Lazarus

Free Pascal => General => Topic started by: tverweij on April 12, 2018, 09:31:17 am

Title: Attributes and Virtual Method Interceptors
Post by: tverweij on April 12, 2018, 09:31:17 am

Attributes - I only found a wiki page of 2014 with a proposed syntax. (http://wiki.freepascal.org/Property_attributes (http://wiki.freepascal.org/Property_attributes))
(Delphi page: http://docwiki.embarcadero.com/RADStudio/XE6/en/Attributes_Index (http://docwiki.embarcadero.com/RADStudio/XE6/en/Attributes_Index))

Virtual Method Interceptors - I could not find any wiki page.
(Delphi page: http://docwiki.embarcadero.com/RADStudio/XE6/en/Using_Virtual_Method_Interceptors (http://docwiki.embarcadero.com/RADStudio/XE6/en/Using_Virtual_Method_Interceptors))

Question:
Are those supported at this moment?
If not, are they planned?

Title: Re: Attributes and Virtual Method Interceptors
Post by: Thaddy on April 12, 2018, 09:41:31 am

There is a patch submitted on the bugtracker to support attributes, but as far as I know it is not (yet) applied.
See https://bugs.freepascal.org/view.php?id=33384
A lot of work has been done on extended rtti, but I am not sure TvirtualMethodInterceptor is already implemented.
What I DO know that there are no technical limitations - in trunk - to implement it.

Title: Re: Attributes and Virtual Method Interceptors
Post by: tverweij on April 12, 2018, 10:14:48 am

Forgive me, I am new to the FPC community.

The submitted patch - does that mean it will be available within a short period?

Title: Re: Attributes and Virtual Method Interceptors
Post by: Thaddy on April 12, 2018, 11:02:08 am

The patch is assigned. If the developer has time and the patch is correct it will be applied. There is no time frame for it.
I tested that patch a bit and it looks OK on first glance, but I am not a developer.
If you are confident enough it is possible to test it yourself but for beginners that is not easy at all.