Commit Graph

50 Commits

Author SHA1 Message Date
John Kåre Alsaker
fff20a703d Move expansion of query macros in rustc_middle to rustc_middle::query 2023-05-15 08:49:13 +02:00
Matthias Krüger
297b222066
Rollup merge of #110556 - kylematsuda:earlybinder-explicit-item-bounds, r=compiler-errors
Switch to `EarlyBinder` for `explicit_item_bounds`

Part of the work to finish https://github.com/rust-lang/rust/issues/105779.

This PR adds `EarlyBinder` to the return type of the `explicit_item_bounds` query and removes `bound_explicit_item_bounds`.

r? `@compiler-errors` (hope it's okay to request you, since you reviewed #110299 and #110498 😃)
2023-04-25 21:06:32 +02:00
Oli Scherer
1ce80e210d Allow LocalDefId as the argument to def_path_str 2023-04-21 22:27:20 +00:00
Kyle Matsuda
e54854f6a9 add subst_identity_iter and subst_identity_iter_copied methods on EarlyBinder; use this to simplify some EarlyBinder noise around explicit_item_bounds calls 2023-04-20 12:36:50 -06:00
Kyle Matsuda
f3b279fcc5 add EarlyBinder to output of explicit_item_bounds; replace bound_explicit_item_bounds usages; remove bound_explicit_item_bounds query 2023-04-20 12:36:50 -06:00
Nicholas Nethercote
4460a1dc28 Remove TypeSuper{Foldable,Visitable} impls for Region.
These traits exist so that folders/visitors can recurse into types of
interest: binders, types, regions, predicates, and consts. But `Region`
is non-recursive and cannot contain other types of interest, so its
methods in these traits are trivial.

This commit inlines and removes those trivial methods.
2023-04-16 09:11:43 +10:00
Michael Goulet
7e6506764b IdentitySubsts::identity_for_item takes Into<DefId> 2023-03-21 15:38:52 +00:00
Michael Goulet
2eb1c08e43 Use local key in providers 2023-03-21 15:38:51 +00:00
Santiago Pastorino
e41491fe05
ImplTraitPlaceholder -> is_impl_trait_in_trait 2023-03-15 16:58:35 -03:00
Matthias Krüger
14260c83ac
Rollup merge of #108460 - obeis:hir-analysis-migrate-diagnostics-2, r=compiler-errors
migrate `rustc_hir_analysis` to session diagnostic [Part Two]

migrate `rustc_hir_analysis` to session diagnostic (part two)
files list:
- rustc_hir_analysis/variance/*
- rustc_hir_analysis/missing_cast_for_variadic_arg.rs
- rustc_hir_analysis/sized_unsized_cast.rs

Updates #100717
2023-03-07 19:57:43 +01:00
Obei Sideg
44eb974b23 migrate rustc_hir_analysis to session diagnostic
part two
files list:
rustc_hir_analysis/variance/*
rustc_hir_analysis/missing_cast_for_variadic_arg.rs
rustc_hir_analysis/sized_unsized_cast.rs
2023-03-05 00:01:55 +03:00
Vadim Petrochenkov
c83553da31 rustc_middle: Remove trait DefIdTree
This trait was a way to generalize over both `TyCtxt` and `Resolver`, but now `Resolver` has access to `TyCtxt`, so this trait is no longer necessary.
2023-03-02 23:46:44 +04:00
Alan Egerton
695072daa6
Remove type-traversal trait aliases 2023-02-22 17:04:58 +00:00
Kyle Matsuda
c183110cc2 remove bound_type_of query; make type_of return EarlyBinder; change type_of in metadata 2023-02-16 17:05:56 -07:00
Kyle Matsuda
d822b97a27 change usages of type_of to bound_type_of 2023-02-16 17:01:52 -07:00
Alan Egerton
dea342d861
Make visiting traits generic over the Interner 2023-02-13 10:24:49 +00:00
Alan Egerton
b409329c62
Workaround issue #107747
Only required until fix #107803 is merged into stage0 compiler, expected
when beta 1.69.0 is released on 2023-03-09, then this commit can be
reverted.
2023-02-13 10:24:47 +00:00
Alan Egerton
ba55a453eb
Alias folding/visiting traits instead of re-export 2023-02-13 10:24:46 +00:00
Esteban Küber
861f451235 Change to ReError(ErrorGuaranteed) 2023-02-09 10:26:49 +00:00
Esteban Küber
30cf7a3f51 Introduce ReError
CC #69314
2023-02-09 10:26:49 +00:00
Matthias Krüger
a5caa989c9
Rollup merge of #107339 - aliemjay:covariant, r=lcnr
internally change regions to be covariant

