Clean up and improve some docs
* compiler docs
* Don't format list as part of a code block
* Clean up some other formatting
* rustdoc book
* Update CommonMark spec version to latest (0.28 -> 0.29)
* Clean up some various wording and formatting
Doc formating consistency between slice sort and sort_unstable, and big O notation consistency
Updated documentation for slice sorting methods to be consistent between stable and unstable versions, which just ended up being minor formatting differences.
I also went through and updated any doc comments with big O notation to be consistent with #74010 by italicizing them rather than having them in a code block.
Avoid extraneous space between visibility kw and ident for statics
Today, given a static like `static mut FOO: usize = 1`, rustdoc would
emit `static mut FOO: usize = 1`, as it emits both the mutability kw
with a space and reserves a space after the mutability kw. This patch
fixes that misformatting.
This patch also adds some tests for emit of other statics, as I could
not find an existing test devoted to statics.
Fixing escaping to ensure generation of welformed json.
doc tests' json name have a filename in them. When json test output is asked for on windows currently produces invalid json.
Tracking issue for json test output: #49359
Implement TryFrom between NonZero types.
This will instantly be stable, as trait implementations for stable types and traits can not be `#[unstable]`.
Closes#77258.
@rustbot modify labels: +T-libs
Link to "Contributing to Rust" rather than "Getting Started".
Change to link to "Contributing to Rust" chapter of `rustc` Dev Guide, primarily on the basis that:
* The GitHub "first contribution" Issue "pop-up" says "Be sure to review the [contributing guidelines] and [code of conduct]" and links to this file.
* The "Bug Report" section _seems_ to restrict itself to if "a compiler error message [told] you to come here".
* The previous content of `CONTRIBUTING.md` now lives in the "Contributing to Rust" chapter.
When/if the guide/"Getting Started" section gets revised to not be `rustc`-specific, the choice of linked chapter could be updated.
In the meantime this prevents leading first time contributors into a confusing cul de sac.
_[I wasn't planning to make a PR for this until discussion in #77215 concluded but the discovery that the "first issue" pop-up also links to this document IMO makes it a higher priority to make the link useful sooner rather than later.]_
Related issues:
* https://github.com/rust-lang/rust/issues/77215
* https://github.com/rust-lang/rustc-dev-guide/issues/775#issuecomment-699063082
Fix trait solving ICEs
- Selection candidates that are known to be applicable are preferred
over candidates that are not.
- Don't ICE if a projection/object candidate is no longer applicable
(this can happen due to cycles in normalization)
- Normalize supertraits when finding trait object candidates
Closes#77653Closes#77656
r? `@nikomatsakis`
Make fewer types generic over QueryContext
While trying to refactor `rustc_query_system::query::QueryContext` to make it dyn-safe, I noticed some smaller things:
* QueryConfig doesn't need to be generic over QueryContext
* ~~The `kind` field on QueryJobId is unused~~
* Some unnecessary where clauses
* Many types in `job.rs` where generic over `QueryContext` but only needed `QueryContext::Query`.
If handle_cycle_error() could be refactored to not take `error: CycleError<CTX::Query>`, all those bounds could be removed as well.
Changing `find_cycle_in_stack()` in job.rs to not take a `tcx` argument is the only functional change here. Everything else is just updating type signatures. (aka compile-error driven development ^^)
~~Currently there is a weird bug where memory usage suddenly skyrockets when running UI tests. I'll investigate that tomorrow.
A perf run probably won't make sense before that is fixed.~~
EDIT: `kind` actually is used by `Eq`, and re-adding it fixed the memory issue.
Use `DroplessArena` where we know the type doesn't need drop
This PR uses a single `DroplessArena` in resolve instead of three separate `TypedArena`s.
`DroplessArena` checks that the type indeed doesn't need drop, so in case the types change, this will result in visible failures.
Rollup of 10 pull requests
Successful merges:
- #77420 (Unify const-checking structured errors for `&mut` and `&raw mut`)
- #77554 (Support signed integers and `char` in v0 mangling)
- #77976 (Mark inout asm! operands as used in liveness pass)
- #78009 (Haiku: explicitly set CMAKE_SYSTEM_NAME when cross-compiling)
- #78084 (Greatly improve display for small mobile devices screens)
- #78155 (Fix two small issues in compiler/rustc_lint/src/types.rs)
- #78156 (Fixed build failure of `rustfmt`)
- #78172 (Add test case for #77062)
- #78188 (Add tracking issue number for pin_static_ref)
- #78200 (Add `ControlFlow::is_{break,continue}` methods)
Failed merges:
r? `@ghost`
* compiler docs
* Don't format list as part of a code block
* Clean up some other formatting
* rustdoc book
* Update CommonMark spec version to latest (0.28 -> 0.29)
* Clean up some various wording and formatting
