Design by Contract на минималках: пишем assertions и улучшаем устойчивость на Go

Всем привет! Меня зовут Александр Иванов, я старший разработчик в YADRO, работаю над созданием средств управления элементами опорной сети и пишу на Go. Мы с командой разрабатываем продукт для сервисов сотовой связи — качество нашей работы влияет на пользовательский опыт тысяч людей. Поэтому часто мы ищем решения, как повысить устойчивость работы кода в продакшене. Об одном из таких решений я расскажу в этой статье. Design by Contract — подход к проектированию ПО, в котором взаимодействие компонентов системы основано на контрактах. Контракты описывают ожидания вызываемой и вызывающей функции и улучшают производительность кода.

https://habr.com/ru/companies/yadro/articles/888374/

#dbc #design_by_contract #defensive_programming #assertion #assert #продакшен #производительность

Well, this is interesting. Does the name D.B. Cooper ring a bell? It should, as that's the nom de plume of the only air pirate case that has never been solved. 57 years ago today, he jumped out of a commercial jet with a parachute and $200,000 and has, so far, gotten away scot free. It's seems now, however, that they might have their first new evidence since they soft-closed the case in 2016. #crime #airpirates #airlines #robbery #dbc... https://tylerknowsnothing.com/2024/11/24/well-this-is.html

Part1: From [2024-03-25 Mon]
#dailyreport #programming #tinkoff #dbc #embeddings #rl
At this week:

1) I solved small SQL task for a job, I used ChatGPT 🤹, I have
been choosing one of SELECT queries: subquery with aggregation
(that don't support indexes) and JOIN without aggregation but
with support of indexes. I chose subquery with aggregation.

2) I have been reading 📖 about:

2.1. *Design by contract* or contract programming - approach for
designing software. In Python there is only assert statement %),
and external packages: deal, icontract, PyContracts,
dpcontracts, zope.interface.

Popular languages with wide DbC support: Clojure, Kotlin, Racket.

2.2. *dlib* library - it is C++ implementation of Machine
Learning, Optimization, Graphical Model and image processing
algorithms. 웃 It is Portable, High Quality, documented and in
Design by contract, as authors declared. http://dlib.net/ml_guide.svg

(license allow to be used with both free and proprietary software projects)

Web development term of the week:

→ Design by Contract

https://webglossary.info/terms/design-by-contract/

#webdev #webdevglossary #dbc

Today's earworm

Cornell Campbell
Boxing Around

https://youtu.be/yOag5GH7uQk

A pure DBC record - I expect Lepke to come in any second

I can't find my copy of this in my record boxes - I want to play at my next outing!

#earworm #DBC

The most powerful Character in #DragonBall universe

#quitte #cat #everdayiscaturday #DragonBallclassic #DragonBallZ #dragonballsuper #DBC #dbz #dbs #ripakiratoriyama

Cease Fire Protest at DNC Headquarters Turns Violent
Organizers for Jewish Voice for Peace Action, which describes itself as the largest progressive Jewish anti-Zionist organization in the world and a coalition of groups, including If Not Now  organized what started out as a peaceful protest outside the headquarters of the Dem
https://newsviews.online/2023/11/16/cease-fire-protest-at-dnc-headquarters-turns-violent/
#News #Protests #Arrests #ceasefire #DC #DBC #Protests #teargas #Violence

LBank Exchange Listing DBear Coin (DBC)

Follow Us : @TheBlockchainCorner
Follow Us : @TheBlockchainCorner
Follow Us : @TheBlockchainCorner

#lbank #exchange #listing #dbear #dbc #cryotocurrency #bsc #binancesmartchain #polygon #matic #ethereum

La traversée d’un continent : Alexander Mackenzie et ses explorations de 1789 et 1793 vers l’océan Pacifique (plusieurs cartes illustrent le billet de Julie Stoner, Bibliothèque du Congrès)
https://blogs.loc.gov/maps/2023/07/the-crossing-of-a-continent/
Biographie de l'explorateur
http://www.biographi.ca/fr/bio/mackenzie_alexander_5F.htmlu
Carte ci-dessous affichée sur le site BAnQ : G 3400 1801 M3 CAR
https://collections.banq.qc.ca/ark:/52327/2244575
#LoC #BAnQ #cartographie #carte #océan #Pacifique #Arctique #exploration #découvertes #Amérique #Autochtone #géographie #histoire #biographie #DBC

Another week and eleven more (+50%) subscribers to the Safe Network Kbin magazine 🥳 (a #Reddit replacement).

