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Auto merge of #124482 - spastorino:unsafe-extern-blocks, r=oli-obk

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Unsafe extern blocks

This implements RFC 3484.

Tracking issue #123743 and RFC https://github.com/rust-lang/rfcs/pull/3484

This is better reviewed commit by commit.
This commit is contained in:
bors 2024-06-06 08:14:58 +00:00
commit 2d28b6384e
93 changed files with 714 additions and 152 deletions
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6
compiler/rustc_middle/src/hir/map/mod.rs
View file

@ -305,7 +305,9 @@ impl<'hir> Map<'hir> {
DefKind::InlineConst => BodyOwnerKind::Const { inline: true },
DefKind::Ctor(..) | DefKind::Fn | DefKind::AssocFn => BodyOwnerKind::Fn,
DefKind::Closure => BodyOwnerKind::Closure,
DefKind::Static { mutability, nested: false } => BodyOwnerKind::Static(mutability),
DefKind::Static { safety: _, mutability, nested: false } => {
BodyOwnerKind::Static(mutability)
}
dk => bug!("{:?} is not a body node: {:?}", def_id, dk),
}
}
@ -886,7 +888,7 @@ impl<'hir> Map<'hir> {
Node::Variant(variant) => named_span(variant.span, variant.ident, None),
Node::ImplItem(item) => named_span(item.span, item.ident, Some(item.generics)),
Node::ForeignItem(item) => match item.kind {
ForeignItemKind::Fn(decl, _, _) => until_within(item.span, decl.output.span()),
ForeignItemKind::Fn(decl, _, _, _) => until_within(item.span, decl.output.span()),
_ => named_span(item.span, item.ident, None),
},
Node::Ctor(_) => return self.span(self.tcx.parent_hir_id(hir_id)),

2
compiler/rustc_middle/src/hir/mod.rs
View file

@ -201,7 +201,7 @@ pub fn provide(providers: &mut Providers) {
..
})
| Node::ForeignItem(&ForeignItem {
kind: ForeignItemKind::Fn(_, idents, _),
kind: ForeignItemKind::Fn(_, idents, _, _),
..
}) = tcx.hir_node(tcx.local_def_id_to_hir_id(def_id))
{

4
compiler/rustc_middle/src/mir/pretty.rs
View file

@ -559,10 +559,10 @@ fn write_mir_sig(tcx: TyCtxt<'_>, body: &Body<'_>, w: &mut dyn io::Write) -> io:
match (kind, body.source.promoted) {
(_, Some(_)) => write!(w, "const ")?, // promoteds are the closest to consts
(DefKind::Const | DefKind::AssocConst, _) => write!(w, "const ")?,
(DefKind::Static { mutability: hir::Mutability::Not, nested: false }, _) => {
(DefKind::Static { safety: _, mutability: hir::Mutability::Not, nested: false }, _) => {
write!(w, "static ")?
}
(DefKind::Static { mutability: hir::Mutability::Mut, nested: false }, _) => {
(DefKind::Static { safety: _, mutability: hir::Mutability::Mut, nested: false }, _) => {
write!(w, "static mut ")?
}
(_, _) if is_function => write!(w, "fn ")?,