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252
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1 // RUN: rm -rf %t
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2 // RUN: split-file %s %t
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3
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4 // Build first header file
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5 // RUN: echo "#define FIRST" >> %t/include/first.h
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6 // RUN: cat %t/test.c >> %t/include/first.h
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7 // RUN: echo "#undef FIRST" >> %t/include/first.h
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8
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9 // Build second header file
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10 // RUN: echo "#define SECOND" >> %t/include/second.h
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11 // RUN: cat %t/test.c >> %t/include/second.h
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12 // RUN: echo "#undef SECOND" >> %t/include/second.h
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13
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14 // Test that each header can compile
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15 // RUN: %clang_cc1 -fsyntax-only -x objective-c %t/include/first.h -fblocks -fobjc-arc
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16 // RUN: %clang_cc1 -fsyntax-only -x objective-c %t/include/second.h -fblocks -fobjc-arc
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17
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18 // Run test
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19 // RUN: %clang_cc1 -I%t/include -verify %t/test.c -fblocks -fobjc-arc \
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20 // RUN: -fmodules -fimplicit-module-maps -fmodules-cache-path=%t/modules.cache
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21
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22 // Run tests for nested structs
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23 // DEFINE: %{filename} = test-nested-struct.c
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24 // DEFINE: %{macro_flag} = -DCASE1=1
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25 // DEFINE: %{command} = %clang_cc1 -I%t/include -verify %t/%{filename} -fblocks -fobjc-arc \
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26 // DEFINE: -fmodules -fimplicit-module-maps -fmodules-cache-path=%t/modules.cache \
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27 // DEFINE: %{macro_flag} -emit-llvm -o %t/%{filename}.bc
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28 // RUN: %{command}
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29 // REDEFINE: %{macro_flag} = -DCASE2=1
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30 // RUN: %{command}
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31 // REDEFINE: %{macro_flag} = -DCASE3=1
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32 // RUN: %{command}
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33
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34 // Run tests for anonymous nested structs and unions
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35 // REDEFINE: %{filename} = test-anonymous.c
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36 // REDEFINE: %{macro_flag} = -DCASE1=1
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37 // RUN: %{command}
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38 // REDEFINE: %{macro_flag} = -DCASE2=1
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39 // RUN: %{command}
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40 // REDEFINE: %{macro_flag} = -DCASE3=1
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41 // RUN: %{command}
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42
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43 // Test that we don't accept different structs and unions with the same name
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44 // from multiple modules but detect mismatches and provide actionable
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45 // diagnostic.
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46
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47 //--- include/first-empty.h
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48 //--- include/module.modulemap
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49 module First {
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50 module Empty {
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51 header "first-empty.h"
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52 }
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53 module Hidden {
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54 header "first.h"
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55 header "first-nested-struct.h"
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56 header "first-anonymous.h"
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57 export *
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58 }
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59 }
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60 module Second {
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61 header "second.h"
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62 header "second-nested-struct.h"
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63 header "second-anonymous.h"
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64 export *
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65 }
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66
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67 //--- test.c
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68 #if !defined(FIRST) && !defined(SECOND)
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69 # include "first-empty.h"
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70 # include "second.h"
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71 #endif
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72
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73 #if defined(FIRST)
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74 struct CompareForwardDeclaration1;
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75 struct CompareForwardDeclaration2 {};
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76 #elif defined(SECOND)
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77 struct CompareForwardDeclaration1 {};
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78 struct CompareForwardDeclaration2;
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79 #else
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80 struct CompareForwardDeclaration1 *compareForwardDeclaration1;
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81 struct CompareForwardDeclaration2 *compareForwardDeclaration2;
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82 #endif
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83
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84 #if defined(FIRST)
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85 struct CompareMatchingFields {
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86 int matchingFieldName;
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87 };
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88
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89 struct CompareFieldPresence1 {
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90 int fieldPresence1;
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91 };
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92 struct CompareFieldPresence2 {};
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93
