]> git.proxmox.com Git - rustc.git/blame - src/test/compile-fail/sized-cycle-note.rs
Imported Upstream version 1.9.0+dfsg1
[rustc.git] / src / test / compile-fail / sized-cycle-note.rs
CommitLineData
7453a54e
SL
1// Copyright 2014 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.
4//
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.
10
11// Test the error message resulting from a cycle in solving `Foo:
12// Sized`. The specifics of the message will of course but the main
13// thing we want to preserve is that:
14//
15// 1. the message should appear attached to one of the structs
16// defined in this file;
17// 2. it should elaborate the steps that led to the cycle.
18
19struct Baz { q: Option<Foo> }
20
21struct Foo { q: Option<Baz> }
22//~^ ERROR recursive type `Foo` has infinite size
54a0048b
SL
23//~| NOTE type `Foo` is embedded within `std::option::Option<Foo>`...
24//~| NOTE ...which in turn is embedded within `std::option::Option<Foo>`...
25//~| NOTE ...which in turn is embedded within `Baz`...
26//~| NOTE ...which in turn is embedded within `std::option::Option<Baz>`...
27//~| NOTE ...which in turn is embedded within `Foo`, completing the cycle.
7453a54e
SL
28
29impl Foo { fn bar(&self) {} }
30
31fn main() {}