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// RUN: rm -rf %t
// RUN: mkdir %t
// RUN: split-file %s %t
//
// RUN: %clang_cc1 -std=c++20 %t/a.cppm -E -P -I%t -o %t/tmp 2>&1 | FileCheck %t/a.cppm
// RUN: %clang_cc1 -std=c++20 %t/a.cppm -E -P -I%t -o - 2>&1 \
// RUN: -Wno-include-angled-in-module-purview | FileCheck %t/a.cppm --check-prefix=CHECK-NO-WARN
// RUN: %clang_cc1 -std=c++20 %t/b.cpp -E -P -I%t -o - 2>&1 | FileCheck %t/a.cppm --check-prefix=CHECK-NO-WARN
//--- a.h
// left empty
//--- b.h
#include <stddef.h>
// The headers not get included shouldn't be affected.
#ifdef WHATEVER
#include <stdint.h>
#endif
//--- a.cppm
module;
#include <stddef.h>
#include <a.h>
#include <b.h>
#include "a.h"
#include "b.h"
export module a;
#include <stddef.h>
#include <a.h>
#include <b.h>
#include "a.h"
#include "b.h"
// CHECK: a.cppm:9:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
// CHECK: a.cppm:10:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
// CHECK: a.cppm:11:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
// CHECK: In file included from {{.*}}/a.cppm:11
// CHECK-NEXT: b.h:1:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
// CHECK: In file included from {{.*}}/a.cppm:13
// CHECK-NEXT: b.h:1:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
module :private;
#include <stddef.h>
#include <a.h>
#include <b.h>
#include "a.h"
#include "b.h"
// CHECK: a.cppm:24:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
// CHECK: a.cppm:25:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
// CHECK: a.cppm:26:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
// CHECK: In file included from {{.*}}/a.cppm:26
// CHECK-NEXT: b.h:1:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
// CHECK: In file included from {{.*}}/a.cppm:28
// CHECK-NEXT: b.h:1:10: warning: '#include <filename>' attaches the declarations to the named module 'a'
// We should have catched all warnings.
// CHECK: 10 warnings generated.
// CHECK-NO-WARN-NOT: warning
//--- b.cpp
/// Don't recognize `module m);` as a module purview or report a spurious
/// warning for <stddef.h>.
struct module {};
void foo(module m);
#include <stddef.h>
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