73 lines
1.4 KiB
Rust
73 lines
1.4 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
|
|
|
|
|
|
|
|
#![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);
|
|
}
|