Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/NodeUtil.java @ 11279:494b818b527c
Adding "Classpath" exception to the classes in the com.oracle.truffle.api and the com.oracle.truffle.api.dsl package.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 09 Aug 2013 11:55:20 +0200 |
parents | e9248ebb1d79 |
children | ccf047a30f18 |
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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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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6 * under the terms of the GNU General Public License version 2 only, as |
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Adding "Classpath" exception to the classes in the com.oracle.truffle.api and the com.oracle.truffle.api.dsl package.
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7 * published by the Free Software Foundation. Oracle designates this |
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Adding "Classpath" exception to the classes in the com.oracle.truffle.api and the com.oracle.truffle.api.dsl package.
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8 * particular file as subject to the "Classpath" exception as provided |
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Adding "Classpath" exception to the classes in the com.oracle.truffle.api and the com.oracle.truffle.api.dsl package.
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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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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 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 protected 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 Class<? extends Node> clazz = orig.getClass(); |
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296 NodeClass nodeClass = NodeClass.get(clazz); |
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297 Node clone = orig.copy(); |
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298 if (clone == null) { |
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299 return null; |
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300 } |
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301 |
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302 unsafe.putObject(clone, nodeClass.parentOffset, null); |
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303 |
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304 for (long fieldOffset : nodeClass.childOffsets) { |
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305 Node child = (Node) unsafe.getObject(orig, fieldOffset); |
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306 if (child != null) { |
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307 Node clonedChild = cloneNode(child); |
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308 if (clonedChild == null) { |
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309 return null; |
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310 } |
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311 |
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312 unsafe.putObject(clonedChild, nodeClass.parentOffset, clone); |
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313 unsafe.putObject(clone, fieldOffset, clonedChild); |
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314 } |
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315 } |
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316 for (long fieldOffset : nodeClass.childrenOffsets) { |
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317 Node[] children = (Node[]) unsafe.getObject(orig, fieldOffset); |
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318 if (children != null) { |
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319 Node[] clonedChildren = children.clone(); |
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320 Arrays.fill(clonedChildren, null); |
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321 for (int i = 0; i < children.length; i++) { |
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322 Node clonedChild = cloneNode(children[i]); |
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323 if (clonedChild == null) { |
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324 return null; |
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325 } |
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326 |
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327 clonedChildren[i] = clonedChild; |
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328 unsafe.putObject(clonedChild, nodeClass.parentOffset, clone); |
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329 } |
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330 unsafe.putObject(clone, fieldOffset, clonedChildren); |
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331 } |
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332 } |
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333 return (T) clone; |
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334 } |
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335 |
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336 public static List<Node> findNodeChildren(Node node) { |
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337 List<Node> nodes = new ArrayList<>(); |
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338 NodeClass nodeClass = NodeClass.get(node.getClass()); |
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339 |
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340 for (long fieldOffset : nodeClass.childOffsets) { |
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341 Object child = unsafe.getObject(node, fieldOffset); |
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342 if (child != null) { |
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343 nodes.add((Node) child); |
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344 } |
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345 } |
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346 for (long fieldOffset : nodeClass.childrenOffsets) { |
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347 Node[] children = (Node[]) unsafe.getObject(node, fieldOffset); |
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348 if (children != null) { |
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349 for (Node child : children) { |
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350 if (child != null) { |
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351 nodes.add(child); |
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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 return nodes; |
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358 } |
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359 |
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360 public static void replaceChild(Node parent, Node oldChild, Node newChild) { |
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361 NodeClass nodeClass = NodeClass.get(parent.getClass()); |
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362 |
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363 for (long fieldOffset : nodeClass.getChildOffsets()) { |
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364 if (unsafe.getObject(parent, fieldOffset) == oldChild) { |
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365 assert assertAssignable(nodeClass, fieldOffset, newChild); |
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366 unsafe.putObject(parent, fieldOffset, newChild); |
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367 } |
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368 } |
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369 |
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370 for (long fieldOffset : nodeClass.getChildrenOffsets()) { |
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371 Object arrayObject = unsafe.getObject(parent, fieldOffset); |
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372 if (arrayObject != null) { |
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373 assert arrayObject instanceof Node[] : "Children array must be instanceof Node[] "; |
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374 Node[] array = (Node[]) arrayObject; |
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375 for (int i = 0; i < array.length; i++) { |
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376 if (array[i] == oldChild) { |
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377 assert assertAssignable(nodeClass, fieldOffset, newChild); |
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378 array[i] = newChild; |
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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 } |
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384 |
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385 private static boolean assertAssignable(NodeClass clazz, long fieldOffset, Object newValue) { |
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386 if (newValue == null) { |
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387 return true; |
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388 } |
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389 for (NodeField field : clazz.getFields()) { |
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390 if (field.getOffset() == fieldOffset) { |
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391 if (field.getKind() == NodeFieldKind.CHILD) { |
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392 if (field.getType().isAssignableFrom(newValue.getClass())) { |
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393 return true; |
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394 } else { |
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395 assert false : "Child class " + newValue.getClass().getName() + " is not assignable to field \"" + field.getName() + "\" of type " + field.getType().getName(); |
