32 lines
1.0 KiB
Rust
32 lines
1.0 KiB
Rust
|
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
|
||
|
|
// file at the top-level directory of this distribution and at
|
||
|
|
// http://rust-lang.org/COPYRIGHT.
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||
|
|
// option. This file may not be copied, modified, or distributed
|
||
|
|
// except according to those terms.
|
||
|
|
|
||
|
|
// Regression test for #36053. ICE was caused due to obligations being
|
||
|
|
// added to a special, dedicated fulfillment cx during a
|
||
|
|
// probe. Problem seems to be related to the particular definition of
|
||
|
|
// `FusedIterator` in std but I was not able to isolate that into an
|
||
|
|
// external crate.
|
||
|
|
|
||
|
|
use std::iter::FusedIterator;
|
||
|
|
|
||
|
|
struct Thing<'a>(&'a str);
|
||
|
|
impl<'a> Iterator for Thing<'a> {
|
||
|
|
type Item = &'a str;
|
||
|
|
fn next(&mut self) -> Option<&'a str> {
|
||
|
|
None
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
impl<'a> FusedIterator for Thing<'a> {}
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
Thing("test").fuse().filter(|_| true).count();
|
||
|
|
}
|