src/test/ui/run-pass/issues/issue-34569.rs

   1 // Copyright 2016 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 // compile-flags:-g
  13
  14 // In this test we just want to make sure that the code below does not lead to
  15 // a debuginfo verification assertion during compilation. This was caused by the
  16 // closure in the guard being codegened twice due to how match expressions are
  17 // handled.
  18 //
  19 // See https://github.com/rust-lang/rust/issues/34569 for details.
  20
  21 fn main() {
  22     match 0 {
  23         e if (|| { e == 0 })() => {},
  24         1 => {},
  25         _ => {}
  26     }
  27 }