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| author | Esteban Kuber <esteban@kuber.com.ar> | 2021-09-14 15:44:08 +0000 |
|---|---|---|
| committer | Esteban Küber <esteban@kuber.com.ar> | 2023-08-09 14:04:10 +0000 |
| commit | 9de1a472b68ed85f396b2e2cc79c3ef17584d6e1 (patch) | |
| tree | 0e93df76a07e347476929f16ca8da0084d6c18cc /tests/ui/impl-trait | |
| parent | 19a647d6d8f6ead984d7b431c4a8376e02c543e6 (diff) | |
| download | rust-9de1a472b68ed85f396b2e2cc79c3ef17584d6e1.tar.gz rust-9de1a472b68ed85f396b2e2cc79c3ef17584d6e1.zip | |
Suggest using `Arc` on `!Send`/`!Sync` types
Diffstat (limited to 'tests/ui/impl-trait')
| -rw-r--r-- | tests/ui/impl-trait/auto-trait-leak2.rs | 2 | ||||
| -rw-r--r-- | tests/ui/impl-trait/auto-trait-leak2.stderr | 8 | ||||
| -rw-r--r-- | tests/ui/impl-trait/in-trait/check-wf-on-non-defaulted-rpitit.stderr | 1 |
3 files changed, 8 insertions, 3 deletions
diff --git a/tests/ui/impl-trait/auto-trait-leak2.rs b/tests/ui/impl-trait/auto-trait-leak2.rs index 09450089ada..bbad0df1f66 100644 --- a/tests/ui/impl-trait/auto-trait-leak2.rs +++ b/tests/ui/impl-trait/auto-trait-leak2.rs @@ -21,11 +21,13 @@ fn main() { //~^ ERROR `Rc<Cell<i32>>` cannot be sent between threads safely //~| NOTE `Rc<Cell<i32>>` cannot be sent between threads safely //~| NOTE required by a bound + //~| NOTE use `std::sync::Arc` instead send(after()); //~^ ERROR `Rc<Cell<i32>>` cannot be sent between threads safely //~| NOTE `Rc<Cell<i32>>` cannot be sent between threads safely //~| NOTE required by a bound + //~| NOTE use `std::sync::Arc` instead } // Deferred path, main has to wait until typeck finishes, diff --git a/tests/ui/impl-trait/auto-trait-leak2.stderr b/tests/ui/impl-trait/auto-trait-leak2.stderr index 52fa28145d6..f2f88215a39 100644 --- a/tests/ui/impl-trait/auto-trait-leak2.stderr +++ b/tests/ui/impl-trait/auto-trait-leak2.stderr @@ -10,6 +10,7 @@ LL | send(before()); | required by a bound introduced by this call | = help: within `impl Fn(i32)`, the trait `Send` is not implemented for `Rc<Cell<i32>>` + = note: use `std::sync::Arc` instead of `std::rc::Rc` note: required because it's used within this closure --> $DIR/auto-trait-leak2.rs:10:5 | @@ -27,7 +28,7 @@ LL | fn send<T: Send>(_: T) {} | ^^^^ required by this bound in `send` error[E0277]: `Rc<Cell<i32>>` cannot be sent between threads safely - --> $DIR/auto-trait-leak2.rs:25:10 + --> $DIR/auto-trait-leak2.rs:26:10 | LL | send(after()); | ---- ^^^^^^^ `Rc<Cell<i32>>` cannot be sent between threads safely @@ -38,13 +39,14 @@ LL | fn after() -> impl Fn(i32) { | ------------ within this `impl Fn(i32)` | = help: within `impl Fn(i32)`, the trait `Send` is not implemented for `Rc<Cell<i32>>` + = note: use `std::sync::Arc` instead of `std::rc::Rc` note: required because it's used within this closure - --> $DIR/auto-trait-leak2.rs:38:5 + --> $DIR/auto-trait-leak2.rs:40:5 | LL | move |x| p.set(x) | ^^^^^^^^ note: required because it appears within the type `impl Fn(i32)` - --> $DIR/auto-trait-leak2.rs:33:15 + --> $DIR/auto-trait-leak2.rs:35:15 | LL | fn after() -> impl Fn(i32) { | ^^^^^^^^^^^^ diff --git a/tests/ui/impl-trait/in-trait/check-wf-on-non-defaulted-rpitit.stderr b/tests/ui/impl-trait/in-trait/check-wf-on-non-defaulted-rpitit.stderr index dee87d08238..687c811a5d5 100644 --- a/tests/ui/impl-trait/in-trait/check-wf-on-non-defaulted-rpitit.stderr +++ b/tests/ui/impl-trait/in-trait/check-wf-on-non-defaulted-rpitit.stderr @@ -5,6 +5,7 @@ LL | fn bar() -> Wrapper<impl Sized>; | ^^^^^^^^^^^^^^^^^^^ `impl Sized` cannot be sent between threads safely | = help: the trait `Send` is not implemented for `impl Sized` + = note: consider using `std::sync::Arc<impl Sized>`; for more information visit <https://doc.rust-lang.org/book/ch16-03-shared-state.html> note: required by a bound in `Wrapper` --> $DIR/check-wf-on-non-defaulted-rpitit.rs:3:19 | |