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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/TypeSystemCodeGenerator.java @ 18753:f6b8787dc113

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Truffle-DSL: replace complex factory system with a much simpler version
author Christian Humer <christian.humer@gmail.com>
date Mon, 29 Dec 2014 23:38:21 +0100
parents 1acaa69ff61b
children 3912400fc33a
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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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32 import com.oracle.truffle.dsl.processor.*;
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33 import com.oracle.truffle.dsl.processor.java.*;
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34 import com.oracle.truffle.dsl.processor.java.model.*;
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35 import com.oracle.truffle.dsl.processor.model.*;
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36
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37 public class TypeSystemCodeGenerator extends CodeTypeElementFactory<TypeSystemData> {
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38
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39 public static String isTypeMethodName(TypeData type) {
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40 return "is" + ElementUtils.getTypeId(type.getBoxedType());
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41 }
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42
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43 static String isImplicitTypeMethodName(TypeData type) {
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44 return "isImplicit" + ElementUtils.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" + ElementUtils.getTypeId(type.getBoxedType());
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49 }
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50
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51 static String asImplicitTypeMethodName(TypeData type) {
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52 return "asImplicit" + ElementUtils.getTypeId(type.getBoxedType());
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53 }
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54
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55 static String getImplicitClass(TypeData type) {
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56 return "getImplicit" + ElementUtils.getTypeId(type.getBoxedType()) + "Class";
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57 }
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58
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59 public static String expectTypeMethodName(TypeData type) {
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60 return "expect" + ElementUtils.getTypeId(type.getBoxedType());
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61 }
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62
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63 static String typeName(TypeSystemData typeSystem) {
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64 String name = getSimpleName(typeSystem.getTemplateType());
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65 return name + "Gen";
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66 }
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67
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68 static String singletonName(TypeSystemData type) {
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69 return createConstantName(getSimpleName(type.getTemplateType().asType()));
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70 }
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71
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72 @Override
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73 public CodeTypeElement create(ProcessorContext context, TypeSystemData typeSystem) {
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74 return new TypeClassFactory(context, typeSystem).create();
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75 }
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76
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77 private static class TypeClassFactory {
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78
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79 private static final String LOCAL_VALUE = "value";
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80
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81 private final ProcessorContext context;
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82 private final TypeSystemData typeSystem;
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83
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84 public TypeClassFactory(ProcessorContext context, TypeSystemData typeSystem) {
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85 this.context = context;
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86 this.typeSystem = typeSystem;
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87 }
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88
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89 public CodeTypeElement create() {
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90 String name = typeName(typeSystem);
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91 CodeTypeElement clazz = GeneratorUtils.createClass(typeSystem, modifiers(PUBLIC, FINAL), name, typeSystem.getTemplateType().asType(), false);
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92
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93 clazz.add(GeneratorUtils.createConstructorUsingFields(context, modifiers(PROTECTED), clazz));
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94 CodeVariableElement singleton = createSingleton(clazz);
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95 clazz.add(singleton);
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96
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97 for (TypeData type : typeSystem.getTypes()) {
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98 if (type.isGeneric() || type.isVoid()) {
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99 continue;
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100 }
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101 clazz.addOptional(createIsTypeMethod(type));
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102 clazz.addOptional(createAsTypeMethod(type));
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103
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104 for (TypeData sourceType : collectExpectSourceTypes(type)) {
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105 clazz.addOptional(createExpectTypeMethod(type, sourceType));
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106 }
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107
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108 clazz.addOptional(createAsImplicitTypeMethod(type, true));
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109 clazz.addOptional(createAsImplicitTypeMethod(type, false));
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110 clazz.addOptional(createIsImplicitTypeMethod(type, true));
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111 clazz.addOptional(createIsImplicitTypeMethod(type, false));
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112 clazz.addOptional(createGetTypeIndex(type));
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113 }
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114
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115 return clazz;
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116 }
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117
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118 private static List<TypeData> collectExpectSourceTypes(TypeData type) {
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119 Set<TypeData> sourceTypes = new HashSet<>();
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120 sourceTypes.add(type.getTypeSystem().getGenericTypeData());
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121 for (TypeCastData cast : type.getTypeCasts()) {
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122 sourceTypes.add(cast.getSourceType());
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123 }
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124 for (TypeCheckData cast : type.getTypeChecks()) {
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125 sourceTypes.add(cast.getCheckedType());
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126 }
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127 return new ArrayList<>(sourceTypes);
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128 }
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129
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130 private CodeVariableElement createSingleton(CodeTypeElement clazz) {
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131 CodeVariableElement field = new CodeVariableElement(modifiers(PUBLIC, STATIC, FINAL), clazz.asType(), singletonName(typeSystem));
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132 field.createInitBuilder().startNew(clazz.asType()).end();
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133 return field;
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134 }
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135
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136 private CodeExecutableElement createIsImplicitTypeMethod(TypeData type, boolean typed) {
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137 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
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138 if (casts.isEmpty()) {
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139 return null;
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140 }
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141 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), context.getType(boolean.class), TypeSystemCodeGenerator.isImplicitTypeMethodName(type));
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142 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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143 if (typed) {
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144 method.addParameter(new CodeVariableElement(context.getType(Class.class), "typeHint"));
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145 }
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146 CodeTreeBuilder builder = method.createBuilder();
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147
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148 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
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149
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150 builder.startReturn();
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151 String sep = "";
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152 for (TypeData sourceType : sourceTypes) {
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153 builder.string(sep);
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154 if (typed) {
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155 builder.string("(typeHint == ").typeLiteral(sourceType.getPrimitiveType()).string(" && ");
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156 }
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157 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
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158 if (typed) {
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159 builder.string(")");
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160 }
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161 if (sourceTypes.lastIndexOf(sourceType) != sourceTypes.size() - 1) {
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162 builder.newLine();
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163 }
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164 if (sep.equals("")) {
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165 builder.startIndention();
