static void UpdateExtensions ()
{
if (!Runtime.Initialized) {
fileSystemChain = defaultExtension;
return;
}
var extensions = AddinManager.GetExtensionObjects (addinFileSystemExtensionPath, typeof(FileSystemExtension)).Cast<FileSystemExtension> ().ToArray ();
for (int n=0; n<extensions.Length - 1; n++) {
extensions [n].Next = extensions [n + 1];
}
if (extensions.Length > 0) {
extensions [extensions.Length - 1].Next = defaultExtension;
fileSystemChain = extensions [0];
} else {
fileSystemChain = defaultExtension;
}
}