Fix rustfmt

Author: juntyr

crates/numcodecs-wasm-guest/src/lib.rs

@@ -80,14 +80,17 @@ pub mod bindings {
 /// ```
 macro_rules! export_codec {
     ($codec:ty) => {
+        #[cfg(target_arch = "wasm32")]
         const _: () = {
             type Codec = $codec;
 
-            #[cfg(target_arch = "wasm32")]
             $crate::bindings::export!(Codec with_types_in $crate::bindings);
+        };
 
+        const _: () {
             const fn can_only_export_static_codec<T: $crate::numcodecs::StaticCodec>() {}
-            can_only_export_static_codec::<Codec>()
+
+            can_only_export_static_codec::<$codec>()
         };
     };
 }