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#[macro_use]
extern crate rental;
type MyVec<T> = Vec<T>;
rental! {
pub mod rent_vec_slice {
use super::*;
#[rental]
pub struct OwnedSlice {
#[target_ty = "[u8]"]
buffer: MyVec<u8>,
slice: &'buffer [u8],
}
#[rental_mut]
pub struct OwnedMutSlice {
#[target_ty = "[u8]"]
buffer: MyVec<u8>,
slice: &'buffer mut [u8],
}
}
}
#[test]
fn new() {
let vec = vec![1, 2, 3];
let _ = rent_vec_slice::OwnedSlice::new(vec, |slice| slice);
}
#[test]
fn read() {
let vec = vec![1, 2, 3];
let rvec = rent_vec_slice::OwnedSlice::new(vec, |slice| slice);
assert_eq!(rvec.rent(|slice| slice[1]), 2);
assert_eq!(rvec.rent(|slice| slice[1]), rvec.rent(|slice| slice[1]));
}
#[test]
fn write() {
let vec = vec![1, 2, 3];
let mut rvec = rent_vec_slice::OwnedMutSlice::new(vec, |slice| slice);
rvec.rent_mut(|slice| slice[1] = 4);
assert_eq!(rvec.rent(|slice| slice[1]), 4);
assert_eq!(rvec.rent(|slice| slice[1]), rvec.rent(|slice| slice[1]));
}
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