Surprisingly, we consider the reference type `&'a T` to be contravaraint in its lifetime parameter. This is confusing and conflicts with the documentation we have in the reference, rustnomicon, and rustc-dev-guide. This also arguably not the correct use of terminology since we can use `&'static u8` in a place where `&' a u8` is expected, this implies that `&'static u8 <: &' a u8` and consequently `'static <: ' a`, hence covariance.

Because of this, when relating two types, we used to switch the argument positions in a confusing way:
`Subtype(&'a u8 <: &'b u8) => Subtype('b <: 'a) => Outlives('a: 'b) => RegionSubRegion('b <= 'a)`

The reason for the current behavior is probably that we wanted `Subtype('b <: 'a)` and `RegionSubRegion('b <= 'a)` to be equivalent, but I don' t think this is a good reason since these relations are sufficiently different in that the first is a relation in the subtyping lattice and is intrinsic to the type-systems, while the the second relation is an implementation detail of regionck.

This PR changes this behavior to use covariance, so..
`Subtype(&'a u8 <: &'b u8) => Subtype('a <: 'b) => Outlives('a: 'b) => RegionSubRegion('b <= 'a) `

Resolves #103676

r? `@lcnr`
2023-01-28 05:20:18 +01:00
Camille GILLOT
1974b6b68d Introduce GeneratorWitnessMIR. 2023-01-27 18:58:44 +00:00
Ali MJ Al-Nasrawy
43cb610464
update comment on trait objects 2023-01-27 12:43:29 +03:00
Kyle Matsuda
c2414dfaa4 change fn_sig query to use EarlyBinder; remove bound_fn_sig query; add EarlyBinder to fn_sig in metadata 2023-01-26 20:28:25 -07:00
Kyle Matsuda
e982971ff2 replace usages of fn_sig query with bound_fn_sig 2023-01-26 20:15:36 -07:00
Ali MJ Al-Nasrawy
381187dc76 internally change regions to be covariant 2023-01-27 04:04:22 +03:00
bors
005fc0f00f Auto merge of #106977 - michaelwoerister:unord_id_collections, r=oli-obk
Use UnordMap and UnordSet for id collections (DefIdMap, LocalDefIdMap, etc)

This PR changes the `rustc_data_structures::define_id_collections!` macro to use `UnordMap` and `UnordSet` instead of `FxHashMap` and `FxHashSet`. This should account for a large portion of hash-maps being used in places where they can cause trouble.

The changes required are moderate but non-zero:
- In some places the collections are extracted into sorted vecs.
- There are a few instances where for-loops have been changed to extends.

~~Let's see what the performance impact is. With a bit more refactoring, we might be able to get rid of some of the additional sorting -- but the change set is already big enough. Unless there's a performance impact, I'd like to do further changes in subsequent PRs.~~

Performance does not seem to be negatively affected ([perf-run here](https://github.com/rust-lang/rust/pull/106977#issuecomment-1396776699)).

