# Auto combining shared prefix "use ...."

1. Suppose we have a code block like:
``````use foobar::A;
use foobar::B;
use foobar::C;
``````

Is there some way of having rust-fmt (or some other tool) to automatically replace it with:

``````use foobar::{A, B, C}
``````

?

1. I find the latter easier to read / more organized; but often end up with the former due to IntelliIJ auto adding imports locally which I then move to lib.rs

You can try creating rustfmt.toml with the following contents

``````merge_imports = true
``````

(This requires using nightly toolchain though, as the option is still unstable)

3 Likes

Works perfectly (even from IntelliJ). Thanks!