| // 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. |
| |
| // Check that unsafe traits require unsafe impls and that inherent |
| // impls cannot be unsafe. |
| |
| trait SafeTrait { |
| fn foo(&self) { } |
| } |
| |
| unsafe trait UnsafeTrait { |
| fn foo(&self) { } |
| } |
| |
| unsafe impl UnsafeTrait for u8 { } // OK |
| |
| impl UnsafeTrait for u16 { } //~ ERROR requires an `unsafe impl` declaration |
| |
| unsafe impl SafeTrait for u32 { } //~ ERROR the trait `SafeTrait` is not unsafe |
| |
| fn main() { } |
