private static IEnumerable <KeyValuePair <string, DType> > StringTypeSuggestions(DType scopeType, int argumentIndex, out bool requiresSuggestionEscaping) { Contracts.AssertValid(scopeType); Contracts.Assert(0 <= argumentIndex); requiresSuggestionEscaping = true; if (argumentIndex == 0) { return(IntellisenseHelper.GetSuggestionsFromType(scopeType, DType.String)); } return(EnumerableUtils.Yield <KeyValuePair <string, DType> >()); }