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// RUN: rm -rf %t
// 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
// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -verify -fmodules-cache-path=%t -I %S/Inputs %s -std=c++20
// 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
// 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
import diag_pragma;
int foo(int x) {
// Diagnostics from templates in the module follow the diagnostic state from
// when the module was built.
#ifdef EXPLICIT_FLAG
// expected-error@diag_pragma.h:7 {{adding 'int' to a string}}
#else
// expected-warning@diag_pragma.h:7 {{adding 'int' to a string}}
#endif
// expected-note@diag_pragma.h:7 {{use array indexing}}
f(0); // expected-note {{instantiation of}}
g(0); // ok, warning was ignored when building module
// Diagnostics from this source file ignore the diagnostic state from the
// module.
void("foo" + x); // expected-warning {{adding 'int' to a string}}
// expected-note@-1 {{use array indexing}}
#pragma clang diagnostic ignored "-Wstring-plus-int"
// Diagnostics from the module ignore diagnostic state changes from this
// source file.
#ifdef EXPLICIT_FLAG
// expected-error@diag_pragma.h:7 {{adding 'long' to a string}}
#else
// expected-warning@diag_pragma.h:7 {{adding 'long' to a string}}
#endif
// expected-note@diag_pragma.h:7 {{use array indexing}}
f(0L); // expected-note {{instantiation of}}
g(0L);
void("bar" + x);
if (x = DIAG_PRAGMA_MACRO) // expected-warning {{using the result of an assignment as a condition without parentheses}} \
// expected-note {{place parentheses}} expected-note {{use '=='}}
// expected-error@-2 {{use of undeclared identifier 'DIAG_PRAGMA_MACRO'}}
return 0;
return 1;
}
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