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Side by Side Diff: pkg/compiler/lib/src/scanner/parser_task.dart

Issue 1315483006: Split scannerlib.dart into several libraries. (Closed) Base URL: https://github.com/dart-lang/sdk.git@master
Patch Set: Update try tests Created 5 years, 3 months ago
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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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