src/test/run-pass/issues/issue-30081.rs

   1 // Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // run-pass
  12 // This used to segfault #30081
  13
  14 pub enum Instruction {
  15     Increment(i8),
  16     Loop(Box<Box<()>>),
  17 }
  18
  19 fn main() {
  20     let instrs: Option<(u8, Box<Instruction>)> = None;
  21     instrs.into_iter()
  22         .map(|(_, instr)| instr)
  23         .map(|instr| match *instr { _other => {} })
  24         .last();
  25 }