rust/tests/ui/mem_forget.rs

35 lines
959 B
Rust

use std::rc::Rc;
use std::sync::Arc;
use std::mem as memstuff;
use std::mem::forget as forgetSomething;
#[warn(clippy::mem_forget)]
#[allow(forgetting_copy_types)]
fn main() {
let five: i32 = 5;
forgetSomething(five);
let six: Arc<i32> = Arc::new(6);
memstuff::forget(six);
//~^ ERROR: usage of `mem::forget` on `Drop` type
//~| NOTE: argument has type `std::sync::Arc<i32>`
let seven: Rc<i32> = Rc::new(7);
std::mem::forget(seven);
//~^ ERROR: usage of `mem::forget` on `Drop` type
//~| NOTE: argument has type `std::rc::Rc<i32>`
let eight: Vec<i32> = vec![8];
forgetSomething(eight);
//~^ ERROR: usage of `mem::forget` on `Drop` type
//~| NOTE: argument has type `std::vec::Vec<i32>`
let string = String::new();
std::mem::forget(string);
//~^ ERROR: usage of `mem::forget` on type with `Drop` fields
//~| NOTE: argument has type `std::string::String`
std::mem::forget(7);
}