Allow more `!Copy` impls
You can already implement `!Copy` for a lot of types (with `#![feature(negative_impls)]`). However, before this PR you could not implement `!Copy` for ADTs whose fields don't implement `Copy` which didn't make any sense. Further, you couldn't implement `!Copy` for types impl'ing `Drop` (equally nonsensical).
``@rustbot`` label T-types F-negative_impls
Fixes#101836.
r? types
Update bootstrap compiler to 1.65.0
This PR updates the bootstrap compiler to Rust 1.65.0, removing the various `cfg(bootstrap)`s.
r? `@Mark-Simulacrum`
Rollup of 5 pull requests
Successful merges:
- #102143 (Recover from struct nested in struct)
- #102178 (bootstrap: the backtrace feature is stable, no need to allow it any more)
- #102197 (Stabilize const `BTree{Map,Set}::new`)
- #102267 (Don't set RUSTC in the bootstrap build script)
- #102270 (Remove benches from `rustc_middle`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
Remove benches from `rustc_middle`
These benches benchmark rust langauge features and not the compiler, so they seem to be in the wrong place here. They also all take <1ns, making them pretty useless. Looking at their git history, they just seem to have been carried around for many, many years. This commit ends their journey.
Stabilize const `BTree{Map,Set}::new`
The FCP was completed in #71835.
Since `len` and `is_empty` are not const stable yet, this also creates a new feature for them since they previously used the same `const_btree_new` feature.
Clean up (sub)diagnostic derives
The biggest chunk of this is unifying the parsing of subdiagnostic attributes (`#[error]`, `#[suggestion(...)]`, `#[label(...)]`, etc) between `Subdiagnostic` and `Diagnostic` type attributes as well as `Diagnostic` field attributes.
It also improves a number of proc macro diagnostics.
Waiting for #101558.
Use function pointers instead of macro-unrolled loops in rustc_query_impl
By making these standalone functions, we
a) allow making them extensible in the future with a new `QueryStruct`
b) greatly decrease the amount of code in each individual function, avoiding exponential blowup in llvm
Helps with https://github.com/rust-lang/rust/issues/96524. Based on https://github.com/rust-lang/rust/pull/101173; only the last commit is relevant.
r? `@cjgillot`
* Remove the `float: right` fallback from the main header, which hasn't
been needed since IE11 support was dropped.
* Remove `in-band` from low-level headers, which hasn't been needed since
`.rightside` switched to `float: right` in
593d6d1cb1
* Remove unreachable `.in-band > code, .in-band > .code-header` CSS, since
the `in-band` class was attached to the `code-header` itself, not nested
directly below it.
* Use `rem` instead of `em` for code header margins.
* This results in a slight change in spacing around impls and item-info,
but since it makes it more consistent with the way methods are presented,
it's probably fine.
Neither require nor imply lifetime bounds on opaque type for well formedness
The actual hidden type can live arbitrarily longer than any individual lifetime and arbitrarily shorter than all but one of the lifetimes.
fixes#86218fixes#84305
This is a **breaking change** but it is a necessary soundness fix
These benches benchmark rust langauge features and not the compiler,
so they seem to be in the wrong place here. They also all take <1ns,
making them pretty useless. Looking at their git history, they just
seem to have been carried around for many, many years. This commit
ends their journey.
By making these standalone functions, we
a) allow making them extensible in the future with a new `QueryStruct`
b) greatly decrease the amount of code in each individual function, avoiding exponential blowup in llvm
Rollup of 8 pull requests
Successful merges:
- #98111 (Clarify `[T]::select_nth_unstable*` return values)
- #101431 (Look at move place's type when suggesting mutable reborrow)
- #101800 (Constify slice.split_at_mut(_unchecked))
- #101997 (Remove support for legacy PM)
- #102194 (Note the type when unable to drop values in compile time)
- #102200 (Constify Default impl's for Arrays and Tuples.)
- #102245 (Constify cmp_min_max_by.)
- #102259 (Type-annotate and simplify documentation of Option::unwrap_or_default)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
This restores functionality broken by #98483. Unfortunately, it doesn't
add a test to verify this works, but in this case we notice pretty
quickly as perf uses this functionality and so reports breakage
immediately after merging.
