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Implement RFC3695 Allow boolean literals as cfg predicates
This PR implements https://github.com/rust-lang/rfcs/pull/3695: allow boolean literals as cfg predicates, i.e. `cfg(true)` and `cfg(false)`.
r? `@nnethercote` *(or anyone with parser knowledge)*
cc `@clubby789`
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remove blank issue template
r? `@Noratrieb`
So there are currently two blank issue templates. One called "Blank Issue" and one called "Blank issue". Wildly different, of course. It seems that one is auto generated by GitHub, while the other one has an explicit template for it. This removes the explicit one so there's only one "Blank [iI]ssue" in the list. Unfortunately, the only way to test if it works is merging this and finding out, but it seems obvious that it would work.
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Disable jump threading `UnOp::Not` for non-bool
Fix #131195, where jumpthreading was optimizing `!a == b` into `a != b` for non-bool, where this is definitely not true.
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Merge `glb` and `lub` modules
Tons of code is duplicated across them, and it's easy to factor that out.
r? `@lcnr`
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Rollup of 7 pull requests
Successful merges:
- #131024 (Don't give method suggestions when method probe fails due to bad implementation of `Deref`)
- #131112 (TransmuteFrom: Gracefully handle unnormalized types and normalization errors)
- #131176 (.gitignore files for nix)
- #131183 (Refactoring to `OpaqueTyOrigin`)
- #131187 (Avoid ICE in coverage builds with bad `#[coverage(..)]` attributes)
- #131192 (Handle `rustc_query_impl` cases of `rustc::potential_query_instability` lint)
- #131197 (Avoid emptiness check in `PeekMut::pop`)
r? `@ghost`
`@rustbot` modify labels: rollup
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It's no longer necessary now that the `glb` and `lub` modules have been
merged.
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Most of the code in these two modules is duplicated in the other module.
This commit eliminates the duplication by replacing them with a new
module `lattice_op`. The new `LatticeOpKind` enum is used to distinguish
between glb and lub in the few places where the behaviour differs.
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Avoid emptiness check in `PeekMut::pop`
This PR avoids an unnecessary emptiness check in `PeekMut::pop` by replacing `Option::unwrap` with `Option::unwrap_unchecked`.
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ismailarilik:handle-potential-query-instability-lint-for-rustc-query-impl, r=compiler-errors
Handle `rustc_query_impl` cases of `rustc::potential_query_instability` lint
This PR removes `#![allow(rustc::potential_query_instability)]` line from [`compiler/rustc_query_impl/src/lib.rs`](https://github.com/rust-lang/rust/blob/master/compiler/rustc_query_impl/src/lib.rs#L5) <s>and converts `FxHash{Map,Set}` types into `FxIndex{Map,Set}` to suppress lint errors</s> (was not necessary for this PR).
A somewhat tracking issue: https://github.com/rust-lang/rust/issues/84447
r? ``@compiler-errors``
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Avoid ICE in coverage builds with bad `#[coverage(..)]` attributes
This code can sometimes witness malformed coverage attributes in builds that are going to fail, so use `span_delayed_bug` to avoid an inappropriate ICE in that case.
Fixes #127880.
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Refactoring to `OpaqueTyOrigin`
Pulled out of a larger PR that uses these changes to do cross-crate encoding of opaque origin, so we can use them for edition 2024 migrations. These changes should be self-explanatory on their own, tho 😄
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.gitignore files for nix
This adds support for direnv and nix flakes / nix shell. I'm not sure if we should have a working nix configuration though.
r? ``@noratrieb``
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TransmuteFrom: Gracefully handle unnormalized types and normalization errors
~~Refactor to share code between `TransmuteFrom`'s trait selection and error reporting code paths. Additionally normalizes the source and destination types, and gracefully handles normalization errors.~~
Fixes #130413
r? `@compiler-errors`
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Don't give method suggestions when method probe fails due to bad implementation of `Deref`
If we have a bad `Deref` impl, we used to bail with `MethodError::NoMatch`, which makes the error reporting code think that there was no applicable method (and thus try to suggest importing something, even if it's in scope).
Suppress this error, which fixes #131003.
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ismailarilik:handle_potential_query_instability_lint_for_rustc_metadata, r=compiler-errors
Handle `rustc_metadata` cases of `rustc::potential_query_instability` lint
This PR removes `#![allow(rustc::potential_query_instability)]` line from [`compiler/rustc_metadata/src/lib.rs`](https://github.com/rust-lang/rust/blob/master/compiler/rustc_metadata/src/lib.rs#L3) and converts `FxHash{Map,Set}` types into `FxIndex{Map,Set}` to suppress lint errors.
