- Pharo-dev - lists.pharo.org

Negative number syntax
by Sven Van Caekenberghe Jan. 15, 2020

Jan. 15, 2020

Hi, I came across the following quirk that surprised me. Positive number in a arbitrary radix 16rA = 10 Same number but negative -16rA = -10 I guess, we all know that. However, the following is also possible 16r-A = -10 I did not know that, but OK. But what about this one ? -16r-A = 10 I understand that the double negation is positive again, but do we really want to support such a syntax ? Sven

2 2

Characterizing Pharo Code: A Technical Report
by Oleksandr Zaytsev Jan. 15, 2020

Jan. 15, 2020

Hello, We have analyzed the source code of the 50 projects selected from the Pharo ecosystem and reported our findings in this document: https://hal.inria.fr/hal-02440055v1 Perhaps, you will find it interesting. Here are some fun facts that we have discovered: - 25% of classes have no more than 3 methods in them, and 50% of classes have no more than 6 methods - The average number of lines of code in Pharo methods is 5.8, the median of this number is 3, meaning that 50% of methods have no more than 3 lines. - About a quarter of source code are message sends (method names) - they take 27.3% of source code tokens and 26.3% of characters. - On a character level, 22.5% of source code are string literals, and 19.4% are literal arrays. Together literals take 44% of characters in source code, but only 7.1% of tokens. - Positive statements are much more common than negative ones. ifTrue: is used 3 times more often than ifFalse:. Similarly, ifTrue:ifFalse: is 26 times more common than ifFalse:ifTrue:. - After tokenizing the code of 151,717 methods, splitting identifier names by camel case, and removing non-alphabetic characters, we received a sequence of almost 3 million words (e.g. ... ordered collection with all command line arguments...). This sequence contains only 8,211 unique words (including all misspellings such as arrray, clipped words such as arr, and nonsense words such as ddd or xdkh). Compare this to over 40,000 unique words used in roughly the same amount of printed English prose. - At least 5,480 of those 8,211 unique alphabetic sequences are valid English words. Have a nice day, and let us know what you think. We would be happy to receive your feedback. Oleks

3 2

Smalltalk meetup in Palo Alto, CA on January 25, 2020
by Alexandre Bergel Jan. 15, 2020

Jan. 15, 2020

Dear Friends and Colleagues, We are organizing a Smalltalk meetup in Palo Alto, CA, on Saturday 25 January, 2020. The event is free, thanks to Lam Research, Object Profile, Semantics for sponsoring the event. More information may be found on https://agileartificialintelligence.github.io/meetup.html People who wish to attend, then the webpage contains the registration links. Please, join! Kind regards, Alexandre & Juan Pablo -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

1 0

Pharo Quality Rules for Beginners
by ESTEBAN VILLALOBOS DIAZ Jan. 15, 2020

Jan. 15, 2020

Hello everyone! My name is Esteban and I will be working on the Pharo Quality Rules for the next few months. The goal is to create different profiles for the rules according to the programming experience of the user. For example, for the beginner profile we would like to check for common mistakes made by people who are just starting with Pharo like: - Sending self as a message (probably because they forgot a . ) - Using False instead of false - etc.. I would appreciate it if you could share with me other common mistakes that you have seen beginners do, or maybe tell me a bit of your own experience when you started using Pharo :) Best, Esteban Villalobos

1 0

[Pharo 8.0] Build #1106: 5481-Metacello-logs-now-prints-lots-of-new-lines
by ci-pharo-ci-jenkins2＠inria.fr Jan. 14, 2020

Jan. 14, 2020

There is a new Pharo build available! The status of the build #1106 was: FAILURE. The Pull Request #5484 was integrated: "5481-Metacello-logs-now-prints-lots-of-new-lines" Pull request url: https://github.com/pharo-project/pharo/pull/5484 Issue Url: https://github.com/pharo-project/pharo/issues/5481 Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

1 0

[Pharo 9.0] Build #6: Made metalinks installable on ast nodes by selecting code when browsing methods in Calypso
by ci-pharo-ci-jenkins2＠inria.fr Jan. 14, 2020

Jan. 14, 2020

There is a new Pharo build available! The status of the build #6 was: SUCCESS. The Pull Request #5455 was integrated: "Made metalinks installable on ast nodes by selecting code when browsing methods in Calypso" Pull request url: https://github.com/pharo-project/pharo/pull/5455 Issue Url: https://github.com/pharo-project/pharo/issues/Enhancing Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