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94 struct CompareFieldName {
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95 int fieldNameA;
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96 };
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97
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98 struct CompareFieldOrder {
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99 int fieldOrderX;
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100 int fieldOrderY;
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101 };
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102 #elif defined(SECOND)
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103 struct CompareMatchingFields {
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104 int matchingFieldName;
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105 };
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106
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107 struct CompareFieldPresence1 {
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108 };
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109 struct CompareFieldPresence2 {
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110 int fieldPresence2;
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111 };
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112
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113 struct CompareFieldName {
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114 int fieldNameB;
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115 };
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116
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117 struct CompareFieldOrder {
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118 int fieldOrderY;
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119 int fieldOrderX;
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120 };
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121 #else
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122 struct CompareMatchingFields compareMatchingFields;
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123 struct CompareFieldPresence1 compareFieldPresence1;
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124 // expected-error@first.h:* {{'CompareFieldPresence1' has different definitions in different modules; first difference is definition in module 'First.Hidden' found field}}
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125 // expected-note@second.h:* {{but in 'Second' found end of class}}
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126 struct CompareFieldPresence2 compareFieldPresence2;
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127 // expected-error@second.h:* {{'CompareFieldPresence2::fieldPresence2' from module 'Second' is not present in definition of 'struct CompareFieldPresence2' in module 'First.Hidden'}}
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128 // expected-note@first.h:* {{definition has no member 'fieldPresence2'}}
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129 struct CompareFieldName compareFieldName;
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130 // expected-error@second.h:* {{'CompareFieldName::fieldNameB' from module 'Second' is not present in definition of 'struct CompareFieldName' in module 'First.Hidden'}}
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131 // expected-note@first.h:* {{definition has no member 'fieldNameB'}}
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132 struct CompareFieldOrder compareFieldOrder;
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133 // expected-error@first.h:* {{'CompareFieldOrder' has different definitions in different modules; first difference is definition in module 'First.Hidden' found field 'fieldOrderX'}}
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134 // expected-note@second.h:* {{but in 'Second' found field 'fieldOrderY'}}
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135 #endif
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136
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137 #if defined(FIRST)
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138 struct CompareFieldType {
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139 int fieldType;
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140 };
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141
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142 typedef int FieldTypedefNameA;
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143 struct CompareFieldTypedefName {
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144 FieldTypedefNameA fieldTypedefName;
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145 };
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146
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147 typedef int TypedefUnderlyingType;
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148 struct CompareFieldTypeUnderlyingTypedef {
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149 TypedefUnderlyingType fieldTypeUnderlyingTypedef;
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150 };
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151
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152 typedef int TypedefFinal;
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153 struct CompareFieldTypedefChain {
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154 TypedefFinal fieldTypeTypedefChain;
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155 };
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156 #elif defined(SECOND)
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157 struct CompareFieldType {
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158 float fieldType;
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159 };
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160
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161 typedef int FieldTypedefNameB;
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162 struct CompareFieldTypedefName {
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163 FieldTypedefNameB fieldTypedefName;
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164 };
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165
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166 struct CompareFieldTypeUnderlyingTypedef {
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167 int fieldTypeUnderlyingTypedef;
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168 };
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169
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170 typedef int TypedefIntermediate;
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171 typedef TypedefIntermediate TypedefFinal;
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172 struct CompareFieldTypedefChain {
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173 TypedefFinal fieldTypeTypedefChain;
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174 };
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175 #else
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176 struct CompareFieldType compareFieldType;
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177 // expected-error@second.h:* {{'CompareFieldType::fieldType' from module 'Second' is not present in definition of 'struct CompareFieldType' in module 'First.Hidden'}}
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178 // expected-note@first.h:* {{declaration of 'fieldType' does not match}}
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179 struct CompareFieldTypedefName compareFieldTypedefName;
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180 // expected-error@first.h:* {{'CompareFieldTypedefName' has different definitions in different modules; first difference is definition in module 'First.Hidden' found field 'fieldTypedefName' with type 'FieldTypedefNameA' (aka 'int')}}
