- Pharo-users - lists.pharo.org

Re: [Pharo-users] Finding all references to an object

by Sean P. DeNigris

Marcus Denker-4 wrote: > > you need to take care: #become can be very slow. > Thanks for pointing that out. I'm finding a need for it, not in production, but as I eat my own dog food playing with my evolving systems, so speed is not an issue. Sean -- View this message in context: http://forum.world.st/Finding-all-references-to-an-object-tp3714218p3715339… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Aug. 3, 2011

Re: [Pharo-users] Tree-like workspace

by Janko MivÅ¡ek

S, Igor Stasenko piÅ¡e: >> But maybe you do not use the workspace the same way ;) > Same for me. I treat workspace in same way - for "fire and forget" > coding. So, personally, i don't feel much need for improving it and > introducing more than it has. > > But well, providing the way for organizing multiple workspaces could > be useful. For very organized persons :) Introduce tabs to workspace, with possibility to name them. VisualWorks has that and I actually find that useful. Because some scripts you write are usefull later too, and many times, so it is not bad idea to save them soewhere. Not yet in some methods in some class, but simply on workspace. And to avoid clutter of workspace windows opened, tabs come again to rescue! > >> >> Ben >> >> >> On Aug 2, 2011, at 9:52 PM, Ted F.A. van Gaalen wrote: >> >>> Hi there >>> >>> Well, perhaps you like this idea >>> (ideas are easier that programming, are they? :o) >>> >>> what about a workspace with >>> on the left a tree pane >>> with in the tree: saved workspaces >>> grouped under workspace "categories" >>> >>> e.g. >>> >>> aWorkspaceTree >>> +-aWorkspaceCategory >>> - aSavedWorkspace >>> - anotherSavedworkspace >>> +-yetAnotherWorkSpaceCategory >>> -yetAnotherSavedWorkspace >>> .. >>> + >>> >>> Greetings >>> Ted >>> >>> >>> >>> On Tue, Aug 2, 2011 at 8:25 PM, Benjamin >>> <benjamin.vanryseghem.pharo(a)gmail.com> wrote: >>>> >>>> On Aug 2, 2011, at 8:04 PM, Igor Stasenko wrote: >>>> >>>> On 2 August 2011 19:52, Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net> >>>> wrote: >>>> >>>> Hi all, >>>> >>>> >>>> I'm reading with great joy, various pharo/smalltalk related books to get a >>>> >>>> glimpse of what is available. I started with PBE and almost finished, then >>>> >>>> the Seaside Tutorial by HPI and the Moose. I'm just browsing them and make >>>> >>>> some things here and there using the Pharo image and workspaces to create >>>> >>>> documentation. Now I'm reading the Master Thesis "Scripting Browsers with >>>> >>>> Glamour" by Phillip Bunge and as I read about MVC this part: >>>> >>>> Reenskaug, however, never intended for the breaking of encapsulation that >>>> >>>> the pattern promotes. He wrote later that the âtop level goal was to support >>>> >>>> the userâs mental model of the relevant information space and to enable the >>>> >>>> user to inspect and edit this information.â >>>> >>>> I think that I want the same: support my own mental model when I'm exploring >>>> >>>> Pharo/Smalltalk. I have been a long user of Leo[1] mostly for documentation >>>> >>>> related matters and I would like to have this kind of tree-like WorkSpace in >>>> >>>> Pharo, instead of the plain one provided by default. So I will continue the >>>> >>>> reading of the thesis, but I would like to know if there is any package that >>>> >>>> can provide this support for my "leo alike mental of documentation" inside >>>> >>>> Pharo. If this is not the case, I think that trying to create this >>>> >>>> "TreeSpace" in replace of the usual WorkSpace will be my first projects. >>>> >>>> [1] http://webpages.charter.net/edreamleo/front.html >>>> >>>> Please let me know any thoughts or advices about this idea. >>>> >>>> >>>> I think you should take a look on Nautilus project (Ben, can you >>>> provide link/instructions?). >>>> >>>> https://ci.lille.inria.fr/pharo/job/Nautilus/ >>>> :) >>>> The tree-based browser is Nautilus (Nautilus2 is more basic) >>>> If someone has some questions, I will be glad to answer :) >>>> >>>> Ben >>>> >>>> It using trees instead of lists to display contents in browser. >>>> >>>> But i puzzled, what are use of trees in workspace? Maybe you meant browser? >>>> Because by looking at screenshots [1], it is closely similar to browser. >>>> Workspace in smalltalk is just a text editing area where you can type >>>> small snippets of code and then evaluate them. >>>> I see no way where trees could be of any use in workspace. >>>> >>>> [1]http://webpages.charter.net/edreamleo/screen-shots.html >>>> >>>> >>>> Cheers, >>>> >>>> Offray >>>> >>>> >>>> >>>> >>>> >>>> -- >>>> Best regards, >>>> Igor Stasenko AKA sig. >>>> >>>> >>>> >>> >> >> >> > > > -- Janko MivÅ¡ek Svetovalec za informatiko Eranova d.o.o. Ljubljana, Slovenija www.eranova.si tel: 01 514 22 55 faks: 01 514 22 56 gsm: 031 674 565

