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Rollup merge of #124214 - carbotaniuman:parse_unsafe_attrs, r=michaelwoerister

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Parse unsafe attributes

Initial parse implementation for #123757

This is the initial work to parse unsafe attributes, which is represented as an extra `unsafety` field in `MetaItem` and `AttrItem`. There's two areas in the code where it appears that parsing is done manually and not using the parser stuff, and I'm not sure how I'm supposed to thread the change there.
This commit is contained in:
Matthias Krüger 2024-06-07 20:14:28 +02:00 • committed by GitHub
commit 6e534c73c3
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36 changed files with 357 additions and 34 deletions
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9
compiler/rustc_ast/src/ast.rs
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@ -488,6 +488,7 @@ pub struct Crate {
/// E.g., `#[test]`, `#[derive(..)]`, `#[rustfmt::skip]` or `#[feature = "foo"]`.
#[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)]
pub struct MetaItem {
pub unsafety: Safety,
pub path: Path,
pub kind: MetaItemKind,
pub span: Span,
@ -2823,7 +2824,12 @@ pub struct NormalAttr {
impl NormalAttr {
pub fn from_ident(ident: Ident) -> Self {
Self {
item: AttrItem { path: Path::from_ident(ident), args: AttrArgs::Empty, tokens: None },
item: AttrItem {
unsafety: Safety::Default,
path: Path::from_ident(ident),
args: AttrArgs::Empty,
tokens: None,
},
tokens: None,
}
}
@ -2831,6 +2837,7 @@ impl NormalAttr {
#[derive(Clone, Encodable, Decodable, Debug, HashStable_Generic)]
pub struct AttrItem {
pub unsafety: Safety,
pub path: Path,
pub args: AttrArgs,
// Tokens for the meta item, e.g. just the `foo` within `#[foo]` or `#![foo]`.