Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/ext/ExtensionParser.java @ 8252:0905d796944a
Refactored codegen error model to make error redirection a lot easier.
author | Christian Humer <christian.humer@gmail.com> |
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date | Wed, 13 Mar 2013 19:58:28 +0100 |
parents | c4c3f50fa9c2 |
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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.codegen.processor.ext; |
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24 |
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25 import java.util.*; |
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26 |
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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 import com.oracle.truffle.codegen.processor.template.*; |
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35 |
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36 public class ExtensionParser { |
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37 |
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38 private final Map<String, ExtensionProcessor> extensions = new HashMap<>(); |
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39 private final ProcessorContext context; |
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40 private final ExtensionCodeElementFactory factory; |
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41 private final ExtensionContextImpl extensionContext; |
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42 |
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43 public ExtensionParser(ProcessorContext context) { |
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44 this.context = context; |
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45 this.factory = new ExtensionCodeElementFactory(context); |
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46 this.extensionContext = new ExtensionContextImpl(context.getEnvironment(), null, factory); |
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47 } |
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48 |
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49 public List<WritableElement> parseAll(Template template, List<? extends Element> elements) { |
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50 List<WritableElement> generatedMethods = new ArrayList<>(); |
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51 parseElement(template, generatedMethods, template.getTemplateType()); |
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52 |
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53 List<? extends ExecutableElement> methods = ElementFilter.methodsIn(elements); |
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54 for (ExecutableElement method : methods) { |
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55 for (VariableElement var : method.getParameters()) { |
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56 parseElement(template, generatedMethods, var); |
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57 } |
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58 parseElement(template, generatedMethods, method); |
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59 } |
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60 |
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61 return generatedMethods; |
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62 } |
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63 |
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64 private void parseElement(Template template, List<WritableElement> elements, Element element) { |
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65 List<? extends AnnotationMirror> mirrors = element.getAnnotationMirrors(); |
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66 for (AnnotationMirror mirror : mirrors) { |
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67 ExtensionProcessor processor = findProcessor(template, mirror); |
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68 if (processor != null) { |
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69 try { |
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70 factory.generatorAnnotationMirror = mirror; |
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71 factory.generatorElement = element; |
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72 processor.process(extensionContext, mirror, element); |
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73 elements.addAll(extensionContext.returnElements()); |
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74 } catch (Throwable e) { |
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75 template.addError("Processor for '%s' failed with exception: \n\n%s.", Utils.getQualifiedName(mirror.getAnnotationType()), Utils.printException(e)); |
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76 } finally { |
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77 factory.generatorAnnotationMirror = null; |
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78 factory.generatorElement = null; |
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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 |
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84 private ExtensionProcessor findProcessor(Template template, AnnotationMirror mirror) { |
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85 String processorName = Utils.getQualifiedName(mirror.getAnnotationType()); |
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86 ExtensionProcessor processor = null; |
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87 if (extensions.containsKey(processorName)) { |
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88 processor = extensions.get(processorName); |
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89 } else { |
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90 AnnotationMirror foundExtension = Utils.findAnnotationMirror(context.getEnvironment(), mirror.getAnnotationType().asElement(), ExtensionAnnotation.class); |
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91 if (foundExtension != null) { |
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92 String className = Utils.getAnnotationValue(String.class, foundExtension, "processorClassName"); |
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93 Class<?> processorClass; |
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94 try { |
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95 processorClass = Class.forName(className); |
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96 } catch (ClassNotFoundException e) { |
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97 template.addError("Could not find processor class '%s' configured in '@%s'.", className, processorName); |
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98 return null; |
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99 } |
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100 try { |
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101 processor = (ExtensionProcessor) processorClass.newInstance(); |
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102 } catch (InstantiationException e) { |
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103 template.addError("Could not instantiate processor class '%s' configured in '@%s'.", className, processorName); |
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104 return null; |
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105 } catch (IllegalAccessException e) { |
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106 template.addError("Could not access processor class '%s' configured in '@%s'.", className, processorName); |
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107 return null; |
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108 } catch (ClassCastException e) { |
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109 template.addError("Processor class '%s' configured in '@%s' does not implement '%s'.", className, processorName, ExtensionProcessor.class.getName()); |
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110 return null; |
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111 } |
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112 } |
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113 extensions.put(processorName, processor); |
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114 } |
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115 return processor; |
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116 } |
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117 |
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118 } |