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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/TypeSystemCodeGenerator.java @ 16759:23415229349b

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Truffle-DSL: new package structure.
author Christian Humer <christian.humer@gmail.com>
date Mon, 11 Aug 2014 15:57:14 +0200
parents graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/typesystem/TypeSystemCodeGenerator.java@bd28da642eea
children 0370880ac9ce
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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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30 import javax.lang.model.type.*;
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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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78 private static final String LOCAL_VALUE = "value";
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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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89 for (TypeData type : typeSystem.getTypes()) {
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90 if (!type.isGeneric()) {
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91 clazz.addOptional(createIsTypeMethod(type));
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92 clazz.addOptional(createAsTypeMethod(type));
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94 for (TypeData sourceType : collectExpectSourceTypes(type)) {
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95 clazz.addOptional(createExpectTypeMethod(type, sourceType));
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96 }
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97
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98 clazz.addOptional(createAsImplicitTypeMethod(type, true));
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99 clazz.addOptional(createAsImplicitTypeMethod(type, false));
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100 clazz.addOptional(createIsImplicitTypeMethod(type, true));
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101 clazz.addOptional(createIsImplicitTypeMethod(type, false));
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102 clazz.addOptional(createGetTypeIndex(type));
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103 }
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104 }
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106 return clazz;
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107 }
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109 private static List<TypeData> collectExpectSourceTypes(TypeData type) {
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110 Set<TypeData> sourceTypes = new HashSet<>();
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111 sourceTypes.add(type.getTypeSystem().getGenericTypeData());
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112 for (TypeCastData cast : type.getTypeCasts()) {
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113 sourceTypes.add(cast.getSourceType());
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114 }
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115 for (TypeCheckData cast : type.getTypeChecks()) {
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116 sourceTypes.add(cast.getCheckedType());
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117 }
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118 return new ArrayList<>(sourceTypes);
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119 }
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120
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121 private CodeVariableElement createSingleton(CodeTypeElement clazz) {
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122 CodeVariableElement field = new CodeVariableElement(modifiers(PUBLIC, STATIC, FINAL), clazz.asType(), singletonName(getModel()));
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123 field.createInitBuilder().startNew(clazz.asType()).end();
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124 return field;
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125 }
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126
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127 private CodeExecutableElement createIsImplicitTypeMethod(TypeData type, boolean typed) {
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128 TypeSystemData typeSystem = getModel();
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129 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
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130 if (casts.isEmpty()) {
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131 return null;
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132 }
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133 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(boolean.class), TypeSystemCodeGenerator.isImplicitTypeMethodName(type));
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134 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
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135 if (typed) {
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136 method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "typeHint"));
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137 }
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138 CodeTreeBuilder builder = method.createBuilder();
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139
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140 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
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141
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142 builder.startReturn();
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143 String sep = "";
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144 for (TypeData sourceType : sourceTypes) {
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145 builder.string(sep);
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146 if (typed) {
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147 builder.string("(typeHint == ").typeLiteral(sourceType.getPrimitiveType()).string(" && ");
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148 }
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149 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
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150 if (typed) {
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151 builder.string(")");
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152 }
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153 if (sourceTypes.lastIndexOf(sourceType) != sourceTypes.size() - 1) {
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154 builder.newLine();
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155 }
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156 if (sep.equals("")) {
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157 builder.startIndention();
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158 }
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159 sep = " || ";
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160 }
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161 builder.end();
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162 builder.end();
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163 return method;
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164 }
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165
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166 private CodeExecutableElement createAsImplicitTypeMethod(TypeData type, boolean typed) {
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167 TypeSystemData typeSystem = getModel();
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168 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
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169 if (casts.isEmpty()) {
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170 return null;
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171 }
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172 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asImplicitTypeMethodName(type));
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173 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
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174 if (typed) {
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175 method.addParameter(new CodeVariableElement(getContext().getType(Class.class), "typeHint"));
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176 }
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177
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178 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
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179
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180 CodeTreeBuilder builder = method.createBuilder();
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181 boolean elseIf = false;
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182 for (TypeData sourceType : sourceTypes) {
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183 elseIf = builder.startIf(elseIf);
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184 if (typed) {
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185 builder.string("typeHint == ").typeLiteral(sourceType.getPrimitiveType());
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186 } else {
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187 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
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188 }
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189