Part of [MCP 533](https://github.com/rust-lang/compiler-team/issues/533).

r? `@ghost`
2023-01-21 14:18:17 +00:00
bors
56ee85274e Auto merge of #106090 - WaffleLapkin:dereffffffffff, r=Nilstrieb
Remove some `ref` patterns from the compiler

Previous PR: https://github.com/rust-lang/rust/pull/105368

r? `@Nilstrieb`
2023-01-20 04:52:28 +00:00
Guillaume Gomez
246daa49ee
Rollup merge of #106931 - Ezrashaw:docs-e0208, r=compiler-errors
document + UI test `E0208` and make its output more user-friendly

Cleans up `E0208`'s output a lot. It could actually be useful for someone learning about variance now. I also added a UI test for it in `tests/ui/error-codes/` and wrote some docs for it.

r? `@GuillaumeGomez` another error code, can't be bothered to find the issue :P. Obviously there's some compiler stuff, so you'll have to hand it off.

Part of https://github.com/rust-lang/rust/issues/61137.
2023-01-19 11:19:35 +01:00
Michael Woerister
c3d2573120 Use UnordMap instead of FxHashMap in define_id_collections!(). 2023-01-19 10:40:47 +01:00
Ezra Shaw
708861e5b7
remove error code from #[rustc_variance] and document its remains 2023-01-18 21:10:27 +13:00
Scott McMurray
925dc37313 Stop using BREAK & CONTINUE in compiler
Switching them to `Break(())` and `Continue(())` instead.

libs-api would like to remove these constants, so stop using them in compiler to make the removal PR later smaller.
2023-01-17 23:17:51 -08:00
Maybe Waffle
6a28fb42a8 Remove double spaces after dots in comments 2023-01-17 08:09:33 +00:00
Maybe Waffle
09485eaae1 rustc_hir_analysis: remove ref patterns 2023-01-17 07:48:19 +00:00
Oli Scherer
6af3638709 Prevent the creation of TraitRef without dedicated methods 2022-12-14 15:36:39 +00:00
Oli Scherer
a5cd3bde95 Ensure no one constructs AliasTys themselves 2022-12-14 15:36:39 +00:00
Michael Goulet
99417d54af Address a few more nits 2022-12-13 17:56:04 +00:00
Michael Goulet
96cb18e864 Combine identical alias arms 2022-12-13 17:48:55 +00:00
Michael Goulet
61adaf8187 Combine projection and opaque into alias 2022-12-13 17:48:55 +00:00
Michael Goulet
c13bd83528 squash OpaqueTy and ProjectionTy into AliasTy 2022-12-13 17:40:27 +00:00
Michael Goulet
5c6afb850c ProjectionTy.item_def_id -> ProjectionTy.def_id 2022-12-13 17:34:44 +00:00
Michael Goulet
7f3af72606 Use ty::OpaqueTy everywhere 2022-12-13 17:29:26 +00:00
Camille GILLOT
44948d1fdc Recurse into nested impl-trait when computing variance. 2022-12-04 13:54:56 +00:00
Maybe Waffle
1d42936b18 Prefer doc comments over //-comments in compiler 2022-11-27 11:19:04 +00:00
Santiago Pastorino
974e2837bb
Introduce PredicateKind::Clause 2022-11-25 00:04:54 -03:00
Vadim Petrochenkov
7a5376d23c Unreserve braced enum variants in value namespace 2022-11-21 22:40:06 +03:00
Camille GILLOT
b552965a93 Typo. 2022-11-14 18:21:21 +00:00
Camille GILLOT
b95650930b Compute variance for opaques too. 2022-11-12 09:56:23 +00:00
Nicholas Nethercote
c8c25ce5a1 Rename some OwnerId fields.
spastorino noticed some silly expressions like `item_id.def_id.def_id`.

This commit renames several `def_id: OwnerId` fields as `owner_id`, so
those expressions become `item_id.owner_id.def_id`.

`item_id.owner_id.local_def_id` would be even clearer, but the use of
`def_id` for values of type `LocalDefId` is *very* widespread, so I left
that alone.
2022-10-29 20:28:38 +11:00
lcnr
1fc86a63f4 rustc_typeck to rustc_hir_analysis 2022-09-27 10:37:23 +02:00