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Issue 2451623006: Reland "Merge more Kernel infrastructure from kernel_sdk SDK fork." (Closed)
Patch Set: Fix Created 4 years, 1 month ago
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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 // Dart core library. 5 // Dart core library.
6 6
7 @patch class Null { 7 @patch class Null {
8
9 factory Null._uninstantiable() {
10 throw new UnsupportedError("class Null cannot be instantiated");
11 }
12
13 static const _HASH_CODE = 2011; // The year Dart was announced and a prime. 8 static const _HASH_CODE = 2011; // The year Dart was announced and a prime.
14 int get hashCode => _HASH_CODE; 9 int get hashCode => _HASH_CODE;
15 int get _identityHashCode => _HASH_CODE; 10 int get _identityHashCode => _HASH_CODE;
16
17 String toString() => 'null';
18 } 11 }
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