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add raw identifier for keyword in suggestion
fix https://github.com/rust-lang/rust/issues/106841
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Tweak "borrow closure argument" suggestion
Fix #45727.
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Fix known-bug annotations
r? ``@Nilstrieb``
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[drop tracking] Visit break expressions
This fixes https://github.com/rust-lang/rust/issues/102383 by remembering to visit the expression in `break expr` when building the drop tracking CFG. Missing this step was causing an off-by-one error which meant after a number of awaits we'd be
looking for dropped values at the wrong point in the code.
Additionally, this changes the order of traversal for assignment expressions to visit the rhs and then the lhs. This matches what is done elsewhere.
Finally, this improves some of the debugging output (for example, the CFG visualizer) to make it easier to figure out these sorts of issues.
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rustdoc: Revert #104889
Reverts #104889.
I don't think I'll be able to finish https://github.com/rust-lang/rust/pull/107000 on time unfortunately so to prevent https://github.com/rust-lang/rust/issues/106373, better to revert it and to make it into the next release.
r? `@notriddle`
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Fix #45727.
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This reverts commit 9cce0bc583ee2cff88935ce0e08d8ec1eb1239a8.
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This reverts commit 9c46173895430c63066731440e00faf0ab2195dd.
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Don't wf-check non-local RPITs
We were using `ty::is_impl_trait_defn(..).is_none()` to check if we need to add WF obligations for an opaque type.
This is *supposed* to be checking if the type is a TAIT, since RPITs' wfness is implied by wf checking its parent item, but since `is_impl_trait_defn` returns `None` for non-local RPIT and async futures, we unnecessarily consider wf predicates for an RPIT if it is coming from a foreign crate.
Fixes #107036
r? `@oli-obk` but feel free to reassign
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even more unify Projection/Opaque handling in region outlives code
edit: This continues ate the same pace as #106829. New changes are described in https://github.com/rust-lang/rust/pull/106910#issuecomment-1383251254.
~This touches `OutlivesBound`, `Component`, `GenericKind` enums.~
r? `@oli-obk` (because of overlap with #95474)
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Rollup of 5 pull requests
Successful merges:
- #105977 (Transform async `ResumeTy` in generator transform)
- #106927 (make `CastError::NeedsDeref` create a `MachineApplicable` suggestion)
- #106931 (document + UI test `E0208` and make its output more user-friendly)
- #107027 (Remove extra removal from test path)
- #107037 (Fix Dominators::rank_partial_cmp to match documentation)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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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.
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make `CastError::NeedsDeref` create a `MachineApplicable` suggestion
Fixes #106903
Simple impl for the linked issue. I also made some other small changes:
- `CastError::ErrorGuaranteed` now owns an actual `ErrorGuaranteed`. This better enforces the static guarantees of `ErrorGuaranteed`.
- `CastError::NeedDeref` code simplified a bit, we now just suggest the `*`, instead of the whole expression as well.
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Transform async `ResumeTy` in generator transform
- Eliminates all the `get_context` calls that async lowering created.
- Replace all `Local` `ResumeTy` types with `&mut Context<'_>`.
The `Local`s that have their types replaced are:
- The `resume` argument itself.
- The argument to `get_context`.
- The yielded value of a `yield`.
The `ResumeTy` hides a `&mut Context<'_>` behind an unsafe raw pointer, and the `get_context` function is being used to convert that back to a `&mut Context<'_>`.
Ideally the async lowering would not use the `ResumeTy`/`get_context` indirection, but rather directly use `&mut Context<'_>`, however that would currently lead to higher-kinded lifetime errors.
See <https://github.com/rust-lang/rust/issues/105501>.
The async lowering step and the type / lifetime inference / checking are still using the `ResumeTy` indirection for the time being, and that indirection is removed here. After this transform, the generator body only knows about `&mut Context<'_>`.
---
Fixes https://github.com/bjorn3/rustc_codegen_cranelift/issues/1330 CC `@bjorn3`
r? `@compiler-errors`
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Implement `alloc::vec::IsZero` for `Option<$NUM>` types
Fixes #106911
Mirrors the `NonZero$NUM` implementations with an additional `assert_zero_valid`.
`None::<i32>` doesn't stricly satisfy `IsZero` but for the purpose of allocating we can produce more efficient codegen.
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- Eliminates all the `get_context` calls that async lowering created.
- Replace all `Local` `ResumeTy` types with `&mut Context<'_>`.
The `Local`s that have their types replaced are:
- The `resume` argument itself.
- The argument to `get_context`.
- The yielded value of a `yield`.
The `ResumeTy` hides a `&mut Context<'_>` behind an unsafe raw pointer, and the
`get_context` function is being used to convert that back to a `&mut Context<'_>`.
