Rustup #8468
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Rustup #8468
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Revert lazy TAIT PR Revert rust-lang/rust#92306 (sorry `@Aaron1011,` will include your changes in the fix PR) Revert rust-lang/rust#93783 Revert rust-lang/rust#92007 fixes rust-lang/rust#93788 fixes rust-lang/rust#93794 fixes rust-lang/rust#93821 fixes rust-lang/rust#93831 fixes rust-lang/rust#93841
Make `Res::SelfTy` a struct variant and update docs I found pattern matching on a `(Option<DefId>, Option<(DefId, bool)>)` to not be super readable, additionally the doc comments on the types in a tuple variant aren't visible anywhere at use sites as far as I can tell (using rust analyzer + vscode) The docs incorrectly assumed that the `DefId` in `Option<(DefId, bool)>` would only ever be for an impl item and I also found the code examples to be somewhat unclear about which `DefId` was being talked about. r? `@lcnr` since you reviewed the last PR changing these docs
Specifically, change `Ty` from this: ``` pub type Ty<'tcx> = &'tcx TyS<'tcx>; ``` to this ``` pub struct Ty<'tcx>(Interned<'tcx, TyS<'tcx>>); ``` There are two benefits to this. - It's now a first class type, so we can define methods on it. This means we can move a lot of methods away from `TyS`, leaving `TyS` as a barely-used type, which is appropriate given that it's not meant to be used directly. - The uniqueness requirement is now explicit, via the `Interned` type. E.g. the pointer-based `Eq` and `Hash` comes from `Interned`, rather than via `TyS`, which wasn't obvious at all. Much of this commit is boring churn. The interesting changes are in these files: - compiler/rustc_middle/src/arena.rs - compiler/rustc_middle/src/mir/visit.rs - compiler/rustc_middle/src/ty/context.rs - compiler/rustc_middle/src/ty/mod.rs Specifically: - Most mentions of `TyS` are removed. It's very much a dumb struct now; `Ty` has all the smarts. - `TyS` now has `crate` visibility instead of `pub`. - `TyS::make_for_test` is removed in favour of the static `BOOL_TY`, which just works better with the new structure. - The `Eq`/`Ord`/`Hash` impls are removed from `TyS`. `Interned`s impls of `Eq`/`Hash` now suffice. `Ord` is now partly on `Interned` (pointer-based, for the `Equal` case) and partly on `TyS` (contents-based, for the other cases). - There are many tedious sigil adjustments, i.e. adding or removing `*` or `&`. They seem to be unavoidable.
Specifically, change `Region` from this: ``` pub type Region<'tcx> = &'tcx RegionKind; ``` to this: ``` pub struct Region<'tcx>(&'tcx Interned<RegionKind>); ``` This now matches `Ty` and `Predicate` more closely. Things to note - Regions have always been interned, but we haven't been using pointer-based `Eq` and `Hash`. This is now happening. - I chose to impl `Deref` for `Region` because it makes pattern matching a lot nicer, and `Region` can be viewed as just a smart wrapper for `RegionKind`. - Various methods are moved from `RegionKind` to `Region`. - There is a lot of tedious sigil changes. - A couple of types like `HighlightBuilder`, `RegionHighlightMode` now have a `'tcx` lifetime because they hold a `Ty<'tcx>`, so they can call `mk_region`. - A couple of test outputs change slightly, I'm not sure why, but the new outputs are a little better.
Specifically, rename the `Const` struct as `ConstS` and re-introduce `Const` as this: ``` pub struct Const<'tcx>(&'tcx Interned<ConstS>); ``` This now matches `Ty` and `Predicate` more closely, including using pointer-based `eq` and `hash`. Notable changes: - `mk_const` now takes a `ConstS`. - `Const` was copy, despite being 48 bytes. Now `ConstS` is not, so need a we need separate arena for it, because we can't use the `Dropless` one any more. - Many `&'tcx Const<'tcx>`/`&Const<'tcx>` to `Const<'tcx>` changes - Many `ct.ty` to `ct.ty()` and `ct.val` to `ct.val()` changes. - Lots of tedious sigil fiddling.
There's still open discussion if this lint is ready to be enabled by default. We want to give us more time to figure this out and prevent this lint from getting to stable as an enabled-by-default lint.
…olnay Move transmute_undefined_repr back to nursery There's still open discussion if this lint is ready to be enabled by default. We want to give us more time to figure this out and prevent this lint from getting to stable as an enabled-by-default lint. cc rust-lang#8432 r? `@Manishearth` `@dtolnay` I think this is the way to go here. We can re-enable this lint with the next sync, if we should decide to do so. But I would hold of for this release. We have until Friday (beta branching) to decide if we want to merge this.
It should only include the identifier, or misspelling suggestions will be wrong.
Correctly mark the span of captured arguments in `format_args!()` It should not include the braces, or misspelling suggestions will be wrong. Fixes #94010.
Revert #91403 fixes #94004 r? `@pnkfelix` `@cjgillot`
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@bors r+ p=1 |
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📌 Commit ce1904f has been approved by |
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☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test |
This was referenced Feb 24, 2022
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r? @ghost
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