Merge pull request #6477 from ethereum-optimism/feat/erc721-impl

contracts-bedrock: erc721 bridge single impl

op-bindings/bindings/l1erc721bridge.go

@@ -30,8 +30,8 @@ var (
 
 // L1ERC721BridgeMetaData contains all meta data concerning the L1ERC721Bridge contract.
 var L1ERC721BridgeMetaData = &bind.MetaData{
-	ABI: "[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_messenger\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_otherBridge\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"localToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"remoteToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"ERC721BridgeFinalized\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"localToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"remoteToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"ERC721BridgeInitiated\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"MESSENGER\",\"outputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"OTHER_BRIDGE\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"uint32\",\"name\":\"_minGasLimit\",\"type\":\"uint32\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"bridgeERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"uint32\",\"name\":\"_minGasLimit\",\"type\":\"uint32\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"bridgeERC721To\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"deposits\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"finalizeBridgeERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"messenger\",\"outputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"otherBridge\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
-	Bin: 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+	ABI: "[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"localToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"remoteToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"ERC721BridgeFinalized\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"localToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"remoteToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"ERC721BridgeInitiated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"version\",\"type\":\"uint8\"}],\"name\":\"Initialized\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"MESSENGER\",\"outputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"OTHER_BRIDGE\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"uint32\",\"name\":\"_minGasLimit\",\"type\":\"uint32\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"bridgeERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"uint32\",\"name\":\"_minGasLimit\",\"type\":\"uint32\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"bridgeERC721To\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"deposits\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"finalizeBridgeERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"_messenger\",\"type\":\"address\"}],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"messenger\",\"outputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"otherBridge\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
+	Bin: 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 }
 
 // L1ERC721BridgeABI is the input ABI used to generate the binding from.
@@ -43,7 +43,7 @@ var L1ERC721BridgeABI = L1ERC721BridgeMetaData.ABI
 var L1ERC721BridgeBin = L1ERC721BridgeMetaData.Bin
 
 // DeployL1ERC721Bridge deploys a new Ethereum contract, binding an instance of L1ERC721Bridge to it.
-func DeployL1ERC721Bridge(auth *bind.TransactOpts, backend bind.ContractBackend, _messenger common.Address, _otherBridge common.Address) (common.Address, *types.Transaction, *L1ERC721Bridge, error) {
+func DeployL1ERC721Bridge(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *L1ERC721Bridge, error) {
 	parsed, err := L1ERC721BridgeMetaData.GetAbi()
 	if err != nil {
 		return common.Address{}, nil, nil, err
@@ -52,7 +52,7 @@ func DeployL1ERC721Bridge(auth *bind.TransactOpts, backend bind.ContractBackend,
 		return common.Address{}, nil, nil, errors.New("GetABI returned nil")
 	}
 
-	address, tx, contract, err := bind.DeployContract(auth, *parsed, common.FromHex(L1ERC721BridgeBin), backend, _messenger, _otherBridge)
+	address, tx, contract, err := bind.DeployContract(auth, *parsed, common.FromHex(L1ERC721BridgeBin), backend)
 	if err != nil {
 		return common.Address{}, nil, nil, err
 	}
@@ -450,6 +450,27 @@ func (_L1ERC721Bridge *L1ERC721BridgeTransactorSession) FinalizeBridgeERC721(_lo
 	return _L1ERC721Bridge.Contract.FinalizeBridgeERC721(&_L1ERC721Bridge.TransactOpts, _localToken, _remoteToken, _from, _to, _tokenId, _extraData)
 }
 
