public override async Task <string> OnGetEvaluatedPropertyValueAsync(string evaluatedPropertyValue, IProjectProperties defaultProperties)
{
ActiveConfiguredObjects <ConfiguredProject>?configuredProjects = await _projectProvider.GetActiveConfiguredProjectsAsync();
if (configuredProjects == null)
{
return("");
}
var builder = PooledArray <string> .GetInstance();
foreach (ConfiguredProject configuredProject in configuredProjects.Objects)
{
ProjectProperties projectProperties = configuredProject.Services.ExportProvider.GetExportedValue <ProjectProperties>();
ConfigurationGeneral configuration = await projectProperties.GetConfigurationGeneralPropertiesAsync();
string?currentTargetFrameworkMoniker = (string?)await configuration.TargetFrameworkMoniker.GetValueAsync();
Assumes.NotNull(currentTargetFrameworkMoniker);
builder.Add(currentTargetFrameworkMoniker !);
}
return(string.Join(";", builder.ToArrayAndFree()));
}
public override async Task <string?> OnSetPropertyValueAsync(
string propertyName,
string unevaluatedPropertyValue,
IProjectProperties defaultProperties,
IReadOnlyDictionary <string, string>?dimensionalConditions = null)
{
ConfigurationGeneral configuration = await _properties.GetConfigurationGeneralPropertiesAsync();
string?currentTargetFramework = (string?)await configuration.TargetFramework.GetValueAsync();
string?currentTargetFrameworks = (string?)await configuration.TargetFrameworks.GetValueAsync();
if (!string.IsNullOrEmpty(currentTargetFrameworks))
{
throw new InvalidOperationException(VSResources.MultiTFEditNotSupported);
}
else if (!string.IsNullOrEmpty(currentTargetFramework))
{
await defaultProperties.SetPropertyValueAsync(ConfigurationGeneral.TargetFrameworkProperty, unevaluatedPropertyValue);
}
else
{
// CPS implements IVsHierarchy.SetProperty for the TFM property to call through the multi-targeting service and change the TFM.
// This causes the project to be reloaded after changing the values.
// Since the property providers are called under a write-lock, trying to reload the project on the same context fails saying it can't load the project
// if a lock is held. We are not going to write to the file under this lock (we return null from this method) and so we fork execution here to schedule
// a lambda on the UI thread and we don't pass the lock information from this context to the new one.
_unconfiguredProjectVsServices.ThreadingService.RunAndForget(() =>
{
_unconfiguredProjectVsServices.VsHierarchy.SetProperty(HierarchyId.Root, (int)VsHierarchyPropID.TargetFrameworkMoniker, unevaluatedPropertyValue);
return(System.Threading.Tasks.Task.CompletedTask);
}, options: ForkOptions.HideLocks | ForkOptions.StartOnMainThread,
unconfiguredProject: _unconfiguredProjectVsServices.Project);
}
return(null);
}
public async Task <AggregateCrossTargetProjectContext> CreateProjectContextAsync()
{
// Get the set of active configured projects ignoring target framework.
