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Honestly speaking this is probably the single most confusing aspect of Rust I faced, much more so than the whole ownership thing. I think it might be down to how little attention it was given in various Rust learning resources (Rust Book in particular). It took me several months of scratching my head and smushing my face into the screen, combined with extensive experimenting on my personal projects for me to fully understand the whole system, and you sir managed to do it under 20 minutes. God damn. Mad respect.

I have read many blogs before getting the gist of the module system of rust. Actually the only thing I needed was this video lol

It's nice that you've kept the format of videos on fundamentals similar to your coverage of the rust book, it's like having an extended version!

Oh, man, you saved me! I was about to give up and head back home because I was overwhelmed by the complexity of these modules. But then I stumbled upon you, and now I feel like I'm back in a playground, ready to tackle anything

Yeah, the modules did confuse me a lot. During this video I was thinking: "Oh, okay, now I finally get it. How great he explains it so clear." and then I remember that the video is actually called "Explained Like I'm 5". Now I feel I have to study programming as if I was five :-D

I've googled "ho to use modules in Rust" so so many time. It is a pleasure to see such a useful, straight forward explanation on that topic. loop { 👍}

This is by far the best explanation of Rust module system I've seen (or read) so far. Very thoroughly explained. I've reentered the Rust orbit after almost two years again and had forgotten about the intricacies of the Rust module concept in the mean time. Now I feel like I am back on track again. This video is pure gold. Thanks!

A great video, that's cleared the a major point of confusion up for me. It's like 'use' has been overridden, like 'static' in C - for external module use, it's 'importing' and 'simplifying' external crate components, whereas for local modules it's merely 'simplifying' part of the local module. So subtly different actions, but with the same name. You've clarified that for me, so thanks!

I was reading Chapter 7 of the Rust Book and found the example a little confusing so I searched for an alternative source of information abuot modules in Rust. This was just what I needed. Thank a lot Rusty!!!

Excellent video! Really appreciate how you broke this down.

God, thank you. I was so confused about modules. Having read dozens of documents about this topic getting even more confused. Now everything makes sense.

Thank you. I think that this video is much more informative than the module episode of the rust book series and the chapter of the rust book itself!! I was bugged thinking about a module not "export itself" but being declared in the parent module

You're a legend. Learning Rust as my first coding language and am going to binge watch your videos to help accelerate the process. Thank you so much for taking the time to put these videos together 🙌🏾🙏🏾🔥

Perfect screen size / text. Great video.

You made these easy for me to understand. Now I understand how Rust's module system works. thank you.

This is the best explanation that I have found so far. Rust modules were a little bit confusing because they work differently from how organisation of code world in other languages.

Many might already have said this, but this was the achilles heel of my rust experience so far... Thank you very much for making this video!

As a JS developer I need more videos like this. Thanks

Very good explanation! Modules should be explaind again and again beacuse they are vital part of rust encapsulation approach.

Excellent pace of the video. These videos are perfect as I try to learn and start using Rust!

Nice and detailed explanation of a confusing subject in Rust! I'll still have to play around a bit...but this was really insightful !

👍Great job! I'd like to learn more about benchmarking/profiling of Rust code. Another thing that is confusing is why we need to write anon lifetime specifier _ (underline) . I see it in very often in trait/struct decl/def.

Great topic! Took something that can be difficult to understand and presented it in a simple step by step presentation! My favorite!

That's precisely what i needed, a simple, concise and comprehensive explanation. Now i got it, thanks a lot!

AMAZING explanation and step-by-step tutorial, thank you!

THANK YOU for this! Modules finally clicked for me! Request: a similar video (or videos) breaking down Cargo crates. For example, crates with multiple binaries and projects with nested Cargo configs.

Really nice well rounded and concise presentation, thanks!

Awesome , Clear understanding ❤ Thanks for this video 🎉

Hi! Please include this video in the let's get rusty tutorial series. It's really helpful in visualizing the module system, especially the refactoring approach you took. And exploring the 2018 pattern (came across this in the wild and I was quite confused )

The best explanation about Rust´s module system I got! This is all really confusing, but now it seems to make some sense 😊 Thank you!

HOLY COW , this is TEH hands down best explenation on the net for Rust Newcommers! This Explains Use vs Mod perfect! Thank you so much!

This is such a helpful channel whenever I try to learn a bit more about rust thank you!

Great video and channel in general, you answered all my questions i had.

Thank you for this quick explanation, much appreciated.

Wathed 3 tuturials. This one clearly stands out! 👍

Your explaination was perfect! Great job

Amazing Video. Out of so many I've watched on this topic, this is the one that made everything click for me. Thank you

Nice video! Now I finally understand the Rust modules and project structure. As there are 2 approaches mentioned in this video to struct the modules and project files, may I know which one approach is more popular or is most used in the practice? Thanks a lot!

Really well described! I'd love if you could make a video about async/await as well as how it differs from its implementation in more popular languages like Javascript. This topic has always been tricky to wrap my head around. I think a lot of viewers would benefit from a solid explanation LGR style :)

It would be nice if you cover cross development and debugging for the Raspberry Pi and it would also be nice to cover using Rust for embedded systems (no runtime), for example on Arduino.

Well done. This is exactly what I needed!

Kindly cover some (design) patterns in how to export rust functions to swift and kotlin via FFI. Thank you, your video on rust modules is very helpful.

In my project, when I added more folder branches within 'src', the local code worked normally (build, fmt, test). But when I executed the same in the CI/CD process, it was as if I couldn't find the imports in that format...

