mirror of https://github.com/rust-lang/rust
21 lines
343 B
Rust
21 lines
343 B
Rust
//@ check-pass
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#![feature(coerce_unsized, unsize)]
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use std::marker::Unsize;
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use std::ops::CoerceUnsized;
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struct Foo<T: ?Sized>(Box<T>);
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impl<T> CoerceUnsized<Foo<dyn Baz>> for Foo<T> where T: Unsize<dyn Baz> {}
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struct Bar;
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trait Baz {}
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impl Baz for Bar {}
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fn main() {
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let foo = Foo(Box::new(Bar));
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let foobar: Foo<Bar> = foo;
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}
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