private async Task AddSubscriptionsAsync(AggregateWorkspaceProjectContext newProjectContext)
{
Requires.NotNull(newProjectContext, nameof(newProjectContext));
await _commonServices.ThreadingService.SwitchToUIThread();
await _tasksService.LoadedProjectAsync(() =>
{
IEnumerable <string> watchedEvaluationRules = _languageServiceHandlerManager.GetWatchedRules(RuleHandlerType.Evaluation);
IEnumerable <string> watchedDesignTimeBuildRules = _languageServiceHandlerManager.GetWatchedRules(RuleHandlerType.DesignTimeBuild);
foreach (ConfiguredProject configuredProject in newProjectContext.InnerConfiguredProjects)
{
if (_projectConfigurationsWithSubscriptions.Contains(configuredProject.ProjectConfiguration))
{
continue;
}
_designTimeBuildSubscriptionLinks.Add(configuredProject.Services.ProjectSubscription.JointRuleSource.SourceBlock.LinkTo(
new ActionBlock <IProjectVersionedValue <IProjectSubscriptionUpdate> >(e => OnProjectChangedCoreAsync(e, RuleHandlerType.DesignTimeBuild)),
ruleNames: watchedDesignTimeBuildRules, suppressVersionOnlyUpdates: true));
_evaluationSubscriptionLinks.Add(configuredProject.Services.ProjectSubscription.ProjectRuleSource.SourceBlock.LinkTo(
new ActionBlock <IProjectVersionedValue <IProjectSubscriptionUpdate> >(e => OnProjectChangedCoreAsync(e, RuleHandlerType.Evaluation)),
ruleNames: watchedEvaluationRules, suppressVersionOnlyUpdates: true));
_projectConfigurationsWithSubscriptions.Add(configuredProject.ProjectConfiguration);
}
return(Task.CompletedTask);
});
}
private async Task AddSubscriptionsAsync(AggregateWorkspaceProjectContext newProjectContext)
{
Requires.NotNull(newProjectContext, nameof(newProjectContext));
await _commonServices.ThreadingService.SwitchToUIThread();
using (_tasksService.LoadedProject())
{
var watchedEvaluationRules = GetWatchedRules(RuleHandlerType.Evaluation);
var watchedDesignTimeBuildRules = GetWatchedRules(RuleHandlerType.DesignTimeBuild);
foreach (var configuredProject in newProjectContext.InnerConfiguredProjects)
{
if (_projectConfigurationsWithSubscriptions.Contains(configuredProject.ProjectConfiguration))
{
continue;
}
_designTimeBuildSubscriptionLinks.Add(configuredProject.Services.ProjectSubscription.JointRuleSource.SourceBlock.LinkTo(
new ActionBlock <IProjectVersionedValue <IProjectSubscriptionUpdate> >(e => OnProjectChangedCoreAsync(e, RuleHandlerType.DesignTimeBuild)),
ruleNames: watchedDesignTimeBuildRules.Union(watchedEvaluationRules), suppressVersionOnlyUpdates: true));
_evaluationSubscriptionLinks.Add(configuredProject.Services.ProjectSubscription.ProjectRuleSource.SourceBlock.LinkTo(
new ActionBlock <IProjectVersionedValue <IProjectSubscriptionUpdate> >(e => OnProjectChangedCoreAsync(e, RuleHandlerType.Evaluation)),
ruleNames: watchedEvaluationRules, suppressVersionOnlyUpdates: true));
_projectConfigurationsWithSubscriptions.Add(configuredProject.ProjectConfiguration);
}
}
}
private async Task DisposeAggregateProjectContextAsync(AggregateWorkspaceProjectContext projectContext)
{
await _contextProvider.Value.ReleaseProjectContextAsync(projectContext).ConfigureAwait(false);
foreach (IWorkspaceProjectContext innerContext in projectContext.DisposedInnerProjectContexts)
{
_languageServiceHandlerManager.OnContextReleased(innerContext);
}
}
/// <summary>
/// Ensures that <see cref="_currentAggregateProjectContext"/> is updated for the latest TargetFrameworks from the project properties
/// and returns this value.
/// </summary>
private async Task <AggregateWorkspaceProjectContext> UpdateProjectContextAsync()
{
// Ensure that only single thread is attempting to create a project context.
AggregateWorkspaceProjectContext previousContextToDispose = null;
using (await _gate.DisposableWaitAsync().ConfigureAwait(false))
{
// Check if we have already computed the project context.
if (_currentAggregateProjectContext != null)
{
// For non-cross targeting projects, we can use the current project context.
// For cross-targeting projects, we need to verify that the TargetFrameworks for the current project context matches latest TargetFrameworks project property value.
