Learning Rust

A simple crate example

In this example, we will create a trait that will contain the signature for two functions: calc_perimeter and calc_area. To start with, we construct a struct. In this case, we will have two structs:

struct Perimeter {  side_one: i32,  side_two: i32, }struct Oval {  radius: f32,  height: f32,}

We need to create a trait for each. The general format for a trait looks like this:

trait TraitName {   fn function_name(&self) -> return_type; }

In our case, we would have the following:

trait CalcPerimeter{  fn calc_perimeter(&self) -> i32; }trait CalcArea {  fn calc_area(&self) -> f32; }

We now need to create an implementation for both of these traits. The impl, though, will not look quite the same.

Before, we had the following: