2 use rustc::hir::itemlikevisit::ItemLikeVisitor;
5 pub fn test_inferred_outlives<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>) {
8 .visit_all_item_likes(&mut OutlivesTest { tcx });
11 struct OutlivesTest<'a, 'tcx: 'a> {
12 tcx: TyCtxt<'a, 'tcx, 'tcx>,
15 impl<'a, 'tcx> ItemLikeVisitor<'tcx> for OutlivesTest<'a, 'tcx> {
16 fn visit_item(&mut self, item: &'tcx hir::Item) {
17 let item_def_id = self.tcx.hir().local_def_id_from_hir_id(item.hir_id);
19 // For unit testing: check for a special "rustc_outlives"
20 // attribute and report an error with various results if found.
21 if self.tcx.has_attr(item_def_id, "rustc_outlives") {
22 let inferred_outlives_of = self.tcx.inferred_outlives_of(item_def_id);
33 fn visit_trait_item(&mut self, _: &'tcx hir::TraitItem) {}
34 fn visit_impl_item(&mut self, _: &'tcx hir::ImplItem) {}