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C# IAsynchronousOperationListener.BeginAsyncOperation方法代码示例

本文整理汇总了C#中IAsynchronousOperationListener.BeginAsyncOperation方法的典型用法代码示例。如果您正苦于以下问题:C# IAsynchronousOperationListener.BeginAsyncOperation方法的具体用法?C# IAsynchronousOperationListener.BeginAsyncOperation怎么用?C# IAsynchronousOperationListener.BeginAsyncOperation使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在IAsynchronousOperationListener的用法示例。


在下文中一共展示了IAsynchronousOperationListener.BeginAsyncOperation方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: TrackingSession

            public TrackingSession(StateMachine stateMachine, SnapshotSpan snapshotSpan, IAsynchronousOperationListener asyncListener)
            {
                AssertIsForeground();

                _asyncListener = asyncListener;
                _trackingSpan = snapshotSpan.Snapshot.CreateTrackingSpan(snapshotSpan.Span, SpanTrackingMode.EdgeInclusive);
                _cancellationTokenSource = new CancellationTokenSource();
                _cancellationToken = _cancellationTokenSource.Token;

                if (snapshotSpan.Length > 0)
                {
                    // If the snapshotSpan is nonempty, then the session began with a change that
                    // was touching a word. Asynchronously determine whether that word was a
                    // renamable identifier. If it is, alert the state machine so it can trigger
                    // tagging.

                    _originalName = snapshotSpan.GetText();
                    _isRenamableIdentifierTask = Task.Factory.SafeStartNewFromAsync(
                        () => DetermineIfRenamableIdentifierAsync(snapshotSpan, initialCheck: true),
                        _cancellationToken,
                        TaskScheduler.Default);

                    var asyncToken = _asyncListener.BeginAsyncOperation(GetType().Name + ".UpdateTrackingSessionAfterIsRenamableIdentifierTask");

                    _isRenamableIdentifierTask.SafeContinueWith(
                        t => stateMachine.UpdateTrackingSessionIfRenamable(),
                        _cancellationToken,
                       TaskContinuationOptions.OnlyOnRanToCompletion,
                       ForegroundTaskScheduler).CompletesAsyncOperation(asyncToken);

                    QueueUpdateToStateMachine(stateMachine, _isRenamableIdentifierTask);
                }
                else
                {
                    // If the snapshotSpan is empty, that means text was added in a location that is
                    // not touching an existing word, which happens a fair amount when writing new
                    // code. In this case we already know that the user is not renaming an
                    // identifier.

                    _isRenamableIdentifierTask = s_notRenamableTask;
                }
            }
开发者ID:GloryChou,项目名称:roslyn,代码行数:42,代码来源:RenameTrackingTaggerProvider.TrackingSession.cs

示例2: EventHookupSession

            public EventHookupSession(
                EventHookupSessionManager eventHookupSessionManager,
                EventHookupCommandHandler commandHandler,
                ITextView textView,
                ITextBuffer subjectBuffer,
                IAsynchronousOperationListener asyncListener,
                Mutex testSessionHookupMutex)
            {
                AssertIsForeground();
                _cancellationTokenSource = new CancellationTokenSource();
                _textView = textView;
                _subjectBuffer = subjectBuffer;
                this.TESTSessionHookupMutex = testSessionHookupMutex;

                var document = textView.TextSnapshot.GetOpenDocumentInCurrentContextWithChanges();
                if (document != null && document.Project.Solution.Workspace.CanApplyChange(ApplyChangesKind.ChangeDocument))
                {
                    var position = textView.GetCaretPoint(subjectBuffer).Value.Position;
                    _trackingPoint = textView.TextSnapshot.CreateTrackingPoint(position, PointTrackingMode.Negative);
                    _trackingSpan = textView.TextSnapshot.CreateTrackingSpan(new Span(position, 1), SpanTrackingMode.EdgeInclusive);

                    var asyncToken = asyncListener.BeginAsyncOperation(GetType().Name + ".Start");

                    this.GetEventNameTask = Task.Factory.SafeStartNewFromAsync(
                        () => DetermineIfEventHookupAndGetHandlerNameAsync(document, position, _cancellationTokenSource.Token),
                        _cancellationTokenSource.Token,
                        TaskScheduler.Default);

                    var continuedTask = this.GetEventNameTask.SafeContinueWith(t =>
                        {
                            AssertIsForeground();
                            if (t.Result != null)
                            {
                                commandHandler.EventHookupSessionManager.EventHookupFoundInSession(this);
                            }
                        },
                        _cancellationTokenSource.Token,
                        TaskContinuationOptions.OnlyOnRanToCompletion,
                        ForegroundThreadAffinitizedObject.CurrentForegroundThreadData.TaskScheduler);

                    continuedTask.CompletesAsyncOperation(asyncToken);
                }
                else
                {
                    _trackingPoint = textView.TextSnapshot.CreateTrackingPoint(0, PointTrackingMode.Negative);
                    _trackingSpan = textView.TextSnapshot.CreateTrackingSpan(new Span(), SpanTrackingMode.EdgeInclusive);
                    this.GetEventNameTask = SpecializedTasks.Default<string>();
                    eventHookupSessionManager.CancelAndDismissExistingSessions();
                }
            }
开发者ID:CAPCHIK,项目名称:roslyn,代码行数:50,代码来源:EventHookupSessionManager_EventHookupSession.cs


注:本文中的IAsynchronousOperationListener.BeginAsyncOperation方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。