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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 | ||
19 | struct Baz { q: Option<Foo> } | |
20 | ||
21 | struct 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 | |
29 | impl Foo { fn bar(&self) {} } | |
30 | ||
31 | fn main() {} |