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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/TypeSystemParser.java @ 18761:a665483c3881

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Truffle-DSL: new node layout implementation.
author Christian Humer <christian.humer@gmail.com>
date Mon, 29 Dec 2014 23:38:54 +0100
parents 58eb9bbb60c4
children 3ea386a1036f
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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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25 import static com.oracle.truffle.dsl.processor.java.ElementUtils.*;
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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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34 import com.oracle.truffle.api.dsl.*;
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35 import com.oracle.truffle.api.dsl.internal.*;
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36 import com.oracle.truffle.dsl.processor.generator.*;
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37 import com.oracle.truffle.dsl.processor.java.*;
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38 import com.oracle.truffle.dsl.processor.model.*;
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39
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40 @DSLOptions
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41 public class TypeSystemParser extends AbstractParser<TypeSystemData> {
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42
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43 public static final List<Class<? extends Annotation>> ANNOTATIONS = Arrays.asList(TypeSystem.class, ExpectError.class);
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44
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45 @Override
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46 public Class<? extends Annotation> getAnnotationType() {
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47 return TypeSystem.class;
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48 }
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49
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50 @Override
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51 protected TypeSystemData parse(Element element, AnnotationMirror mirror) {
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52 TypeElement templateType = (TypeElement) element;
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53 AnnotationMirror templateTypeAnnotation = mirror;
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54 DSLOptions options = element.getAnnotation(DSLOptions.class);
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55 if (options == null) {
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56 options = TypeSystemParser.class.getAnnotation(DSLOptions.class);
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57 }
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58 assert options != null;
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59
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60 TypeSystemData typeSystem = new TypeSystemData(context, templateType, templateTypeAnnotation, options);
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61
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62 // annotation type on class path!?
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63 TypeElement annotationTypeElement = processingEnv.getElementUtils().getTypeElement(getAnnotationType().getCanonicalName());
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64 if (annotationTypeElement == null) {
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65 typeSystem.addError("Required class %s is not on the classpath.", getAnnotationType().getName());
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66 }
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67 if (templateType.getModifiers().contains(Modifier.PRIVATE)) {
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68 typeSystem.addError("A @%s must have at least package protected visibility.", getAnnotationType().getName());
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69 }
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71 if (templateType.getModifiers().contains(Modifier.FINAL)) {
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72 typeSystem.addError("The @%s must not be final.", getAnnotationType().getName());
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73 }
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74 if (typeSystem.hasErrors()) {
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75 return typeSystem;
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76 }
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77
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78 List<TypeData> types = parseTypes(typeSystem);
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79
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80 TypeMirror genericType = context.getType(Object.class);
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81 TypeData voidType = new TypeData(typeSystem, types.size(), null, context.getType(void.class), context.getType(Void.class));
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82 types.add(voidType);
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83
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84 typeSystem.setTypes(types);
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85 if (typeSystem.hasErrors()) {
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86 return typeSystem;
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87 }
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88 typeSystem.setGenericType(genericType);
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89 typeSystem.setVoidType(voidType);
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90
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91 TypeData booleanType = typeSystem.findTypeData(context.getType(boolean.class));
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92 if (booleanType == null) {
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93 booleanType = new TypeData(typeSystem, types.size(), null, context.getType(boolean.class), context.getType(Boolean.class));
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94 }
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95 typeSystem.setBooleanType(booleanType);
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96
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97 verifyExclusiveMethodAnnotation(typeSystem, TypeCast.class, TypeCheck.class);
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99 List<Element> elements = new ArrayList<>(context.getEnvironment().getElementUtils().getAllMembers(templateType));
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100 List<ImplicitCastData> implicitCasts = new ImplicitCastParser(context, typeSystem).parse(elements);
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101 List<TypeCastData> casts = new TypeCastParser(context, typeSystem).parse(elements);
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102 List<TypeCheckData> checks = new TypeCheckParser(context, typeSystem).parse(elements);
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103
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104 if (casts == null || checks == null || implicitCasts == null) {
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105 return typeSystem;
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106 }
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107
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108 typeSystem.setImplicitCasts(implicitCasts);
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109 typeSystem.setCasts(casts);
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110 typeSystem.setChecks(checks);
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111
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112 if (typeSystem.hasErrors()) {
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113 return typeSystem;
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114 }
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115
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116 for (TypeCheckData check : checks) {
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117 check.getCheckedType().addTypeCheck(check);
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118 }
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119
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120 for (TypeCastData cast : casts) {
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121 cast.getTargetType().addTypeCast(cast);
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122 }
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123
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124 verifyGenericTypeChecksAndCasts(typeSystem);
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125 verifyMethodSignatures(typeSystem);
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126 verifyNamesUnique(typeSystem);
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127
