protected override Boolean ExecuteFunction(IExpressionContext ctx, IExpression[] arguments)
{
var value = arguments[0];
var nullObj = value as Null;
if (nullObj != null)
{
return(Boolean.True);
}
var array = value as Array;
if (array != null)
{
return(new Boolean(array.Length == 0));
}
var text = value as Types.Text;
if (text != null)
{
return(new Boolean(text.Length == 0));
}
return(new Boolean(value.ToString().Trim().Length == 0));
}
protected override Integer ExecuteFunction(IExpressionContext ctx, IExpression[] arguments)
{
var obj = arguments[0];
var array = obj as Array;
if (array != null)
{
return(new Integer(array.Length));
}
var text = obj as Types.Text;
if (text != null)
{
return(new Integer(text.Length));
}
return(new Integer(0));
}