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7453a54e | 1 | // Copyright 2016 The Rust Project Developers. See the COPYRIGHT |
223e47cc LB |
2 | // file at the top-level directory of this distribution and at |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
3b2f2976 XL |
11 | // Unnecessary path disambiguator is ok |
12 | ||
13 | #![feature(rustc_attrs)] | |
14 | #![allow(unused)] | |
15 | ||
16 | macro_rules! m { | |
17 | ($p: path) => { | |
18 | let _ = $p(0); | |
19 | let _: $p; | |
20 | } | |
21 | } | |
22 | ||
c30ab7b3 SL |
23 | struct Foo<T> { |
24 | _a: T, | |
223e47cc LB |
25 | } |
26 | ||
3b2f2976 XL |
27 | struct S<T>(T); |
28 | ||
29 | fn f() { | |
30 | let f = Some(Foo { _a: 42 }).map(|a| a as Foo::<i32>); //~ WARN unnecessary path disambiguator | |
31 | let g: Foo::<i32> = Foo { _a: 42 }; //~ WARN unnecessary path disambiguator | |
c30ab7b3 | 32 | |
3b2f2976 | 33 | m!(S::<u8>); // OK, no warning |
223e47cc | 34 | } |
3b2f2976 XL |
35 | |
36 | #[rustc_error] | |
37 | fn main() {} //~ ERROR compilation successful |