Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/NodeFactoryFactory.java @ 18753:f6b8787dc113
Truffle-DSL: replace complex factory system with a much simpler version
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 29 Dec 2014 23:38:21 +0100 |
parents | 1acaa69ff61b |
children | 59bf50cc5a32 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2014, 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.generator; |
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24 |
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25 import static com.oracle.truffle.dsl.processor.java.ElementUtils.*; |
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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.dsl.*; |
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35 import com.oracle.truffle.dsl.processor.*; |
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36 import com.oracle.truffle.dsl.processor.java.*; |
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37 import com.oracle.truffle.dsl.processor.java.model.*; |
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38 import com.oracle.truffle.dsl.processor.java.model.CodeTypeMirror.ArrayCodeTypeMirror; |
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39 import com.oracle.truffle.dsl.processor.model.*; |
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40 |
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41 class NodeFactoryFactory { |
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42 |
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43 static final String FACTORY_METHOD_NAME = "create0"; |
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44 |
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45 private final ProcessorContext context; |
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46 private final NodeData node; |
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47 private final CodeTypeElement createdFactoryElement; |
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48 |
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49 public NodeFactoryFactory(ProcessorContext context, NodeData node, CodeTypeElement createdClass) { |
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50 this.context = context; |
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51 this.node = node; |
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52 this.createdFactoryElement = createdClass; |
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53 } |
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54 |
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55 private static String factoryClassName(NodeData node) { |
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56 return node.getNodeId() + "Factory"; |
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57 } |
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58 |
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59 public CodeTypeElement create() { |
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60 Modifier visibility = ElementUtils.getVisibility(node.getTemplateType().getModifiers()); |
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61 TypeMirror nodeFactory = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(context.getTruffleTypes().getNodeFactoryBase()), node.getNodeType()); |
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62 |
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63 CodeTypeElement clazz = GeneratorUtils.createClass(node, modifiers(), factoryClassName(node), null, false); |
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64 if (visibility != null) { |
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65 clazz.getModifiers().add(visibility); |
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66 } |
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67 clazz.getModifiers().add(Modifier.FINAL); |
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68 |
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69 if (createdFactoryElement != null) { |
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70 createFactoryMethods(clazz, visibility); |
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71 |
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72 clazz.setSuperClass(nodeFactory); |
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73 clazz.add(createNodeFactoryConstructor()); |
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74 clazz.add(createCreateNodeMethod()); |
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75 clazz.add(createGetInstanceMethod(visibility)); |
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76 clazz.add(createInstanceConstant(clazz.asType())); |
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77 } |
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78 |
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79 List<NodeData> children = node.getNodeDeclaringChildren(); |
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80 if (node.getDeclaringNode() == null && children.size() > 0) { |
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81 clazz.add(createGetFactories()); |
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82 } |
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83 |
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84 return clazz; |
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85 } |
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86 |
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87 private Element createNodeFactoryConstructor() { |
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88 CodeExecutableElement method = new CodeExecutableElement(modifiers(PRIVATE), null, factoryClassName(node)); |
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89 CodeTreeBuilder builder = method.createBuilder(); |
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90 builder.startStatement(); |
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91 builder.startCall("super"); |
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92 |
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93 // node type |
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94 builder.typeLiteral(node.getNodeType()); |
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95 |
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96 // execution signature |
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97 builder.startGroup(); |
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98 if (node.getChildExecutions().isEmpty()) { |
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99 builder.staticReference(context.getTruffleTypes().getDslMetadata(), NodeBaseFactory.EMPTY_CLASS_ARRAY); |
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100 } else { |
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101 builder.startNewArray(new ArrayCodeTypeMirror(context.getType(Class.class)), null); |
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102 for (NodeExecutionData execution : node.getChildExecutions()) { |
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103 builder.typeLiteral(execution.getNodeType()); |
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104 } |
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105 builder.end(); |
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106 } |
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107 builder.end(); |
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108 |
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109 // node signatures |
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110 builder.startGroup(); |
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111 builder.startNewArray(new ArrayCodeTypeMirror(new ArrayCodeTypeMirror(context.getType(Class.class))), null); |
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112 List<ExecutableElement> constructors = NodeBaseFactory.findUserConstructors(createdFactoryElement.asType()); |
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113 for (ExecutableElement constructor : constructors) { |
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114 builder.startGroup(); |
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115 if (constructor.getParameters().isEmpty()) { |
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116 builder.staticReference(context.getTruffleTypes().getDslMetadata(), NodeBaseFactory.EMPTY_CLASS_ARRAY); |
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117 } else { |
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118 builder.startNewArray(new ArrayCodeTypeMirror(context.getType(Class.class)), null); |
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119 for (VariableElement var : constructor.getParameters()) { |
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120 builder.typeLiteral(var.asType()); |
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121 } |
