jhenderson added a comment.

In D70769#1761517 <https://reviews.llvm.org/D70769#1761517>, @sammccall wrote:

> It's not just unit-tests, in D70222 <https://reviews.llvm.org/D70222> we will 
> ultimately use FSes other than getRealFilesystem() in clangd.


I see, thank you.

> Having non-VFS-clean versions of functions around that silently use the real 
> FS is a bit of a scourge for users that need to be VFS-clean, honestly. 
> Parsing argv is exactly the sort of place where FS access isn't obvious and 
> exposing a function that doesn't accept a VFS encourages callers to miss this 
> aspect. At the same time this is mostly called from a bunch of drivers that 
> (presumably) don't need VFS support. Maybe allowing nullptr = real FS, or a 
> default argument, would be an OK compromise?

A default argument would be my preference there. It looks like we have some 
already.



================
Comment at: llvm/include/llvm/Support/CommandLine.h:1963
 /// \param [in] Tokenizer Tokenization strategy. Typically Unix or Windows.
+/// \param [in] FS VFS used for all file accesses when running the tool.
 /// \param [in,out] Argv Command line into which to expand response files.
----------------
Does `VFS` make sense here, given that it could be a real filesystem?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D70769/new/

https://reviews.llvm.org/D70769



_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

Reply via email to