[Lazarus] Creating methods using rtti-info

[Joost van der Sluis]

> Joost van der Sluis <joost at cnoc.nl> wrote:
> 
> > Hi all,
> > 
> > I'm writing my own method propertyeditor. And I want it to create the source 
> for a new method. Only problem is that it should use the RTTI-information to 
> obtain the method's parameters.
> > 
> > Now if I look at TMainIDE.OnPropHookCreateMethod, it does exactly what I want 
> except that CodeToolBoss.CreatePublishedMethod is called with the 
> UseTypeInfoForParameters parameter set to false. In my case it has to be true. 
> ;)
> 
> Why?
> The RTTI might use mediator objects or things from the wrong
> platform. The codetools use the project sources and that's what
> the compiler is seeing too.

Because in my case, there are no events in the project-sources. It's an iOS objective-pascal project. The events for objective-c objects are not defined in the sources/headers, afaik. So it is not possible to adapt the codetools to find them from the sources.

It's just: event 1 is always onTouchDown, which has one parameter 'id'. (Actually only the amount of parameters is important for Objective-C, but Objective-Pascal also needs the type)
  
> > Now I could try to write my own method which does the same thing, but then 
> I'll need several things which are defined in the ide-package, which I can not 
> use. Especially the FormEditor1.CreateNewJITMethod is necessary, or else it is 
> not possible to return a create JITMethod for the new event.
> 
> Wow. That's the worst hack of the IDE. I was glad to get rid of it and
> now someone asks for its return.
> Are you sure you need them?

Well... I needed them earlier, for reading the events. To work around the absence of CreateNewJITMethods I had to use the TReader-class, and keep a list of all defined TJITMethods, so I know which TJITMethod actually corresponds with each real event.

But I don't need direct access to TJITMethod, if I have a way to create an event based on the rtti-info in some other way.

Joost.