#![warn(rust_2018_idioms, single_use_lifetimes)]
#![allow(unknown_lints, renamed_and_removed_lints)]
#![forbid(unaligned_references, safe_packed_borrows)]
use std::cell::Cell;
#[test]
fn weird_repr_packed() {
thread_local! {
static FIELD_ADDR: Cell<usize> = Cell::new(0);
}
#[repr(packed)]
struct Struct {
field: u8,
}
impl Drop for Struct {
fn drop(&mut self) {
FIELD_ADDR.with(|f| {
f.set(&self.field as *const u8 as usize);
});
}
}
#[allow(clippy::let_and_return)]
let field_addr = {
let x = Struct { field: 27 };
let field_addr = &x.field as *const u8 as usize;
field_addr
};
assert_eq!(field_addr, FIELD_ADDR.with(Cell::get));
}