Ace Rust Macros ♠️ the declarative kind

[@ultrapoci]

Assigning "Bob" to variable "a" and "Alice" to variable "b" is just evil

[@ohturry5591]

Lol😂

[@ohturry5591]

It’s an sql relationship 🤫

[@codetothemoon]

hah, in retrospect that was a poor choice 🙃

[@ThanhNguyen-lk6ns]

It's a quantum teleportation 🤣

[@furo.v]

I was going to comment the same thing lol

[@robinmoussu]

I definitively love your style. Clear, short, on-topic!

[@codetothemoon]

Thanks Robin!!

[@TripleNipplFishh]

I have to say, you really got the best Rust content. exactly the right tempo and right hints

[@codetothemoon]

thanks so much!

[@perc-ai]

This is the best rust macro video on KZbin! Looking forward to all your future videos your quickly brecoming an industry leader

[@codetothemoon]

wow thanks for the kind words! I really enjoy making them!

[@asnafix]

love your explanation style, simple, clear and well structured

[@codetothemoon]

Thanks Tryo!

[@AceofSpades5757]

That was a really good, light introduction into Rust's declarative macros. Thanks!

[@codetothemoon]

Thanks AceofSpades! It's almost as if the title and thumbnail were speaking directly to you 🙃

[@eduardopereira2431]

Your Rust content its been incredible useful! Thank you!

[@codetothemoon]

Thanks Eduardo, thanks for watching!

[@Ma1ne2]

Loving these Rust videos so much, great to follow along and learn something new :) Keep them coming!

[@codetothemoon]

Thanks Noxdor, glad you are finding them valuable! more to come!

[@BrandonCharlesHouser]

In VS Code, if you hold alt and then press the up or down arrow it will move the line you are on or your entire selection up or down. It's great for reorganizing switch statements, if else ladders, and just re-organizing code.

[@codetothemoon]

ahh didn't know about this, thank you!

[@egorsozonov7425]

It’s not great, it’s terrible. Pressing Alt and arrows at the same time requires you to move your hand very far from the home row! Better editors like Neovim have saner hotkeys as well as a way to reassign them arbitrarily

[@sparky173j]

Thankyou for this and all your other videos. I usually prefer learning these things from video demos over documentation. I've been procrastinating adding macros to my project. I'll probably mostly be using derive macros, but I think declarative macros will be a good place to start.

[@codetothemoon]

Thanks for watching tev. I really enjoy making them, especially when I get comments like this! Declarative macros can be a great place to start (though you don't have to). Will probably be making a custom derive video at some point...

[@Akshay-be3qx]

Really cool way to explain. Thanks for taking time to make awesome videos.

[@codetothemoon]

Thanks for watching Akshay!

[@perc-ai]

Hey there’s a new wave of rust developers especially after all the news that rust is changing everything… would love to see more videos from you

[@codetothemoon]

Thanks Zah, more are on the way!

[@learntry9074]

Each video by you is to the point, and really it has helped me a lot. E.g, the video on 'result', I knew Result enum, but after watching it I learned the use case for map_err. Thank you

[@jeffg4686]

Found an interesting syntax today, which is tuple pattern matching, where all elements of the tuple value can become 'wildcard' matches / variables'.

[@codetothemoon]

I find this feature super handy, I think it's called "destructuring"!

[@jeffg4686]

@@codetothemoon - yeah, it's destructuring, but never seen it before in this context (matching).

[@HyperFocusMarshmallow]

Great introduction!!! It would be cool if you did one or a few follow ups of more advanced macros.

[@ErikSchierboom]

Lovely video! Love your pacing

[@tuanlam999]

Great concise content. Rust to the moon 🙂

[@codetothemoon]

Thanks Tuan! 🌙

[@rockNbrain]

Great job bro!!

[@codetothemoon]

Thank you, glad you liked it!

[@tonhom260]

Love the way you teach us ,thank❤❤

[@eddex.]

Why did the "thing = 5" variable match the "a arm"? And how can it match "a" when there's no variable called "a"?

[@theaiguy_]

That is because a can be anything, 5 included, so it matches.

[@theaiguy_]

Usually the general case is named "_", but really can be anything

[@kavehtehrani]

@@theaiguy_ thank you kind stranger!

[@aksakalaradhita]

Man, you should have "in-depth rust" series

[@codetothemoon]

would love to make such a thing!

[@glebbash]

Great stuff, sounds like macros are not that scary after all.

[@codetothemoon]

Thanks, indeed they are not! 😎

[@advanceringnewholder]

I wish you deep dive into procedural macro. I'm having a hard time wrapping my head around it.

[@codetothemoon]

yeah i'd love to do this. i actually started writing a video about it awhile back but found it really difficult to present it in a clear way in the KZbin video format

[@pierreniberon1801]

Firstly, nice thumbnail, and then, nice video 👍

[@codetothemoon]

Thanks Pierre!

[@artursradionovs9543]

Does anyone know how to implement Stripe and JWT in rust for e-commerce

[@codetothemoon]

I second this. I've been mulling a Stripe video for some time, definitely a huge area of interest. For JWT / OAuth in Rust I actually did a video on that several months ago

[@artursradionovs9543]

@@codetothemoon no official docs available. I love Rust a lot, but it takes a lot of time as a beginner to pick this up. My goal is to develop a small Android Native App with Actix as a backend framework, but note sure if I will succeed. Rust really is harder than Java, Python or JS.

