Make closure capture independent of 2018 vs 2021 edition

dtolnay · Jun 2, 2022 · d8587c2 · d8587c2
1 parent 2581d0c
commit d8587c2
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/expand.rs b/src/expand.rs
@@ -355,7 +355,11 @@ fn transform_block(context: Context, sig: &mut Signature, block: &mut Block) {
                 } else {
                     let pat = &arg.pat;
                     let ident = positional_arg(i, pat);
-                    quote!(let #pat = #ident;)
+                    if let Pat::Wild(_) = **pat {
+                        quote!(let #ident = #ident;)
+                    } else {
+                        quote!(let #pat = #ident;)
+                    }
                 }
             }
         })