July 2009 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] SmalltalkImage current platformName [WAS] Re: Baseline test results on pharo core 10392

by Damien Cassou

On Wed, Jul 29, 2009 at 5:20 PM, Andreas Wacknitz<A.Wacknitz(a)gmx.de> wrote: > When I learned object orientation one of the first things I > encountered was: > "Procedural code makes decisions, object oriented code delegates." > Or, sometimes simply: "Tell, don't ask!". > For me this looks like asking... I agree but this would be a good start I think. -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

July 29, 2009

Re: [Pharo-project] SmalltalkImage current platformName [WAS] Re: Baseline test results on pharo core 10392

by Andreas Wacknitz

Am 29.07.2009 um 15:54 schrieb Damien Cassou: > 2009/7/29 Mariano Martinez Peck <marianopeck(a)gmail.com>: >> >> On Tue, Jul 28, 2009 at 5:39 PM, Igor Stasenko <siguctua(a)gmail.com> >> wrote: >>> >>> I think that all such kind of queries (like isXXXPlatform) should be >>> not included and not used in a well-designed system. >>> If you want some capability - then you should ask directly for it, >>> irrespectively on what platform you are currently running. >> >> I am agree. I really believe in the phrase "tell don't ask". >> However, I have >> a couple of things to say: >> >> 1) It is not as easy as it seems. If you want to delegate to >> another object >> and be polymorphic regarding the platform you must reify a couple >> of classes >> (in your slash it is easy because you have the File hierarchy). I >> mean, you >> cannot put everything in the Platform class. And this must be done >> in every >> place. You must really understand that piece of code to change it. >> I can do >> this in my projects, but I don't know about to do it everywhere. > > The class OSPlatform is quite small. I would vote for: > > - implementing the following methods > > OSPlatform>>isMacOSX > ^ false > OSPlatform>>isWin32 > ^ false > OSPlatform>>isUnix > ^ false > > and then > > MacOSXPlatform>>isMacOSX > ^ true > UnixPlatform>>isUnix > ^ true > Win32Platform>>isWin32 > ^ true > > - when you want to test the platform, just do: > > OSPlatform current isMacOSX > > or > > OSPlatform current isWin32 > > What do you think? When I learned object orientation one of the first things I encountered was: "Procedural code makes decisions, object oriented code delegates." Or, sometimes simply: "Tell, don't ask!". For me this looks like asking... Regards Andreas

July 29, 2009

[Pharo-project] A question about Gofer

by StÃ©phane Ducasse

Hi I would like to know if Gofer is also working deconnected. I often work in places where internet connection is not working and I would love to see my loading scripts checking my local cache for loading packages. If this is not there yet, Lukas may be I could add this features to Gofer? Stef

July 29, 2009

Re: [Pharo-project] Fwd: weird problem in pharo 10392 and 10395

by Damien Cassou

2009/7/29 Fabrizio Perin <fabrizio.perin(a)gmail.com>: > I just realized that may the problem is related to run a single test method > from the method lists of the test class using crtl+t. Please open a bug report -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

July 29, 2009

Re: [Pharo-project] SmalltalkImage current platformName [WAS] Re: Baseline test results on pharo core 10392

by Damien Cassou

On Wed, Jul 29, 2009 at 4:02 PM, Igor Stasenko<siguctua(a)gmail.com> wrote: > How about shortcut methods then? > > OSPlatform class>>isMacOSX > Â ^ self current isMacOSX Not sure it is that useful but I don't really care. -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

July 29, 2009

[Pharo-project] Fwd: weird problem in pharo 10392 and 10395

by Fabrizio Perin

I just realized that may the problem is related to run a single test method from the method lists of the test class using crtl+t. cheers, Fabrizio ---------- Forwarded message ---------- From: Fabrizio Perin <fabrizio.perin(a)gmail.com> Date: 2009/7/29 Subject: weird problem in pharo 10392 and 10395 To: pharo-project(a)lists.gforge.inria.fr Hi,I'm having some weird problem with pharo version 10392 and 10395. Running some tests some time happen that the image freeze. This happen also answering yes to the question "bla bla do you want debug bla bla" when a test fail or have some problem. Some one may can reproduce it in other context. Cheers, Fabrizio

July 29, 2009

[Pharo-project] weird problem in pharo 10392 and 10395

by Fabrizio Perin

Hi,I'm having some weird problem with pharo version 10392 and 10395. Running some tests some time happen that the image freeze. This happen also answering yes to the question "bla bla do you want debug bla bla" when a test fail or have some problem. Some one may can reproduce it in other context. Cheers, Fabrizio

