fix: address to function

Author: JuArce

batcher/aligned-batcher/src/lib.rs

@@ -532,6 +532,15 @@ impl Batcher {
         Ok(())
     }
 
+    /// Returns the address that will be used for non-paying users.
+    /// This function assumes that the non-paying configuration is set.
+    fn replacement_address(&self) -> Address {
+        self.non_paying_config
+            .as_ref()
+            .map(|config| config.replacement.address())
+            .unwrap()
+    }
+
     async fn handle_submit_proof_msg(
         self: Arc<Self>,
         client_msg: Box<SubmitProofMessage>,
@@ -583,12 +592,7 @@ impl Batcher {
         } else {
             info!("Generating non-paying data");
             // If the user is not required to pay, substitute their address with a pre-funded Aligned address
-            addr = self
-                .non_paying_config
-                .as_ref()
-                .unwrap()
-                .replacement
-                .address();
+            addr = self.replacement_address();
             // Substitute the max_fee to a high enough value to cover the gas cost of the proof
             let mut aux_verification_data = client_msg.verification_data.clone();
             aux_verification_data.max_fee = (DEFAULT_MAX_FEE_PER_PROOF * 100).into(); // 2_000 gas per proof * 100 gwei gas price (upper bound) * 100 to make sure it is enough