| // Copyright 2012 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 of the builtin types are considered sendable. The tests |
| // in this file all test region bound and lifetime violations that are |
| // detected during type check. |
| |
| trait Dummy : 'static { } |
| fn assert_send<T:'static>() { } |
| |
| // lifetime pointers with 'static lifetime are ok |
| |
| fn static_lifime_ok<'a,T,U:Send>(_: &'a isize) { |
| assert_send::<&'static isize>(); |
| assert_send::<&'static str>(); |
| assert_send::<&'static [isize]>(); |
| |
| // whether or not they are mutable |
| assert_send::<&'static mut isize>(); |
| } |
| |
| // otherwise lifetime pointers are not ok |
| |
| fn param_not_ok<'a>(x: &'a isize) { |
| assert_send::<&'a isize>(); //~ ERROR does not fulfill the required lifetime |
| } |
| |
| fn param_not_ok1<'a>(_: &'a isize) { |
| assert_send::<&'a str>(); //~ ERROR does not fulfill the required lifetime |
| } |
| |
| fn param_not_ok2<'a>(_: &'a isize) { |
| assert_send::<&'a [isize]>(); //~ ERROR does not fulfill the required lifetime |
| } |
| |
| // boxes are ok |
| |
| fn box_ok() { |
| assert_send::<Box<isize>>(); |
| assert_send::<String>(); |
| assert_send::<Vec<isize>>(); |
| } |
| |
| // but not if they own a bad thing |
| |
| fn box_with_region_not_ok<'a>() { |
| assert_send::<Box<&'a isize>>(); //~ ERROR does not fulfill the required lifetime |
| } |
| |
| // raw pointers are ok unless they point at unsendable things |
| |
| fn unsafe_ok1<'a>(_: &'a isize) { |
| assert_send::<*const isize>(); |
| assert_send::<*mut isize>(); |
| } |
| |
| fn unsafe_ok2<'a>(_: &'a isize) { |
| assert_send::<*const &'a isize>(); //~ ERROR does not fulfill the required lifetime |
| } |
| |
| fn unsafe_ok3<'a>(_: &'a isize) { |
| assert_send::<*mut &'a isize>(); //~ ERROR does not fulfill the required lifetime |
| } |
| |
| fn main() { |
| } |