private IEnumerable <string> EnumerateFullFileSystemPaths(string path, string searchPattern, bool includeFiles, bool includeDirectories)
{
FindPredicate predicate = (ref ReadOnlySpan <char> fileName) =>
{
return(FileMatcher.IsAllFilesWildcard(searchPattern) || FileMatcher.IsMatch(fileName, searchPattern));
};
FindTransform <string> transform = (ref ReadOnlySpan <char> fileName) => Path.Join(path.AsSpan(), fileName);
IEnumerable <string> directories = includeDirectories
? _directoryCache.EnumerateDirectories(path, searchPattern, predicate, transform)
: Enumerable.Empty <string>();
IEnumerable <string> files = includeFiles
? _directoryCache.EnumerateFiles(path, searchPattern, predicate, transform)
: Enumerable.Empty <string>();
return(Enumerable.Concat(directories, files));
}