[PATCH] D129748: [C++20] [Modules] Warn for the use of preferred_name in modules

[Chuanqi Xu via Phabricator via cfe-commits]

ChuanqiXu added a comment.

@erichkeane @aaron.ballman @tahonermann I get another idea. We could tell the user honestly that we couldn't handle it (temporarily). We could still modularize the STL by a trick: https://github.com/ChuanqiXu9/stdmodules/blob/e81f4e9e74f96021f2e45c48f44da93e806c4524/Makefile#L3

In this way, we don't need to worry about the dirty implementation pollutes the sources. (I think it is not bad to emit a warning to tell the user we couldn't do something (now).)


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  https://reviews.llvm.org/D129748/new/

https://reviews.llvm.org/D129748