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annotate truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/compiler/JDTCompiler.java @ 21951:9c8c0937da41

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Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/compiler/JDTCompiler.java@9e944c7eaded
children 329fe954f6f2
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1 /*
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2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.dsl.processor.java.compiler;
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24
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25 import java.util.*;
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26
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27 import javax.annotation.processing.*;
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28 import javax.lang.model.element.*;
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29
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30 import com.oracle.truffle.dsl.processor.java.*;
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32 public class JDTCompiler extends AbstractCompiler {
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33
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34 public static boolean isValidElement(Element currentElement) {
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35 try {
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36 Class<?> elementClass = Class.forName("org.eclipse.jdt.internal.compiler.apt.model.ElementImpl");
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37 return elementClass.isAssignableFrom(currentElement.getClass());
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38 } catch (ClassNotFoundException e) {
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39 return false;
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40 }
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41 }
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42
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43 public List<? extends Element> getAllMembersInDeclarationOrder(ProcessingEnvironment environment, TypeElement type) {
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44 return sortBySourceOrder(new ArrayList<>(environment.getElementUtils().getAllMembers(type)));
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45
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46 }
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47
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48 public List<? extends Element> getEnclosedElementsInDeclarationOrder(TypeElement type) {
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49 return sortBySourceOrder(new ArrayList<>(type.getEnclosedElements()));
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50 }
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51
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52 private static List<? extends Element> sortBySourceOrder(List<Element> elements) {
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53 Map<TypeElement, List<Element>> groupedByEnclosing = new HashMap<>();
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54 for (Element element : elements) {
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55 Element enclosing = element.getEnclosingElement();
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56 List<Element> grouped = groupedByEnclosing.get(enclosing);
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57 if (grouped == null) {
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58 grouped = new ArrayList<>();
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59 groupedByEnclosing.put((TypeElement) enclosing, grouped);
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60 }
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61 grouped.add(element);
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62 }
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63
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64 for (TypeElement enclosing : groupedByEnclosing.keySet()) {
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65 Collections.sort(groupedByEnclosing.get(enclosing), createSourceOrderComparator(enclosing));
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66 }
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67
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68 if (groupedByEnclosing.size() == 1) {
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69 return groupedByEnclosing.get(groupedByEnclosing.keySet().iterator().next());
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70 } else {
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71 List<TypeElement> enclosingTypes = new ArrayList<>(groupedByEnclosing.keySet());
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72
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73 Collections.sort(enclosingTypes, new Comparator<TypeElement>() {
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74 public int compare(TypeElement o1, TypeElement o2) {
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75 if (ElementUtils.isSubtype(o1.asType(), o2.asType())) {
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76 return 1;
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77 } else {
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78 return -1;
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79 }
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80 }
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81 });
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82
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83 List<Element> sourceOrderElements = new ArrayList<>();
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84 for (TypeElement typeElement : enclosingTypes) {
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85 sourceOrderElements.addAll(groupedByEnclosing.get(typeElement));
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86 }
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87 return sourceOrderElements;
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88 }
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89
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90 }
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91
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92 private static Comparator<Element> createSourceOrderComparator(final TypeElement enclosing) {
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93
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94 Comparator<Element> comparator = new Comparator<Element>() {
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95
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96 final List<Object> declarationOrder = lookupDeclarationOrder(enclosing);
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97
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98 public int compare(Element o1, Element o2) {
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99 try {
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100 Element enclosing1Element = o1.getEnclosingElement();
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101 Element enclosing2Element = o2.getEnclosingElement();
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102
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103 if (!ElementUtils.typeEquals(enclosing1Element.asType(), enclosing2Element.asType())) {
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104 throw new AssertionError();
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105 }
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106
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107 Object o1Binding = field(o1, "_binding");
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108 Object o2Binding = field(o2, "_binding");
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109
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110 int i1 = declarationOrder.indexOf(o1Binding);
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111 int i2 = declarationOrder.indexOf(o2Binding);
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112
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113 if (i1 == -1 || i2 == -1) {
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114 return 0;
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115 }
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116
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117 return i1 - i2;
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118 } catch (Exception e) {
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119 throw new RuntimeException(e);
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120 }
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121 }
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122 };
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123 return comparator;
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124 }
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125
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126 private static List<Object> lookupDeclarationOrder(TypeElement type) {
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127
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128 List<Object> declarationOrder;
