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annotate graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/ext/ExtensionParser.java @ 7530:5e3d1a68664e

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applied mx eclipseformat to all Java files
author Doug Simon <doug.simon@oracle.com>
date Wed, 23 Jan 2013 16:34:57 +0100
parents 6343a09b2ec1
children c4c3f50fa9c2
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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.codegen.processor.ext;
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24
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25 import java.util.*;
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27 import javax.lang.model.element.*;
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28 import javax.lang.model.util.*;
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29
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30 import com.oracle.truffle.api.codegen.*;
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31 import com.oracle.truffle.codegen.processor.*;
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32 import com.oracle.truffle.codegen.processor.api.*;
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33 import com.oracle.truffle.codegen.processor.api.element.*;
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34
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35 public class ExtensionParser {
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36
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37 private final Map<String, ExtensionProcessor> extensions = new HashMap<>();
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38 private final ProcessorContext context;
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39 private final ExtensionCodeElementFactory factory;
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40 private final ExtensionContextImpl extensionContext;
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41
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42 public ExtensionParser(ProcessorContext context) {
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43 this.context = context;
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44 this.factory = new ExtensionCodeElementFactory(context);
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45 this.extensionContext = new ExtensionContextImpl(context.getEnvironment(), null, factory);
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46 }
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47
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48 public List<WritableElement> parseAll(TypeElement typeElement, List<? extends Element> elements) {
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49 List<WritableElement> generatedMethods = new ArrayList<>();
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50 parseElement(generatedMethods, typeElement);
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51
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52 List<? extends ExecutableElement> methods = ElementFilter.methodsIn(elements);
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53 for (ExecutableElement method : methods) {
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54 for (VariableElement var : method.getParameters()) {
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55 parseElement(generatedMethods, var);
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56 }
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57 parseElement(generatedMethods, method);
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58 }
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59
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60 return generatedMethods;
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61 }
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62
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63 private void parseElement(List<WritableElement> elements, Element element) {
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64 List<? extends AnnotationMirror> mirrors = element.getAnnotationMirrors();
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65 for (AnnotationMirror mirror : mirrors) {
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66 ExtensionProcessor processor = findProcessor(element, mirror);
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67 if (processor != null) {
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68 try {
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69 factory.generatorAnnotationMirror = mirror;
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70 factory.generatorElement = element;
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71 processor.process(extensionContext, mirror, element);
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72 elements.addAll(extensionContext.returnElements());
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73 } catch (Throwable e) {
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74 context.getLog().error(element, mirror, "Processor for '%s' failed with exception: \n\n%s.", Utils.getQualifiedName(mirror.getAnnotationType()), Utils.printException(e));
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75 } finally {
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76 factory.generatorAnnotationMirror = null;
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77 factory.generatorElement = null;
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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
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83 private ExtensionProcessor findProcessor(Element element, AnnotationMirror mirror) {
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84 String processorName = Utils.getQualifiedName(mirror.getAnnotationType());
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85 ExtensionProcessor processor = null;
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86 if (extensions.containsKey(processorName)) {
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87 processor = extensions.get(processorName);
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88 } else {
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89 AnnotationMirror foundExtension = Utils.findAnnotationMirror(context.getEnvironment(), mirror.getAnnotationType().asElement(), ExtensionAnnotation.class);
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90 if (foundExtension != null) {
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91 String className = Utils.getAnnotationValueString(foundExtension, "processorClassName");
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92 Class<?> processorClass;
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93 try {
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94 processorClass = Class.forName(className);
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95 } catch (ClassNotFoundException e) {
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96 context.getLog().error(element, mirror, "Could not find processor class '%s' configured in '@%s'.", className, processorName);
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97 return null;
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98 }
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99 try {
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100 processor = (ExtensionProcessor) processorClass.newInstance();
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101 } catch (InstantiationException e) {
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102 context.getLog().error(element, mirror, "Could not instantiate processor class '%s' configured in '@%s'.", className, processorName);
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103 return null;
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104 } catch (IllegalAccessException e) {
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105 context.getLog().error(element, mirror, "Could not access processor class '%s' configured in '@%s'.", className, processorName);
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106 return null;
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107 } catch (ClassCastException e) {
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108 context.getLog().error(element, mirror, "Processor class '%s' configured in '@%s' does not implement '%s'.", className, processorName, ExtensionProcessor.class.getName());
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109 return null;
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110 }
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111 }
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112 extensions.put(processorName, processor);
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113 }
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114 return processor;
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115 }
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116
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117 }