RS.CLIPPY.WHILE_LET_LOOP

`loop { if let { ... } else break }`, which can be written as a `while let` loop

This checker is a Clippy lint created by The Rust Project Contributors. The documentation shown here is a copy of the original documentation for: while_let_loop. Copyright ©2025 The Rust Team. All rights reserved.

What it does

Detects loop + match combinations that are easier written as a while let loop.

Why is this bad?

The while let loop is usually shorter and more readable.

Example

let y = Some(1);
loop {
    let x = match y {
        Some(x) => x,
        None => break,
    };
    // ..
}

Use instead:

let y = Some(1);
while let Some(x) = y {
    // ..
};