Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/typesystem/TypeSystemParser.java @ 10600:e93efe3ba5f4
Truffle-DSL: rewritten polymorphic optimization for simpler generated code.
author | Christian Humer <christian.humer@gmail.com> |
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date | Tue, 02 Jul 2013 14:51:05 +0200 |
parents | 79041ab43660 |
children | 4830676526e3 |
rev | line source |
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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.typesystem; |
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24 |
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25 import static com.oracle.truffle.dsl.processor.Utils.*; |
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26 |
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27 import java.lang.annotation.*; |
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28 import java.util.*; |
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29 |
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30 import javax.lang.model.element.*; |
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31 import javax.lang.model.type.*; |
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32 import javax.lang.model.util.*; |
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33 |
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34 import com.oracle.truffle.api.dsl.*; |
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35 import com.oracle.truffle.dsl.processor.*; |
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36 import com.oracle.truffle.dsl.processor.template.*; |
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37 |
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38 public class TypeSystemParser extends TemplateParser<TypeSystemData> { |
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39 |
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40 public static final List<Class<TypeSystem>> ANNOTATIONS = Arrays.asList(TypeSystem.class); |
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41 |
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42 public TypeSystemParser(ProcessorContext c) { |
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43 super(c); |
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44 } |
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45 |
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46 @Override |
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47 public Class<? extends Annotation> getAnnotationType() { |
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48 return TypeSystem.class; |
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49 } |
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50 |
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51 @Override |
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52 protected TypeSystemData parse(Element element, AnnotationMirror mirror) { |
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53 TypeElement templateType = (TypeElement) element; |
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54 AnnotationMirror templateTypeAnnotation = mirror; |
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55 TypeSystemData typeSystem = new TypeSystemData(templateType, templateTypeAnnotation); |
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56 |
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57 // annotation type on class path!? |
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58 TypeElement annotationTypeElement = processingEnv.getElementUtils().getTypeElement(getAnnotationType().getCanonicalName()); |
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59 if (annotationTypeElement == null) { |
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60 typeSystem.addError("Required class %s is not on the classpath.", getAnnotationType().getName()); |
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61 } |
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62 if (templateType.getModifiers().contains(Modifier.PRIVATE)) { |
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63 typeSystem.addError("A @%s must have at least package protected visibility.", getAnnotationType().getName()); |
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64 } |
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65 |
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66 if (templateType.getModifiers().contains(Modifier.FINAL)) { |
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67 typeSystem.addError("The @%s must not be final.", getAnnotationType().getName()); |
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68 } |
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69 if (typeSystem.hasErrors()) { |
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70 return typeSystem; |
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71 } |
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72 |
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73 typeSystem.setTypes(parseTypes(typeSystem)); |
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74 if (typeSystem.getTypes() == null) { |
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75 return typeSystem; |
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76 } |
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77 |
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78 TypeMirror genericType = context.getType(Object.class); |
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79 TypeData voidType = new TypeData(typeSystem, typeSystem.getTypes().size(), null, context.getType(void.class), context.getType(Void.class)); |
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80 |
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81 typeSystem.setGenericType(genericType); |
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82 typeSystem.setVoidType(voidType); |
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83 |
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84 verifyExclusiveMethodAnnotation(typeSystem, TypeCast.class, TypeCheck.class); |
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85 |
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86 List<Element> elements = new ArrayList<>(context.getEnvironment().getElementUtils().getAllMembers(templateType)); |
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87 |
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88 List<TypeCastData> casts = new TypeCastParser(context, typeSystem).parse(elements); |
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89 List<TypeCheckData> checks = new TypeCheckParser(context, typeSystem).parse(elements); |
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90 |
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91 if (casts == null || checks == null) { |
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92 return typeSystem; |
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93 } |
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94 |
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95 for (TypeCheckData check : checks) { |
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96 check.getCheckedType().addTypeCheck(check); |
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97 } |
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98 |
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99 for (TypeCastData cast : casts) { |
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100 cast.getTargetType().addTypeCast(cast); |
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101 } |
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102 |
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103 verifyGenericTypeChecksAndCasts(typeSystem); |
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104 verifyMethodSignatures(typeSystem); |
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105 verifyNamesUnique(typeSystem); |
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106 |
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107 return typeSystem; |
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108 } |
