This is an elaboration of some posts made in the discussion of SE-425: 128-bit Integer Types. I think it warrants sharing a little more broadly – not because most people ever need to care about this, but rather because it’s interesting. You might have noticed that the primitive types e.g.: …all conform to Codable (which… Read more
I really wish Swift releases would stop having major regressions in the ability to parse non-trivial expressions. The installation of a new version of Xcode – with a corresponding new Swift version & toolchain – should be a joyous occasion, not one I increasingly dread.
Matt Massicotte has a well-written, brief introduction to isolation in Swift. But it mostly just enumerates the state of things, without offering much guidance. One pitfall in particular is important to call out, regarding isolated protocols. These might seem pretty similar – you’d be forgiven for assuming it’s just a convenience to put @MainActor on… Read more
Most of the time we Swift programmers don’t really think about how our types – structs, classes, actors, enums, etc – are represented in memory. We just deal with them abstractly, knowing that somehow the compiler boils them down to a bunch of bytes, handling all the complexity of wrangling those bytes for us. However,… Read more
I forget this too often, and write things like: Sometimes I feel like I’m really just writing stress-tests for the Swift syntax parser. The above can actually be written a bit more simply, as: Not just fewer characters, but conceptually simpler – fewer nested parenthesis, and no nested string literals at all. See, print‘s function… Read more
If you try to copy a regular folder (what Xcode calls a “Group”) into a file list for any Build Phase, Xcode refuses. But it does work if you use a folder reference . I have been unable to deduce any reason for this.
This morning I tested out Apple’s Vision Pro in an Apple Store. And I’ve decided to write about it, mostly for my own future nostalgia, but also because my experience was markedly different to what’s been widely reported in tech news. I had intended to just buy an Apple Vision Pro on release day, but… Read more