rust/tests/ui/traits/alias/self-in-generics.rs
León Orell Valerian Liehr 82c2c8deb1
Update (doc) comments
Several (doc) comments were super outdated or didn't provide enough context.

Some doc comments shoved everything in a single paragraph without respecting
the fact that the first paragraph should be a single sentence because rustdoc
treats these as item descriptions / synopses on module pages.
2024-03-22 06:31:51 +01:00

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Rust

// HIR ty lowering uses `FreshTy(0)` as a dummy `Self` type when instanciating trait objects.
// This `FreshTy(0)` can leak into substs, causing ICEs in several places.
#![feature(trait_alias)]
pub trait SelfInput = Fn(&mut Self);
pub fn f(_f: &dyn SelfInput) {}
//~^ ERROR the trait alias `SelfInput` cannot be made into an object [E0038]
fn main() {}