[R-4] Standardized fix

core/types/receipt.go

@@ -124,7 +124,7 @@ type storedReceiptRLP struct {
 }
 
 // v7StoredReceiptRLP is the storage encoding of a receipt used in database version 7.
-// This version was introduced when AltFee feature was added (2024-11).
+// This version was introduced when AltFee feature was added.
 // It includes L1Fee and all AltFee fields (FeeTokenID, FeeRate, TokenScale, FeeLimit).
 type v7StoredReceiptRLP struct {
 	PostStateOrStatus []byte

rollup/fees/rate.go

@@ -28,17 +28,17 @@ func TokenRate(state StateDB, tokenID uint16) (*big.Int, *big.Int, error) {
 }
 
 func EthToAlt(state StateDB, tokenID uint16, amount *big.Int) (*big.Int, error) {
-	rate, tokenSacle, err := TokenRate(state, tokenID)
+	rate, scale, err := TokenRate(state, tokenID)
 	if err != nil {
 		return nil, err
 	}
-	return types.EthToAlt(amount, rate, tokenSacle)
+	return types.EthToAlt(amount, rate, scale)
 }
 
 func AltToETH(state StateDB, tokenID uint16, amount *big.Int) (*big.Int, error) {
-	rate, tokenScale, err := TokenRate(state, tokenID)
+	rate, scale, err := TokenRate(state, tokenID)
 	if err != nil {
 		return nil, err
 	}
-	return types.AltToEth(amount, rate, tokenScale)
+	return types.AltToEth(amount, rate, scale)
 }

rollup/fees/token_transfer.go

@@ -59,7 +59,7 @@ func changeAltTokenBalanceByState(state StateDB, tokenAddress common.Address, ba
 	amountBytes := common.LeftPadBytes(newBalance.Bytes(), 32)
 	amountHash := common.BytesToHash(amountBytes)
 
-	// Calculate the storage slot for the user's balance
+	// Change user balance
 	state.SetState(tokenAddress, storageSlot, amountHash)
 
 	return nil