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11 lines
244 B
Rust
11 lines
244 B
Rust
#![feature(type_alias_impl_trait)]
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type X<'a, 'b> = impl std::fmt::Debug;
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fn f<'t, 'u>(a: &'t u32, b: &'u u32) -> (X<'t, 'u>, X<'u, 't>) {
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(a, a)
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//~^ ERROR concrete type differs from previous defining opaque type use
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}
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fn main() {}
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