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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, 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 part of js_backend; | |
6 | |
7 /** | 5 /** |
8 * Assigns JavaScript identifiers to Dart variables, class-names and members. | 6 * Assigns JavaScript identifiers to Dart variables, class-names and members. |
9 */ | 7 */ |
10 class Namer { | 8 class Namer { |
11 final Compiler compiler; | 9 final Compiler compiler; |
12 | 10 |
13 static Set<String> _jsReserved = null; | 11 static Set<String> _jsReserved = null; |
14 Set<String> get jsReserved { | 12 Set<String> get jsReserved { |
15 if (_jsReserved == null) { | 13 if (_jsReserved == null) { |
16 _jsReserved = new Set<String>(); | 14 _jsReserved = new Set<String>(); |
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324 } | 322 } |
325 | 323 |
326 String safeName(String name) { | 324 String safeName(String name) { |
327 if (jsReserved.contains(name) || name.startsWith('\$')) { | 325 if (jsReserved.contains(name) || name.startsWith('\$')) { |
328 name = "\$$name"; | 326 name = "\$$name"; |
329 assert(!jsReserved.contains(name)); | 327 assert(!jsReserved.contains(name)); |
330 } | 328 } |
331 return name; | 329 return name; |
332 } | 330 } |
333 } | 331 } |
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