Rust-Tutorial

What is Rust?

• Rust is a statically compiled language in a similar role as C++

  • rustc uses LLVM as its backend.

• Rust supports many platforms and architectures:

  • x86, ARM, WebAssembly, …
  • Linux, Mac, Windows, …

• Rust is used for a wide range of devices:

  • firmware and boot loaders,
  • smart displays,
  • mobile phones,
  • desktops,
  • servers.

Why Rust?

• Compile time memory safety
• Lack of undefined runtime behavior
• Modern language features

C/C++ vs Rust

• Eliminates runtime error via the borrow checker
• Don't have memory unsafety issue
• Pattern matching, dependency management 기능

OOP vs Rust

• Memory safety
• High level lang feeling + low level lang perfomance

Rust 구성 요소

• rustc : the Rust compiler which turns .rs files into binaries and other intermediate formats.
• Cargo : the Rust dependency manager and build tool
  • https://crates.io/ 에서 dependency 다운로드
  • 프로젝트 빌드시 rustc 에 전달
• Rustfmt : Rust formatter
• Rust Language Server : 코드 자동완성Code completion , inline-error 메시지를 위한 IDE 결합

Install

• rustup : the Rust toolchain installer and updater
  • rust 버전관리 가능
  • rust 새로운 release 시, rustc, cargo 업데이트에 사용

MacOS / Linux

• 스크립트 다운로드

$ curl https://sh.rustup.rs -sSf | sh

환경 변수 추가

$ export PATH="$HOME/.cargo/bin:$PATH"

설치 확인

$ rustc --version

Cargo Run

$ cargo new <folder name>

# Build binary
$ cargo run 

# check for error
$ cargo check

# build without runnung
$ cargo build