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Re: Status of GNUstep

From: Dr. H. Nikolaus Schaller
Subject: Re: Status of GNUstep
Date: Mon, 6 Jul 2015 07:57:43 +0200

Am 05.07.2015 um 22:49 schrieb Doug Simons <address@hidden>:

> Hmm, a thought occurred to me: Would there be an easy way to determine the 
> GNUstep methods (and possibly functions) that are called by an application?

just compile the application, search for the executable file and apply the ’nm’ 
(names) command.

This will list the “undefined” references that are to be satisfied by the 
shared libraries.

Of course it is a mix of system libraries and GNUstep libraries, but you will 
see the format of Obj-C methods.


> The idea would be to create a list of methods that are known to be used by 
> one or more applications within the community. Even if a method has been 
> implemented in GNUstep, it may not actually be in use by anyone in which case 
> it's a bit of an unknown whether it actually works correctly. 
> Even for the methods that are being used by an app, there's no absolute 
> guarantee that they will work correctly in all situations, but we could at 
> least be reasonably confident that they are implemented and generally 
> functional. We occasionally wonder what the state of development is for a 
> class or set of classes that we don't currently use but are considering for 
> use in our future development, so having a composite list of usage within 
> other apps might come in handy.
> Of course, if there's no easy way to extract that information from an app, 
> then this is a non-starter, but I would think the linker might be able to 
> generate such a list? If so, I'd be happy to generate the list of calls used 
> by eggPlant and share that information.
> Regards,
> Doug
> On Jul 5, 2015, at 4:24 AM, David Chisnall <address@hidden> wrote:
>> On 5 Jul 2015, at 11:06, James Carthew <address@hidden> wrote:
>>> Hello,
>>> Does GNUstep have a status page similar to: 
>>> http://nouveau.freedesktop.org/wiki/FeatureMatrix/
>>> Which outlines the current API status of GNUstep in relation to 
>>> NextStep/Cocoa APIs? I haven't been able to locate anything like this and I 
>>> think it would help to give people a better overview of where the project 
>>> is at.
>> No, and it’s quite difficult to do.  We can automatically extract the list 
>> of methods that exist for classes in GNUstep vs Cocoa, but some methods in 
>> GNUstep are stubs or do not have complete functionality.  Some are more 
>> subtle (for example, GNUstep’s NSTableView does not yet allow the delegate 
>> to use views instead of cells) and even more difficult to automatically 
>> extract.  Generally, features are implemented when someone needs them.
>> David
>> --
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