private ProjectState(
ProjectState older,
ProjectDifference difference,
HostProject hostProject,
Project workspaceProject,
ImmutableDictionary <string, DocumentState> documents,
ImmutableDictionary <string, ImmutableArray <string> > importsToRelatedDocuments)
{
if (older == null)
{
throw new ArgumentNullException(nameof(older));
}
if (hostProject == null)
{
throw new ArgumentNullException(nameof(hostProject));
}
if (documents == null)
{
throw new ArgumentNullException(nameof(documents));
}
if (importsToRelatedDocuments == null)
{
throw new ArgumentNullException(nameof(importsToRelatedDocuments));
}
Services = older.Services;
Version = older.Version.GetNewerVersion();
HostProject = hostProject;
WorkspaceProject = workspaceProject;
Documents = documents;
ImportsToRelatedDocuments = importsToRelatedDocuments;
_lock = new object();
if ((difference & ClearDocumentCollectionVersionMask) == 0)
{
// Document collection hasn't changed
DocumentCollectionVersion = older.DocumentCollectionVersion;
}
else
{
DocumentCollectionVersion = Version;
}
if ((difference & ClearComputedStateMask) == 0 && older._computedState != null)
{
// Optimistically cache the RazorProjectEngine.
_computedState = new ComputedStateTracker(this, older._computedState);
}
if ((difference & ClearCachedTagHelpersMask) == 0 && _computedState != null)
{
// It's OK to keep the computed Tag Helpers.
_computedState.TaskUnsafe = older._computedState?.TaskUnsafe;
}
}
public ComputedStateTracker(ProjectState state, ComputedStateTracker older = null)
{
_projectStateVersion = state.Version;
_lock = state._lock;
_older = older;
ProjectEngine = _older?.ProjectEngine;
if (ProjectEngine == null)
{
ProjectEngine = state.CreateProjectEngine();
}
}
public ComputedStateTracker(DocumentState state, ComputedStateTracker older = null)
{
_lock = state._lock;
_older = older;
}