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109 |
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110 private static void verifyGenericTypeChecksAndCasts(TypeSystemData typeSystem) { |
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111 for (TypeData type : typeSystem.getTypes()) { |
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112 if (!type.getTypeChecks().isEmpty()) { |
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113 boolean hasGeneric = false; |
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114 for (TypeCheckData typeCheck : type.getTypeChecks()) { |
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115 if (typeCheck.isGeneric()) { |
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116 hasGeneric = true; |
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117 break; |
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118 } |
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119 } |
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120 if (!hasGeneric) { |
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121 type.addError("No generic but specific @%s method %s for type %s specified. " + "Specify a generic @%s method with parameter type %s to resolve this.", |
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122 TypeCheck.class.getSimpleName(), TypeSystemCodeGenerator.isTypeMethodName(type), Utils.getSimpleName(type.getBoxedType()), TypeCheck.class.getSimpleName(), |
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123 Object.class.getSimpleName()); |
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124 } |
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125 } |
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126 if (!type.getTypeCasts().isEmpty()) { |
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127 boolean hasGeneric = false; |
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128 for (TypeCastData typeCast : type.getTypeCasts()) { |
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129 if (typeCast.isGeneric()) { |
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130 hasGeneric = true; |
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131 break; |
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132 } |
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133 } |
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134 if (!hasGeneric) { |
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135 type.addError("No generic but specific @%s method %s for type %s specified. " + "Specify a generic @%s method with parameter type %s to resolve this.", |
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136 TypeCast.class.getSimpleName(), TypeSystemCodeGenerator.asTypeMethodName(type), Utils.getSimpleName(type.getBoxedType()), TypeCast.class.getSimpleName(), |
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137 Object.class.getSimpleName()); |
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138 } |
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139 } |
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140 } |
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141 } |
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142 |
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143 private List<TypeData> parseTypes(TypeSystemData typeSystem) { |
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144 List<TypeData> types = new ArrayList<>(); |
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145 List<TypeMirror> typeMirrors = Utils.getAnnotationValueList(TypeMirror.class, typeSystem.getTemplateTypeAnnotation(), "value"); |
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146 if (typeMirrors.isEmpty()) { |
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147 typeSystem.addError("At least one type must be defined."); |
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148 return types; |
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149 } |
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150 |
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151 final AnnotationValue annotationValue = Utils.getAnnotationValue(typeSystem.getTemplateTypeAnnotation(), "value"); |
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152 final TypeMirror objectType = context.getType(Object.class); |
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153 |
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154 int index = 0; |
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155 for (TypeMirror primitiveType : typeMirrors) { |
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156 TypeMirror boxedType = Utils.boxType(context, primitiveType); |
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157 TypeData typeData = new TypeData(typeSystem, index, annotationValue, primitiveType, boxedType); |
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158 |
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159 if (isPrimitiveWrapper(primitiveType)) { |
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160 typeData.addError("Types must not contain primitive wrapper types."); |
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161 } |
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162 |
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163 if (Utils.typeEquals(boxedType, objectType)) { |
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164 typeData.addError("Types must not contain the generic type java.lang.Object."); |
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165 } |
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166 |
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167 types.add(typeData); |
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168 index++; |
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169 } |
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170 |
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171 verifyTypeOrder(types); |
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172 |
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173 types.add(new TypeData(typeSystem, index, annotationValue, objectType, objectType)); |
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174 |
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175 return types; |
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176 } |
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177 |
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178 private static void verifyTypeOrder(List<TypeData> types) { |
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179 Map<String, List<String>> invalidTypes = new HashMap<>(); |
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180 |
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181 for (int i = types.size() - 1; i >= 0; i--) { |
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182 TypeData typeData = types.get(i); |
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183 TypeMirror type = typeData.getBoxedType(); |
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184 if (invalidTypes.containsKey(Utils.getQualifiedName(type))) { |
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185 typeData.addError("Invalid type order. The type(s) %s are inherited from a earlier defined type %s.", invalidTypes.get(Utils.getQualifiedName(type)), Utils.getQualifiedName(type)); |
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186 } |
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187 List<String> nextInvalidTypes = Utils.getQualifiedSuperTypeNames(Utils.fromTypeMirror(type)); |
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188 nextInvalidTypes.add(getQualifiedName(type)); |
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189 |
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190 for (String qualifiedName : nextInvalidTypes) { |
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191 List<String> inheritedTypes = invalidTypes.get(qualifiedName); |
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192 if (inheritedTypes == null) { |
