mirror of https://github.com/rust-lang/rust
33 lines
621 B
Rust
33 lines
621 B
Rust
//@ revisions: old next
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//@[next] compile-flags: -Znext-solver
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@ check-pass
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// A minimization of an ambiguity error in `icu_provider`.
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//
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// cc trait-system-refactor-initiative#110
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trait Yokeable<'a> {
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type Output;
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}
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trait Id {
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type Refl;
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}
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fn into_deserialized<M: Id>() -> M
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where
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M::Refl: for<'a> Yokeable<'a>,
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{
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try_map_project::<M, _>(|_| todo!())
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}
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fn try_map_project<M: Id, F>(_f: F) -> M
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where
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M::Refl: for<'a> Yokeable<'a>,
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F: for<'a> FnOnce(&'a ()) -> <<M as Id>::Refl as Yokeable<'a>>::Output,
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{
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todo!()
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}
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fn main() {}
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