[Pharo-users] Testing Baselines Modifications

[Vitor Medina Cruz]

Hello,

How do you usually test Baseline modifications?

I have a separate image with my git project added and when I need I load it
with Metacello to see if everything works correctly, but this it seems
unkward to me because I need to commit every change I make in one image
Baseline in order to load in the other.

Doing this test in the same image I am developing already caused trouble to
me, lost code, some oddities, and often I had to discard the image and
start over in another one.

Is there a best way of testing Baselines changes?

Thanks,
Vitor

Re: [Pharo-users] mentor wanted

[Richard Sargent]

On Thu, Apr 23, 2020 at 2:42 PM Roelof Wobben  wrote:

> Op 23-4-2020 om 23:00 schreef Richard Sargent:
>
> On Thu, Apr 23, 2020 at 12:14 PM Roelof Wobben  wrote:
>
>> Op 23-4-2020 om 21:09 schreef Richard Sargent:
>>
>> On Thu, Apr 23, 2020 at 12:00 PM Roelof Wobben  wrote:
>>
>>> Op 23-4-2020 om 20:52 schreef Richard Sargent:
>>>
>>> On Thu, Apr 23, 2020 at 3:32 AM Roelof Wobben via Pharo-users <
>>> pharo-users@lists.pharo.org> wrote:
>>>
 Hello,

 I like Pharo a lot but I hit a wall very often.
 With complex problems I do not see how to solve things in small steps.

>>>
>>> I would be happy to help with the Smalltalk and problem analysis
>>> aspects. Unfortunately, I don't use Pharo much, so I cannot help with it.
>>>
>>>
 Is there somewhere who is willing to mentor me in how I can overcome
 that problem.

 Roelof



>>> Pity,
>>>
>>>
>>> but if you could help me to learn how to divide a complex problem in
>>> smaller steps , then I think I can make it work in Pharo.   My problem is
>>> more that then how to do it in Pharo.
>>>
>>> Do you then use gemtalk a lot.
>>> Pity that I cannot make exercism challenges on that.
>>> And AdventOfCode do seem to difficult for a beginner.
>>>
>>
>> Yes, I can help with those areas. I've been programming professionally
>> and virtually exclusively in Smalltalk since 1991.
>>
>> I've been using GemStone/S since 2009 and now work for the manufacturer.
>> I've been working with VA Smalltalk and its predecessors since 1994 and
>> with VisualWorks since 2009.
>>
>> I hear you about using GemStone/S. For most of its life, the assumption
>> was that you would use a client Smalltalk like VA Smalltalk or VisualWorks
>> to do your development work. Although, recently we've been working on
>> Jadeite (https://github.com/GemTalk/Jadeite) to provide a development
>> environment independent of GBS (which is what we used to connect VA
>> Smalltalk and VisualWorks to GemStone/S).
>>
>>
>>> Roelof
>>>
>>>
>>
>> Oke, I have heard of it  but because I could not find a course or book
>> about gemstone and found a mooc about Pharo I choose that one.
>>
>
> Pharo is an excellent choice and the MOOC should help.
>
>
>> But is there then much difference between Pharo and Gemstone or can I
>> make a solution to a problem and use the same code for both.
>>
>
> There are many differences. Most notably, GemStone doesn't have a GUI.
> However, there are many people using what's called "Develop in Pharo,
> deploy in GemStone" with Seaside.
>
>
>> For me programming is a hobby. In the Netherlands most companies use c#
>> and with 53 and no XP I do not think its wise to  think I find a job as
>> developer.
>>
>
> It's a good hobby. I wouldn't plan on finding a job, if I were you, but
> you never know. Opportunities come along, especially if you are ready for
> one.
>
>
>> Roelof
>>
>>
> Oke,
>
> if you still wanted , it is fine with me that you mentor me.
> But I think we need to  find a way to make it work and I do not know if
> posting on the pharo ml is a good way to make it work because then we
> pollute the ML and other people can interfer.
>
> Do you have any ideas ?
> For me its fine that you send emails to my personal email.
>

Either way works for me, but I think discussing the issues on list will be
beneficial. There are a lot of other people out there who will have ideas
and different perspectives. And some of them might be able to answer your
questions more quickly than I could get to them.


