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// Tests that a closure which mutates a local variable
// cannot also be supplied a borrowed version of that
// variable's contents. Issue #11192.
struct Foo {
x: isize
}
impl Drop for Foo {
fn drop(&mut self) {
println!("drop {}", self.x);
}
}
fn main() {
let mut ptr: Box<_> = Box::new(Foo { x: 0 });
let mut test = |foo: &Foo| {
ptr = Box::new(Foo { x: ptr.x + 1 });
};
test(&*ptr); //~ ERROR cannot borrow `*ptr`
}
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