82 lines
1.9 KiB
Rust
82 lines
1.9 KiB
Rust
// Copyright 2017 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.
|
|
|
|
pub fn g() -> impl Iterator<Item=u8> {
|
|
Some(1u8).into_iter()
|
|
}
|
|
|
|
pub fn h() -> (impl Iterator<Item=u8>) {
|
|
Some(1u8).into_iter()
|
|
}
|
|
|
|
pub fn i() -> impl Iterator<Item=u8> + 'static {
|
|
Some(1u8).into_iter()
|
|
}
|
|
|
|
pub fn j() -> impl Iterator<Item=u8> + Clone {
|
|
Some(1u8).into_iter()
|
|
}
|
|
|
|
pub fn k() -> [impl Clone; 2] {
|
|
[123u32, 456u32]
|
|
}
|
|
|
|
pub fn l() -> (impl Clone, impl Default) {
|
|
(789u32, -123i32)
|
|
}
|
|
|
|
pub fn m() -> &'static impl Clone {
|
|
&1u8
|
|
}
|
|
|
|
pub fn n() -> *const impl Clone {
|
|
&1u8
|
|
}
|
|
|
|
pub fn o() -> &'static [impl Clone] {
|
|
b":)"
|
|
}
|
|
|
|
// issue #44731
|
|
pub fn test_44731_0() -> Box<impl Iterator<Item=u8>> {
|
|
Box::new(g())
|
|
}
|
|
|
|
pub fn test_44731_1() -> Result<Box<impl Clone>, ()> {
|
|
Ok(Box::new(j()))
|
|
}
|
|
|
|
// NOTE these involve Fn sugar, where impl Trait is disallowed for now, see issue #45994
|
|
//
|
|
//pub fn test_44731_2() -> Box<Fn(impl Clone)> {
|
|
// Box::new(|_: u32| {})
|
|
//}
|
|
//
|
|
//pub fn test_44731_3() -> Box<Fn() -> impl Clone> {
|
|
// Box::new(|| 0u32)
|
|
//}
|
|
|
|
pub fn test_44731_4() -> Box<Iterator<Item=impl Clone>> {
|
|
Box::new(g())
|
|
}
|
|
|
|
// @has issue_43869/fn.g.html
|
|
// @has issue_43869/fn.h.html
|
|
// @has issue_43869/fn.i.html
|
|
// @has issue_43869/fn.j.html
|
|
// @has issue_43869/fn.k.html
|
|
// @has issue_43869/fn.l.html
|
|
// @has issue_43869/fn.m.html
|
|
// @has issue_43869/fn.n.html
|
|
// @has issue_43869/fn.o.html
|
|
// @has issue_43869/fn.test_44731_0.html
|
|
// @has issue_43869/fn.test_44731_1.html
|
|
// @has issue_43869/fn.test_44731_4.html
|