Re: Swift generics, circular type declarations, and segfaults, oh my!
Re: Swift generics, circular type declarations, and segfaults, oh my!
- Subject: Re: Swift generics, circular type declarations, and segfaults, oh my!
- From: Jonathan Mitchell <email@hidden>
- Date: Sun, 06 Sep 2015 22:20:16 +0100
> On 6 Sep 2015, at 21:19, Quincey Morris <email@hidden> wrote:
>
> I’ve been thinking about the implications of this for a couple of days now. Of course, you should file a Radar if you see some compiler behavior that looks like it ought to work. But I think there’s a higher order problem that’s worth noting.
>
> In my experience (which is to say, after a couple of months spent converting a fair-sized app from Obj-C to Swift), converting an Obj-C implementation to directly an “equivalent” Swift implementation is a lousy experience with poor results. There are several waves of consequences from the attempt:
>
> 1. You struggle to find a Swift equivalent of your Obj-C code. It takes forever.
>
> 2. You find your equivalent code ends up wordier and somehow more "unfactored" than the Obj-C code, even though it is somehow “the same”. You hate using it.
>
> 3. You fiddle with the Swift implementation (leaving Obj-C behind, finally) to make it a bit more streamlined. It takes forever.
>
> 4. You crash the compiler AND SourceKit, because you’ve ventured into uncharted territory in order to hide an Obj-C-derived mess behind Swift syntax. You have to look for workarounds at least until the next Xcode beta.
>
Very interesting indeed. This is the sort of ‘from the trenches' report we need.
I did a few days work on my own fair substantially app with regard to Swift integration / conversion and made a reluctant gut instinct decision to stay with Obj-C (even though I really wanted to utilise Swift). There was just too much stuff (KVO, bindings etc) that didn’t feel like a good fit with Swift within an established project.
Jonathan
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| References: | |
| | >Swift generics, circular type declarations, and segfaults, oh my! (From: has <email@hidden>) |
| | >Re: Swift generics, circular type declarations, and segfaults, oh my! (From: Fritz Anderson <email@hidden>) |
| | >Re: Swift generics, circular type declarations, and segfaults, oh my! (From: has <email@hidden>) |
| | >Re: Swift generics, circular type declarations, and segfaults, oh my! (From: Quincey Morris <email@hidden>) |
| | >Re: Swift generics, circular type declarations, and segfaults, oh my! (From: has <email@hidden>) |
| | >Re: Swift generics, circular type declarations, and segfaults, oh my! (From: Quincey Morris <email@hidden>) |
| | >Re: Swift generics, circular type declarations, and segfaults, oh my! (From: Charles Srstka <email@hidden>) |
| | >Re: Swift generics, circular type declarations, and segfaults, oh my! (From: has <email@hidden>) |
| | >Re: Swift generics, circular type declarations, and segfaults, oh my! (From: Quincey Morris <email@hidden>) |