diff options
| -rw-r--r-- | compiler/rustc_ast_lowering/src/item.rs | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index 617cacee0e7..0cfcd843ddd 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -1096,9 +1096,12 @@ impl<'hir> LoweringContext<'_, 'hir> { // Check if this is a binding pattern, if so, we can optimize and avoid adding a // `let <pat> = __argN;` statement. In this case, we do not rename the parameter. let (ident, is_simple_parameter) = match parameter.pat.kind { - hir::PatKind::Binding(hir::BindingAnnotation::Unannotated, _, ident, _) => { - (ident, true) - } + hir::PatKind::Binding( + hir::BindingAnnotation::Unannotated | hir::BindingAnnotation::Mutable, + _, + ident, + _, + ) => (ident, true), _ => { // Replace the ident for bindings that aren't simple. let name = format!("__arg{}", index); |