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annotate graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/typesystem/TypeSystemParser.java @ 8248:c4c3f50fa9c2

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Fixes for codegen builtins support.
author Christian Humer <christian.humer@gmail.com>
date Tue, 12 Mar 2013 11:37:32 +0100
parents 8e56c6951c86
children 0905d796944a
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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.codegen.processor.typesystem;
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25 import static com.oracle.truffle.codegen.processor.Utils.*;
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27 import java.lang.annotation.*;
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28 import java.util.*;
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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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34 import com.oracle.truffle.api.codegen.*;
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35 import com.oracle.truffle.codegen.processor.*;
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36 import com.oracle.truffle.codegen.processor.template.*;
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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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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
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56 if (!verifyTemplateType(templateType, templateTypeAnnotation)) {
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57 return null;
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58 }
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59
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60 TypeData[] types = parseTypes(templateType, templateTypeAnnotation);
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61 if (types == null) {
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62 return null;
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63 }
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64
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65 TypeMirror genericType = context.getType(Object.class);
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66 TypeData voidType = new TypeData(templateType, templateTypeAnnotation, context.getType(void.class), context.getType(Void.class));
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67
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68 TypeSystemData typeSystem = new TypeSystemData(templateType, templateTypeAnnotation, types, genericType, voidType);
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69
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70 if (!verifyExclusiveMethodAnnotation(templateType, TypeCast.class, TypeCheck.class)) {
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71 return null;
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72 }
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73
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74 List<Element> elements = new ArrayList<>(context.getEnvironment().getElementUtils().getAllMembers(templateType));
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75 typeSystem.setExtensionElements(getExtensionParser().parseAll(templateType, elements));
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76 if (typeSystem.getExtensionElements() != null) {
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77 elements.addAll(typeSystem.getExtensionElements());
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78 }
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79
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80 List<TypeCastData> casts = new TypeCastParser(context, typeSystem).parse(elements);
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81 List<TypeCheckData> checks = new TypeCheckParser(context, typeSystem).parse(elements);
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82
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83 if (casts == null || checks == null) {
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84 return null;
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85 }
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87 for (TypeCheckData check : checks) {
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88 check.getCheckedType().addTypeCheck(check);
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89 }
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91 for (TypeCastData cast : casts) {
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92 cast.getTargetType().addTypeCast(cast);
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93 }
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95 if (!verifyGenericTypeChecksAndCasts(types)) {
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96 return null;
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97 }
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99 if (!verifyMethodSignatures(element, types)) {
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100 return null;
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101 }
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102
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103 if (!verifyNamesUnique(templateType, templateTypeAnnotation, types)) {
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104 return null;
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105 }
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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 boolean verifyGenericTypeChecksAndCasts(TypeData[] types) {
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111 boolean valid = true;
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112 for (TypeData type : types) {
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113 if (!type.getTypeChecks().isEmpty()) {
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114 boolean hasGeneric = false;
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115 for (TypeCheckData typeCheck : type.getTypeChecks()) {
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116 if (typeCheck.isGeneric()) {
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117 hasGeneric = true;
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118 break;
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119 }
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120 }
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121 if (!hasGeneric) {
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122 log.error(type.getTypeSystem().getTemplateType(), "No generic but specific @%s method %s for type %s specified. "
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123 + "Specify a generic @%s method with parameter type %s to resolve this.", TypeCheck.class.getSimpleName(), TypeSystemCodeGenerator.isTypeMethodName(type),
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124 Utils.getSimpleName(type.getBoxedType()), TypeCheck.class.getSimpleName(), Object.class.getSimpleName());
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125 valid = false;
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126 }
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127 }
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128 if (!type.getTypeCasts().isEmpty()) {
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129 boolean hasGeneric = false;
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130 for (TypeCastData typeCast : type.getTypeCasts()) {
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131 if (typeCast.isGeneric()) {
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132 hasGeneric = true;
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133 break;
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134 }
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135 }
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136 if (!hasGeneric) {
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137 log.error(type.getTypeSystem().getTemplateType(), "No generic but specific @%s method %s for type %s specified. "
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138 + "Specify a generic @%s method with parameter type %s to resolve this.", TypeCast.class.getSimpleName(), TypeSystemCodeGenerator.asTypeMethodName(type),
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139 Utils.getSimpleName(type.getBoxedType()), TypeCast.class.getSimpleName(), Object.class.getSimpleName());
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140 valid = false;
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141 }
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142 }
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143 }
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144 return valid;
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145 }
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146
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147 private TypeData[] parseTypes(TypeElement templateType, AnnotationMirror templateTypeAnnotation) {
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148 List<TypeMirror> typeMirrors = Utils.getAnnotationValueList(TypeMirror.class, templateTypeAnnotation, "value");
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149 if (typeMirrors.size() == 0) {
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150 log.error(templateType, templateTypeAnnotation, "At least one type must be defined.");
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151 return null;
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152 }
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153
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154 final AnnotationValue annotationValue = Utils.getAnnotationValue(templateTypeAnnotation, "value");
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155 final TypeMirror objectType = context.getType(Object.class);
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156
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157 List<TypeData> types = new ArrayList<>();
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158 for (TypeMirror primitiveType : typeMirrors) {
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159
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160 if (isPrimitiveWrapper(primitiveType)) {
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161 log.error(templateType, templateTypeAnnotation, annotationValue, "Types must not contain primitive wrapper types.");
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162 continue;
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163 }
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164
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165 TypeMirror boxedType = Utils.boxType(context, primitiveType);
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166
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167 if (Utils.typeEquals(boxedType, objectType)) {
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168 log.error(templateType, templateTypeAnnotation, annotationValue, "Types must not contain the generic type java.lang.Object.");
