[PATCH] D122124: [C++20][Modules] Add testcases from section 10.2 dependent on header units.

[Iain Sandoe via Phabricator via cfe-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGbdadf1c2ecb4: [C++20][Modules] Add testcases from section 10.2 dependent on header units. (authored by iains).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122124/new/

https://reviews.llvm.org/D122124

Files:
  clang/test/Modules/cxx20-10-2-ex2.cpp


Index: clang/test/Modules/cxx20-10-2-ex2.cpp
===================================================================
--- /dev/null
+++ clang/test/Modules/cxx20-10-2-ex2.cpp
@@ -0,0 +1,42 @@
+// Based on C++20 10.2 example 2.
+
+// RUN: rm -rf %t
+// RUN: mkdir -p %t
+// RUN: split-file %s %t
+
+// RUN: %clang_cc1 -std=c++20 -emit-header-unit -I %t \
+// RUN: -xc++-user-header std-10-2-ex2-c.h -o %t/std-10-2-ex2-c.pcm
+
+// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/std-10-2-ex2-tu1.cpp \
+// RUN:  -o  %t/X.pcm
+
+// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/std-10-2-ex2-tu2.cpp \
+// RUN: -fmodule-file=%t/std-10-2-ex2-c.pcm -fmodule-file=%t/X.pcm \
+// RUN: -pedantic-errors -verify -o  %t/M.pcm
+
+//--- std-10-2-ex2-b.h
+int f();
+
+//--- std-10-2-ex2-c.h
+int g();
+
+//--- std-10-2-ex2-tu1.cpp
+export module X;
+export int h();
+
+//--- std-10-2-ex2-tu2.cpp
+module;
+#include "std-10-2-ex2-b.h"
+
+export module M;
+import "std-10-2-ex2-c.h";
+import X;
+export using ::f, ::g, ::h; // OK
+struct S;                   // expected-note {{target of using declaration}}
+export using ::S;           // expected-error {{using declaration referring to 'S' with module linkage cannot be exported}}
+
+namespace N {
+export int h();
+static int h(int); // expected-note {{target of using declaration}}
+} // namespace N
+export using N::h; // expected-error {{using declaration referring to 'h' with internal linkage cannot be exported}}


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