| // Copyright (c) 2023, 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. |
| |
| import 'ir.dart'; |
| |
| mixin Indexable { |
| static int _globalId = 0; |
| late final int _id = _globalId++; |
| |
| FinalizableIndex get finalizableIndex; |
| |
| /// [index] will be valid only after finalization, otherwise invoking this |
| /// getter will throw. |
| int get index => finalizableIndex.value; |
| |
| /// [name] will always be valid, though it may not be unique and should only |
| /// be used for debugging. Subclasses should override [name] when they can |
| /// provide a better alternative. |
| String get name => '$_id'; |
| } |