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129 try {
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130 Object binding = field(type, "_binding");
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131 Class<?> sourceTypeBinding = Class.forName("org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding");
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132 Class<?> binaryTypeBinding = Class.forName("org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding");
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133
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134 declarationOrder = null;
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135 if (sourceTypeBinding.isAssignableFrom(binding.getClass())) {
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136 declarationOrder = findSourceTypeOrder(binding);
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137 } else if (binaryTypeBinding.isAssignableFrom(binding.getClass())) {
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138 declarationOrder = findBinaryTypeOrder(binding);
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139 }
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140 } catch (Exception e) {
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141 throw new RuntimeException(e);
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142 }
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143
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144 return declarationOrder;
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145 }
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146
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147 private static List<Object> findBinaryTypeOrder(Object binding) throws Exception {
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148 Object binaryType = lookupBinaryType(binding);
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149 final Object[] sortedMethods = (Object[]) method(binaryType, "getMethods");
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150
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151 List<Object> sortedElements = new ArrayList<>();
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152 if (sortedMethods != null) {
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153 sortedElements.addAll(Arrays.asList(sortedMethods));
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154 }
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155 final Object[] sortedFields = (Object[]) method(binaryType, "getFields");
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156 if (sortedFields != null) {
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157 sortedElements.addAll(Arrays.asList(sortedFields));
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158 }
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159 final Object[] sortedTypes = (Object[]) method(binaryType, "getMemberTypes", new Class[0]);
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160 if (sortedTypes != null) {
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161 sortedElements.addAll(Arrays.asList(sortedTypes));
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162 }
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163
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164 Collections.sort(sortedElements, new Comparator<Object>() {
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165 public int compare(Object o1, Object o2) {
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166 try {
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167 int structOffset1 = (int) field(o1, "structOffset");
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168 int structOffset2 = (int) field(o2, "structOffset");
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169 return structOffset1 - structOffset2;
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170 } catch (Exception e) {
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171 throw new RuntimeException(e);
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172 }
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173 }
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174 });
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175
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176 Class<?> binaryMethod = Class.forName("org.eclipse.jdt.internal.compiler.env.IBinaryMethod");
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177 Class<?> binaryField = Class.forName("org.eclipse.jdt.internal.compiler.env.IBinaryField");
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178 Class<?> nestedType = Class.forName("org.eclipse.jdt.internal.compiler.env.IBinaryNestedType");
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179
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180 List<Object> bindings = new ArrayList<>();
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181 for (Object sortedElement : sortedElements) {
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182 Class<?> elementClass = sortedElement.getClass();
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183 if (binaryMethod.isAssignableFrom(elementClass)) {
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184 char[] selector = (char[]) method(sortedElement, "getSelector");
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185 Object[] foundBindings = (Object[]) method(binding, "getMethods", new Class[]{char[].class}, selector);
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186 if (foundBindings == null || foundBindings.length == 0) {
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187 continue;
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188 } else if (foundBindings.length == 1) {
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189 bindings.add(foundBindings[0]);
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190 } else {
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191 char[] idescriptor = (char[]) method(sortedElement, "getMethodDescriptor");
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192 for (Object foundBinding : foundBindings) {
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193 char[] descriptor = (char[]) method(foundBinding, "signature");
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194 if (descriptor == null && idescriptor == null || Arrays.equals(descriptor, idescriptor)) {
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195 bindings.add(foundBinding);
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196 break;
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197 }
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198 }
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199 }
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200 } else if (binaryField.isAssignableFrom(elementClass)) {
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201 char[] selector = (char[]) method(sortedElement, "getName");
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202 Object foundField = method(binding, "getField", new Class[]{char[].class, boolean.class}, selector, true);
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diff changeset
203 if (foundField != null) {
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204 bindings.add(foundField);
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205 }
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206 } else if (nestedType.isAssignableFrom(elementClass)) {
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207 char[] selector = (char[]) method(sortedElement, "getSourceName");
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208 Object foundType = method(binding, "getMemberType", new Class[]{char[].class}, selector);
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diff changeset
209 if (foundType != null) {
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210 bindings.add(foundType);
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211 }
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212 } else {
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213 throw new AssertionError("Unexpected encountered type " + elementClass);
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214 }
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215 }
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216
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217 return bindings;
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218 }
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219
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220 private static Object lookupBinaryType(Object binding) throws Exception {
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221 Object lookupEnvironment = field(binding, "environment");
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222 Object compoundClassName = field(binding, "compoundName");
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223 Object nameEnvironment = field(lookupEnvironment, "nameEnvironment");
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224 Object nameEnvironmentAnswer = method(nameEnvironment, "findType", new Class[]{char[][].class}, compoundClassName);
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225 Object binaryType = method(nameEnvironmentAnswer, "getBinaryType", new Class[0]);