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169 continue;
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170 }
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171
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172 types.add(new TypeData(templateType, templateTypeAnnotation, primitiveType, boxedType));
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173 }
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174
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175 verifyTypeOrder(templateType, templateTypeAnnotation, annotationValue, types);
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176
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177 types.add(new TypeData(templateType, templateTypeAnnotation, objectType, objectType));
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178
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179 return types.toArray(new TypeData[types.size()]);
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180 }
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181
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182 private void verifyTypeOrder(TypeElement templateType, AnnotationMirror templateTypeAnnotation, AnnotationValue annotationValue, List<TypeData> types) {
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183 Map<String, List<String>> invalidTypes = new HashMap<>();
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184
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185 for (int i = types.size() - 1; i >= 0; i--) {
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186 TypeData typeData = types.get(i);
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187 TypeMirror type = typeData.getBoxedType();
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188 if (invalidTypes.containsKey(Utils.getQualifiedName(type))) {
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189 log.error(templateType, templateTypeAnnotation, annotationValue, "Invalid type order. The type(s) %s are inherited from a earlier defined type %s.",
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190 invalidTypes.get(Utils.getQualifiedName(type)), Utils.getQualifiedName(type));
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191 }
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192 List<String> nextInvalidTypes = Utils.getQualifiedSuperTypeNames(Utils.fromTypeMirror(type));
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193 nextInvalidTypes.add(getQualifiedName(type));
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194
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195 for (String qualifiedName : nextInvalidTypes) {
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196 List<String> inheritedTypes = invalidTypes.get(qualifiedName);
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197 if (inheritedTypes == null) {
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198 inheritedTypes = new ArrayList<>();
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199 invalidTypes.put(qualifiedName, inheritedTypes);
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200 }
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201 inheritedTypes.add(Utils.getQualifiedName(typeData.getBoxedType()));
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202 }
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203 }
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204 }
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205
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206 private boolean isPrimitiveWrapper(TypeMirror type) {
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207 Types types = context.getEnvironment().getTypeUtils();
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208 for (TypeKind kind : TypeKind.values()) {
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209 if (!kind.isPrimitive()) {
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210 continue;
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211 }
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212 if (Utils.typeEquals(type, types.boxedClass(types.getPrimitiveType(kind)).asType())) {
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213 return true;
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214 }
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215 }
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216 return false;
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217 }
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218
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219 private boolean verifyMethodSignatures(Element element, TypeData[] types) {
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220 Set<String> generatedIsMethodNames = new HashSet<>();
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221 Set<String> generatedAsMethodNames = new HashSet<>();
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222 Set<String> generatedExpectMethodNames = new HashSet<>();
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223
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224 for (TypeData typeData : types) {
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225 generatedIsMethodNames.add(TypeSystemCodeGenerator.isTypeMethodName(typeData));
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226 generatedAsMethodNames.add(TypeSystemCodeGenerator.asTypeMethodName(typeData));
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227 generatedExpectMethodNames.add(TypeSystemCodeGenerator.expectTypeMethodName(typeData));
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228 }
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229
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230 boolean valid = true;
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231 List<ExecutableElement> methods = ElementFilter.methodsIn(element.getEnclosedElements());
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232 for (ExecutableElement method : methods) {
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233 if (method.getModifiers().contains(Modifier.PRIVATE)) {
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234 // will not conflict overridden methods
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235 continue;
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236 } else if (method.getParameters().size() != 1) {
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237 continue;
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238 }
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239 String methodName = method.getSimpleName().toString();
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240 if (generatedIsMethodNames.contains(methodName)) {
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241 valid &= verifyIsMethod(method);
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242 } else if (generatedAsMethodNames.contains(methodName)) {
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243 valid &= verifyAsMethod(method);
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244 } else if (generatedExpectMethodNames.contains(methodName)) {
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245 valid &= verifyExpectMethod(method);
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246 }
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247 }
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248 return valid;
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249 }
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250
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251 private boolean verifyIsMethod(ExecutableElement method) {
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252 AnnotationMirror mirror = Utils.findAnnotationMirror(processingEnv, method, TypeCheck.class);
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253 if (mirror == null) {
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254 log.error(method, "Method starting with the pattern is${typeName} must be annotated with @%s.", TypeCheck.class.getSimpleName());
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255 return false;
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256 }
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257 return true;
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258 }
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259
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260 private boolean verifyAsMethod(ExecutableElement method) {
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261 AnnotationMirror mirror = Utils.findAnnotationMirror(processingEnv, method, TypeCast.class);
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262 if (mirror == null) {
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263 log.error(method, "Method starting with the pattern as${typeName} must be annotated with @%s.", TypeCast.class.getSimpleName());
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264 return false;
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265 }
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266 return true;
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267 }
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268
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269 private boolean verifyExpectMethod(ExecutableElement method) {
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270 log.error(method, "Method starting with the pattern expect${typeName} must not be declared manually.");
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271 return false;
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272 }
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273
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274 private boolean verifyNamesUnique(TypeElement templateType, AnnotationMirror templateTypeAnnotation, TypeData[] types) {
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275 boolean valid = true;
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276 for (int i = 0; i < types.length; i++) {
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277 for (int j = i + 1; j < types.length; j++) {
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278 String name1 = Utils.getSimpleName(types[i].getBoxedType());
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279 String name2 = Utils.getSimpleName(types[j].getBoxedType());
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280 if (name1.equalsIgnoreCase(name2)) {
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281 log.error(templateType, templateTypeAnnotation, "Two types result in the same name: %s, %s.", name1, name2);
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282 valid = false;
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283 }
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284 }
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285 }
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286 return valid;
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287 }
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288 }