#pragma warning disable CS0618 // Type or member is obsolete
ImmutableDictionary <string, ConfiguredProject> configuredProjectsMap = await _activeConfiguredProjectsProvider.GetActiveConfiguredProjectsMapAsync();
#pragma warning restore CS0618 // Type or member is obsolete
ProjectConfiguration activeProjectConfiguration = _commonServices.ActiveConfiguredProject.ProjectConfiguration;
ImmutableArray <ITargetFramework> .Builder targetFrameworks = ImmutableArray.CreateBuilder <ITargetFramework>(initialCapacity: configuredProjectsMap.Count);
ITargetFramework activeTargetFramework = TargetFramework.Empty;
foreach ((string tfm, ConfiguredProject configuredProject) in configuredProjectsMap)
{
ProjectProperties projectProperties = configuredProject.Services.ExportProvider.GetExportedValue <ProjectProperties>();
ConfigurationGeneral configurationGeneralProperties = await projectProperties.GetConfigurationGeneralPropertiesAsync();
ITargetFramework targetFramework = await GetTargetFrameworkAsync(tfm, configurationGeneralProperties);
targetFrameworks.Add(targetFramework);
if (activeTargetFramework.Equals(TargetFramework.Empty) &&
configuredProject.ProjectConfiguration.Equals(activeProjectConfiguration))
{
activeTargetFramework = targetFramework;
}
}
bool isCrossTargeting = !(configuredProjectsMap.Count == 1 && string.IsNullOrEmpty(configuredProjectsMap.First().Key));
return(new AggregateCrossTargetProjectContext(
isCrossTargeting,
targetFrameworks.MoveToImmutable(),
configuredProjectsMap,
activeTargetFramework,
_targetFrameworkProvider));
}
private async Task <string?> GetTemplateLanguageAsync()
{
ConfigurationGeneral general = await _properties.GetConfigurationGeneralPropertiesAsync();
return((string?)await general.TemplateLanguage.GetValueAsync());
}
/// <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;
ConfigurationGeneral 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.
ProjectConfiguration activeProjectConfiguration = _commonServices.ActiveConfiguredProject.ProjectConfiguration;
IImmutableSet <ProjectConfiguration> 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;
}).ConfigureAwait(false));
}
private async Task <Guid> GetLanguageServiceId()
{
ConfigurationGeneral properties = await _projectVsServices.ActiveConfiguredProjectProperties.GetConfigurationGeneralPropertiesAsync();
return(await properties.LanguageServiceId.GetValueAsGuidAsync());
}
/// <summary>
/// Determines whether the current project context object is out of date based on the project's target frameworks.
/// If so, a new one is created and subscriptions are updated accordingly.
/// </summary>
private async Task UpdateProjectContextAndSubscriptionsAsync()
{
// Ensure that only single thread is attempting to create a project context.
AggregateCrossTargetProjectContext newProjectContext = await ExecuteWithinLockAsync(TryUpdateCurrentAggregateProjectContextAsync);
if (newProjectContext != null)
{
// Dispose existing subscriptions.
DisposeAndClearSubscriptions();
// Add subscriptions for the configured projects in the new project context.
await AddSubscriptionsAsync(newProjectContext);
}
return;
async Task <AggregateCrossTargetProjectContext> TryUpdateCurrentAggregateProjectContextAsync()
{
AggregateCrossTargetProjectContext previousContext = _currentAggregateProjectContext;
// Check if we have already computed the project context.
if (previousContext != 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.
ConfigurationGeneral projectProperties = await _commonServices.ActiveConfiguredProjectProperties.GetConfigurationGeneralPropertiesAsync();
if (!previousContext.IsCrossTargeting)
{
string newTargetFrameworkName = (string)await projectProperties.TargetFramework.GetValueAsync();
ITargetFramework newTargetFramework = _targetFrameworkProvider.GetTargetFramework(newTargetFrameworkName);
if (previousContext.ActiveTargetFramework.Equals(newTargetFramework))
{
// No change
return(null);
}
}
else
{
// Check if the current project context is up-to-date for the current active and known project configurations.
ProjectConfiguration activeProjectConfiguration = _commonServices.ActiveConfiguredProject.ProjectConfiguration;
IImmutableSet <ProjectConfiguration> knownProjectConfigurations = await _commonServices.Project.Services.ProjectConfigurationsService.GetKnownProjectConfigurationsAsync();
if (knownProjectConfigurations.All(c => c.IsCrossTargeting()) &&
HasMatchingTargetFrameworks(previousContext, activeProjectConfiguration, knownProjectConfigurations))
{
// No change
return(null);
}
}
}
// Force refresh the CPS active project configuration (needs UI thread).
await _commonServices.ThreadingService.SwitchToUIThread();
await _activeProjectConfigurationRefreshService.RefreshActiveProjectConfigurationAsync();
// Create new project context.