Aug. 3, 2011

Re: [Pharo-users] Finding all references to an object

by Marcus Denker

On Aug 3, 2011, at 8:45 AM, Pat Maddox wrote: > On Aug 2, 2011, at 11:40 PM, Sean P. DeNigris wrote: > >> >> Pat Maddox-3 wrote: >>> >>> become: swaps the two objects entirely, becomeForward: "replaces" >>> references with the argument. >>> >> >> Got it, thanks. The system tests (duh) for these are really clear. > > it's generally better to use becomeForward: unless you have a really good reason to use become: and it's generally better to use anything other than becomeForward: if you can. It's what dubya would call "the nukular opshin" > And you need to take care: #become can be very slow. It can (if not both objects are in the newspace of the GC) require to scan the *whole* memory. This is slow and performance degrades the more memory you use. The "fast bulk become" that is sometimes listed as a major innovation of the squeak vm is only related to becomming multiple objects: you can become a group of objects and traverse the memory only once. But as it does scan the whole memory. The sad thing is that a fast become would be really nice for many things... e.g. if you want to do highly dynamic stuff with proxies. Making objects remote, swap them, or have proxies for objects-not-yet there (futures)... But in practice #become is far too slow for these. We should change that. Marcus -- Marcus Denker -- http://marcusdenker.de

Aug. 3, 2011

Re: [Pharo-users] Finding all references to an object

by Pat Maddox

On Aug 2, 2011, at 11:40 PM, Sean P. DeNigris wrote: > > Pat Maddox-3 wrote: >> >> become: swaps the two objects entirely, becomeForward: "replaces" >> references with the argument. >> > > Got it, thanks. The system tests (duh) for these are really clear. it's generally better to use becomeForward: unless you have a really good reason to use become: and it's generally better to use anything other than becomeForward: if you can. It's what dubya would call "the nukular opshin"

Aug. 3, 2011

Re: [Pharo-users] Finding all references to an object

by Sean P. DeNigris

Pat Maddox-3 wrote: > > become: swaps the two objects entirely, becomeForward: "replaces" > references with the argument. > Got it, thanks. The system tests (duh) for these are really clear. -- View this message in context: http://forum.world.st/Finding-all-references-to-an-object-tp3714218p3714269… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Aug. 3, 2011

Re: [Pharo-users] Finding all references to an object

by Pat Maddox

On Aug 2, 2011, at 11:14 PM, Sean P. DeNigris wrote: > > Pat Maddox-3 wrote: >> >> becomeForward: ? >> > > Looks good, but what's the difference between become: and becomeForward: ? become: swaps the two objects entirely, becomeForward: "replaces" references with the argument. Check out the comments. But a basic example would be... | a b | a := 'foo'. b := 'foobar'. a becomeForward: b. "a = 'foobar' b = 'foobar'" | a b | a := 'foo'. b := 'foobar'. a become: b. "a = 'foobar' b = 'foo'"

Aug. 3, 2011

Re: [Pharo-users] Finding all references to an object

by Sean P. DeNigris

Pat Maddox-3 wrote: > > becomeForward: ? > Looks good, but what's the difference between become: and becomeForward: ? -- View this message in context: http://forum.world.st/Finding-all-references-to-an-object-tp3714218p3714230… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Aug. 3, 2011

Re: [Pharo-users] Finding all references to an object

by Pat Maddox

becomeForward: ? On Aug 2, 2011, at 11:04 PM, Sean P. DeNigris wrote: > I have an object, which I want to replace with a new object everywhere it > exists in the system. How do I do that? > > Thanks. > Sean > > -- > View this message in context: http://forum.world.st/Finding-all-references-to-an-object-tp3714218p3714218… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Aug. 3, 2011

