32 lines
1.7 KiB
Rust
32 lines
1.7 KiB
Rust
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fn require_sync<T: Sync>() {}
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//~^ NOTE required by this bound in `require_sync`
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//~| NOTE required by this bound in `require_sync`
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//~| NOTE required by this bound in `require_sync`
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//~| NOTE required by this bound in `require_sync`
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//~| NOTE required by a bound in `require_sync`
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//~| NOTE required by a bound in `require_sync`
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//~| NOTE required by a bound in `require_sync`
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//~| NOTE required by a bound in `require_sync`
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fn main() {
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require_sync::<std::cell::Cell<()>>();
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//~^ ERROR `Cell<()>` cannot be shared between threads safely
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//~| NOTE `Cell<()>` cannot be shared between threads safely
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//~| NOTE if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock`
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require_sync::<std::cell::Cell<u8>>();
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//~^ ERROR `Cell<u8>` cannot be shared between threads safely
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//~| NOTE `Cell<u8>` cannot be shared between threads safely
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//~| NOTE if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicU8` instead
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require_sync::<std::cell::Cell<i32>>();
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//~^ ERROR `Cell<i32>` cannot be shared between threads safely
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//~| NOTE `Cell<i32>` cannot be shared between threads safely
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//~| NOTE if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicI32` instead
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require_sync::<std::cell::Cell<bool>>();
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//~^ ERROR `Cell<bool>` cannot be shared between threads safely
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//~| NOTE `Cell<bool>` cannot be shared between threads safely
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//~| NOTE if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` or `std::sync::atomic::AtomicBool` instead
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}
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