31 lines
1.0 KiB
Rust
31 lines
1.0 KiB
Rust
use rustc_hir as hir;
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use rustc_hir::itemlikevisit::ItemLikeVisitor;
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use rustc_middle::ty::TyCtxt;
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use rustc_session::cstore::ForeignModule;
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crate fn collect(tcx: TyCtxt<'_>) -> Vec<ForeignModule> {
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let mut collector = Collector { modules: Vec::new() };
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tcx.hir().visit_all_item_likes(&mut collector);
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collector.modules
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}
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struct Collector {
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modules: Vec<ForeignModule>,
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}
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impl ItemLikeVisitor<'tcx> for Collector {
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fn visit_item(&mut self, it: &'tcx hir::Item<'tcx>) {
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let items = match it.kind {
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hir::ItemKind::ForeignMod { items, .. } => items,
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_ => return,
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};
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let foreign_items = items.iter().map(|it| it.id.def_id.to_def_id()).collect();
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self.modules.push(ForeignModule { foreign_items, def_id: it.def_id.to_def_id() });
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}
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fn visit_trait_item(&mut self, _it: &'tcx hir::TraitItem<'tcx>) {}
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fn visit_impl_item(&mut self, _it: &'tcx hir::ImplItem<'tcx>) {}
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fn visit_foreign_item(&mut self, _it: &'tcx hir::ForeignItem<'tcx>) {}
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}
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