodeClass == null) { |
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144 nodeClass = new NodeClass(clazz, unsafeFieldOffsetProvider); |
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145 nodeClasses.put(clazz, nodeClass); |
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146 } |
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147 return nodeClass; |
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148 } |
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149 |
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150 public NodeClass(Class<? extends Node> clazz, FieldOffsetProvider fieldOffsetProvider) { |
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151 List<NodeField> fieldsList = new ArrayList<>(); |
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152 List<Long> parentOffsetsList = new ArrayList<>(); |
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153 List<Long> childOffsetsList = new ArrayList<>(); |
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154 List<Long> childrenOffsetsList = new ArrayList<>(); |
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155 |
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156 for (Field field : getAllFields(clazz)) { |
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157 if (Modifier.isStatic(field.getModifiers()) || field.isSynthetic()) { |
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158 continue; |
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159 } |
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160 |
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161 NodeFieldKind kind; |
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162 if (Node.class.isAssignableFrom(field.getType()) && field.getName().equals("parent") && field.getDeclaringClass() == Node.class) { |
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163 kind = NodeFieldKind.PARENT; |
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164 parentOffsetsList.add(fieldOffsetProvider.objectFieldOffset(field)); |
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165 } else if (Node.class.isAssignableFrom(field.getType()) && field.getAnnotation(Child.class) != null) { |
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166 kind = NodeFieldKind.CHILD; |
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167 childOffsetsList.add(fieldOffsetProvider.objectFieldOffset(field)); |
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168 assert !Modifier.isFinal(field.getModifiers()) : "child field must not be final (\"" + field.getName() + "\", " + clazz + ")"; |
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169 } else if (field.getType().isArray() && Node.class.isAssignableFrom(field.getType().getComponentType()) && field.getAnnotation(Children.class) != null) { |
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170 kind = NodeFieldKind.CHILDREN; |
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171 childrenOffsetsList.add(fieldOffsetProvider.objectFieldOffset(field)); |
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172 assert Modifier.isFinal(field.getModifiers()) : "children array field must be final (\"" + field.getName() + "\", " + clazz + ")"; |
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173 } else { |
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174 kind = NodeFieldKind.DATA; |
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175 } |
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176 fieldsList.add(new NodeField(kind, field.getType(), field.getName(), fieldOffsetProvider.objectFieldOffset(field))); |
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177 } |
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178 this.fields = fieldsList.toArray(new NodeField[fieldsList.size()]); |
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179 assert parentOffsetsList.size() == 1 : "must have exactly one parent field"; |
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180 this.parentOffset = parentOffsetsList.get(0); |
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181 this.childOffsets = toLongArray(childOffsetsList); |
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182 this.childrenOffsets = toLongArray(childrenOffsetsList); |
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183 } |
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184 |
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185 public NodeField[] getFields() { |
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186 return fields; |
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187 } |
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188 |
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189 public long getParentOffset() { |
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190 return parentOffset; |
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191 } |
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192 |
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193 public long[] getChildOffsets() { |
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194 return childOffsets; |
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195 } |
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196 |
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197 public long[] getChildrenOffsets() { |
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198 return childrenOffsets; |
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199 } |
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200 } |
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201 |
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202 static class NodeIterator implements Iterator<Node> { |
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203 |
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204 private final Node node; |
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205 private final NodeClass nodeClass; |
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206 private final int childrenCount; |
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207 private int index; |
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208 |
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209 protected NodeIterator(Node node) { |
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210 this.node = node; |
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211 this.index = 0; |
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212 this.nodeClass = NodeClass.get(node.getClass()); |
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213 this.childrenCount = childrenCount(); |
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214 } |
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215 |
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216 private int childrenCount() { |
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217 int nodeCount = nodeClass.childOffsets.length; |
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218 for (long fieldOffset : nodeClass.childrenOffsets) { |
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219 Node[] children = ((Node[]) unsafe.getObject(node, fieldOffset)); |
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220 if (children != null) { |
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221 nodeCount += children.length; |
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222 } |
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223 } |
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224 return nodeCount; |
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225 } |
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226 |
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227 private Node nodeAt(int idx) { |
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228 int nodeCount = nodeClass.childOffsets.length; |
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229 if (idx < nodeCount) { |
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230 return (Node) unsafe.getObject(node, nodeClass.childOffsets[idx]); |
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231 } else { |
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232 for (long fieldOffset : nodeClass.childrenOffsets) { |
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233 Node[] nodeArray = (Node[]) unsafe.getObject(node, fieldOffset); |
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234 if (idx < nodeCount + nodeArray.length) { |
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235 return nodeArray[idx - nodeCount]; |
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236 } |
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237 nodeCount += nodeArray.length; |
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238 } |
