| 00:24 | <MikeSmith> | gwicke: annevk |
| 01:41 | <gwicke> | MikeSmith: thanks, might try again next week |
| 04:36 | <annevk> | gwicke: bug in Gecko then |
| 11:47 | <annevk> | gwicke: I reopened the bug |
| 15:00 | <benjamingr__> | Domenic: I noticed something interesting - `filter` is much harder to implement than `map` with async iterators. |
| 15:01 | <benjamingr__> | I have all sorts of pyramids, anywhere I can check an existing implementation? |
| 16:49 | <annevk> | gwicke: turns out wanderview already fixed it elsewhere, such a great person |
| 17:27 | <Domenic> | benjamingr__: async function* filter(ai, cb) { for await (const e of ai) { if (await cb(e)) { yield e; } } } |
| 17:27 | <Domenic> | benjamingr__: can omit the await before cb(e) if you only want sync predicates |
| 17:27 | <MikeSmith> | do JavaScript-engine implementations actually ever need to have code that directly corresponds to so ES slots, or are slots just a conceptual feature of the spec |
| 17:28 | <MikeSmith> | and of other specs that define things in terms of ES slots |
| 17:28 | <benjamingr__> | Domenic: I meant without having async generators - also, I noticed async generators aren't working in babel and they used to - any idea why? |
| 17:28 | <Domenic> | benjamingr__: sure, if you only use half the proposal, using the proposal is hard. |
| 17:28 | <Domenic> | benjamingr__: no idea |
| 17:29 | <Domenic> | MikeSmith: they need to produce all the observable features of the slots existing, so usually the easiest way to implement that is with some kind of slot-like thing (which I know for a fact V8 and JSC have) |
| 17:29 | <benjamingr__> | Domenic: well, since I'm doing it to understand the proposal - I think it's fair to place such a constraint on myself. |
| 17:30 | <benjamingr__> | Just like implementing map/filter on iterators without having generators. |
| 17:32 | <Domenic> | benjamingr__: maybe Babel originally implemented the now-withdrawn observable version of async generators and they never got around to implementing the stage 2 version. |
| 17:36 | <MikeSmith> | Domenic: OK, thanks. And the slot stuff came along in ES6 and after, right? I don’t remember anything about it being in ES5.1 or before. Or maybe there was another name previously? hmm, but if so I don’t know what it would have been. |
| 17:36 | <Domenic> | MikeSmith: no, it was in ES5, just with a more-confusing name "internal properties" I believe. |
| 17:36 | <MikeSmith> | aha |
| 17:37 | <MikeSmith> | geez |
| 17:37 | <MikeSmith> | OK |
| 17:37 | <MikeSmith> | well clearly I was overthinking this |
| 17:37 | <MikeSmith> | thanks |
| 17:37 | <Domenic> | (It was confusing since they did not behave like properties at all, e.g. no prototypal inheritance.) |
| 17:37 | <Domenic> | anytime! |
| 17:37 | <MikeSmith> | yup agreed about the old name |
| 17:38 | <MikeSmith> | and now that I understand “slots” seems very much the apt name |
| 17:39 | MikeSmith | now goes back to reading the spec he was reading before he distracted himself |
| 18:38 | <benjamingr__> | Domenic: ah, do you have any presentation about that? |
| 18:39 | <benjamingr__> | I was asked to talk about async iterators and to be frank I'm clueless about where things stand in ES, I can give an hour long talk about async iterators in Python but that'd be mega-lame. I want to show off async generators as an alternative to observables for many use cases and as a concurrency primitive on its own. |
| 19:33 | <zcorpan> | I unchecked "allow merge commits" for html |
| 19:42 | <annevk> | zcorpan: great, we should do that everywhere |
| 19:44 | <zcorpan> | i can do that |
| 19:49 | <zcorpan> | dnoe |
| 22:18 | <MikeSmith> | zcorpan++ |
| 22:22 | <MikeSmith> | annevk: I wonder if we should now update the TEAM.md to drop the instructions about how to merge a PR branch manually |
| 22:23 | <MikeSmith> | anyway, for now let’s see if this thing actually works |
| 22:23 | MikeSmith | pushes the green button on libpackage-deprecationmanager-perl |
| 22:23 | <MikeSmith> | oofs |
| 22:23 | MikeSmith | pushes the green button on libpackage-deprecationmanager-perl |
| 22:23 | <MikeSmith> | christ |
| 22:25 | <MikeSmith> | hot diggety dog https://github.com/whatwg/html/commit/78806b0a466dd8f1f04fdcd5bc51ca002ccbf31f |