Beginning Rust: From Novice to Professional

© Carlo Milanesi 2018

Carlo MilanesiBeginning Rusthttps://doi.org/10.1007/978-1-4842-3468-6_21

21. Drops, Moves, and Copies

Carlo Milanesi¹ 

(1)

Bergamo, Italy

 

In this chapter, you will learn:

• Why deterministic and implicit destruction of objects is a big plus of Rust

• The concept of ownership of objects

• Why custom destructors may be useful, and how to create them

• The three kinds of assignment semantics: share semantics, copy semantics, and move semantics

• Why implicit share semantics is bad for software correctness

• Why move semantics may have better performance than copy semantics

• Why some types need copy semantics and others do not, and how to specify that

• Why some types need to be non-cloneable, and how to specify that

Deterministic Destruction

So far, ...