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239 } |
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240 return null; |
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241 } |
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242 |
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243 private void forward() { |
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244 if (index < childrenCount) { |
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245 index++; |
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246 } |
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247 } |
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248 |
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249 @Override |
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250 public boolean hasNext() { |
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251 return index < childrenCount; |
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252 } |
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253 |
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254 @Override |
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255 public Node next() { |
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256 try { |
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257 return nodeAt(index); |
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258 } finally { |
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259 forward(); |
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260 } |
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261 } |
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262 |
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263 @Override |
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264 public void remove() { |
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265 throw new UnsupportedOperationException(); |
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266 } |
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267 } |
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268 |
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269 private static long[] toLongArray(List<Long> list) { |
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270 long[] array = new long[list.size()]; |
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271 for (int i = 0; i < list.size(); i++) { |
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272 array[i] = list.get(i); |
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273 } |
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274 return array; |
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275 } |
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276 |
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277 private static final Unsafe unsafe = getUnsafe(); |
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278 |
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279 private static Unsafe getUnsafe() { |
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280 try { |
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281 return Unsafe.getUnsafe(); |
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282 } catch (SecurityException e) { |
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283 } |
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284 try { |
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285 Field theUnsafeInstance = Unsafe.class.getDeclaredField("theUnsafe"); |
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286 theUnsafeInstance.setAccessible(true); |
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287 return (Unsafe) theUnsafeInstance.get(Unsafe.class); |
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288 } catch (Exception e) { |
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289 throw new RuntimeException("exception while trying to get Unsafe.theUnsafe via reflection:", e); |
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290 } |
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291 } |
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292 |
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293 @SuppressWarnings("unchecked") |
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294 public static <T extends Node> T cloneNode(T orig) { |
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295 final Node clone = orig.copy(); |
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296 NodeClass nodeClass = NodeClass.get(clone.getClass()); |
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297 |
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298 unsafe.putObject(clone, nodeClass.parentOffset, null); |
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299 |
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300 for (long fieldOffset : nodeClass.childOffsets) { |
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301 Node child = (Node) unsafe.getObject(orig, fieldOffset); |
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302 if (child != null) { |
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303 Node clonedChild = cloneNode(child); |
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304 unsafe.putObject(clonedChild, nodeClass.parentOffset, clone); |
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305 unsafe.putObject(clone, fieldOffset, clonedChild); |
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306 } |
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307 } |
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308 for (long fieldOffset : nodeClass.childrenOffsets) { |
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309 Node[] children = (Node[]) unsafe.getObject(orig, fieldOffset); |
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310 if (children != null) { |
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311 Node[] clonedChildren = (Node[]) Array.newInstance(children.getClass().getComponentType(), children.length); |
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312 for (int i = 0; i < children.length; i++) { |
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313 if (children[i] != null) { |
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314 Node clonedChild = cloneNode(children[i]); |
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315 clonedChildren[i] = clonedChild; |
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316 unsafe.putObject(clonedChild, nodeClass.parentOffset, clone); |
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317 } |
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318 } |
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319 unsafe.putObject(clone, fieldOffset, clonedChildren); |
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320 } |
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321 } |
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322 return (T) clone; |
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323 } |
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324 |
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325 public static List<Node> findNodeChildren(Node node) { |
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326 List<Node> nodes = new ArrayList<>(); |
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327 NodeClass nodeClass = NodeClass.get(node.getClass()); |
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328 |
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329 for (long fieldOffset : nodeClass.childOffsets) { |
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330 Object child = unsafe.getObject(node, fieldOffset); |
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331 if (child != null) { |
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332 nodes.add((Node) child); |
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333 } |
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334 } |
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335 for (long fieldOffset : nodeClass.childrenOffsets) { |
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336 Node[] children = (Node[]) unsafe.getObject(node, fieldOffset); |
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337 if (children != null) { |
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338 for (Node child : children) { |
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339 if (child != null) { |
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340 nodes.add(child); |
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341 } |
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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 return nodes; |
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347 } |
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348 |
