mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-03 18:09:42 +00:00
34 lines
756 B
Rust
34 lines
756 B
Rust
//@run-rustfix
|
|
|
|
#![warn(clippy::comparison_to_empty)]
|
|
#![allow(clippy::borrow_deref_ref, clippy::needless_if, clippy::useless_vec)]
|
|
#![feature(let_chains)]
|
|
|
|
fn main() {
|
|
// Disallow comparisons to empty
|
|
let s = String::new();
|
|
let _ = s == "";
|
|
let _ = s != "";
|
|
|
|
let v = vec![0];
|
|
let _ = v == [];
|
|
let _ = v != [];
|
|
if let [] = &*v {}
|
|
let s = [0].as_slice();
|
|
if let [] = s {}
|
|
if let [] = &*s {}
|
|
if let [] = &*s && s == [] {}
|
|
|
|
// Allow comparisons to non-empty
|
|
let s = String::new();
|
|
let _ = s == " ";
|
|
let _ = s != " ";
|
|
|
|
let v = vec![0];
|
|
let _ = v == [0];
|
|
let _ = v != [0];
|
|
if let [0] = &*v {}
|
|
let s = [0].as_slice();
|
|
if let [0] = s {}
|
|
if let [0] = &*s && s == [0] {}
|
|
}
|