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128 return typeSystem;
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129 }
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130
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131 private void verifyExclusiveMethodAnnotation(Template template, Class<?>... annotationTypes) {
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132 List<ExecutableElement> methods = ElementFilter.methodsIn(template.getTemplateType().getEnclosedElements());
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133 for (ExecutableElement method : methods) {
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134 List<AnnotationMirror> foundAnnotations = new ArrayList<>();
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135 for (int i = 0; i < annotationTypes.length; i++) {
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136 Class<?> annotationType = annotationTypes[i];
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137 AnnotationMirror mirror = ElementUtils.findAnnotationMirror(context.getEnvironment(), method, annotationType);
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138 if (mirror != null) {
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139 foundAnnotations.add(mirror);
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140 }
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141 }
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142 if (foundAnnotations.size() > 1) {
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143 List<String> annotationNames = new ArrayList<>();
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144 for (AnnotationMirror mirror : foundAnnotations) {
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145 annotationNames.add("@" + ElementUtils.getSimpleName(mirror.getAnnotationType()));
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146 }
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147
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148 template.addError("Non exclusive usage of annotations %s.", annotationNames);
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149 }
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150 }
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151 }
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152
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153 private static void verifyGenericTypeChecksAndCasts(TypeSystemData typeSystem) {
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154 for (TypeData type : typeSystem.getTypes()) {
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155 if (!type.getTypeChecks().isEmpty()) {
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156 boolean hasGeneric = false;
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157 for (TypeCheckData typeCheck : type.getTypeChecks()) {
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158 if (typeCheck.isGeneric()) {
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159 hasGeneric = true;
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160 break;
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161 }
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162 }
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163 if (!hasGeneric) {
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164 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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165 TypeCheck.class.getSimpleName(), TypeSystemCodeGenerator.isTypeMethodName(type), ElementUtils.getSimpleName(type.getBoxedType()), TypeCheck.class.getSimpleName(),
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166 Object.class.getSimpleName());
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167 }
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168 }
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169 if (!type.getTypeCasts().isEmpty()) {
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170 boolean hasGeneric = false;
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171 for (TypeCastData typeCast : type.getTypeCasts()) {
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172 if (typeCast.isGeneric()) {
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173 hasGeneric = true;
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174 break;
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175 }
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176 }
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177 if (!hasGeneric) {
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178 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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179 TypeCast.class.getSimpleName(), TypeSystemCodeGenerator.asTypeMethodName(type), ElementUtils.getSimpleName(type.getBoxedType()), TypeCast.class.getSimpleName(),
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180 Object.class.getSimpleName());
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181 }
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182 }
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183 }
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184 }
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185
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186 private List<TypeData> parseTypes(TypeSystemData typeSystem) {
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187 List<TypeData> types = new ArrayList<>();
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188 List<TypeMirror> typeMirrors = ElementUtils.getAnnotationValueList(TypeMirror.class, typeSystem.getTemplateTypeAnnotation(), "value");
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189 if (typeMirrors.isEmpty()) {
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190 typeSystem.addError("At least one type must be defined.");
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191 return types;
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192 }
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193
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194 final AnnotationValue annotationValue = ElementUtils.getAnnotationValue(typeSystem.getTemplateTypeAnnotation(), "value");
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195 final TypeMirror objectType = context.getType(Object.class);
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196
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197 int index = 0;
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198 for (TypeMirror primitiveType : typeMirrors) {
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199 TypeMirror primitive = ElementUtils.fillInGenericWildcards(primitiveType);
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200
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201 TypeMirror boxedType = ElementUtils.boxType(context, primitive);
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202 TypeData typeData = new TypeData(typeSystem, index, annotationValue, primitive, boxedType);
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203
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204 if (isPrimitiveWrapper(primitive)) {
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205 typeData.addError("Types must not contain primitive wrapper types.");
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206 }
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207
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208 if (ElementUtils.typeEquals(boxedType, objectType)) {
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209 typeData.addError("Types must not contain the generic type java.lang.Object.");
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210 }
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211
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212 types.add(typeData);
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213 index++;
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214 }
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215
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216 verifyTypeOrder(types);
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217
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218 types.add(new TypeData(typeSystem, index, annotationValue, objectType, objectType));
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219 return types;
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220 }
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221
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222 private static void verifyTypeOrder(List<TypeData> types) {
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223 Map<String, List<String>> invalidTypes = new HashMap<>();
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224
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225 for (int i = types.size() - 1; i >= 0; i--) {
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226 TypeData typeData = types.get(i);
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227 TypeMirror type = typeData.getBoxedType();
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228 if (invalidTypes.containsKey(ElementUtils.getQualifiedName(type))) {