Ideally the async lowering would not use the `ResumeTy`/`get_context` indirection,
but rather directly use `&mut Context<'_>`, however that would currently
lead to higher-kinded lifetime errors.
See <https://github.com/rust-lang/rust/issues/105501>.
The async lowering step and the type / lifetime inference / checking are
still using the `ResumeTy` indirection for the time being, and that indirection
is removed here. After this transform, the generator body only knows about `&mut Context<'_>`.
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Various cleanups around pre-TyCtxt queries and functions
part of #105462
based on https://github.com/rust-lang/rust/pull/106776 (everything starting at [0e2b39f](https://github.com/rust-lang/rust/pull/106810/commits/0e2b39fd1ffde51b50d45ccbe41de52b85136b8b) is new in this PR)
r? `@petrochenkov`
I think this should be most of the uncontroversial part of #105462.
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Rollup of 8 pull requests
Successful merges:
- #105796 (rustdoc: simplify JS search routine by not messing with lev distance)
- #106753 (Make sure that RPITITs are not considered suggestable)
- #106917 (Encode const mir for closures if they're const)
- #107004 (Implement some candidates for the new solver (redux))
- #107023 (Stop using `BREAK` & `CONTINUE` in compiler)
- #107030 (Correct typo)
- #107042 (rustdoc: fix corner cases with "?" JS keyboard command)
- #107045 (rustdoc: remove redundant CSS rule `#settings .setting-line`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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r=GuillaumeGomez
rustdoc: remove redundant CSS rule `#settings .setting-line`
Since the current version of settings.js always nests things below a div with ID `settings`, this rule always overrode the one above.
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r=GuillaumeGomez
rustdoc: fix corner cases with "?" JS keyboard command
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Encode const mir for closures if they're const
Fixes #106913
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Make sure that RPITITs are not considered suggestable
Makes no sense to suggest `where impl Future<Output = ()>: Send`, for example.
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notriddle:notriddle/rustdoc-search-stop-doing-demerits, r=GuillaumeGomez
rustdoc: simplify JS search routine by not messing with lev distance
Since the sorting function accounts for an `index` field, there's not much reason to also be applying changes to the levenshtein distance. Instead, we can just not treat `lev` as a filter if there's already a non-sentinel value for `index`.
<details>
This change gives slightly more weight to the index and path part, as search criteria, than it used to. This changes some of the test cases, but not in any obviously-"worse" way, and, in particular, substring matches are a bigger deal than levenshtein distances (we're assuming that a typo is less likely than someone just not typing the entire name).
The biggest change is the addition of a `path_lev` field to result items. It's always zero if the search query has no parent path part and for type queries, making the check in the `sortResults` function a no-op. When it's present, it is used to implement different precedence for the parent path and the tail.
Consider the query `hashset::insert`, a test case [that already exists and can be found here](https://github.com/rust-lang/rust/blob/5c6a1681a9a7b815febdd9de2f840da338984e68/src/test/rustdoc-js-std/path-ordering.js). We want the ordering shown in the test case:
```
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_with' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_owned' },
{ 'path': 'std::collections::hash_map::HashMap', 'name': 'insert' },
```
We do not want this ordering, which is the ordering that would occur if substring position took priority over `path_lev`:
```
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'insert' },
{ 'path': 'std::collections::hash_map::HashMap', 'name': 'insert' }, // BAD
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_with' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_owned' },
```
We also do not want `HashSet::iter` to appear before `HashMap::insert`, which is what would happen if `path_lev` took priority over the appearance of any substring match. This is why the `sortResults` function has `path_lev` sandwiched between a `index < 0` check and a `index` comparison check:
```
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_with' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'get_or_insert_owned' },
{ 'path': 'std::collections::hash_set::HashSet', 'name': 'iter' }, // BAD
{ 'path': 'std::collections::hash_map::HashMap', 'name': 'insert' },
```
The old code implemented a similar feature by manipulating the `lev` member based on whether a substring match was found and averaging in the path distance (`item.lev = name_lev + path_lev / 10`), so the path lev wound up acting like a tie breaker, but it gives slightly different results for `Vec::new`, [changing the test case](https://github.com/rust-lang/rust/pull/105796/files#diff-b346e2ef72a407915f438063c8c2c04f7a621df98923d441b41c0312211a5b21) because of the slight changes to ordering priority.