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122 builder.end(); |
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123 } |
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124 builder.end(); |
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125 } |
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126 builder.end(); |
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127 builder.end(); |
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128 |
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129 builder.end().end().end(); |
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130 return method; |
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131 } |
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132 |
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133 private CodeExecutableElement createCreateNodeMethod() { |
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134 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), node.getNodeType(), "createNode"); |
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135 CodeVariableElement arguments = new CodeVariableElement(context.getType(Object.class), "arguments"); |
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136 method.setVarArgs(true); |
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137 method.addParameter(arguments); |
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138 |
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139 CodeTreeBuilder builder = method.createBuilder(); |
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140 List<ExecutableElement> signatures = NodeBaseFactory.findUserConstructors(createdFactoryElement.asType()); |
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141 boolean ifStarted = false; |
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142 |
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143 for (ExecutableElement element : signatures) { |
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144 ifStarted = builder.startIf(ifStarted); |
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145 builder.string("arguments.length == " + element.getParameters().size()); |
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146 |
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147 int index = 0; |
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148 for (VariableElement param : element.getParameters()) { |
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149 if (ElementUtils.isObject(param.asType())) { |
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150 continue; |
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151 } |
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152 builder.string(" && "); |
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153 if (!param.asType().getKind().isPrimitive()) { |
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154 builder.string("(arguments[" + index + "] == null || "); |
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155 } |
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156 builder.string("arguments[" + index + "] instanceof "); |
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157 builder.type(ElementUtils.boxType(context, param.asType())); |
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158 if (!param.asType().getKind().isPrimitive()) { |
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159 builder.string(")"); |
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160 } |
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161 index++; |
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162 } |
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163 builder.end(); |
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164 builder.startBlock(); |
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165 |
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166 builder.startReturn().startCall("create"); |
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167 index = 0; |
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168 for (VariableElement param : element.getParameters()) { |
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169 builder.startGroup(); |
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170 if (!ElementUtils.isObject(param.asType())) { |
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171 builder.string("(").type(param.asType()).string(") "); |
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172 } |
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173 builder.string("arguments[").string(String.valueOf(index)).string("]"); |
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174 builder.end(); |
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175 index++; |
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176 } |
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177 builder.end().end(); |
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178 |
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179 builder.end(); // block |
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180 } |
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181 |
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182 builder.startElseBlock(); |
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183 builder.startThrow().startNew(context.getType(IllegalArgumentException.class)); |
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184 builder.doubleQuote("Invalid create signature."); |
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185 builder.end().end(); |
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186 builder.end(); // else block |
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187 return method; |
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188 } |
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189 |
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190 private ExecutableElement createGetInstanceMethod(Modifier visibility) { |
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191 TypeElement nodeFactoryType = ElementUtils.fromTypeMirror(context.getType(NodeFactory.class)); |
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192 TypeMirror returnType = ElementUtils.getDeclaredType(nodeFactoryType, node.getNodeType()); |
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193 |
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194 CodeExecutableElement method = new CodeExecutableElement(modifiers(), returnType, "getInstance"); |
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195 if (visibility != null) { |
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196 method.getModifiers().add(visibility); |
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197 } |
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198 method.getModifiers().add(Modifier.STATIC); |
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199 |
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200 String varName = instanceVarName(node); |
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201 |
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202 CodeTreeBuilder builder = method.createBuilder(); |
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203 builder.startIf(); |
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204 builder.string(varName).string(" == null"); |
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205 builder.end().startBlock(); |
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206 |
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207 builder.startStatement(); |
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208 builder.string(varName); |
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209 builder.string(" = "); |
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210 builder.startNew(factoryClassName(node)).end(); |
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211 builder.end(); |
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212 |
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213 builder.end(); |
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214 builder.startReturn().string(varName).end(); |
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215 return method; |
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216 } |
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217 |
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218 private static String instanceVarName(NodeData node) { |
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219 if (node.getDeclaringNode() != null) { |
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220 return ElementUtils.firstLetterLowerCase(factoryClassName(node)) + "Instance"; |
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221 } else { |
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222 return "instance"; |
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223 } |
