01:29 <chancyk> Could anyone point me in the right direction of properly iterating over a `Array[FilePath] iso`

01:30 <chancyk> I'm working towards having actors asynchronously counting lines of files... I have this so far: https://gist.github.com/chancyk/4a0440897b5875cd3c2c84c9d2094454

01:31 <chancyk> refactored out the possible error raising code into the Main actor, as in the Supply Chain section of the Patterns Gitbook

01:31 <chancyk> so the separate actor is now receiving an iso of file paths, and now I'm in reference capability land ^ ^;

01:42 <SeanTAllen> taking a look chancyk

01:43 <SeanTAllen> question 1 chancyk, why is your _files variable an iso?

01:43 <SeanTAllen> do you have a reason for that or just learning and trying to get stuff working?

01:45 <SeanTAllen> Here's a working version chancyk: https://playground.ponylang.org/?gist=d4c531dd5420e6950a726432e738a4ff

01:46 <SeanTAllen> But I fixed it by not having the field be an `iso`. An iso field is rarely what you want.

01:46 <SeanTAllen> `ref` is an easier mutable to work with than `iso` so, only make it an `iso` when you need it.

01:47 <chancyk> I was mimicking the Supply Chain example just trying to get it working

01:47 <SeanTAllen> in this case, you need this to be mutable yes? but you wont be sharing it out this actor?

01:47 <SeanTAllen> is LineCounter going to need to share _lines with another actor?

01:47 <chancyk> I'm moving towards passing out files to actors to be processed concurrently

01:48 <SeanTAllen> ok but the _lines Array

01:48 <SeanTAllen> are you planning on passing that Array to other actors?

01:48 <chancyk> _files you mean? I don't think so, I'll probably read the files first and pass the file contents.

01:49 <SeanTAllen> ok

01:49 <SeanTAllen> in that case

01:49 <SeanTAllen> `ref` is easier to work with than `iso`

01:49 <SeanTAllen> go with the change i made

01:49 <SeanTAllen> _files is now a ref

01:49 <SeanTAllen> another question

01:49 <SeanTAllen> _files

01:49 <SeanTAllen> are you ever going to add or remove items from it once LineCounter is created?

01:51 <chancyk> Nope, just that initial list provided by glob

01:51 <SeanTAllen> ok then

01:52 <SeanTAllen> it doesnt need to be a ref

01:52 <chancyk> next I'm going to try to read them and farm out the contents to another actor

01:52 <SeanTAllen> here's an updated version: https://playground.ponylang.org/?gist=42045a3ca440d57201d81c9f23fd47bd

01:52 <SeanTAllen> a couple basic Pony rules when getting started

01:52 <SeanTAllen> start by making it a `val`

01:53 <SeanTAllen> if you need to mutate it, make it a `ref`

01:53 <SeanTAllen> if you need to change it and then share it with another actor, make it an `iso`

01:55 <chancyk> Awesome, that's working!... let's see what I run into next. : ) Thanks for your help.

01:56 <SeanTAllen> you're welcome

05:24 <scooter> Hi, I'm Scott Steele. I organize the Rust DC meetup (https://www.meetup.com/RustDC). I was wondering if there are any core Pony designers/contributors familiar enough with Rust (and with enough time) to talk to our group about Pony's reference capabilities and how they compare with Rust's ownership model...trade-offs, pros, cons, etc. (Or is someone could point me in the direction of someone else who might be willing...)

05:26 <scooter> s/Or is someone/Or if someone/

05:30 <jemc> scooter: hello and welcome

05:31 <jemc> unfortunately I'm personally not as familiar with Rust as I'd like to be (I've always wanted to pick it up)

05:32 <jemc> if you don't get a significant response from the IRC channel, you might try the mailing list

05:33 <jemc> though I think many of the regular contributors read the IRC logs, so you may get someone dropping in an answer tomorrow

05:35 <scooter> it looked like there was some cross-polination in the projects (e.g., the rfc process, the pony playground) so i think someone is definitely out there... thanks for your help... i wasn't sure where to direct my query so figured i'd just dive in here

05:35 <scooter> thanks! will keep an eye on this channel and ping the mailing list if nothing turns up here

05:38 <jemc> yes, we definitely have a lot of respect for the Rust project and community - I believe SeanTAllen is personal friends with someone on the Rust team, and IIRC we picked up your RFC process after they had a chat about it

05:39 <jemc> plietar was the one who ported the rust playground to pony - not sure how familiar he actually is with rust, but he might be

05:40 <jemc> also I seem to have a general feeling that theodus may be a rust user of some level, but I could be wrong about that

11:02 <SeanTAllen> I was also a contributor to Rust 1.0 in a small tiny way.

11:20 <doublec> It might be useful just to have someone talk about rcaps then the rust people can talk about the rust features and everyone can compare in real time.

20:59 <SeanTAllen> AND... I finally did it: "Pony Performance Cheatsheet" => https://www.ponylang.org/reference/pony-performance-cheatsheet/

21:02 <jmiven> awesome!