// and `#[unstable (..)]`), but are not declared in one single location
// (unlike lang features), which means we need to collect them instead.
-use rustc::hir::map::Map;
-use rustc::middle::lib_features::LibFeatures;
-use rustc::ty::query::Providers;
-use rustc::ty::TyCtxt;
use rustc_ast::ast::{Attribute, MetaItem, MetaItemKind};
use rustc_errors::struct_span_err;
use rustc_hir::def_id::LOCAL_CRATE;
use rustc_hir::intravisit::{self, NestedVisitorMap, Visitor};
+use rustc_middle::hir::map::Map;
+use rustc_middle::middle::lib_features::LibFeatures;
+use rustc_middle::ty::query::Providers;
+use rustc_middle::ty::TyCtxt;
use rustc_span::symbol::Symbol;
use rustc_span::{sym, Span};
impl Visitor<'tcx> for LibFeatureCollector<'tcx> {
type Map = Map<'tcx>;
- fn nested_visit_map(&mut self) -> NestedVisitorMap<'_, Self::Map> {
- NestedVisitorMap::All(&self.tcx.hir())
+ fn nested_visit_map(&mut self) -> NestedVisitorMap<Self::Map> {
+ NestedVisitorMap::All(self.tcx.hir())
}
fn visit_attribute(&mut self, attr: &'tcx Attribute) {