private static IEnumerable <ISymbol> GetAllSymbolsWorker(SymbolKeyResolution resolution)
{
if (resolution.Symbol != null)
{
yield return(resolution.Symbol);
}
foreach (var symbol in resolution.CandidateSymbols)
{
yield return(symbol);
}
}
private static IEnumerable <ISymbol> GetAllSymbols(SymbolKeyResolution info)
{
if (info.Symbol != null)
{
yield return(info.Symbol);
}
else
{
foreach (var symbol in info.CandidateSymbols)
{
yield return(symbol);
}
}
}
internal static ISymbol GetAnySymbol(this SymbolKeyResolution resolution)
{
if (resolution.Symbol != null)
{
return(resolution.Symbol);
}
if (resolution.CandidateSymbols.Length > 0)
{
return(resolution.CandidateSymbols[0]);
}
return(null);
}
private static TSymbol GetFirstSymbol <TSymbol>(SymbolKeyResolution resolution)
where TSymbol : ISymbol
{
return(resolution.GetAllSymbols().OfType <TSymbol>().FirstOrDefault());
}
private static IEnumerable <TType> GetAllSymbols <TType>(SymbolKeyResolution info) => GetAllSymbols(info).OfType <TType>();
internal static IEnumerable <ISymbol> GetAllSymbols(this SymbolKeyResolution resolution)
{
return(GetAllSymbolsWorker(resolution).Distinct());
}
