protected override async Task <IEnumerable <CodeActionOperation> > ComputeOperationsAsync(CancellationToken cancellationToken)
{
var service = _document.Project.Solution.Workspace.Services.GetService <IMetadataService>();
var resolvedPath = _lazyResolvedPath.Value;
var reference = service.GetReference(resolvedPath, MetadataReferenceProperties.Assembly);
// First add the "using/import" directive in the code.
(SyntaxNode node, Document document) = await _reference.ReplaceNameNodeAsync(
_node, _document, cancellationToken).ConfigureAwait(false);
var newDocument = await _reference.provider.AddImportAsync(
node, _reference.SearchResult.NameParts, document, _placeSystemNamespaceFirst, cancellationToken).ConfigureAwait(false);
// Now add the actual assembly reference.
var newProject = newDocument.Project;
newProject = newProject.WithMetadataReferences(
newProject.MetadataReferences.Concat(reference));
var operation = new ApplyChangesOperation(newProject.Solution);
return(SpecializedCollections.SingletonEnumerable <CodeActionOperation>(operation));
}
