Support ADT types in type info reflection
Tracking issue: rust-lang/rust#146922 `#![feature(type_info)]`
This PR supports ADT types for feature `type_info` reflection.
(It's still a draft PR, with implementation in progress)
Note that this PR does not take SemVer into consideration (I left a FIXME comment). As discussed earlier ([comment](https://github.com/rust-lang/rust/pull/146923#discussion_r2372249477)), this requires further discussion. However, I hope we could get an initial implementation to land first, so we can start playing with it.
### Progress / Checklist
- [x] Struct support.
- [x] Enum
- [x] Union
- [x] Generics
- [ ] ~Methods~ Implemented and to be implemented in other PRs
- [ ] ~Traits~ Implemented and to be implemented in other PRs
- [x] Rebasing PR to `main` branch
~~(It's currently based on PR rust-lang/rust#151123, so here's an extra commit)~~
- [x] Cleanup and Rebase.
- [x] Fix field info for references. (see [comment](https://github.com/rust-lang/rust/pull/151142#discussion_r2777920512))
r? @oli-obk
borrowck: suggest `&mut *x` for pattern reborrows
Fixesrust-lang/rust#81059
r? @estebank as you should have some context here, but feel free to re-assign if you don't have time to review right now.
Update books
## rust-lang/book
1 commits in 39aeceaa3aeab845bc4517e7a44e48727d3b9dbe..05d114287b7d6f6c9253d5242540f00fbd6172ab
2026-02-03 15:19:04 UTC to 2026-02-03 15:19:04 UTC
- Temporarily remove the link to `Drop::drop` (rust-lang/book#4576)
## rust-lang/nomicon
1 commits in 050c002a360fa45b701ea34feed7a860dc8a41bf..b8f254a991b8b7e8f704527f0d4f343a4697dfa9
2026-01-29 12:15:01 UTC to 2026-01-29 12:15:01 UTC
- Fix deprecation warning for compare_and_swap in atomics.md (rust-lang/nomicon#519)
## rust-lang/reference
12 commits in 990819b86c22bbf538c0526f0287670f3dc1a67a..addd0602c819b6526b9cc97653b0fadca395528c
2026-02-04 14:35:59 UTC to 2026-01-26 18:02:14 UTC
- const-eval.const-expr.field: make paragraph more clear (rust-lang/reference#2157)
- make more clear what the link target is (rust-lang/reference#2156)
- Update two URLs (rust-lang/reference#2154)
- Add a chapter on divergence (rust-lang/reference#2067)
- Guarantee `repr(C)` union field offset (rust-lang/reference#2128)
- Reference updates for forbidding object lifetime changing pointer casts (rust-lang/reference#1951)
- Clarify only arrays undergo unsized coercion during dispatch (rust-lang/reference#2139)
- Split the textual chapter into separate char and str chapters (rust-lang/reference#2145)
- Document ppc inline asm support (rust-lang/reference#2056)
- Unwrap items, expressions, patterns, and types (rust-lang/reference#2141)
- undefined behavior: add missing plural in `undefined.misaligned.ptr` (rust-lang/reference#2146)
- inline-assembly: add a space to the `asm.abi-clobbers.many` example (rust-lang/reference#2144)
BikeshedGuaranteedNoDrop trait: add comments indicating that it can be observed on stable
Not sure if that's worth it, maybe this goes without saying for all these builtin traits?
style: remove unneeded trailing commas
Make format-like macro calls look similar to what `cargo fmt` does automatically - remove trailing commas. When removing a comma, I also inlined some variables for consistency and clarity.
I'm working on a [clippy lint](https://github.com/rust-lang/rust-clippy/pull/16530) to make this process automatic.
Move more query system code
Towards the goal of eliminating `rustc_query_system`, this commit moves some code from `rustc_query_system` to `rustc_middle` and `rustc_query_impl`, and from `rustc_middle` to `rustc_query_impl`.
r? @Zalathar
Clean up query macros for `cache_on_disk_if`
This PR aims to make the macros for dealing with `cache_on_disk_if` a bit easier to read and work with.
There should be no change to compiler behaviour.
Handle race when coloring nodes concurrently as both green and red
This fixes a race where a duplicate dep node gets written to the dep graph if a node was marked as green and promoted during execution, then marked as red after execution.
This can occur when a `no_hash` query A depends on a query B which cannot be forced so it was not colored when starting execution of query A. During the execution of query A it will execute query B and color it green. Before A finishes another thread tries to mark A green, this time succeeding as B is now green, and A gets promoted and written to metadata. Execution of A then finishes and because it's `no_hash` we assume the result changed and thus we color the node again, now as red and write it to metadata again. This doesn't happen with non-`no_hash` queries as they will be green if all their dependencies are green.
This changes the code coloring nodes red to also use `compare_exchange` to deal with this race ensuring that the coloring of nodes only happens once.
Fixesrust-lang/rust#150018Fixesrust-lang/rust#142778Fixesrust-lang/rust#141540
Rollup of 10 pull requests
Successful merges:
- rust-lang/rust#152364 (Port a lot of attributes to the new parser)
- rust-lang/rust#151954 (Add help message suggesting explicit reference cast for From/TryFrom)
- rust-lang/rust#152148 (Move `impl Interner for TyCtxt` to its own submodule)
- rust-lang/rust#152226 (Modernize diagnostic for indeterminate trait object lifetime bounds)
- rust-lang/rust#152351 (Remove `SubdiagMessage` in favour of the identical `DiagMessage`)
- rust-lang/rust#152417 (Move the needs-drop check for `arena_cache` queries out of macro code)
- rust-lang/rust#150688 (typeck: Make it clearer that `check_pat_lit` only handles literal patterns)
- rust-lang/rust#152293 (Format heterogeneous try blocks)
- rust-lang/rust#152355 (Update documentation of rustc_macros)
- rust-lang/rust#152396 (Uplift `Predicate::allow_normalization` to `rustc_type_ir`)
