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rust-clippy/tests/ui/wrong_self_conventions_mut.rs

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745 B
Rust

// edition:2018
#![warn(clippy::wrong_self_convention)]
#![allow(dead_code)]
fn main() {}
mod issue6758 {
pub enum Test<T> {
One(T),
Many(Vec<T>),
}
impl<T> Test<T> {
// If a method starts with `to_` and not ends with `_mut` it should expect `&self`
pub fn to_many(&mut self) -> Option<&mut [T]> {
match self {
Self::Many(data) => Some(data),
_ => None,
}
}
// If a method starts with `to_` and ends with `_mut` it should expect `&mut self`
pub fn to_many_mut(&self) -> Option<&[T]> {
match self {
Self::Many(data) => Some(data),
_ => None,
}
}
}
}