| // 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. |
| |
| // Unnecessary path disambiguator is ok |
| |
| #![feature(rustc_attrs)] |
| #![allow(unused)] |
| |
| macro_rules! m { |
| ($p: path) => { |
| let _ = $p(0); |
| let _: $p; |
| } |
| } |
| |
| struct Foo<T> { |
| _a: T, |
| } |
| |
| struct S<T>(T); |
| |
| fn f() { |
| let f = Some(Foo { _a: 42 }).map(|a| a as Foo::<i32>); //~ WARN unnecessary path disambiguator |
| let g: Foo::<i32> = Foo { _a: 42 }; //~ WARN unnecessary path disambiguator |
| |
| m!(S::<u8>); // OK, no warning |
| } |
| |
| #[rustc_error] |
| fn main() {} //~ ERROR compilation successful |