Revert "Revert "Send DAP events through DDS"" - only check for event handler when DDS URI is also set.

Original change reverted due to test failure: https://github.com/dart-lang/sdk/issues/43743#issuecomment-1601278402

This reverts commit 02b10e1321.

Change-Id: Idb2cbffe18342c76d0cc062e5855c10a6df0e8f1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/310780
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Helin Shiah <helinx@google.com>

pkg/dds/CHANGELOG.md

@@ -6,6 +6,7 @@
 - [DAP] Fixed an issue that could leave breakpoints unresolved when adding/removing other breakpoints in a file.
 - Fixed a bug that was preventing clients from receiving `IsolateReload` events
   (see https://dartbug.com/49491).
+- Added notifications for DAP events.
 
 # 2.9.0
 - Updated DDS protocol to version 1.6.

pkg/dds/lib/src/dap/adapters/dds_hosted_adapter.dart

@@ -45,6 +45,8 @@ class DdsHostedAdapter extends DartDebugAdapter<DartLaunchRequestArguments,
   @override
   bool get terminateOnVmServiceClose => true;
 
+  final _dapEventsController = StreamController<Event>();
+
   @override
   Future<void> debuggerConnected(vm.VM vmInfo) async {}
 
@@ -121,4 +123,13 @@ class DdsHostedAdapter extends DartDebugAdapter<DartLaunchRequestArguments,
       throw potentialException;
     }
   }
+
+  @override
+  void sendEventToChannel(Event event) {
+    _dapEventsController.add(event);
+  }
+
+  void setEventHandler(void Function(Event) eventHandler) {
+    _dapEventsController.stream.listen(eventHandler);
+  }
 }

pkg/dds/lib/src/dap/base_debug_adapter.dart

@@ -205,6 +205,10 @@ abstract class BaseDebugAdapter<TLaunchArgs extends LaunchRequestArguments,
       event: eventType ?? eventTypes[body.runtimeType]!,
       body: body,
     );
+    sendEventToChannel(event);
+  }
+
+  void sendEventToChannel(Event event) {
     _channel.sendEvent(event);
   }
 

pkg/dds/lib/src/dap_handler.dart

@@ -3,6 +3,8 @@
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:async';
+
+import 'package:dds_service_extensions/dap.dart';
 import 'package:json_rpc_2/json_rpc_2.dart' as json_rpc;
 
 import '../dap.dart';
@@ -41,8 +43,20 @@ class DapHandler {
     };
   }
 
+  _handleEvent(Event event) {
+    dds.streamManager.streamNotify(DapEventStreams.kDAP, {
+      'streamId': DapEventStreams.kDAP,
+      'event': {
+        'kind': DapEventKind.kDAPEvent,
+        'timestamp': DateTime.now().millisecondsSinceEpoch,
+        'dapData': event,
+      },
+    });
+  }
+
   Future<void> _startAdapter(DdsHostedAdapter adapter) async {
     adapter.ddsUri = dds.uri;
+    adapter.setEventHandler(_handleEvent);
 
     // TODO(helin24): Most likely we'll want the client to do these
     // initialization steps so that clients can differentiate capabilities. This

pkg/dds/pubspec.yaml

@@ -13,7 +13,7 @@ dependencies:
   async: ^2.4.1
   browser_launcher: ^1.0.0
   collection: ^1.15.0
-  dds_service_extensions: ^1.3.0
+  dds_service_extensions: ^1.6.0
   dap: ^1.1.0
   devtools_shared: ^2.14.1
   http_multi_server: ^3.0.0
@@ -27,7 +27,7 @@ dependencies:
   sse: ^4.0.0
   stack_trace: ^1.10.0
   stream_channel: ^2.0.0
-  vm_service: '>=11.0.0 <12.0.0'
+  vm_service: '>=11.7.2 <12.0.0'
   web_socket_channel: ^2.0.0
 
 # We use 'any' version constraints here as we get our package versions from

pkg/dds/test/dap_handler_test.dart

@@ -7,7 +7,7 @@ import 'dart:io';
 
 import 'package:dap/dap.dart';
 import 'package:dds/dds.dart';
-import 'package:dds_service_extensions/src/dap.dart';
+import 'package:dds_service_extensions/dap.dart';
 import 'package:test/test.dart';
 import 'package:vm_service/vm_service_io.dart';
 

pkg/dds_service_extensions/CHANGELOG.md

@@ -1,3 +1,6 @@
+## 1.6.0
+- Made DAP extensions methods accessible in lib.
+
 ## 1.5.0
 - Added `DdsExtension.postEvent`.
 

pkg/dds_service_extensions/lib/dap.dart

@@ -29,6 +29,8 @@ extension DapExtension on vm.VmService {
     vm.addTypeFactory('DapResponse', DapResponse.parse);
     _factoriesRegistered = true;
   }
+
+  Stream<vm.Event> get onDAPEvent => onEvent(DapEventStreams.kDAP);
 }
 
 class DapResponse extends vm.Response {
@@ -50,3 +52,19 @@ class DapResponse extends vm.Response {
 
   final dap.Response dapResponse;
 }
+
+extension DapEvents on vm.Event {
+  dap.Event get dapData {
+    assert(json != null);
+    return dap.Event.fromJson(json!['dapData']);
+  }
+}
+
+abstract class DapEventStreams extends vm.EventStreams {
+  static const String kDAP = 'DAP';
+}
+
+abstract class DapEventKind extends vm.EventKind {
+  /// Notification that a DAP event occurred.
+  static const String kDAPEvent = 'DAPEvent';
+}

pkg/dds_service_extensions/pubspec.yaml

@@ -1,5 +1,5 @@
 name: dds_service_extensions
-version: 1.5.0
+version: 1.6.0
 description: >-
   Extension methods for `package:vm_service`, used to make requests a
   Dart Development Service (DDS) instance.
@@ -11,7 +11,7 @@ environment:
 dependencies:
   async: ^2.4.1
   dap: ^1.0.0
-  vm_service: ^11.0.0
+  vm_service: ^11.7.2
 
 # We use 'any' version constraints here as we get our package versions from
 # the dart-lang/sdk repo's DEPS file. Note that this is a special case; the

pkg/vm_service/CHANGELOG.md

@@ -1,3 +1,6 @@
+## 11.7.2
+- Make Event classes abstract to permit `dap` event stream extensions.
+
 ## 11.7.1
 - Expose RPC error codes that were defined in `package:dds`.
 

pkg/vm_service/lib/src/vm_service.dart

@@ -2834,9 +2834,7 @@ class ErrorKind {
 }
 
 /// An enum of available event streams.
-class EventStreams {
-  EventStreams._();
-
+abstract class EventStreams {
   static const String kVM = 'VM';
   static const String kIsolate = 'Isolate';
   static const String kDebug = 'Debug';
@@ -2853,9 +2851,7 @@ class EventStreams {
 
 /// Adding new values to `EventKind` is considered a backwards compatible
 /// change. Clients should ignore unrecognized events.
-class EventKind {
-  EventKind._();
-
+abstract class EventKind {
   /// Notification that VM identifying information has changed. Currently used
   /// to notify of changes to the VM debugging name via setVMName.
   static const String kVMUpdate = 'VMUpdate';

pkg/vm_service/pubspec.yaml

@@ -1,5 +1,5 @@
 name: vm_service
-version: 11.7.1
+version: 11.7.2
 description: >-
   A library to communicate with a service implementing the Dart VM
   service protocol.