[@Daveiac]

Is there a way to specify the types of elements to the set? Like what if you were to do set!(1,"2",'3'), would it compile?

[@ianakotey]

Nah, compiler would infer their types are different and reject

[@codetothemoon]

yeah like Ian mentions, the HashSet itself has to be of a specific type so this wouldn't compile - this isn't related to the macro itself, it would still happen if you tried to do that directly with HashSet::from

[@legends_assemble4938]

Can u create a video on getting started with procedural macros.

[@codetothemoon]

I'd love to do that, and I actually started writing a script on at least one occasion, but I've found them to be incredibly challenging to explain in a simple way. I'll come back to it at some point 😎

[@legends_assemble4938]

@@codetothemoon Thanks for considering my request 💛💛

[@AzureFlash]

3:39 Trolling is a art

[@codetothemoon]

If I trolled it wasn't intentional! 🙃

[@africknchickn_YT]

if you do a similar walkthrough for proc macros, I *will* subscribe. In my experience, building a custom derive is a more common use case that I wish I had the time to learn in detail how to do, as opposed to defining and parsing a new DSL. So (if you're taking votes...) my vote would be for doing a recursive derive of structs and enums! If not, then no worries :) I'll still be around. Cheers dude!

[@codetothemoon]

Nice, I've been thinking a lot about a proc macro video. I've found it incredibly challenging to explain those concepts in a concise and digestable way - I think it can be done though! Thanks for watching!

[@edgeeffect]

​@@codetothemoon yeah! I've just been watching "9 rules for procedural macros" and my head is still swimming.

[@advanceringnewholder]

​@@codetothemoonCheering on that. I hope you'll make that video and adding it to the knowledge pool of easy to digest video. Take your time

[@ozkavoshdjalla]

It was cool! Thanks

[@codetothemoon]

Thanks for watching Ozkavosh!

[@narayanbhat3279]

shouldn't you first create an empty hashset and then push each of the elements into the set?

[@codetothemoon]

That would work too. I'm honestly not sure which approach is more efficient.

[@diwakargupta0]

Awesome 🙌🙌

[@codetothemoon]

glad you found it valuable!

[@KyuuKun16]

Your videos are AMAZING, would you consider making one delving deeper into concurrency?

[@codetothemoon]

Thanks Jason, I'd love to do one on concurrency - it's already on the video idea list!

[@grindarius661]

What kind of theme are you using? It is so cool and I wanted to know the name of it.

[@codetothemoon]

Thanks, it's Sonokai!

[@arnimlost]

@@codetothemoon what font are you using?

[@zencephalon]

Great stuff!

[@codetothemoon]

Thanks Matthew!

[@ambuj.k]

What is your vscode theme in this video?

[@codetothemoon]

Sonokai

[@codeplay4947]

What is your color theme

[@codetothemoon]

Sonokai

[@codeplay4947]

@@codetothemoon Do you mean Monokai...I couldn't find Sonokai

[@alurma]

ty

[@codetothemoon]

you're welcome thanks for watching!

[@glennmiller394]

Thanks!

[@codetothemoon]

Thanks for watching Glenn!

[@jaromor8808]

what's up with that extra/last comma in the dbg! output?

[@van3ll0pe]

C > rust I love c

[@codetothemoon]

What do you like most about C that Rust falls short on? What issues do you think C has that could be addressed in a future language?

[@not_ever]

@@codetothemoon Rust doesn't segfault enough. A real language segfaults at least three times before breakfast.

[@Elduque40]

Do you have Rust for beginners?

[@codetothemoon]

Check out "Rust Demystified"! It goes straight to the heart of what makes Rust different from other languages

[@phenanrithe]

The best I've read is this book: Programming Rust by Jason Orendorff, Jim Blandy, and Leonora F .S. Tindall, O'Reilly. It covers the last 2021 edition, is superbly written and covers all the topics by explaining everything with a good learning curve. I've heard good things about The Rust Programming Language by Steve Klabnik and Carol Nichols, no starch press, but it's outdated (a new edition should be available later next year).

[@tsalVlog]

we call it the mustache brace around here.

[@codetothemoon]

nice! sounds far better than "curly braces"

[@kennethbeal]

"Aces!" - 16 Candles

[@codetothemoon]

Hah, I had to look this up!

[@tactics40]

nit: println takes a string literal, not a slice. One of the hallmarks of a macro is that it can distinguish the two whereas functions can't.

[@codetothemoon]

Ahh good point I was sort of using those terms interchangeably, but like you say in the world of macros they are different!

[@banocean]

Tbh your videos now are kinda let's do thing I can read in the docs/rust book :/

[@codetothemoon]

thanks for the feedback. I only make videos on topics that are covered in the Rust book if I think i can offer a different approach and explanation that makes it easier to understand, which was the case for this video. Another example would be the one on interior mutability. Maybe I missed the mark on this one!

[@Singlton]

Bro, your tutoriall are amazing, post discord or telegram groups please♥️🙏

[@marcelo55869]

𝓑𝓛𝓐𝓩𝓘𝓝𝓛𝓨 𝓕𝓐𝓢𝓣