Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/typesystem/TypeSystemCodeGenerator.java @ 8310:89006c76f737
Final fields of base node can be optionally passed to builtin specialization method. And a few fixes.
author | Christian Humer <christian.humer@gmail.com> |
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date | Fri, 15 Mar 2013 21:18:33 +0100 |
parents | 0905d796944a |
children | 07f8d136a05e |
rev | line source |
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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
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1 /* |
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2 * Copyright (c) 2012, 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.typesystem; |
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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 |
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33 import com.oracle.truffle.codegen.processor.*; |
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34 import com.oracle.truffle.codegen.processor.ast.*; |
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35 import com.oracle.truffle.codegen.processor.template.*; |
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36 |
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37 public class TypeSystemCodeGenerator extends CompilationUnitFactory<TypeSystemData> { |
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38 |
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39 public TypeSystemCodeGenerator(ProcessorContext context) { |
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40 super(context); |
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41 } |
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42 |
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43 public static String isTypeMethodName(TypeData type) { |
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44 return "is" + Utils.getTypeId(type.getBoxedType()); |
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45 } |
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46 |
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47 public static String asTypeMethodName(TypeData type) { |
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48 return "as" + Utils.getTypeId(type.getBoxedType()); |
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49 } |
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50 |
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51 public static String expectTypeMethodName(TypeData type) { |
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52 return "expect" + Utils.getTypeId(type.getBoxedType()); |
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53 } |
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54 |
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55 /** |
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56 * Finds the generated singleton field for a TypeSytemData instance. TypeSystemCodeGenerator |
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57 * must be applied to the TypeSystemData model before use. |
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58 */ |
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59 public static VariableElement findSingleton(ProcessorContext context, TypeSystemData typeSystem) { |
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60 TypeMirror type = context.findGeneratedClassBySimpleName(TypeClassFactory.typeName(typeSystem), typeSystem); |
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61 return Utils.findDeclaredField(type, TypeClassFactory.singletonName(typeSystem.getTemplateType().asType())); |
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62 } |
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63 |
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64 @Override |
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65 protected void createChildren(TypeSystemData m) { |
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66 add(new TypeClassFactory(context), m); |
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67 } |
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68 |
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69 protected static class TypeClassFactory extends ClassElementFactory<TypeSystemData> { |
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70 |
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71 private static final String LOCAL_VALUE = "value"; |
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72 |
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73 public TypeClassFactory(ProcessorContext context) { |
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74 super(context); |
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75 } |
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76 |
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77 @Override |
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78 public CodeTypeElement create(TypeSystemData typeSystem) { |
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79 String name = typeName(typeSystem); |
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80 CodeTypeElement clazz = createClass(typeSystem, modifiers(PUBLIC), name, typeSystem.getTemplateType().asType(), false); |
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81 |
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82 clazz.getImplements().add(getContext().getTruffleTypes().getTypeConversion()); |
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83 |
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84 clazz.add(createConstructorUsingFields(modifiers(PROTECTED), clazz)); |
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85 CodeVariableElement singleton = createSingleton(clazz); |
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86 clazz.add(singleton); |
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87 |
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88 clazz.add(createGetTopType(typeSystem)); |
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89 clazz.add(createConvertTo(typeSystem, singleton)); |
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90 |
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91 for (TypeData type : typeSystem.getTypes()) { |
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92 if (!type.isGeneric()) { |
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93 CodeExecutableElement isType = createIsTypeMethod(type); |
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94 if (isType != null) { |
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95 clazz.add(isType); |
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96 } |
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97 CodeExecutableElement asType = createAsTypeMethod(type); |
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98 if (asType != null) { |
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99 clazz.add(asType); |
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100 } |
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101 |
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102 for (TypeData sourceType : collectExpectSourceTypes(type)) { |
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103 CodeExecutableElement expect = createExpectTypeMethod(type, sourceType); |
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104 if (expect != null) { |
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105 clazz.add(expect); |
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106 } |
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107 } |
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108 } |
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109 } |
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110 |
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111 clazz.getEnclosedElements().addAll(typeSystem.getExtensionElements()); |
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112 |
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113 return clazz; |
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114 } |
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115 |
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116 private static List<TypeData> collectExpectSourceTypes(TypeData type) { |
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117 Set<TypeData> sourceTypes = new HashSet<>(); |
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118 sourceTypes.add(type.getTypeSystem().getGenericTypeData()); |
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119 for (TypeCastData cast : type.getTypeCasts()) { |
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120 sourceTypes.add(cast.getSourceType()); |
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121 } |
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122 for (TypeCheckData cast : type.getTypeChecks()) { |
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123 sourceTypes.add(cast.getCheckedType()); |
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124 } |
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125 return new ArrayList<>(sourceTypes); |
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126 } |
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127 |
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128 private CodeExecutableElement createConvertTo(TypeSystemData typeSystem, CodeVariableElement singleton) { |
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129 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(Object.class), "convertTo"); |
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130 method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "targetType")); |
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131 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), "value")); |
