Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/TypeSystemCodeGenerator.java @ 16820:0370880ac9ce
Truffle-DSL: better caching for type checks.
author | Christian Humer <christian.humer@gmail.com> |
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date | Wed, 13 Aug 2014 18:06:26 +0200 |
parents | 23415229349b |
children | 1acaa69ff61b |
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.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.type.*; |
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31 |
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32 import com.oracle.truffle.dsl.processor.java.*; |
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33 import com.oracle.truffle.dsl.processor.java.model.*; |
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34 import com.oracle.truffle.dsl.processor.model.*; |
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35 |
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36 public class TypeSystemCodeGenerator extends AbstractCompilationUnitFactory<TypeSystemData> { |
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37 |
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38 public static String isTypeMethodName(TypeData type) { |
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39 return "is" + ElementUtils.getTypeId(type.getBoxedType()); |
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40 } |
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41 |
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42 public static String isImplicitTypeMethodName(TypeData type) { |
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43 return "isImplicit" + ElementUtils.getTypeId(type.getBoxedType()); |
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44 } |
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45 |
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46 public static String asTypeMethodName(TypeData type) { |
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47 return "as" + ElementUtils.getTypeId(type.getBoxedType()); |
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48 } |
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49 |
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50 public static String asImplicitTypeMethodName(TypeData type) { |
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51 return "asImplicit" + ElementUtils.getTypeId(type.getBoxedType()); |
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52 } |
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53 |
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54 public static String getImplicitClass(TypeData type) { |
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55 return "getImplicit" + ElementUtils.getTypeId(type.getBoxedType()) + "Class"; |
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56 } |
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57 |
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58 public static String expectTypeMethodName(TypeData type) { |
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59 return "expect" + ElementUtils.getTypeId(type.getBoxedType()); |
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60 } |
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61 |
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62 public static String typeName(TypeSystemData typeSystem) { |
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63 String name = getSimpleName(typeSystem.getTemplateType()); |
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64 return name + "Gen"; |
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65 } |
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66 |
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67 public static String singletonName(TypeSystemData type) { |
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68 return createConstantName(getSimpleName(type.getTemplateType().asType())); |
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69 } |
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70 |
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71 @Override |
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72 protected void createChildren(TypeSystemData m) { |
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73 add(new TypeClassFactory(), m); |
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74 } |
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75 |
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76 private static class TypeClassFactory extends AbstractClassElementFactory<TypeSystemData> { |
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77 |
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78 private static final String LOCAL_VALUE = "value"; |
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79 |
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80 @Override |
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81 public CodeTypeElement create(TypeSystemData typeSystem) { |
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82 String name = typeName(typeSystem); |
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83 CodeTypeElement clazz = createClass(typeSystem, modifiers(PUBLIC, FINAL), name, typeSystem.getTemplateType().asType(), false); |
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84 |
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85 clazz.add(createConstructorUsingFields(modifiers(PROTECTED), clazz)); |
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86 CodeVariableElement singleton = createSingleton(clazz); |
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87 clazz.add(singleton); |
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88 |
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89 for (TypeData type : typeSystem.getTypes()) { |
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90 if (type.isGeneric() || type.isVoid()) { |
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91 continue; |
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92 } |
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93 clazz.addOptional(createIsTypeMethod(type)); |
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94 clazz.addOptional(createAsTypeMethod(type)); |
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95 |
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96 for (TypeData sourceType : collectExpectSourceTypes(type)) { |
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97 clazz.addOptional(createExpectTypeMethod(type, sourceType)); |
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98 } |
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99 |
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100 clazz.addOptional(createAsImplicitTypeMethod(type, true)); |
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101 clazz.addOptional(createAsImplicitTypeMethod(type, false)); |
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102 clazz.addOptional(createIsImplicitTypeMethod(type, true)); |
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103 clazz.addOptional(createIsImplicitTypeMethod(type, false)); |
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104 clazz.addOptional(createGetTypeIndex(type)); |
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105 } |
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106 |
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107 return clazz; |
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108 } |
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109 |
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110 private static List<TypeData> collectExpectSourceTypes(TypeData type) { |
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111 Set<TypeData> sourceTypes = new HashSet<>(); |
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112 sourceTypes.add(type.getTypeSystem().getGenericTypeData()); |
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113 for (TypeCastData cast : type.getTypeCasts()) { |
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114 sourceTypes.add(cast.getSourceType()); |
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115 } |
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116 for (TypeCheckData cast : type.getTypeChecks()) { |
