[rustc.git] / src / test / ui / issues / issue-52240.rs

// issue-52240: Can turn immutable into mut with `ref mut`

enum Foo {
    Bar(i32),
}

fn main() {
    let arr = vec!(Foo::Bar(0));
    if let (Some(Foo::Bar(ref mut val)), _) = (&arr.get(0), 0) {
        //~^ ERROR cannot borrow data in a `&` reference as mutable
        *val = 9001;
    }
    match arr[0] {
        Foo::Bar(ref s) => println!("{}", s)
    }
}
Commit	Line	Data
0bf4aa26 XL	1	// issue-52240: Can turn immutable into mut with `ref mut`
	2
	3	enum Foo {
	4	Bar(i32),
	5	}
	6
	7	fn main() {
	8	let arr = vec!(Foo::Bar(0));
	9	if let (Some(Foo::Bar(ref mut val)), _) = (&arr.get(0), 0) {
48663c56	10	//~^ ERROR cannot borrow data in a `&` reference as mutable
0bf4aa26 XL	11	*val = 9001;
	12	}
	13	match arr[0] {
	14	Foo::Bar(ref s) => println!("{}", s)
	15	}
	16	}