[rustc.git] / src / test / run-pass / trait-false-ambiguity-where-clause-builtin-bound.rs

// Copyright 2015 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.

// Test that we do not error out because of a (False) ambiguity
// between the builtin rules for Sized and the where clause. Issue
// #20959.

fn foo<K>(x: Option<K>)
    where Option<K> : Sized
{
    let _y = x;
}

fn main() {
    foo(Some(22));
}
Commit	Line	Data
1a4d82fc	1	// Copyright 2015 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
85aaf69f SL	11	// Test that we do not error out because of a (False) ambiguity
	12	// between the builtin rules for Sized and the where clause. Issue
	13	// #20959.
223e47cc	14
85aaf69f SL	15	fn foo<K>(x: Option<K>)
	16	where Option<K> : Sized
	17	{
	18	let _y = x;
	19	}
223e47cc LB	20
223e47cc LB	21	fn main() {
85aaf69f	22	foo(Some(22));
223e47cc	23	}