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