public override IValue Eval(IValue[] parameters)
{
var mode = this.Validate(parameters);
switch (mode)
{
case Mode.Set:
var res = new ListArray() as IArray;
foreach (var parameter in parameters)
{
res = res.Combine(parameter.AsSet);
}
return(new ArrayValue(res));
case Mode.String:
var sb = new StringBuilder();
foreach (var parameter in parameters)
{
sb.Append(parameter.AsString);
}
return(new StringValue(sb.ToString()));
default:
throw new System.NotSupportedException();
}
}
