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Along with `TyCtx::env_var` helper. These can be used to track
environment variable accesses in the query system.
Since `TyCtx::env_var_os` uses `OsStr`, this commit also adds the
necessary trait implementations for that to work.
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Rollup of 5 pull requests
Successful merges:
- #138283 (Enforce type of const param correctly in MIR typeck)
- #138439 (feat: check ARG_MAX on Unix platforms)
- #138502 (resolve: Avoid some unstable iteration)
- #138514 (Remove fake borrows of refs that are converted into non-refs in `MakeByMoveBody`)
- #138524 (Mark myself as unavailable for reviews temporarily)
r? `@ghost`
`@rustbot` modify labels: rollup
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r=onur-ozkan,jieyouxu
Use `RUSTC_LINT_FLAGS` more
An alternative to the failed #138084.
Fixes #138106.
r? ````@jieyouxu````
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Convert `ShardedHashMap` to use `hashbrown::HashTable`
The `hash_raw_entry` feature (#56167) has finished fcp-close, so the compiler
should stop using it to allow its removal. Several `Sharded` maps were
using raw entries to avoid re-hashing between shard and map lookup, and
we can do that with `hashbrown::HashTable` instead.
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Add `#[define_opaques]` attribute and require it for all type-alias-impl-trait sites that register a hidden type
Instead of relying on the signature of items to decide whether they are constraining an opaque type, the opaque types that the item constrains must be explicitly listed.
A previous version of this PR used an actual attribute, but had to keep the resolved `DefId`s in a side table.
Now we just lower to fields in the AST that have no surface syntax, instead a builtin attribute macro fills in those fields where applicable.
Note that for convenience referencing opaque types in associated types from associated methods on the same impl will not require an attribute. If that causes problems `#[defines()]` can be used to overwrite the default of searching for opaques in the signature.
One wart of this design is that closures and static items do not have generics. So since I stored the opaques in the generics of functions, consts and methods, I would need to add a custom field to closures and statics to track this information. During a T-types discussion we decided to just not do this for now.
fixes #131298
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And fix the new errors in the handful of crates that didn't have a
`#![warn(unreachable_pub)]`.
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The `hash_raw_entry` feature has finished fcp-close, so the compiler
should stop using it to allow its removal. Several `Sharded` maps were
using raw entries to avoid re-hashing between shard and map lookup, and
we can do that with `hashbrown::HashTable` instead.
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Revert <https://github.com/rust-lang/rust/pull/138084> to buy time to
consider options that avoids breaking downstream usages of cargo on
distributed `rustc-src` artifacts, where such cargo invocations fail due
to inability to inherit `lints` from workspace root manifest's
`workspace.lints` (this is only valid for the source rust-lang/rust
workspace, but not really the distributed `rustc-src` artifacts).
This breakage was reported in
<https://github.com/rust-lang/rust/issues/138304>.
This reverts commit 48caf81484b50dca5a5cebb614899a3df81ca898, reversing
changes made to c6662879b27f5161e95f39395e3c9513a7b97028.
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Use workspace lints for crates in `compiler/`
This is nicer and hopefully less error prone than specifying lints via bootstrap.
r? ``@jieyouxu``
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r=compiler-errors
compiler: Use `size_of` from the prelude instead of imported
Use `std::mem::{size_of, size_of_val, align_of, align_of_val}` from the prelude instead of importing or qualifying them. Apply this change across the compiler.
These functions were added to all preludes in Rust 1.80.
r? ``@compiler-errors``
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And fix the new errors in the handful of crates that didn't have a
`#![warn(unreachable_pub)]`.
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Use `std::mem::{size_of, size_of_val, align_of, align_of_val}` from the
prelude instead of importing or qualifying them.
These functions were added to all preludes in Rust 1.80.
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r=lcnr
Ensure that negative auto impls are always applicable
r? lcnr (or reassign if you dont want to review)
https://github.com/rust-lang/rust/issues/68318#issuecomment-2689265030
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Rollup of 15 pull requests
Successful merges:
- #137829 (Stabilize [T]::split_off... methods)
- #137850 (Stabilize `box_uninit_write`)
- #137912 (Do not recover missing lifetime with random in-scope lifetime)
- #137913 (Allow struct field default values to reference struct's generics)
- #137923 (Simplify `<Postorder as Iterator>::size_hint`)
- #137949 (Update MSVC INSTALL.md instructions to recommend VS 2022 + recent Windows 10/11 SDK)
- #137963 (Add ``dyn`` keyword to `E0373` examples)
- #137975 (Remove unused `PpMode::needs_hir`)
- #137981 (rustdoc search: increase strictness of typechecking)
- #137986 (Fix some typos)
- #137991 (Add `avr-none` to SUMMARY.md and platform-support.md)
- #137993 (Remove obsolete comment from DeduceReadOnly)
- #137996 (Revert "compiler/rustc_data_structures/src/sync/worker_local.rs: delete "unsafe impl Sync"")
- #138019 (Pretty-print `#[deprecated]` attribute in HIR.)
- #138026 (Make CrateItem::body() function return an option)
r? `@ghost`
`@rustbot` modify labels: rollup
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"unsafe impl Sync""
This reverts commit 02406903b0c26440428580a4bbaf30da973c5b23.
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Get rid of the `Captures` hack
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With the removal of `cfg(parallel_compiler)`, these are always shared
references and `std::sync::OnceLock`.
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With the removal of `cfg(parallel_compiler)`, these parameters are never
considered unused.
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Optimize empty provenance range checks.
Currently it gets the pointers in the range and checks if the result is empty, but it can be done faster if you combine those two steps.
r? `@oli-obk`
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Fix UB in ThinVec::flat_map_in_place
`thin_vec.as_ptr()` goes through the `Deref` impl of `ThinVec`, which will not allow access to any memory as we did call `set_len(0)` first.
Found in the process of investigating https://github.com/rust-lang/rust/issues/135870.
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Currently it gets the pointers in the range and checks if the result is
empty, but it can be done faster if you combine those two steps.
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thin_vec.as_ptr() goes through the Deref impl of ThinVec, which will
not allow access to any memory as we did call set_len(0) first.
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Change interners to start preallocated with an increased capacity
Inspired by https://github.com/rust-lang/rust/issues/137005.
Added a `with_capacity` function to `InternedSet`. Changed the `CtxtInterners` to start with `InternedSets` preallocated with a capacity.
This *does* increase memory usage at very slightly(by ~1 MB at the start), altough that increase quickly disaperars for larger crates(since they require such capacity anyway).
A local perf run indicates this improves compiletimes for small crates(like `ripgrep`), without a negative effect on larger ones.
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Allow `IndexSlice` to be indexed by ranges.
This comes with some annoyances as the index type can no longer inferred from indexing expressions. The biggest offender for this is `IndexVec::from_fn_n(|idx| ..., n)` where the index type won't be inferred from the call site or any index expressions inside the closure.
My main use case for this is mapping a `Place` to `Range<Idx>` for value tracking where the range represents all the values the place contains.
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Master bootstrap update
https://forge.rust-lang.org/release/process.html#master-bootstrap-update-tuesday
r? `@Mark-Simulacrum`
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This adds panicking Hash impls for several resolver types that don't
actually satisfy this condition. It's not obvious to me that
rustc_resolve actually upholds the Interned guarantees but fixing that
seems pretty hard (the structures have at minimum some interior
mutability, so it's not really recursively hashable in place...).
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with rust-analyzer
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Sync"
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It seems it is left-over after some refactoring
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parking_lot::RwLock doesn't have "impl Clone", so we should not have, either
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called, so let's remove them
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