lattejed/rust_hello_universe

Rust Onboarding

(Not meant for public consumption)

Goals:

To make neophytes comfortable reading source code To give a jumping off point for those that want to learn to write Rust

Non-goals:

To teach you how to write Rust To discuss the minutiae of the language in depth

Rust high level:

Systems language, meant to replace C/C++ Adds memory safety and ‘modern’ features Can be hard to learn because it’s a compiled language with additional compile-time memory constraints Hard but fair, exploding in popularity / ecosystem growth

Features:

• Generics
• Traits
• Enums / ADTs
• Structs
• Async
• Macro system
• Access controls
• Batteries included (std lib, 3rd party)

Non-features:

• Inheritance
• Mutability*
• Overloading
• Dynamic typing*
• Reflection*

Tips:

• If Rust is bad at X, it probably wants you to do X another way
• Favor cargo check (partial compilation without codegen or linking)
• Use cargo fmt and cargo clippy often
• Use unimplemented!() and todo!() to stub code

Resources:

• https://www.rust-lang.org/learn

Three levels of language ref:

• https://doc.rust-lang.org/book/
• https://doc.rust-lang.org/stable/rust-by-example/
• https://doc.rust-lang.org/reference/

Cargo:

• https://doc.rust-lang.org/cargo/index.html

Install:

• https://www.rust-lang.org/tools/install

Cheat sheets:

Memory:

• https://media.githubusercontent.com/media/usagi/rust-memory-container-cs/master/3840x2160/rust-memory-container-cs-3840x2160-dark-back.png

Comprehensive:

• https://cheats.rs/