Mastering Rust

Table of Contents

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Parameter	Value	Note
Official Website	Click Here

Rust Language

Rust is Compiled Language

Rust is Safe Language

Type Checking

Every time we create a variable we must first determine the data type to be used. This protects developers from a bunch of common bugs and security flaws in the code we write.

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Static Typed

Rust is a statically typed language, mean a variable created with a certain data type cannot be used on other data types. Look at the code below:

let data:i32 = 15;
data = "Hello World!";

The advantage of static typing is that the compilation results produce code that can be executed quickly, because the compiler knows what data types are used so that it is able to produce optimized machine code.

Optimization provides added value such as speed and lighter memory usage in the application software produced.

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Rust Binaries

Rust Version

For check installed rust on your machine, execute this command :

$ rustc --version

Rust Update

For update rust to newer version, execute this command :

$ rustup update

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Cargo

Create Project

To initiate new project execute this command :

$ cargo new hello

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Execute Project

Go to hello package and then execute entry point in the project :

$ cargo run

Output :

   Compiling hello v0.1.0 (D:\Gitlibertarian\Mastering-Rust\hello)
    Finished dev [unoptimized + debuginfo] target(s) in 1.58s
     Running `target\debug\hello.exe`
Hello, world!

To execute in quiet mode add this flags :

$ cargo run -q

Output :

Hello, world!

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Test Project

To test the project create tests directory and create file test.rs :

#[test]
fn works() {
    assert!(true);
}

Start testing by execute this command :

$ cargo test

Output :

     Running tests\test.rs (target\debug\deps\test-baf0d4e290429966.exe)

running 1 test
test works ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

Introduction to Rust

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