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annotate truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/NodeFactoryFactory.java @ 22157:dc83cc1f94f2

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Using fully qualified imports
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Sep 2015 11:33:22 +0200
parents 9c8c0937da41
children
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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 com.oracle.truffle.api.dsl.NodeFactory;
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26 import com.oracle.truffle.dsl.processor.ProcessorContext;
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27 import com.oracle.truffle.dsl.processor.java.ElementUtils;
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28 import static com.oracle.truffle.dsl.processor.java.ElementUtils.modifiers;
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29 import com.oracle.truffle.dsl.processor.java.model.CodeExecutableElement;
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30 import com.oracle.truffle.dsl.processor.java.model.CodeNames;
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31 import com.oracle.truffle.dsl.processor.java.model.CodeTreeBuilder;
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32 import com.oracle.truffle.dsl.processor.java.model.CodeTypeElement;
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33 import com.oracle.truffle.dsl.processor.java.model.CodeTypeMirror.ArrayCodeTypeMirror;
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34 import com.oracle.truffle.dsl.processor.java.model.CodeVariableElement;
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35 import com.oracle.truffle.dsl.processor.model.NodeData;
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36 import com.oracle.truffle.dsl.processor.model.NodeExecutionData;
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37 import java.util.List;
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38 import javax.lang.model.element.Element;
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39 import javax.lang.model.element.ExecutableElement;
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40 import javax.lang.model.element.Modifier;
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41 import static javax.lang.model.element.Modifier.PRIVATE;
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42 import static javax.lang.model.element.Modifier.PUBLIC;
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43 import javax.lang.model.element.TypeElement;
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44 import javax.lang.model.element.VariableElement;
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45 import javax.lang.model.type.TypeMirror;
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46
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47 class NodeFactoryFactory {
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48
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49 static final String EMPTY_CLASS_ARRAY = "EMPTY_CLASS_ARRAY";
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50
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51 private final ProcessorContext context;
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52 private final NodeData node;
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53 private final CodeTypeElement createdFactoryElement;
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54
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55 public NodeFactoryFactory(ProcessorContext context, NodeData node, CodeTypeElement createdClass) {
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56 this.context = context;
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57 this.node = node;
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58 this.createdFactoryElement = createdClass;
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59 }
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60
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61 public static String factoryClassName(NodeData node) {
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62 return node.getNodeId() + "Factory";
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63 }
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64
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65 public CodeTypeElement create() {
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66 Modifier visibility = ElementUtils.getVisibility(node.getTemplateType().getModifiers());
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67 TypeMirror nodeFactory = ElementUtils.getDeclaredType(ElementUtils.fromTypeMirror(context.getTruffleTypes().getNodeFactoryBase()), node.getNodeType());
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68
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69 CodeTypeElement clazz = GeneratorUtils.createClass(node, null, modifiers(), factoryClassName(node), null);
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70 if (visibility != null) {
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71 clazz.getModifiers().add(visibility);
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72 }
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73 clazz.getModifiers().add(Modifier.FINAL);
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74
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75 if (createdFactoryElement != null) {
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76 clazz.setSuperClass(nodeFactory);
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77 clazz.add(createNodeFactoryConstructor());
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78 clazz.add(createCreateNodeMethod());
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79 clazz.add(createGetInstanceMethod(visibility));
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80 clazz.add(createInstanceConstant(clazz.asType()));
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81 createFactoryMethods(clazz);
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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(), 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 = GeneratorUtils.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(), 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 = GeneratorUtils.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 public void createFactoryMethods(CodeTypeElement clazz) {
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235 List<ExecutableElement> constructors = GeneratorUtils.findUserConstructors(createdFactoryElement.asType());
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236 for (ExecutableElement constructor : constructors) {
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237 clazz.add(createCreateMethod(constructor));
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238 if (constructor instanceof CodeExecutableElement) {
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239 ElementUtils.setVisibility(constructor.getModifiers(), Modifier.PRIVATE);
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240 }
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241 }
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242 }
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243
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244 private CodeExecutableElement createCreateMethod(ExecutableElement constructor) {
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245 CodeExecutableElement method = CodeExecutableElement.clone(context.getEnvironment(), constructor);
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246 method.setSimpleName(CodeNames.of("create"));
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247 method.getModifiers().clear();
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248 method.getModifiers().add(Modifier.PUBLIC);
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249 method.getModifiers().add(Modifier.STATIC);
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250 method.setReturnType(node.getNodeType());
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251
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252 CodeTreeBuilder body = method.createBuilder();
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253 body.startReturn();
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254 if (node.getSpecializations().isEmpty()) {
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255 body.nullLiteral();
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256 } else {
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257 body.startNew(NodeGenFactory.nodeType(node));
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258 for (VariableElement var : method.getParameters()) {
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259 body.string(var.getSimpleName().toString());
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260 }
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261 body.end();
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262
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263 }
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264 body.end();
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265 return method;
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266 }
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267 }