/// <summary>
/// Get the value that we will expose to the outside
/// </summary>
private object GetFinalValue(IOperand op)
{
if (ReferenceEquals(op.GetType(), typeof(ErrorValueOperand)))
{
// We want to return error wrappers instead of error enums so that formatting will be automatic
return(((ErrorValueOperand)op).ValueAsErrorWrapper);
}
return(op.Value);
}
public static IEnumerable <IOperand> GetOperands(IOperand operand)
{
yield return(operand);
switch (operand)
{
case IUnoOperand o:
foreach (var item in GetOperands(o.Operand))
{
yield return(item);
}
yield break;
case ICollectionOperand o:
if (o.InnerOperand != null)
{
foreach (var item in GetOperands(o.InnerOperand))
{
yield return(item);
}
}
yield break;
case IBinaryOperand o:
foreach (var item in GetOperands(o.Left))
{
yield return(item);
}
foreach (var item in GetOperands(o.Right))
{
yield return(item);
}
yield break;
case IParameterizedOperand o:
yield break;
case null: throw new ArgumentNullException(nameof(operand));
default: throw new NotSupportedException(operand.GetType().FullName);
}
}