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166 }
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167 sep = " || ";
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168 }
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169 builder.end();
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170 builder.end();
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171 return method;
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172 }
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173
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174 private CodeExecutableElement createAsImplicitTypeMethod(TypeData type, boolean typed) {
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175 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
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176 if (casts.isEmpty()) {
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177 return null;
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178 }
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179 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asImplicitTypeMethodName(type));
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180 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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181 if (typed) {
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182 method.addParameter(new CodeVariableElement(context.getType(Class.class), "typeHint"));
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183 }
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184
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185 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
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186
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187 CodeTreeBuilder builder = method.createBuilder();
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188 boolean elseIf = false;
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189 for (TypeData sourceType : sourceTypes) {
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190 elseIf = builder.startIf(elseIf);
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191 if (typed) {
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192 builder.string("typeHint == ").typeLiteral(sourceType.getPrimitiveType());
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193 } else {
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194 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
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195 }
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196
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197 builder.end().startBlock();
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198
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199 builder.startReturn();
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200 ImplicitCastData cast = typeSystem.lookupCast(sourceType, type);
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201 if (cast != null) {
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202 builder.startCall(cast.getMethodName());
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203 }
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204 builder.startCall(asTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
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205 if (cast != null) {
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206 builder.end();
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207 }
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208 builder.end();
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209 builder.end();
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210 }
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211
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212 builder.startElseBlock();
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213 builder.startStatement().startStaticCall(context.getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end();
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214 builder.startThrow().startNew(context.getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end();
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215 builder.end();
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216 return method;
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217 }
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218
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219 private CodeExecutableElement createGetTypeIndex(TypeData type) {
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220 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
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221 if (casts.isEmpty()) {
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222 return null;
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223 }
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224 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), context.getType(Class.class), TypeSystemCodeGenerator.getImplicitClass(type));
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225 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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226
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227 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
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228 CodeTreeBuilder builder = method.createBuilder();
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229 boolean elseIf = false;
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230 for (TypeData sourceType : sourceTypes) {
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231 elseIf = builder.startIf(elseIf);
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232 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
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233 builder.end().startBlock();
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234 builder.startReturn().typeLiteral(sourceType.getPrimitiveType()).end();
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235 builder.end();
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236 }
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237
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238 builder.startElseBlock();
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239 builder.startStatement().startStaticCall(context.getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end();
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240 builder.startThrow().startNew(context.getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end();
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241 builder.end();
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242
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243 return method;
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244 }
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245
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246 private CodeExecutableElement createIsTypeMethod(TypeData type) {
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247 if (!type.getTypeChecks().isEmpty()) {
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248 return null;
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249 }
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250
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251 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), context.getType(boolean.class), TypeSystemCodeGenerator.isTypeMethodName(type));
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252 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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253
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254 DeclaredType suppressWarnings = (DeclaredType) context.getType(SuppressWarnings.class);
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255 CodeAnnotationMirror annotationMirror = new CodeAnnotationMirror(suppressWarnings);
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256 annotationMirror.setElementValue(annotationMirror.findExecutableElement("value"), new CodeAnnotationValue("static-method"));
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257 method.getAnnotationMirrors().add(annotationMirror);
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258
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259 CodeTreeBuilder body = method.createBuilder();
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260 body.startReturn().instanceOf(LOCAL_VALUE, type.getBoxedType()).end();
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261
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262 return method;
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263 }
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264
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265 private CodeExecutableElement createAsTypeMethod(TypeData type) {
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266 if (!type.getTypeCasts().isEmpty()) {
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267 return null;
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268 }
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269
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270 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asTypeMethodName(type));
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271 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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272
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273 CodeTreeBuilder body = method.createBuilder();
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274 String assertMessage = typeName(typeSystem) + "." + asTypeMethodName(type) + ": " + ElementUtils.getSimpleName(type.getBoxedType()) + " expected";
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275 body.startAssert().startCall(isTypeMethodName(type)).string(LOCAL_VALUE).end().string(" : ").doubleQuote(assertMessage).end();
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276 body.startReturn().cast(type.getPrimitiveType(), body.create().string(LOCAL_VALUE).getTree()).end();
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277
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278 return method;
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279 }
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280
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281 private CodeExecutableElement createExpectTypeMethod(TypeData expectedType, TypeData sourceType) {
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282 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), expectedType.getPrimitiveType(), TypeSystemCodeGenerator.expectTypeMethodName(expectedType));
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283 method.addParameter(new CodeVariableElement(sourceType.getPrimitiveType(), LOCAL_VALUE));
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284 method.addThrownType(context.getTruffleTypes().getUnexpectedValueException());
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285
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286 CodeTreeBuilder body = method.createBuilder();
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287 body.startIf().startCall(TypeSystemCodeGenerator.isTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end().startBlock();
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288 body.startReturn().startCall(TypeSystemCodeGenerator.asTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end();
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289 body.end(); // if-block
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290 body.startThrow().startNew(context.getTruffleTypes().getUnexpectedValueException()).string(LOCAL_VALUE).end().end();
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291
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292 return method;
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293 }
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294
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295 }
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296 }