// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

library dart.test.symbol_map_helper;

// TODO(ahe): Update map literals to avoid this method.
Map<Symbol, dynamic>? symbolToStringMap(Map<String, dynamic> map) {
  if (map == null) return null;
  Map<Symbol, dynamic> result = new Map<Symbol, dynamic>();
  map.forEach((name, value) {
    result[new Symbol(name)] = value;
  });
  return result;
}
