Ace Rust Macros ♠️ the declarative kind

Рет қаралды 37,842

Күн бұрын

A fast and concise but gentle introduction to writing declarative macros in Rust. The code from this video can be found here github.com/Me163/youtube/tree...
-
Stuff I use to make these videos - I absolutely love all of these products. Using these links is an easy way to support the channel, thank you so much if you do so!!!
Camera: Canon EOS R5 amzn.to/3CCrxzl
Monitor: Dell U4914DW 49in amzn.to/3MJV1jx
Lens: Sigma 24mm f/1.4 DG HSM Art for Canon EF amzn.to/3hZ10mz
SSD for Video Editing: VectoTech Rapid 8TB amzn.to/3hXz9TM
Microphone: Rode NT1-A amzn.to/3vWM4gL
Microphone Interface: Focusrite Clarett+ 2Pre amzn.to/3J5dy7S
Tripod: JOBY GorillaPod 5K amzn.to/3JaPxMA
Keyboard: Redragon Mechanical Gaming Keyboard amzn.to/3I1A7ZD
Mouse: Razer DeathAdder amzn.to/3J9fYCf
Computer: 2021 Macbook Pro amzn.to/3J7FXtW
Caffeine: High Brew Cold Brew Coffee amzn.to/3hXyx0q
More Caffeine: Monster Energy Juice, Pipeline Punch amzn.to/3Czmfox
Building A Second Brain book: amzn.to/3cIShWf

Пікірлер: 110

@ultrapoci Жыл бұрын

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

@ohturry5591 Жыл бұрын

Lol😂

@ohturry5591 Жыл бұрын

It’s an sql relationship 🤫

@codetothemoon Жыл бұрын

hah, in retrospect that was a poor choice 🙃

@ThanhNguyen-lk6ns Жыл бұрын

It's a quantum teleportation 🤣

@furo.v Жыл бұрын

I was going to comment the same thing lol

@robinmoussu Жыл бұрын

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

@codetothemoon Жыл бұрын

Thanks Robin!!

@perc-ai Жыл бұрын

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

@codetothemoon Жыл бұрын

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

@AceofSpades5757 Жыл бұрын

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

@codetothemoon Жыл бұрын

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

@eduardopereira2431 Жыл бұрын

Your Rust content its been incredible useful! Thank you!

@codetothemoon Жыл бұрын

Thanks Eduardo, thanks for watching!

@Ma1ne2 Жыл бұрын

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

@codetothemoon Жыл бұрын

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

@tryoasnafi4340 Жыл бұрын

love your explanation style, simple, clear and well structured

@codetothemoon Жыл бұрын

Thanks Tryo!

@BrandonCharlesHouser 11 ай бұрын

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 11 ай бұрын

ahh didn't know about this, thank you!

@egorsozonov7425 3 ай бұрын

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

@luccao173 5 ай бұрын

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

@codetothemoon 5 ай бұрын

thanks so much!

@learntry9074 Жыл бұрын

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

@Akshay-be3qx Жыл бұрын

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

@codetothemoon Жыл бұрын

Thanks for watching Akshay!

@sparky173j Жыл бұрын

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 Жыл бұрын

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...

@jeffg4686 Жыл бұрын

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

@codetothemoon Жыл бұрын

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

@jeffg4686 Жыл бұрын

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

@perc-ai Жыл бұрын

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 Жыл бұрын

Thanks Zah, more are on the way!

@ErikSchierboom Жыл бұрын

Lovely video! Love your pacing

@HyperFocusMarshmallow Жыл бұрын

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

@pup4301 Жыл бұрын

Hey remember you can use the rust language reference to help under stand the token syntax of a macro!

@codetothemoon Жыл бұрын

Agree, it's a great resource!

