tests/ui/coroutine/partial-drop.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

//@ check-pass
#![feature(negative_impls, coroutines, stmt_expr_attributes)]

struct Foo;
impl !Send for Foo {}

struct Bar {
    foo: Foo,
    x: i32,
}

fn main() {
    assert_send(
        #[coroutine]
        || {
            let guard = Bar { foo: Foo, x: 42 };
            drop(guard.foo);
            yield;
        },
    );

    assert_send(
        #[coroutine]
        || {
            let mut guard = Bar { foo: Foo, x: 42 };
            drop(guard);
            guard = Bar { foo: Foo, x: 23 };
            yield;
        },
    );

    assert_send(
        #[coroutine]
        || {
            let guard = Bar { foo: Foo, x: 42 };
            let Bar { foo, x } = guard;
            drop(foo);
            yield;
        },
    );
}

fn assert_send<T: Send>(_: T) {}