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`ty::Binber::dummy` calls
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a `Span`
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Because certain regions cannot occur in them.
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Consider polarity in new solver
It's kinda ugly to have a polarity check in all of the builtin impls -- I guess I could consider the polarity at the top of assemble-builtin but that would require adding a polarity fn to `GoalKind`...
:shrug: putting this up just so i dont forget, since it's needed to bootstrap core during coherence (this alone does not allow core to bootstrap though, additional work is needed!)
r? ``@lcnr``
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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 :smiley:)
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bryangarza:refactor-trait-selection-error-reporting, r=compiler-errors
Break up long function in trait selection error reporting + clean up nearby code
- Move blocks of code into their own functions
- Replace a few function argument types with their type aliases
- Create "AppendConstMessage" enum to replace a nested `Option`.
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r=cjgillot,BoxyUwU
Don't create projection ty for const projection
Fixes #110549
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r=b-naber
Remove `find_map_relevant_impl`
Fixes #108895
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This patch creates an enum to replace a nested `Option`.
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- Move blocks of code into their own functions
- Replace a few function argument types with their type aliases
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Allow to feed a value in another query's cache and remove `WithOptConstParam`
I used it to remove `WithOptConstParam` queries, as an example.
The idea is that a query (here `typeck(function)`) can write into another query's cache (here `type_of(anon const)`). The dependency node for `type_of` would depend on all the current dependencies of `typeck`.
There is still an issue with cycles: if `type_of(anon const)` is accessed before `typeck(function)`, we will still have the usual cycle. The way around this issue is to `ensure` that `typeck(function)` is called before accessing `type_of(anon const)`.
When replayed, we may the following cases:
- `typeck` is green, in that case `type_of` is green too, and all is right;
- `type_of` is green, `typeck` may still be marked as red (it depends on strictly more things than `type_of`) -> we verify that the saved value and the re-computed value of `type_of` have the same hash;
- `type_of` is red, then `typeck` is red -> it's the caller responsibility to ensure `typeck` is recomputed *before* `type_of`.
As `anon consts` have their own `DefPathData`, it's not possible to have the def-id of the anon-const point to something outside the original function, but the general case may have to be resolved before using this device more broadly.
There is an open question about loading from the on-disk cache. If `typeck` is loaded from the on-disk cache, the side-effect does not happen. The regular `type_of` implementation can go and fetch the correct value from the decoded `typeck` results, and the dep-graph will check that the hashes match, but I'm not sure we want to rely on this behaviour.
I specifically allowed to feed the value to `type_of` from inside a call to `type_of`. In that case, the dep-graph will check that the fingerprints of both values match.
This implementation is still very sensitive to cycles, and requires that we call `typeck(function)` before `typeck(anon const)`. The reason is that `typeck(anon const)` calls `type_of(anon const)`, which calls `typeck(function)`, which feeds `type_of(anon const)`, and needs to build the MIR so needs `typeck(anon const)`. The latter call would not cycle, since `type_of(anon const)` has been set, but I'd rather not remove the cycle check.
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EarlyBinder; use this to simplify some EarlyBinder noise around explicit_item_bounds calls
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bound_explicit_item_bounds usages; remove bound_explicit_item_bounds query
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responses after
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small type system cleanup
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Add `rustc_fluent_macro` to decouple fluent from `rustc_macros`
Fluent, with all the icu4x it brings in, takes quite some time to compile. `fluent_messages!` is only needed in further downstream rustc crates, but is blocking more upstream crates like `rustc_index`. By splitting it out, we allow `rustc_macros` to be compiled earlier, which speeds up `x check compiler` by about 5 seconds (and even more after the needless dependency on `serde_json` is removed from `rustc_data_structures`).
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r=compiler-errors
Fix ICE for transmutability in candidate assembly
Don't skip transmutability check just because there may be generics in the ParamEnv.
Fixes #110467
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Switch to `EarlyBinder` for `collect_return_position_impl_trait_in_trait_tys`
Part of the work to finish https://github.com/rust-lang/rust/issues/105779.
This PR adds `EarlyBinder` to the return type of the `collect_return_position_impl_trait_in_trait_tys` query and removes `bound_return_position_impl_trait_in_trait_tys`.
r? `@lcnr`
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Don't skip transmutability check just because there may be generics in the
ParamEnv.
Fixes #110467
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collect_return_position_impl_trait_in_trait_tys query; remove bound_X version
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Fluent, with all the icu4x it brings in, takes quite some time to
compile. `fluent_messages!` is only needed in further downstream rustc
crates, but is blocking more upstream crates like `rustc_index`. By
splitting it out, we allow `rustc_macros` to be compiled earlier, which
speeds up `x check compiler` by about 5 seconds (and even more after the
needless dependency on `serde_json` is removed from
`rustc_data_structures`).
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* account
* achieved
* advising
* always
* ambiguous
* analysis
* annotations
* appropriate
* build
* candidates
* cascading
* category
* character
* clarification
* compound
* conceptually
* constituent
* consts
* convenience
* corresponds
* debruijn
* debug
* debugable
* debuggable
* deterministic
* discriminant
* display
* documentation
* doesn't
* ellipsis
* erroneous
* evaluability
* evaluate
* evaluation
* explicitly
* fallible
* fulfill
* getting
* has
* highlighting
* illustrative
* imported
* incompatible
* infringing
* initialized
* into
* intrinsic
* introduced
* javascript
* liveness
* metadata
* monomorphization
* nonexistent
* nontrivial
* obligation
* obligations
* offset
* opaque
* opportunities
* opt-in
* outlive
* overlapping
* paragraph
* parentheses
* poisson
* precisely
* predecessors
* predicates
* preexisting
* propagated
* really
* reentrant
* referent
* responsibility
* rustonomicon
* shortcircuit
* simplifiable
* simplifications
* specify
* stabilized
* structurally
* suggestibility
* translatable
* transmuting
* two
* unclosed
* uninhabited
* visibility
* volatile
* workaround
Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
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Various minor Idx-related tweaks
Nothing particularly exciting here, but a couple of things I noticed as I was looking for more index conversions to simplify.
cc https://github.com/rust-lang/compiler-team/issues/606
r? `@WaffleLapkin`
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fix clippy::toplevel_ref_arg and ::manual_map
r? ``@Nilstrieb``
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r=compiler-errors
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.
r? `@compiler-errors`
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Remove `remap_env_constness` in queries
This removes some of the complexities with const traits. #88119 used to be caused by this but was fixed by `param_env = param_env.without_const()`.
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Nothing particularly exciting here, but a couple of things I noticed as I was looking for more index conversions to simplify.
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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.
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remove redundant clones
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