b1d08275a9
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.
13 lines
255 B
Rust
13 lines
255 B
Rust
type Bar<'a, 'b> = Box<dyn PartialEq<Bar<'a, 'b>>>;
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//~^ ERROR cycle detected when expanding type alias
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fn bar<'a, 'b>(i: &'a i32) -> Bar<'a, 'b> {
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Box::new(i)
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}
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fn main() {
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let meh = 42;
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let muh = 42;
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assert!(bar(&meh) == bar(&muh));
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}
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