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Rollup merge of #152577 - Ozzy1423:macro-attr, r=JonathanBrouwer

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Port #[rustc_proc_macro_decls] to the new attribute parser.

Tracking issue: https://github.com/rust-lang/rust/issues/131229

r? @JonathanBrouwer
This commit is contained in:
Jonathan Brouwer 2026-02-14 18:55:36 +01:00 • committed by GitHub
commit cf0cb74612
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GPG key ID: B5690EEEBB952194
6 changed files with 18 additions and 5 deletions
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9
compiler/rustc_attr_parsing/src/attributes/macro_attrs.rs
View file

@ -206,3 +206,12 @@ impl<S: Stage> SingleAttributeParser<S> for CollapseDebugInfoParser {
Some(AttributeKind::CollapseDebugInfo(info))
}
}
pub(crate) struct RustcProcMacroDeclsParser;
impl<S: Stage> NoArgsAttributeParser<S> for RustcProcMacroDeclsParser {
const PATH: &[Symbol] = &[sym::rustc_proc_macro_decls];
const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Warn;
const ALLOWED_TARGETS: AllowedTargets = AllowedTargets::AllowList(&[Allow(Target::Static)]);
const CREATE: fn(Span) -> AttributeKind = |_| AttributeKind::RustcProcMacroDecls;
}

1
compiler/rustc_attr_parsing/src/context.rs
View file

@ -300,6 +300,7 @@ attribute_parsers!(
Single<WithoutArgs<RustcOutlivesParser>>,
Single<WithoutArgs<RustcPassIndirectlyInNonRusticAbisParser>>,
Single<WithoutArgs<RustcPreserveUbChecksParser>>,
Single<WithoutArgs<RustcProcMacroDeclsParser>>,
Single<WithoutArgs<RustcReallocatorParser>>,
Single<WithoutArgs<RustcRegionsParser>>,
Single<WithoutArgs<RustcShouldNotBeCalledOnConstItems>>,

3
compiler/rustc_hir/src/attrs/data_structures.rs
View file

@ -1295,6 +1295,9 @@ pub enum AttributeKind {
/// Represents `#[rustc_preserve_ub_checks]`
RustcPreserveUbChecks,
/// Represents `#[rustc_proc_macro_decls]`
RustcProcMacroDecls,
/// Represents `#[rustc_pub_transparent]` (used by the `repr_transparent_external_private_fields` lint).
RustcPubTransparent(Span),

1
compiler/rustc_hir/src/attrs/encode_cross_crate.rs
View file

@ -158,6 +158,7 @@ impl AttributeKind {
RustcPassByValue(..) => Yes,
RustcPassIndirectlyInNonRusticAbis(..) => No,
RustcPreserveUbChecks => No,
RustcProcMacroDecls => No,
RustcPubTransparent(..) => Yes,
RustcReallocator => No,
RustcRegions => No,

7
compiler/rustc_interface/src/proc_macro_decls.rs
View file

@ -1,15 +1,14 @@
use rustc_ast::attr;
use rustc_hir::attrs::AttributeKind;
use rustc_hir::def_id::LocalDefId;
use rustc_hir::find_attr;
use rustc_middle::query::Providers;
use rustc_middle::ty::TyCtxt;
use rustc_span::sym;
fn proc_macro_decls_static(tcx: TyCtxt<'_>, (): ()) -> Option<LocalDefId> {
let mut decls = None;
for id in tcx.hir_free_items() {
let attrs = tcx.hir_attrs(id.hir_id());
if attr::contains_name(attrs, sym::rustc_proc_macro_decls) {
if find_attr!(tcx.hir_attrs(id.hir_id()), AttributeKind::RustcProcMacroDecls) {
decls = Some(id.owner_id.def_id);
}
}

2
compiler/rustc_passes/src/check_attr.rs
View file

@ -350,6 +350,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
| AttributeKind::RustcPassByValue (..)
| AttributeKind::RustcPassIndirectlyInNonRusticAbis(..)
| AttributeKind::RustcPreserveUbChecks
| AttributeKind::RustcProcMacroDecls
| AttributeKind::RustcReallocator
| AttributeKind::RustcRegions
| AttributeKind::RustcReservationImpl(..)
@ -403,7 +404,6 @@ impl<'tcx> CheckAttrVisitor<'tcx> {
| sym::rustc_doc_primitive
| sym::rustc_test_marker
| sym::rustc_layout
| sym::rustc_proc_macro_decls
| sym::rustc_autodiff
| sym::rustc_capture_analysis
| sym::rustc_mir