33 lines
880 B
Rust
33 lines
880 B
Rust
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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(universal_impl_trait)]
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use std::fmt::Debug;
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trait Foo {
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fn foo(&self, &impl Debug);
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}
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impl Foo for () {
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fn foo<U: Debug>(&self, _: &U) { }
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//~^ Error method `foo` has incompatible signature for trait
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}
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trait Bar {
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fn bar<U: Debug>(&self, &U);
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}
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impl Bar for () {
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fn bar(&self, _: &impl Debug) { }
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//~^ Error method `bar` has incompatible signature for trait
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}
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fn main() {}
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