| // Copyright (c) 2016, 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. |
| |
| /// Collects definitions provided to the compiler via the `-D` flag. |
| /// |
| /// Environment variables can be used in the user code in two ways. From |
| /// conditional imports, and from `const String.fromEnvironment` and |
| /// other similar constructors. |
| class Environment { |
| /// An immutable map of environment variables. |
| final Map<String, String> definitions; |
| |
| Environment(Map<String, String> definitions) |
| : this.definitions = Map.unmodifiable(definitions); |
| } |