Peculiar inheritance of enum

It turns out that Swift 3 nested enums combine options, but it's not inheritance. It's a little know "feature" you should be aware of when designing API with Swift 3. I didn't know that, and my (I have to admit reasonable assumption) lead to the problem that can't be easily…

Conditional Swift testing

The problem Some tests need to be skipped when executing on CI (continuous integration like travis.org). What tests? In my case, it's performance tests. Why? because I can't trust all CI results and sometimes, randomly, some tests will fail without good reason, like this one: error: testPerformance : failed: The…

Package.swift - manual

Here is documentation for SPM manifest file Package.swift. I couldn't find a list of possible configuration values for Package.swift, so I created one, for future reference. I put here all available settings, with examples of use. Please find examples at the end of the post. Preamble Package.swift…

Documenting Swift protocol

In Swift, I can write documentation at a protocol level now. There is a kick-ass feature added recently to Xcode 8 (beta 4). If I add documentation of function at the protocol level, it's available at the level of implementation. look, I wrote documentation to Task.run() and I can…