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