diff options
Diffstat (limited to 'src/test/ui/compile-fail-migration/syntax-trait-polarity.rs')
| -rw-r--r-- | src/test/ui/compile-fail-migration/syntax-trait-polarity.rs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/test/ui/compile-fail-migration/syntax-trait-polarity.rs b/src/test/ui/compile-fail-migration/syntax-trait-polarity.rs new file mode 100644 index 00000000000..1a5d058cb9a --- /dev/null +++ b/src/test/ui/compile-fail-migration/syntax-trait-polarity.rs @@ -0,0 +1,37 @@ +// 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. + +#![feature(optin_builtin_traits)] + +use std::marker::Send; + +struct TestType; + +impl !TestType {} +//~^ ERROR inherent impls cannot be negative + +trait TestTrait {} + +unsafe impl !Send for TestType {} +//~^ ERROR negative impls cannot be unsafe +impl !TestTrait for TestType {} +//~^ ERROR negative impls are only allowed for auto traits + +struct TestType2<T>(T); + +impl<T> !TestType2<T> {} +//~^ ERROR inherent impls cannot be negative + +unsafe impl<T> !Send for TestType2<T> {} +//~^ ERROR negative impls cannot be unsafe +impl<T> !TestTrait for TestType2<T> {} +//~^ ERROR negative impls are only allowed for auto traits + +fn main() {} |