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396 return false; |
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397 } |
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398 } else if (field.getKind() == NodeFieldKind.CHILDREN) { |
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399 if (field.getType().getComponentType().isAssignableFrom(newValue.getClass())) { |
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400 return true; |
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401 } else { |
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402 assert false : "Child class " + newValue.getClass().getName() + " is not assignable to field \"" + field.getName() + "\" of type " + field.getType().getName(); |
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403 return false; |
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404 } |
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405 } |
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406 } |
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407 } |
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408 throw new IllegalArgumentException(); |
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409 } |
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410 |
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411 /** Returns all declared fields in the class hierarchy. */ |
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412 private static Field[] getAllFields(Class<? extends Object> clazz) { |
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413 Field[] declaredFields = clazz.getDeclaredFields(); |
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414 if (clazz.getSuperclass() != null) { |
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415 return concat(getAllFields(clazz.getSuperclass()), declaredFields); |
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416 } |
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417 return declaredFields; |
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418 } |
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419 |
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420 public static <T> T[] concat(T[] first, T[] second) { |
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421 T[] result = Arrays.copyOf(first, first.length + second.length); |
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422 System.arraycopy(second, 0, result, first.length, second.length); |
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423 return result; |
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424 } |
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425 |
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426 /** find annotation in class/interface hierarchy. */ |
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427 public static <T extends Annotation> T findAnnotation(Class<?> clazz, Class<T> annotationClass) { |
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428 if (clazz.getAnnotation(annotationClass) != null) { |
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429 return clazz.getAnnotation(annotationClass); |
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430 } else { |
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431 for (Class<?> intf : clazz.getInterfaces()) { |
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432 if (intf.getAnnotation(annotationClass) != null) { |
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433 return intf.getAnnotation(annotationClass); |
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434 } |
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435 } |
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436 if (clazz.getSuperclass() != null) { |
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437 return findAnnotation(clazz.getSuperclass(), annotationClass); |
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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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438 } |
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439 } |
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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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440 return 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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441 } |
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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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442 |
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443 @SuppressWarnings("unchecked") |
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444 public static <T extends Node> T findParent(final Node start, final Class<T> clazz) { |
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445 assert start != 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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446 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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447 return (T) start.getParent(); |
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448 } else { |
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449 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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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 |
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453 @SuppressWarnings("unchecked") |
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454 public static <I> I findParentInterface(final Node start, final Class<I> clazz) { |
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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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455 assert start != 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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456 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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457 return (I) 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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458 } else { |
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459 return (start.getParent() != null ? findParentInterface(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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460 } |
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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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461 } |
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462 |
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463 @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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464 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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465 for (Node childNode : findNodeChildren(root)) { |
7267
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466 if (clazz.isInstance(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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467 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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468 } else { |
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469 T node = findFirstNodeInstance(childNode, clazz); |
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470 if (node != null) { |
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471 return node; |
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472 } |
7267
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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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473 } |
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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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474 } |
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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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475 return 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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476 } |
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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 |
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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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478 public static <T extends Node> List<T> findAllNodeInstances(final Node root, final Class<T> clazz) { |
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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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479 final List<T> nodeList = new ArrayList<>(); |
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480 root.accept(new NodeVisitor() { |
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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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481 |
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482 @SuppressWarnings("unchecked") |
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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 @Override |
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484 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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485 if (clazz.isInstance(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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486 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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487 } |
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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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488 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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489 } |
