mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-23 13:13:34 +00:00
30 lines
722 B
Rust
30 lines
722 B
Rust
// run-rustfix
|
|
#![allow(unused_imports)]
|
|
#![warn(
|
|
clippy::all,
|
|
clippy::style,
|
|
clippy::mem_replace_option_with_none,
|
|
clippy::mem_replace_with_default
|
|
)]
|
|
|
|
use std::mem;
|
|
|
|
fn replace_option_with_none() {
|
|
let mut an_option = Some(1);
|
|
let _ = mem::replace(&mut an_option, None);
|
|
let an_option = &mut Some(1);
|
|
let _ = mem::replace(an_option, None);
|
|
}
|
|
|
|
fn replace_with_default() {
|
|
let mut s = String::from("foo");
|
|
let _ = std::mem::replace(&mut s, String::default());
|
|
let s = &mut String::from("foo");
|
|
let _ = std::mem::replace(s, String::default());
|
|
let _ = std::mem::replace(s, Default::default());
|
|
}
|
|
|
|
fn main() {
|
|
replace_option_with_none();
|
|
replace_with_default();
|
|
}
|