[fpc-pascal] Class helper method overloading ?

[Michael Van Canneyt]

On Wed, 12 Oct 2016, LacaK wrote:

> Hi,
>
> is there posibility introduce in class helper method with same name like in 
> base class ?
>
> For example:
>
> TSQLQueryHelper = class helper for TSQLQuery
>  public
>    procedure ExecSQL(const ASQL: string; const Args: array of const); 
> overload;
> end;
>
> procedure TSQLQueryHelper.ExecSQL(const ASQL: string; const Args: array of 
> const);
> begin
>  SQL.Text := Format(ASQL, Args);
>  ExecSQL; // here I want call ExecSQL of TSQLQuery, but compiler complains 
> about wrong number of parameters
> end;
>
> When I use:
>  inherited ExecSQL;
>
> it compiles (and why is there need to use "inherited", when I use overload 
> and there exists method ExecSQL without parameters?)
>
> , but later I get again error "Wrong number of parameters specified for call 
> to "ExecSQL"",
> when I want use ExecSQL('',[]) in instance of TSQLQuery

Why not create a descendent class simply ?

Michael.