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349 public static void replaceChild(Node parent, Node oldChild, Node newChild) { |
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350 NodeClass nodeClass = NodeClass.get(parent.getClass()); |
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351 |
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352 for (long fieldOffset : nodeClass.getChildOffsets()) { |
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353 if (unsafe.getObject(parent, fieldOffset) == oldChild) { |
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354 assert assertAssignable(nodeClass, fieldOffset, newChild); |
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355 unsafe.putObject(parent, fieldOffset, newChild); |
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356 return; |
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357 } |
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358 } |
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359 |
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360 for (long fieldOffset : nodeClass.getChildrenOffsets()) { |
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361 Object arrayObject = unsafe.getObject(parent, fieldOffset); |
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362 if (arrayObject != null) { |
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363 assert arrayObject instanceof Node[] : "Children array must be instanceof Node[] "; |
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364 Node[] array = (Node[]) arrayObject; |
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365 for (int i = 0; i < array.length; i++) { |
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366 if (array[i] == oldChild) { |
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367 assert assertAssignable(nodeClass, fieldOffset, newChild); |
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368 array[i] = newChild; |
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369 return; |
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370 } |
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371 } |
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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 private static boolean assertAssignable(NodeClass clazz, long fieldOffset, Object newValue) { |
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377 if (newValue == null) { |
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378 return true; |
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379 } |
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380 for (NodeField field : clazz.getFields()) { |
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381 if (field.getOffset() == fieldOffset) { |
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382 if (field.getKind() == NodeFieldKind.CHILD) { |
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383 if (field.getType().isAssignableFrom(newValue.getClass())) { |
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384 return true; |
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385 } else { |
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386 assert false : "Child class " + newValue.getClass().getName() + " is not assignable to field \"" + field.getName() + "\" of type " + field.getType().getName(); |
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387 return false; |
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388 } |
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389 } else if (field.getKind() == NodeFieldKind.CHILDREN) { |
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390 if (field.getType().getComponentType().isAssignableFrom(newValue.getClass())) { |
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391 return true; |
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392 } else { |
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393 assert false : "Child class " + newValue.getClass().getName() + " is not assignable to field \"" + field.getName() + "\" of type " + field.getType().getName(); |
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394 return false; |
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395 } |
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396 } |
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397 } |
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398 } |
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399 throw new IllegalArgumentException(); |
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400 } |
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401 |
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402 /** Returns all declared fields in the class hierarchy. */ |
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403 private static Field[] getAllFields(Class<? extends Object> clazz) { |
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404 Field[] declaredFields = clazz.getDeclaredFields(); |
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405 if (clazz.getSuperclass() != null) { |
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406 return concat(getAllFields(clazz.getSuperclass()), declaredFields); |
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407 } |
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408 return declaredFields; |
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409 } |
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410 |
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411 public static <T> T[] concat(T[] first, T[] second) { |
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412 T[] result = Arrays.copyOf(first, first.length + second.length); |
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413 System.arraycopy(second, 0, result, first.length, second.length); |
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414 return result; |
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415 } |
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416 |
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417 /** |
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418 * Get the nth parent of a node, where the 0th parent is the node itself. Returns null if there |
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419 * are less than n ancestors. |
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420 */ |
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421 public static Node getNthParent(Node node, int n) { |
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422 Node parent = node; |
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423 |
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424 for (int i = 0; i < n; i++) { |
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425 parent = parent.getParent(); |
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426 |
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427 if (parent == null) { |
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428 return null; |
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429 } |
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430 } |
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431 |
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432 return parent; |
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433 } |
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434 |
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435 /** find annotation in class/interface hierarchy. */ |
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436 public static <T extends Annotation> T findAnnotation(Class<?> clazz, Class<T> annotationClass) { |
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437 if (clazz.getAnnotation(annotationClass) != null) { |
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438 return clazz.getAnnotation(annotationClass); |
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439 } else { |
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440 for (Class<?> intf : clazz.getInterfaces()) { |
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441 if (intf.getAnnotation(annotationClass) != null) { |
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442 return intf.getAnnotation(annotationClass); |
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443 } |
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444 } |
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445 if (clazz.getSuperclass() != null) { |
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446 return findAnnotation(clazz.getSuperclass(), annotationClass); |
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447 } |
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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.
