| // 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. |
| |
| // Test that we pick which version of `foo` to run based on the |
| // type that is (ultimately) inferred for `x`. |
| |
| |
| trait foo { |
| fn foo(&self) -> i32; |
| } |
| |
| impl foo for Vec<u32> { |
| fn foo(&self) -> i32 {1} |
| } |
| |
| impl foo for Vec<i32> { |
| fn foo(&self) -> i32 {2} |
| } |
| |
| fn call_foo_uint() -> i32 { |
| let mut x = Vec::new(); |
| let y = x.foo(); |
| x.push(0u32); |
| y |
| } |
| |
| fn call_foo_int() -> i32 { |
| let mut x = Vec::new(); |
| let y = x.foo(); |
| x.push(0i32); |
| y |
| } |
| |
| fn main() { |
| assert_eq!(call_foo_uint(), 1); |
| assert_eq!(call_foo_int(), 2); |
| } |