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| 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 |
| 3 // BSD-style license that can be found in the LICENSE file. |
| 4 |
| 5 // VM-specific implementation of the dart:mirrors library. |
| 6 |
| 7 class _IsolateMirrorImpl implements IsolateMirror { |
| 8 _IsolateMirrorImpl(this.port, this.debugName) {} |
| 9 |
| 10 final SendPort port; |
| 11 final String debugName; |
| 12 |
| 13 static buildCommand(List command) { |
| 14 command.add('isolateMirrorOf'); |
| 15 } |
| 16 |
| 17 static buildResponse(Map response) native "IsolateMirrorImpl_buildResponse"; |
| 18 |
| 19 static processResponse(SendPort port, Map response) { |
| 20 if (response['ok']) { |
| 21 return new _IsolateMirrorImpl(port, response['debugName']); |
| 22 } |
| 23 return null; |
| 24 } |
| 25 } |
| 26 |
| 27 class _Mirrors { |
| 28 static Future<IsolateMirror> isolateMirrorOf(SendPort port) { |
| 29 Completer<IsolateMirror> completer = new Completer<IsolateMirror>(); |
| 30 List command = new List(); |
| 31 _IsolateMirrorImpl.buildCommand(command); |
| 32 call(port, command).receive((message, _) { |
| 33 completer.complete(_IsolateMirrorImpl.processResponse(port, message)); |
| 34 }); |
| 35 return completer.future; |
| 36 } |
| 37 |
| 38 static void processCommand(var message, SendPort replyTo) { |
| 39 Map response = new Map(); |
| 40 if (message[0] == 'isolateMirrorOf') { |
| 41 _IsolateMirrorImpl.buildResponse(response); |
| 42 } else { |
| 43 response['ok'] = false; |
| 44 } |
| 45 replyTo.send(response); |
| 46 } |
| 47 |
| 48 static ReceivePort call(SendPort port, Object message) { |
| 49 ReceivePort rp = new ReceivePort.singleShot(); |
| 50 if (!send(port, message, rp.toSendPort())) { |
| 51 throw new Exception("Unable to send mirror request to port $port"); |
| 52 } |
| 53 return rp; |
| 54 } |
| 55 |
| 56 static bool send(SendPort port, Object message, SendPort replyTo) |
| 57 native "Mirrors_send"; |
| 58 } |
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