Function.cs

namespace Waher.Script.Model
{
    public abstract class Function : ScriptNode, IFunction
    {
        public Function(int Start, int Length, Expression Expression)
            : base(Start, Length, Expression)
        {
        }
 
        public abstract string FunctionName
        {
            get;
        }
 
        public virtual string[] Aliases => null;
 
        public abstract string[] DefaultArgumentNames
        {
            get;
        }
 
        public virtual string DefaultVariableName
        {
            get
            {
                string[] A = this.DefaultArgumentNames;
                if (A.Length == 1)
                    return A[0];
                else
                    return null;
            }
        }
 
        public virtual bool ContextSpecific(Expression Expression)
        {
            return false;
        }
    }
}