| // Copyright 2012-2015 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. |
| |
| // This used to segfault #30081 |
| |
| pub enum Instruction { |
| Increment(i8), |
| Loop(Box<Box<()>>), |
| } |
| |
| fn main() { |
| let instrs: Option<(u8, Box<Instruction>)> = None; |
| instrs.into_iter() |
| .map(|(_, instr)| instr) |
| .map(|instr| match *instr { _other => {} }) |
| .last(); |
| } |
