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annotate graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/typesystem/TypeSystemCodeGenerator.java @ 9258:07f8d136a05e
Truffle API changes for the Frame API. Introduction of Assumptions class.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 23 Apr 2013 15:34:06 +0200 |
parents | 89006c76f737 |
children | 8b2573c8d47f |
rev | line source |
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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.add(createConstructorUsingFields(modifiers(PROTECTED), clazz)); |
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83 CodeVariableElement singleton = createSingleton(clazz); |
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84 clazz.add(singleton); |
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85 |
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86 for (TypeData type : typeSystem.getTypes()) { |
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87 if (!type.isGeneric()) { |
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88 CodeExecutableElement isType = createIsTypeMethod(type); |
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89 if (isType != null) { |
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90 clazz.add(isType); |
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91 } |
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92 CodeExecutableElement asType = createAsTypeMethod(type); |
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93 if (asType != null) { |
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94 clazz.add(asType); |
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95 } |
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96 |
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97 for (TypeData sourceType : collectExpectSourceTypes(type)) { |
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98 CodeExecutableElement expect = createExpectTypeMethod(type, sourceType); |
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99 if (expect != null) { |
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100 clazz.add(expect); |
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101 } |
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102 } |
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103 } |
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104 } |
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105 |
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106 clazz.getEnclosedElements().addAll(typeSystem.getExtensionElements()); |
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107 |
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108 return clazz; |
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109 } |
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110 |
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111 private static List<TypeData> collectExpectSourceTypes(TypeData type) { |
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112 Set<TypeData> sourceTypes = new HashSet<>(); |
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113 sourceTypes.add(type.getTypeSystem().getGenericTypeData()); |
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114 for (TypeCastData cast : type.getTypeCasts()) { |
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115 sourceTypes.add(cast.getSourceType()); |
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116 } |
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117 for (TypeCheckData cast : type.getTypeChecks()) { |
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118 sourceTypes.add(cast.getCheckedType()); |
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119 } |
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120 return new ArrayList<>(sourceTypes); |
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121 } |
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122 |
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123 private static String typeName(TypeSystemData typeSystem) { |
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124 String name = getSimpleName(typeSystem.getTemplateType()); |
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125 return name + "Gen"; |
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126 } |
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127 |
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128 private static String singletonName(TypeMirror type) { |
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129 return createConstantName(getSimpleName(type)); |
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130 } |
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131 |
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132 private CodeVariableElement createSingleton(CodeTypeElement clazz) { |
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133 CodeVariableElement field = new CodeVariableElement(modifiers(PUBLIC, STATIC, FINAL), clazz.asType(), singletonName(getModel().getTemplateType().asType())); |
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134 field.createInitBuilder().startNew(clazz.asType()).end(); |
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135 return field; |
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136 } |
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137 |
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138 private CodeExecutableElement createIsTypeMethod(TypeData type) { |
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139 if (!type.getTypeChecks().isEmpty()) { |
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140 return null; |
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141 } |
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142 |
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143 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(boolean.class), TypeSystemCodeGenerator.isTypeMethodName(type)); |
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144 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); |
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145 |
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146 CodeTreeBuilder body = method.createBuilder(); |
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147 body.startReturn().instanceOf(LOCAL_VALUE, type.getBoxedType()).end(); |
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148 |
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149 return method; |
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150 } |
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151 |
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152 private CodeExecutableElement createAsTypeMethod(TypeData type) { |
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153 if (!type.getTypeCasts().isEmpty()) { |
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154 return null; |
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155 } |
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156 |
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157 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asTypeMethodName(type)); |
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158 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); |
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159 |
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160 CodeTreeBuilder body = method.createBuilder(); |
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161 body.startAssert().startCall(isTypeMethodName(type)).string(LOCAL_VALUE).end().end(); |
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162 body.startReturn().cast(type.getPrimitiveType(), body.create().string(LOCAL_VALUE).getTree()).end(); |
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163 |
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164 return method; |
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165 } |
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166 |
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167 private CodeExecutableElement createExpectTypeMethod(TypeData expectedType, TypeData sourceType) { |
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168 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), expectedType.getPrimitiveType(), TypeSystemCodeGenerator.expectTypeMethodName(expectedType)); |
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169 method.addParameter(new CodeVariableElement(sourceType.getPrimitiveType(), LOCAL_VALUE)); |
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170 method.addThrownType(getContext().getTruffleTypes().getUnexpectedValueException()); |
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171 |
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172 CodeTreeBuilder body = method.createBuilder(); |
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173 body.startIf().startCall(null, TypeSystemCodeGenerator.isTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end().startBlock(); |
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174 body.startReturn().startCall(null, TypeSystemCodeGenerator.asTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end(); |
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175 body.end(); // if-block |
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176 body.startThrow().startNew(getContext().getTruffleTypes().getUnexpectedValueException()).string(LOCAL_VALUE).end().end(); |
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177 |
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178 return method; |
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179 } |
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180 |
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181 } |
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182 } |