declare_lint_pass!(MutMut => [MUT_MUT]);
-impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MutMut {
- fn check_block(&mut self, cx: &LateContext<'a, 'tcx>, block: &'tcx hir::Block<'_>) {
+impl<'tcx> LateLintPass<'tcx> for MutMut {
+ fn check_block(&mut self, cx: &LateContext<'tcx>, block: &'tcx hir::Block<'_>) {
intravisit::walk_block(&mut MutVisitor { cx }, block);
}
- fn check_ty(&mut self, cx: &LateContext<'a, 'tcx>, ty: &'tcx hir::Ty<'_>) {
+ fn check_ty(&mut self, cx: &LateContext<'tcx>, ty: &'tcx hir::Ty<'_>) {
use rustc_hir::intravisit::Visitor;
MutVisitor { cx }.visit_ty(ty);
}
pub struct MutVisitor<'a, 'tcx> {
- cx: &'a LateContext<'a, 'tcx>,
+ cx: &'a LateContext<'tcx>,
}
impl<'a, 'tcx> intravisit::Visitor<'tcx> for MutVisitor<'a, 'tcx> {
return;
}
- if let Some((_, arg, body)) = higher::for_loop(expr) {
+ if let Some((_, arg, body, _)) = higher::for_loop(expr) {
// A `for` loop lowers to:
// ```rust
// match ::std::iter::Iterator::next(&mut iter) {
expr.span,
"generally you want to avoid `&mut &mut _` if possible",
);
- } else if let ty::Ref(_, _, hir::Mutability::Mut) = self.cx.tables.expr_ty(e).kind {
+ } else if let ty::Ref(_, _, hir::Mutability::Mut) = self.cx.typeck_results().expr_ty(e).kind() {
span_lint(
self.cx,
MUT_MUT,