> Roelof
>
>
>

Re: [Pharo-users] mentor wanted

[Roelof Wobben via Pharo-users]

--- Begin Message ---

  
  
Op 23-4-2020 om 23:00 schreef Richard
  Sargent:


  
  

  On Thu, Apr 23, 2020 at
12:14 PM Roelof Wobben  wrote:
  
  

  Op 23-4-2020 om 21:09 schreef Richard Sargent:
  
  

  
On Thu, Apr 23,
  2020 at 12:00 PM Roelof Wobben 
  wrote:


  
Op 23-4-2020 om 20:52 schreef Richard
  Sargent:


  

  On Thu,
Apr 23, 2020 at 3:32 AM Roelof Wobben
via Pharo-users 
wrote:
  
  Hello,

I like Pharo a lot but I hit a wall very
often.
With complex problems I do not see how
to solve things in small steps.
  
  
  
  I would be happy to help with the
Smalltalk and problem analysis aspects.
Unfortunately, I don't use Pharo much,
so I cannot help with it.
   
  
   
Is there somewhere who is willing to
mentor me in how I can overcome 
that problem.

Roelof


  

  


Pity, 


but if you could help me to learn how to divide
a complex problem in smaller steps , then I
think I can make it work in Pharo.   My problem
is more that then how to do it in Pharo. 

Do you then use gemtalk a lot.
Pity that I cannot make exercism challenges on
that.
And AdventOfCode do seem to difficult for a
beginner. 
  



Yes, I can help with those areas. I've been
  programming professionally and virtually
  exclusively in Smalltalk since 1991. 



I've been using GemStone/S since 2009 and now
  work for the manufacturer. I've been working with
  VA Smalltalk and its predecessors since 1994 and
  with VisualWorks since 2009.


I hear you about using GemStone/S. For most of
  its life, the assumption was that you would use a
  client Smalltalk like VA Smalltalk or VisualWorks
  to do your development work. Although, recently
  we've been working on Jadeite (https://github.com/GemTalk/Jadeite)
  to provide a development environment independent
  of GBS (which is what we used to connect VA
  Smalltalk and VisualWorks to GemStone/S).



   
Roelof

  

  

  
  
  
  Oke, I have heard of it  but because I could not find a
  course or book about gemstone and found a mooc about Pharo
  I choose that one. 

  
  
  
  Pharo is an excellent choice and the MOOC should help.
  
  
  
 
  But is there then much difference between Pharo and
  Gemstone or can I make a solution to a problem and use the
  same code for both. 

  
  
  
  There are many differences. Most notably, GemStone
 

Re: [Pharo-users] mentor wanted

[Richard Sargent]

On Thu, Apr 23, 2020 at 12:14 PM Roelof Wobben  wrote:

> Op 23-4-2020 om 21:09 schreef Richard Sargent:
>
> On Thu, Apr 23, 2020 at 12:00 PM Roelof Wobben  wrote:
>
>> Op 23-4-2020 om 20:52 schreef Richard Sargent:
>>
>> On Thu, Apr 23, 2020 at 3:32 AM Roelof Wobben via Pharo-users <
>> pharo-users@lists.pharo.org> wrote:
>>
>>> Hello,
>>>
>>> I like Pharo a lot but I hit a wall very often.
>>> With complex problems I do not see how to solve things in small steps.
>>>
>>
>> I would be happy to help with the Smalltalk and problem analysis aspects.
>> Unfortunately, I don't use Pharo much, so I cannot help with it.
>>
>>
>>> Is there somewhere who is willing to mentor me in how I can overcome
>>> that problem.
>>>
>>> Roelof
>>>
>>>
>>>
>> Pity,
>>
>>
>> but if you could help me to learn how to divide a complex problem in
>> smaller steps , then I think I can make it work in Pharo.   My problem is
>> more that then how to do it in Pharo.
>>
>> Do you then use gemtalk a lot.
>> Pity that I cannot make exercism challenges on that.
>> And AdventOfCode do seem to difficult for a beginner.
>>
>
> Yes, I can help with those areas. I've been programming professionally and
> virtually exclusively in Smalltalk since 1991.
>
> I've been using GemStone/S since 2009 and now work for the manufacturer.
> I've been working with VA Smalltalk and its predecessors since 1994 and
> with VisualWorks since 2009.
>
> I hear you about using GemStone/S. For most of its life, the assumption
> was that you would use a client Smalltalk like VA Smalltalk or VisualWorks
> to do your development work. Although, recently we've been working on
> Jadeite (https://github.com/GemTalk/Jadeite) to provide a development
> environment independent of GBS (which is what we used to connect VA
> Smalltalk and VisualWorks to GemStone/S).
>
>
>> Roelof
>>
>>
>
> Oke, I have heard of it  but because I could not find a course or book
> about gemstone and found a mooc about Pharo I choose that one.
>

