internal static bool IsDirectory(ref RawFindData findData)
{
FileAttributes attributes = findData.Attributes;
return(attributes != (FileAttributes)(-1) &&
(attributes & FileAttributes.Directory) != 0);
}
internal static FileSystemInfo AsFileSystemInfo(ref RawFindData findData)
{
string fileName = new string(findData.FileName);
string fullPath = PathHelpers.CombineNoChecks(findData.Directory, fileName);
return((findData.Attributes & FileAttributes.Directory) != 0
? (FileSystemInfo) new DirectoryInfo(fullPath, fileName, ref findData)
: (FileSystemInfo) new FileInfo(fullPath, fileName, ref findData));
}
public unsafe bool Match(ref RawFindData findData)
{
if (_filter == null)
{
return(true);
}
// RtlIsNameInExpression is the native API DosMatcher is replicating.
return(DosMatcher.MatchPattern(_filter, findData.FileName, _ignoreCase));
}
public unsafe bool Match(ref RawFindData record)
{
foreach (var filter in _filters)
{
if (!filter.Match(ref record))
{
return(false);
}
}
return(true);
}
protected virtual void PopulateData(ref RawFindData findData)
{
_source = Source.FindResult;
Name = findData.FileName.ToString();
Path = Paths.Combine(findData.Directory, Name);
Attributes = (System.IO.FileAttributes)findData.FileAttributes;
CreationTime = findData.CreationTimeUtc;
LastAccessTime = findData.LastAccessTimeUtc;
LastWriteTime = findData.LastWriteTimeUtc;
Exists = true;
}
internal static IFileSystemInformation Create(ref RawFindData findData, IFileService fileService)
{
if ((findData.FileAttributes & FileAttributes.Directory) != 0)
{
return(DirectoryInformation.Create(ref findData, fileService));
}
else
{
return(FileInformation.Create(ref findData, fileService));
}
}
new static internal IFileSystemInformation Create(ref RawFindData findData, IFileService fileService)
{
if ((findData.FileAttributes & FileAttributes.Directory) == 0)
{
throw new ArgumentOutOfRangeException(nameof(findData));
}
var directoryInfo = new DirectoryInformation(fileService);
directoryInfo.PopulateData(ref findData);
return(directoryInfo);
}
public unsafe string TransformResult(ref RawFindData findData)
{
int totalLength = findData.FileName.Length + findData.Directory.Length + 1;
string fullPath = new string('\0', totalLength);
fixed(char *f = fullPath)
{
Span <char> pathSpan = new Span <char>(f, totalLength);
ReadOnlySpan <char> directorySpan = findData.Directory.AsSpan();
directorySpan.CopyTo(pathSpan);
pathSpan[directorySpan.Length] = Paths.DirectorySeparator;
findData.FileName.CopyTo(pathSpan.Slice(directorySpan.Length + 1));
}
return(fullPath);
}
public IFileSystemInformation TransformResult(ref RawFindData findData)
{
return(FileSystemInformation.Create(ref findData, _fileService));
}
internal static DirectoryInfo AsDirectoryInfo(ref RawFindData findData)
{
string fileName = new string(findData.FileName);
return(new DirectoryInfo(PathHelpers.CombineNoChecks(findData.Directory, fileName), fileName, ref findData));
}
/// <summary>
/// Returns the full path for find results, based off of the initially provided path.
/// </summary>
internal static string AsUserFullPath(ref RawFindData findData)
{
ReadOnlySpan <char> subdirectory = findData.Directory.AsReadOnlySpan().Slice(findData.OriginalDirectory.Length);
return(PathHelpers.CombineNoChecks(findData.OriginalUserDirectory, subdirectory, findData.FileName));
}
internal static bool NotDotOrDotDot(ref RawFindData findData) => !PathHelpers.IsDotOrDotDot(findData.FileName);
public unsafe string TransformResult(ref RawFindData findData)
{
return(findData.FileName.CreateString());
}
public unsafe FindResult TransformResult(ref RawFindData findData) => new FindResult(ref findData);
public bool Match(ref RawFindData findData)
{
return((findData.FileAttributes & _excludeAttributes) == 0 &&
!findData.FileName.SequenceEqual("..".AsSpan()) &&
!findData.FileName.SequenceEqual(".".AsSpan()));
}
public bool Match(ref RawFindData findData) => true;
public static unsafe bool NotSpecialDirectory(ref RawFindData findData)
{
return(findData.FileName.Length > 2 ||
findData.FileName[0] != '.' ||
(findData.FileName.Length == 2 && findData.FileName[1] != '.'));
}
public unsafe bool Match(ref RawFindData findData) => NotSpecialDirectory(ref findData);
