blob: 1bd6d76360768f8602e46615c73e2eff418776c8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
// 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() { }
|
