[PATCH] D135849: [llvm] Return canonical virtual path from `RedirectingFileSystem`

[Ben Langmuir via Phabricator via llvm-commits]

benlangmuir added a comment.

> Just realized this most likely won't work if the case-insensitive VFS is specified with wrong spelling too, e.g. Fw.framework.

Is this about the spelling in the VFS definition itself, or about the path being looked up? If it's the VFS definition maybe we can say that's a bug for whoever wrote the VFS? Ideally we could diagnose but I'm not sure we want to pay for a lot of calls to realpath.



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Comment at: llvm/include/llvm/Support/VirtualFileSystem.h:876
+    /// Chain of parent directory entries for \c E.
+    std::vector<Entry *> Parents;
+
----------------
SmallVector?


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https://reviews.llvm.org/D135849