| // Copyright 2012 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. |
| |
| #![feature(box_syntax)] |
| |
| use std::collections::HashMap; |
| |
| trait Map<K, V> |
| { |
| fn get(&self, k: K) -> V { panic!() } |
| } |
| |
| impl<K, V> Map<K, V> for HashMap<K, V> {} |
| |
| // Test that trait types printed in error msgs include the type arguments. |
| |
| fn main() { |
| let x: Box<HashMap<isize, isize>> = box HashMap::new(); |
| let x: Box<Map<isize, isize>> = x; |
| let y: Box<Map<usize, isize>> = Box::new(x); |
| //~^ ERROR `std::boxed::Box<dyn Map<isize, isize>>: Map<usize, isize>` is not satisfied |
| } |