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If you have already started playing with swift, you probably thought about how to include third party libraries into your project or how to distribute yours. Apple provides a mechanism to distribute code via frameworks (eventually, for iOS too), so making a custom framework, which will include both ObjC and …
In Swift – the new programming language introduced by Apple – functions are first class citizens. This basically means, that a function can be passed as a parameter, returned from another function or assigned to a value. It allows us to do a lot of useful stuff with them. Function …
The title sounds pretty strange, but I will explain what it means. While playing with Swift I’ve faced weird behaviour, a feature in fact, which isn’t covered in documentation (at least I didn’t find any references!). UPD: shame on me, how could I miss this? Global constants and variables are …
TL; DR; This article describes how to refactor and improve readability of complex data processing with syntax similar to Haskell do-notation and State monad. Motivation Latest project I’ve been involved in deals with a lot of data processing.Typical case was a method that receives a data chunk and chains it …
If you are doing some books/docs writing or attempting to create your first book, you might get interested in this exceptionally nice tool – gitbook. It is a technical book building tool that allows you to embed code samples and exercises, and then generate a great online book that can …
Rspec provides a bunch of build-in matchers. They include matchers that help us work with boolean values. But not always these matchers are safe to use. be_true and be_false matchers I guess everybody used RSpec matchers be_true and be_false. There are a few examples with them: # be_true examples it{ …
I believe every ruby developer has faced time comparison issue at least once and tests are one of the possible areas where it may happen. RSpec message like this may confuse: confirmed_at should have been changed to Mon, 24 Mar 2014 09:47:22 UTC, but is now Mon, 24 Mar 2014 …
Elixir is a functional language built on top of Erlang VM. Therefore it uses Erlang mechanism for communication with nodes. Erlang has one simple rule: everyone connects to everyone. It provides a simple authentication mechanism by tokens called cookie. In this article I want to show how to use remote …
This tutorial describes how to create Clang plugin and covers the next things: environment setupbasic plugin setupsetup Xcode project for plugin developmentwarnings reportingerrors reportingXcode integrationinteractive hints for errors/warnings riddance tl;dr Clang Rocks!!! You can find the plugin here. Intro While working on BloodMagic, I realised that it’d be nice to …
While investigating existing automated tools for mobile TDD, we have run into a well-documented and supported library by Xamarin. It’s called calabash, comes with iOS and Android support and has a wide scope of supported user actions, gestures and expectations.The only drawback we found significant is lack of native Rspec …