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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Emacs vs GPS vs Eclipse, Ada vs Lisp vs Lua vs Java
Date: Sat, 12 Mar 2011 16:23:12 +0100
Date: 2011-03-12T16:23:05+01:00	[thread overview]
Message-ID: <4wxehmr0odbn.so98kpo0i6do.dlg@40tude.net> (raw)
In-Reply-To: 82vczowlcz.fsf@stephe-leake.org

On Sat, 12 Mar 2011 07:53:48 -0500, Stephen Leake wrote:

> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
> 
>> On Fri, 11 Mar 2011 04:12:40 -0500, Stephen Leake wrote:
>>
>>> Last I checked, GPS doesn't do VHDL, LaTeX, Maxima, Matlab, bash mode,
>>> make mode, monotone, read/send mail; all tools I need in my integrated
>>> development environment.
>>
>> What about retouching private album photos and ripping CDs?
> 
> No, I don't expect Emacs to do that. But I wouldn't be surprised if
> there is a mode that does!
> 
> Are you saying GPS supports that?

No, I wondered why it should. I don't want a mail-sending IDE.

>>> If GPS can do dynamically loaded Ada with source-code debugging, that
>>> would be a huge selling point.
>> [...]
>>> Apparently Java is used this way in Eclipse; does that have source-code
>>> debugging for dynamically loaded subprograms?
>>
>> You can start GPS in a command mode listening for connections from the
>> program being debugged and navigate the project sources from there. (It is
>> a huge help when debugging GtkAda applications.) You can walk the call
>> stack from an exception handler or at any point you wanted, without messing
>> up with gdb (which does not work anyway).
> 
> I gather you are saying you can use one GPS instance to debug the Ada
> code in another GPS instance.

No, I mean that you can communicate to GPS from your Ada program, e.g.
while debugging it.

> That makes sense; in this mode, GPS is a
> front-end for gdb. Emacs can do the same thing.

gdb is garbage. But even if there were a decent debugger for GNAT, you may
want to have some tracing tool. GPS gives you an opportunity to browse the
sources while tracing.

> But I have debugged GtkAda programs at that level, and it is not nearly
> as productive (for the task of implementing simple GUIs for programmer
> tools) as the Emacs environment. Mostly because the edit/compile/test
> cycle for a single subprogram is much faster in the Emacs environment.

I am not sure how it can be faster than in GPS: F4, shift+F2. Debugging
GtkAda with gdb cannot work, because GTK does not use exceptions to
indicate errors. Also if you stop GTK in an unfortunate state, you would
corrupt GUI in a way unrelated to the original problem. It is similar to
real-time applications, which break when stepped. Tracing works much better
and an ability to ask GPS to show the source where the message came from is
a great help.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de



  reply	other threads:[~2011-03-12 15:23 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-09 18:00 How to leave .ali files in original library? localhost
2011-03-09 18:53 ` Jeffrey Carter
2011-03-09 18:56   ` localhost
2011-03-09 19:17   ` localhost
2011-03-10 17:10   ` Robert Matthews
2011-03-10 17:42     ` localhost
2011-03-09 21:10 ` Ludovic Brenta
2011-03-10  6:10   ` localhost
2011-03-10  6:36     ` Simon Wright
2011-03-10  6:46       ` localhost
2011-03-10  9:23         ` Ludovic Brenta
2011-03-10  9:36           ` localhost
2011-03-10 18:42             ` Per Sandberg
2011-03-10 21:06               ` Simon Wright
2011-03-11  9:12               ` Emacs vs GPS vs Eclipse, Ada vs Lisp vs Lua vs Java Stephen Leake
2011-03-11 11:59                 ` Peter C. Chapin
2011-03-11 14:59                 ` Dmitry A. Kazakov
2011-03-12 12:53                   ` Stephen Leake
2011-03-12 15:23                     ` Dmitry A. Kazakov [this message]
2011-03-13 15:17                       ` Stephen Leake
2011-03-13 16:20                         ` Dmitry A. Kazakov
2011-03-14 12:07                           ` Stephen Leake
2011-03-14 13:54                             ` Dmitry A. Kazakov
2011-03-11  8:41             ` How to leave .ali files in original library? Stephen Leake
2011-03-11  8:59               ` localhost
2011-03-12 12:36                 ` Stephen Leake
2011-03-10 21:23           ` Randy Brukardt
2011-03-11  6:05             ` AdaMagica
2011-03-11  6:44               ` Per Sandberg
2011-03-11  9:26                 ` Cyrille
2011-03-11 10:09                   ` Cyrille
2011-03-11  9:02             ` localhost
2011-03-11  9:16               ` Ludovic Brenta
2011-03-11 15:07                 ` Dmitry A. Kazakov
2011-03-12 12:37                 ` Stephen Leake
2011-03-11  9:19             ` Stephen Leake
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