AggregateCrossTargetProjectContext newContext = await _contextProvider.Value.CreateProjectContextAsync();
_currentAggregateProjectContext = newContext;
OnAggregateContextChanged(previousContext, newContext);
return(newContext);
}
bool HasMatchingTargetFrameworks(
AggregateCrossTargetProjectContext previousContext,
ProjectConfiguration activeProjectConfiguration,
IReadOnlyCollection <ProjectConfiguration> knownProjectConfigurations)
{
Assumes.True(activeProjectConfiguration.IsCrossTargeting());
ITargetFramework activeTargetFramework = _targetFrameworkProvider.GetTargetFramework(activeProjectConfiguration.Dimensions[ConfigurationGeneral.TargetFrameworkProperty]);
if (!previousContext.ActiveTargetFramework.Equals(activeTargetFramework))
{
// Active target framework is different.
return(false);
}
var targetFrameworkMonikers = knownProjectConfigurations
.Select(c => c.Dimensions[ConfigurationGeneral.TargetFrameworkProperty])
.Distinct()
.ToList();
if (targetFrameworkMonikers.Count != previousContext.TargetFrameworks.Length)
{
// Different number of target frameworks.
return(false);
}
foreach (string targetFrameworkMoniker in targetFrameworkMonikers)
{
ITargetFramework targetFramework = _targetFrameworkProvider.GetTargetFramework(targetFrameworkMoniker);
if (!previousContext.TargetFrameworks.Contains(targetFramework))
{
// Differing TargetFramework
return(false);
}
}
return(true);
}
void OnAggregateContextChanged(
AggregateCrossTargetProjectContext oldContext,
AggregateCrossTargetProjectContext newContext)
{
if (oldContext == null)
{
// all new rules will be sent to new context, we don't need to clean up anything
return;
}
var targetsToClean = new HashSet <ITargetFramework>();
ImmutableArray <ITargetFramework> oldTargets = oldContext.TargetFrameworks;
if (newContext == null)
{
targetsToClean.AddRange(oldTargets);
}
else
{
ImmutableArray <ITargetFramework> newTargets = newContext.TargetFrameworks;
targetsToClean.AddRange(oldTargets.Except(newTargets));
}
if (targetsToClean.Count != 0)
{
TryUpdateSnapshot(snapshot => snapshot.RemoveTargets(targetsToClean));
}
}
}
private async Task <string> GetTargetPathAsync()
{
ConfigurationGeneral properties = await _commonServices.ActiveConfiguredProjectProperties.GetConfigurationGeneralPropertiesAsync();
return((string)await properties.TargetPath.GetValueAsync());
}
private async Task <ComplexTargetFramework> GetStoredPropertiesAsync()
{
ConfigurationGeneral configuration = await _properties.GetConfigurationGeneralPropertiesAsync();
return(await GetStoredComplexTargetFrameworkAsync(configuration));
}
private static async Task <ComplexTargetFramework> GetStoredComplexTargetFrameworkAsync(ConfigurationGeneral configuration)
{
ComplexTargetFramework storedValues = new ComplexTargetFramework
{
TargetFrameworkMoniker = (string?)await configuration.TargetFrameworkMoniker.GetValueAsync(),
TargetPlatformIdentifier = (string?)await configuration.TargetPlatformIdentifier.GetValueAsync(),
TargetPlatformVersion = (string?)await configuration.TargetPlatformVersion.GetValueAsync(),
TargetFramework = (string?)await configuration.TargetFramework.GetValueAsync()
};
return(storedValues);
}
public async Task <AggregateCrossTargetProjectContext?> TryUpdateCurrentAggregateProjectContextAsync()
{
AggregateCrossTargetProjectContext?previousContext = Current;
// Check if we have already computed the project context.
if (previousContext != 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.
