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annotate truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/TypeSystemParser.java @ 22548:6b76a24fffbd default tip

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author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Thu, 14 Jan 2016 14:20:57 +0100
parents 4a43dc00a654
children
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1 /*
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2 * Copyright (c) 2012, 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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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.parser;
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24
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25 import com.oracle.truffle.api.dsl.TypeCast;
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26 import com.oracle.truffle.api.dsl.TypeCheck;
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27 import com.oracle.truffle.api.dsl.TypeSystem;
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28 import com.oracle.truffle.api.dsl.internal.DSLOptions;
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29 import com.oracle.truffle.dsl.processor.java.ElementUtils;
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30 import com.oracle.truffle.dsl.processor.model.ImplicitCastData;
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31 import com.oracle.truffle.dsl.processor.model.Template;
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32 import com.oracle.truffle.dsl.processor.model.TypeCastData;
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33 import com.oracle.truffle.dsl.processor.model.TypeCheckData;
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34 import com.oracle.truffle.dsl.processor.model.TypeSystemData;
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35
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36 import java.lang.annotation.Annotation;
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37 import java.util.ArrayList;
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38 import java.util.Arrays;
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39 import java.util.HashMap;
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40 import java.util.HashSet;
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41 import java.util.List;
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42 import java.util.Map;
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43 import java.util.Set;
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44
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45 import javax.lang.model.element.AnnotationMirror;
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46 import javax.lang.model.element.Element;
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47 import javax.lang.model.element.ExecutableElement;
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48 import javax.lang.model.element.Modifier;
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49 import javax.lang.model.element.TypeElement;
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50 import javax.lang.model.type.TypeKind;
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51 import javax.lang.model.type.TypeMirror;
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52 import javax.lang.model.util.ElementFilter;
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53 import javax.lang.model.util.Types;
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54
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55 @DSLOptions
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56 public class TypeSystemParser extends AbstractParser<TypeSystemData> {
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57
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58 public static final List<Class<TypeSystem>> ANNOTATIONS = Arrays.asList(TypeSystem.class);
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59
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60 @Override
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61 public Class<? extends Annotation> getAnnotationType() {
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62 return TypeSystem.class;
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63 }
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64
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65 /**
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66 * @see "https://bugs.openjdk.java.net/browse/JDK-8039214"
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67 */
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68 @SuppressWarnings("unused")
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69 private static List<Element> newElementList(List<? extends Element> src) {
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70 List<Element> workaround = new ArrayList<Element>(src);
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71 return workaround;
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72 }
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73
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74 @Override
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75 protected TypeSystemData parse(Element element, AnnotationMirror mirror) {
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76 TypeElement templateType = (TypeElement) element;
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77 AnnotationMirror templateTypeAnnotation = mirror;
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78 DSLOptions options = element.getAnnotation(DSLOptions.class);
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79 if (options == null) {
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80 options = TypeSystemParser.class.getAnnotation(DSLOptions.class);
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81 }
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82 assert options != null;
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83
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84 TypeSystemData typeSystem = new TypeSystemData(context, templateType, templateTypeAnnotation, options, false);
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86 // annotation type on class path!?
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87 TypeElement annotationTypeElement = processingEnv.getElementUtils().getTypeElement(getAnnotationType().getCanonicalName());
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88 if (annotationTypeElement == null) {
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89 typeSystem.addError("Required class %s is not on the classpath.", getAnnotationType().getName());
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90 }
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91 if (templateType.getModifiers().contains(Modifier.PRIVATE)) {
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92 typeSystem.addError("A @%s must have at least package protected visibility.", getAnnotationType().getName());
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93 }
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95 if (templateType.getModifiers().contains(Modifier.FINAL)) {
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96 typeSystem.addError("The @%s must not be final.", getAnnotationType().getName());
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97 }
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98 if (typeSystem.hasErrors()) {
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99 return typeSystem;
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100 }
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101
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102 if (typeSystem.hasErrors()) {
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103 return typeSystem;
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104 }
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105
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106 verifyExclusiveMethodAnnotation(typeSystem, TypeCast.class, TypeCheck.class);
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107
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108 List<Element> elements = newElementList(context.getEnvironment().getElementUtils().getAllMembers(templateType));
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109 List<ImplicitCastData> implicitCasts = new ImplicitCastParser(context, typeSystem).parse(elements);
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110 List<TypeCastData> casts = new TypeCastParser(context, typeSystem).parse(elements);
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111 List<TypeCheckData> checks = new TypeCheckParser(context, typeSystem).parse(elements);
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112
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113 if (casts == null || checks == null || implicitCasts == null) {
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114 return typeSystem;
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115 }
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116
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117 List<TypeMirror> legacyTypes = ElementUtils.getAnnotationValueList(TypeMirror.class, typeSystem.getTemplateTypeAnnotation(), "value");
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118 for (int i = 0; i < legacyTypes.size(); i++) {
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119 legacyTypes.set(i, ElementUtils.fillInGenericWildcards(legacyTypes.get(i)));
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120 }
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121
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122 typeSystem.getLegacyTypes().addAll(legacyTypes);
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123 verifyTypes(typeSystem);
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124 typeSystem.getLegacyTypes().add(context.getType(Object.class));
