b37233a253
The following test fails to compile TU b.cpp because we are not making the transitively imported modules visible (per [module.import]/p7)
```
a.cppm:
export module a;
export int foo() {
return 42;
}
b.cppm:
export module b;
import a;
export int bar();
b.cpp:
module b;
int bar() {
return foo();
}
clang++ -c -std=c++2b -fmodule-output a.cppm
clang++ -c -std=c++2b -fmodule-output -fprebuilt-module-path=. b.cppm
clang++ -c -std=c++2b -fprebuilt-module-path=. b.cpp
b.cpp:4:12: error: declaration of 'foo' must be imported from module 'a' before it is required
return foo();
```
This is fixed by the following patch (which also addresses a FIXME in basic.def.odr/p6.cppm).
Differential Revision: https://reviews.llvm.org/D152746
50 lines
880 B
C++
50 lines
880 B
C++
// RUN: mkdir -p %t
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// RUN: split-file %s %t
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// All of the following should build without diagnostics.
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//
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// RUN: %clang_cc1 -std=c++20 %t/a.cpp -emit-module-interface -o %t/a.pcm
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// R U N: %clang_cc1 -std=c++20 %t/a.pcm -emit-obj -o %t/a.o
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//
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// RUN: %clang_cc1 -std=c++20 %t/b.cpp -emit-module-interface -o %t/b.pcm \
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// RUN: -fprebuilt-module-path=%t
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// R U N: %clang_cc1 -std=c++20 %t/b.pcm -emit-obj -o %t/b.o
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//
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// RUN: %clang_cc1 -std=c++20 %t/b-impl.cpp -emit-obj -o %t/b-impl.o \
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// RUN: -fprebuilt-module-path=%t
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//
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// RUN: %clang_cc1 -std=c++20 %t/ab-main.cpp -fsyntax-only \
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// RUN: -fprebuilt-module-path=%t
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//--- a.cpp
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export module a;
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export int foo() {
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return 42;
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}
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//--- b.cpp
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export module b;
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import a;
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export int bar();
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//--- b-impl.cpp
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module b;
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int bar() {
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return foo();
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}
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//--- ab-main.cpp
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import b;
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int main() {
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return bar();
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}
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