| // Copyright 2014-2015 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. |
| |
| // Check that we get an error in a multidisptach scenario where the |
| // set of impls is ambiguous. |
| |
| trait Convert<Target> { |
| fn convert(&self) -> Target; |
| } |
| |
| impl Convert<i8> for i32 { |
| fn convert(&self) -> i8 { |
| *self as i8 |
| } |
| } |
| |
| impl Convert<i16> for i32 { |
| fn convert(&self) -> i16 { |
| *self as i16 |
| } |
| } |
| |
| fn test<T,U>(_: T, _: U) |
| where T : Convert<U> |
| { |
| } |
| |
| fn a() { |
| test(22, std::default::Default::default()); |
| //~^ ERROR type annotations needed [E0282] |
| } |
| |
| fn main() {} |
