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22 lines
468 B
Rust
22 lines
468 B
Rust
// compile-flags: -Ztrait-solver=next
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// check-pass
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#![feature(ptr_metadata)]
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use std::ptr::{DynMetadata, Pointee};
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trait Trait<U> {}
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struct MyDst<T: ?Sized>(T);
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fn meta_is<T: Pointee<Metadata = U> + ?Sized, U>() {}
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fn works<T>() {
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meta_is::<T, ()>();
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meta_is::<[T], usize>();
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meta_is::<str, usize>();
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meta_is::<dyn Trait<T>, DynMetadata<dyn Trait<T>>>();
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meta_is::<MyDst<T>, ()>();
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meta_is::<((((([u8],),),),),), usize>();
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}
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fn main() {}
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