rust/src/test/run-pass/traits-issue-23003.rs
Brian Anderson 8c93a79e38 rustdoc: Replace no-pretty-expanded with pretty-expanded
Now that features must be declared expanded source often does not compile.
This adds 'pretty-expanded' to a bunch of test cases that still work.
2015-03-23 14:40:26 -07:00

42 lines
1.1 KiB
Rust

// Copyright 2015 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.
// Test stack overflow triggered by evaluating the implications. To be
// WF, the type `Receipt<Complete>` would require that `<Complete as
// Async>::Cancel` be WF. This normalizes to `Receipt<Complete>`
// again, leading to an infinite cycle. Issue #23003.
// pretty-expanded FIXME #23616
#![allow(dead_code)]
#![allow(unused_variables)]
use std::marker::PhantomData;
trait Async {
type Cancel;
}
struct Receipt<A:Async> {
marker: PhantomData<A>,
}
struct Complete {
core: Option<()>,
}
impl Async for Complete {
type Cancel = Receipt<Complete>;
}
fn foo(r: Receipt<Complete>) { }
fn main() { }