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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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490 }); |
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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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491 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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492 } |
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493 |
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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 // Don't visit found node instances. |
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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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495 public static <T extends Node> List<T> findNodeInstancesShallow(final Node root, final Class<T> clazz) { |
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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 final List<T> nodeList = new ArrayList<>(); |
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497 root.accept(new NodeVisitor() { |
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498 |
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499 @SuppressWarnings("unchecked") |
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500 @Override |
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501 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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502 if (clazz.isInstance(node)) { |
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503 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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504 return false; |
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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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505 } |
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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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506 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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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 }); |
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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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509 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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510 } |
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511 |
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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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512 /** Find node instances within current function only (not in nested functions). */ |
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513 public static <T extends Node> List<T> findNodeInstancesInFunction(final Node root, final Class<T> clazz) { |
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514 final List<T> nodeList = new ArrayList<>(); |
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515 root.accept(new NodeVisitor() { |
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516 |
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517 @SuppressWarnings("unchecked") |
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518 @Override |
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519 public boolean visit(Node node) { |
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520 if (clazz.isInstance(node)) { |
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521 nodeList.add((T) node); |
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522 } else if (node instanceof RootNode && node != root) { |
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523 return false; |
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524 } |
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525 return true; |
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526 } |
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527 }); |
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528 return nodeList; |
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529 } |
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530 |
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531 public static <I> List<I> findNodeInstancesInFunctionInterface(final Node root, final Class<I> clazz) { |
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532 final List<I> nodeList = new ArrayList<>(); |
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533 root.accept(new NodeVisitor() { |
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534 |
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535 @SuppressWarnings("unchecked") |
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536 @Override |
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537 public boolean visit(Node node) { |
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538 if (clazz.isInstance(node)) { |
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539 nodeList.add((I) node); |
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540 } else if (node instanceof RootNode && node != root) { |
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541 return false; |
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542 } |
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543 return true; |
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544 } |
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545 }); |
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546 return nodeList; |
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547 } |
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548 |
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549 public static int countNodes(Node root) { |
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550 return countNodes(root, null); |
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551 } |
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552 |
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553 public static int countNodes(Node root, Class<?> clazz) { |
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554 NodeCountVisitor nodeCount = new NodeCountVisitor(root, clazz); |
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555 root.accept(nodeCount); |
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556 return nodeCount.nodeCount; |
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557 } |
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558 |
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559 private static final class NodeCountVisitor implements NodeVisitor { |
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560 |
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561 int nodeCount; |
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562 private final Node root; |
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563 private final Class<?> clazz; |
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564 |
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565 private NodeCountVisitor(Node root, Class<?> clazz) { |
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566 this.root = root; |
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567 this.clazz = clazz; |
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568 } |
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569 |
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570 @Override |
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571 public boolean visit(Node node) { |
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572 if (node instanceof RootNode && node != root) { |
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573 return false; |
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574 } |
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575 if (clazz == null || clazz.isInstance(node)) { |
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576 nodeCount++; |
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577 } |
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578 return true; |
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579 } |
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580 } |
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581 |
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582 public static String printCompactTreeToString(Node node) { |
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583 StringWriter out = new StringWriter(); |
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584 printCompactTree(new PrintWriter(out), null, node, 1); |
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585 return out.toString(); |
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586 } |
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587 |
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588 public static void printCompactTree(OutputStream out, Node node) { |
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589 printCompactTree(new PrintWriter(out), null, node, 1); |
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590 } |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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591 |
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592 private static void printCompactTree(PrintWriter p, Node parent, Node node, int level) { |
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593 if (node == null) { |
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594 return; |
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595 } |
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596 for (int i = 0; i < level; i++) { |
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597 p.print(" "); |
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598 } |
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|
599 if (parent == null) { |
