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150
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1 // RUN: rm -rf %t
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252
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2 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -emit-module -fmodules-cache-path=%t -fmodule-name=diag_pragma -x c++ %S/Inputs/module.map -std=c++20
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3 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -verify -fmodules-cache-path=%t -I %S/Inputs %s -std=c++20
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4 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -emit-module -fmodule-name=diag_pragma -x c++ %S/Inputs/module.map -std=c++20 -o %t/explicit.pcm -Werror=string-plus-int
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5 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -verify -fmodules-cache-path=%t -I %S/Inputs %s -std=c++20 -DEXPLICIT_FLAG -fmodule-file=%t/explicit.pcm
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150
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6
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7 import diag_pragma;
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8
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9 int foo(int x) {
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10 // Diagnostics from templates in the module follow the diagnostic state from
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11 // when the module was built.
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12 #ifdef EXPLICIT_FLAG
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13 // expected-error@diag_pragma.h:7 {{adding 'int' to a string}}
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14 #else
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15 // expected-warning@diag_pragma.h:7 {{adding 'int' to a string}}
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16 #endif
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17 // expected-note@diag_pragma.h:7 {{use array indexing}}
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18 f(0); // expected-note {{instantiation of}}
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19
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20 g(0); // ok, warning was ignored when building module
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21
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22 // Diagnostics from this source file ignore the diagnostic state from the
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23 // module.
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24 void("foo" + x); // expected-warning {{adding 'int' to a string}}
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25 // expected-note@-1 {{use array indexing}}
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26
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27 #pragma clang diagnostic ignored "-Wstring-plus-int"
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28
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29 // Diagnostics from the module ignore diagnostic state changes from this
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30 // source file.
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31 #ifdef EXPLICIT_FLAG
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32 // expected-error@diag_pragma.h:7 {{adding 'long' to a string}}
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33 #else
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34 // expected-warning@diag_pragma.h:7 {{adding 'long' to a string}}
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35 #endif
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36 // expected-note@diag_pragma.h:7 {{use array indexing}}
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37 f(0L); // expected-note {{instantiation of}}
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38
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39 g(0L);
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40
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41 void("bar" + x);
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42
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43 if (x = DIAG_PRAGMA_MACRO) // expected-warning {{using the result of an assignment as a condition without parentheses}} \
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44 // expected-note {{place parentheses}} expected-note {{use '=='}}
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252
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45 // expected-error@-2 {{use of undeclared identifier 'DIAG_PRAGMA_MACRO'}}
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150
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46 return 0;
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47 return 1;
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48 }
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