Hands-On Microservices with Rust

Usage

To use clippy, it's enough to start it as the subcommand of cargo:

cargo clippy

This sub-command starts checking the code and will inform you about possible improvements. For example, imagine that you have a struct like this in your code:

struct State {    vec: Box<Vec<u8>>,}

Then, clippy will inform you that Box is unnecessary, since Vec is already placed in a memory heap:

warning: you seem to be trying to use `Box<Vec<T>>`. Consider using just `Vec<T>` --> src/main.rs:4:10  |4 |     vec: Box<Vec<u8>>,  |          ^^^^^^^^^^^^  |  = note: #[warn(clippy::box_vec)] on by default  = help: `Vec<T>` is already on the heap, `Box<Vec<T>>` makes an extra allocation. = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#box_vec ...