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600 p.println(nodeName(node)); |
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601 } else { |
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602 String fieldName = "unknownField"; |
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603 NodeField[] fields = NodeClass.get(parent.getClass()).fields; |
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604 for (NodeField field : fields) { |
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605 Object value = field.loadValue(parent); |
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606 if (value == node) { |
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607 fieldName = field.getName(); |
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608 break; |
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609 } else if (value instanceof Node[]) { |
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610 int index = 0; |
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611 for (Node arrayNode : (Node[]) value) { |
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612 if (arrayNode == node) { |
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613 fieldName = field.getName() + "[" + index + "]"; |
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614 break; |
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615 } |
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616 index++; |
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617 } |
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618 } |
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619 } |
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620 p.print(fieldName); |
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621 p.print(" = "); |
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622 p.println(nodeName(node)); |
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623 } |
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624 |
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625 for (Node child : node.getChildren()) { |
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626 printCompactTree(p, node, child, level + 1); |
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627 } |
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628 p.flush(); |
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629 } |
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630 |
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631 /** |
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632 * Prints a human readable form of a {@link Node} AST to the given {@link PrintStream}. This |
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633 * print method does not check for cycles in the node structure. |
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634 * |
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635 * @param out the stream to print to. |
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636 * @param node the root node to write |
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637 */ |
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638 public static void printTree(OutputStream out, Node node) { |
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639 printTree(new PrintWriter(out), node); |
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640 } |
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641 |
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642 public static String printTreeToString(Node node) { |
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643 StringWriter out = new StringWriter(); |
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644 printTree(new PrintWriter(out), node); |
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645 return out.toString(); |
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646 } |
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647 |
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648 public static void printTree(PrintWriter p, Node node) { |
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649 printTree(p, node, 1); |
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650 p.println(); |
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651 p.flush(); |
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652 } |
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653 |
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654 private static void printTree(PrintWriter p, Node node, int level) { |
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655 if (node == null) { |
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656 p.print("null"); |
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657 return; |
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658 } |
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659 |
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660 p.print(nodeName(node)); |
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661 |
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662 ArrayList<NodeField> childFields = new ArrayList<>(); |
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663 String sep = ""; |
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664 p.print("("); |
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665 for (NodeField field : NodeClass.get(node.getClass()).fields) { |
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666 if (field.getKind() == NodeFieldKind.CHILD || field.getKind() == NodeFieldKind.CHILDREN) { |
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667 childFields.add(field); |
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668 } else if (field.getKind() == NodeFieldKind.DATA) { |
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669 p.print(sep); |
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670 sep = ", "; |
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671 |
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672 p.print(field.getName()); |
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673 p.print(" = "); |
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674 p.print(field.loadValue(node)); |
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675 } |
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676 } |
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677 p.print(")"); |
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678 |
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679 if (childFields.size() != 0) { |
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680 p.print(" {"); |
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681 for (NodeField field : childFields) { |
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682 printNewLine(p, level); |
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683 p.print(field.getName()); |
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684 |
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685 Object value = field.loadValue(node); |
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686 if (value == null) { |
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687 p.print(" = null "); |
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688 } else if (field.getKind() == NodeFieldKind.CHILD) { |
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689 p.print(" = "); |
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690 printTree(p, (Node) value, level + 1); |
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691 } else if (field.getKind() == NodeFieldKind.CHILDREN) { |
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692 Node[] children = (Node[]) value; |
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693 p.print(" = ["); |
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694 sep = ""; |
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695 for (Node child : children) { |
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696 p.print(sep); |
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697 sep = ", "; |
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698 printTree(p, child, level + 1); |
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699 } |
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700 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
|
701 } |
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
|
702 } |
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
|
703 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:
diff
changeset
|
704 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
|
705 } |
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
|
706 } |
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
|
707 |
9754
98b004bf3985
Refactoring of NodeUtil to centralize the use of reflection
Christian Wimmer <christian.wimmer@oracle.com>
parents:
9538
diff
changeset
|
708 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:
diff
changeset
|
709 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
|
710 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
|
711 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
|
712 } |
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
|
713 } |
10742
99789440ce28
Truffle: Added assertions to replaceChild.
Christian Humer <christian.humer@gmail.com>
parents:
10704
diff
changeset
|
714 |
10845
e9248ebb1d79
Truffle: ignore null children in NodeUtil.findNodeChildren; refactoring.
Andreas Woess <andreas.woess@jku.at>
parents:
10793
diff
changeset
|
715 private static String nodeName(Node node) { |
e9248ebb1d79
Truffle: ignore null children in NodeUtil.findNodeChildren; refactoring.
Andreas Woess <andreas.woess@jku.at>
parents:
10793
diff
changeset
|
716 return node.getClass().getSimpleName(); |
e9248ebb1d79
Truffle: ignore null children in NodeUtil.findNodeChildren; refactoring.
Andreas Woess <andreas.woess@jku.at>
parents:
10793
diff
changeset
|
717 } |
7267
a4b84ba6dc2e
Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
718 } |