1 use rustc_hir::def_id::LocalDefId;
2 use rustc_middle::ty::query::Providers;
3 use rustc_middle::ty::TyCtxt;
4 use rustc_span::symbol::sym;
6 fn proc_macro_decls_static(tcx: TyCtxt<'_>, (): ()) -> Option<LocalDefId> {
9 for id in tcx.hir().items() {
10 let attrs = tcx.hir().attrs(id.hir_id());
11 if tcx.sess.contains_name(attrs, sym::rustc_proc_macro_decls) {
12 decls = Some(id.owner_id.def_id);
19 pub(crate) fn provide(providers: &mut Providers) {
20 *providers = Providers { proc_macro_decls_static, ..*providers };