// If not, we create a new one and dispose the current one.
if (!_currentAggregateProjectContext.IsCrossTargeting)
{
return(_currentAggregateProjectContext);
}
var projectProperties = await _commonServices.ActiveConfiguredProjectProperties.GetConfigurationGeneralPropertiesAsync().ConfigureAwait(false);
var targetFrameworks = (string)await projectProperties.TargetFrameworks.GetValueAsync().ConfigureAwait(false);
if (_currentAggregateProjectContext.HasMatchingTargetFrameworks(targetFrameworks))
{
return(_currentAggregateProjectContext);
}
previousContextToDispose = _currentAggregateProjectContext;
}
// Force refresh the CPS active project configuration (needs UI thread).
await _commonServices.ThreadingService.SwitchToUIThread();
await _activeProjectConfigurationRefreshService.RefreshActiveProjectConfigurationAsync().ConfigureAwait(false);
// Create new project context.
_currentAggregateProjectContext = await _contextProvider.Value.CreateProjectContextAsync().ConfigureAwait(false);
// Dispose the old project context, if one exists.
if (previousContextToDispose != null)
{
await _contextProvider.Value.ReleaseProjectContextAsync(previousContextToDispose).ConfigureAwait(false);
foreach (var innerContext in previousContextToDispose.DisposedInnerProjectContexts)
{
foreach (var handler in Handlers)
{
await handler.Value.OnContextReleasedAsync(innerContext).ConfigureAwait(false);
}
}
}
return(_currentAggregateProjectContext);
}
}
private async Task UpdateProjectContextAndSubscriptionsAsync()
{
AggregateWorkspaceProjectContext previousProjectContext = _currentAggregateProjectContext;
AggregateWorkspaceProjectContext newProjectContext = await UpdateProjectContextAsync().ConfigureAwait(false);
if (previousProjectContext != newProjectContext)
{
// Add subscriptions for the new configured projects in the new project context.
await AddSubscriptionsAsync(newProjectContext).ConfigureAwait(false);
}
}
private async Task DisposeAggregateProjectContextAsync(AggregateWorkspaceProjectContext projectContext)
{
await _contextProvider.Value.ReleaseProjectContextAsync(projectContext).ConfigureAwait(false);
foreach (var innerContext in projectContext.DisposedInnerProjectContexts)
{
foreach (var handler in Handlers)
{
await handler.Value.OnContextReleasedAsync(innerContext).ConfigureAwait(false);
}
}
}
/// <summary>
/// Ensures that <see cref="_currentAggregateProjectContext"/> is updated for the latest target frameworks from the project properties
/// and returns this value.
/// </summary>
private async Task <AggregateWorkspaceProjectContext> UpdateProjectContextAsync()
{
// Ensure that only single thread is attempting to create a project context.
AggregateWorkspaceProjectContext previousContextToDispose = null;
return(await ExecuteWithinLockAsync(async() =>
{
await _commonServices.ThreadingService.SwitchToUIThread();
string newTargetFramework = null;
var projectProperties = await _commonServices.ActiveConfiguredProjectProperties.GetConfigurationGeneralPropertiesAsync().ConfigureAwait(false);
// Check if we have already computed the project context.
if (_currentAggregateProjectContext != null)
{
// For non-cross targeting projects, we can use the current project context if the TargetFramework hasn't changed.
// For cross-targeting projects, we need to verify that the current project context matches latest frameworks targeted by the project.
// If not, we create a new one and dispose the current one.
if (!_currentAggregateProjectContext.IsCrossTargeting)
{
newTargetFramework = (string)await projectProperties.TargetFramework.GetValueAsync().ConfigureAwait(false);
if (StringComparers.PropertyValues.Equals(_currentTargetFramework, newTargetFramework))
{
return _currentAggregateProjectContext;
}
// Dispose the old workspace project context for the previous target framework.
await DisposeAggregateProjectContextAsync(_currentAggregateProjectContext).ConfigureAwait(false);
}
else
{
// Check if the current project context is up-to-date for the current active and known project configurations.
var activeProjectConfiguration = _commonServices.ActiveConfiguredProject.ProjectConfiguration;
var knownProjectConfigurations = await _commonServices.Project.Services.ProjectConfigurationsService.GetKnownProjectConfigurationsAsync().ConfigureAwait(false);
if (knownProjectConfigurations.All(c => c.IsCrossTargeting()) &&
_currentAggregateProjectContext.HasMatchingTargetFrameworks(activeProjectConfiguration, knownProjectConfigurations))
{
return _currentAggregateProjectContext;
}
previousContextToDispose = _currentAggregateProjectContext;
}
}
else
{
newTargetFramework = (string)await projectProperties.TargetFramework.GetValueAsync().ConfigureAwait(false);
}
// Force refresh the CPS active project configuration (needs UI thread).
await _commonServices.ThreadingService.SwitchToUIThread();
await _activeProjectConfigurationRefreshService.RefreshActiveProjectConfigurationAsync().ConfigureAwait(false);
// Create new project context.
_currentAggregateProjectContext = await _contextProvider.Value.CreateProjectContextAsync().ConfigureAwait(false);
_currentTargetFramework = newTargetFramework;
// Dispose the old project context, if one exists.
if (previousContextToDispose != null)
{
await DisposeAggregateProjectContextAsync(previousContextToDispose).ConfigureAwait(false);
}
return _currentAggregateProjectContext;
}));
}