protected override async Task <CompletionDescription> GetDescriptionWorkerAsync(
Document document, CompletionItem item, CancellationToken cancellationToken)
{
var position = SymbolCompletionItem.GetContextPosition(item);
var name = SymbolCompletionItem.GetSymbolName(item);
var kind = SymbolCompletionItem.GetKind(item);
var isGeneric = SymbolCompletionItem.GetSymbolIsGeneric(item);
var relatedDocumentIds = document.Project.Solution.GetRelatedDocumentIds(document.Id).Concat(document.Id);
var options = document.Project.Solution.Workspace.Options;
var totalSymbols = await base.GetPerContextSymbolsAsync(document, position, options, relatedDocumentIds, preselect : false, cancellationToken : cancellationToken).ConfigureAwait(false);
foreach (var(documentId, syntaxContext, symbols) in totalSymbols)
{
var bestSymbols = symbols.WhereAsArray(
s => kind != null && s.Kind == kind && s.Name == name && isGeneric == (s.GetArity() > 0));
if (bestSymbols.Any())
{
return(await SymbolCompletionItem.GetDescriptionAsync(item, bestSymbols, document, syntaxContext.SemanticModel, cancellationToken).ConfigureAwait(false));
}
}
return(CompletionDescription.Empty);
}