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448 } |
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449 return null; |
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450 } |
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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.
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451 |
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452 @SuppressWarnings("unchecked") |
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453 public static <T extends Node> T findParent(final Node start, final Class<T> clazz) { |
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454 assert start != null; |
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455 if (clazz.isInstance(start.getParent())) { |
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456 return (T) start.getParent(); |
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457 } else { |
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458 return start.getParent() != null ? findParent(start.getParent(), clazz) : null; |
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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.
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459 } |
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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.
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460 } |
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461 |
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462 @SuppressWarnings("unchecked") |
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463 public static <I> I findParentInterface(final Node start, final Class<I> clazz) { |
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464 assert start != null; |
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465 if (clazz.isInstance(start.getParent())) { |
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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.
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466 return (I) start.getParent(); |
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467 } else { |
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468 return (start.getParent() != null ? findParentInterface(start.getParent(), clazz) : null); |
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469 } |
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470 } |
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471 |
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472 @SuppressWarnings("unchecked") |
9537
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Fixed Truffle child iterator should only iterate children which are annotated with @Child or @Children.
Christian Humer <christian.humer@gmail.com>
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473 public static <T> T findFirstNodeInstance(Node root, Class<T> clazz) { |
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Fixed Truffle child iterator should only iterate children which are annotated with @Child or @Children.
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474 for (Node childNode : findNodeChildren(root)) { |
7267
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475 if (clazz.isInstance(childNode)) { |
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476 return (T) childNode; |
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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.
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477 } else { |
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478 T node = findFirstNodeInstance(childNode, clazz); |
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479 if (node != null) { |
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480 return node; |
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481 } |
7267
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482 } |
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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.
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483 } |
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484 return null; |
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485 } |
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486 |
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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.
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487 public static <T extends Node> List<T> findAllNodeInstances(final Node root, final Class<T> clazz) { |
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488 final List<T> nodeList = new ArrayList<>(); |
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489 root.accept(new NodeVisitor() { |
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490 |
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491 @SuppressWarnings("unchecked") |
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492 @Override |
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493 public boolean visit(Node node) { |
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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.
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494 if (clazz.isInstance(node)) { |
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495 nodeList.add((T) node); |
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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.
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496 } |
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497 return true; |
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498 } |
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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.
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499 }); |
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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.
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500 return nodeList; |
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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.
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501 } |
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502 |
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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.
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503 // Don't visit found node instances. |
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504 public static <T extends Node> List<T> findNodeInstancesShallow(final Node root, final Class<T> clazz) { |
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505 final List<T> nodeList = new ArrayList<>(); |
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506 root.accept(new NodeVisitor() { |
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507 |
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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.
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508 @SuppressWarnings("unchecked") |
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509 @Override |
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510 public boolean visit(Node node) { |
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511 if (clazz.isInstance(node)) { |
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512 nodeList.add((T) node); |
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513 return false; |
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514 } |
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515 return true; |
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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.
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516 } |
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517 }); |
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518 return nodeList; |
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519 } |
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520 |
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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.
