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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 library dart2js.world.class_set; | 5 library dart2js.world.class_set; |
6 | 6 |
7 import 'dart:collection' show IterableBase; | 7 import 'dart:collection' show IterableBase; |
8 | 8 |
9 import '../elements/elements.dart' show ClassElement; | 9 import '../elements/elements.dart' show ClassElement; |
10 import '../util/enumset.dart' show EnumSet; | 10 import '../util/enumset.dart' show EnumSet; |
11 import '../util/util.dart' show Link; | 11 import '../util/util.dart' show Link; |
12 | 12 |
13 /// Enum for the different kinds of instantiation of a class. | 13 /// Enum for the different kinds of instantiation of a class. |
14 enum Instantiation { | 14 enum Instantiation { |
15 UNINSTANTIATED, | 15 UNINSTANTIATED, |
16 DIRECTLY_INSTANTIATED, | 16 DIRECTLY_INSTANTIATED, |
17 INDIRECTLY_INSTANTIATED, | 17 INDIRECTLY_INSTANTIATED, |
18 } | 18 } |
19 | 19 |
20 /// Node for [cls] in a tree forming the subclass relation of [ClassElement]s. | 20 /// Node for [cls] in a tree forming the subclass relation of [ClassElement]s. |
21 /// | 21 /// |
22 /// This is used by the [ClassWorld] to perform queries on subclass and subtype | 22 /// This is used by the [ClosedWorld] to perform queries on subclass and subtype |
23 /// relations. | 23 /// relations. |
24 /// | 24 /// |
25 /// For this class hierarchy: | 25 /// For this class hierarchy: |
26 /// | 26 /// |
27 /// class A {} | 27 /// class A {} |
28 /// class B extends A {} | 28 /// class B extends A {} |
29 /// class C extends A {} | 29 /// class C extends A {} |
30 /// class D extends B {} | 30 /// class D extends B {} |
31 /// class E extends D {} | 31 /// class E extends D {} |
32 /// | 32 /// |
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850 STOP, | 850 STOP, |
851 | 851 |
852 /// Iteration skips the subclasses of the current class. | 852 /// Iteration skips the subclasses of the current class. |
853 SKIP_SUBCLASSES, | 853 SKIP_SUBCLASSES, |
854 } | 854 } |
855 | 855 |
856 /// Visiting function used for the `forEachX` functions of [ClassHierarchyNode] | 856 /// Visiting function used for the `forEachX` functions of [ClassHierarchyNode] |
857 /// and [ClassSet]. The return value controls the continued iteration. If `null` | 857 /// and [ClassSet]. The return value controls the continued iteration. If `null` |
858 /// is returned, iteration continues to the end. | 858 /// is returned, iteration continues to the end. |
859 typedef IterationStep ForEachFunction(ClassElement cls); | 859 typedef IterationStep ForEachFunction(ClassElement cls); |
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