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Jonas Devlieghere
b46098e73d
Before this patch, changing the working directory of the RedirectingFS would just forward to its external file system. This prevented us from having a working directory that only existed in the VFS mapping. This patch adds support for a virtual working directory in the RedirectingFileSystem. It now keeps track of its own WD in addition to updating the WD of the external file system. This ensures that we can still fall through for relative paths. This change was originally motivated by the reproducer infrastructure in LLDB where we want to deal transparently with relative paths. Differential revision: https://reviews.llvm.org/D65677 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374955 91177308-0d34-0410-b5e6-96231b3b80d8
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