33 lines
708 B
Rust
33 lines
708 B
Rust
// run-pass
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#![allow(unused_doc_comments)]
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#![feature(auto_traits)]
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#![feature(negative_impls)]
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auto trait Auto {}
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unsafe auto trait AutoUnsafe {}
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impl !Auto for bool {}
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impl !AutoUnsafe for bool {}
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struct AutoBool(#[allow(dead_code)] bool);
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impl Auto for AutoBool {}
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unsafe impl AutoUnsafe for AutoBool {}
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fn take_auto<T: Auto>(_: T) {}
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fn take_auto_unsafe<T: AutoUnsafe>(_: T) {}
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fn main() {
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// Parse inside functions.
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auto trait AutoInner {}
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unsafe auto trait AutoUnsafeInner {}
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take_auto(0);
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take_auto(AutoBool(true));
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take_auto_unsafe(0);
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take_auto_unsafe(AutoBool(true));
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/// Auto traits are allowed in trait object bounds.
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let _: &(dyn Send + Auto) = &0;
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}
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