1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // Regression test for #48132. This was failing due to problems around
12 // the projection caching and dropck type enumeration.
19 pub struct Container<T: Iterator> {
20 value: Option<T::Item>,
23 impl<T: Iterator> Container<T> {
24 pub fn new(iter: T) -> Self {
29 pub struct Wrapper<'a> {
33 impl<'a, 'de> Wrapper<'a> {
34 pub fn new(content: &'a Content) -> Self {
43 fn crash_it(content: Content) {
44 let items = vec![content];
45 let map = items.iter().map(|ref o| Wrapper::new(o));
47 let mut map_visitor = Container::new(map);