src/test/compile-fail/borrowck-fn-in-const-b.rs

   1 // Copyright 2014 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 // Check that we check fns appearing in constant declarations.
  12 // Issue #22382.
  13
  14 // How about mutating an immutable vector?
  15 const MUTATE: fn(&Vec<String>) = {
  16     fn broken(x: &Vec<String>) {
  17         x.push(format!("this is broken"));
  18         //~^ ERROR cannot borrow
  19     }
  20     broken
  21 };
  22
  23 fn main() {
  24 }