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132 |
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133 CodeTreeBuilder builder = method.createBuilder(); |
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134 |
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135 boolean first = true; |
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136 for (TypeData type : typeSystem.getTypes()) { |
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137 if (first) { |
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138 builder.startIf(); |
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139 first = false; |
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140 } else { |
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141 builder.startElseIf(); |
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142 } |
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143 builder.string("targetType").string(" == ").typeLiteral(type.getBoxedType()); |
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144 builder.end(); // if |
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145 builder.startBlock(); |
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146 |
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147 builder.startReturn(); |
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148 |
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149 if (typeEquals(type.getBoxedType(), getContext().getType(Object.class))) { |
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150 builder.string("value"); |
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151 } else { |
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152 builder.string(singleton.getName()).string(".").startCall(asTypeMethodName(type)).string("value").end(); |
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153 } |
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154 |
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155 builder.end(); // return |
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156 |
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157 builder.end(); // block |
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158 } |
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159 |
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160 builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class)).end().end(); |
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161 |
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162 return method; |
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163 } |
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164 |
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165 private CodeExecutableElement createGetTopType(TypeSystemData typeSystem) { |
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166 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(Class.class), "getTopType"); |
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167 |
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168 CodeTreeBuilder builder = method.createBuilder(); |
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169 builder.startReturn(); |
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170 if (!typeSystem.getTypes().isEmpty()) { |
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171 builder.typeLiteral(typeSystem.getTypes().get(0).getBoxedType()); |
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172 } else { |
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173 builder.null_(); |
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174 } |
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175 builder.end(); // return |
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176 |
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177 return method; |
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178 } |
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179 |
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180 private static String typeName(TypeSystemData typeSystem) { |
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181 String name = getSimpleName(typeSystem.getTemplateType()); |
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182 return name + "Gen"; |
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183 } |
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184 |
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185 private static String singletonName(TypeMirror type) { |
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186 return createConstantName(getSimpleName(type)); |
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187 } |
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188 |
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189 private CodeVariableElement createSingleton(CodeTypeElement clazz) { |
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190 CodeVariableElement field = new CodeVariableElement(modifiers(PUBLIC, STATIC, FINAL), clazz.asType(), singletonName(getModel().getTemplateType().asType())); |
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191 field.createInitBuilder().startNew(clazz.asType()).end(); |
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192 return field; |
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193 } |
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194 |
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195 private CodeExecutableElement createIsTypeMethod(TypeData type) { |
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196 if (!type.getTypeChecks().isEmpty()) { |
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197 return null; |
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198 } |
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199 |
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200 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(boolean.class), TypeSystemCodeGenerator.isTypeMethodName(type)); |
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201 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); |
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202 |
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203 CodeTreeBuilder body = method.createBuilder(); |
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204 body.startReturn().instanceOf(LOCAL_VALUE, type.getBoxedType()).end(); |
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205 |
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206 return method; |
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207 } |
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208 |
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209 private CodeExecutableElement createAsTypeMethod(TypeData type) { |
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210 if (!type.getTypeCasts().isEmpty()) { |
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211 return null; |
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212 } |
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213 |
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214 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asTypeMethodName(type)); |
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215 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); |
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216 |
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217 CodeTreeBuilder body = method.createBuilder(); |
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218 body.startAssert().startCall(isTypeMethodName(type)).string(LOCAL_VALUE).end().end(); |
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219 body.startReturn().cast(type.getPrimitiveType(), body.create().string(LOCAL_VALUE).getTree()).end(); |
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220 |
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221 return method; |
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222 } |
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223 |
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224 private CodeExecutableElement createExpectTypeMethod(TypeData expectedType, TypeData sourceType) { |
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225 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), expectedType.getPrimitiveType(), TypeSystemCodeGenerator.expectTypeMethodName(expectedType)); |
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226 method.addParameter(new CodeVariableElement(sourceType.getPrimitiveType(), LOCAL_VALUE)); |
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227 method.addThrownType(getContext().getTruffleTypes().getUnexpectedValueException()); |
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228 |
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229 CodeTreeBuilder body = method.createBuilder(); |
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230 body.startIf().startCall(null, TypeSystemCodeGenerator.isTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end().startBlock(); |
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231 body.startReturn().startCall(null, TypeSystemCodeGenerator.asTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end(); |
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232 body.end(); // if-block |
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233 body.startThrow().startNew(getContext().getTruffleTypes().getUnexpectedValueException()).string(LOCAL_VALUE).end().end(); |
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234 |
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235 return method; |
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236 } |
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237 |
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238 } |
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239 } |