about summary refs log tree commit diff
path: root/src/test/ui/compile-fail-migration/syntax-trait-polarity.rs
diff options
context:
space:
mode:
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.rs37
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() {}