diff options
Diffstat (limited to '')
| -rw-r--r-- | tests/ui/sync/mutexguard-sync.rs (renamed from tests/ui/mutexguard-sync.rs) | 0 | ||||
| -rw-r--r-- | tests/ui/sync/mutexguard-sync.stderr (renamed from tests/ui/mutexguard-sync.stderr) | 1 | ||||
| -rw-r--r-- | tests/ui/sync/suggest-cell.rs | 31 | ||||
| -rw-r--r-- | tests/ui/sync/suggest-cell.stderr | 59 | ||||
| -rw-r--r-- | tests/ui/sync/suggest-once-cell.rs | 12 | ||||
| -rw-r--r-- | tests/ui/sync/suggest-once-cell.stderr | 17 | ||||
| -rw-r--r-- | tests/ui/sync/suggest-ref-cell.rs | 12 | ||||
| -rw-r--r-- | tests/ui/sync/suggest-ref-cell.stderr | 17 |
8 files changed, 149 insertions, 0 deletions
diff --git a/tests/ui/mutexguard-sync.rs b/tests/ui/sync/mutexguard-sync.rs index b56418383..b56418383 100644 --- a/tests/ui/mutexguard-sync.rs +++ b/tests/ui/sync/mutexguard-sync.rs diff --git a/tests/ui/mutexguard-sync.stderr b/tests/ui/sync/mutexguard-sync.stderr index 3fbb2ddf1..4dc557119 100644 --- a/tests/ui/mutexguard-sync.stderr +++ b/tests/ui/sync/mutexguard-sync.stderr @@ -7,6 +7,7 @@ LL | test_sync(guard); | required by a bound introduced by this call | = help: the trait `Sync` is not implemented for `Cell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicI32` instead = note: required for `MutexGuard<'_, Cell<i32>>` to implement `Sync` note: required by a bound in `test_sync` --> $DIR/mutexguard-sync.rs:5:17 diff --git a/tests/ui/sync/suggest-cell.rs b/tests/ui/sync/suggest-cell.rs new file mode 100644 index 000000000..3284eae7b --- /dev/null +++ b/tests/ui/sync/suggest-cell.rs @@ -0,0 +1,31 @@ +fn require_sync<T: Sync>() {} +//~^ NOTE required by this bound in `require_sync` +//~| NOTE required by this bound in `require_sync` +//~| NOTE required by this bound in `require_sync` +//~| NOTE required by this bound in `require_sync` +//~| NOTE required by a bound in `require_sync` +//~| NOTE required by a bound in `require_sync` +//~| NOTE required by a bound in `require_sync` +//~| NOTE required by a bound in `require_sync` + +fn main() { + require_sync::<std::cell::Cell<()>>(); + //~^ ERROR `Cell<()>` cannot be shared between threads safely + //~| NOTE `Cell<()>` cannot be shared between threads safely + //~| NOTE if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` + + require_sync::<std::cell::Cell<u8>>(); + //~^ ERROR `Cell<u8>` cannot be shared between threads safely + //~| NOTE `Cell<u8>` cannot be shared between threads safely + //~| NOTE if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicU8` instead + + require_sync::<std::cell::Cell<i32>>(); + //~^ ERROR `Cell<i32>` cannot be shared between threads safely + //~| NOTE `Cell<i32>` cannot be shared between threads safely + //~| NOTE if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicI32` instead + + require_sync::<std::cell::Cell<bool>>(); + //~^ ERROR `Cell<bool>` cannot be shared between threads safely + //~| NOTE `Cell<bool>` cannot be shared between threads safely + //~| NOTE if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicBool` instead +} diff --git a/tests/ui/sync/suggest-cell.stderr b/tests/ui/sync/suggest-cell.stderr new file mode 100644 index 000000000..c232c1ccd --- /dev/null +++ b/tests/ui/sync/suggest-cell.stderr @@ -0,0 +1,59 @@ +error[E0277]: `Cell<()>` cannot be shared between threads safely + --> $DIR/suggest-cell.rs:12:20 + | +LL | require_sync::<std::cell::Cell<()>>(); + | ^^^^^^^^^^^^^^^^^^^ `Cell<()>` cannot be shared between threads safely + | + = help: the trait `Sync` is not implemented for `Cell<()>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` +note: required by a bound in `require_sync` + --> $DIR/suggest-cell.rs:1:20 + | +LL | fn require_sync<T: Sync>() {} + | ^^^^ required by this bound in `require_sync` + +error[E0277]: `Cell<u8>` cannot be shared between threads safely + --> $DIR/suggest-cell.rs:17:20 + | +LL | require_sync::<std::cell::Cell<u8>>(); + | ^^^^^^^^^^^^^^^^^^^ `Cell<u8>` cannot be shared between threads safely + | + = help: the trait `Sync` is not implemented for `Cell<u8>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicU8` instead +note: required by a bound in `require_sync` + --> $DIR/suggest-cell.rs:1:20 + | +LL | fn require_sync<T: Sync>() {} + | ^^^^ required by this bound in `require_sync` + +error[E0277]: `Cell<i32>` cannot be shared between threads safely + --> $DIR/suggest-cell.rs:22:20 + | +LL | require_sync::<std::cell::Cell<i32>>(); + | ^^^^^^^^^^^^^^^^^^^^ `Cell<i32>` cannot be shared between threads safely + | + = help: the trait `Sync` is not implemented for `Cell<i32>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicI32` instead +note: required by a bound in `require_sync` + --> $DIR/suggest-cell.rs:1:20 + | +LL | fn require_sync<T: Sync>() {} + | ^^^^ required by this bound in `require_sync` + +error[E0277]: `Cell<bool>` cannot be shared between threads safely + --> $DIR/suggest-cell.rs:27:20 + | +LL | require_sync::<std::cell::Cell<bool>>(); + | ^^^^^^^^^^^^^^^^^^^^^ `Cell<bool>` cannot be shared between threads safely + | + = help: the trait `Sync` is not implemented for `Cell<bool>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicBool` instead +note: required by a bound in `require_sync` + --> $DIR/suggest-cell.rs:1:20 + | +LL | fn require_sync<T: Sync>() {} + | ^^^^ required by this bound in `require_sync` + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/sync/suggest-once-cell.rs b/tests/ui/sync/suggest-once-cell.rs new file mode 100644 index 000000000..82fca45b1 --- /dev/null +++ b/tests/ui/sync/suggest-once-cell.rs @@ -0,0 +1,12 @@ +#![feature(once_cell)] + +fn require_sync<T: Sync>() {} +//~^ NOTE required by this bound in `require_sync` +//~| NOTE required by a bound in `require_sync` + +fn main() { + require_sync::<std::cell::OnceCell<()>>(); + //~^ ERROR `OnceCell<()>` cannot be shared between threads safely + //~| NOTE `OnceCell<()>` cannot be shared between threads safely + //~| NOTE use `std::sync::OnceLock` instead +} diff --git a/tests/ui/sync/suggest-once-cell.stderr b/tests/ui/sync/suggest-once-cell.stderr new file mode 100644 index 000000000..fadf05374 --- /dev/null +++ b/tests/ui/sync/suggest-once-cell.stderr @@ -0,0 +1,17 @@ +error[E0277]: `OnceCell<()>` cannot be shared between threads safely + --> $DIR/suggest-once-cell.rs:8:20 + | +LL | require_sync::<std::cell::OnceCell<()>>(); + | ^^^^^^^^^^^^^^^^^^^^^^^ `OnceCell<()>` cannot be shared between threads safely + | + = help: the trait `Sync` is not implemented for `OnceCell<()>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::OnceLock` instead +note: required by a bound in `require_sync` + --> $DIR/suggest-once-cell.rs:3:20 + | +LL | fn require_sync<T: Sync>() {} + | ^^^^ required by this bound in `require_sync` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/sync/suggest-ref-cell.rs b/tests/ui/sync/suggest-ref-cell.rs new file mode 100644 index 000000000..6b972ae09 --- /dev/null +++ b/tests/ui/sync/suggest-ref-cell.rs @@ -0,0 +1,12 @@ +#![feature(once_cell)] + +fn require_sync<T: Sync>() {} +//~^ NOTE required by this bound in `require_sync` +//~| NOTE required by a bound in `require_sync` + +fn main() { + require_sync::<std::cell::RefCell<()>>(); + //~^ ERROR `RefCell<()>` cannot be shared between threads safely + //~| NOTE `RefCell<()>` cannot be shared between threads safely + //~| NOTE use `std::sync::RwLock` instead +} diff --git a/tests/ui/sync/suggest-ref-cell.stderr b/tests/ui/sync/suggest-ref-cell.stderr new file mode 100644 index 000000000..9e8b8fcb4 --- /dev/null +++ b/tests/ui/sync/suggest-ref-cell.stderr @@ -0,0 +1,17 @@ +error[E0277]: `RefCell<()>` cannot be shared between threads safely + --> $DIR/suggest-ref-cell.rs:8:20 + | +LL | require_sync::<std::cell::RefCell<()>>(); + | ^^^^^^^^^^^^^^^^^^^^^^ `RefCell<()>` cannot be shared between threads safely + | + = help: the trait `Sync` is not implemented for `RefCell<()>` + = note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead +note: required by a bound in `require_sync` + --> $DIR/suggest-ref-cell.rs:3:20 + | +LL | fn require_sync<T: Sync>() {} + | ^^^^ required by this bound in `require_sync` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. |