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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/ProcessorContext.java @ 20938:18c0f02fa4d2

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Truffle-DSL: make type systems optional.
author Christian Humer <christian.humer@gmail.com>
date Tue, 14 Apr 2015 15:12:48 +0200
parents c0fb70634640
children
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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.util.*;
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27 import javax.annotation.processing.*;
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28 import javax.lang.model.element.*;
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29 import javax.lang.model.type.*;
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30 import javax.lang.model.util.*;
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31
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32 import com.oracle.truffle.api.frame.*;
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33 import com.oracle.truffle.dsl.processor.java.*;
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34 import com.oracle.truffle.dsl.processor.java.model.*;
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35 import com.oracle.truffle.dsl.processor.model.*;
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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 public class ProcessorContext {
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41
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42 private final ProcessingEnvironment environment;
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44 private final Map<String, Template> models = new HashMap<>();
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46 private final ProcessCallback callback;
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47 private final Log log;
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48 private final TruffleTypes truffleTypes;
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49
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50 ProcessorContext(ProcessingEnvironment env, ProcessCallback callback) {
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51 this.environment = env;
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52 this.callback = callback;
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53 this.log = new Log(environment);
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54 this.truffleTypes = new TruffleTypes(this);
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55 }
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56
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57 public TruffleTypes getTruffleTypes() {
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58 return truffleTypes;
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59 }
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60
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61 public Log getLog() {
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62 return log;
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63 }
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64
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65 public ProcessingEnvironment getEnvironment() {
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66 return environment;
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67 }
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68
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69 public boolean containsTemplate(TypeElement element) {
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70 return models.containsKey(ElementUtils.getQualifiedName(element));
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71 }
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73 public void registerTemplate(TypeElement element, Template model) {
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74 models.put(ElementUtils.getQualifiedName(element), model);
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75 }
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77 public Template getTemplate(TypeMirror templateTypeMirror, boolean invokeCallback) {
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78 String qualifiedName = ElementUtils.getQualifiedName(templateTypeMirror);
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79 Template model = models.get(qualifiedName);
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80 if (model == null && invokeCallback) {
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81 callback.callback(ElementUtils.fromTypeMirror(templateTypeMirror));
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82 model = models.get(qualifiedName);
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83 }
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84 return model;
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85 }
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86
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87 public DeclaredType getDeclaredType(Class<?> element) {
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88 return (DeclaredType) ElementUtils.getType(environment, element);
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89 }
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90
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91 public boolean isType(TypeMirror type, Class<?> clazz) {
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92 return ElementUtils.typeEquals(type, getType(clazz));
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93 }
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94
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95 public TypeMirror getType(Class<?> element) {
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96 return ElementUtils.getType(environment, element);
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97 }
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99 public interface ProcessCallback {
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101 void callback(TypeElement template);
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103 }
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105 public TypeMirror reloadTypeElement(TypeElement type) {
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106 return getType(type.getQualifiedName().toString());
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107 }
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109 private TypeMirror getType(String className) {
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110 TypeElement element = environment.getElementUtils().getTypeElement(className);
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111 if (element != null) {
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112 return element.asType();
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113 }
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114 return null;
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115 }
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116
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117 public TypeMirror reloadType(TypeMirror type) {
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118 if (type instanceof CodeTypeMirror) {
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119 return type;
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120 } else if (type.getKind().isPrimitive()) {
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121 return type;
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122 }
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123 Types types = getEnvironment().getTypeUtils();
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124
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125 switch (type.getKind()) {
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126 case ARRAY:
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127 return types.getArrayType(reloadType(((ArrayType) type).getComponentType()));
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128 case WILDCARD:
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129 return types.getWildcardType(((WildcardType) type).getExtendsBound(), ((WildcardType) type).getSuperBound());
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130 case DECLARED:
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131 return reloadTypeElement((TypeElement) (((DeclaredType) type).asElement()));
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132 }
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133 return type;
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134 }
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135
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136 private static final ThreadLocal<ProcessorContext> instance = new ThreadLocal<>();
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137
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138 public static void setThreadLocalInstance(ProcessorContext context) {
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139 instance.set(context);
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140 }
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141
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142 public static ProcessorContext getInstance() {
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143 return instance.get();
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144 }
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145
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146 public List<TypeMirror> getFrameTypes() {
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147 return Arrays.asList(getType(VirtualFrame.class), getType(MaterializedFrame.class), getType(Frame.class));
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148 }
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149 }