rust/src/test/ui/feature-gate-conservative_impl_trait.rs
est31 6dba3e68e6 Migrate even more feature gate tests to ui
We also rename some of the files to conform to the
feature-gate-<feat_name>.rs pattern that is most common.
2017-12-07 10:14:41 +01:00

15 lines
572 B
Rust

// Copyright 2016 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.
fn foo() -> impl Fn() { || {} }
//~^ ERROR `impl Trait` in return position is experimental
fn main() {}