Beginning Rust: Get Started with Rust 2021 Edition

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

C. MilanesiBeginning Rusthttps://doi.org/10.1007/978-1-4842-7208-4_18

18. Data Encapsulation

Carlo Milanesi¹  

(1)

Bergamo, Italy

 

In this chapter, you will learn:

• Why the dot notation for calling a function is more convenient than the functional notation

• How to use the impl and self keywords to declare functions that can be invoked using the dot notation

• How to encapsulate function declarations in modules, selecting which functions declared in a module should be accessible from other modules

• How to create a hierarchy of modules, and how to access any function in such hierarchy

• How to define type aliases

The Need for Methods

We already saw that there are two possible ...