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181 // expected-note@second.h:* {{but in 'Second' found field 'fieldTypedefName' with type 'FieldTypedefNameB' (aka 'int')}}
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182 struct CompareFieldTypeUnderlyingTypedef compareFieldTypeUnderlyingTypedef;
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183 // expected-error@first.h:* {{'CompareFieldTypeUnderlyingTypedef' has different definitions in different modules; first difference is definition in module 'First.Hidden' found field 'fieldTypeUnderlyingTypedef' with type 'TypedefUnderlyingType' (aka 'int')}}
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184 // expected-note@second.h:* {{but in 'Second' found field 'fieldTypeUnderlyingTypedef' with type 'int'}}
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185 struct CompareFieldTypedefChain compareFieldTypedefChain;
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186 #endif
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187
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188 #if defined(FIRST)
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189 struct CompareMatchingBitfields {
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190 unsigned matchingBitfields : 3;
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191 };
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192
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193 struct CompareBitfieldPresence1 {
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194 unsigned bitfieldPresence1 : 1;
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195 };
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196 struct CompareBitfieldPresence2 {
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197 unsigned bitfieldPresence2;
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198 };
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199
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200 struct CompareBitfieldWidth {
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201 unsigned bitfieldWidth : 2;
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202 };
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203
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204 struct CompareBitfieldWidthExpression {
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205 unsigned bitfieldWidthExpression : 1 + 1;
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206 };
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207 #elif defined(SECOND)
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208 struct CompareMatchingBitfields {
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209 unsigned matchingBitfields : 3;
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210 };
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211
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212 struct CompareBitfieldPresence1 {
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213 unsigned bitfieldPresence1;
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214 };
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215 struct CompareBitfieldPresence2 {
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216 unsigned bitfieldPresence2 : 1;
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217 };
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218
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219 struct CompareBitfieldWidth {
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220 unsigned bitfieldWidth : 1;
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221 };
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222
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223 struct CompareBitfieldWidthExpression {
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224 unsigned bitfieldWidthExpression : 2;
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225 };
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226 #else
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227 struct CompareMatchingBitfields compareMatchingBitfields;
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228 struct CompareBitfieldPresence1 compareBitfieldPresence1;
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229 // expected-error@first.h:* {{'CompareBitfieldPresence1' has different definitions in different modules; first difference is definition in module 'First.Hidden' found bitfield 'bitfieldPresence1'}}
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230 // expected-note@second.h:* {{but in 'Second' found non-bitfield 'bitfieldPresence1'}}
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231 struct CompareBitfieldPresence2 compareBitfieldPresence2;
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232 // expected-error@first.h:* {{'CompareBitfieldPresence2' has different definitions in different modules; first difference is definition in module 'First.Hidden' found non-bitfield 'bitfieldPresence2'}}
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233 // expected-note@second.h:* {{but in 'Second' found bitfield 'bitfieldPresence2'}}
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234 struct CompareBitfieldWidth compareBitfieldWidth;
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235 // expected-error@first.h:* {{'CompareBitfieldWidth' has different definitions in different modules; first difference is definition in module 'First.Hidden' found bitfield 'bitfieldWidth' with one width expression}}
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236 // expected-note@second.h:* {{but in 'Second' found bitfield 'bitfieldWidth' with different width expression}}
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237 struct CompareBitfieldWidthExpression compareBitfieldWidthExpression;
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238 // expected-error@first.h:* {{'CompareBitfieldWidthExpression' has different definitions in different modules; first difference is definition in module 'First.Hidden' found bitfield 'bitfieldWidthExpression' with one width expression}}
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239 // expected-note@second.h:* {{but in 'Second' found bitfield 'bitfieldWidthExpression' with different width expressio}}
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240 #endif
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241
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242 #if defined(FIRST)
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243 struct CompareMatchingArrayFields {
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244 int matchingArrayField[7];
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245 };
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246
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247 struct CompareArrayLength {
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248 int arrayLengthField[5];
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249 };
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250
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251 struct CompareArrayType {
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252 int arrayTypeField[5];
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253 };
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254 #elif defined(SECOND)
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255 struct CompareMatchingArrayFields {
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256 int matchingArrayField[7];
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257 };
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258
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259 struct CompareArrayLength {
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260 int arrayLengthField[7];
