ede0a71b9e
The following code is supposed to compile ```rust use std::ops::BitOr; pub trait IntWrapper { type InternalStorage; } impl<T> BitOr for dyn IntWrapper<InternalStorage = T> where Self: Sized, T: BitOr + BitOr<Output = T>, { type Output = Self; fn bitor(self, _other: Self) -> Self { todo!() } } ``` Before this change it would ICE. In #70998 the removed logic was added to provide better suggestions, and the `delay_span_bug` guard was added to protect against a potential logic error when returning traits. As it happens, there are cases, like the one above, where traits can indeed be returned, so valid code was being rejected. Fix #80207. |
||
---|---|---|
.. | ||
src | ||
Cargo.toml | ||
README.md |
For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.