Pharo is an excellent choice and the MOOC should help.


> But is there then much difference between Pharo and Gemstone or can I make
> a solution to a problem and use the same code for both.
>

There are many differences. Most notably, GemStone doesn't have a GUI.
However, there are many people using what's called "Develop in Pharo,
deploy in GemStone" with Seaside.


> For me programming is a hobby. In the Netherlands most companies use c#
> and with 53 and no XP I do not think its wise to  think I find a job as
> developer.
>

It's a good hobby. I wouldn't plan on finding a job, if I were you, but you
never know. Opportunities come along, especially if you are ready for one.


> Roelof
>
>

Re: [Pharo-users] mentor wanted

[Roelof Wobben via Pharo-users]

--- Begin Message ---

  
  
Op 23-4-2020 om 21:09 schreef Richard
  Sargent:


  
  

  On Thu, Apr 23, 2020 at
12:00 PM Roelof Wobben  wrote:
  
  

  Op 23-4-2020 om 20:52 schreef Richard Sargent:
  
  

  
On Thu, Apr 23,
  2020 at 3:32 AM Roelof Wobben via Pharo-users 
  wrote:

Hello,
  
  I like Pharo a lot but I hit a wall very often.
  With complex problems I do not see how to solve
  things in small steps.



I would be happy to help with the Smalltalk and
  problem analysis aspects. Unfortunately, I don't
  use Pharo much, so I cannot help with it.
 

 
  Is there somewhere who is willing to mentor me in
  how I can overcome 
  that problem.
  
  Roelof
  
  

  

  
  
  Pity, 
  
  
  but if you could help me to learn how to divide a complex
  problem in smaller steps , then I think I can make it work
  in Pharo.   My problem is more that then how to do it in
  Pharo. 
  
  Do you then use gemtalk a lot.
  Pity that I cannot make exercism challenges on that.
  And AdventOfCode do seem to difficult for a beginner. 

  
  
  
  Yes, I can help with those areas. I've been programming
professionally and virtually exclusively in Smalltalk since
1991. 
  
  
  
  I've been using GemStone/S since 2009 and now work for
the manufacturer. I've been working with VA Smalltalk and
its predecessors since 1994 and with VisualWorks since 2009.
  
  
  I hear you about using GemStone/S. For most of its life,
the assumption was that you would use a client Smalltalk
like VA Smalltalk or VisualWorks to do your development
work. Although, recently we've been working on Jadeite (https://github.com/GemTalk/Jadeite)
to provide a development environment independent of GBS
(which is what we used to connect VA Smalltalk and
VisualWorks to GemStone/S).
  
  
  
 
  Roelof
  

  

  



Oke, I have heard of it  but because I could not find a course or
book about gemstone and found a mooc about Pharo I choose that one.


But is there then much difference between Pharo and Gemstone or can
I make a solution to a problem and use the same code for both. 

For me programming is a hobby. In the Netherlands most companies use
c#  and with 53 and no XP I do not think its wise to  think I find a
job as developer. 

Roelof

  


--- End Message ---

Re: [Pharo-users] mentor wanted

[Richard Sargent]

On Thu, Apr 23, 2020 at 12:00 PM Roelof Wobben  wrote:

