diff --git a/src/test/run-pass/impl-trait/universal_multiple_bounds.rs b/src/test/run-pass/impl-trait/universal_multiple_bounds.rs new file mode 100644 index 00000000000..bb332c0c96c --- /dev/null +++ b/src/test/run-pass/impl-trait/universal_multiple_bounds.rs @@ -0,0 +1,23 @@ +// 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 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +#![feature(universal_impl_trait)] + +use std::fmt::Display; + +fn foo(f: impl Display + Clone) -> String { + let g = f.clone(); + format!("{} + {}", f, g) +} + +fn main() { + let sum = foo(format!("22")); + assert_eq!(sum, r"22 + 22"); +} diff --git a/src/test/ui/impl-trait/universal_wrong_bounds.rs b/src/test/ui/impl-trait/universal_wrong_bounds.rs new file mode 100644 index 00000000000..fd35d04b258 --- /dev/null +++ b/src/test/ui/impl-trait/universal_wrong_bounds.rs @@ -0,0 +1,26 @@ +// 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 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +#![feature(universal_impl_trait)] + +use std::fmt::Display; + +fn foo(f: impl Display + Clone) -> String { + wants_debug(f); + wants_display(f); + wants_clone(f); +} + +fn wants_debug(g: impl Debug) { } +fn wants_display(g: impl Debug) { } +fn wants_cone(g: impl Clone) { } + +fn main() { +}