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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 library lazy_trace; | |
6 | |
7 import 'frame.dart'; | 5 import 'frame.dart'; |
8 import 'trace.dart'; | 6 import 'trace.dart'; |
9 | 7 |
10 /// A thunk for lazily constructing a [Trace]. | 8 /// A thunk for lazily constructing a [Trace]. |
11 typedef Trace TraceThunk(); | 9 typedef Trace TraceThunk(); |
12 | 10 |
13 /// A wrapper around a [TraceThunk]. This works around issue 9579 by avoiding | 11 /// A wrapper around a [TraceThunk]. This works around issue 9579 by avoiding |
14 /// the conversion of native [StackTrace]s to strings until it's absolutely | 12 /// the conversion of native [StackTrace]s to strings until it's absolutely |
15 /// necessary. | 13 /// necessary. |
16 class LazyTrace implements Trace { | 14 class LazyTrace implements Trace { |
(...skipping 10 matching lines...) Expand all Loading... |
27 List<Frame> get frames => _trace.frames; | 25 List<Frame> get frames => _trace.frames; |
28 StackTrace get vmTrace => _trace.vmTrace; | 26 StackTrace get vmTrace => _trace.vmTrace; |
29 Trace get terse => new LazyTrace(() => _trace.terse); | 27 Trace get terse => new LazyTrace(() => _trace.terse); |
30 Trace foldFrames(bool predicate(Frame frame), {bool terse: false}) => | 28 Trace foldFrames(bool predicate(Frame frame), {bool terse: false}) => |
31 new LazyTrace(() => _trace.foldFrames(predicate, terse: terse)); | 29 new LazyTrace(() => _trace.foldFrames(predicate, terse: terse)); |
32 String toString() => _trace.toString(); | 30 String toString() => _trace.toString(); |
33 | 31 |
34 // Work around issue 14075. | 32 // Work around issue 14075. |
35 set frames(_) => throw new UnimplementedError(); | 33 set frames(_) => throw new UnimplementedError(); |
36 } | 34 } |
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