mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 13:04:42 +00:00
33 lines
839 B
Rust
33 lines
839 B
Rust
//@ check-pass
|
|
//@ edition:2021
|
|
|
|
use std::array::IntoIter;
|
|
use std::ops::Deref;
|
|
use std::rc::Rc;
|
|
|
|
fn main() {
|
|
let array = [0; 10];
|
|
|
|
// In 2021, the method dispatches to `IntoIterator for [T; N]`.
|
|
let _: IntoIter<i32, 10> = array.into_iter();
|
|
let _: IntoIter<i32, 10> = Box::new(array).into_iter();
|
|
|
|
// The `array_into_iter` lint doesn't cover other wrappers that deref to an array.
|
|
let _: IntoIter<i32, 10> = Rc::new(array).into_iter();
|
|
let _: IntoIter<i32, 10> = Array(array).into_iter();
|
|
|
|
// You can always use the trait method explicitly as an array.
|
|
let _: IntoIter<i32, 10> = IntoIterator::into_iter(array);
|
|
}
|
|
|
|
/// User type that dereferences to an array.
|
|
struct Array([i32; 10]);
|
|
|
|
impl Deref for Array {
|
|
type Target = [i32; 10];
|
|
|
|
fn deref(&self) -> &Self::Target {
|
|
&self.0
|
|
}
|
|
}
|