Rollup of 6 pull requests #129174
Closed
Rollup of 6 pull requests #129174
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
and move implementation details into a submodule
`Either` is wasteful for a one-or-none iterator, especially since `Once` is already an `option::IntoIter` internally. We don't really need any of the iterator mechanisms in this case, just a single conditional insert.
…r, r=dtolnay Stabilize `Ready::into_inner()` This PR stabilizes `Ready::into_inner()`. Tracking issue: rust-lang#101196. Implementation PR: rust-lang#101189. Closes rust-lang#101196.
…olnay CloneToUninit impls As per rust-lang#126799. Also implements it for `Wtf8` and both versions of `os_str::Slice`. Maybe it is worth to slap `#[inline]` on some of those impls. r? `@dtolnay`
…eril mir/pretty: use `Option` instead of `Either<Once, Empty>` `Either` is wasteful for a one-or-none iterator, especially since `Once` is already an `option::IntoIter` internally. We don't really need any of the iterator mechanisms in this case, just a single conditional insert.
…r=compiler-errors Return correct HirId when finding body owner in diagnostics Fixes rust-lang#129145 Fixes rust-lang#128810 r? `@compiler-errors` ```rust fn generic<const N: u32>() {} trait Collate<const A: u32> { type Pass; fn collate(self) -> Self::Pass; } impl<const B: u32> Collate<B> for i32 { type Pass = (); fn collate(self) -> Self::Pass { generic::<{ true }>() //~^ ERROR: mismatched types } } ``` When type checking the `{ true }` anon const we would error with a type mismatch. This then results in diagnostics code attempting to check whether its due to a type mismatch with the return type. That logic was implemented by walking up the hir until we reached the body owner, except instead of using the `enclosing_body_owner` function it special cased various hir nodes incorrectly resulting in us walking out of the anon const and stopping at `fn collate` instead. This then resulted in diagnostics logic inside of the anon consts `ParamEnv` attempting to do trait solving involving the `<i32 as Collate<B>>::Pass` type which ICEs because it is in the wrong environment. I have rewritten this function to just walk up until it hits the `enclosing_body_owner` and made some other changes since I found this pretty hard to read/understand. Hopefully it's easier to understand now, it also makes it more obvious that this is not implemented in a very principled way and is definitely missing cases :)
rustbot
added
S-waiting-on-review
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Successful merges:
Ready::into_inner()#116528 (StabilizeReady::into_inner())try_from_lit#129042 (Special-case alias ty during the delayed bug emission intry_from_lit)is_none_or#129086 (Stabilizeis_none_or)Optioninstead ofEither<Once, Empty>#129167 (mir/pretty: useOptioninstead ofEither<Once, Empty>)r? @ghost
@rustbot modify labels: rollup
Create a similar rollup