One of the most important and useful videos in Rust learning. Many thanks!

Great video that helps a lot in understanding the concept of modules in Rust

2:31 How to setup VSCode to move automatically text cursor with indentation after pressing enter inside curve brackets? Is it rust-analyzer settings option?

bro, your video is so good. I have know the concept of rust modules. Thanks very much.

I'm a bit confused with re export. In a nutshell does it mean making nested modules functions, structs etc... within your project src public for use at the top level, so anyone can use the function? Like a public interface?

Now that I think of it, is there a VSC extension/configuration for sorting and files in the tree regardless of their type? In order to group the modules with their sub-modules..

Amazing. this was really helpful and concise

Thank you so much for this great content, this is very valuable for me!

Would one recommend this same structure used for libraries in applications as well?

hey, I have installed cargo modules. but when I run the command as like your command. its not showing me similar result to your. it just show mod and struct and enum. what the problem here.

I am getting into programming and learning Rust, I think it's pleasantly elegant!

I bet this will be your most popular video in 5 years time. Graet job.

Perfectly explained, cheers.

cool - now I am able to structure my code into models. Thank you. It would be fine to learn something about testing in Rust.

This is such impressive teaching. Good job.

Okay, convoluted conventions but once understood they make sense and feel clean and powerful enough to maintain code properly factored and under control. Thanks a lot for making this video, it was a day saver!

Very very very useful!!! Next could you please cover conditional compilation, build flags, build.rs, etc.? Thanks a lot

It seems in 2023, you need to run " cargo modules --with-types --with-fns " to get the same output as shown in the video. Went on a detour trying to see why my output differed and that was the result.

clear and concise explanation

Great tutorial 👍 Thank you so much 🙏

great explanation, thanks a lot!

Are there changes in module system with 2021 edition ?

awesome video. this is what I want to know. there are some minor differences then javascript but rust's module system is more effective and sense I think.

Hey , I the cargo modules "generate tree --with-types" is not working. I have tried it by "generate tree --no-types" though its not showing as per the result in the video. Anyone help ?

thank you, very well explained!

thanks man, this is really great video.

Thank you so much for this!

Something I often wonder about, does it speed up compile time if you split up your project in multiple modules?

What's up rusty! everything fine? Came here to complete one more monster video about Rust! Thank you for sharing your knownledges with us. RUST ❤

the "if let Status::Connected" line prevents me from compiling your code, "error[E0658]: `let...else` statements are unstable"

Thanks for this awesome video. Net video that I would request you to cover is `error handling` may be using thiserror and anyhow.

Rust Made Easy with Let's Get Rusty! you made it really easy to understand!

Amazing, thank you very much!

You explications are very good! Thanks for aclarate this topic.

Happy new year bro cheers!! 🍻

I kinda stuck on a problem where I can't make traits use the pub keyword when they are inside a module (so kinda want to use inheritance as to what i have learned in php). Like the animal human example in rust where traits are implemented. But seems like my approach is kinda wrong. I happen to watch the video about builder pattern and it seems pretty much "fixed" my problem. It pretty much avoid you of having creating a struct that only one value is different but almost have the same methods.

How do you use your library within main.rs?

This video is pure gold!

Great stuff, thank you sharing.

Great video. But I am still confused. I want the rust equivalent to the following code from C++. // file: main.c void ace(); int main() { ace(); return 0;} // file: a.c void bar(); void ace() { bar();} // file: b.c void bar() { std::cout

So the only things crate consumers can use from a crate are items in the crate module marked pub? The items marked pub in sub-modules are only pub for the crate module, and need to be explicitly "re-pub'd" from the crate module to also be made available to the crate consumer?

why is it like this tho is there a good reason to have it designed like this? why not be bound by folder path?

This concept is really easy to understand on small projects, but I would still love to see a bigger project example

Nice job. In IntelliJ I find it convenient to just create modules in line and then tell IntelliJ to turn them into separate files.

Hi, When trying to complete this, I'm having serious issues with my system being able to finish compiling the cargo-modules without CPU crashing. (AMD Ryzen 5 3600 6-core) It gets to around 205-210 out of total items to compile and poof, I start getting errors and sometimes restart due to overheat. Any suggestions apart from getting another PC? Is there a means to throttle / cap the CPU usage? Thanks!

Okay but let's say we have another sub directory next to auth_utils, and we want to make use of auth_utils from inside that directory. In Iib.rs we could just use mod auth_utils to make use of its sub modules and functions. How would this work inside a file in a neighboring subdirectory?

I'm still confused about the pub keyword. Wouldn't the Status struct also be public outside of the crate? As you gave it the pub keyword? Or only the stuff on the "lower" module get "exported"?.

If you try this today, you need to install cargo-modules using this command: cargo install cargo-modules --locked. It won't work any other way. It needs to install a million things and some of those things don't play nice together dependency wise. Also, the command to use to generate the try with types is now: cargo modules generate tree --types, The author(s) of cargo-modules have seemingly introduced several feature breaking changes on top of creating the dependancy nightmare that makes dll hell pale in comparison.

Did you make your website with rust?

It was Awesome bro!

It would be awesome if you did some videos on async/await

Is the filename you should use always mod.rs? So if I had three different submodules that contain even more modules I had three directories with their own mod.rs file?

Explained like you were Grandma: thank you granda 😁

Many thanks

best rust channel out there

Hi I'm new to Rust. And I had a struggle with extracting struct S and its 'impl new' to other file. Rust just don't see S::new(). I have no idea why 😅