Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/TruffleProcessor.java @ 21572:d6d7e51d9206
Truffle/instrumentation: catch a NPE error condition (when a tagged STATEMENT has no source information)
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Wed, 27 May 2015 20:49:09 -0700 |
parents | a665483c3881 |
children | 0a843d5a6ea5 |
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 // @SupportedAnnotationTypes({"com.oracle.truffle.codegen.Operation", |
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42 // "com.oracle.truffle.codegen.TypeLattice"}) |
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43 @SupportedSourceVersion(SourceVersion.RELEASE_7) |
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44 public class TruffleProcessor extends AbstractProcessor implements ProcessCallback { |
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45 |
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46 private List<AnnotationProcessor<?>> generators; |
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47 |
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48 @Override |
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49 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) { |
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50 if (!roundEnv.processingOver()) { |
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51 processImpl(roundEnv); |
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52 } |
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53 return false; |
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54 } |
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55 |
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56 private void processImpl(RoundEnvironment env) { |
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57 // TODO run verifications that other annotations are not processed out of scope of the |
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58 // operation or typelattice. |
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59 try { |
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60 ProcessorContext.setThreadLocalInstance(new ProcessorContext(processingEnv, this)); |
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61 for (AnnotationProcessor<?> generator : getGenerators()) { |
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62 AbstractParser<?> parser = generator.getParser(); |
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63 if (parser.getAnnotationType() != null) { |
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64 for (Element e : env.getElementsAnnotatedWith(parser.getAnnotationType())) { |
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65 processElement(generator, e, false); |
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66 } |
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67 } |
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68 |
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69 for (Class<? extends Annotation> annotationType : parser.getTypeDelegatedAnnotationTypes()) { |
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70 for (Element e : env.getElementsAnnotatedWith(annotationType)) { |
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71 TypeElement processedType; |
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72 if (parser.isDelegateToRootDeclaredType()) { |
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73 processedType = ElementUtils.findRootEnclosingType(e); |
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74 } else { |
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75 processedType = ElementUtils.findNearestEnclosingType(e); |
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76 } |
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77 processElement(generator, processedType, false); |
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78 } |
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79 } |
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80 |
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81 } |
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82 } finally { |
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83 ProcessorContext.setThreadLocalInstance(null); |
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84 } |
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85 } |
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86 |
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87 private static void processElement(AnnotationProcessor<?> generator, Element e, boolean callback) { |
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88 try { |
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89 generator.process(e, callback); |
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90 } catch (Throwable e1) { |
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91 handleThrowable(generator, e1, e); |
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92 } |
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93 } |
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94 |
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95 private static void handleThrowable(AnnotationProcessor<?> generator, Throwable t, Element e) { |
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96 String message = "Uncaught error in " + generator.getClass().getSimpleName() + " while processing " + e + " "; |
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97 ProcessorContext.getInstance().getEnvironment().getMessager().printMessage(Kind.ERROR, message + ": " + ElementUtils.printException(t), e); |
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98 } |
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99 |
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100 @Override |
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101 public void callback(TypeElement template) { |
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102 for (AnnotationProcessor<?> generator : generators) { |
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103 Class<? extends Annotation> annotationType = generator.getParser().getAnnotationType(); |
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104 if (annotationType != null) { |
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105 Annotation annotation = template.getAnnotation(annotationType); |
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106 if (annotation != null) { |
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107 processElement(generator, template, true); |
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108 } |
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109 } |
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110 } |
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111 } |
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112 |
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113 @Override |
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114 public Set<String> getSupportedAnnotationTypes() { |
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115 Set<String> annotations = new HashSet<>(); |
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116 List<Class<? extends Annotation>> annotationsTypes = new ArrayList<>(); |
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117 annotationsTypes.addAll(NodeParser.ANNOTATIONS); |
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118 annotationsTypes.addAll(TypeSystemParser.ANNOTATIONS); |
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119 for (Class<? extends Annotation> type : annotationsTypes) { |
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120 annotations.add(type.getCanonicalName()); |
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121 } |
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122 return annotations; |
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123 } |
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124 |
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125 private List<AnnotationProcessor<?>> getGenerators() { |
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126 if (generators == null && processingEnv != null) { |
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127 generators = new ArrayList<>(); |
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128 generators.add(new AnnotationProcessor<>(new TypeSystemParser(), new TypeSystemCodeGenerator())); |
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129 generators.add(new AnnotationProcessor<>(new NodeParser(), new NodeCodeGenerator())); |
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130 } |
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131 return generators; |
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132 } |
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133 |
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134 @Override |
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135 public synchronized void init(ProcessingEnvironment env) { |
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136 this.processingEnv = env; |
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137 super.init(env); |
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138 } |
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139 |
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140 } |