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Issue 690103004: Move dart2js from sdk/lib/_internal/compiler to pkg/compiler (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 1 month ago
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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2014, 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.util.emptyset; 5 library dart2js.util.emptyset;
6 6
7 import 'dart:collection' show IterableBase; 7 import 'dart:collection' show IterableBase;
8 8
9 class ImmutableEmptySet<E> extends IterableBase<E> implements Set<E> { 9 class ImmutableEmptySet<E> extends IterableBase<E> implements Set<E> {
10 const ImmutableEmptySet(); 10 const ImmutableEmptySet();
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35 Set<E> difference(Set<E> other) => this; 35 Set<E> difference(Set<E> other) => this;
36 Set<E> toSet() => new Set(); 36 Set<E> toSet() => new Set();
37 } 37 }
38 38
39 class _EmptySetIterator<E> implements Iterator<E> { 39 class _EmptySetIterator<E> implements Iterator<E> {
40 const _EmptySetIterator(); 40 const _EmptySetIterator();
41 41
42 E get current => null; 42 E get current => null;
43 bool moveNext() => false; 43 bool moveNext() => false;
44 } 44 }
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