================
@@ -0,0 +1,52 @@
+// RUN: rm -rf %t
+// RUN: mkdir -p %t
+// RUN: split-file %s %t
+
+// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/A.cppm -triple
x86_64-linux-gnu -verify
+// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/B.cppm -triple
x86_64-linux-gnu -verify
+// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/C.cppm -triple
x86_64-linux-gnu -verify
+// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/D.cppm -triple
x86_64-linux-gnu -verify
+
+//--- version.h
+#ifndef VERSION_H
+#define VERSION_H
+
+#define VERSION libv5
+#define A a
+#define B b
+#define C c
+#define FUNC_LIKE(X) function_like_##X
+
+#endif
+
+//--- A.cppm
+export module x;
+#include "version.h"
+export module VERSION; // expected-error {{the name of a module declaration
cannot contains an object-like macro 'VERSION', and the macro will not expand}}
+
+//--- B.cppm
+export module x;
+#include "version.h"
+export module A.B; // expected-error {{the name of a module declaration
cannot contains an object-like macro 'A', and the macro will not expand}} \
+ // expected-error {{the name of a module declaration
cannot contains an object-like macro 'B', and the macro will not expand}}
+
+//--- C.cppm
+export module x;
+#include "version.h"
+export module A.FUNC_LIKE(foo):C; // expected-error {{the name of a module
declaration cannot contains an object-like macro 'A', and the macro will not
expand}} \
+ // expected-error {{the name of a module
declaration cannot contains a function-like macro 'FUNC_LIKE', and the macro
will not expand}} \
+ // expected-error {{the name of a module
partition declaration cannot contains an object-like macro 'C', and the macro
will not expand}}
+
+//--- D.cppm
+export module x;
+#include "version.h"
+export module B.A.FUNC_LIKE(bar):C; // expected-error {{the name of a module
declaration cannot contains an object-like macro 'B', and the macro will not
expand}} \
+ // expected-error {{the name of a module
declaration cannot contains an object-like macro 'A', and the macro will not
expand}} \
+ // expected-error {{the name of a module
declaration cannot contains a function-like macro 'FUNC_LIKE', and the macro
will not expand}} \
+ // expected-error {{the name of a module
partition declaration cannot contains an object-like macro 'C', and the macro
will not expand}}
+
+//--- E.cppm
+export module x;
+#include "version.h"
+export module a.FUNC_LIKE:c // OK, FUNC_LIKE would not be treated as a macro
name.
+// expected-no-diagnostics
----------------
yronglin wrote:
Good catch!
https://github.com/llvm/llvm-project/pull/90574
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