private static bool IsDriveRoot(string fullPath)
 {
     return(IOUtilities.PerformIO(() => new DirectoryInfo(fullPath).Parent == null));
 }
 private static FileSystemInfo[] GetFileSystemInfos(DirectoryInfo directoryInfo)
 {
     return(IOUtilities.PerformIO(directoryInfo.GetFileSystemInfos, SpecializedCollections.EmptyArray <FileSystemInfo>()));
 }
 private static FileSystemInfo[] GetFileSystemInfos(DirectoryInfo directoryInfo)
 {
     return(IOUtilities.PerformIO(directoryInfo.GetFileSystemInfos, Array.Empty <FileSystemInfo>()));
 }