+// Initialize is a paid mutator transaction binding the contract method 0xc4d66de8.
+//
+// Solidity: function initialize(address _messenger) returns()
+func (_L1ERC721Bridge *L1ERC721BridgeTransactor) Initialize(opts *bind.TransactOpts, _messenger common.Address) (*types.Transaction, error) {
+	return _L1ERC721Bridge.contract.Transact(opts, "initialize", _messenger)
+}
+
+// Initialize is a paid mutator transaction binding the contract method 0xc4d66de8.
+//
+// Solidity: function initialize(address _messenger) returns()
+func (_L1ERC721Bridge *L1ERC721BridgeSession) Initialize(_messenger common.Address) (*types.Transaction, error) {
+	return _L1ERC721Bridge.Contract.Initialize(&_L1ERC721Bridge.TransactOpts, _messenger)
+}
+
+// Initialize is a paid mutator transaction binding the contract method 0xc4d66de8.
+//
+// Solidity: function initialize(address _messenger) returns()
+func (_L1ERC721Bridge *L1ERC721BridgeTransactorSession) Initialize(_messenger common.Address) (*types.Transaction, error) {
+	return _L1ERC721Bridge.Contract.Initialize(&_L1ERC721Bridge.TransactOpts, _messenger)
+}
+
 // L1ERC721BridgeERC721BridgeFinalizedIterator is returned from FilterERC721BridgeFinalized and is used to iterate over the raw logs and unpacked data for ERC721BridgeFinalized events raised by the L1ERC721Bridge contract.
 type L1ERC721BridgeERC721BridgeFinalizedIterator struct {
 	Event *L1ERC721BridgeERC721BridgeFinalized // Event containing the contract specifics and raw log
@@ -779,3 +800,137 @@ func (_L1ERC721Bridge *L1ERC721BridgeFilterer) ParseERC721BridgeInitiated(log ty
 	event.Raw = log
 	return event, nil
 }
+
+// L1ERC721BridgeInitializedIterator is returned from FilterInitialized and is used to iterate over the raw logs and unpacked data for Initialized events raised by the L1ERC721Bridge contract.
+type L1ERC721BridgeInitializedIterator struct {
+	Event *L1ERC721BridgeInitialized // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *L1ERC721BridgeInitializedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(L1ERC721BridgeInitialized)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(L1ERC721BridgeInitialized)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *L1ERC721BridgeInitializedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *L1ERC721BridgeInitializedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// L1ERC721BridgeInitialized represents a Initialized event raised by the L1ERC721Bridge contract.
+type L1ERC721BridgeInitialized struct {
+	Version uint8
+	Raw     types.Log // Blockchain specific contextual infos
+}
+
+// FilterInitialized is a free log retrieval operation binding the contract event 0x7f26b83ff96e1f2b6a682f133852f6798a09c465da95921460cefb3847402498.
+//
+// Solidity: event Initialized(uint8 version)
+func (_L1ERC721Bridge *L1ERC721BridgeFilterer) FilterInitialized(opts *bind.FilterOpts) (*L1ERC721BridgeInitializedIterator, error) {
+
+	logs, sub, err := _L1ERC721Bridge.contract.FilterLogs(opts, "Initialized")
+	if err != nil {
+		return nil, err
+	}
+	return &L1ERC721BridgeInitializedIterator{contract: _L1ERC721Bridge.contract, event: "Initialized", logs: logs, sub: sub}, nil
+}
+
+// WatchInitialized is a free log subscription operation binding the contract event 0x7f26b83ff96e1f2b6a682f133852f6798a09c465da95921460cefb3847402498.
+//
+// Solidity: event Initialized(uint8 version)
+func (_L1ERC721Bridge *L1ERC721BridgeFilterer) WatchInitialized(opts *bind.WatchOpts, sink chan<- *L1ERC721BridgeInitialized) (event.Subscription, error) {
+
+	logs, sub, err := _L1ERC721Bridge.contract.WatchLogs(opts, "Initialized")
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(L1ERC721BridgeInitialized)
+				if err := _L1ERC721Bridge.contract.UnpackLog(event, "Initialized", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseInitialized is a log parse operation binding the contract event 0x7f26b83ff96e1f2b6a682f133852f6798a09c465da95921460cefb3847402498.
+//
+// Solidity: event Initialized(uint8 version)
+func (_L1ERC721Bridge *L1ERC721BridgeFilterer) ParseInitialized(log types.Log) (*L1ERC721BridgeInitialized, error) {
+	event := new(L1ERC721BridgeInitialized)
+	if err := _L1ERC721Bridge.contract.UnpackLog(event, "Initialized", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}

op-bindings/bindings/l1erc721bridge_more.go

@@ -9,11 +9,11 @@ import (
 	"github.com/ethereum-optimism/optimism/op-bindings/solc"
 )
 
