mirror of https://github.com/rust-lang/rust
25 lines
547 B
Rust
25 lines
547 B
Rust
//@ check-pass
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// We try to prove `T::Rigid: Into<?0>` and have 2 candidates from where-clauses:
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//
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// - `Into<String>`
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// - `Into<<T::Rigid as Elaborate>::Assoc>`
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//
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// This causes ambiguity unless we normalize the alias in the second candidate
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// to detect that they actually result in the same constraints.
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trait Trait {
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type Rigid: Elaborate<Assoc = String> + Into<String>;
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}
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trait Elaborate: Into<Self::Assoc> {
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type Assoc;
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}
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fn impls<T: Into<U>, U>(_: T) {}
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fn test<P: Trait>(rigid: P::Rigid) {
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impls(rigid);
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}
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fn main() {}
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