Mercurial > hg > truffle
annotate truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/TruffleProcessor.java @ 22020:bc92dd85cf08
fixed incomplete or redundant "annotationProcessors" attributes
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 20 Jul 2015 12:50:10 +0200 |
parents | 9c8c0937da41 |
children | dc83cc1f94f2 |
rev | line source |
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1 /* |
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2 * Copyright (c) 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; |
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24 |
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25 import java.lang.annotation.*; |
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26 import java.util.*; |
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27 |
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28 import javax.annotation.processing.*; |
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29 import javax.lang.model.*; |
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30 import javax.lang.model.element.*; |
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31 import javax.tools.Diagnostic.Kind; |
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32 |
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33 import com.oracle.truffle.dsl.processor.ProcessorContext.ProcessCallback; |
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34 import com.oracle.truffle.dsl.processor.generator.*; |
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35 import com.oracle.truffle.dsl.processor.java.*; |
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36 import com.oracle.truffle.dsl.processor.parser.*; |
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37 |
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38 /** |
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39 * THIS IS NOT PUBLIC API. |
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40 */ |
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41 public class TruffleProcessor extends AbstractProcessor implements ProcessCallback { |
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42 |
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43 private List<AnnotationProcessor<?>> generators; |
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44 |
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45 @Override |
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46 public SourceVersion getSupportedSourceVersion() { |
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47 return SourceVersion.latest(); |
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48 } |
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49 |
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50 @Override |
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51 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
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52 if (!roundEnv.processingOver()) { |
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53 processImpl(roundEnv); |
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54 } |
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55 return false; |
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56 } |
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57 |
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58 private void processImpl(RoundEnvironment env) { |
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59 // TODO run verifications that other annotations are not processed out of scope of the |
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60 // operation or typelattice. |
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61 try { |
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62 ProcessorContext.setThreadLocalInstance(new ProcessorContext(processingEnv, this)); |
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63 for (AnnotationProcessor<?> generator : getGenerators()) { |
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64 AbstractParser<?> parser = generator.getParser(); |
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65 if (parser.getAnnotationType() != null) { |
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66 for (Element e : env.getElementsAnnotatedWith(parser.getAnnotationType())) { |
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67 processElement(generator, e, false); |
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68 } |
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69 } |
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70 |
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71 for (Class<? extends Annotation> annotationType : parser.getTypeDelegatedAnnotationTypes()) { |
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72 for (Element e : env.getElementsAnnotatedWith(annotationType)) { |
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73 TypeElement processedType; |
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74 if (parser.isDelegateToRootDeclaredType()) { |
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75 processedType = ElementUtils.findRootEnclosingType(e); |
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76 } else { |
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77 processedType = ElementUtils.findNearestEnclosingType(e); |
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78 } |
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79 processElement(generator, processedType, false); |
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80 } |
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81 } |
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82 |
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83 } |
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84 } finally { |
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85 ProcessorContext.setThreadLocalInstance(null); |
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86 } |
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87 } |
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88 |
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89 private static void processElement(AnnotationProcessor<?> generator, Element e, boolean callback) { |
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90 try { |
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91 generator.process(e, callback); |
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92 } catch (Throwable e1) { |
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93 handleThrowable(generator, e1, e); |
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94 } |
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95 } |
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96 |
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97 private static void handleThrowable(AnnotationProcessor<?> generator, Throwable t, Element e) { |
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98 String message = "Uncaught error in " + generator.getClass().getSimpleName() + " while processing " + e + " "; |
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99 ProcessorContext.getInstance().getEnvironment().getMessager().printMessage(Kind.ERROR, message + ": " + ElementUtils.printException(t), e); |
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100 } |
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101 |
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102 @Override |
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103 public void callback(TypeElement template) { |
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104 for (AnnotationProcessor<?> generator : generators) { |
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105 Class<? extends Annotation> annotationType = generator.getParser().getAnnotationType(); |
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106 if (annotationType != null) { |
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107 Annotation annotation = template.getAnnotation(annotationType); |
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108 if (annotation != null) { |
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109 processElement(generator, template, true); |
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110 } |
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111 } |
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112 } |
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113 } |
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114 |
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115 @Override |
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116 public Set<String> getSupportedAnnotationTypes() { |
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117 Set<String> annotations = new HashSet<>(); |
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118 List<Class<? extends Annotation>> annotationsTypes = new ArrayList<>(); |
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119 annotationsTypes.addAll(NodeParser.ANNOTATIONS); |
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120 annotationsTypes.addAll(TypeSystemParser.ANNOTATIONS); |
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121 for (Class<? extends Annotation> type : annotationsTypes) { |
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122 annotations.add(type.getCanonicalName()); |
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123 } |
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124 return annotations; |
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125 } |
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126 |
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127 private List<AnnotationProcessor<?>> getGenerators() { |
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128 if (generators == null && processingEnv != null) { |
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129 generators = new ArrayList<>(); |
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130 generators.add(new AnnotationProcessor<>(new TypeSystemParser(), new TypeSystemCodeGenerator())); |
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131 generators.add(new AnnotationProcessor<>(new NodeParser(), new NodeCodeGenerator())); |
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132 } |
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133 return generators; |
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134 } |
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135 |
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136 @Override |
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137 public synchronized void init(ProcessingEnvironment env) { |
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138 this.processingEnv = env; |
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139 super.init(env); |
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140 } |
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141 |
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142 } |