Finding all references to an object

by Sean P. DeNigris

I have an object, which I want to replace with a new object everywhere it exists in the system. How do I do that? Thanks. Sean -- View this message in context: http://forum.world.st/Finding-all-references-to-an-object-tp3714218p3714218… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Aug. 3, 2011

Re: [Pharo-users] Tree-like workspace

by Igor Stasenko

On 2 August 2011 21:58, Benjamin <benjamin.vanryseghem.pharo(a)gmail.com> wrote: > It's not really hard to do, but I do not really get why it's interesting to have such a behavior > > > I mean, personally, when I use workspace, it's for junk programming (it write code quickly, test it) > So usually, I test my code in a workspace before putting it into a method (or it was just for test, and I do not care anymore). > > > But maybe you do not use the workspace the same way ;) > Same for me. I treat workspace in same way - for "fire and forget" coding. So, personally, i don't feel much need for improving it and introducing more than it has. But well, providing the way for organizing multiple workspaces could be useful. For very organized persons :) > > Ben > > > On Aug 2, 2011, at 9:52 PM, Ted F.A. van Gaalen wrote: > >> Hi there >> >> Well, perhaps you like this idea >> (ideas are easier that programming, are they? :o) >> >> what about a workspace with >> on the left a tree pane >> with in the tree: saved workspaces >> grouped under workspace "categories" >> >> e.g. >> >> aWorkspaceTree >> Â +-aWorkspaceCategory >> Â - aSavedWorkspace >> Â - anotherSavedworkspace >> +-yetAnotherWorkSpaceCategory >> Â Â -yetAnotherSavedWorkspace >> Â Â .. >> + >> >> Greetings >> Ted >> >> >> >> On Tue, Aug 2, 2011 at 8:25 PM, Benjamin >> <benjamin.vanryseghem.pharo(a)gmail.com> wrote: >>> >>> On Aug 2, 2011, at 8:04 PM, Igor Stasenko wrote: >>> >>> On 2 August 2011 19:52, Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net> >>> wrote: >>> >>> Hi all, >>> >>> >>> I'm reading with great joy, various pharo/smalltalk related books to get a >>> >>> glimpse of what is available. I started with PBE and almost finished, then >>> >>> the Seaside Tutorial by HPI and the Moose. I'm just browsing them and make >>> >>> some things here and there using the Pharo image and workspaces to create >>> >>> documentation. Now I'm reading the Master Thesis "Scripting Browsers with >>> >>> Glamour" by Phillip Bunge and as I read about MVC this part: >>> >>> Reenskaug, however, never intended for the breaking of encapsulation that >>> >>> the pattern promotes. He wrote later that the âtop level goal was to support >>> >>> the userâs mental model of the relevant information space and to enable the >>> >>> user to inspect and edit this information.â >>> >>> I think that I want the same: support my own mental model when I'm exploring >>> >>> Pharo/Smalltalk. I have been a long user of Leo[1] mostly for documentation >>> >>> related matters and I would like to have this kind of tree-like WorkSpace in >>> >>> Pharo, instead of the plain one provided by default. So I will continue the >>> >>> reading of the thesis, but I would like to know if there is any package that >>> >>> can provide this support for my "leo alike mental of documentation" inside >>> >>> Pharo. If this is not the case, I think that trying to create this >>> >>> "TreeSpace" in replace of the usual WorkSpace will be my first projects. >>> >>> [1] http://webpages.charter.net/edreamleo/front.html >>> >>> Please let me know any thoughts or advices about this idea. >>> >>> >>> I think you should take a look on Nautilus project (Ben, can you >>> provide link/instructions?). >>> >>> https://ci.lille.inria.fr/pharo/job/Nautilus/ >>> :) >>> The tree-based browser is Nautilus (Nautilus2 is more basic) >>> If someone has some questions, I will be glad to answer :) >>> >>> Ben >>> >>> It using trees instead of lists to display contents in browser. >>> >>> But i puzzled, what are use of trees in workspace? Maybe you meant browser? >>> Because by looking at screenshots [1], it is closely similar to browser. >>> Workspace in smalltalk is just a text editing area where you can type >>> small snippets of code and then evaluate them. >>> I see no way where trees could be of any use in workspace. >>> >>> [1]http://webpages.charter.net/edreamleo/screen-shots.html >>> >>> >>> Cheers, >>> >>> Offray >>> >>> >>> >>> >>> >>> -- >>> Best regards, >>> Igor Stasenko AKA sig. >>> >>> >>> >> > > > -- Best regards, Igor Stasenko AKA sig.

Aug. 3, 2011