caio/clang-p2996
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Add vfs::FileSystem::getRealPath

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Summary: And change `FileManager::getCanonicalName` to use getRealPath.

Reviewers: bkramer

Reviewed By: bkramer

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D46942

llvm-svn: 332590
This commit is contained in:
Eric Liu
2018-05-17 10:26:23 +00:00
parent 848405b164
commit 5fb18fec5d
3 changed files with 21 additions and 16 deletions
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13
clang/lib/Basic/VirtualFileSystem.cpp
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@@ -139,6 +139,11 @@ std::error_code FileSystem::makeAbsolute(SmallVectorImpl<char> &Path) const {
return llvm::sys::fs::make_absolute(WorkingDir.get(), Path);
}
std::error_code FileSystem::getRealPath(const Twine &Path,
SmallVectorImpl<char> &Output) const {
return errc::operation_not_permitted;
}
bool FileSystem::exists(const Twine &Path) {
auto Status = status(Path);
return Status && Status->exists();
@@ -236,6 +241,8 @@ public:
llvm::ErrorOr<std::string> getCurrentWorkingDirectory() const override;
std::error_code setCurrentWorkingDirectory(const Twine &Path) override;
std::error_code getRealPath(const Twine &Path,
SmallVectorImpl<char> &Output) const override;
};
} // namespace
@@ -274,6 +281,12 @@ std::error_code RealFileSystem::setCurrentWorkingDirectory(const Twine &Path) {
return llvm::sys::fs::set_current_path(Path);
}
std::error_code
RealFileSystem::getRealPath(const Twine &Path,
SmallVectorImpl<char> &Output) const {
return llvm::sys::fs::real_path(Path, Output);
}
IntrusiveRefCntPtr<FileSystem> vfs::getRealFileSystem() {
static IntrusiveRefCntPtr<FileSystem> FS = new RealFileSystem();
return FS;