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| author | Cameron Desrochers <cameron@moodycamel.com> | 2017-09-11 15:03:23 +0000 |
|---|---|---|
| committer | Cameron Desrochers <cameron@moodycamel.com> | 2017-09-11 15:03:23 +0000 |
| commit | b5b48db12ed915d2927ba6dc1f9fbe50b342de04 (patch) | |
| tree | 1f2b4778d1415c22d1865493411782d98367e700 /clang/lib/Format/TokenAnnotator.cpp | |
| parent | b092bd321a072f667dd0984fe2b07c144802b1aa (diff) | |
| download | bcm5719-llvm-b5b48db12ed915d2927ba6dc1f9fbe50b342de04.tar.gz bcm5719-llvm-b5b48db12ed915d2927ba6dc1f9fbe50b342de04.zip | |
[PCH] Allow VFS to be used for tests that generate PCH files
When using a virtual file-system (VFS) and a preamble file (PCH) is generated,
it is generated on-disk in the real file-system instead of in the VFS (which
makes sense, since the VFS is read-only). However, when subsequently reading
the generated PCH, the frontend passes through the VFS it has been given --
resulting in an error and a failed parse (since the VFS doesn't contain the
PCH; the real filesystem does).
This patch fixes that by detecting when a VFS is being used for a parse that
needs to work with a PCH file, and creating an overlay VFS that includes the
PCH file from the real file-system.
This allows tests to be written which make use of both PCH files and a VFS.
Differential Revision: https://reviews.llvm.org/D37474
llvm-svn: 312917
Diffstat (limited to 'clang/lib/Format/TokenAnnotator.cpp')
0 files changed, 0 insertions, 0 deletions
