Revert "Rollup merge of #97346 - JohnTitor:remove-back-compat-hacks, …
…r=oli-obk"
This reverts commit c703d11dcc, reversing
changes made to 64eb9ab869.
it didn't apply cleanly, so now it works the same for RPIT and for TAIT instead of just working for RPIT, but we should keep those in sync anyway. It also exposed a TAIT bug (see the feature gated test that now ICEs).
r? `@pnkfelix`
fixes#99536
Don't derive `PartialEq::ne`.
Currently we skip deriving `PartialEq::ne` for C-like (fieldless) enums
and empty structs, thus reyling on the default `ne`. This behaviour is
unnecessarily conservative, because the `PartialEq` docs say this:
> Implementations must ensure that eq and ne are consistent with each other:
>
> `a != b` if and only if `!(a == b)` (ensured by the default
> implementation).
This means that the default implementation (`!(a == b)`) is always good
enough. So this commit changes things such that `ne` is never derived.
The motivation for this change is that not deriving `ne` reduces compile
times and binary sizes.
Observable behaviour may change if a user has defined a type `A` with an
inconsistent `PartialEq` and then defines a type `B` that contains an
`A` and also derives `PartialEq`. Such code is already buggy and
preserving bug-for-bug compatibility isn't necessary.
Two side-effects of the change:
- There is only one error message produced for types where `PartialEq`
cannot be derived, instead of two.
- For coverage reports, some warnings about generated `ne` methods not
being executed have disappeared.
Both side-effects seem fine, and possibly preferable.
Rollup of 9 pull requests
Successful merges:
- #97962 (Make must_not_suspend lint see through references when drop tracking is enabled)
- #99966 (avoid assertion failures in try_to_scalar_int)
- #100637 (Improving Fuchsia rustc support documentation)
- #100643 (Point at a type parameter shadowing another type)
- #100651 (Migrations for rustc_expand transcribe.rs)
- #100669 (Attribute cleanups)
- #100670 (Fix documentation of rustc_parse::parser::Parser::parse_stmt_without_recovery)
- #100674 (Migrate lint reports in typeck::check_unused to LintDiagnostic)
- #100688 (`ty::Error` does not match other types for region constraints)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Attempt to load all the required sync functions and fail if any one of them fails.
This reintroduces a macro for optional loading of functions but keeps it separate from the fallback macro rather than having that do two different jobs.
Migrate lint reports in typeck::check_unused to LintDiagnostic
In this PR, I migrate two lint reports in `typeck::check_unused` by `LintDiagnostic`, all of which is about extern crates.
```@rustbot``` label +A-translation
r? rust-lang/diagnostics
Fix documentation of rustc_parse::parser::Parser::parse_stmt_without_recovery
Something seems to have gotten out of sync during the creation of #81177, where both the argument and comment were introduced.
Migrations for rustc_expand transcribe.rs
This PR includes some migrations to the new diagnostics API for the `rustc_expand` module.
r? ```@davidtwco```
Improving Fuchsia rustc support documentation
* Adjusting `package/meta/package` to fit current schema
* Adding repository server step
* Adjusting step to give default repository
* Adding "recreate" step for easier step following
avoid assertion failures in try_to_scalar_int
Given that this is called `try_to_scalar_int`, we probably shouldn't `assert_int` here. Similarly `try_to_bits` also doesn't `assert!` that the size is correct.
Also add some `track_caller` for debugging, while we are at it.
r? ```@oli-obk```
Make must_not_suspend lint see through references when drop tracking is enabled
See #97333.
With drop tracking enabled, sometimes values that were previously linted are now considered dropped and not linted. This change makes must_not_suspend traverse through references to still catch these values.
Unfortunately, this leads to duplicate warnings in some cases (e.g. [dedup.rs](9a74608543/src/test/ui/lint/must_not_suspend/dedup.rs (L4))), so we only use the new behavior when drop tracking is enabled.
