OBRM, also known as RAII means ‘Resoure Acquisition is Initialization’. Roughly speaking, to acquire a resource, you need to create an object that manages it.

Constructors

Unlike C++, Rust doesn’t have a built-in kinds of constructor. Rust requires explicit calls to create/destroy the object.

Move constructor Copy and Clone trait provides C++’s copy-oriented semantics. Copy types are implicitly cloned whenever they’re moved.

Destructors

fn drop(&mut self)

After drop is run, Rust will recursively drop all of the fields.