src/test/run-fail/mir_codegen_calls_converging_drops_2.rs

   1 // Copyright 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 // error-pattern:complex called
  12 // error-pattern:dropped
  13 // error-pattern:exit
  14
  15 struct Droppable;
  16 impl Drop for Droppable {
  17     fn drop(&mut self) {
  18         eprintln!("dropped");
  19     }
  20 }
  21
  22 // return value of this function is copied into the return slot
  23 fn complex() -> u64 {
  24     eprintln!("complex called");
  25     42
  26 }
  27
  28
  29 fn mir() -> u64 {
  30     let x = Droppable;
  31     return complex();
  32     drop(x);
  33 }
  34
  35 pub fn main() {
  36     assert_eq!(mir(), 42);
  37     panic!("exit");
  38 }