44 lines
1.3 KiB
Rust
44 lines
1.3 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Test which object types are considered sendable. This test
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// is broken into two parts because some errors occur in distinct
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// phases in the compiler. See kindck-send-object2.rs as well!
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fn assert_send<T:Send>() { }
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trait Dummy { }
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// careful with object types, who knows what they close over...
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fn test51<'a>() {
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assert_send::<&'a Dummy>();
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//~^ ERROR the trait `core::marker::Send` is not implemented
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}
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fn test52<'a>() {
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assert_send::<&'a (Dummy+Send)>();
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//~^ ERROR declared lifetime bound not satisfied
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}
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// ...unless they are properly bounded
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fn test60() {
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assert_send::<&'static (Dummy+Send)>();
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}
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fn test61() {
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assert_send::<Box<Dummy+Send>>();
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}
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// closure and object types can have lifetime bounds which make
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// them not ok
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fn test_71<'a>() {
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assert_send::<Box<Dummy+'a>>();
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//~^ ERROR the trait `core::marker::Send` is not implemented
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}
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fn main() { }
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