Don't pass `--sysroot` twice if SYSROOT is set
This is useful for rust-lang/rust to allow setting a sysroot that's *only* for build scripts, different from the regular sysroot passed in RUSTFLAGS (since cargo doesn't apply RUSTFLAGS to build scripts or proc-macros).
That said, the exact motivation is not particularly important: this fixes a regression from
5907e9155e (r1060215684).
Note that only RUSTFLAGS is tested in the new integration test; passing --sysroot through `clippy-driver` never worked as far as I can tell, and no one is using it, so I didn't fix it here.
Helps with https://github.com/rust-lang/rust/pull/106394.
---
changelog: other: `SYSROOT` and `--sysroot` can now be set at the same time
[#10149](https://github.com/rust-lang/rust-clippy/pull/10149)
<!-- changelog_checked -->
Whne SYSROOT is defined, clippy-driver will insert a --sysroot argument
when calling rustc. However, when a sysroot argument is already defined,
e.g. through RUSTFLAGS=--sysroot=... the `cargo clippy` call would
error. This tests that the sysroot argument is only passed once and that
SYSROOT is ignored in this case.
This is useful for rust-lang/rust to allow setting a sysroot that's
*only* for build scripts, different from the regular sysroot passed in
RUSTFLAGS (since cargo doesn't apply RUSTFLAGS to build scripts or
proc-macros).
That said, the exact motivation is not particularly important: this
fixes a regression from
5907e9155e (r1060215684).
Note that only RUSTFLAGS is tested in the new integration test; passing
--sysroot through `clippy-driver` never worked as far as I can tell, and
no one is using it, so I didn't fix it here.
The test cases src/test/mir-opt/building/custom/consts.rs and
src/test/mir-opt/const_prop/mutable_variable_no_prop.rs are
currently failing on big-endian platforms as the binary encoding
of some constants is hard-coded in the MIR test files. Fix this
by choosing constant values that have the same encoding on big-
and little-endian platforms.
The test case src/test/mir-opt/issues/issue_75439.rs is failing
as well, but since the purpose of the test is to validate handling
of big-endian integer encodings on a little-endian platform, it does
not make much sense to run it on big-endian platforms in the first
place - we can just ignore it there.
Fixed part of https://github.com/rust-lang/rust/issues/105383.
Allow implementing `Hash` with derived `PartialEq` (`derive_hash_xor_eq`
This is a common pattern and is totally allowed by the `Hash` trait.
Fixes#2627
changelog: Move: Renamed `derive_hash_xor_eq` to [`derived_hash_with_manual_eq`]
[#10184](https://github.com/rust-lang/rust-clippy/pull/10184)
changelog: Enhancement: [`derived_hash_with_manual_eq`]: Now allows `#[derive(PartialEq)]` with custom `Hash` implementations
[#10184](https://github.com/rust-lang/rust-clippy/pull/10184)
<!-- changelog_checked -->
remove unreachable error code `E0490`
AFAIK, the untested and undocumented error code `E0490` is now unreachable, it was from the days of the original borrow checker.
cc ``@GuillaumeGomez`` #61137
Handle inference variables in `CollectAllMismatches` correctly
1. Fix#106240
2. Treat int/float type variables correctly (see `src/test/ui/iterators/invalid-iterator-chain-with-int-infer.rs`), so we can point out things like "`Iterator::Item` changed to `{integer}` here"
Harden the pre-tyctxt query system against accidental recomputation
While the current compiler has no issues where we `take` and then compute the query again, in https://github.com/rust-lang/rust/pull/105462 I accidentally introduced such a case.
I also took the opportunity to remove `peek_mut`, which is only ever used for `global_tcx` to then invoke `enter`. I added an `enter` method directly on the query.
trim paths in `suspicious_to_owned`
This continues my path trimming spree. I'm not going to add yet another changelog entry, we should have one "trim paths in some applicable lints" entry instead.
---
changelog: none
Rollup of 10 pull requests
Successful merges:
- #106167 (Fix invalid syntax and incomplete suggestion in impl Trait parameter type suggestions for E0311)
- #106309 (Prefer non-`[type error]` candidates during selection)
- #106532 (Allow codegen to unsize `dyn*` to `dyn`)
- #106596 (Hide more of long types in E0271)
- #106638 (std tests: use __OsLocalKeyInner from realstd)
- #106676 (Test that we cannot use trait impl methods arguments as defining uses)
- #106702 (Conserve cause of `ImplDerivedObligation` in E0599)
- #106732 (rustc_llvm: replace llvm::makeArrayRef with ArrayRef constructors.)
- #106733 (Revert "warn newer available version of the x tool")
- #106748 (Clean up `OnUnimplementedFormatString::verify`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Remove `<dyn AstConv<'tcx>>::fun(c, ...)` calls in favour of `c.astconv().fun(...)`
This removes the need for <>><><><<>> dances and makes the code a bit nicer.
Not sure if `astconv` is the best name though, maybe someone has a better idea?
Move autoderef to `rustc_hir_analysis`
Not sure if this is a change we actually want, but autoderef really is only (functionally) used by `rustc_hir_analysis` and `rustc_hir_typeck`, so it probably should live there.
Instead, implement a separate autoderef helper in `TypeErrCtxt` for the one use-case that goes against the ordering of the crate graph..
Migrate mir_build diagnostics 2 of 3
The first three commits are fairly boring, however I've made some changes to the output of the match checking diagnostics.
Stabilize `::{core,std}::pin::pin!`
As discussed [over here](https://github.com/rust-lang/rust/issues/93178#issuecomment-1295843548), it looks like a decent time to stabilize the `pin!` macro.
### Public API
```rust
// in module `core::pin`
/// API: `fn pin<T>($value: T) -> Pin<&'local mut T>`
pub macro pin($value:expr $(,)?) {
…
}
```
- Tracking issue: #93178
(now all this needs is an FCP by the proper team?)
doc: rewrite doc for signed int::{carrying_add,borrowing_sub}
Reword the documentation for bigint helper methods, signed `int::{carrying_add,borrowing_sub}` (#85532).
This change is a follow-up to #101889, which was for the unsigned methods.