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521 /** Find node instances within current function only (not in nested functions). */ |
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522 public static <T extends Node> List<T> findNodeInstancesInFunction(final Node root, final Class<T> clazz) { |
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523 final List<T> nodeList = new ArrayList<>(); |
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524 root.accept(new NodeVisitor() { |
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525 |
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526 @SuppressWarnings("unchecked") |
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527 @Override |
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528 public boolean visit(Node node) { |
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529 if (clazz.isInstance(node)) { |
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530 nodeList.add((T) node); |
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531 } else if (node instanceof RootNode && node != root) { |
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532 return false; |
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533 } |
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534 return true; |
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535 } |
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536 }); |
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537 return nodeList; |
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538 } |
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539 |
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540 public static <I> List<I> findNodeInstancesInFunctionInterface(final Node root, final Class<I> clazz) { |
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541 final List<I> nodeList = new ArrayList<>(); |
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542 root.accept(new NodeVisitor() { |
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543 |
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544 @SuppressWarnings("unchecked") |
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545 @Override |
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546 public boolean visit(Node node) { |
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547 if (clazz.isInstance(node)) { |
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548 nodeList.add((I) node); |
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549 } else if (node instanceof RootNode && node != root) { |
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550 return false; |
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551 } |
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552 return true; |
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553 } |
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554 }); |
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555 return nodeList; |
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556 } |
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557 |
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558 public static int countNodes(Node root) { |
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559 return countNodes(root, null); |
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560 } |
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561 |
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562 public static int countNodes(Node root, Class<?> clazz) { |
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563 NodeCountVisitor nodeCount = new NodeCountVisitor(root, clazz); |
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564 root.accept(nodeCount); |
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565 return nodeCount.nodeCount; |
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566 } |
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567 |
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568 private static final class NodeCountVisitor implements NodeVisitor { |
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569 |
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570 int nodeCount; |
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571 private final Node root; |
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572 private final Class<?> clazz; |
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573 |
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574 private NodeCountVisitor(Node root, Class<?> clazz) { |
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575 this.root = root; |
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576 this.clazz = clazz; |
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577 } |
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578 |
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579 @Override |
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580 public boolean visit(Node node) { |
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581 if (node instanceof RootNode && node != root) { |
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582 return false; |
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583 } |
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584 if (clazz == null || clazz.isInstance(node)) { |
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585 nodeCount++; |
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586 } |
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587 return true; |
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588 } |
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589 } |
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590 |
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591 public static String printCompactTreeToString(Node node) { |
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592 StringWriter out = new StringWriter(); |
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593 printCompactTree(new PrintWriter(out), null, node, 1); |
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594 return out.toString(); |
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595 } |
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596 |
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597 public static void printCompactTree(OutputStream out, Node node) { |
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598 printCompactTree(new PrintWriter(out), null, node, 1); |
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599 } |
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600 |
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601 private static void printCompactTree(PrintWriter p, Node parent, Node node, int level) { |
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602 if (node == null) { |
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603 return; |
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604 } |
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605 for (int i = 0; i < level; i++) { |
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606 p.print(" "); |
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607 } |
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608 if (parent == null) { |
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609 p.println(nodeName(node)); |
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610 } else { |
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611 String fieldName = "unknownField"; |
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612 NodeField[] fields = NodeClass.get(parent.getClass()).fields; |
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613 for (NodeField field : fields) { |
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614 Object value = field.loadValue(parent); |
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615 if (value == node) { |
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616 fieldName = field.getName(); |
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617 break; |
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618 } else if (value instanceof Node[]) { |
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619 int index = 0; |
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620 for (Node arrayNode : (Node[]) value) { |
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621 if (arrayNode == node) { |
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622 fieldName = field.getName() + "[" + index + "]"; |
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623 break; |
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624 } |
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625 index++; |
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626 } |
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627 } |
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628 } |
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629 p.print(fieldName); |
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630 p.print(" = "); |
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631 p.println(nodeName(node)); |
