| // Copyright 2013 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. |
| |
| #![allow(unused_variables)] |
| #![deny(dead_code)] |
| #![feature(main, start)] |
| |
| struct Foo; |
| |
| trait Bar { |
| fn bar1(&self); |
| fn bar2(&self) { |
| self.bar1(); |
| } |
| } |
| |
| impl Bar for Foo { |
| fn bar1(&self) { |
| live_fn(); |
| } |
| } |
| |
| fn live_fn() {} |
| |
| fn dead_fn() {} //~ ERROR: function is never used |
| |
| #[main] |
| fn dead_fn2() {} //~ ERROR: function is never used |
| |
| fn used_fn() {} |
| |
| #[start] |
| fn start(_: isize, _: *const *const u8) -> isize { |
| used_fn(); |
| let foo = Foo; |
| foo.bar2(); |
| 0 |
| } |
| |
| // this is not main |
| fn main() { //~ ERROR: function is never used |
| dead_fn(); |
| dead_fn2(); |
| } |