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`UnsafeCell` blocks niches inside its nested type from being available outside
fixes #87341
This implements the plan by `@eddyb` in https://github.com/rust-lang/rust/issues/87341#issuecomment-886083646
Somewhat related PR (not strictly necessary, but that cleanup made this PR simpler): #94527
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This helps bring `hir::Expr` size down, `Closure` was the biggest
variant, especially after `for<>` additions.
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Use a bitset instead of a hash map in HIR ID validator
The hashset insertion was slightly hot in incr patched runs, but it seems unnecessary to use a hashset here, as it just checks that a dense set of N integers was seen.
I'm not sure if it's possible to know the amount of items beforehand to preallocate the bitset? I suppose not.
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lints: mostly translatable diagnostics
As lints are created slightly differently than other diagnostics, intended to try make them translatable first and then look into the applicability of diagnostic structs but ended up just making most of the diagnostics in the crate translatable (which will still be useful if I do make a lot of them structs later anyway).
r? ``@compiler-errors``
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rustc_passes/src/entry.rs: De-duplicate more code with `fn throw_attr_err()`
So we can more easily re-use the code for other attributes later. More specifically [`#[unix_sigpipe]`](https://github.com/rust-lang/rust/pull/97802). This refactoring is covered by this test:
https://github.com/rust-lang/rust/blob/8aab472d52ba7314dc193c73abcd384e2586123c/src/test/ui/feature-gates/issue-43106-gating-of-builtin-attrs-error.rs#L120
(Well, only `#[start]`, but the code for `#[rustc_main]` is identical.)
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Rewrite dead-code pass to avoid fetching HIR.
This allows to get a more uniform handling of spans, and to simplify the grouping of diagnostics for variants and fields.
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Accept `DiagnosticMessage` in `LintDiagnosticBuilder::build` so that
lints can be built with translatable diagnostic messages.
Signed-off-by: David Wood <david.wood@huawei.com>
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So we can re-use the code for other attributes later.
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Fixup missing renames from `#[main]` to `#[rustc_main]`
In #84217 `#[main]` was removed and replaced with `#[rustc_main]`. In some places the rename was forgotten, which makes the current code confusing, because at first glance it seems that `#[main]` is still around. Perform the renames also in these places.
I noticed this (after first being confused by it) when working on #97802.
r? `@petrochenkov`
(since you reviewed the other PR)
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rustc_target: Remove some redundant target properties
`is_like_emscripten` is equivalent to `os == "emscripten"`, so it's removed.
`is_like_fuchsia` is equivalent to `os == "fuchsia"`, so it's removed.
`is_like_osx` also falls into the same category and is equivalent to `vendor == "apple"`, but it's commonly used so I kept it as is for now.
`is_like_(solaris,windows,wasm)` are combinations of different operating systems or architectures (see compiler/rustc_target/src/spec/tests/tests_impl.rs) so they are also kept as is.
I think `is_like_wasm` (and maybe `is_like_osx`) are sufficiently closed sets, so we can remove these fields as well and replace them with methods like `fn is_like_wasm() { arch == "wasm32" || arch == "wasm64" }`.
On other hand, `is_like_solaris` and `is_like_windows` are sufficiently open and I can imagine custom targets introducing other values for `os`.
This is kind of a gray area.
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In fc357039f9 `#[main]` was removed and replaced with `#[rustc_main]`.
In some place the rename was forgotten, which makes the current code
confusing, because at first glance it seems that `#[main]` is still
around. Perform the renames also in these places.
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r=estebank
Collapse multiple dead code warnings into a single diagnostic
closes #97643
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add comments in `store_dead_field_or_variant`
support multiple log level
add a item ident label
fix ui tests
fix a ui test
fix a rustdoc ui test
use let chain
refactor: remove `store_dead_field_or_variant`
fix a tiny bug
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r=cjgillot
Fix `MissingDoc` quadratic behaviour
Best reviewed one commit at a time.
r? `@cjgillot`
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The reference issue has been closed (the feature has been stabilized)
and things work fine without fine, it seems.
Signed-off-by: Yuki Okushi <jtitor@2k36.org>
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Improve the tuple and unit trait docs
* Reduce duplicate impls; show only the `(T,)` and include a sentence saying that there exists ones up to twelve of them.
* Show `Copy` and `Clone`.
* Show auto traits like `Send` and `Sync`, and blanket impls like `Any`.
Here's the new version:
* <https://notriddle.com/notriddle-rustdoc-test/std/primitive.tuple.html>
* <https://notriddle.com/notriddle-rustdoc-test/std/primitive.unit.html>
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Remove `rustc_deprecated` diagnostics
Follow-up on #95960. The diagnostics will remain until the next bootstrap, at which point people will have had six weeks to adjust.
``@rustbot`` label +A-diagnostics
r? ``@compiler-errors``
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Make `ExprKind::Closure` a struct variant.
Simple refactor since we both need it to introduce additional fields in `ExprKind::Closure`.
r? ``@Aaron1011``
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compiler: remove unused deps
Removed unused dependencies in compiler crates and moves few `libc` under `target.cfg(unix)` .
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lint: add diagnostic translation migration lints
Introduce allow-by-default lints for checking whether diagnostics are written in
`SessionDiagnostic` or `AddSubdiagnostic` impls and whether diagnostics are translatable. These lints can be denied for modules once they are fully migrated to impls and translation.
These lints are intended to be temporary - once all diagnostics have been changed then we can just change the APIs we have and that will enforce these constraints thereafter.
r? `````@oli-obk`````
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Co-authored-by: Jacob Hoffman-Andrews <github@hoffman-andrews.com>
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Add test case.
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