random::<Improve<Mutability>>()

2022-11-23 19:15:23 +00:00
parent 4439f1f6a6
commit 6486ba94a3
2 changed files with 2 additions and 5 deletions
--- a/compiler/rustc_hir/src/pat_util.rs
+++ b/compiler/rustc_hir/src/pat_util.rs
@@ -130,10 +130,7 @@ impl hir::Pat<'_> {
    pub fn contains_explicit_ref_binding(&self) -> Option<hir::Mutability> {
        let mut result = None;
        self.each_binding(|annotation, _, _, _| match annotation {
-            hir::BindingAnnotation::REF => match result {
-                None | Some(hir::Mutability::Not) => result = Some(hir::Mutability::Not),
-                _ => {}
-            },
+            hir::BindingAnnotation::REF if result.is_none() => result = Some(hir::Mutability::Not),
            hir::BindingAnnotation::REF_MUT => result = Some(hir::Mutability::Mut),
            _ => {}
        });