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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/TruffleProcessor.java @ 16755:bd28da642eea

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Truffle-DSL: Several new features implemented: Implementation of a new code generation layout which shares code between generated nodes. Declaration order of specializations is now used as specialization order. Specializations do no longer perform fallthrough on respecialization, they now always respecialize from the first specialization. Implemented support for contains relations between specializations. Improved reachability error messages. Preliminary support for @Implies.
author Christian Humer <christian.humer@gmail.com>
date Mon, 11 Aug 2014 15:53:05 +0200
parents 288c23143d47
children 23415229349b
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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.node.*;
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35 import com.oracle.truffle.dsl.processor.typesystem.*;
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36
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37 /**
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38 * THIS IS NOT PUBLIC API.
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39 */
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40 // @SupportedAnnotationTypes({"com.oracle.truffle.codegen.Operation",
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41 // "com.oracle.truffle.codegen.TypeLattice"})
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42 @SupportedSourceVersion(SourceVersion.RELEASE_7)
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43 public class TruffleProcessor extends AbstractProcessor implements ProcessCallback {
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45 private List<AnnotationProcessor<?>> generators;
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46
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47 private RoundEnvironment round;
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48
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49 @Override
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50 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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51 if (!roundEnv.processingOver()) {
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52 processImpl(roundEnv);
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53 }
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54 return false;
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55 }
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56
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57 private void processImpl(RoundEnvironment env) {
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58 this.round = 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(env, 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 = Utils.findRootEnclosingType(e);
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76 } else {
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77 processedType = Utils.findNearestEnclosingType(e);
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78 }
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79 processElement(env, 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 this.round = null;
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87 }
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88 }
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90 private static void processElement(RoundEnvironment env, AnnotationProcessor<?> generator, Element e, boolean callback) {
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91 try {
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92 generator.process(env, e, callback);
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93 } catch (Throwable e1) {
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94 handleThrowable(generator, e1, e);
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95 }
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96 }
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97
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98 private static void handleThrowable(AnnotationProcessor<?> generator, Throwable t, Element e) {
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99 String message = "Uncaught error in " + generator.getClass().getSimpleName() + " while processing " + e;
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100 ProcessorContext.getInstance().getEnvironment().getMessager().printMessage(Kind.ERROR, message + ": " + Utils.printException(t), e);
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101 }
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103 @Override
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104 public void callback(TypeElement template) {
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105 for (AnnotationProcessor<?> generator : generators) {
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106 Class<? extends Annotation> annotationType = generator.getParser().getAnnotationType();
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107 if (annotationType != null) {
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108 Annotation annotation = template.getAnnotation(annotationType);
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109 if (annotation != null) {
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110 processElement(round, generator, template, true);
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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
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116 @Override
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117 public Set<String> getSupportedAnnotationTypes() {
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118 Set<String> annotations = new HashSet<>();
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119 List<Class<? extends Annotation>> annotationsTypes = new ArrayList<>();
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120 annotationsTypes.addAll(NodeParser.ANNOTATIONS);
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121 annotationsTypes.addAll(TypeSystemParser.ANNOTATIONS);
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122 for (Class<? extends Annotation> type : annotationsTypes) {
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123 annotations.add(type.getCanonicalName());
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124 }
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125 return annotations;
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126 }
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127
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128 private List<AnnotationProcessor<?>> getGenerators() {
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129 if (generators == null && processingEnv != null) {
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130 generators = new ArrayList<>();
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131 generators.add(new AnnotationProcessor<>(new TypeSystemParser(), new TypeSystemCodeGenerator()));
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132 generators.add(new AnnotationProcessor<>(new NodeParser(), new NodeCodeGenerator()));
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133 }
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134 return generators;
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135 }
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136
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137 @Override
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138 public synchronized void init(ProcessingEnvironment env) {
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139 this.processingEnv = env;
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140 super.init(env);
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141 }
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142
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143 }