mirror of https://github.com/rust-lang/rust
27 lines
669 B
Rust
27 lines
669 B
Rust
//! This test checks that when checking for opaque types that
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//! only differ in lifetimes, we handle the case of non-generic
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//! regions correctly.
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#![feature(type_alias_impl_trait)]
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fn id2<'a, 'b>(s: (&'a str, &'b str)) -> (&'a str, &'b str) {
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s
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}
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type Opaque<'a> = impl Sized + 'a;
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fn test() -> impl for<'a, 'b> Fn((&'a str, &'b str)) -> (Opaque<'a>, Opaque<'b>) {
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id2 //~ ERROR expected generic lifetime parameter, found `'a`
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}
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fn id(s: &str) -> &str {
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s
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}
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type Opaque2<'a> = impl Sized + 'a;
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fn test2(s: &str) -> (impl Fn(&str) -> Opaque2<'_>, Opaque2<'_>) {
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(id, s) //~ ERROR: expected generic lifetime parameter, found `'_`
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}
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fn main() {}
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