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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/generator/TypeSystemCodeGenerator.java @ 18758:3912400fc33a

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Truffle-DSL: remove type system singleton
author Christian Humer <christian.humer@gmail.com>
date Mon, 29 Dec 2014 23:38:42 +0100
parents f6b8787dc113
children a665483c3881
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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.*;
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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 CodeTree cast(TypeData type, String content) {
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40 return cast(type, CodeTreeBuilder.singleString(content));
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41 }
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42
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43 public static CodeTree implicitType(TypeData type, String valueName) {
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44 if (type.isGeneric()) {
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45 return CodeTreeBuilder.singleString(valueName);
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46 }
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47 CodeTreeBuilder builder = CodeTreeBuilder.createBuilder();
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48 TypeSystemData typeSystem = type.getTypeSystem();
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49 builder.startStaticCall(createTypeSystemGen(typeSystem), getImplicitClass(type)).string(valueName);
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50 builder.end();
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51 return builder.getRoot();
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52 }
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53
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54 public static CodeTree invokeImplicitCast(ImplicitCastData cast, CodeTree expression) {
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55 CodeTreeBuilder builder = CodeTreeBuilder.createBuilder();
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56 TypeSystemData typeSystem = cast.getTargetType().getTypeSystem();
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57 builder.startStaticCall(createTypeSystemGen(typeSystem), cast.getMethodName()).tree(expression);
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58 builder.end();
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59 return builder.getRoot();
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60 }
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61
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62 public static CodeTree implicitCheck(TypeData type, String valueName, String typeHint) {
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63 if (type.isGeneric()) {
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64 return CodeTreeBuilder.singleString(valueName);
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65 }
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66 CodeTreeBuilder builder = CodeTreeBuilder.createBuilder();
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67 TypeSystemData typeSystem = type.getTypeSystem();
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68 builder.startStaticCall(createTypeSystemGen(typeSystem), isImplicitTypeMethodName(type)).string(valueName);
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69 if (typeHint != null) {
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70 builder.string(typeHint);
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71 }
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72 builder.end();
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73 return builder.getRoot();
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74 }
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75
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76 public static CodeTree implicitCast(TypeData type, String valueName, String typeHint) {
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77 if (type.isGeneric()) {
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78 return CodeTreeBuilder.singleString(valueName);
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79 }
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80 CodeTreeBuilder builder = CodeTreeBuilder.createBuilder();
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81 TypeSystemData typeSystem = type.getTypeSystem();
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82 builder.startStaticCall(createTypeSystemGen(typeSystem), asImplicitTypeMethodName(type)).string(valueName);
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83 if (typeHint != null) {
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84 builder.string(typeHint);
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85 }
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86 builder.end();
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87 return builder.getRoot();
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88 }
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89
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90 public static CodeTree cast(TypeData type, CodeTree content) {
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91 if (type.isGeneric()) {
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92 return content;
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93 }
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94 CodeTreeBuilder builder = CodeTreeBuilder.createBuilder();
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95 TypeSystemData typeSystem = type.getTypeSystem();
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96
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97 if (type.isDefaultCast()) {
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98 builder.cast(type.getPrimitiveType(), content);
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99 } else {
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100 builder.startStaticCall(typeSystem.getTemplateType().asType(), type.getTypeCasts().get(0).getMethodName()).tree(content).end();
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101 }
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102 return builder.getRoot();
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103 }
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104
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105 public static CodeTree expect(TypeData type, CodeTree content) {
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106 if (type.isGeneric()) {
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107 return content;
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108 }
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109 CodeTreeBuilder builder = CodeTreeBuilder.createBuilder();
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110 TypeSystemData typeSystem = type.getTypeSystem();
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111 builder.startStaticCall(createTypeSystemGen(typeSystem), expectTypeMethodName(type)).tree(content).end();
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112 return builder.getRoot();
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113 }
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114
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115 private static CodeTypeMirror createTypeSystemGen(TypeSystemData typeSystem) {
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116 return new GeneratedTypeMirror(ElementUtils.getPackageName(typeSystem.getTemplateType()), typeName(typeSystem));
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117 }
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118
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119 public static CodeTree check(TypeData type, String content) {
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120 return check(type, CodeTreeBuilder.singleString(content));
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121 }
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122