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229 typeData.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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230 ElementUtils.getQualifiedName(type));
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231 }
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232 TypeElement element = ElementUtils.fromTypeMirror(type);
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233 List<String> nextInvalidTypes = new ArrayList<>();
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234 if (element != null) {
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235 nextInvalidTypes.addAll(ElementUtils.getQualifiedSuperTypeNames(element));
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236 }
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237 nextInvalidTypes.add(getQualifiedName(type));
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238
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239 for (String qualifiedName : nextInvalidTypes) {
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240 List<String> inheritedTypes = invalidTypes.get(qualifiedName);
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241 if (inheritedTypes == null) {
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242 inheritedTypes = new ArrayList<>();
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243 invalidTypes.put(qualifiedName, inheritedTypes);
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244 }
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245 inheritedTypes.add(ElementUtils.getQualifiedName(typeData.getBoxedType()));
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246 }
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247 }
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248 }
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249
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250 private boolean isPrimitiveWrapper(TypeMirror type) {
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251 Types types = context.getEnvironment().getTypeUtils();
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252 for (TypeKind kind : TypeKind.values()) {
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253 if (!kind.isPrimitive()) {
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254 continue;
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255 }
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256 if (ElementUtils.typeEquals(type, types.boxedClass(types.getPrimitiveType(kind)).asType())) {
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257 return true;
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258 }
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259 }
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260 return false;
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261 }
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262
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263 private void verifyMethodSignatures(TypeSystemData typeSystem) {
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264 Set<String> generatedIsMethodNames = new HashSet<>();
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265 Set<String> generatedAsMethodNames = new HashSet<>();
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266 Set<String> generatedExpectMethodNames = new HashSet<>();
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267
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268 for (TypeData typeData : typeSystem.getTypes()) {
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269 generatedIsMethodNames.add(TypeSystemCodeGenerator.isTypeMethodName(typeData));
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270 generatedAsMethodNames.add(TypeSystemCodeGenerator.asTypeMethodName(typeData));
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271 generatedExpectMethodNames.add(TypeSystemCodeGenerator.expectTypeMethodName(typeData));
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272 }
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273
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274 List<ExecutableElement> methods = ElementFilter.methodsIn(typeSystem.getTemplateType().getEnclosedElements());
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275 for (ExecutableElement method : methods) {
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276 if (method.getModifiers().contains(Modifier.PRIVATE)) {
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277 // will not conflict overridden methods
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278 continue;
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279 } else if (method.getParameters().size() != 1) {
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280 continue;
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281 }
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282 String methodName = method.getSimpleName().toString();
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283 if (generatedIsMethodNames.contains(methodName)) {
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284 verifyIsMethod(typeSystem, method);
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285 } else if (generatedAsMethodNames.contains(methodName)) {
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286 verifyAsMethod(typeSystem, method);
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287 } else if (generatedExpectMethodNames.contains(methodName)) {
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288 verifyExpectMethod(typeSystem);
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289 }
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290 }
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291 }
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292
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293 private boolean verifyIsMethod(TypeSystemData typeSystem, ExecutableElement method) {
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294 AnnotationMirror mirror = ElementUtils.findAnnotationMirror(processingEnv, method, TypeCheck.class);
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295 if (mirror == null) {
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296 typeSystem.addError("Method starting with the pattern is${typeName} must be annotated with @%s.", TypeCheck.class.getSimpleName());
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297 return false;
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298 }
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299 return true;
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300 }
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301
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302 private boolean verifyAsMethod(TypeSystemData typeSystem, ExecutableElement method) {
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303 AnnotationMirror mirror = ElementUtils.findAnnotationMirror(processingEnv, method, TypeCast.class);
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304 if (mirror == null) {
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305 typeSystem.addError("Method starting with the pattern as${typeName} must be annotated with @%s.", TypeCast.class.getSimpleName());
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306 return false;
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307 }
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308 return true;
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309 }
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310
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311 private static boolean verifyExpectMethod(TypeSystemData typeSystem) {
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312 typeSystem.addError("Method starting with the pattern expect${typeName} must not be declared manually.");
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313 return false;
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314 }
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315
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316 private static void verifyNamesUnique(TypeSystemData typeSystem) {
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317 List<TypeData> types = typeSystem.getTypes();
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318 for (int i = 0; i < types.size(); i++) {
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319 for (int j = i + 1; j < types.size(); j++) {
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320 String name1 = ElementUtils.getSimpleName(types.get(i).getBoxedType());
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321 String name2 = ElementUtils.getSimpleName(types.get(j).getBoxedType());
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322 if (name1.equalsIgnoreCase(name2)) {
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323 typeSystem.addError("Two types result in the same name: %s, %s.", name1, name2);
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
324 }
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
325 }
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
326 }
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
327 }
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
328 }