public static MetaFormulaItem Create(FormulaItem argument)
{
if (argument == null)
{
return(null);
}
return(new MetaFormulaItem(argument));
}
public MetaFormulaItem(FormulaItem arg)
{
Substream = arg.Substream;
Value = arg.Value;
PeriodShift = Util.ReplaceParameter(arg.PeriodShift);
PeriodShiftSource = arg.PeriodShiftSource;
switch (arg.ValueType)
{
case FormulaItem.STREAM_VALUE:
ValueType = FormulaItemType.StreamValue;
break;
case FormulaItem.STREAM:
ValueType = FormulaItemType.Stream;
break;
case FormulaItem.VALUE:
ValueType = FormulaItemType.Value;
break;
case FormulaItem.OPERAND:
ValueType = FormulaItemType.Operand;
break;
case FormulaItem.PARAM:
ValueType = FormulaItemType.Parameter;
break;
default:
throw new NotImplementedException();
}
switch (arg.StreamType)
{
case FormulaItem.NOT_USED:
StreamType = ValueType == FormulaItemType.Stream ? StreamType.Indicator : StreamType.NotUsed;
break;
case FormulaItem.INDICATOR:
StreamType = StreamType.Indicator;
break;
case FormulaItem.INSTRUMENT:
StreamType = StreamType.Instrument;
break;
default:
throw new NotImplementedException();
}
}