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226 return binaryType;
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227 }
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228
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229 private static List<Object> findSourceTypeOrder(Object binding) throws Exception {
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230 Object referenceContext = field(field(binding, "scope"), "referenceContext");
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231
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232 TreeMap<Integer, Object> orderedBindings = new TreeMap<>();
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233
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234 collectSourceOrder(orderedBindings, referenceContext, "methods");
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235 collectSourceOrder(orderedBindings, referenceContext, "fields");
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236 collectSourceOrder(orderedBindings, referenceContext, "memberTypes");
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237
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238 return new ArrayList<>(orderedBindings.values());
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239 }
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240
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241 private static void collectSourceOrder(TreeMap<Integer, Object> orderedBindings, Object referenceContext, String fieldName) throws Exception {
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242 Object[] declarations = (Object[]) field(referenceContext, fieldName);
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243 if (declarations != null) {
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244 for (int i = 0; i < declarations.length; i++) {
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245 Integer declarationSourceStart = (Integer) field(declarations[i], "declarationSourceStart");
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246 orderedBindings.put(declarationSourceStart, field(declarations[i], "binding"));
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247 }
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248 }
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249 }
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250
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251 @Override
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252 public String getMethodBody(ProcessingEnvironment env, ExecutableElement method) {
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253 try {
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254
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255 char[] source = getSource(method);
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256 if (source == null) {
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257 return null;
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258 }
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259
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260 /*
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261 * AbstractMethodDeclaration decl =
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262 * ((MethodBinding)(((ElementImpl)method)._binding)).sourceMethod(); int bodyStart =
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263 * decl.bodyStart; int bodyEnd = decl.bodyEnd;
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264 */
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265 Object decl = method(field(method, "_binding"), "sourceMethod");
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266 int bodyStart = (int) field(decl, "bodyStart");
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267 int bodyEnd = (int) field(decl, "bodyEnd");
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268
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269 int length = bodyEnd - bodyStart;
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270 char[] target = new char[length];
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271 System.arraycopy(source, bodyStart, target, 0, length);
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272
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273 return new String(target);
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274 } catch (Exception e) {
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275 return ElementUtils.printException(e);
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276 }
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277 }
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278
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279 private static char[] getSource(Element element) throws Exception {
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280 /*
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281 * Binding binding = ((ElementImpl)element)._binding; char[] source = null; if (binding
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282 * instanceof MethodBinding) { source = ((MethodBinding)
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283 * binding).sourceMethod().compilationResult.getCompilationUnit().getContents(); } else if
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284 * (binding instanceof SourceTypeBinding) { source =
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285 * ((SourceTypeBinding)binding).scope.referenceContext
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286 * .compilationResult.compilationUnit.getContents(); } return source;
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287 */
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288
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289 Object binding = field(element, "_binding");
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290 Class<?> methodBindingClass = Class.forName("org.eclipse.jdt.internal.compiler.lookup.MethodBinding");
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291 Class<?> referenceBindingClass = Class.forName("org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding");
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292
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293 char[] source = null;
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294 if (methodBindingClass.isAssignableFrom(binding.getClass())) {
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295 Object sourceMethod = method(binding, "sourceMethod");
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296 if (sourceMethod == null) {
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297 return null;
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298 }
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299 source = (char[]) method(method(field(sourceMethod, "compilationResult"), "getCompilationUnit"), "getContents");
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300 } else if (referenceBindingClass.isAssignableFrom(binding.getClass())) {
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301 source = (char[]) method(field(field(field(field(binding, "scope"), "referenceContext"), "compilationResult"), "compilationUnit"), "getContents");
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302 }
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303 return source;
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304 }
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305
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306 @Override
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307 public String getHeaderComment(ProcessingEnvironment env, Element type) {
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308 try {
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309 char[] source = getSource(type);
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310 if (source == null) {
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311 return null;
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312 }
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parents:
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313 return parseHeader(new String(source));
79041ab43660 Truffle-DSL: API-change: Renamed truffle.api.codegen to truffle.api.dsl for all projects and packages.
Christian Humer <christian.humer@gmail.com>
parents:
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314 } catch (Exception e) {
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315 return ElementUtils.printException(e);
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316 }
79041ab43660 Truffle-DSL: API-change: Renamed truffle.api.codegen to truffle.api.dsl for all projects and packages.
Christian Humer <christian.humer@gmail.com>
parents:
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317 }
79041ab43660 Truffle-DSL: API-change: Renamed truffle.api.codegen to truffle.api.dsl for all projects and packages.
Christian Humer <christian.humer@gmail.com>
parents:
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318
79041ab43660 Truffle-DSL: API-change: Renamed truffle.api.codegen to truffle.api.dsl for all projects and packages.
Christian Humer <christian.humer@gmail.com>
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319 }