| // Copyright 2017 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. |
| |
| // ignore-musl |
| // ignore-x86 |
| |
| use std::fmt::Debug; |
| |
| trait Foo { |
| fn foo(&self, _: &impl Debug); |
| } |
| |
| impl Foo for () { |
| fn foo<U: Debug>(&self, _: &U) { } |
| //~^ Error method `foo` has incompatible signature for trait |
| } |
| |
| trait Bar { |
| fn bar<U: Debug>(&self, _: &U); |
| } |
| |
| impl Bar for () { |
| fn bar(&self, _: &impl Debug) { } |
| //~^ Error method `bar` has incompatible signature for trait |
| } |
| |
| // With non-local trait (#49841): |
| |
| use std::hash::{Hash, Hasher}; |
| |
| struct X; |
| |
| impl Hash for X { |
| fn hash(&self, hasher: &mut impl Hasher) {} |
| //~^ Error method `hash` has incompatible signature for trait |
| } |
| |
| fn main() {} |
