internal Task OnProjectChangedAsync <T>(
IDataProgressTrackerServiceRegistration registration,
ConfiguredProject activeConfiguredProject,
IProjectVersionedValue <T> update,
Func <IProjectVersionedValue <T>, bool> hasChange,
Action <IProjectVersionedValue <T>, IApplyChangesToWorkspaceContext, ContextState, CancellationToken> applyFunc)
{
return(ExecuteUnderLockAsync(ApplyProjectChangesUnderLockAsync, _tasksService.UnloadCancellationToken));
Task ApplyProjectChangesUnderLockAsync(CancellationToken cancellationToken)
{
// NOTE we cannot call CheckForInitialized here, as this method may be invoked during initialization
Assumes.NotNull(_contextAccessor);
Assumes.NotNull(_applyChangesToWorkspaceContext);
if (!hasChange(update))
{
// No change since the last update. We must still update operation progress, but can skip creating a batch.
UpdateProgressRegistration();
return(Task.CompletedTask);
}
return(ApplyInBatchAsync());
async Task ApplyInBatchAsync()
{
ContextState contextState = new(
isActiveEditorContext : _activeWorkspaceProjectContextTracker.IsActiveEditorContext(_contextAccessor.ContextId),
isActiveConfiguration : activeConfiguredProject == _project);
IWorkspaceProjectContext context = _contextAccessor.Context;
context.StartBatch();
try
{
applyFunc(update, _applyChangesToWorkspaceContext.Value, contextState, cancellationToken);
}
finally
{
await context.EndBatchAsync();
UpdateProgressRegistration();
}
}
void UpdateProgressRegistration()
{
// Notify operation progress that we've now processed these versions of our input, if they are
// up-to-date with the latest version that produced, then we no longer considered "in progress".
registration.NotifyOutputDataCalculated(update.DataSourceVersions);
}
}
}
private async Task <IWorkspaceProjectContext?> CreateProjectContextHandlingFaultAsync(ProjectContextInitData data, object?hostObject)
{
try
{
// Call into Roslyn to init language service for this project
IWorkspaceProjectContext context = await _workspaceProjectContextFactory.Value.CreateProjectContextAsync(
data.LanguageName,
data.WorkspaceProjectContextId,
data.ProjectFilePath,
data.ProjectGuid,
hostObject,
data.BinOutputPath,
data.AssemblyName,
CancellationToken.None);
context.StartBatch();
try
{
// Update additional properties within a batch to avoid thread pool starvation.
// https://github.com/dotnet/project-system/issues/8027
context.LastDesignTimeBuildSucceeded = false; // By default, turn off diagnostics until the first design time build succeeds for this project.
// Pass along any early approximation we have of the command line options
#pragma warning disable CS0618 // This was obsoleted in favor of the one that takes an array, but here just the string is easier; we'll un-Obsolete this API
context.SetOptions(data.CommandLineArgsForDesignTimeEvaluation);
#pragma warning restore CS0618 // Type or member is obsolete
}
finally
{
await context.EndBatchAsync();
}
return(context);
}
catch (Exception ex)
{
await _faultHandlerService.ReportFaultAsync(ex, _project, ProjectFaultSeverity.LimitedFunctionality);
}
return(null);
}
private async Task ApplyProjectChangesUnderLockAsync(ProjectChange change, WorkspaceContextHandlerType handlerType, CancellationToken cancellationToken)
{
// NOTE we cannot call CheckForInitialized here, as this method may be invoked during initialization
Assumes.NotNull(_contextAccessor);
IWorkspaceProjectContext context = _contextAccessor.Context;
bool isActiveEditorContext = _activeWorkspaceProjectContextTracker.IsActiveEditorContext(_contextAccessor.ContextId);
bool isActiveConfiguration = change.Project == _project;
var state = new ContextState(isActiveEditorContext, isActiveConfiguration);
context.StartBatch();
try
{
switch (handlerType)
{
case WorkspaceContextHandlerType.Evaluation:
await _applyChangesToWorkspaceContext !.Value.ApplyProjectEvaluationAsync(change.Subscription, state, cancellationToken);
break;
case WorkspaceContextHandlerType.ProjectBuild:
Assumes.NotNull(change.BuildSnapshot);
await _applyChangesToWorkspaceContext !.Value.ApplyProjectBuildAsync(change.Subscription, change.BuildSnapshot, state, cancellationToken);
break;
case WorkspaceContextHandlerType.SourceItems:
await _applyChangesToWorkspaceContext !.Value.ApplySourceItemsAsync(change.Subscription, state, cancellationToken);
break;
}
}
finally
{
await context.EndBatchAsync();
NotifyOutputDataCalculated(change.DataSourceVersions, handlerType);
}
}