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117 sourceTypes.add(cast.getCheckedType()); |
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118 } |
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119 return new ArrayList<>(sourceTypes); |
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120 } |
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121 |
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122 private CodeVariableElement createSingleton(CodeTypeElement clazz) { |
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123 CodeVariableElement field = new CodeVariableElement(modifiers(PUBLIC, STATIC, FINAL), clazz.asType(), singletonName(getModel())); |
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124 field.createInitBuilder().startNew(clazz.asType()).end(); |
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125 return field; |
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126 } |
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127 |
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128 private CodeExecutableElement createIsImplicitTypeMethod(TypeData type, boolean typed) { |
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129 TypeSystemData typeSystem = getModel(); |
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130 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type); |
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131 if (casts.isEmpty()) { |
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132 return null; |
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133 } |
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134 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(boolean.class), TypeSystemCodeGenerator.isImplicitTypeMethodName(type)); |
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135 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); |
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136 if (typed) { |
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137 method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "typeHint")); |
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138 } |
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139 CodeTreeBuilder builder = method.createBuilder(); |
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140 |
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141 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type); |
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142 |
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143 builder.startReturn(); |
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144 String sep = ""; |
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145 for (TypeData sourceType : sourceTypes) { |
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146 builder.string(sep); |
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147 if (typed) { |
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148 builder.string("(typeHint == ").typeLiteral(sourceType.getPrimitiveType()).string(" && "); |
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149 } |
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150 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end(); |
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151 if (typed) { |
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152 builder.string(")"); |
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153 } |
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154 if (sourceTypes.lastIndexOf(sourceType) != sourceTypes.size() - 1) { |
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155 builder.newLine(); |
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156 } |
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157 if (sep.equals("")) { |
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158 builder.startIndention(); |
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159 } |
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160 sep = " || "; |
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161 } |
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162 builder.end(); |
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163 builder.end(); |
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164 return method; |
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165 } |
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166 |
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167 private CodeExecutableElement createAsImplicitTypeMethod(TypeData type, boolean typed) { |
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168 TypeSystemData typeSystem = getModel(); |
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169 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type); |
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170 if (casts.isEmpty()) { |
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171 return null; |
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172 } |
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173 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asImplicitTypeMethodName(type)); |
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174 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); |
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175 if (typed) { |
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176 method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "typeHint")); |
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177 } |
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178 |
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179 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type); |
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180 |
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181 CodeTreeBuilder builder = method.createBuilder(); |
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182 boolean elseIf = false; |
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183 for (TypeData sourceType : sourceTypes) { |
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184 elseIf = builder.startIf(elseIf); |
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185 if (typed) { |
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186 builder.string("typeHint == ").typeLiteral(sourceType.getPrimitiveType()); |
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187 } else { |
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188 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end(); |
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189 } |
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190 |
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191 builder.end().startBlock(); |
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192 |
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193 builder.startReturn(); |
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194 ImplicitCastData cast = typeSystem.lookupCast(sourceType, type); |
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195 if (cast != null) { |
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196 builder.startCall(cast.getMethodName()); |
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197 } |
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198 builder.startCall(asTypeMethodName(sourceType)).string(LOCAL_VALUE).end(); |
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199 if (cast != null) { |
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200 builder.end(); |
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201 } |
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202 builder.end(); |
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203 builder.end(); |
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204 } |
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205 |
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206 builder.startElseBlock(); |
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207 builder.startStatement().startStaticCall(getContext().getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end(); |
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208 builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end(); |
