everybody_loops

A Replacement for the -Z unpretty=everybody_loops pass to rustc.

Usage

Take a file with a lot of functions, you want to get rid of them.

```rust fn main() { let x = 1; let y = 2; let z = x + y; } struct Foo;

impl std::fmt::Debug for Foo { fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { write!(f, "Foo") } }

impl Foo { fn boo(&self) { println!("boo"); } }

const f: () = { fn noop() { let x = 8; } } ```

Just run

everybody_loops file.rs

And now you have a with much simpler code.

rust fn main() { loop {} } struct Foo; impl std::fmt::Debug for Foo { fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { loop {} } } impl Foo { fn boo(&self) { loop {} } } const f: () = { fn noop() { loop {} } };

Installation

cargo install --frozen everybody_loops

Limitations

This will not work for functions with impl Trait in the return type, as the compiller needs to ascribe a concreat type.

Prior Art

• This used to be a compiller feature, but it was removed in #93913
• This post by Felix S Klock II first inroduced me to this technique.
• The code is a thin wrapper over syn and prettyplease, both by dtolnay, who diserves far more credit than me for making this happen.

License

<sup>Licensed under either of Apache License, Version 2.0 or MIT license at your option.</sup>

<sub>Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.</sub>