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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 // Utilities for building JS ASTs at runtime. Contains a builder class | 5 // Utilities for building JS ASTs at runtime. Contains a builder class |
6 // and a parser that parses part of the language. | 6 // and a parser that parses part of the language. |
7 | 7 |
8 part of js; | 8 part of js_ast; |
9 | 9 |
10 | 10 |
11 /** | 11 /** |
12 * Global template manager. We should aim to have a fixed number of | 12 * Global template manager. We should aim to have a fixed number of |
13 * templates. This implies that we do not use js('xxx') to parse text that is | 13 * templates. This implies that we do not use js('xxx') to parse text that is |
14 * constructed from values that depend on names in the Dart program. | 14 * constructed from values that depend on names in the Dart program. |
15 * | 15 * |
16 * TODO(sra): Find the remaining places where js('xxx') used to parse an | 16 * TODO(sra): Find the remaining places where js('xxx') used to parse an |
17 * unbounded number of expression, or institute a cache policy. | 17 * unbounded number of expression, or institute a cache policy. |
18 */ | 18 */ |
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1327 Catch parseCatch() { | 1327 Catch parseCatch() { |
1328 expectCategory(LPAREN); | 1328 expectCategory(LPAREN); |
1329 String identifier = lastToken; | 1329 String identifier = lastToken; |
1330 expectCategory(ALPHA); | 1330 expectCategory(ALPHA); |
1331 expectCategory(RPAREN); | 1331 expectCategory(RPAREN); |
1332 expectCategory(LBRACE); | 1332 expectCategory(LBRACE); |
1333 Block body = parseBlock(); | 1333 Block body = parseBlock(); |
1334 return new Catch(new VariableDeclaration(identifier), body); | 1334 return new Catch(new VariableDeclaration(identifier), body); |
1335 } | 1335 } |
1336 } | 1336 } |
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