1 // Copyright 2018 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.
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.
11 // Issue 27282: Example 1: This sidesteps the AST checks disallowing
12 // mutable borrows in match guards by hiding the mutable borrow in a
13 // guard behind a move (of the ref mut pattern id) within a closure.
15 // This example is not rejected by AST borrowck (and then reliably
16 // segfaults when executed).
24 if { (|| { let bar = foo; bar.take() })(); false } => {},
25 //~^ ERROR cannot move out of borrowed content [E0507]
26 Some(s) => std::process::exit(*s),