A somewhat tracking issue: https://github.com/rust-lang/rust/issues/84447
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Clippy subtree update
r? `@Manishearth`
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clippy-subtree-update
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Rollup of 3 pull requests
Successful merges:
- #130419 (Streamline `HirCollector`)
- #131163 (Add `get_line` confusable to `Stdin::read_line()`)
- #131173 (Fix `target_abi` in SOLID targets)
r? `@ghost`
`@rustbot` modify labels: rollup
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Rustup
r? `@ghost`
changelog: none
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Fix `target_abi` in SOLID targets
The `armv7a-kmc-solid_asp3-eabi` and `armv7a-kmc-solid_asp3-eabihf` targets clearly have the ABI in their name, so it should also be exposed in Rust's `target_abi` cfg variable.
CC target maintainer `@kawadakk.`
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Add `get_line` confusable to `Stdin::read_line()`
This pull request resolves https://github.com/rust-lang/rust/issues/131091
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I've updated tests for `tests/ui/attributes/rustc_confusables_std_cases` in order to verify this change is working as intended.
Before I submitted this pull request, I had a pull request to my local fork. If you're interested in seeing the conversation on that PR, go to https://github.com/JakenHerman/rust/pull/1.
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**Testing**:
Run `./x.py test tests/ui/attributes/rustc_confusables_std_cases.rs`
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Streamline `HirCollector`
r? `@GuillaumeGomez`
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This code can sometimes witness malformed coverage attributes in builds that
are going to fail, so use `span_delayed_bug` to avoid an inappropriate ICE in
that case.
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impl `Default` for `HashMap`/`HashSet` iterators that don't already have it
This is a follow-up to #128261 that isn't included in that PR because it depends on:
* [x] rust-lang/hashbrown#542 (`Default`)
* [x] `hashbrown` release containing above
It also wasn't included in #128261 initially and should have its own FCP, since these are also insta-stable.
Changes added:
* `Default for hash_map::{Iter, IterMut, IntoIter, IntoKeys, IntoValues, Keys, Values, ValuesMut}`
* `Default for hash_set::{Iter, IntoIter}`
Changes that were added before FCP, but are being deferred to later:
* `Clone for hash_map::{IntoIter, IntoKeys, IntoValues} where K: Clone, V: Clone`
* `Clone for hash_set::IntoIter where K: Clone`
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Rollup of 3 pull requests
Successful merges:
- #126930 (Add unstable support for outputting file checksums for use in cargo)
- #130725 (Parser: better error messages for ``@`` in struct patterns)
- #131166 (Fix `target_vendor` for `aarch64-nintendo-switch-freestanding`)
r? `@ghost`
`@rustbot` modify labels: rollup
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Fix `target_vendor` for `aarch64-nintendo-switch-freestanding`
Previously set to `target_vendor = "unknown"`, but Nintendo is clearly the vendor of the Switch, and is also reflected in the target name itself.
CC target maintainers `@leo60228` and `@jam1garner`
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Parser: better error messages for `@` in struct patterns
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Add unstable support for outputting file checksums for use in cargo
Adds an unstable option that appends file checksums and expected lengths to the end of the dep-info file such that `cargo` can read and use these values as an alternative to file mtimes.
This PR powers the changes made in this cargo PR https://github.com/rust-lang/cargo/pull/14137
Here's the tracking issue for the cargo feature https://github.com/rust-lang/cargo/issues/14136.
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Add tests for addition of `#[rustc_confusables("get_line")]`
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std: make `thread::current` available in all `thread_local!` destructors
... and thereby allow the panic runtime to always print the right thread name.
This works by modifying the TLS destructor system to schedule a runtime cleanup function after all other TLS destructors registered by `std` have run. Unfortunately, this doesn't affect foreign TLS destructors, `thread::current` will still panic there.
Additionally, the thread ID returned by `current_id` will now always be available, even inside the global allocator, and will not change during the lifetime of one thread (this was previously the case with key-based TLS).
The mechanisms I added for this (`local_pointer` and `thread_cleanup`) will also allow finally fixing #111272 by moving the signal stack to a similar runtime-cleanup TLS variable.
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Update hashbrown to 0.15 and adjust some methods
This PR updates `hashbrown` to 0.15 in the standard library and adjust some methods as well as removing some as they no longer exists in Hashbrown it-self.
- `HashMap::get_many_mut` change API to return array-of-Option
- `HashMap::{replace_entry, replace_key}` are removed, FCP close [already finished](https://github.com/rust-lang/rust/issues/44286#issuecomment-2293825619)
- `HashSet::get_or_insert_owned` is removed as it no longer exists in hashbrown
Closes https://github.com/rust-lang/rust/issues/44286
r? `@Amanieu`
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