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125 typeSystem.getLegacyTypes().add(context.getType(void.class));
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126 verifyNamesUnique(typeSystem);
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127
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128 typeSystem.getImplicitCasts().addAll(implicitCasts);
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129 typeSystem.getCasts().addAll(casts);
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130 typeSystem.getChecks().addAll(checks);
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131
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132 if (typeSystem.hasErrors()) {
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133 return typeSystem;
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134 }
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135 return typeSystem;
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136 }
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137
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138 private void verifyExclusiveMethodAnnotation(Template template, Class<?>... annotationTypes) {
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139 List<ExecutableElement> methods = ElementFilter.methodsIn(template.getTemplateType().getEnclosedElements());
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140 for (ExecutableElement method : methods) {
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141 List<AnnotationMirror> foundAnnotations = new ArrayList<>();
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142 for (int i = 0; i < annotationTypes.length; i++) {
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143 Class<?> annotationType = annotationTypes[i];
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144 AnnotationMirror mirror = ElementUtils.findAnnotationMirror(context.getEnvironment(), method, annotationType);
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145 if (mirror != null) {
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146 foundAnnotations.add(mirror);
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147 }
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148 }
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149 if (foundAnnotations.size() > 1) {
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150 List<String> annotationNames = new ArrayList<>();
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151 for (AnnotationMirror mirror : foundAnnotations) {
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152 annotationNames.add("@" + ElementUtils.getSimpleName(mirror.getAnnotationType()));
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153 }
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154
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155 template.addError("Non exclusive usage of annotations %s.", annotationNames);
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156 }
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157 }
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158 }
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159
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160 private void verifyTypes(TypeSystemData typeSystem) {
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161 for (TypeMirror type : typeSystem.getLegacyTypes()) {
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162 if (isPrimitiveWrapper(type)) {
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163 typeSystem.addError("Types must not contain primitive wrapper types.");
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164 }
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165
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166 if (ElementUtils.typeEquals(type, context.getType(Object.class))) {
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167 typeSystem.addError("Types must not contain the generic type java.lang.Object.");
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168 }
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169 }
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170
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171 verifyTypeOrder(typeSystem);
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172 }
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173
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174 private static void verifyTypeOrder(TypeSystemData typeSystem) {
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175 Map<String, List<String>> invalidTypes = new HashMap<>();
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176
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177 for (int i = typeSystem.getLegacyTypes().size() - 1; i >= 0; i--) {
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178 TypeMirror typeData = typeSystem.getLegacyTypes().get(i);
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179 TypeMirror type = typeSystem.boxType(typeData);
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180 if (invalidTypes.containsKey(ElementUtils.getQualifiedName(type))) {
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181 typeSystem.addError("Invalid type order. The type(s) %s are inherited from a earlier defined type %s.", invalidTypes.get(ElementUtils.getQualifiedName(type)),
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182 ElementUtils.getQualifiedName(type));
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183 }
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184 TypeElement element = ElementUtils.fromTypeMirror(type);
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185 List<String> nextInvalidTypes = new ArrayList<>();
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186 if (element != null) {
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187 nextInvalidTypes.addAll(ElementUtils.getQualifiedSuperTypeNames(element));
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188 }
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189 nextInvalidTypes.add(ElementUtils.getQualifiedName(type));
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190
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191 for (String qualifiedName : nextInvalidTypes) {
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192 List<String> inheritedTypes = invalidTypes.get(qualifiedName);
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193 if (inheritedTypes == null) {
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194 inheritedTypes = new ArrayList<>();
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195 invalidTypes.put(qualifiedName, inheritedTypes);
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196 }
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197 inheritedTypes.add(ElementUtils.getQualifiedName(typeSystem.boxType(typeData)));
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198 }
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199 }
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200 }
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201
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202 private boolean isPrimitiveWrapper(TypeMirror type) {
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203 Types types = context.getEnvironment().getTypeUtils();
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204 for (TypeKind kind : TypeKind.values()) {
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205 if (!kind.isPrimitive()) {
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206 continue;
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207 }
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208 if (ElementUtils.typeEquals(type, types.boxedClass(types.getPrimitiveType(kind)).asType())) {
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209 return true;
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210 }
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211 }
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212 return false;
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213 }
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214
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215 private static void verifyNamesUnique(TypeSystemData typeSystem) {
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216 Set<String> usedNames = new HashSet<>();
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217 for (TypeMirror type : typeSystem.getLegacyTypes()) {
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218 String boxedName = ElementUtils.getSimpleName(typeSystem.boxType(type));
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219 String primitiveName = ElementUtils.getSimpleName(type);
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220 if (usedNames.contains(boxedName)) {
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221 typeSystem.addError("Two types result in the same boxed name: %s.", boxedName);
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222 } else if (usedNames.contains(primitiveName)) {
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223 typeSystem.addError("Two types result in the same primitive name: %s.", primitiveName);
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224 }
18783
7d67a33e1bbb Truffle-DSL: made type name verification more robust. Added some tests. (GRAAL-468 #resolve)
Christian Humer <christian.humer@gmail.com>
parents: 18782
diff changeset
225 usedNames.add(boxedName);
7d67a33e1bbb Truffle-DSL: made type name verification more robust. Added some tests. (GRAAL-468 #resolve)
Christian Humer <christian.humer@gmail.com>
parents: 18782
diff changeset
226 usedNames.add(primitiveName);
10597
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:
diff changeset
227 }
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:
diff changeset
228 }
20938
18c0f02fa4d2 Truffle-DSL: make type systems optional.
Christian Humer <christian.humer@gmail.com>
parents: 18783
diff changeset
229
10597
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:
diff changeset
230 }