RS.CLIPPY.EXHAUSTIVE_STRUCTS

Detects exported structs that have not been marked #[non_exhaustive]

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

What it does

Warns on any exported structs that are not tagged #[non_exhaustive]

Why restrict this?

Making a struct exhaustive is a stability commitment: adding a field is a breaking change. A project may wish to ensure that there are no exhaustive structs or that every exhaustive struct is explicitly #[allow]ed.

Example

struct Foo {
    bar: u8,
    baz: String,
}

Use instead:

#[non_exhaustive]
struct Foo {
    bar: u8,
    baz: String,
}