You can follow directly from Mastodon or other fedi, no need for a #Kbin account.

To get notifications of development updates and test networks amongst other #SafeNetwork news, click and follow @happyborg@kbin.social

Or to join the discussions, or subscribe as a Kbin user go here:
https://kbin.social/m/SafeNetwork
#p2p #decentralization
#LocalFirst #CRDT #DBC

@mauve ditto and it is why I've been supporting, building demos and PoCs for #SafeNetwork since 2014.

It will be an app platform too, so ideal for building apps that are free for anyone, bypassing gatekeepers and roadblocks.

Keywords: #secure #p2p #LocalFirst #CRDT #decentralized #DBC #InternetArchive

Avevo sempre ignorato il #Podcast del #DunwitchBuyersClub (a.k.a. #DBC) sui #GiochiDaTavolo ma mi sono rapidamente ricreduto ed è diventato il mio secondo podcast preferito, dopo #PoweraPizzaPodcast (a.k.a. #PPP). Il format di unire analisi monografiche a veloci discussioni a 4 voci è effettivamente molto interessante, inoltre mi piace molto il fatto che non si limitino ad un'analisi tecnica ma proprio alla loro esperienza al tavolo.

#Boardgames #PodcastItaliani

https://pca.st/podcast/5328ddc0-13b6-0135-52f8-452518e2d253

Tomorrow, Nuria Penalva Arias and myself will have our respective oral presentation and poster session during the #ASLO2023 #PyrogenicCarbon session
#ASLO23 #PyC #BlackCarbon #DissolvedBlackCarbon #DBC
https://aslo.secure-platform.com/2023/solicitations/12/sessiongallery/863/application/5895
https://aslo.secure-platform.com/2023/solicitations/12/sessiongallery/1082/application/5755

@jfn En complément :
Biographie de Jules Fournier (Laurent Mailhot)
http://www.biographi.ca/fr/bio/fournier_jules_14F.html
#DBC #biographie #journalisme

@mfowler And not incidentally, #DesignByContract is a real thing in #SoftwareEngineering

https://en.wikipedia.org/wiki/Design_by_contract

Not only Bruce Schneier, but also Bertrand Meyer got that right.

#DBC

The Week On Wall Street - Pros And Cons

https://seekingalpha.com/article/4573218-the-week-on-wall-street-pros-and-cons?source=feed

#Fear&GreedTrader #ARKK #ASHR #KWEB #MCHI #SOXX #URNM #CWI #DBC #EEM #EPV #FEZ #FXI #GDX #GLD #IEV #IEZ #LQD #SLV #UNG #URA #XBI #XLE #XLF #XLK #XLV #XOP #SPY

@jfn
En complément :
Biographie de Charles McKiernan (c.1835-1889)
Par Jean Provencher (DBC)
http://www.biographi.ca/fr/bio/mckiernan_charles_11F.html
#DBC #biographie #société

Wall Street Breakfast: What Moved Markets

https://seekingalpha.com/article/4566319-wall-street-breakfast-what-moved-markets?source=feed

#WallStreetBreakfast #BTC-USD #ETH-USD #FTT-USD #SPRXX #TWTR #TSLA #URTH #BNDW #COST #CHTR #NCLH #NVDA #SPY #QQQ #IWM #TBT #TLT #SHY #JNK #LQD #USO #GLD #DBC #WMT #BBY #TGT #NKE #HAL #APA #SLB #CZR #CCL #KR

Wall Street Breakfast: Stockings Stuffed With Stocks

https://seekingalpha.com/article/4566143-wall-street-breakfast-stockings-stuffed-stocks?source=feed

#WallStreetBreakfast #BTC-USD #ETH-USD #FTT-USD #SPRXX #URTH #BNDW #TSLA #UCAR #MSFT #ATVI #QQQ #IWM #TBT #TLT #SHY #JNK #LQD #USO #GLD #DBC #SPY #AMC #MPW

@serizawa Object-Oriented Software Construction by Bertrand Meyer. For a limited time free here:
https://bertrandmeyer.com/OOSC2/
The standard work on #DesignByContract #DbC