public void GetUniqueSymbolOrArities(out IArityEnumerable arities, out TSymbol uniqueSymbol)
{
if (this.HasUniqueSymbol)
{
arities = null;
uniqueSymbol = (TSymbol)_uniqueSymbolOrArities;
}
else
{
arities = (_uniqueSymbolOrArities == null && _arityBitVectorOrUniqueArity == 0) ? null : (IArityEnumerable)this;
uniqueSymbol = null;
}
}
/// <summary>
/// If <paramref name="uniqueSymbol"/> is set, then <paramref name="arities"/> will be null.
/// The only arity in that case will be encoded in the symbol.
/// </summary>
/// <param name="name"></param>
/// <param name="arities"></param>
/// <param name="uniqueSymbol"></param>
/// <returns></returns>
public bool TryGetAritiesAndUniqueSymbol(
string name,
out IArityEnumerable arities,
out TSymbol uniqueSymbol)
{
UniqueSymbolOrArities pair;
if (!_nameMap.TryGetValue(name, out pair))
{
arities = null;
uniqueSymbol = null;
return(false);
}
// If a unique symbol is set (not null), then its arity should be determined
// by inspecting the symbol.
pair.GetUniqueSymbolOrArities(out arities, out uniqueSymbol);
return(true);
}