ConfigurationGeneral projectProperties = await _commonServices.ActiveConfiguredProjectProperties.GetConfigurationGeneralPropertiesAsync();
if (!previousContext.IsCrossTargeting)
{
string?newTargetFrameworkName = (string?)await projectProperties.TargetFrameworkMoniker.GetValueAsync();
if (string.IsNullOrEmpty(newTargetFrameworkName) && TargetFramework.Empty.Equals(previousContext.ActiveTargetFramework))
{
// No change
return(null);
}
TargetFramework?newTargetFramework = _targetFrameworkProvider.GetTargetFramework(newTargetFrameworkName);
if (previousContext.ActiveTargetFramework.Equals(newTargetFramework))
{
// No change
return(null);
}
}
else
{
// Check if the current project context is up-to-date for the current active and known project configurations.
Assumes.Present(_commonServices.Project.Services.ProjectConfigurationsService);
ProjectConfiguration activeProjectConfiguration = _commonServices.ActiveConfiguredProject.ProjectConfiguration;
IImmutableSet <ProjectConfiguration> knownProjectConfigurations = await _commonServices.Project.Services.ProjectConfigurationsService.GetKnownProjectConfigurationsAsync();
if (knownProjectConfigurations.All(c => c.IsCrossTargeting()) &&
HasMatchingTargetFrameworks(activeProjectConfiguration, knownProjectConfigurations))
{
// No change
return(null);
}
}
}
// Force refresh the CPS active project configuration (needs UI thread).
await _commonServices.ThreadingService.SwitchToUIThread();
await _activeProjectConfigurationRefreshService.RefreshActiveProjectConfigurationAsync();
// Create new project context.
AggregateCrossTargetProjectContext newContext = await _contextProvider.Value.CreateProjectContextAsync();
Current = newContext;
return(newContext);
bool HasMatchingTargetFrameworks(
ProjectConfiguration activeProjectConfiguration,
IReadOnlyCollection <ProjectConfiguration> knownProjectConfigurations)
{
Assumes.NotNull(previousContext);
Assumes.True(activeProjectConfiguration.IsCrossTargeting());
TargetFramework?activeTargetFramework = _targetFrameworkProvider.GetTargetFramework(activeProjectConfiguration.Dimensions[ConfigurationGeneral.TargetFrameworkProperty]);
if (!previousContext.ActiveTargetFramework.Equals(activeTargetFramework))
{
// Active target framework is different.
return(false);
}
var targetFrameworkMonikers = knownProjectConfigurations
.Select(c => c.Dimensions[ConfigurationGeneral.TargetFrameworkProperty])
.Distinct()
.ToList();
if (targetFrameworkMonikers.Count != previousContext.TargetFrameworks.Length)
{
// Different number of target frameworks.
return(false);
}
foreach (string targetFrameworkMoniker in targetFrameworkMonikers)
{
TargetFramework?targetFramework = _targetFrameworkProvider.GetTargetFramework(targetFrameworkMoniker);
if (targetFramework == null || !previousContext.TargetFrameworks.Contains(targetFramework))
{
// Differing TargetFramework
return(false);
}
}
return(true);
}
}
private async Task <AggregateWorkspaceProjectContext> CreateProjectContextAsyncCore()
{
string languageName = await GetLanguageServiceName().ConfigureAwait(false);
if (string.IsNullOrEmpty(languageName))
{
return(null);
}
Guid projectGuid = await _projectGuidService.GetProjectGuidAsync()
.ConfigureAwait(false);
string targetPath = await GetTargetPathAsync().ConfigureAwait(false);
if (string.IsNullOrEmpty(targetPath))
{
return(null);
}
// TODO: https://github.com/dotnet/roslyn-project-system/issues/353
await _commonServices.ThreadingService.SwitchToUIThread();
ProjectData projectData = GetProjectData();
// Get the set of active configured projects ignoring target framework.
