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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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 type_mask_test_helper; | 5 library type_mask_test_helper; |
6 | 6 |
7 import 'package:compiler/src/types/types.dart'; | 7 import 'package:compiler/src/types/types.dart'; |
8 import 'package:compiler/src/dart2jslib.dart' | 8 import 'package:compiler/src/compiler.dart' |
9 show Compiler; | 9 show Compiler; |
10 | 10 |
11 TypeMask simplify(TypeMask mask, Compiler compiler) { | 11 TypeMask simplify(TypeMask mask, Compiler compiler) { |
12 if (mask is ForwardingTypeMask) { | 12 if (mask is ForwardingTypeMask) { |
13 return simplify(mask.forwardTo, compiler); | 13 return simplify(mask.forwardTo, compiler); |
14 } else if (mask is UnionTypeMask) { | 14 } else if (mask is UnionTypeMask) { |
15 return UnionTypeMask.flatten(mask.disjointMasks, compiler.world); | 15 return UnionTypeMask.flatten(mask.disjointMasks, compiler.world); |
16 } else { | 16 } else { |
17 return mask; | 17 return mask; |
18 } | 18 } |
19 } | 19 } |
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