protected sealed override void AfterCommitSync(ISet <IPsiSourceFile> indirectDependencies)
        {
            myLocks.ExecuteWithWriteLockWhenAvailable(Lifetime,
                                                      $"{nameof(T4FileDependencyInvalidator)} :: AfterCommitSync",
                                                      () =>
            {
                foreach (var file in indirectDependencies)
                {
                    file.SetBeingIndirectlyUpdated(true);
                    Services.Caches.MarkAsDirty(file);
                    Services.Files.MarkAsDirty(file);
                }

                foreach (var file in PreviousIterationIndirectDependencies.Except(indirectDependencies))
                {
                    file.SetBeingIndirectlyUpdated(false);
                }

                PreviousIterationIndirectDependencies = indirectDependencies;
            });
        }