28 lines
622 B
Rust
28 lines
622 B
Rust
#![feature(optin_builtin_traits)]
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use std::marker::Send;
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struct TestType;
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impl !TestType {}
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//~^ ERROR inherent impls cannot be negative
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trait TestTrait {}
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unsafe impl !Send for TestType {}
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//~^ ERROR negative impls cannot be unsafe
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impl !TestTrait for TestType {}
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//~^ ERROR negative impls are only allowed for auto traits
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struct TestType2<T>(T);
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impl<T> !TestType2<T> {}
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//~^ ERROR inherent impls cannot be negative
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unsafe impl<T> !Send for TestType2<T> {}
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//~^ ERROR negative impls cannot be unsafe
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impl<T> !TestTrait for TestType2<T> {}
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//~^ ERROR negative impls are only allowed for auto traits
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fn main() {}
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