public AstDerivativeOrIntegralWindowExpression(AstDerivativeOrIntegralWindowOperator @operator, AstExpression arg, WindowTimeUnit?unit, AstWindow window)
{
_operator = @operator;
_arg = Ensure.IsNotNull(arg, nameof(arg));
_unit = unit;
_window = window;
}
public static string Render(this AstDerivativeOrIntegralWindowOperator @operator)
{
return(@operator switch
{
AstDerivativeOrIntegralWindowOperator.Derivative => "$derivative",
AstDerivativeOrIntegralWindowOperator.Integral => "$integral",
_ => throw new InvalidOperationException($"Unexpected derivative or integral window operator: {@operator}.")
});
public AstDerivativeOrIntegralWindowExpression Update(AstDerivativeOrIntegralWindowOperator @operator, AstExpression arg, WindowTimeUnit?unit, AstWindow window)
{
if (@operator == _operator && arg == _arg && unit == _unit && window == _window)
{
return(this);
}
return(new AstDerivativeOrIntegralWindowExpression(@operator, arg, unit, window));
}
