public int CompareTo(SymbolSpace other)
{
if (IsValid && other.IsValid)
{
return(_symbol.CompareTo(other._symbol));
}
return(IsValid.CompareTo(other.IsValid));
}
public bool Equals(SymbolSpace other)
{
return(_isSymbolValid
? _symbol.CompareTo(other._symbol) == 0
: _isSymbolValid == other._isSymbolValid);
}