</details>
Based on https://github.com/rust-lang/rust/pull/103710#issuecomment-1296894296
Previews:
* https://notriddle.com/notriddle-rustdoc-demos/rustdoc-search-stop-doing-demerits/std/index.html
* https://notriddle.com/notriddle-rustdoc-demos/rustdoc-search-stop-doing-demerits-compiler/index.html
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Nilstrieb:back-to-being-clueless-whether-it-really-is-a-literal, r=compiler-errors
Revert "Improve heuristics whether `format_args` string is a source literal"
This reverts commit e6c02aad9345925cfed74f86b414c4d0715d381b (from #106195).
Keeps the code improvements from the PR and the test (as a known-bug).
Works around #106408 while a proper fix is discussed more thoroughly in #106505, as proposed by `@tmandry.`
Reopens #106191
r? compiler-errors
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This reverts commit e6c02aad9345925cfed74f86b414c4d0715d381b.
Keeps the code improvements from the PR and the test (as a known-bug).
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This extends the special case with checkbox settings to also cover radios.
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This prevents some strange blur-event-related bugs with the "?" command
by ensuring that the focus remains in the same spot when the settings
area closes.
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Do not filter substs in `remap_generic_params_to_declaration_params`.
The relevant filtering should have been performed by borrowck.
Fixes https://github.com/rust-lang/rust/issues/105826
r? types
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Rollup of 7 pull requests
Successful merges:
- #106244 (Improve Markdown styling in README)
- #106747 (Add 'static lifetime suggestion when GAT implied 'static requirement from HRTB)
- #106873 (dont randomly use `_` to print out const generic arguments)
- #106992 (Remove unused `#![feature(box_syntax)]` in `alloc`)
- #106995 (bump failing assembly & codegen tests from LLVM 14 to LLVM 15)
- #106996 (rustdoc: instead of `.setting-name { width: 100% }`, use default div CSS)
- #106997 (Add heapsort fallback in `select_nth_unstable`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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r=GuillaumeGomez
rustdoc: instead of `.setting-name { width: 100% }`, use default div CSS
This has no discernible change in appearance.
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bump failing assembly & codegen tests from LLVM 14 to LLVM 15
These tests need LLVM 15.
Found by ```@Robert-Cunningham``` in https://github.com/rust-lang/rust/pull/100601#issuecomment-1385400008
Passed tests at 006506e93fc80318ebfd7939fe1fd4dc19ecd8cb in https://github.com/rust-lang/rust/actions/runs/3942442730/jobs/6746104740.
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dont randomly use `_` to print out const generic arguments
const generics seem to get printed out as `_` for no reason a lot of the time, as someone who spends a lot of time with const generics this has gotten :sparkles: very annoying :sparkles:. Latest example would be #106423 where the ICE messaged formatted a `ty::Const` containing no infer vars, as `_`.
For some reason printing of the const argument on arrays was custom instead of using the existing logic for printing `ty::Const`. Additionally the existing logic for printing `ty::Const` would print out `_` for anon consts that are in a separate crate leading to weird diagnostics (see second commit). There ought to be less cases of consts randomly getting printed as `_` hiding valuable info now.
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Add 'static lifetime suggestion when GAT implied 'static requirement from HRTB
Fix for issue #105507
The problem:
When generic associated types (GATs) are from higher-ranked trait bounds (HRTB), they are implied 'static requirement (see
[Implied 'static requirement from higher-ranked trait bounds](https://blog.rust-lang.org/2022/10/28/gats-stabilization.html#implied-static-requirement-from-higher-ranked-trait-bounds) for more details). If the user did not explicitly specify the `'static` lifetime when using the GAT, the current error message will only point out the type `does not live long enough` where the type is used, but not where the GAT is specified and how to fix the problem.
The solution:
Add notes at the span where the problematic GATs are specified and suggestions of how to fix the problem by adding `'static` lifetime at the right spans.
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rustdoc: Fix glob import inlining
Filter away names that are not actually imported by the glob, e.g. because they are shadowed by something else.
Fixes the issue found in https://github.com/rust-lang/rust/pull/94857#issuecomment-1382912356.
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Rollup of 7 pull requests
Successful merges:
- #104505 (Remove double spaces after dots in comments)
- #106784 (prevent E0512 from emitting [type error] by checking the references_error)
- #106834 (new trait solver: only consider goal changed if response is not identity)
- #106889 (Mention the lack of `windows_mut` in `windows`)
- #106963 (Use `scope_expr_id` from `ProbeCtxt`)
- #106970 (Switch to `EarlyBinder` for `item_bounds` query)
- #106980 (Hide `_use_mk_alias_ty_instead` in `<AliasTy as Debug>::fmt`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Hide `_use_mk_alias_ty_instead` in `<AliasTy as Debug>::fmt`
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prevent E0512 from emitting [type error] by checking the references_error
but still emit E0512
this will fix #106695
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