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annotate graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/template/ClassElementFactory.java @ 7291:a748e4d44694

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Truffle API to specify type-specalized Node classes; annotation processor for automatic code generation of the type-specialized Node classes during the build process
author Christian Humer <christian.humer@gmail.com>
date Fri, 21 Dec 2012 10:44:31 -0800
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children 6343a09b2ec1
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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.template;
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24
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25 import static com.oracle.truffle.codegen.processor.Utils.*;
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26 import static javax.lang.model.element.Modifier.*;
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27
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28 import java.util.*;
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29
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30 import javax.lang.model.element.*;
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31 import javax.lang.model.type.*;
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32 import javax.lang.model.util.*;
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33
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34 import com.oracle.truffle.api.codegen.*;
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35 import com.oracle.truffle.codegen.processor.*;
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36 import com.oracle.truffle.codegen.processor.ast.*;
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37
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38 public abstract class ClassElementFactory<M> extends CodeElementFactory<M> {
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39
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40 public ClassElementFactory(ProcessorContext context) {
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41 super(context);
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42 }
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43
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44 @Override
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45 protected abstract CodeTypeElement create(M m);
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46
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47 protected CodeExecutableElement createConstructorUsingFields(Set<Modifier> modifiers, CodeTypeElement clazz) {
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48 CodeExecutableElement method = new CodeExecutableElement(modifiers, null, clazz.getSimpleName().toString());
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49 CodeTreeBuilder builder = method.createBuilder();
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50 TypeElement superClass = fromTypeMirror(clazz.getSuperclass());
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51 ExecutableElement constructor = findConstructor(superClass);
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52 if (constructor != null && constructor.getParameters().size() > 0) {
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53 builder.startStatement();
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54 builder.startSuperCall();
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55 for (VariableElement parameter : constructor.getParameters()) {
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56 method.addParameter(new CodeVariableElement(parameter.asType(), parameter.getSimpleName().toString()));
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57 builder.string(parameter.getSimpleName().toString());
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58 }
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59 builder.end(); // super
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60 builder.end(); // statement
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61 }
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62
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63 for (VariableElement field : clazz.getFields()) {
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64 if (field.getModifiers().contains(STATIC)) {
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65 continue;
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66 }
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67 String fieldName = field.getSimpleName().toString();
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68 method.addParameter(new CodeVariableElement(field.asType(), fieldName));
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69 builder.startStatement();
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70 builder.string("this.");
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71 builder.string(fieldName);
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72 builder.string(" = ");
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73 if (isAssignable(field.asType(), getContext().getTruffleTypes().getNode())) {
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74 builder.string("adoptChild(").string(fieldName).string(")");
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75 } else {
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76 builder.string(fieldName);
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77 }
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78 builder.end(); // statement
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79 }
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80
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81 return method;
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82 }
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83
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84 private static ExecutableElement findConstructor(TypeElement clazz) {
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85 List<ExecutableElement> constructors = ElementFilter.constructorsIn(clazz.getEnclosedElements());
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86 if (constructors.isEmpty()) {
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87 return null;
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88 } else {
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89 return constructors.get(0);
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90 }
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91 }
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92
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93 protected CodeTypeElement createClass(Template model, Set<Modifier> modifiers, String simpleName, TypeMirror superType, boolean enumType) {
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94 TypeElement templateType = model.getTemplateType();
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95
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96 PackageElement pack = getContext().getEnvironment().getElementUtils().getPackageOf(templateType);
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97 CodeTypeElement clazz = new CodeTypeElement(modifiers, enumType ? ElementKind.ENUM : ElementKind.CLASS, pack, simpleName);
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98 TypeMirror resolvedSuperType = superType;
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99 if (resolvedSuperType == null) {
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100 resolvedSuperType = getContext().getType(Object.class);
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101 }
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102 clazz.setSuperClass(resolvedSuperType);
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103
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104 CodeAnnotationMirror generatedByAnnotation = new CodeAnnotationMirror((DeclaredType) getContext().getType(GeneratedBy.class));
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105 generatedByAnnotation.setElementValue(generatedByAnnotation.findExecutableElement("value"), new CodeAnnotationValue(templateType.asType()));
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106 clazz.addAnnotationMirror(generatedByAnnotation);
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107
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108 context.registerType(model.getTemplateType(), clazz.asType());
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109
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110 return clazz;
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111 }
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112 }