mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-27 13:33:26 +00:00
38d4ac7cea
Discussion previously happened in https://github.com/rust-lang/rust/pull/43498
66 lines
1.1 KiB
Rust
66 lines
1.1 KiB
Rust
#![warn(clippy::drop_copy, clippy::forget_copy)]
|
|
#![allow(clippy::toplevel_ref_arg, clippy::drop_ref, clippy::forget_ref, unused_mut)]
|
|
|
|
use std::mem::{drop, forget};
|
|
use std::vec::Vec;
|
|
|
|
#[derive(Copy, Clone)]
|
|
struct SomeStruct {}
|
|
|
|
struct AnotherStruct {
|
|
x: u8,
|
|
y: u8,
|
|
z: Vec<u8>,
|
|
}
|
|
|
|
impl Clone for AnotherStruct {
|
|
fn clone(&self) -> AnotherStruct {
|
|
AnotherStruct {
|
|
x: self.x,
|
|
y: self.y,
|
|
z: self.z.clone(),
|
|
}
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let s1 = SomeStruct {};
|
|
let s2 = s1;
|
|
let s3 = &s1;
|
|
let mut s4 = s1;
|
|
let ref s5 = s1;
|
|
|
|
drop(s1);
|
|
drop(s2);
|
|
drop(s3);
|
|
drop(s4);
|
|
drop(s5);
|
|
|
|
forget(s1);
|
|
forget(s2);
|
|
forget(s3);
|
|
forget(s4);
|
|
forget(s5);
|
|
|
|
let a1 = AnotherStruct {
|
|
x: 255,
|
|
y: 0,
|
|
z: vec![1, 2, 3],
|
|
};
|
|
let a2 = &a1;
|
|
let mut a3 = a1.clone();
|
|
let ref a4 = a1;
|
|
let a5 = a1.clone();
|
|
|
|
drop(a2);
|
|
drop(a3);
|
|
drop(a4);
|
|
drop(a5);
|
|
|
|
forget(a2);
|
|
let a3 = &a1;
|
|
forget(a3);
|
|
forget(a4);
|
|
let a5 = a1.clone();
|
|
forget(a5);
|
|
}
|