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193 inheritedTypes = new ArrayList<>(); |
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194 invalidTypes.put(qualifiedName, inheritedTypes); |
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195 } |
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196 inheritedTypes.add(Utils.getQualifiedName(typeData.getBoxedType())); |
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197 } |
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198 } |
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199 } |
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200 |
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201 private boolean isPrimitiveWrapper(TypeMirror type) { |
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202 Types types = context.getEnvironment().getTypeUtils(); |
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203 for (TypeKind kind : TypeKind.values()) { |
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204 if (!kind.isPrimitive()) { |
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205 continue; |
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206 } |
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207 if (Utils.typeEquals(type, types.boxedClass(types.getPrimitiveType(kind)).asType())) { |
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208 return true; |
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209 } |
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210 } |
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211 return false; |
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212 } |
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213 |
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214 private void verifyMethodSignatures(TypeSystemData typeSystem) { |
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215 Set<String> generatedIsMethodNames = new HashSet<>(); |
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216 Set<String> generatedAsMethodNames = new HashSet<>(); |
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217 Set<String> generatedExpectMethodNames = new HashSet<>(); |
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218 |
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219 for (TypeData typeData : typeSystem.getTypes()) { |
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220 generatedIsMethodNames.add(TypeSystemCodeGenerator.isTypeMethodName(typeData)); |
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221 generatedAsMethodNames.add(TypeSystemCodeGenerator.asTypeMethodName(typeData)); |
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222 generatedExpectMethodNames.add(TypeSystemCodeGenerator.expectTypeMethodName(typeData)); |
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223 } |
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224 |
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225 List<ExecutableElement> methods = ElementFilter.methodsIn(typeSystem.getTemplateType().getEnclosedElements()); |
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226 for (ExecutableElement method : methods) { |
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227 if (method.getModifiers().contains(Modifier.PRIVATE)) { |
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228 // will not conflict overridden methods |
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229 continue; |
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230 } else if (method.getParameters().size() != 1) { |
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231 continue; |
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232 } |
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233 String methodName = method.getSimpleName().toString(); |
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234 if (generatedIsMethodNames.contains(methodName)) { |
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235 verifyIsMethod(typeSystem, method); |
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236 } else if (generatedAsMethodNames.contains(methodName)) { |
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237 verifyAsMethod(typeSystem, method); |
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238 } else if (generatedExpectMethodNames.contains(methodName)) { |
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239 verifyExpectMethod(typeSystem); |
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240 } |
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241 } |
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242 } |
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243 |
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244 private boolean verifyIsMethod(TypeSystemData typeSystem, ExecutableElement method) { |
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245 AnnotationMirror mirror = Utils.findAnnotationMirror(processingEnv, method, TypeCheck.class); |
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246 if (mirror == null) { |
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247 typeSystem.addError("Method starting with the pattern is${typeName} must be annotated with @%s.", TypeCheck.class.getSimpleName()); |
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248 return false; |
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249 } |
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250 return true; |
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251 } |
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252 |
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253 private boolean verifyAsMethod(TypeSystemData typeSystem, ExecutableElement method) { |
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254 AnnotationMirror mirror = Utils.findAnnotationMirror(processingEnv, method, TypeCast.class); |
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255 if (mirror == null) { |
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256 typeSystem.addError("Method starting with the pattern as${typeName} must be annotated with @%s.", TypeCast.class.getSimpleName()); |
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257 return false; |
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258 } |
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259 return true; |
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260 } |
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261 |
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262 private static boolean verifyExpectMethod(TypeSystemData typeSystem) { |
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263 typeSystem.addError("Method starting with the pattern expect${typeName} must not be declared manually."); |
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264 return false; |
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265 } |
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266 |
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267 private static void verifyNamesUnique(TypeSystemData typeSystem) { |
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268 List<TypeData> types = typeSystem.getTypes(); |
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269 for (int i = 0; i < types.size(); i++) { |
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270 for (int j = i + 1; j < types.size(); j++) { |
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271 String name1 = Utils.getSimpleName(types.get(i).getBoxedType()); |
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272 String name2 = Utils.getSimpleName(types.get(j).getBoxedType()); |
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273 if (name1.equalsIgnoreCase(name2)) { |
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274 typeSystem.addError("Two types result in the same name: %s, %s.", name1, name2); |
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275 } |
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276 } |
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277 } |
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278 } |
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279 } |