RS.CLIPPY.UNUSED_SELF

Methods that contain a `self` argument but don't use it

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

What it does

Checks methods that contain a self argument but don't use it

Why is this bad?

It may be clearer to define the method as an associated function instead of an instance method if it doesn't require self.

Example

struct A;
impl A {
    fn method(&self) {}
}

Could be written:

struct A;
impl A {
    fn method() {}
}

Configuration

  • avoid-breaking-exported-api: Suppress lints whenever the suggested change would cause breakage for other crates.

    (default: true)