public static ZilObject BACK(Context ctx, [NotNull] IStructure st, int skip = 1)
{
try
{
var result = (ZilObject)st.GetBack(skip);
if (result == null)
{
throw new InterpreterError(InterpreterMessages._0_Not_Enough_Elements);
}
return(result);
}
catch (NotSupportedException)
{
throw new InterpreterError(InterpreterMessages._0_Not_Supported_By_Type, "BACK");
}
}
