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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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.library_loader; | 5 library dart2js.library_loader; |
6 | 6 |
7 import 'dart:async'; | 7 import 'dart:async'; |
8 | 8 |
9 import 'common/names.dart' show Uris; | 9 import 'common/names.dart' show Uris; |
10 import 'common/tasks.dart' show CompilerTask, Measurer; | 10 import 'common/tasks.dart' show CompilerTask, Measurer; |
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866 ir.Program program = new ir.Program(); | 866 ir.Program program = new ir.Program(); |
867 // Hack because the existing file has a terminating 0 and the | 867 // Hack because the existing file has a terminating 0 and the |
868 // BinaryBuilder doesn't expect that. | 868 // BinaryBuilder doesn't expect that. |
869 var bytes = new List<int>.from(script.file.slowUtf8ZeroTerminatedBytes()); | 869 var bytes = new List<int>.from(script.file.slowUtf8ZeroTerminatedBytes()); |
870 bytes.removeLast(); | 870 bytes.removeLast(); |
871 new BinaryBuilder(bytes).readProgram(program); | 871 new BinaryBuilder(bytes).readProgram(program); |
872 return measure(() { | 872 return measure(() { |
873 _worldBuilder = new KernelWorldBuilder(reporter, program); | 873 _worldBuilder = new KernelWorldBuilder(reporter, program); |
874 program.libraries.forEach((ir.Library library) => _allLoadedLibraries | 874 program.libraries.forEach((ir.Library library) => _allLoadedLibraries |
875 .add(_worldBuilder.lookupLibrary(library.importUri))); | 875 .add(_worldBuilder.lookupLibrary(library.importUri))); |
876 LibraryEntity rootLibrary = null; | 876 // TODO(efortuna): Handle `prgram.mainMethod == null` gracefully. |
877 if (program.mainMethod != null) { | |
878 rootLibrary = _worldBuilder | |
879 .lookupLibrary(program.mainMethod.enclosingLibrary.importUri); | |
880 } | |
881 return new _LoadedLibrariesAdapter( | 877 return new _LoadedLibrariesAdapter( |
882 rootLibrary, _allLoadedLibraries, _worldBuilder); | 878 _worldBuilder |
| 879 .lookupLibrary(program.mainMethod.enclosingLibrary.importUri), |
| 880 _allLoadedLibraries, |
| 881 _worldBuilder); |
883 }); | 882 }); |
884 }); | 883 }); |
885 } | 884 } |
886 | 885 |
887 KernelWorldBuilder get worldBuilder => _worldBuilder; | 886 KernelWorldBuilder get worldBuilder => _worldBuilder; |
888 | 887 |
889 void reset({bool reuseLibrary(LibraryElement library)}) { | 888 void reset({bool reuseLibrary(LibraryElement library)}) { |
890 throw new UnimplementedError('_DillLibraryLoaderTask.reset'); | 889 throw new UnimplementedError('_DillLibraryLoaderTask.reset'); |
891 } | 890 } |
892 | 891 |
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1678 } | 1677 } |
1679 | 1678 |
1680 /// API used by the library loader to synchronously scan a library or | 1679 /// API used by the library loader to synchronously scan a library or |
1681 /// compilation unit and ensure that their library tags are computed. | 1680 /// compilation unit and ensure that their library tags are computed. |
1682 abstract class ElementScanner { | 1681 abstract class ElementScanner { |
1683 void scanLibrary(LibraryElement library); | 1682 void scanLibrary(LibraryElement library); |
1684 void scanUnit(CompilationUnitElement unit); | 1683 void scanUnit(CompilationUnitElement unit); |
1685 } | 1684 } |
1686 | 1685 |
1687 const _reuseLibrarySubtaskName = "Reuse library"; | 1686 const _reuseLibrarySubtaskName = "Reuse library"; |
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