> Op 23-4-2020 om 20:52 schreef Richard Sargent:
>
> On Thu, Apr 23, 2020 at 3:32 AM Roelof Wobben via Pharo-users <
> pharo-users@lists.pharo.org> wrote:
>
>> Hello,
>>
>> I like Pharo a lot but I hit a wall very often.
>> With complex problems I do not see how to solve things in small steps.
>>
>
> I would be happy to help with the Smalltalk and problem analysis aspects.
> Unfortunately, I don't use Pharo much, so I cannot help with it.
>
>
>> Is there somewhere who is willing to mentor me in how I can overcome
>> that problem.
>>
>> Roelof
>>
>>
>>
> Pity,
>
>
> but if you could help me to learn how to divide a complex problem in
> smaller steps , then I think I can make it work in Pharo.   My problem is
> more that then how to do it in Pharo.
>
> Do you then use gemtalk a lot.
> Pity that I cannot make exercism challenges on that.
> And AdventOfCode do seem to difficult for a beginner.
>

Yes, I can help with those areas. I've been programming professionally and
virtually exclusively in Smalltalk since 1991.

I've been using GemStone/S since 2009 and now work for the manufacturer.
I've been working with VA Smalltalk and its predecessors since 1994 and
with VisualWorks since 2009.

I hear you about using GemStone/S. For most of its life, the assumption was
that you would use a client Smalltalk like VA Smalltalk or VisualWorks to
do your development work. Although, recently we've been working on Jadeite (
https://github.com/GemTalk/Jadeite) to provide a development environment
independent of GBS (which is what we used to connect VA Smalltalk and
VisualWorks to GemStone/S).


> Roelof
>
>

Re: [Pharo-users] mentor wanted

[Roelof Wobben via Pharo-users]

--- Begin Message ---

  
  
Op 23-4-2020 om 20:52 schreef Richard
  Sargent:


  
  

  On Thu, Apr 23, 2020 at 3:32
AM Roelof Wobben via Pharo-users 
wrote:
  
  Hello,

I like Pharo a lot but I hit a wall very often.
With complex problems I do not see how to solve things in
small steps.
  
  
  
  I would be happy to help with the Smalltalk and problem
analysis aspects. Unfortunately, I don't use Pharo much, so
I cannot help with it.
   
  
  

Is there somewhere who is willing to mentor me in how I can
overcome 
that problem.

Roelof


  

  


Pity, 


but if you could help me to learn how to divide a complex problem in
smaller steps , then I think I can make it work in Pharo.   My
problem is more that then how to do it in Pharo. 

Do you then use gemtalk a lot.
Pity that I cannot make exercism challenges on that.
And AdventOfCode do seem to difficult for a beginner. 

Roelof

  


--- End Message ---

Re: [Pharo-users] mentor wanted

[Richard Sargent]

On Thu, Apr 23, 2020 at 3:32 AM Roelof Wobben via Pharo-users <
pharo-users@lists.pharo.org> wrote:

> Hello,
>
> I like Pharo a lot but I hit a wall very often.
> With complex problems I do not see how to solve things in small steps.
>

I would be happy to help with the Smalltalk and problem analysis aspects.
Unfortunately, I don't use Pharo much, so I cannot help with it.


> Is there somewhere who is willing to mentor me in how I can overcome
> that problem.
>
> Roelof
>
>
>

Re: [Pharo-users] Embedding pharo in C++

[Roland Plüss via Pharo-users]

--- Begin Message ---
Thinking about it I would have a better idea: ITC.

The best solution though would be embedding like GNU Smalltalk has it.
But that's a question for Pablo. How feasible is it to have an embedded
working version in the near future?

That said both versions (embedded, ITC) would shared majority of code so
going one way or the other does not exclude the other way.

