RS.CLIPPY.PARTIAL_PUB_FIELDS

Partial fields of a struct are public

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

What it does

Checks whether some but not all fields of a struct are public.

Either make all fields of a type public, or make none of them public

Why restrict this?

Most types should either be:

Abstract data types: complex objects with opaque implementation which guard interior invariants and expose intentionally limited API to the outside world.
Data: relatively simple objects which group a bunch of related attributes together, but have no invariants.

Example

pub struct Color {
    pub r: u8,
    pub g: u8,
    b: u8,
}

Use instead:

pub struct Color {
    pub r: u8,
    pub g: u8,
    pub b: u8,
}