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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 scanner; | 5 library dart2js.parser.task; |
| 6 |
| 7 import '../common/tasks.dart' show |
| 8 CompilerTask; |
| 9 import '../compiler.dart' show |
| 10 Compiler; |
| 11 import '../diagnostics/invariant.dart' show |
| 12 invariant; |
| 13 import '../elements/modelx.dart' show |
| 14 ElementX; |
| 15 import '../tree/tree.dart' show |
| 16 Node; |
| 17 |
| 18 import 'listener.dart' show |
| 19 NodeListener, |
| 20 ParserError; |
| 21 import 'parser.dart' show |
| 22 Parser; |
| 23 import 'token.dart' show |
| 24 Token; |
6 | 25 |
7 class ParserTask extends CompilerTask { | 26 class ParserTask extends CompilerTask { |
8 ParserTask(Compiler compiler) : super(compiler); | 27 ParserTask(Compiler compiler) : super(compiler); |
9 String get name => 'Parser'; | 28 String get name => 'Parser'; |
10 | 29 |
11 Node parse(ElementX element) { | 30 Node parse(ElementX element) { |
12 return measure(() => element.parseNode(compiler)); | 31 return measure(() => element.parseNode(compiler)); |
13 } | 32 } |
14 | 33 |
15 Node parseCompilationUnit(Token token) { | 34 Node parseCompilationUnit(Token token) { |
16 return measure(() { | 35 return measure(() { |
17 NodeListener listener = new NodeListener(compiler, null); | 36 NodeListener listener = new NodeListener(compiler, null); |
18 Parser parser = new Parser(listener); | 37 Parser parser = new Parser(listener); |
19 try { | 38 try { |
20 parser.parseUnit(token); | 39 parser.parseUnit(token); |
21 } on ParserError catch(_) { | 40 } on ParserError catch(_) { |
22 assert(invariant(token, compiler.compilationFailed)); | 41 assert(invariant(token, compiler.compilationFailed)); |
23 return listener.makeNodeList(0, null, null, '\n'); | 42 return listener.makeNodeList(0, null, null, '\n'); |
24 } | 43 } |
25 Node result = listener.popNode(); | 44 Node result = listener.popNode(); |
26 assert(listener.nodes.isEmpty); | 45 assert(listener.nodes.isEmpty); |
27 return result; | 46 return result; |
28 }); | 47 }); |
29 } | 48 } |
30 } | 49 } |
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