[PATCH] D106864: [clang][cli] Expose -fno-cxx-modules in cc1

[Jan Svoboda via Phabricator via cfe-commits]

jansvoboda11 added inline comments.


================
Comment at: clang/test/Modules/cxx20-disable.cpp:2
+// RUN: rm -rf %t && mkdir %t
+// RUN: not %clang_cc1 -x objective-c++ -std=c++20 -fno-cxx-modules -I %t %s
+
----------------
I'm not sure how to best test this. Checking the error messages is not that useful, since they don't make the intent here any clearer:

```
<path>/llvm-project/clang/test/Modules/cxx20-disable.cpp:4:8: error: expected template
export module Foo;
       ^
<path>/llvm-project/clang/test/Modules/cxx20-disable.cpp:4:8: error: unknown type name 'module'
2 errors generated.
```


Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D106864