| // Copyright 2013 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use rustc::hir; |
| use rustc::hir::itemlikevisit::ItemLikeVisitor; |
| use rustc::ty::TyCtxt; |
| |
| pub fn test_inferred_outlives<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>) { |
| tcx.hir.krate().visit_all_item_likes(&mut OutlivesTest { tcx }); |
| } |
| |
| struct OutlivesTest<'a, 'tcx: 'a> { |
| tcx: TyCtxt<'a, 'tcx, 'tcx> |
| } |
| |
| impl<'a, 'tcx> ItemLikeVisitor<'tcx> for OutlivesTest<'a, 'tcx> { |
| fn visit_item(&mut self, item: &'tcx hir::Item) { |
| let item_def_id = self.tcx.hir.local_def_id(item.id); |
| |
| // For unit testing: check for a special "rustc_outlives" |
| // attribute and report an error with various results if found. |
| if self.tcx.has_attr(item_def_id, "rustc_outlives") { |
| let inferred_outlives_of = self.tcx.inferred_outlives_of(item_def_id); |
| span_err!(self.tcx.sess, |
| item.span, |
| E0640, |
| "{:?}", |
| inferred_outlives_of); |
| } |
| } |
| |
| fn visit_trait_item(&mut self, _: &'tcx hir::TraitItem) { } |
| fn visit_impl_item(&mut self, _: &'tcx hir::ImplItem) { } |
| } |