| // Copyright 2014 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 which object types are considered sendable. This test |
| // is broken into two parts because some errors occur in distinct |
| // phases in the compiler. See kindck-send-object2.rs as well! |
| |
| fn assert_send<T:Send+'static>() { } |
| trait Dummy { } |
| |
| // careful with object types, who knows what they close over... |
| fn test51<'a>() { |
| assert_send::<&'a Dummy>(); |
| //~^ ERROR `(dyn Dummy + 'a)` cannot be shared between threads safely [E0277] |
| } |
| fn test52<'a>() { |
| assert_send::<&'a (Dummy+Sync)>(); |
| //~^ ERROR does not fulfill the required lifetime |
| } |
| |
| // ...unless they are properly bounded |
| fn test60() { |
| assert_send::<&'static (Dummy+Sync)>(); |
| } |
| fn test61() { |
| assert_send::<Box<Dummy+Send>>(); |
| } |
| |
| // closure and object types can have lifetime bounds which make |
| // them not ok |
| fn test_71<'a>() { |
| assert_send::<Box<Dummy+'a>>(); |
| //~^ ERROR `(dyn Dummy + 'a)` cannot be sent between threads safely |
| } |
| |
| fn main() { } |
