Rust Programming Cookbook

How it works...

Using traits instead of interfaces and other object-oriented constructs has many implications for the general architecture. In fact, common architectural thinking will likely lead to more complex and verbose code that may perform worse on top of that! Let's examine popular object-oriented principles from the Gang of Four's book, Design Patterns (1994):

• Program to an interface not to an implementation: This principle requires some thinking in Rust. With the 2018 edition, functions can accept an impl MyTrait parameter, where earlier versions had to use Box<MyTrait> or o: T and later where T: MyTrait, all of which have their own issues. It's a trade-off for every project: either less complex abstractions with the concrete type ...