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261 };
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262
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263 struct CompareArrayType {
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264 float arrayTypeField[5];
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265 };
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266 #else
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267 struct CompareMatchingArrayFields compareMatchingArrayFields;
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268 struct CompareArrayLength compareArrayLength;
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269 // expected-error@second.h:* {{'CompareArrayLength::arrayLengthField' from module 'Second' is not present in definition of 'struct CompareArrayLength' in module 'First.Hidden'}}
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270 // expected-note@first.h:* {{declaration of 'arrayLengthField' does not match}}
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271 struct CompareArrayType compareArrayType;
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272 // expected-error@second.h:* {{'CompareArrayType::arrayTypeField' from module 'Second' is not present in definition of 'struct CompareArrayType' in module 'First.Hidden'}}
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273 // expected-note@first.h:* {{declaration of 'arrayTypeField' does not match}}
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274 #endif
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275
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276 #if defined(FIRST)
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277 struct CompareFieldAsForwardDeclaration {
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278 struct FieldForwardDeclaration *fieldForwardDeclaration;
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279 };
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280
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281 enum FieldEnumA { kFieldEnumValue };
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282 struct CompareFieldAsEnum {
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283 enum FieldEnumA fieldEnum;
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284 };
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285
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286 struct FieldStructA {};
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287 struct CompareFieldAsStruct {
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288 struct FieldStructA fieldStruct;
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289 };
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290 #elif defined(SECOND)
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291 struct FieldForwardDeclaration {};
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292 struct CompareFieldAsForwardDeclaration {
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293 struct FieldForwardDeclaration *fieldForwardDeclaration;
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294 };
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295
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296 enum FieldEnumB { kFieldEnumValue };
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297 struct CompareFieldAsEnum {
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298 enum FieldEnumB fieldEnum;
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299 };
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300
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301 struct FieldStructB {};
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302 struct CompareFieldAsStruct {
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303 struct FieldStructB fieldStruct;
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304 };
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305 #else
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306 struct CompareFieldAsForwardDeclaration compareFieldAsForwardDeclaration;
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307 struct CompareFieldAsEnum compareFieldAsEnum;
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308 // expected-error@second.h:* {{'CompareFieldAsEnum::fieldEnum' from module 'Second' is not present in definition of 'struct CompareFieldAsEnum' in module 'First.Hidden'}}
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309 // expected-note@first.h:* {{declaration of 'fieldEnum' does not match}}
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310 struct CompareFieldAsStruct compareFieldAsStruct;
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311 // expected-error@second.h:* {{'CompareFieldAsStruct::fieldStruct' from module 'Second' is not present in definition of 'struct CompareFieldAsStruct' in module 'First.Hidden'}}
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312 // expected-note@first.h:* {{declaration of 'fieldStruct' does not match}}
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313 #endif
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314
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315 #if defined(FIRST)
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316 union CompareMatchingUnionFields {
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317 int matchingFieldA;
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318 float matchingFieldB;
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319 };
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320
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321 union CompareUnionFieldOrder {
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322 int unionFieldOrderA;
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323 float unionFieldOrderB;
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324 };
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325
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326 union CompareUnionFieldType {
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327 int unionFieldType;
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328 };
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329 #elif defined(SECOND)
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330 union CompareMatchingUnionFields {
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331 int matchingFieldA;
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332 float matchingFieldB;
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333 };
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334
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335 union CompareUnionFieldOrder {
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336 float unionFieldOrderB;
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337 int unionFieldOrderA;
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338 };
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339
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340 union CompareUnionFieldType {
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341 unsigned int unionFieldType;
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342 };
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343 #else
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344 union CompareMatchingUnionFields compareMatchingUnionFields;
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345 union CompareUnionFieldOrder compareUnionFieldOrder;
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346 // expected-error@first.h:* {{'CompareUnionFieldOrder' has different definitions in different modules; first difference is definition in module 'First.Hidden' found field 'unionFieldOrderA'}}
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347 // expected-note@second.h:* {{but in 'Second' found field 'unionFieldOrderB'}}
