derek.holloway
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54 lines
2.8 KiB
C++
54 lines
2.8 KiB
C++
// RUN: rm -rf %t
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// RUN: mkdir %t
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// RUN: split-file --leading-lines %s %t
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// RUN: %clang_cc1 -std=c++20 -pedantic-errors -fexceptions -fcxx-exceptions -triple x86_64-unknown-unknown %t/cwg279_A.cppm -emit-module-interface -o %t/cwg279_A.pcm
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// RUN: %clang_cc1 -std=c++20 -pedantic-errors -fexceptions -fcxx-exceptions -triple x86_64-unknown-unknown %t/cwg279.cpp -fmodule-file=cwg279_A=%t/cwg279_A.pcm -verify=since-cxx20
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// RUN: %clang_cc1 -std=c++23 -pedantic-errors -fexceptions -fcxx-exceptions -triple x86_64-unknown-unknown %t/cwg279_A.cppm -emit-module-interface -o %t/cwg279_A.pcm
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// RUN: %clang_cc1 -std=c++23 -pedantic-errors -fexceptions -fcxx-exceptions -triple x86_64-unknown-unknown %t/cwg279.cpp -fmodule-file=cwg279_A=%t/cwg279_A.pcm -verify=since-cxx20
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// RUN: %clang_cc1 -std=c++2c -pedantic-errors -fexceptions -fcxx-exceptions -triple x86_64-unknown-unknown %t/cwg279_A.cppm -emit-module-interface -o %t/cwg279_A.pcm
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// RUN: %clang_cc1 -std=c++2c -pedantic-errors -fexceptions -fcxx-exceptions -triple x86_64-unknown-unknown %t/cwg279.cpp -fmodule-file=cwg279_A=%t/cwg279_A.pcm -verify=since-cxx20
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// cwg279: no
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//--- cwg279_A.cppm
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export module cwg279_A;
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export {
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struct S; // #cwg279-S
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extern S *q; // #cwg279-q
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struct S2 {}; // #cwg279-S2
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extern S2 *q2; // #cwg279-q2
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struct S3 {}; // #cwg279-S3
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extern S3 *q3; // #cwg279-q3
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} // export
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//--- cwg279.cpp
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import cwg279_A;
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// FIXME: We should use markers instead. They are less fragile,
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// but -verify doesn't support them across modules yet.
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// FIXME: This is well-formed. Previous "definition" is actually just a declaration.
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typedef struct {} S;
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// since-cxx20-error@-1 {{typedef redefinition with different types ('struct S' vs 'S')}}
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// since-cxx20-note@cwg279_A.cppm:17 {{previous definition is here}}
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extern S *q;
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// since-cxx20-error@-1 {{declaration of 'q' in the global module follows declaration in module cwg279_A}}
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// since-cxx20-note@cwg279_A.cppm:18 {{previous declaration is here}}
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typedef struct {} S2;
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// since-cxx20-error@-1 {{typedef redefinition with different types ('struct S2' vs 'S2')}}
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// since-cxx20-note@cwg279_A.cppm:20 {{previous definition is here}}
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extern S2 *q2;
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// since-cxx20-error@-1 {{declaration of 'q2' in the global module follows declaration in module cwg279_A}}
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// since-cxx20-note@cwg279_A.cppm:21 {{previous declaration is here}}
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// FIXME: This is well-formed, because [basic.def.odr]/15 is satisfied.
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struct S3 {};
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// since-cxx20-error@-1 {{declaration of 'S3' in the global module follows declaration in module cwg279_A}}
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// since-cxx20-note@cwg279_A.cppm:23 {{previous declaration is here}}
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extern S3 *q3;
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// since-cxx20-error@-1 {{declaration of 'q3' in the global module follows declaration in module cwg279_A}}
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// since-cxx20-note@cwg279_A.cppm:24 {{previous declaration is here}}
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