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209 builder.end(); |
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210 return method; |
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211 } |
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212 |
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213 private CodeExecutableElement createGetTypeIndex(TypeData type) { |
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214 TypeSystemData typeSystem = getModel(); |
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215 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type); |
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216 if (casts.isEmpty()) { |
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217 return null; |
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218 } |
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219 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(Class.class), TypeSystemCodeGenerator.getImplicitClass(type)); |
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220 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); |
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221 |
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222 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type); |
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223 CodeTreeBuilder builder = method.createBuilder(); |
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224 boolean elseIf = false; |
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225 for (TypeData sourceType : sourceTypes) { |
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226 elseIf = builder.startIf(elseIf); |
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227 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end(); |
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228 builder.end().startBlock(); |
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229 builder.startReturn().typeLiteral(sourceType.getPrimitiveType()).end(); |
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230 builder.end(); |
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231 } |
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232 |
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233 builder.startElseBlock(); |
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234 builder.startStatement().startStaticCall(getContext().getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end(); |
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235 builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end(); |
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236 builder.end(); |
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237 |
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238 return method; |
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239 } |
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240 |
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241 private CodeExecutableElement createIsTypeMethod(TypeData type) { |
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242 if (!type.getTypeChecks().isEmpty()) { |
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243 return null; |
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244 } |
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245 |
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246 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(boolean.class), TypeSystemCodeGenerator.isTypeMethodName(type)); |
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247 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); |
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248 |
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249 DeclaredType suppressWarnings = (DeclaredType) getContext().getType(SuppressWarnings.class); |
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250 CodeAnnotationMirror annotationMirror = new CodeAnnotationMirror(suppressWarnings); |
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251 annotationMirror.setElementValue(annotationMirror.findExecutableElement("value"), new CodeAnnotationValue("static-method")); |
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252 method.getAnnotationMirrors().add(annotationMirror); |
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253 |
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254 CodeTreeBuilder body = method.createBuilder(); |
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255 body.startReturn().instanceOf(LOCAL_VALUE, type.getBoxedType()).end(); |
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256 |
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257 return method; |
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258 } |
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259 |
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260 private CodeExecutableElement createAsTypeMethod(TypeData type) { |
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261 if (!type.getTypeCasts().isEmpty()) { |
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262 return null; |
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263 } |
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264 |
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265 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asTypeMethodName(type)); |
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266 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE)); |
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267 |
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268 CodeTreeBuilder body = method.createBuilder(); |
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269 String assertMessage = typeName(getModel()) + "." + asTypeMethodName(type) + ": " + ElementUtils.getSimpleName(type.getBoxedType()) + " expected"; |
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270 body.startAssert().startCall(isTypeMethodName(type)).string(LOCAL_VALUE).end().string(" : ").doubleQuote(assertMessage).end(); |
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271 body.startReturn().cast(type.getPrimitiveType(), body.create().string(LOCAL_VALUE).getTree()).end(); |
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272 |
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273 return method; |
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274 } |
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275 |
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276 private CodeExecutableElement createExpectTypeMethod(TypeData expectedType, TypeData sourceType) { |
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277 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), expectedType.getPrimitiveType(), TypeSystemCodeGenerator.expectTypeMethodName(expectedType)); |
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278 method.addParameter(new CodeVariableElement(sourceType.getPrimitiveType(), LOCAL_VALUE)); |
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279 method.addThrownType(getContext().getTruffleTypes().getUnexpectedValueException()); |
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280 |
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281 CodeTreeBuilder body = method.createBuilder(); |
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282 body.startIf().startCall(TypeSystemCodeGenerator.isTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end().startBlock(); |
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283 body.startReturn().startCall(TypeSystemCodeGenerator.asTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end(); |
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284 body.end(); // if-block |
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285 body.startThrow().startNew(getContext().getTruffleTypes().getUnexpectedValueException()).string(LOCAL_VALUE).end().end(); |
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286 |
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287 return method; |
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288 } |
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289 |
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290 } |
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291 } |