Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/AnnotationProcessor.java @ 13709:c2ed2ce2cfe0
SL: another minor FrameDescriptor fix.
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 20 Jan 2014 15:18:39 +0100 |
parents | 79041ab43660 |
children | 36b53fe97fae |
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.io.*; |
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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.element.*; |
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30 import javax.lang.model.type.*; |
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31 import javax.tools.*; |
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32 |
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33 import com.oracle.truffle.dsl.processor.ast.*; |
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34 import com.oracle.truffle.dsl.processor.codewriter.*; |
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35 import com.oracle.truffle.dsl.processor.compiler.*; |
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36 import com.oracle.truffle.dsl.processor.template.*; |
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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 class AnnotationProcessor<M extends Template> { |
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42 |
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43 private final AbstractParser<M> parser; |
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44 private final CompilationUnitFactory<M> factory; |
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45 private final ProcessorContext context; |
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46 |
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47 private final Set<String> processedElements = new HashSet<>(); |
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48 |
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49 public AnnotationProcessor(ProcessorContext context, AbstractParser<M> parser, CompilationUnitFactory<M> factory) { |
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50 this.context = context; |
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51 this.parser = parser; |
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52 this.factory = factory; |
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53 } |
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54 |
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55 public AbstractParser<M> getParser() { |
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56 return parser; |
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57 } |
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58 |
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59 public ProcessorContext getContext() { |
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60 return context; |
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61 } |
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62 |
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63 @SuppressWarnings({"unchecked"}) |
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64 public void process(RoundEnvironment env, Element element, boolean callback) { |
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65 |
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66 // since it is not guaranteed to be called only once by the compiler |
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67 // we check for already processed elements to avoid errors when writing files. |
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68 if (!callback && element instanceof TypeElement) { |
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69 String qualifiedName = Utils.getQualifiedName((TypeElement) element); |
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70 if (processedElements.contains(qualifiedName)) { |
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71 return; |
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72 } |
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73 processedElements.add(qualifiedName); |
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74 } |
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75 |
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76 TypeElement type = (TypeElement) element; |
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77 |
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78 M model = (M) context.getTemplate(type.asType(), false); |
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79 boolean firstRun = !context.containsTemplate(type); |
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80 |
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81 if (firstRun || !callback) { |
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82 context.registerTemplate(type, null); |
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83 model = parser.parse(env, element); |
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84 context.registerTemplate(type, model); |
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85 |
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86 if (model != null) { |
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87 CodeCompilationUnit unit = factory.process(null, model); |
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88 unit.setGeneratorAnnotationMirror(model.getTemplateTypeAnnotation()); |
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89 unit.setGeneratorElement(model.getTemplateType()); |
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90 |
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91 DeclaredType overrideType = (DeclaredType) context.getType(Override.class); |
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92 DeclaredType unusedType = (DeclaredType) context.getType(SuppressWarnings.class); |
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93 unit.accept(new GenerateOverrideVisitor(overrideType), null); |
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94 unit.accept(new FixWarningsVisitor(context, unusedType, overrideType), null); |
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95 |
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96 if (!callback) { |
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97 unit.accept(new CodeWriter(context.getEnvironment(), element), null); |
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98 } |
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99 } |
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100 } |
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101 } |
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102 |
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103 private static class CodeWriter extends AbstractCodeWriter { |
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104 |
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105 private final Element orignalElement; |
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106 private final ProcessingEnvironment env; |
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107 |
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108 public CodeWriter(ProcessingEnvironment env, Element originalElement) { |
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109 this.env = env; |
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110 this.orignalElement = originalElement; |
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111 } |
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112 |
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113 @Override |
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114 protected Writer createWriter(CodeTypeElement clazz) throws IOException { |
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115 JavaFileObject jfo = env.getFiler().createSourceFile(clazz.getQualifiedName(), orignalElement); |
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116 return jfo.openWriter(); |
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117 } |
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118 |
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119 @Override |
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120 protected void writeHeader() { |
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121 if (env == null) { |
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122 return; |
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123 } |
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124 String comment = CompilerFactory.getCompiler(orignalElement).getHeaderComment(env, orignalElement); |
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125 if (comment != null) { |
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126 writeLn(comment); |
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127 } |
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128 } |
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129 |
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130 } |
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131 |
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132 } |