mirror of https://github.com/rust-lang/rust
22 lines
390 B
Rust
22 lines
390 B
Rust
//@ check-pass
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// issue: 114113
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//@ revisions: current next
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@[next] compile-flags: -Znext-solver
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#![feature(trait_upcasting)]
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trait Mirror {
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type Assoc;
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}
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impl<T> Mirror for T {
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type Assoc = T;
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}
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trait Bar<T> {}
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trait Foo<T>: Bar<<T as Mirror>::Assoc> {}
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fn upcast<T>(x: &dyn Foo<T>) -> &dyn Bar<T> { x }
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fn main() {}
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