July 29, 2009

Re: [Pharo-project] SmalltalkImage current platformName [WAS] Re: Baseline test results on pharo core 10392

by Igor Stasenko

2009/7/29 Damien Cassou <damien.cassou(a)gmail.com>: > 2009/7/29 Mariano Martinez Peck <marianopeck(a)gmail.com>: >> >> On Tue, Jul 28, 2009 at 5:39 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: >>> >>> I think that all such kind of queries (like isXXXPlatform) should be >>> not included and not used in a well-designed system. >>> If you want some capability - then you should ask directly for it, >>> irrespectively on what platform you are currently running. >> >> I am agree. I really believe in the phrase "tell don't ask". However, I have >> a couple of things to say: >> >> 1) It is not as easy as it seems. If you want to delegate to another object >> and be polymorphic regarding the platform you must reify a couple of classes >> (in your slash it is easy because you have the File hierarchy). I mean, you >> cannot put everything in the Platform class. And this must be done in every >> place. You must really understand that piece of code to change it. I can do >> this in my projects, but I don't know about to do it everywhere. > > The class OSPlatform is quite small. I would vote for: > > - implementing the following methods > > OSPlatform>>isMacOSX > Â ^ false > OSPlatform>>isWin32 > Â ^ false > OSPlatform>>isUnix > Â ^ false > > and then > > MacOSXPlatform>>isMacOSX > Â ^ true > UnixPlatform>>isUnix > Â ^ true > Win32Platform>>isWin32 > Â ^ true > > - when you want to test the platform, just do: > > OSPlatform current isMacOSX > > or > > OSPlatform current isWin32 > > What do you think? > How about shortcut methods then? OSPlatform class>>isMacOSX ^ self current isMacOSX etc... > -- > Damien Cassou > http://damiencassou.seasidehosting.st > > "Lambdas are relegated to relative obscurity until Java makes them > popular by not having them." James Iry > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- Best regards, Igor Stasenko AKA sig.

July 29, 2009

Re: [Pharo-project] SmalltalkImage current platformName [WAS] Re: Baseline test results on pharo core 10392

by Damien Cassou

2009/7/29 Mariano Martinez Peck <marianopeck(a)gmail.com>: > > On Tue, Jul 28, 2009 at 5:39 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: >> >> I think that all such kind of queries (like isXXXPlatform) should be >> not included and not used in a well-designed system. >> If you want some capability - then you should ask directly for it, >> irrespectively on what platform you are currently running. > > I am agree. I really believe in the phrase "tell don't ask". However, I have > a couple of things to say: > > 1) It is not as easy as it seems. If you want to delegate to another object > and be polymorphic regarding the platform you must reify a couple of classes > (in your slash it is easy because you have the File hierarchy). I mean, you > cannot put everything in the Platform class. And this must be done in every > place. You must really understand that piece of code to change it. I can do > this in my projects, but I don't know about to do it everywhere. The class OSPlatform is quite small. I would vote for: - implementing the following methods OSPlatform>>isMacOSX ^ false OSPlatform>>isWin32 ^ false OSPlatform>>isUnix ^ false and then MacOSXPlatform>>isMacOSX ^ true UnixPlatform>>isUnix ^ true Win32Platform>>isWin32 ^ true - when you want to test the platform, just do: OSPlatform current isMacOSX or OSPlatform current isWin32 What do you think? -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

July 29, 2009

Re: [Pharo-project] SmalltalkImage current platformName [WAS] Re: Baseline test results on pharo core 10392

by Damien Cassou

2009/7/29 Mariano Martinez Peck <marianopeck(a)gmail.com>: > On Wed, Jul 29, 2009 at 5:11 AM, Damien Cassou <damien.cassou(a)gmail.com> > wrote: >> >> 2009/7/28 Mariano Martinez Peck <marianopeck(a)gmail.com>: >> > MacOSXPlatform isActivePlatform >> > >> > In all places? Obviously, the same with the other platforms. >> > >> > Is there a reason I don't see? >> >> I don't like this solution because it depends on the existence of the >> MacOSXPlatform class which is an implementation detail. > > Why you say MacOSXPlatform is an implementation detail? Perhaps we can ask > this messages to SmalltalkImage and then this delegates to the platform? Because this version forces the class MacOSXPlatform to exist in the image. It adds a strong dependency on the implementation of the Platform library (namely having classes for each kind of platform). -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

July 29, 2009