#pragma warning disable CS0618 // Type or member is obsolete
ImmutableDictionary <string, ConfiguredProject> configuredProjectsMap = await _activeConfiguredProjectsProvider.GetActiveConfiguredProjectsMapAsync().ConfigureAwait(true);
#pragma warning restore CS0618 // Type or member is obsolete
// Get the unconfigured project host object (shared host object).
var configuredProjectsToRemove = new HashSet <ConfiguredProject>(_configuredProjectHostObjectsMap.Keys);
ProjectConfiguration activeProjectConfiguration = _commonServices.ActiveConfiguredProject.ProjectConfiguration;
ImmutableDictionary <string, IWorkspaceProjectContext> .Builder innerProjectContextsBuilder = ImmutableDictionary.CreateBuilder <string, IWorkspaceProjectContext>();
string activeTargetFramework = string.Empty;
IConfiguredProjectHostObject activeIntellisenseProjectHostObject = null;
foreach (KeyValuePair <string, ConfiguredProject> kvp in configuredProjectsMap)
{
string targetFramework = kvp.Key;
ConfiguredProject configuredProject = kvp.Value;
if (!TryGetConfiguredProjectState(configuredProject, out IWorkspaceProjectContext workspaceProjectContext, out IConfiguredProjectHostObject configuredProjectHostObject))
{
// Get the target path for the configured project.
ProjectProperties projectProperties = configuredProject.Services.ExportProvider.GetExportedValue <ProjectProperties>();
ConfigurationGeneral configurationGeneralProperties = await projectProperties.GetConfigurationGeneralPropertiesAsync().ConfigureAwait(true);
targetPath = (string)await configurationGeneralProperties.TargetPath.GetValueAsync().ConfigureAwait(true);
string targetFrameworkMoniker = (string)await configurationGeneralProperties.TargetFrameworkMoniker.GetValueAsync().ConfigureAwait(true);
string workspaceProjectContextId = GetWorkspaceContextId(configuredProject);
configuredProjectHostObject = _projectHostProvider.GetConfiguredProjectHostObject(_unconfiguredProjectHostObject, workspaceProjectContextId, targetFrameworkMoniker);
// TODO: https://github.com/dotnet/roslyn-project-system/issues/353
await _commonServices.ThreadingService.SwitchToUIThread();
// NOTE: Despite CreateProjectContext taking a "displayName"; it's actually sets both "WorkspaceProjectContextId", "DisplayName", and default "AssemblyName".
// Unlike the latter properties, we cannot change WorkspaceProjectContextId once set, so we pass it as the display name.
workspaceProjectContext = _contextFactory.Value.CreateProjectContext(languageName, workspaceProjectContextId, projectData.FullPath, projectGuid, configuredProjectHostObject, targetPath);
workspaceProjectContext.DisplayName = GetDisplayName(configuredProject, projectData, targetFramework);
// By default, set "LastDesignTimeBuildSucceeded = false" to turn off diagnostics until first design time build succeeds for this project.
workspaceProjectContext.LastDesignTimeBuildSucceeded = false;
AddConfiguredProjectState(configuredProject, workspaceProjectContext, configuredProjectHostObject);
}
innerProjectContextsBuilder.Add(targetFramework, workspaceProjectContext);
if (activeIntellisenseProjectHostObject == null && configuredProject.ProjectConfiguration.Equals(activeProjectConfiguration))
{
activeIntellisenseProjectHostObject = configuredProjectHostObject;
activeTargetFramework = targetFramework;
}
}
_unconfiguredProjectHostObject.ActiveIntellisenseProjectHostObject = activeIntellisenseProjectHostObject;
return(new AggregateWorkspaceProjectContext(innerProjectContextsBuilder.ToImmutable(), configuredProjectsMap, activeTargetFramework, _unconfiguredProjectHostObject));
}
public Init(ConfigurationGeneral configurationGeneral)
{
this.mConfigurationGeneral = configurationGeneral;
}
// Returns the name that is the handshake between Roslyn and the csproj/vbproj
private async Task <string> GetLanguageServiceName()
{
ConfigurationGeneral properties = await _commonServices.ActiveConfiguredProjectProperties.GetConfigurationGeneralPropertiesAsync();
return((string)await properties.LanguageServiceName.GetValueAsync());
}