Fix Visitor::NestedFilter in Clippy

1 files changed, 1 insertions, 14 deletions

diff --git a/clippy_lints/src/loops/while_immutable_condition.rs b/clippy_lints/src/loops/while_immutable_condition.rs
index 5f9ebad25e8..5dcfed65c78 100644
--- a/clippy_lints/src/loops/while_immutable_condition.rs
+++ b/clippy_lints/src/loops/while_immutable_condition.rs
@@ -5,11 +5,10 @@ use clippy_utils::usage::mutated_variables;
 use if_chain::if_chain;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::def_id::DefIdMap;
-use rustc_hir::intravisit::{walk_expr, NestedVisitorMap, Visitor};
+use rustc_hir::intravisit::{walk_expr, Visitor};
 use rustc_hir::HirIdSet;
 use rustc_hir::{Expr, ExprKind, QPath};
 use rustc_lint::LateContext;
-use rustc_middle::hir::map::Map;
 
 pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, cond: &'tcx Expr<'_>, expr: &'tcx Expr<'_>) {
     if constant(cx, cx.typeck_results(), cond).is_some() {
@@ -67,8 +66,6 @@ struct HasBreakOrReturnVisitor {
 }
 
 impl<'tcx> Visitor<'tcx> for HasBreakOrReturnVisitor {
-    type Map = Map<'tcx>;
-
     fn visit_expr(&mut self, expr: &'tcx Expr<'_>) {
         if self.has_break_or_return {
             return;
@@ -84,10 +81,6 @@ impl<'tcx> Visitor<'tcx> for HasBreakOrReturnVisitor {
 
         walk_expr(self, expr);
     }
-
-    fn nested_visit_map(&mut self) -> NestedVisitorMap<Self::Map> {
-        NestedVisitorMap::None
-    }
 }
 
 /// Collects the set of variables in an expression
@@ -123,8 +116,6 @@ impl<'a, 'tcx> VarCollectorVisitor<'a, 'tcx> {
 }
 
 impl<'a, 'tcx> Visitor<'tcx> for VarCollectorVisitor<'a, 'tcx> {
-    type Map = Map<'tcx>;
-
     fn visit_expr(&mut self, ex: &'tcx Expr<'_>) {
         match ex.kind {
             ExprKind::Path(_) => self.insert_def_id(ex),
@@ -134,8 +125,4 @@ impl<'a, 'tcx> Visitor<'tcx> for VarCollectorVisitor<'a, 'tcx> {
             _ => walk_expr(self, ex),
         }
     }
-
-    fn nested_visit_map(&mut self) -> NestedVisitorMap<Self::Map> {
-        NestedVisitorMap::None
-    }
 }