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This reverts commit e9765781b2857da90161157a3fc523f9e1d58848.
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Remove the witness type from coroutine *args* (without actually removing the type)
This does as much of rust-lang/rust#144157 as we can without having to break rust-lang/rust#143545 and/or introduce some better way of handling higher ranked assumptions.
Namely, it:
* Stalls coroutines based off of the *coroutine* type rather than the witness type.
* Reworks the dtorck constraint hack to not rely on the witness type.
* Removes the witness type from the args of the coroutine, eagerly creating the type for nested obligations when needed (auto/clone impls).
I'll experiment with actually removing the witness type in a follow-up.
r? lcnr
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merge rustc_attr_data_structures into rustc_hir
this move was discussed on zulip: [#t-compiler > attribute parsing rework @ 💬](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/attribute.20parsing.20rework/near/528530091)
Many PRs in the attribute rework depend on this move.
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Deduplicate `IntTy`/`UintTy`/`FloatTy`.
There are identical definitions in `rustc_type_ir` and `rustc_ast`. This commit removes them and places a single definition in `rustc_ast_ir`. This requires adding `rust_span` as a dependency of `rustc_ast_ir`, but means a bunch of silly conversion functions can be removed.
r? `@fmease`
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There are identical definitions in `rustc_type_ir` and `rustc_ast`. This
commit removes them and places a single definition in `rustc_ast_ir`.
This requires adding `rust_span` as a dependency of `rustc_ast_ir`, but
means a bunch of silly conversion functions can be removed.
The one annoying wrinkle is that the old version had differences in
their `Debug` impls, e.g. one printed `u32` while the other printed
`U32`. Some compiler error messages rely on the former (yuk), and some
clippy output depends on the latter. So the commit also changes clippy
to not rely on `Debug` and just implement what it needs itself.
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Rollup of 3 pull requests
Successful merges:
- rust-lang/rust#144657 (fix: Only "close the window" when its the last annotated file)
- rust-lang/rust#144665 (Re-block SRoA on SIMD types)
- rust-lang/rust#144713 (`rustc_middle::ty` cleanups)
r? `@ghost`
`@rustbot` modify labels: rollup
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- Put them in the module that defines the type.
- Add some `WithCachedTypeInfo<T>` asserts for consistency.
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It's only used in `rustc_hir_typeck`.
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It's identical to `TyCtxt::get_all_attrs` except it takes `DefId`
instead of `impl Into<DefIf>`.
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The fields are public, so this doesn't need a method, normal
deconstruction and/or field access is good enough.
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It's only used in `rustc_infer`.
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It's only used there.
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It's only used in `rustc_hir_typeck`.
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Next to all the other `EarlyParamRegion` pieces.
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It's not used in `rustc_middle`, and `rustc_trait_selection` is a better
place for it.
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It's not used in `rustc_middle`, and `rustc_resolve` is a better place
for it.
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Pick the largest niche even if the largest niche is wrapped around
fixes rust-lang/rust#144388
r? `@scottmcm`
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This is dead code.
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Some `let chains` clean-up
Not sure if this kind of clean-up is welcoming because of size, but I decided to try out one
r? compiler
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r=jdonszelmann,traviscross
Port the proc macro attributes to the new attribute parsing infrastructure
Ports `#[proc_macro]`, `#[proc_macro_attribute]`, `#[proc_macro_derive]` and `#[rustc_builtin_macro]` to the new attribute parsing infrastructure for https://github.com/rust-lang/rust/issues/131229#issuecomment-2971351163
I've split this PR into commits for reviewability, and left some comments to clarify things
I did 4 related attributes in one PR because they share a lot of their code and logic, and doing them separately is kind of annoying as I need to leave both the old and new parsing in place then.
r? ``@oli-obk``
cc ``@jdonszelmann``
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Preintern some `TyKind::Bound` values
The new trait solver produces a lot of these.
r? `@compiler-errors`
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Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>
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Small cleanup: Use LocalKey<Cell> methods more
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We already do the same thing for bound regions. This is a small perf win
for the new trait solver.
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- Cover `DebruijnIndex(2)`, for slightly better coverage.
- Rename some things, to account for other region things that were
renamed.
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Ensure we codegen the main fn
This fixes two bugs. The one that was identified in the linked issue is that when we have a `main` function, mono collection didn't consider it as an extra collection root.
The other is that since CGU partitioning doesn't know about the call edges between the entrypoint functions, naively it can put them in different CGUs and mark them all as internal. Which would result in LLVM just deleting all of them. There was an existing hack to exclude `lang = "start"` from internalization, which I've extended to include `main`.
Fixes https://github.com/rust-lang/rust/issues/144052
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Unquerify extern_mod_stmt_cnum.
Based on https://github.com/rust-lang/rust/pull/143247
r? `````@ghost````` for perf
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Unquerify maybe_unused_trait_imports.
Based on https://github.com/rust-lang/rust/pull/143247
r? ```@ghost``` for perf
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Don't consider unstable fields always-inhabited
This reverts the hack in https://github.com/rust-lang/rust/pull/133889 now that `Pin`'s field is no longer public.
Fixes https://github.com/rust-lang/rust/issues/143468.
r? ```@compiler-errors```
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This reverts the hack in https://github.com/rust-lang/rust/pull/133889
now that `Pin`'s field is no longer public.
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Remove pretty print hack for async blocks
I introduced this hack 3 years ago, but it's not needed anymore, probably due to https://github.com/rust-lang/rust/pull/104321.
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Split-up stability_index query
This PR aims to move deprecation and stability processing away from the monolithic `stability_index` query, and directly implement `lookup_{deprecation,stability,body_stability,const_stability}` queries.
The basic idea is to:
- move per-attribute sanity checks into `check_attr.rs`;
- move attribute compatibility checks into the `MissingStabilityAnnotations` visitor;
- progressively dismantle the `Annotator` visitor and the `stability_index` query.
The first commit contains functional change, and now warns when `#[automatically_derived]` is applied on a non-trait impl block. The other commits should not change visible behaviour.
Perf in https://github.com/rust-lang/rust/pull/143845#issuecomment-3066308630 shows small but consistent improvement, except for unused-warnings case. That case being a stress test, I'm leaning towards accepting the regression.
This PR changes `check_attr`, so has a high conflict rate on that file. This should not cause issues for review.
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