@tonhom260 9 ай бұрын

Love the way you teach us ,thank❤❤

@tuanlam999 Жыл бұрын

Great concise content. Rust to the moon 🙂

@codetothemoon Жыл бұрын

Thanks Tuan! 🌙

@aksakalaradhita 9 ай бұрын

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

@codetothemoon 9 ай бұрын

would love to make such a thing!

@africknchickn_YT Жыл бұрын

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 Жыл бұрын

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 Жыл бұрын

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

@advanceringnewholder 4 ай бұрын

@@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 Жыл бұрын

It was cool! Thanks

@codetothemoon Жыл бұрын

Thanks for watching Ozkavosh!

@zencephalon Жыл бұрын

Great stuff!

@codetothemoon Жыл бұрын

Thanks Matthew!

@diwakargupta0 Жыл бұрын

Awesome 🙌🙌

@codetothemoon Жыл бұрын

glad you found it valuable!

@pierreniberon1801 Жыл бұрын

Firstly, nice thumbnail, and then, nice video 👍

@codetothemoon Жыл бұрын

Thanks Pierre!

@glebbash Жыл бұрын

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

@codetothemoon Жыл бұрын

Thanks, indeed they are not! 😎

@glennmiller394 Жыл бұрын

Thanks!

@codetothemoon Жыл бұрын

Thanks for watching Glenn!

@KyuuKun16 Жыл бұрын

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

@codetothemoon Жыл бұрын

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

@AzureFlash Жыл бұрын

3:39 Trolling is a art

@codetothemoon Жыл бұрын

If I trolled it wasn't intentional! 🙃

@advanceringnewholder 4 ай бұрын

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

@codetothemoon 3 ай бұрын

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 KZfaq video format

@alurma Жыл бұрын

@codetothemoon Жыл бұрын

you're welcome thanks for watching!

@tsalVlog 10 ай бұрын

we call it the mustache brace around here.

@codetothemoon 10 ай бұрын

nice! sounds far better than "curly braces"

@kennethbeal Жыл бұрын

"Aces!" - 16 Candles

@codetothemoon Жыл бұрын

Hah, I had to look this up!

@grindarius661 Жыл бұрын

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

@codetothemoon Жыл бұрын

Thanks, it's Sonokai!

@arnimlost Жыл бұрын

@@codetothemoon what font are you using?

@Daveiac Жыл бұрын

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 Жыл бұрын

Nah, compiler would infer their types are different and reject

@codetothemoon Жыл бұрын

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

@jaromor8808 Жыл бұрын

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

@narayanbhat3279 Жыл бұрын

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

@codetothemoon Жыл бұрын

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

@van3ll0pe Жыл бұрын

C > rust I love c

@codetothemoon Жыл бұрын

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 Жыл бұрын

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

@legends_assemble4938 Жыл бұрын

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

@codetothemoon Жыл бұрын

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 Жыл бұрын

@@codetothemoon Thanks for considering my request 💛💛

@artursradionovs9543 Жыл бұрын

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

@codetothemoon Жыл бұрын

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 Жыл бұрын

@@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.

@ambuj.k Жыл бұрын

What is your vscode theme in this video?

@codetothemoon Жыл бұрын

Sonokai

@tactics40 Жыл бұрын

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 Жыл бұрын

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

@eddex. Жыл бұрын

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

@theaiguy_ 7 ай бұрын

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

@theaiguy_ 7 ай бұрын

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

@kavehtehrani Ай бұрын

@@theaiguy_ thank you kind stranger!

@Polynuttery 4 ай бұрын

What did you mean that “a” matches on 5 ?

@codeplay4947 Жыл бұрын

What is your color theme

@codetothemoon Жыл бұрын

Sonokai

@codeplay4947 Жыл бұрын

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

@Elduque40 Жыл бұрын

Do you have Rust for beginners?

@codetothemoon Жыл бұрын

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

@phenanrithe Жыл бұрын

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).

@banocean 5 ай бұрын

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

@codetothemoon 5 ай бұрын

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!