This one is pretty straightforward. If you know about the builder pattern, you will know that it's a very useful pattern to create structures. We can avoid writing the whole new builder structure by using the derive_builder crate. So, let's add it to our Cargo.toml file and check how it works:
#[macro_use]extern crate derive_builder;use std::path::PathBuf;#[derive(Default, Debug, Builder)]#[builder(setter(into), default)]struct MyData { field1: u8, field2: PathBuf, field3: String,}fn main() { let data = MyDataBuilder::default() .field2("path/to/file.png") .field3("Some string") .build().unwrap(); println!("{:?}", data);}
As you can see, we just added #[derive(Build)] to the structure and added ...
