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// Issue 27282: Example 1: This sidesteps the AST checks disallowing
// mutable borrows in match guards by hiding the mutable borrow in a
// guard behind a move (of the ref mut pattern id) within a closure.
fn main() {
match Some(&4) {
None => {},
ref mut foo
if { (|| { let bar = foo; bar.take() })(); false } => {},
//~^ ERROR cannot move out of `foo` in pattern guard [E0507]
Some(s) => std::process::exit(*s),
}
}
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