openSync method

@override SyncStorageFile openSync(String name, { bool create = true, })

Opens (and by default creates) the named file.

Implementation

@override
SyncStorageFile openSync(String name, {bool create = true}) {
  final existing = _files[name];
  if (existing != null) {
    if (!existing.isClosed) return existing;
    // Closing a file must not lose its bytes: reopen over a fresh handle
    // that starts with the same contents, mirroring a real filesystem.
    final restored = MemoryStorageFile(existing.bytes.length + 64);
    restored.writeAllSync(existing.bytes);
    _files[name] = restored;
    return restored;
  }
  if (!create) throw StateError('no such file: $name');
  final file = MemoryStorageFile();
  _files[name] = file;
  return file;
}