rust/src/test/compile-fail/traits-negative-impls.rs
2016-04-05 22:56:23 +03:00

79 lines
2.1 KiB
Rust

// Copyright 2015 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.
// The dummy functions are used to avoid adding new cfail files.
// What happens is that the compiler attempts to squash duplicates and some
// errors are not reported. This way, we make sure that, for each function, different
// typeck phases are involved and all errors are reported.
#![feature(optin_builtin_traits)]
use std::marker::Send;
struct Outer<T: Send>(T);
struct Outer2<T>(T);
unsafe impl<T: Send> Sync for Outer2<T> {}
fn is_send<T: Send>(_: T) {}
fn is_sync<T: Sync>(_: T) {}
fn dummy() {
struct TestType;
impl !Send for TestType {}
Outer(TestType);
//~^ ERROR `dummy::TestType: std::marker::Send` is not satisfied
//~| ERROR `dummy::TestType: std::marker::Send` is not satisfied
}
fn dummy1b() {
struct TestType;
impl !Send for TestType {}
is_send(TestType);
//~^ ERROR `dummy1b::TestType: std::marker::Send` is not satisfied
}
fn dummy1c() {
struct TestType;
impl !Send for TestType {}
is_send((8, TestType));
//~^ ERROR `dummy1c::TestType: std::marker::Send` is not satisfied
}
fn dummy2() {
struct TestType;
impl !Send for TestType {}
is_send(Box::new(TestType));
//~^ ERROR `dummy2::TestType: std::marker::Send` is not satisfied
}
fn dummy3() {
struct TestType;
impl !Send for TestType {}
is_send(Box::new(Outer2(TestType)));
//~^ ERROR `dummy3::TestType: std::marker::Send` is not satisfied
}
fn main() {
struct TestType;
impl !Send for TestType {}
// This will complain about a missing Send impl because `Sync` is implement *just*
// for T that are `Send`. Look at #20366 and #19950
is_sync(Outer2(TestType));
//~^ ERROR `main::TestType: std::marker::Send` is not satisfied
}