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//@ check-pass
//@ edition:2018
use std::ops::Deref;
use std::rc::Rc;
use std::slice::Iter;
use std::vec::IntoIter;
fn main() {
let boxed_slice = vec![0; 10].into_boxed_slice();
// Before 2024, the method dispatched to `IntoIterator for Box<[T]>`,
// which we continue to support for compatibility.
let _: Iter<'_, i32> = boxed_slice.into_iter();
//~^ WARNING this method call resolves to `<&Box<[T]> as IntoIterator>::into_iter`
//~| WARNING this changes meaning
let _: Iter<'_, i32> = Box::new(boxed_slice.clone()).into_iter();
//~^ WARNING this method call resolves to `<&Box<[T]> as IntoIterator>::into_iter`
//~| WARNING this changes meaning
let _: Iter<'_, i32> = Rc::new(boxed_slice.clone()).into_iter();
//~^ WARNING this method call resolves to `<&Box<[T]> as IntoIterator>::into_iter`
//~| WARNING this changes meaning
let _: Iter<'_, i32> = Array(boxed_slice.clone()).into_iter();
//~^ WARNING this method call resolves to `<&Box<[T]> as IntoIterator>::into_iter`
//~| WARNING this changes meaning
// But you can always use the trait method explicitly as an boxed_slice.
let _: IntoIter<i32> = IntoIterator::into_iter(boxed_slice);
for _ in (Box::new([1, 2, 3]) as Box<[_]>).into_iter() {}
//~^ WARNING this method call resolves to `<&Box<[T]> as IntoIterator>::into_iter`
//~| WARNING this changes meaning
}
/// User type that dereferences to a boxed slice.
struct Array(Box<[i32]>);
impl Deref for Array {
type Target = Box<[i32]>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
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