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eholkeholk
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Update issue-68114.rs
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‎src/test/ui/async-await/issue-68112.drop_tracking.stderr‎

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@@ -0,0 +1,79 @@
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error: future cannot be sent between threads safely
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--> $DIR/issue-68112.rs:37:18
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|
4+
LL | require_send(send_fut);
5+
| ^^^^^^^^ future created by async block is not `Send`
6+
|
7+
= help: the trait `Sync` is not implemented for `RefCell<i32>`
8+
note: future is not `Send` as it awaits another future which is not `Send`
9+
--> $DIR/issue-68112.rs:34:17
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|
11+
LL | let _ = non_send_fut.await;
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| ^^^^^^^^^^^^ await occurs here on type `impl Future<Output = Arc<RefCell<i32>>>`, which is not `Send`
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note: required by a bound in `require_send`
14+
--> $DIR/issue-68112.rs:14:25
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|
16+
LL | fn require_send(_: impl Send) {}
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| ^^^^ required by this bound in `require_send`
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error: future cannot be sent between threads safely
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--> $DIR/issue-68112.rs:46:18
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|
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LL | require_send(send_fut);
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| ^^^^^^^^ future created by async block is not `Send`
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|
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= help: the trait `Sync` is not implemented for `RefCell<i32>`
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note: future is not `Send` as it awaits another future which is not `Send`
27+
--> $DIR/issue-68112.rs:43:17
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|
29+
LL | let _ = make_non_send_future1().await;
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| ^^^^^^^^^^^^^^^^^^^^^^^ await occurs here on type `impl Future<Output = Arc<RefCell<i32>>>`, which is not `Send`
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note: required by a bound in `require_send`
32+
--> $DIR/issue-68112.rs:14:25
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|
34+
LL | fn require_send(_: impl Send) {}
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| ^^^^ required by this bound in `require_send`
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37+
error[E0277]: `RefCell<i32>` cannot be shared between threads safely
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--> $DIR/issue-68112.rs:65:18
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|
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LL | require_send(send_fut);
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| ------------ ^^^^^^^^ `RefCell<i32>` cannot be shared between threads safely
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| |
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| required by a bound introduced by this call
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|
45+
= help: the trait `Sync` is not implemented for `RefCell<i32>`
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= note: required for `Arc<RefCell<i32>>` to implement `Send`
47+
note: required because it's used within this `async fn` body
48+
--> $DIR/issue-68112.rs:50:31
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|
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LL | async fn ready2<T>(t: T) -> T {
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| _______________________________^
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LL | | t
53+
LL | | }
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| |_^
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note: required because it appears within the type `impl Future<Output = Arc<RefCell<i32>>>`
56+
--> $DIR/issue-68112.rs:53:31
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|
58+
LL | fn make_non_send_future2() -> impl Future<Output = Arc<RefCell<i32>>> {
59+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
60+
= note: required because it captures the following types: `ResumeTy`, `impl Future<Output = Arc<RefCell<i32>>>`, `()`, `Ready<i32>`
61+
note: required because it's used within this `async` block
62+
--> $DIR/issue-68112.rs:60:26
63+
|
64+
LL | let send_fut = async {
65+
| __________________________^
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LL | | let non_send_fut = make_non_send_future2();
67+
LL | | let _ = non_send_fut.await;
68+
LL | | ready(0).await;
69+
LL | | };
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| |_____^
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note: required by a bound in `require_send`
72+
--> $DIR/issue-68112.rs:14:25
73+
|
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LL | fn require_send(_: impl Send) {}
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| ^^^^ required by this bound in `require_send`
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77+
error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0277`.

‎src/test/ui/async-await/issue-68112.stderr‎ renamed to ‎src/test/ui/async-await/issue-68112.no_drop_tracking.stderr‎

Lines changed: 16 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -1,41 +1,41 @@
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error: future cannot be sent between threads safely
2-
--> $DIR/issue-68112.rs:34:18
2+
--> $DIR/issue-68112.rs:37:18
33
|
44
LL | require_send(send_fut);
55
| ^^^^^^^^ future created by async block is not `Send`
66
|
77
= help: the trait `Sync` is not implemented for `RefCell<i32>`
88
note: future is not `Send` as it awaits another future which is not `Send`
9-
--> $DIR/issue-68112.rs:31:17
9+
--> $DIR/issue-68112.rs:34:17
1010
|
1111
LL | let _ = non_send_fut.await;
1212
| ^^^^^^^^^^^^ await occurs here on type `impl Future<Output = Arc<RefCell<i32>>>`, which is not `Send`
1313
note: required by a bound in `require_send`
14-
--> $DIR/issue-68112.rs:11:25
14+
--> $DIR/issue-68112.rs:14:25
1515
|
1616
LL | fn require_send(_: impl Send) {}
1717
| ^^^^ required by this bound in `require_send`
1818