1 0

GitHub Organizations 1...*Infinity
by Sean P. DeNigris Jan. 14, 2020

Jan. 14, 2020

It seems we have a new Pharo GH organization every day! There is for example (pharo-project, pharo-vcs, pharo-rdbms...). The problem is that each of these creates another entry point that must be known to users, and therefore another list for us to manually maintain, and we know the struggle of keeping docs in sync quite well. My question is: why can't we consolidate into a few general buckets (like one for official and one for community) and manage the categorization with GH topics (a.k.a. tags) and teams? Here's a discussion of this idea: https://github.community/t5/How-to-use-Git-and-GitHub/Structuring-repositor… IIUC you can use teams to scope the access for each repo. With topics/tags, someone could just go to the one organization and search for vcs or rdbms to see a list of just those repos. Here's an example of a saved search like that: https://github.com/atom/?utf8=â&q=topic%3Apackage&type=&language= ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

1 0

Reserving/allocating some slots in the specialObjectsArray for DoubleByteArray, WordArray and DoubleWordArray
by Eliot Miranda Jan. 14, 2020

Jan. 14, 2020

Hi All, currently the following slots in the specialObjectsArray are unused in both Squeak and Pharo (& I suspect Cuis). newArray at: 32 put: nil. "was the prototype Float" newArray at: 33 put: nil. "was the prototype 4-byte LargePositiveInteger" newArray at: 34 put: nil. "was the prototype Point" The specialObjectsArray already contains ByteArray newArray at: 27 put: ByteArray. I would like to have a full set of little-endian unsigned integer arrays. In Spur Squeak these are ByteArray, DoubleByteArray, WordArray (Bitmap is big endian), and DoubleWordArray. The VM's at:[put:] directly supports these four at the JIT level giving us efficient unsigned access. There is also efficient signed access for some signed arrays but these are less useful (at least in theVM simulator). I want to make all four unsigned integer array classs available to plugins etc via the interpreterProxy. So here's a formal request to reserve these values for use as follows: newArray at: 27 put: ByteArray. ... newArray at: 32 put: DoubleByteArray. newArray at: 33 put: WordArray. newArray at: 34 put: DoubleWordArray. _,,,^..^,,,_ best, Eliot

2 1

Iceberg: Why create branch when Reviewing a PR?
by Sean P. DeNigris Jan. 13, 2020

Jan. 13, 2020

When reviewing a pull request, when merging, why does Iceberg prepend the repo name to the branch? It seems to require one to manually checkout the issue branch (and remember not to checkout any packages) in order to modify the code, no? ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

1 0

Re: [Pharo-dev] [Vm-dev] [squeak-dev] Reserving/allocating some slots in the specialObjectsArray for DoubleByteArray, WordArray and DoubleWordArray
by Eliot Miranda Jan. 13, 2020

Jan. 13, 2020

Hi Levente, On Mon, Jan 13, 2020 at 2:21 PM Levente Uzonyi <leves(a)caesar.elte.hu> wrote: > Hi Eliot, > > While we're extending specialObjectsArray, it may make sense adding > FloatArray and the currently non-existent Float64Array as well. > Good point. An at:[put:] primitive pair for Float64Array makes sense too. > Levente > > On Mon, 13 Jan 2020, Eliot Miranda wrote: > > > Hi All, > > currently the following slots in the specialObjectsArray are unused > in both Squeak and Pharo (& I suspect Cuis). > > > > newArray at: 32 put: nil. "was the prototype Float" > > newArray at: 33 put: nil. "was the prototype 4-byte LargePositiveInteger" > > newArray at: 34 put: nil. "was the prototype Point" > > > > The specialObjectsArray already contains ByteArray > > newArray at: 27 put: ByteArray. > > > > I would like to have a full set of little-endian unsigned integer > arrays. In Spur Squeak these are ByteArray, DoubleByteArray, WordArray > (Bitmap is big endian), and DoubleWordArray. The VM's at:[put:] directly > supports > > these four at the JIT level giving us efficient unsigned access. There > is also efficient signed access for some signed arrays but these are less > useful (at least in theVM simulator). > > > > I want to make all four unsigned integer array classs available to > plugins etc via the interpreterProxy. So here's a formal request to > reserve these values for use as follows: > > newArray at: 27 put: ByteArray. > > ... > > newArray at: 32 put: DoubleByteArray. > > newArray at: 33 put: WordArray. > > newArray at: 34 put: DoubleWordArray. > > > > _,,,^..^,,,_ > > best, Eliot > > > > > > -- _,,,^..^,,,_ best, Eliot

1 0