| // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| library vm_trace; |
| |
| import 'frame.dart'; |
| import 'utils.dart'; |
| |
| /// An implementation of [StackTrace] that emulates the behavior of the VM's |
| /// implementation. |
| /// |
| /// In particular, when [toString] is called, this returns a string in the VM's |
| /// stack trace format. |
| class VMTrace implements StackTrace { |
| /// The stack frames that comprise this stack trace. |
| final List<Frame> frames; |
| |
| VMTrace(this.frames); |
| |
| String toString() { |
| var i = 1; |
| return frames.map((frame) { |
| var number = padRight("#${i++}", 8); |
| var member = frame.member |
| .replaceAllMapped(new RegExp(r"[^.]+\.<async>"), |
| (match) => "${match[1]}.<${match[1]}_async_body>") |
| .replaceAll("<fn>", "<anonymous closure>"); |
| var line = frame.line == null ? 0 : frame.line; |
| var column = frame.column == null ? 0 : frame.column; |
| return "$number$member (${frame.uri}:$line:$column)\n"; |
| }).join(); |
| } |
| } |