cc ``@guswynn``
Update cargo
3 commits in efd4ca3dc0b89929dc8c5f5c023d25978d76cb61..9809f8ff33c2b998919fd0432c626f0f7323697a
2022-08-12 01:28:28 +0000 to 2022-08-16 22:10:06 +0000
- Improve error message for an array value in the manifest (rust-lang/cargo#10944)
- Fix file locking being not supported on Android raising an error (rust-lang/cargo#10975)
- Bump to 0.66.0, update changelog (rust-lang/cargo#10983)
Update books
## nomicon
2 commits in 8d1e4dccf71114ff56f328f671f2026d8e6b62a2..8e6aa3448515a0654e347b5e2510f1d4bc4d5a64
2022-07-18 18:12:35 -0400 to 2022-08-15 15:36:13 -0700
- Update the `repr(transparent)` section to reflect the current state (rust-lang/nomicon#376)
- [typo] typo on limits of lifetime chapter (rust-lang/nomicon#377)
## reference
5 commits in f3d3953bf3b158d596c96d55ce5366f9f3f972e9..e647eb102890e8927f488bea12672b079eff8d9d
2022-08-01 17:17:37 -0700 to 2022-08-16 11:35:27 -0700
- #[non_exhaustive] on variant blocks cross-crate as casts (rust-lang/reference#1249)
- Revert let chains reference docs (rust-lang/reference#1251)
- Update subtyping.md (rust-lang/reference#1240)
- a fix about .await (rust-lang/reference#1245)
- Be less specific about the representation of `+bundle` (rust-lang/reference#1246)
## book
2 commits in 36383b4da21dbd0a0781473bc8ad7ef0ed1b6751..42ca0ef484fcc8437a0682cee23abe4b7c407d52
2022-07-19 21:03:20 -0400 to 2022-08-12 21:52:02 -0400
- Missing period at end of sentence
- Fix grammar in ch06-02
## rust-by-example
8 commits in ee342dc91e1ba1bb1e1f1318f84bbe3bfac04798..03301f8ae55fa6f20f7ea152a517598e6db2cdb7
2022-07-27 11:06:36 -0300 to 2022-08-14 08:51:44 -0300
- Update print.md (rust-lang/rust-by-example#1597)
- in Meta, replace 'playpen' with 'playground' (rust-lang/rust-by-example#1596)
- Update doc comment to link to name field without compilation warning (rust-lang/rust-by-example#1595)
- add line numbers for playpen fixesrust-lang/rust-by-example#1593 (rust-lang/rust-by-example#1594)
- clarify that the map-reduce example relies on static data (rust-lang/rust-by-example#1592)
- Update flow_control.md (rust-lang/rust-by-example#1591)
- Remove duplicate line in the hello/print.md file (rust-lang/rust-by-example#1590)
- Make rust editable in chapter on defaults (rust-lang/rust-by-example#1589)
## rustc-dev-guide
15 commits in 04f3cf0bb2f5a6ee2bfc4b1a6a6cd8c11d1c5531..d3daa1f28e169087becbc5e2b49ac91ca0405a44
2022-07-31 07:46:57 +0200 to 2022-08-13 10:00:38 +0900
- Improve the "Diagnostic items" chapter (rust-lang/rustc-dev-guide#1427)
- date-check: crates-io
- fix/improve compiler-debugging
- Update src/compiler-debugging.md
- add gdb tips for symbol-mangling-version
- move references down to avoid clutter (rust-lang/rustc-dev-guide#1420)
- update date-check format on github issue (rust-lang/rustc-dev-guide#1416)
- Fix legend colors in dark mode
- Add color for downloaded nodes
- Add colors to diagram
- Add bootstrapping diagram
- date-check: rustc_codegen_ssa is still alive
- note is now too old to be relevant
- date-check: be more strict
- make date-check more lightweight (rust-lang/rustc-dev-guide#1394)
## edition-guide
3 commits in c55611dd6c58bdeb52423b5c52fd0f3c93615ba8..6038be9d37d7251c966b486154af621d1794d7af
2022-02-21 14:21:39 +0100 to 2022-08-15 08:12:42 -0700
- use title "The Rust Edition Guide" everywhere (rust-lang/edition-guide#280)
- "Creating a new project": add example using 'cargo new --edition YEAR' (rust-lang/edition-guide#279)
- fixesrust-lang/edition-guide#277: mention rust 1.0 release month and year (rust-lang/edition-guide#278)
Remove deferred sized checks (make them eager)
Improves diagnostics spans... this doesn't seem to be the case anymore:
```rust
// Some additional `Sized` obligations badly affect type inference.
// These obligations are added in a later stage of typeck.
pub(super) deferred_sized_obligations:
RefCell<Vec<(Ty<'tcx>, Span, traits::ObligationCauseCode<'tcx>)>>,
```
Migrate emoji identifier diagnostics to `SessionDiagnostic` in rustc_interface
* Migrate emoji identifier diagnostics to `interface_ferris_identifier` and `interface_emoji_identifier`.
This is my first PR! I'm learning how to migrate these diagnostics. Thanks in advance.
r? rust-lang/diagnostics
