tree 86f2d605524499788b0def3a3164198c7f0a79b3
parent c087da4b18192220debcd41d29de100987d1f324
author Jan Svoboda <jan_svoboda@apple.com> 1757542664 -0700
committer GitHub <noreply@github.com> 1757542664 -0700
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[clang] Delay normalization of `-fmodules-cache-path` (#150123)

This PR is part of an effort to remove file system usage from the
command line parsing code. The reason for that is that it's impossible
to do file system access correctly without a configured VFS, and the VFS
can only be configured after the command line is parsed. I don't want to
intertwine command line parsing and VFS configuration, so I decided to
perform the file system access after the command line is parsed and the
VFS is configured - ideally right before the file system entity is used
for the first time.

This patch delays normalization of the module cache path until
`CompilerInstance` is asked for the cache path in the current
compilation context.