| // Copyright 2014 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 coercions are propagated through match and if expressions. |
| |
| // pretty-expanded FIXME #23616 |
| |
| #![allow(unknown_features)] |
| #![feature(box_syntax)] |
| |
| pub fn main() { |
| let _: Box<[isize]> = |
| if true { let b: Box<_> = box [1, 2, 3]; b } else { let b: Box<_> = box [1]; b }; |
| |
| let _: Box<[isize]> = match true { |
| true => { let b: Box<_> = box [1, 2, 3]; b } |
| false => { let b: Box<_> = box [1]; b } |
| }; |
| |
| // Check we don't get over-keen at propagating coercions in the case of casts. |
| let x = if true { 42 } else { 42u8 } as u16; |
| let x = match true { true => 42, false => 42u8 } as u16; |
| } |