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348 union CompareUnionFieldType compareUnionFieldType;
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349 // expected-error@second.h:* {{'CompareUnionFieldType::unionFieldType' from module 'Second' is not present in definition of 'union CompareUnionFieldType' in module 'First.Hidden'}}
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350 // expected-note@first.h:* {{declaration of 'unionFieldType' does not match}}
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351 #endif
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352
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353 // Test that we find and compare definitions even if they are not the first encountered declaration in a module.
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354 #if defined(FIRST)
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355 struct CompareDefinitionsRegardlessForwardDeclarations {
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356 int definitionField;
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357 };
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358 #elif defined(SECOND)
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359 struct CompareDefinitionsRegardlessForwardDeclarations;
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360 struct CompareDefinitionsRegardlessForwardDeclarations {
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361 float definitionField;
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362 };
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363 #else
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364 struct CompareDefinitionsRegardlessForwardDeclarations compareDefinitions;
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365 // expected-error@second.h:* {{'CompareDefinitionsRegardlessForwardDeclarations::definitionField' from module 'Second' is not present in definition of 'struct CompareDefinitionsRegardlessForwardDeclarations' in module 'First.Hidden'}}
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366 // expected-note@first.h:* {{declaration of 'definitionField' does not match}}
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367 #endif
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368
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369 //--- include/first-nested-struct.h
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370 struct CompareNestedStruct {
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371 struct NestedLevel1 {
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372 struct NestedLevel2 {
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373 int a;
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374 } y;
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375 } x;
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376 };
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377
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378 struct IndirectStruct {
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379 int mismatchingField;
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380 };
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381 struct DirectStruct {
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382 struct IndirectStruct indirectField;
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383 };
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384 struct CompareDifferentFieldInIndirectStruct {
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385 struct DirectStruct directField;
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386 };
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387 struct CompareIndirectStructPointer {
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388 struct DirectStruct *directFieldPointer;
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389 };
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390
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391 //--- include/second-nested-struct.h
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392 struct CompareNestedStruct {
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393 struct NestedLevel1 {
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394 struct NestedLevel2 {
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395 float b;
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396 } y;
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397 } x;
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398 };
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399
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400 struct IndirectStruct {
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401 float mismatchingField;
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402 };
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403 struct DirectStruct {
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404 struct IndirectStruct indirectField;
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405 };
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406 struct CompareDifferentFieldInIndirectStruct {
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407 struct DirectStruct directField;
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408 };
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409 struct CompareIndirectStructPointer {
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410 struct DirectStruct *directFieldPointer;
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411 };
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412
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413 //--- test-nested-struct.c
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414 #include "first-empty.h"
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415 #include "second-nested-struct.h"
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416
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417 #if defined(CASE1)
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418 struct CompareNestedStruct compareNestedStruct;
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419 // expected-error@second-nested-struct.h:* {{'NestedLevel2::b' from module 'Second' is not present in definition of 'struct NestedLevel2' in module 'First.Hidden'}}
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420 // expected-note@first-nested-struct.h:* {{definition has no member 'b'}}
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421 #elif defined(CASE2)
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422 struct CompareDifferentFieldInIndirectStruct compareIndirectStruct;
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423 // expected-error@second-nested-struct.h:* {{'IndirectStruct::mismatchingField' from module 'Second' is not present in definition of 'struct IndirectStruct' in module 'First.Hidden'}}
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424 // expected-note@first-nested-struct.h:* {{declaration of 'mismatchingField' does not match}}
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425 #elif defined(CASE3)
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426 // expected-error@second-nested-struct.h:* {{'IndirectStruct::mismatchingField' from module 'Second' is not present in definition of 'struct IndirectStruct' in module 'First.Hidden'}}
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427 // expected-note@first-nested-struct.h:* {{declaration of 'mismatchingField' does not match}}
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428 struct CompareIndirectStructPointer compareIndirectStructPointer;
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429 struct DirectStruct test() {
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430 // Make sure the type behind the pointer is inspected.