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123 public static CodeTree check(TypeData type, CodeTree content) {
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124 if (type.isGeneric()) {
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125 return content;
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126 }
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127 CodeTreeBuilder builder = CodeTreeBuilder.createBuilder();
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128 TypeSystemData typeSystem = type.getTypeSystem();
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129
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130 if (type.isDefaultCheck()) {
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131 builder.instanceOf(content, type.getBoxedType());
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132 } else {
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133 builder.startStaticCall(typeSystem.getTemplateType().asType(), type.getTypeChecks().get(0).getMethodName()).tree(content).end();
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134 }
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135 return builder.getRoot();
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136 }
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137
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138 public static String isTypeMethodName(TypeData type) {
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139 return "is" + ElementUtils.getTypeId(type.getBoxedType());
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140 }
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141
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142 static String isImplicitTypeMethodName(TypeData type) {
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143 return "isImplicit" + ElementUtils.getTypeId(type.getBoxedType());
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144 }
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145
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146 public static String asTypeMethodName(TypeData type) {
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147 return "as" + ElementUtils.getTypeId(type.getBoxedType());
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148 }
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149
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150 static String asImplicitTypeMethodName(TypeData type) {
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151 return "asImplicit" + ElementUtils.getTypeId(type.getBoxedType());
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152 }
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153
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154 static String getImplicitClass(TypeData type) {
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155 return "getImplicit" + ElementUtils.getTypeId(type.getBoxedType()) + "Class";
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156 }
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157
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158 public static String expectTypeMethodName(TypeData type) {
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159 return "expect" + ElementUtils.getTypeId(type.getBoxedType());
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160 }
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161
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162 static String typeName(TypeSystemData typeSystem) {
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163 String name = getSimpleName(typeSystem.getTemplateType());
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164 return name + "Gen";
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165 }
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166
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167 static String singletonName(TypeSystemData type) {
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168 return createConstantName(getSimpleName(type.getTemplateType().asType()));
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169 }
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170
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171 @Override
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172 public CodeTypeElement create(ProcessorContext context, TypeSystemData typeSystem) {
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173 return new TypeClassFactory(context, typeSystem).create();
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174 }
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175
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176 private static class TypeClassFactory {
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177
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178 private static final String LOCAL_VALUE = "value";
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179
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180 private final ProcessorContext context;
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181 private final TypeSystemData typeSystem;
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182
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183 public TypeClassFactory(ProcessorContext context, TypeSystemData typeSystem) {
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184 this.context = context;
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185 this.typeSystem = typeSystem;
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186 }
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187
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188 public CodeTypeElement create() {
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189 String name = typeName(typeSystem);
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190 CodeTypeElement clazz = GeneratorUtils.createClass(typeSystem, modifiers(PUBLIC, FINAL), name, typeSystem.getTemplateType().asType(), false);
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191
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192 clazz.add(GeneratorUtils.createConstructorUsingFields(context, modifiers(PROTECTED), clazz));
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193 CodeVariableElement singleton = createSingleton(clazz);
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194 clazz.add(singleton);
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195
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196 for (TypeData type : typeSystem.getTypes()) {
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197 if (type.isGeneric() || type.isVoid()) {
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198 continue;
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199 }
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200 clazz.addOptional(createIsTypeMethod(type));
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201 clazz.addOptional(createAsTypeMethod(type));
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202
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203 for (TypeData sourceType : collectExpectSourceTypes(type)) {
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204 clazz.addOptional(createExpectTypeMethod(type, sourceType));
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205 }
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206
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207 clazz.addOptional(createAsImplicitTypeMethod(type, true));
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208 clazz.addOptional(createAsImplicitTypeMethod(type, false));
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209 clazz.addOptional(createIsImplicitTypeMethod(type, true));
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210 clazz.addOptional(createIsImplicitTypeMethod(type, false));
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211 clazz.addOptional(createGetTypeIndex(type));
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212 }
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213
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214 return clazz;
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215 }
