| // 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. |
| |
| // Test that manual impls of the `Fn` traits are not possible without |
| // a feature gate. In fact, the specialized check for these cases |
| // never triggers (yet), because they encounter other problems around |
| // angle bracket vs parentheses notation. |
| |
| #![allow(dead_code)] |
| |
| struct Foo; |
| impl Fn<()> for Foo { |
| extern "rust-call" fn call(self, args: ()) -> () {} |
| //~^ ERROR rust-call ABI is subject to change |
| } |
| struct Foo1; |
| impl FnOnce() for Foo1 { |
| extern "rust-call" fn call_once(self, args: ()) -> () {} |
| //~^ ERROR rust-call ABI is subject to change |
| } |
| struct Bar; |
| impl FnMut<()> for Bar { |
| extern "rust-call" fn call_mut(&self, args: ()) -> () {} |
| //~^ ERROR rust-call ABI is subject to change |
| } |
| struct Baz; |
| impl FnOnce<()> for Baz { |
| extern "rust-call" fn call_once(&self, args: ()) -> () {} |
| //~^ ERROR rust-call ABI is subject to change |
| } |
| |
| fn main() {} |