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431 return *compareIndirectStructPointer.directFieldPointer;
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432 }
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433 #endif
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434
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435 //--- include/first-anonymous.h
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436 struct CompareAnonymousNestedUnion {
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437 union {
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438 int anonymousNestedUnionField;
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439 };
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440 };
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441
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442 struct CompareAnonymousNestedStruct {
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443 struct {
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444 int anonymousNestedStructField;
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445 };
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446 };
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447
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448 struct CompareDeeplyNestedAnonymousUnionsAndStructs {
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449 union {
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450 int x;
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451 union {
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452 int y;
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453 struct {
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454 int z;
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455 };
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456 };
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457 };
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458 };
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459
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460 //--- include/second-anonymous.h
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461 struct CompareAnonymousNestedUnion {
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462 union {
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463 float anonymousNestedUnionField;
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464 };
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465 };
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466
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467 struct CompareAnonymousNestedStruct {
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468 struct {
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469 float anonymousNestedStructField;
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470 };
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471 };
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472
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473 struct CompareDeeplyNestedAnonymousUnionsAndStructs {
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474 union {
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475 int x;
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476 union {
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477 int y;
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478 struct {
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479 float z;
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480 };
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481 };
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482 };
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483 };
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484
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485 //--- test-anonymous.c
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486 #include "first-empty.h"
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487 #include "second-anonymous.h"
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488
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489 #if defined(CASE1)
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490 struct CompareAnonymousNestedUnion compareAnonymousNestedUnion;
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491 // expected-error-re@second-anonymous.h:* {{'CompareAnonymousNestedUnion::(anonymous union)::anonymousNestedUnionField' from module 'Second' is not present in definition of 'union CompareAnonymousNestedUnion::(anonymous at {{.*}})' in module 'First.Hidden'}}
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492 // expected-note@first-anonymous.h:* {{declaration of 'anonymousNestedUnionField' does not match}}
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493 #elif defined(CASE2)
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494 struct CompareAnonymousNestedStruct compareAnonymousNestedStruct;
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495 // expected-error-re@second-anonymous.h:* {{'CompareAnonymousNestedStruct::(anonymous struct)::anonymousNestedStructField' from module 'Second' is not present in definition of 'struct CompareAnonymousNestedStruct::(anonymous at {{.*}})' in module 'First.Hidden'}}
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496 // expected-note@first-anonymous.h:* {{declaration of 'anonymousNestedStructField' does not match}}
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497 #elif defined(CASE3)
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498 struct CompareDeeplyNestedAnonymousUnionsAndStructs compareDeeplyNested;
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499 // expected-error-re@second-anonymous.h:* {{'CompareDeeplyNestedAnonymousUnionsAndStructs::(anonymous union)::(anonymous union)::(anonymous struct)::z' from module 'Second' is not present in definition of 'struct CompareDeeplyNestedAnonymousUnionsAndStructs::(anonymous at {{.*}})' in module 'First.Hidden'}}
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500 // expected-note@first-anonymous.h:* {{declaration of 'z' does not match}}
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501 #endif
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