public override Query VisitPowerExpression(CalcParser.PowerExpressionContext context)
{
Query q1 = Visit(context.expression(0));
Query q2 = Visit(context.expression(1));
ResultType type = ResultType.Undefined;
if (q1.ExpectedResult == ResultType.Number && q2.ExpectedResult == ResultType.Number)
{
type = ResultType.Number;
}
return(new Query($"({q1}^{q2})", type));
}
public override Argument VisitPowerExpression(CalcParser.PowerExpressionContext context)
{
Argument arg1 = Visit(context.expression(0));
Argument arg2 = Visit(context.expression(1));
if (arg1.IsNull || arg2.IsNull)
{
return(Argument.Null);
}
if (arg1.IsDouble && arg2.IsDouble)
{
double result = Math.Pow(arg1.ToDouble(), arg2.ToDouble());
return(new Argument(result));
}
throw new ArgumentCastException("Wrong arguments are used in exponentiation operation");
}
