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mirror of https://github.com/google/comprehensive-rust.git synced 2026-04-25 23:11:02 +02:00
Nicole L 350141203a Idiomatic: Fix various broken code examples (#3159)
Many of the code snippets in Idiomatic are broken in various ways that
make them either not run in the slides or not show the error the slide
is intended to illustrate. This PR fixes a number of common issues:

- **Invalid syntax**, e.g. `let` inside a struct definition.
- **Missing `main` fn**. Not all examples need a `main`, but several
code examples had code that only compiles if it's in a function, and so
was failing to compile in the slides. Note that these were not caught in
tests because [there seems to be a difference in behavior between how we
test the code vs how the code works in the
slides](https://github.com/google/comprehensive-rust/issues/3155).
- **Missing `fn` keyword** on method definitions.

In a few places I made more opinionated changes that I'm including here
because splitting them out into a separate PR would just result in merge
conflicts later:

- `hash.md` - Removed the `friends` field. It wasn't necessary for
demonstrating the `Hash` trait, and removing it allows the slide to be
more concise.
- `newtype_pattern.md` - Tweak the exercise to show that you can't pass
an inner type where a newtype wrapper is expected (inverse of what it
was previously demonstrating). I think this is a slightly clearer way to
show what the slide is demonstrating.
- A few minor tweaks to formatting.
- Remove a few extraneous comments.
- Add empty lines to help space things out and make them easier to read.
- Remove `pub` keyword in a few places.
- Remove the `#` prefix on lines that I think should be kept visible in
the code snippet (though note that none of the hidden lines are ever
hidden because the code snippets are editable, see
https://github.com/google/comprehensive-rust/issues/2811).
2026-04-12 11:12:32 +02:00
2025-10-31 19:37:53 +00:00
2023-01-29 14:20:55 +01:00

Comprehensive Rust 🦀

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This repository has the source code for Comprehensive Rust 🦀, a multi-day Rust course developed by the Android team. The course covers all aspects of Rust, from basic syntax to generics and error handling. It also includes deep dives on Android, Chromium, bare-metal, and concurrency.

Read the course at https://google.github.io/comprehensive-rust/.

Course Format and Target Audience

The course is used internally at Google to teach Rust to experienced software engineers, typically with a background in C++ or Java.

The course is taught in a classroom setting, and we hope it will be useful for others who want to teach Rust to their team. The course is less ideal for self-study, since you would miss out on classroom discussions. You would not see the questions and answers, nor the compiler errors we trigger when going through the code samples. We hope to improve the self-study experience via speaker notes and by publishing videos.

Press

Articles and blog posts from around the web which cover Comprehensive Rust:

Setup

The course is built using a few tools:

First, install Rust by following the instructions on https://rustup.rs/. Then clone this repository:

git clone https://github.com/google/comprehensive-rust/
cd comprehensive-rust

Then run the following command to install the correct versions of all tools mentioned above:

cargo xtask install-tools

This uses cargo install to install the tools, so you will find them in your ~/.cargo/bin/ directory afterwards.

Commands

Here are some of the commonly used commands you can run in the project. Run cargo xtask to view all available commands.

Command Description
cargo xtask install-tools Install all the tools the project depends on.
cargo xtask serve Start a web server with the course. You'll find the content on http://localhost:3000. To serve any of the translated versions of the course, add the language flag (--language or -l) followed by xx, where xx is the ISO 639 language code (e.g. cargo xtask serve -l da for the Danish translation).
cargo xtask rust-tests Test the included Rust snippets.
cargo xtask web-tests Run the web driver tests in the tests directory.
cargo xtask build Create a static version of the course in the book/ directory. Note that you have to separately build and zip exercises and add them to book/html. To build any of the translated versions of the course, add the language flag (--language or -l) followed by xx, where xx is the ISO 639 language code (e.g. cargo xtask build -l da for the Danish translation). TRANSLATIONS.md contains further instructions.

Note

On Windows, you need to enable symlinks (git config --global core.symlinks true) and Developer Mode.

Contributing

We welcome contributions. Please see CONTRIBUTING.md for details.

License

This project is licensed under a mix of the Apache License 2.0 and the Creative Commons Attribution 4.0 International License.

Contact

For questions or comments, please contact Martin Geisler or start a discussion on GitHub. We would love to hear from you.

S
Description
This is the Rust course used by the Android team at Google. It provides you the material to quickly teach Rust.
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