X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Ftools%2Fclippy%2Fclippy_lints%2Fsrc%2Fif_let_mutex.rs;h=e9501700784931c25ac97277fafa0b825ceac596;hb=9246e8867cf6f6af0791a611afecec4687c0b038;hp=e20741d2407e63b21a09ff0b4d40b299dbedcd77;hpb=7a626cf7ce908a1c210cc91a043c4c4a23d42b62;p=rust.git

diff --git a/src/tools/clippy/clippy_lints/src/if_let_mutex.rs b/src/tools/clippy/clippy_lints/src/if_let_mutex.rs
index e20741d2407..e9501700784 100644
--- a/src/tools/clippy/clippy_lints/src/if_let_mutex.rs
+++ b/src/tools/clippy/clippy_lints/src/if_let_mutex.rs
@@ -3,10 +3,9 @@
 use clippy_utils::ty::is_type_diagnostic_item;
 use clippy_utils::SpanlessEq;
 use if_chain::if_chain;
-use rustc_hir::intravisit::{self as visit, NestedVisitorMap, Visitor};
+use rustc_hir::intravisit::{self as visit, Visitor};
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::hir::map::Map;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::sym;
 
@@ -91,8 +90,6 @@ pub struct OppVisitor<'a, 'tcx> {
 }
 
 impl<'tcx> Visitor<'tcx> for OppVisitor<'_, 'tcx> {
-    type Map = Map<'tcx>;
-
     fn visit_expr(&mut self, expr: &'tcx Expr<'_>) {
         if let Some(mutex) = is_mutex_lock_call(self.cx, expr) {
             self.found_mutex = Some(mutex);
@@ -101,10 +98,6 @@ fn visit_expr(&mut self, expr: &'tcx Expr<'_>) {
         }
         visit::walk_expr(self, expr);
     }
-
-    fn nested_visit_map(&mut self) -> NestedVisitorMap<Self::Map> {
-        NestedVisitorMap::None
-    }
 }
 
 /// Checks if `Mutex::lock` is called in any of the branches.
@@ -115,8 +108,6 @@ pub struct ArmVisitor<'a, 'tcx> {
 }
 
 impl<'tcx> Visitor<'tcx> for ArmVisitor<'_, 'tcx> {
-    type Map = Map<'tcx>;
-
     fn visit_expr(&mut self, expr: &'tcx Expr<'tcx>) {
         if let Some(mutex) = is_mutex_lock_call(self.cx, expr) {
             self.found_mutex = Some(mutex);
@@ -125,10 +116,6 @@ fn visit_expr(&mut self, expr: &'tcx Expr<'tcx>) {
         }
         visit::walk_expr(self, expr);
     }
-
-    fn nested_visit_map(&mut self) -> NestedVisitorMap<Self::Map> {
-        NestedVisitorMap::None
-    }
 }
 
 impl<'tcx, 'l> ArmVisitor<'tcx, 'l> {
@@ -140,7 +127,7 @@ fn same_mutex(&self, cx: &LateContext<'_>, op_mutex: &Expr<'_>) -> bool {
 
 fn is_mutex_lock_call<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) -> Option<&'tcx Expr<'tcx>> {
     if_chain! {
-        if let ExprKind::MethodCall(path, _span, [self_arg, ..], _) = &expr.kind;
+        if let ExprKind::MethodCall(path, [self_arg, ..], _) = &expr.kind;
         if path.ident.as_str() == "lock";
         let ty = cx.typeck_results().expr_ty(self_arg);
         if is_type_diagnostic_item(cx, ty, sym::Mutex);