Handle access list txs at espresso hardfork

core/types/celo_transaction_signing_forks.go

@@ -103,6 +103,10 @@ func (c *celoLegacy) txFuncs(tx *Transaction) *txFuncs {
 		// changes that were not part of Espresso. So instead we ned to handle
 		// DynamicFeeTxTypes here.
 		return dynamicFeeTxFuncs
+	case t == AccessListTxType:
+		// Similar to the dynamic fee tx type, we need to handle the access list tx type that was also enabled by the
+		// espresso hardfork.
+		return accessListTxFuncs
 	case t == CeloDynamicFeeTxV2Type:
 		return celoDynamicFeeTxV2Funcs
 	case t == CeloDynamicFeeTxType:

core/types/celo_transaction_signing_tx_funcs.go

@@ -60,6 +60,18 @@ var (
 		},
 	}
 
+	accessListTxFuncs = &txFuncs{
+		hash: func(tx *Transaction, chainID *big.Int) common.Hash {
+			return NewEIP2930Signer(chainID).Hash(tx)
+		},
+		signatureValues: func(tx *Transaction, sig []byte, signerChainID *big.Int) (r *big.Int, s *big.Int, v *big.Int, err error) {
+			return NewEIP2930Signer(signerChainID).SignatureValues(tx, sig)
+		},
+		sender: func(tx *Transaction, hashFunc func(tx *Transaction, chainID *big.Int) common.Hash, signerChainID *big.Int) (common.Address, error) {
+			return NewEIP2930Signer(tx.ChainId()).Sender(tx)
+		},
+	}
+
 	dynamicFeeTxFuncs = &txFuncs{
 		hash: func(tx *Transaction, chainID *big.Int) common.Hash {
 			return NewLondonSigner(chainID).Hash(tx)