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216
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217 private static List<TypeData> collectExpectSourceTypes(TypeData type) {
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218 Set<TypeData> sourceTypes = new HashSet<>();
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219 sourceTypes.add(type.getTypeSystem().getGenericTypeData());
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220 for (TypeCastData cast : type.getTypeCasts()) {
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221 sourceTypes.add(cast.getSourceType());
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222 }
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223 for (TypeCheckData cast : type.getTypeChecks()) {
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224 sourceTypes.add(cast.getCheckedType());
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225 }
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226 sourceTypes.remove(type);
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227 return new ArrayList<>(sourceTypes);
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228 }
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229
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230 private CodeVariableElement createSingleton(CodeTypeElement clazz) {
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231 CodeVariableElement field = new CodeVariableElement(modifiers(PUBLIC, STATIC, FINAL), clazz.asType(), singletonName(typeSystem));
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232 field.createInitBuilder().startNew(clazz.asType()).end();
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233
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234 CodeAnnotationMirror annotationMirror = new CodeAnnotationMirror((DeclaredType) context.getType(Deprecated.class));
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235 field.getAnnotationMirrors().add(annotationMirror);
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236
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237 return field;
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238 }
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239
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240 private CodeExecutableElement createIsImplicitTypeMethod(TypeData type, boolean typed) {
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241 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
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242 if (casts.isEmpty()) {
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243 return null;
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244 }
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245 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, STATIC), context.getType(boolean.class), TypeSystemCodeGenerator.isImplicitTypeMethodName(type));
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246 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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247 if (typed) {
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248 method.addParameter(new CodeVariableElement(context.getType(Class.class), "typeHint"));
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249 }
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250 CodeTreeBuilder builder = method.createBuilder();
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251
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252 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
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253
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254 builder.startReturn();
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255 String sep = "";
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256 for (TypeData sourceType : sourceTypes) {
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257 builder.string(sep);
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258 if (typed) {
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259 builder.string("(typeHint == ").typeLiteral(sourceType.getPrimitiveType()).string(" && ");
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260 }
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261 builder.tree(check(sourceType, LOCAL_VALUE));
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262 if (typed) {
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263 builder.string(")");
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264 }
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265 if (sourceTypes.lastIndexOf(sourceType) != sourceTypes.size() - 1) {
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266 builder.newLine();
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267 }
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268 if (sep.equals("")) {
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269 builder.startIndention();
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270 }
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271 sep = " || ";
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272 }
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273 builder.end();
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274 builder.end();
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275 return method;
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276 }
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277
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278 private CodeExecutableElement createAsImplicitTypeMethod(TypeData type, boolean typed) {
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279 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
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280 if (casts.isEmpty()) {
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281 return null;
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282 }
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283 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, STATIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asImplicitTypeMethodName(type));
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284 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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285 if (typed) {
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286 method.addParameter(new CodeVariableElement(context.getType(Class.class), "typeHint"));
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287 }
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288
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289 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
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290
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291 CodeTreeBuilder builder = method.createBuilder();
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292 boolean elseIf = false;
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293 for (TypeData sourceType : sourceTypes) {
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294 elseIf = builder.startIf(elseIf);
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295 if (typed) {
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296 builder.string("typeHint == ").typeLiteral(sourceType.getPrimitiveType());
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297 } else {
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298 builder.tree(check(sourceType, LOCAL_VALUE));
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299 }
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300
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301 builder.end().startBlock();
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302
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303 builder.startReturn();
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304 ImplicitCastData cast = typeSystem.lookupCast(sourceType, type);
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305 if (cast != null) {
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306 builder.startCall(cast.getMethodName());
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307 }