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632 } |
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633 |
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634 for (Node child : node.getChildren()) { |
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635 printCompactTree(p, node, child, level + 1); |
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636 } |
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637 p.flush(); |
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638 } |
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639 |
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640 /** |
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641 * Prints a human readable form of a {@link Node} AST to the given {@link PrintStream}. This |
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642 * print method does not check for cycles in the node structure. |
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643 * |
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644 * @param out the stream to print to. |
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645 * @param node the root node to write |
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646 */ |
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647 public static void printTree(OutputStream out, Node node) { |
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648 printTree(new PrintWriter(out), node); |
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649 } |
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650 |
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651 public static String printTreeToString(Node node) { |
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652 StringWriter out = new StringWriter(); |
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653 printTree(new PrintWriter(out), node); |
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654 return out.toString(); |
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655 } |
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656 |
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657 public static void printTree(PrintWriter p, Node node) { |
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658 printTree(p, node, 1); |
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659 p.println(); |
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660 p.flush(); |
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661 } |
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662 |
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663 private static void printTree(PrintWriter p, Node node, int level) { |
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664 if (node == null) { |
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665 p.print("null"); |
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666 return; |
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667 } |
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668 |
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669 p.print(nodeName(node)); |
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670 |
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671 ArrayList<NodeField> childFields = new ArrayList<>(); |
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672 String sep = ""; |
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673 p.print("("); |
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674 for (NodeField field : NodeClass.get(node.getClass()).fields) { |
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675 if (field.getKind() == NodeFieldKind.CHILD || field.getKind() == NodeFieldKind.CHILDREN) { |
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676 childFields.add(field); |
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677 } else if (field.getKind() == NodeFieldKind.DATA) { |
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678 p.print(sep); |
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679 sep = ", "; |
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680 |
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681 p.print(field.getName()); |
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682 p.print(" = "); |
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683 p.print(field.loadValue(node)); |
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684 } |
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685 } |
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686 p.print(")"); |
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687 |
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688 if (childFields.size() != 0) { |
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689 p.print(" {"); |
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690 for (NodeField field : childFields) { |
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691 printNewLine(p, level); |
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692 p.print(field.getName()); |
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693 |
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694 Object value = field.loadValue(node); |
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695 if (value == null) { |
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696 p.print(" = null "); |
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697 } else if (field.getKind() == NodeFieldKind.CHILD) { |
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698 p.print(" = "); |
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699 printTree(p, (Node) value, level + 1); |
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700 } else if (field.getKind() == NodeFieldKind.CHILDREN) { |
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701 Node[] children = (Node[]) value; |
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702 p.print(" = ["); |
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703 sep = ""; |
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704 for (Node child : children) { |
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705 p.print(sep); |
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706 sep = ", "; |
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707 printTree(p, child, level + 1); |
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708 } |
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709 p.print("]"); |
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710 } |
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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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711 } |
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
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712 printNewLine(p, level - 1); |
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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713 p.print("}"); |
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
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714 } |
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
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715 } |
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
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716 |
9754
98b004bf3985
Refactoring of NodeUtil to centralize the use of reflection
Christian Wimmer <christian.wimmer@oracle.com>
parents:
9538
diff
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717 private static void printNewLine(PrintWriter p, int level) { |
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:
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718 p.println(); |
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
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719 for (int i = 0; i < level; i++) { |
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
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720 p.print(" "); |
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
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721 } |
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
|
722 } |
10742
99789440ce28
Truffle: Added assertions to replaceChild.
Christian Humer <christian.humer@gmail.com>
parents:
10704
diff
changeset
|
723 |
10845
e9248ebb1d79
Truffle: ignore null children in NodeUtil.findNodeChildren; refactoring.
Andreas Woess <andreas.woess@jku.at>
parents:
10793
diff
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724 private static String nodeName(Node node) { |
e9248ebb1d79
Truffle: ignore null children in NodeUtil.findNodeChildren; refactoring.
Andreas Woess <andreas.woess@jku.at>
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10793
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725 return node.getClass().getSimpleName(); |
e9248ebb1d79
Truffle: ignore null children in NodeUtil.findNodeChildren; refactoring.
Andreas Woess <andreas.woess@jku.at>
parents:
10793
diff
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726 } |
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:
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727 } |