April 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Better debugging...

by Alexandre Bergel

All Smalltalk (and Java profilers) tells us which method call stack appears the most during an execution. This is pretty poor. "What are the objects that makes an execution slow?" and "Which are message arguments responsible of a slow execution?" are the two questions I will probably work on for the next two years. We already have some preliminary: http://www.bergel.eu/download/papers/Berg10aProfiling.pdf More to come in a few days. Same thing for debugging. Why should I see the execution as a bunch of stack frame? "How to set a breakpoint based on the object state?" "Are all objects responsible for an odd execution or is there just a particular one?" "What is the exact difference of execution if I slightly change a method?" "If I call #foo it works, if I call #foo2 it does not work. Why? What are the objects that appears with #foo2 that do not appear with #foo?" All these questions are essential in my opinion. Code profiler and code debugger are pretty poor. I can continue with test code coverage tools. After all, Computer Science is a pretty young science. Cheers, Alexandre On 25 Apr 2011, at 07:34, Craig Latta wrote: > > Hi Alexandre-- > >> Debugging, as well as profiling, is a topic that everybody got it >> wrong. We still debug an application in oo in the same way that >> people debugged their C program: thinking in term of call stack and >> stack frame instead of objects. > > So tell us more! :) How do you express causality? > > > -C > > -- > Craig Latta > www.netjam.org/resume > +31 06 2757 7177 > + 1 415 287 3547 > > > > -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

April 25, 2011

Re: [Pharo-project] removing versions from configurations

by Dale Henrichs

On 04/25/2011 03:51 AM, Tudor Girba wrote: > Hi, > > The Moose build broke because the 'default' version was removed from ConfigurationOfRPackage. > > I fixed it now by using #stable, but that is not the issue. > > I understand the need for cleaning, but we should be aware that removing versions from configurations can have far reaching ripple effects. +100 Dale

April 25, 2011

Re: [Pharo-project] [Metacello] Which packages should we include of metacello for Pharo 1.3?

by Dale Henrichs

On 04/24/2011 12:03 PM, Mariano Martinez Peck wrote: > > > On Sun, Apr 24, 2011 at 5:59 PM, Dale Henrichs <dhenrich(a)vmware.com > <mailto:dhenrich@vmware.com>> wrote: > > Mariano, > > (excluding the OB-Metallo menu items) ... > > > hi dale. What does it mean exactly? If right now I am loading : > #('Metacello-Core' 'Tutorial' 'UI' 'Metacello-ProfStef' > 'Metacello-Help'); and #('Tests') > you mean I should remove the group 'UI' ? Yes ... I don't know if anyone beyond me ever used them and eventually they will be replaced by the MetacelloBrowser ... if you think folks were using the Metacello menus, then leave them in ....

April 25, 2011

Re: [Pharo-project] Find and replace doesn't accept with Enter key

by Mariano Martinez Peck

On Mon, Apr 25, 2011 at 5:08 PM, Lukas Renggli <renggli(a)gmail.com> wrote: > I assume you are referring to the find dialog in OmniBrowser. No. I am talking about the Find and Replace of PharoCore. When you are inside a method and you press CMD + F > This has > been fixed for Pharo 1.2 a long time ago, you just need to take/merge > the code from my repository. > yes I know :) Now ConfigurationOfOmnibrowser has you very latest versions and it is all working great :) > > Lukas > > On 25 April 2011 16:50, Mariano Martinez Peck <marianopeck(a)gmail.com> > wrote: > > Hi alain. If I do cmd + f and I type something in the input, the only way > to > > get the cursor in the result is by clickling in the "search" button. I > would > > expected to be able to hit enter in addition. > > What do you think? > > > > > > Thanks > > > > -- > > Mariano > > http://marianopeck.wordpress.com > > > > > > > > -- > Lukas Renggli > www.lukas-renggli.ch > > -- Mariano http://marianopeck.wordpress.com

April 25, 2011

Re: [Pharo-project] Find and replace doesn't accept with Enter key

by Lukas Renggli

I assume you are referring to the find dialog in OmniBrowser. This has been fixed for Pharo 1.2 a long time ago, you just need to take/merge the code from my repository. Lukas On 25 April 2011 16:50, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > Hi alain. If I do cmd + f and I type something in the input, the only way to > get the cursor in the result is by clickling in the "search" button. I would > expected to be able to hit enter in addition. > What do you think? > > > Thanks > > -- > Mariano > http://marianopeck.wordpress.com > > -- Lukas Renggli www.lukas-renggli.ch

April 25, 2011

Re: [Pharo-project] Better debugging...

by StÃ©phane Ducasse

> @Adrian Lienhard > Does that ring a bell? :D > > -> Object Flow VM... Yes I prosposed this topic to adrian :) Now I would like the get an halt on any attempt for example to modify an array. this would be good. Stef

April 25, 2011

[Pharo-project] Find and replace doesn't accept with Enter key

by Mariano Martinez Peck

Hi alain. If I do cmd + f and I type something in the input, the only way to get the cursor in the result is by clickling in the "search" button. I would expected to be able to hit enter in addition. What do you think? Thanks -- Mariano http://marianopeck.wordpress.com

April 25, 2011

[Pharo-project] Fix proposed to make alt+t open a transcript in PharoCore 1.3

by Damien Cassou

http://code.google.com/p/pharo/issues/detail?id=4093 -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

April 25, 2011

Re: [Pharo-project] Better debugging...

by Mariano Martinez Peck

On Mon, Apr 25, 2011 at 10:34 AM, StÃ©phane Ducasse < stephane.ducasse(a)inria.fr> wrote: > Hi guys > > I'm chasing a strange bug since a couple of hours and what I would love to > have is > the possibility to change an instance variable into an object that says > stop each time you are changed from this flow. > > What about a proxy object plus certain logic in the interception that using thisContext knows whether to stop or to forward to a target object ? -- Mariano http://marianopeck.wordpress.com

April 25, 2011

Re: [Pharo-project] Better debugging...

by Alexandre Bergel

Debugging, as well as profiling, is a topic that everybody got it wrong. We still debug an application in oo in the same way that people debugged their C program: thinking in term of call stack and stack frame instead of objects. Alexandre Le 25 avr. 2011 Ã 04:34, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> a Ã©crit : > Hi guys > > I'm chasing a strange bug since a couple of hours and what I would love to have is > the possibility to change an instance variable into an object that says stop each time you are changed from this flow. > > Stef

April 25, 2011