Add vfs::FileSystem::getRealPath
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
diff --git a/clang/lib/Basic/VirtualFileSystem.cpp b/clang/lib/Basic/VirtualFileSystem.cpp
index 84684a4..1727b7d 100644
--- a/clang/lib/Basic/VirtualFileSystem.cpp
+++ b/clang/lib/Basic/VirtualFileSystem.cpp
@@ -139,6 +139,11 @@
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 @@
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 @@
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;