14 lines
275 B
Rust
14 lines
275 B
Rust
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#![feature(negative_impls)]
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#![feature(auto_traits)]
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auto trait AutoTrait {}
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impl<T> !AutoTrait for [T] {}
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fn needs_auto_trait<T: AutoTrait + ?Sized>() {}
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fn main() {
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needs_auto_trait::<str>();
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//~^ ERROR the trait bound `[u8]: AutoTrait` is not satisfied in `str`
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}
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