mirror of https://github.com/rust-lang/rust
27 lines
467 B
Rust
27 lines
467 B
Rust
//@ check-pass
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//@ compile-flags: -Zvalidate-mir
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// This test checks that bivariant parameters are handled correctly
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// in the mir.
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#![allow(coherence_leak_check)]
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trait Trait {
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type Assoc;
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}
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struct Foo<T, U>(T)
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where
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T: Trait<Assoc = U>;
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impl Trait for for<'a> fn(&'a ()) {
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type Assoc = u32;
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}
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impl Trait for fn(&'static ()) {
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type Assoc = String;
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}
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fn foo(x: Foo<for<'a> fn(&'a ()), u32>) -> Foo<fn(&'static ()), String> {
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x
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}
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fn main() {}
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