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308 builder.tree(cast(sourceType, LOCAL_VALUE)).end();
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309 if (cast != null) {
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310 builder.end();
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311 }
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312 builder.end();
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313 builder.end();
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314 }
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315
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316 builder.startElseBlock();
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317 builder.startStatement().startStaticCall(context.getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end();
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318 builder.startThrow().startNew(context.getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end();
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319 builder.end();
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320 return method;
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321 }
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322
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323 private CodeExecutableElement createGetTypeIndex(TypeData type) {
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324 List<ImplicitCastData> casts = typeSystem.lookupByTargetType(type);
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325 if (casts.isEmpty()) {
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326 return null;
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327 }
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328 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, STATIC), context.getType(Class.class), TypeSystemCodeGenerator.getImplicitClass(type));
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329 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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330
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331 List<TypeData> sourceTypes = typeSystem.lookupSourceTypes(type);
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332 CodeTreeBuilder builder = method.createBuilder();
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333 boolean elseIf = false;
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334 for (TypeData sourceType : sourceTypes) {
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335 elseIf = builder.startIf(elseIf);
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336 builder.tree(check(sourceType, LOCAL_VALUE)).end();
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337 builder.end().startBlock();
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338 builder.startReturn().typeLiteral(sourceType.getPrimitiveType()).end();
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339 builder.end();
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340 }
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341
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342 builder.startElseBlock();
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343 builder.startStatement().startStaticCall(context.getTruffleTypes().getCompilerDirectives(), "transferToInterpreterAndInvalidate").end().end();
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344 builder.startThrow().startNew(context.getType(IllegalArgumentException.class)).doubleQuote("Illegal type ").end().end();
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345 builder.end();
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346
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347 return method;
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348 }
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349
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350 private CodeExecutableElement createIsTypeMethod(TypeData type) {
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351 if (!type.getTypeChecks().isEmpty()) {
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352 return null;
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353 }
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diff changeset
354
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355 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, STATIC), context.getType(boolean.class), TypeSystemCodeGenerator.isTypeMethodName(type));
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356 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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357
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358 CodeTreeBuilder body = method.createBuilder();
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359 body.startReturn().tree(check(type, LOCAL_VALUE)).end();
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360
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diff changeset
361 return method;
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362 }
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363
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364 private CodeExecutableElement createAsTypeMethod(TypeData type) {
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365 if (!type.getTypeCasts().isEmpty()) {
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366 return null;
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367 }
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diff changeset
368
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369 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, STATIC), type.getPrimitiveType(), TypeSystemCodeGenerator.asTypeMethodName(type));
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370 method.addParameter(new CodeVariableElement(context.getType(Object.class), LOCAL_VALUE));
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371
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372 CodeTreeBuilder body = method.createBuilder();
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373 String assertMessage = typeName(typeSystem) + "." + asTypeMethodName(type) + ": " + ElementUtils.getSimpleName(type.getBoxedType()) + " expected";
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374 body.startAssert().tree(check(type, LOCAL_VALUE)).string(" : ").doubleQuote(assertMessage).end();
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375 body.startReturn().tree(cast(type, LOCAL_VALUE)).end();
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377 return method;
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378 }
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380 private CodeExecutableElement createExpectTypeMethod(TypeData expectedType, TypeData sourceType) {
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381 CodeExecutableElement method = new CodeExecutableElement(modifiers(PUBLIC, STATIC), expectedType.getPrimitiveType(), TypeSystemCodeGenerator.expectTypeMethodName(expectedType));
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382 method.addParameter(new CodeVariableElement(sourceType.getPrimitiveType(), LOCAL_VALUE));
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383 method.addThrownType(context.getTruffleTypes().getUnexpectedValueException());
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385 CodeTreeBuilder body = method.createBuilder();
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386 body.startIf().tree(check(expectedType, LOCAL_VALUE)).end().startBlock();
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387 body.startReturn().tree(cast(expectedType, LOCAL_VALUE)).end().end();
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388 body.end(); // if-block
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389 body.startThrow().startNew(context.getTruffleTypes().getUnexpectedValueException()).string(LOCAL_VALUE).end().end();
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391 return method;
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392 }
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394 }
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395
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396 }