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224 } |
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225 |
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226 private CodeVariableElement createInstanceConstant(TypeMirror factoryType) { |
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227 String varName = instanceVarName(node); |
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228 CodeVariableElement var = new CodeVariableElement(modifiers(), factoryType, varName); |
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229 var.getModifiers().add(Modifier.PRIVATE); |
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230 var.getModifiers().add(Modifier.STATIC); |
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231 return var; |
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232 } |
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233 |
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234 private ExecutableElement createGetFactories() { |
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235 List<NodeData> children = node.getNodeDeclaringChildren(); |
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236 if (node.needsFactory()) { |
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237 children.add(node); |
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238 } |
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239 |
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240 List<TypeMirror> nodeTypesList = new ArrayList<>(); |
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241 TypeMirror prev = null; |
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242 boolean allSame = true; |
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243 for (NodeData child : children) { |
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244 nodeTypesList.add(child.getNodeType()); |
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245 if (prev != null && !ElementUtils.typeEquals(child.getNodeType(), prev)) { |
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246 allSame = false; |
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247 } |
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248 prev = child.getNodeType(); |
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249 } |
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250 TypeMirror commonNodeSuperType = ElementUtils.getCommonSuperType(context, nodeTypesList.toArray(new TypeMirror[nodeTypesList.size()])); |
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251 |
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252 Types types = context.getEnvironment().getTypeUtils(); |
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253 TypeMirror factoryType = context.getType(NodeFactory.class); |
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254 TypeMirror baseType; |
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255 if (allSame) { |
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256 baseType = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(factoryType), commonNodeSuperType); |
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257 } else { |
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258 baseType = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(factoryType), types.getWildcardType(commonNodeSuperType, null)); |
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259 } |
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260 TypeMirror listType = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(context.getType(List.class)), baseType); |
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261 |
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262 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, STATIC), listType, "getFactories"); |
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263 |
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264 CodeTreeBuilder builder = method.createBuilder(); |
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265 builder.startReturn(); |
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266 builder.startStaticCall(context.getType(Arrays.class), "asList"); |
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267 |
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268 for (NodeData child : children) { |
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269 builder.startGroup(); |
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270 NodeData childNode = child; |
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271 List<NodeData> factories = new ArrayList<>(); |
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272 while (childNode.getDeclaringNode() != null) { |
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273 factories.add(childNode); |
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274 childNode = childNode.getDeclaringNode(); |
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275 } |
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276 Collections.reverse(factories); |
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277 for (NodeData nodeData : factories) { |
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278 builder.string(factoryClassName(nodeData)).string("."); |
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279 } |
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280 builder.string("getInstance()"); |
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281 builder.end(); |
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282 } |
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283 builder.end(); |
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284 builder.end(); |
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285 return method; |
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286 } |
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287 |
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288 private void createFactoryMethods(CodeTypeElement clazz, Modifier createVisibility) { |
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289 List<ExecutableElement> constructors = NodeBaseFactory.findUserConstructors(createdFactoryElement.asType()); |
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290 for (ExecutableElement constructor : constructors) { |
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291 clazz.add(createCreateMethod(createVisibility, constructor)); |
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292 } |
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293 } |
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294 |
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295 private CodeExecutableElement createCreateMethod(Modifier visibility, ExecutableElement constructor) { |
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296 CodeExecutableElement method = CodeExecutableElement.clone(context.getEnvironment(), constructor); |
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297 method.setSimpleName(CodeNames.of("create")); |
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298 method.getModifiers().clear(); |
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299 if (visibility != null) { |
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300 method.getModifiers().add(visibility); |
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301 } |
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302 method.getModifiers().add(Modifier.STATIC); |
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303 method.setReturnType(node.getNodeType()); |
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304 |
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305 CodeTreeBuilder body = method.createBuilder(); |
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306 body.startReturn(); |
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307 if (node.getSpecializations().isEmpty()) { |
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308 body.nullLiteral(); |
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309 } else { |
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310 body.startCall(NodeBaseFactory.nodeSpecializationClassName(node.getSpecializations().get(0)), FACTORY_METHOD_NAME); |
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311 for (VariableElement var : method.getParameters()) { |
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312 body.string(var.getSimpleName().toString()); |
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313 } |
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314 body.end(); |
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315 } |
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316 body.end(); |
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317 return method; |
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318 } |
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319 |
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320 } |