On 4/22/20 6:14 PM, Alexandre Bergel wrote:
> This is an exciting work Roland.
> Keep going! Bridging Pharo to other technologies is crucial, and you
> are doing well.
>
> Something you could do, is having Pharo running, on a different
> process, and exchanging (using a binary format) things between C++ and
> Pharo. We are doing this using CSharp and Python, and it works well.
>
> cheers,
> Alexandre
> -- 
> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
> Alexandre Bergel  http://www.bergel.eu
> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>
>
>
>> On 21-04-2020, at 09:04, Roland Plüss via Pharo-users
>> mailto:pharo-users@lists.pharo.org>> wrote:
>>
>>
>> *From: *Roland Plüss mailto:rol...@rptd.ch>>
>> *Subject: **Re: [Pharo-users] Embedding pharo in C++*
>> *Date: *21 April 2020, 09:04:56 GMT-4
>> *To: *Pharo Mailing List > >
>>
>>
>> The dragon has been unleashed. The game engine is now available to the
>> public. See https://www.indiedb.com/engines/dragengine for more
>> information.
>>
>> Right now the Smalltalk Script Module is a proof of concept with the GNU
>> Smalltalk. The idea is to change this to use Pharo and bringing it up to
>> the scope of the DragonScript module.
>>
>> The source code repository is at
>> https://github.com/LordOfDragons/dragengine . I'll add a branch
>> "feature-pharo" to contain all this work.
>>
>> Once Pharo is up to be used properly for embedding (or to help getting
>> there) this branch can be used. Since it is right now in a
>> proof-of-concept state I think it would be not a bad idea to experiment
>> with Pharo embedding there when not yet too many engine relate
>> complications are present.
>>
>> -- 
>> Yours sincerely
>> Plüss Roland
>>
>> Leader and Head Programmer
>> - Game: Epsylon ( http://www.indiedb.com/games/epsylon )
>> - Game Engine: Drag[en]gine ( http://www.indiedb.com/engines/dragengine
>> , http://dragengine.rptd.ch/wiki )
>> - As well as various Blender export scripts und game tools
>>
>>
>>
>

-- 
Yours sincerely
Plüss Roland

Game Development and Game Engine Technologies https://dragondreams.ch


signature.asc
Description: OpenPGP digital signature
--- End Message ---

Re: [Pharo-users] AST: Adding RBComment to a node

[Marcus Denker]

Hello,

I checked it in both Pharo8 and Pharo9: The good news is that it works fine in 
Pharo 9!

But I did not check how much work it would be to back port the fix...

> On 23 Apr 2020, at 11:13, Mehrdad Abdi  wrote:
> 
> Hello, 
> 
> How can I make a comment on a node dynamically? 
> 
> - Here is a code i've tried:
> 
> b:= RBParser parseMethod: 'foo self x: 2. x:=0. y:=8.'.
> node := b body statements at: 1.
> node comments: { RBComment with: 'comment' at: node stop + 1 }.
> b formattedCode.
> 
> - The result:
> 
> foo
>self x: 2.. x:=0. y
>x := 0.
>y := 8
> 
> - I expect:
> 
> foo
>self x: 2."comment"
>x := 0.
>y := 8
> 

Re: [Pharo-users] Non-blocking IO

[Richard O'Keefe]

Asynchronous I/O and non-blocking I/O are very different things.
The POSIX aio* functions are asynchronous, not non-blocking.
The "conventional" Unix way to do asynchronous I/O is to start a new
thread for the transfer.  The new thread uses ordinary synchronous
I/O and then responds to completion any way you want.  It is a rather
easier model to program for than asynchronous I/O.

On Mon, 20 Apr 2020 at 04:15, dturczanski  wrote:
>
> Hi guys,
>
> I'm wondering whether Pharo support any form of non-blocking IO. You can
> find such IO support in Node.js or Java NIO packages and on Linux they use
> select/poll async IO system calls.
>
> An example scenario is to be able to schedule 10 concurrent HTTP calls
> taking 1-5s and wait for them to finish. Naturally, if you perform the calls
> sequentially you'll wait for much longer than if you fire the calls
> concurrently.
>
> Is it possible in Pharo? I've only spent a few hours reading about the
> platform but I'm still not sure whether the built-in process/threading
> supports such scenario.
>
>
>
> --
> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html
>

[Pharo-users] mentor wanted

[Roelof Wobben via Pharo-users]

--- Begin Message ---

Hello,

I like Pharo a lot but I hit a wall very often.
With complex problems I do not see how to solve things in small steps.

Is there somewhere who is willing to mentor me in how I can overcome 
that problem.


Roelof


--- End Message ---

[Pharo-users] AST: Adding RBComment to a node

[Mehrdad Abdi]

Hello, 

How can I make a comment on a node dynamically? 

- Here is a code i've tried:

b:= RBParser parseMethod: 'foo self x: 2. x:=0. y:=8.'.
node := b body statements at: 1.
node comments: { RBComment with: 'comment' at: node stop + 1 }.
b formattedCode.

- The result:

foo
self x: 2.. x:=0. y
x := 0.
y := 8

- I expect:

foo
self x: 2."comment"
x := 0.
y := 8