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190 builder.end().startBlock();
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191
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192 builder.startReturn();
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193 ImplicitCastData cast = typeSystem.lookupCast(sourceType, type);
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194 if (cast != null) {
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195 builder.startCall(cast.getMethodName());
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196 }
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197 builder.startCall(asTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
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198 if (cast != null) {
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199 builder.end();
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200 }
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201 builder.end();
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202 builder.end();
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203 }
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204
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205 builder.startElseBlock();
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206 builder.startStatement().startStaticCall(getContext().getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end();
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207 builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end();
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208 builder.end();
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209 return method;
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210 }
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211
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212 private CodeExecutableElement createGetTypeIndex(TypeData type) {
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213 TypeSystemData typeSystem = getModel();
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214 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
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215 if (casts.isEmpty()) {
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216 return null;
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217 }
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218 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(Class.class), TypeSystemCodeGenerator.getImplicitClass(type));
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219 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
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220
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221 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
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222 CodeTreeBuilder builder = method.createBuilder();
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223 boolean elseIf = false;
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224 for (TypeData sourceType : sourceTypes) {
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225 elseIf = builder.startIf(elseIf);
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226 builder.startCall(isTypeMethodName(sourceType)).string(LOCAL_VALUE).end();
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227 builder.end().startBlock();
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228 builder.startReturn().typeLiteral(sourceType.getPrimitiveType()).end();
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229 builder.end();
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230 }
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231
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232 builder.startElseBlock();
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233 builder.startStatement().startStaticCall(getContext().getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end();
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234 builder.startThrow().startNew(getContext().getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end();
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235 builder.end();
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236
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237 return method;
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238 }
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239
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240 private CodeExecutableElement createIsTypeMethod(TypeData type) {
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241 if (!type.getTypeChecks().isEmpty()) {
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242 return null;
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243 }
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244
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245 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), getContext().getType(boolean.class), TypeSystemCodeGenerator.isTypeMethodName(type));
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246 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
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247
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248 DeclaredType suppressWarnings = (DeclaredType) getContext().getType(SuppressWarnings.class);
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249 CodeAnnotationMirror annotationMirror = new CodeAnnotationMirror(suppressWarnings);
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250 annotationMirror.setElementValue(annotationMirror.findExecutableElement("value"), new CodeAnnotationValue("static-method"));
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251 method.getAnnotationMirrors().add(annotationMirror);
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252
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253 CodeTreeBuilder body = method.createBuilder();
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254 body.startReturn().instanceOf(LOCAL_VALUE, type.getBoxedType()).end();
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255
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256 return method;
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257 }
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258
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259 private CodeExecutableElement createAsTypeMethod(TypeData type) {
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260 if (!type.getTypeCasts().isEmpty()) {
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261 return null;
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262 }
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263
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264 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asTypeMethodName(type));
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265 method.addParameter(new CodeVariableElement(getContext().getType(Object.class), LOCAL_VALUE));
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266
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267 CodeTreeBuilder body = method.createBuilder();
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268 String assertMessage = typeName(getModel()) + "." + asTypeMethodName(type) + ": " + ElementUtils.getSimpleName(type.getBoxedType()) + " expected";
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269 body.startAssert().startCall(isTypeMethodName(type)).string(LOCAL_VALUE).end().string(" : ").doubleQuote(assertMessage).end();
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270 body.startReturn().cast(type.getPrimitiveType(), body.create().string(LOCAL_VALUE).getTree()).end();
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271
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272 return method;
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273 }
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274
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275 private CodeExecutableElement createExpectTypeMethod(TypeData expectedType, TypeData sourceType) {
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276 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC), expectedType.getPrimitiveType(), TypeSystemCodeGenerator.expectTypeMethodName(expectedType));
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277 method.addParameter(new CodeVariableElement(sourceType.getPrimitiveType(), LOCAL_VALUE));
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278 method.addThrownType(getContext().getTruffleTypes().getUnexpectedValueException());
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279
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280 CodeTreeBuilder body = method.createBuilder();
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281 body.startIf().startCall(TypeSystemCodeGenerator.isTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end().startBlock();
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282 body.startReturn().startCall(TypeSystemCodeGenerator.asTypeMethodName(expectedType)).string(LOCAL_VALUE).end().end();
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283 body.end(); // if-block
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284 body.startThrow().startNew(getContext().getTruffleTypes().getUnexpectedValueException()).string(LOCAL_VALUE).end().end();
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285
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286 return method;
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287 }
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288
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289 }
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290 }