rust/compiler/rustc_hir_analysis
Yuki Okushi b263b7e64c
Rollup merge of #102338 - compiler-errors:assoc-ty-binding-in-assoc-ty-binding, r=cjgillot
Deny associated type bindings within associated type bindings

Fixes #102335

This was made worse by #100865, which unified the way we generate substs for GATs and non-generic associated types. However, the issue was not _caused_ by #100865, evidenced by the test I added for GATs:

```rust
trait T {
    type A: S<C<(), i32 = ()> = ()>;
    //~^ ERROR associated type bindings are not allowed here
}

trait Q {}

trait S {
    type C<T>: Q;
}

fn main() {}
```

^ which passes on beta (where GATs are stable) and presumably ever since GATs support was added to `create_substs_for_associated_item` in astconv.
2022-09-28 13:07:18 +09:00
..
src Rollup merge of #102338 - compiler-errors:assoc-ty-binding-in-assoc-ty-binding, r=cjgillot 2022-09-28 13:07:18 +09:00
Cargo.toml rustc_typeck to rustc_hir_analysis 2022-09-27 10:37:23 +02:00
README.md rustc_typeck to rustc_hir_analysis 2022-09-27 10:37:23 +02:00

For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.