Catrobat.IDE.Core.Models.Formulas.Tree.FormulaTree.IsNumber C# (CSharp) Метод

        public abstract bool IsNumber();

        public static object Evaluate(FormulaTree formula)
        {
            if (formula == null) return null;

            return formula.IsNumber() ? (object)formula.EvaluateNumber() : formula.EvaluateLogic();
        }