blob: f8889ebcca1e92db0281e4dbc2154efa82d329c1 (
plain)
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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
error: future cannot be sent between threads safely
--> $DIR/issue-68112.rs:34:5
|
LL | require_send(send_fut);
| ^^^^^^^^^^^^^^^^^^^^^^ future created by async block is not `Send`
|
= help: the trait `Sync` is not implemented for `RefCell<i32>`
= note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
note: future is not `Send` as it awaits another future which is not `Send`
--> $DIR/issue-68112.rs:31:17
|
LL | let _ = non_send_fut.await;
| ^^^^^^^^^^^^ await occurs here on type `impl Future<Output = Arc<RefCell<i32>>>`, which is not `Send`
note: required by a bound in `require_send`
--> $DIR/issue-68112.rs:11:25
|
LL | fn require_send(_: impl Send) {}
| ^^^^ required by this bound in `require_send`
error: future cannot be sent between threads safely
--> $DIR/issue-68112.rs:43:5
|
LL | require_send(send_fut);
| ^^^^^^^^^^^^^^^^^^^^^^ future created by async block is not `Send`
|
= help: the trait `Sync` is not implemented for `RefCell<i32>`
= note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
note: future is not `Send` as it awaits another future which is not `Send`
--> $DIR/issue-68112.rs:40:17
|
LL | let _ = make_non_send_future1().await;
| ^^^^^^^^^^^^^^^^^^^^^^^ await occurs here on type `impl Future<Output = Arc<RefCell<i32>>>`, which is not `Send`
note: required by a bound in `require_send`
--> $DIR/issue-68112.rs:11:25
|
LL | fn require_send(_: impl Send) {}
| ^^^^ required by this bound in `require_send`
error[E0277]: `RefCell<i32>` cannot be shared between threads safely
--> $DIR/issue-68112.rs:62:5
|
LL | require_send(send_fut);
| ^^^^^^^^^^^^^^^^^^^^^^ `RefCell<i32>` cannot be shared between threads safely
|
= help: the trait `Sync` is not implemented for `RefCell<i32>`
= note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
= note: required for `Arc<RefCell<i32>>` to implement `Send`
note: required because it's used within this `async` fn body
--> $DIR/issue-68112.rs:47:31
|
LL | async fn ready2<T>(t: T) -> T {
| _______________________________^
LL | | t
LL | | }
| |_^
note: required because it appears within the type `impl Future<Output = Arc<RefCell<i32>>>`
--> $DIR/issue-68112.rs:50:31
|
LL | fn make_non_send_future2() -> impl Future<Output = Arc<RefCell<i32>>> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: required because it's used within this `async` block
--> $DIR/issue-68112.rs:57:20
|
LL | let send_fut = async {
| ^^^^^
note: required by a bound in `require_send`
--> $DIR/issue-68112.rs:11:25
|
LL | fn require_send(_: impl Send) {}
| ^^^^ required by this bound in `require_send`
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0277`.
|