1919
error: future cannot be sent between threads safely
20-
--> $DIR/issue-68112.rs:43:18
20+
--> $DIR/issue-68112.rs:46:18
2121
|
2222
LL | require_send(send_fut);
2323
| ^^^^^^^^ future created by async block is not `Send`
2424
|
2525
= help: the trait `Sync` is not implemented for `RefCell<i32>`
2626
note: future is not `Send` as it awaits another future which is not `Send`
27-
--> $DIR/issue-68112.rs:40:17
27+
--> $DIR/issue-68112.rs:43:17
2828
|
2929
LL | let _ = make_non_send_future1().await;
3030
| ^^^^^^^^^^^^^^^^^^^^^^^ await occurs here on type `impl Future<Output = Arc<RefCell<i32>>>`, which is not `Send`
3131
note: required by a bound in `require_send`
32-
--> $DIR/issue-68112.rs:11:25
32+
--> $DIR/issue-68112.rs:14:25
3333
|
3434
LL | fn require_send(_: impl Send) {}
3535
| ^^^^ required by this bound in `require_send`
3636

3737
error[E0277]: `RefCell<i32>` cannot be shared between threads safely
38-
--> $DIR/issue-68112.rs:60:18
38+
--> $DIR/issue-68112.rs:65:18
3939
|
4040
LL | require_send(send_fut);
4141
| ------------ ^^^^^^^^ `RefCell<i32>` cannot be shared between threads safely
@@ -45,18 +45,21 @@ LL | require_send(send_fut);
4545
= help: the trait `Sync` is not implemented for `RefCell<i32>`
4646
= note: required for `Arc<RefCell<i32>>` to implement `Send`
4747
note: required because it's used within this `async fn` body
48-
--> $DIR/issue-68112.rs:47:31
48+
--> $DIR/issue-68112.rs:50:31
4949
|
50-
LL | async fn ready2<T>(t: T) -> T { t }
51-
| ^^^^^
50+
LL | async fn ready2<T>(t: T) -> T {
51+
| _______________________________^
52+
LL | | t
53+
LL | | }
54+
| |_^
5255
note: required because it appears within the type `impl Future<Output = Arc<RefCell<i32>>>`
53-
--> $DIR/issue-68112.rs:48:31
56+
--> $DIR/issue-68112.rs:53:31
5457
|
5558
LL | fn make_non_send_future2() -> impl Future<Output = Arc<RefCell<i32>>> {
5659
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
5760
= note: required because it captures the following types: `ResumeTy`, `impl Future<Output = Arc<RefCell<i32>>>`, `()`, `i32`, `Ready<i32>`
5861
note: required because it's used within this `async` block
59-
--> $DIR/issue-68112.rs:55:26
62+
--> $DIR/issue-68112.rs:60:26
6063
|
6164
LL | let send_fut = async {
6265
| __________________________^
@@ -66,7 +69,7 @@ LL | | ready(0).await;
6669
LL | | };
6770
| |_____^
6871
note: required by a bound in `require_send`
69-
--> $DIR/issue-68112.rs:11:25
72+
--> $DIR/issue-68112.rs:14:25
7073
|
7174
LL | fn require_send(_: impl Send) {}
7275
| ^^^^ required by this bound in `require_send`

‎src/test/ui/async-await/issue-68112.rs‎

Lines changed: 8 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,10 +1,13 @@
11
// edition:2018
2+
// revisions: no_drop_tracking drop_tracking
3+
// [drop_tracking] compile-flags: -Zdrop-tracking=yes
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// [no_drop_tracking] compile-flags: -Zdrop-tracking=no
25

36
use std::{
4-
future::Future,
57
cell::RefCell,
6-
sync::Arc,
8+
future::Future,
79
pin::Pin,
10+
sync::Arc,
811
task::{Context, Poll},
912
};
1013

@@ -44,7 +47,9 @@ fn test1_no_let() {
4447
//~^ ERROR future cannot be sent between threads
4548
}
4649

47-
async fn ready2<T>(t: T) -> T { t }
50+
async fn ready2<T>(t: T) -> T {
51+
t
52+
}
4853
fn make_non_send_future2() -> impl Future<Output = Arc<RefCell<i32>>> {
4954
ready2(Arc::new(RefCell::new(0)))
5055
}

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