use crate::utils::{snippet_with_applicability, span_lint_and_then};
use if_chain::if_chain;
-use rustc::hir::{BindingAnnotation, MutImmutable, Node, Pat, PatKind};
-use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
-use rustc::{declare_lint_pass, declare_tool_lint};
use rustc_errors::Applicability;
+use rustc_hir::{BindingAnnotation, Mutability, Node, Pat, PatKind};
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
declare_clippy_lint! {
/// **What it does:** Checks for useless borrowed references.
declare_lint_pass!(NeedlessBorrowedRef => [NEEDLESS_BORROWED_REFERENCE]);
impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessBorrowedRef {
- fn check_pat(&mut self, cx: &LateContext<'a, 'tcx>, pat: &'tcx Pat) {
+ fn check_pat(&mut self, cx: &LateContext<'a, 'tcx>, pat: &'tcx Pat<'_>) {
if pat.span.from_expansion() {
// OK, simple enough, lints doesn't check in macro.
return;
if_chain! {
// Only lint immutable refs, because `&mut ref T` may be useful.
- if let PatKind::Ref(ref sub_pat, MutImmutable) = pat.kind;
+ if let PatKind::Ref(ref sub_pat, Mutability::Not) = pat.kind;
// Check sub_pat got a `ref` keyword (excluding `ref mut`).
if let PatKind::Binding(BindingAnnotation::Ref, .., spanned_name, _) = sub_pat.kind;