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rust/tests/rustdoc-ui/private-type-cycle-110629.rs

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rustdoc: catch and don't blow up on impl Trait cycles An odd feature of Rust is that `Foo` is invalid, but `Bar` is okay: type Foo<'a, 'b> = Box<dyn PartialEq<Foo<'a, 'b>>>; type Bar<'a, 'b> = impl PartialEq<Bar<'a, 'b>>; To get it right, track every time rustdoc descends into a type alias, so if it shows up twice, it can be write the path instead of infinitely expanding it.
2023-04-20 18:08:06 -07:00
//@ check-pass
Add URL and crate_name to test cases
2024-09-12 13:38:24 -07:00
// https://github.com/rust-lang/rust/issues/110629
rustdoc: catch and don't blow up on impl Trait cycles An odd feature of Rust is that `Foo` is invalid, but `Bar` is okay: type Foo<'a, 'b> = Box<dyn PartialEq<Foo<'a, 'b>>>; type Bar<'a, 'b> = impl PartialEq<Bar<'a, 'b>>; To get it right, track every time rustdoc descends into a type alias, so if it shows up twice, it can be write the path instead of infinitely expanding it.
2023-04-20 18:08:06 -07:00
#![feature(type_alias_impl_trait)]
type Bar<'a, 'b> = impl PartialEq<Bar<'a, 'b>> + std::fmt::Debug;
fn bar<'a, 'b>(i: &'a i32) -> Bar<'a, 'b> {
i
}
fn main() {
let meh = 42;
let muh = 42;
assert_eq!(bar(&meh), bar(&muh));
}
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