-const L1ERC721BridgeStorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"src/L1/L1ERC721Bridge.sol:L1ERC721Bridge\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":1001,\"contract\":\"src/L1/L1ERC721Bridge.sol:L1ERC721Bridge\",\"label\":\"deposits\",\"offset\":0,\"slot\":\"49\",\"type\":\"t_mapping(t_address,t_mapping(t_address,t_mapping(t_uint256,t_bool)))\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\",\"base\":\"t_uint256\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_mapping(t_address,t_mapping(t_address,t_mapping(t_uint256,t_bool)))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(address =\u003e mapping(uint256 =\u003e bool)))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_address,t_mapping(t_uint256,t_bool))\"},\"t_mapping(t_address,t_mapping(t_uint256,t_bool))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(uint256 =\u003e bool))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_uint256,t_bool)\"},\"t_mapping(t_uint256,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(uint256 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_uint256\",\"value\":\"t_bool\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"}}}"
+const L1ERC721BridgeStorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"src/L1/L1ERC721Bridge.sol:L1ERC721Bridge\",\"label\":\"_initialized\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_uint8\"},{\"astId\":1001,\"contract\":\"src/L1/L1ERC721Bridge.sol:L1ERC721Bridge\",\"label\":\"_initializing\",\"offset\":1,\"slot\":\"0\",\"type\":\"t_bool\"},{\"astId\":1002,\"contract\":\"src/L1/L1ERC721Bridge.sol:L1ERC721Bridge\",\"label\":\"messenger\",\"offset\":2,\"slot\":\"0\",\"type\":\"t_contract(CrossDomainMessenger)1005\"},{\"astId\":1003,\"contract\":\"src/L1/L1ERC721Bridge.sol:L1ERC721Bridge\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_array(t_uint256)48_storage\"},{\"astId\":1004,\"contract\":\"src/L1/L1ERC721Bridge.sol:L1ERC721Bridge\",\"label\":\"deposits\",\"offset\":0,\"slot\":\"49\",\"type\":\"t_mapping(t_address,t_mapping(t_address,t_mapping(t_uint256,t_bool)))\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_uint256)48_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[48]\",\"numberOfBytes\":\"1536\",\"base\":\"t_uint256\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_contract(CrossDomainMessenger)1005\":{\"encoding\":\"inplace\",\"label\":\"contract CrossDomainMessenger\",\"numberOfBytes\":\"20\"},\"t_mapping(t_address,t_mapping(t_address,t_mapping(t_uint256,t_bool)))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(address =\u003e mapping(uint256 =\u003e bool)))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_address,t_mapping(t_uint256,t_bool))\"},\"t_mapping(t_address,t_mapping(t_uint256,t_bool))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(uint256 =\u003e bool))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_uint256,t_bool)\"},\"t_mapping(t_uint256,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(uint256 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_uint256\",\"value\":\"t_bool\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint8\":{\"encoding\":\"inplace\",\"label\":\"uint8\",\"numberOfBytes\":\"1\"}}}"
 
 var L1ERC721BridgeStorageLayout = new(solc.StorageLayout)
 
-var L1ERC721BridgeDeployedBin = "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+var L1ERC721BridgeDeployedBin = "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
 func init() {
 	if err := json.Unmarshal([]byte(L1ERC721BridgeStorageLayoutJSON), L1ERC721BridgeStorageLayout); err != nil {

op-bindings/bindings/l2erc721bridge.go

@@ -30,8 +30,8 @@ var (
 
 // L2ERC721BridgeMetaData contains all meta data concerning the L2ERC721Bridge contract.
 var L2ERC721BridgeMetaData = &bind.MetaData{
-	ABI: "[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_messenger\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_otherBridge\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"localToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"remoteToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"ERC721BridgeFinalized\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"localToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"remoteToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"ERC721BridgeInitiated\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"MESSENGER\",\"outputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"OTHER_BRIDGE\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"uint32\",\"name\":\"_minGasLimit\",\"type\":\"uint32\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"bridgeERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"uint32\",\"name\":\"_minGasLimit\",\"type\":\"uint32\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"bridgeERC721To\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"finalizeBridgeERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"messenger\",\"outputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"otherBridge\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
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+	ABI: "[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_otherBridge\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"localToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"remoteToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"ERC721BridgeFinalized\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"localToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"remoteToken\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"extraData\",\"type\":\"bytes\"}],\"name\":\"ERC721BridgeInitiated\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint8\",\"name\":\"version\",\"type\":\"uint8\"}],\"name\":\"Initialized\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"MESSENGER\",\"outputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"OTHER_BRIDGE\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"uint32\",\"name\":\"_minGasLimit\",\"type\":\"uint32\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"bridgeERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"uint32\",\"name\":\"_minGasLimit\",\"type\":\"uint32\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"bridgeERC721To\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_localToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_remoteToken\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"_to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"_tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_extraData\",\"type\":\"bytes\"}],\"name\":\"finalizeBridgeERC721\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"_messenger\",\"type\":\"address\"}],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"messenger\",\"outputs\":[{\"internalType\":\"contractCrossDomainMessenger\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"otherBridge\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"}]",
+	Bin: 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 }
 
 // L2ERC721BridgeABI is the input ABI used to generate the binding from.
@@ -43,7 +43,7 @@ var L2ERC721BridgeABI = L2ERC721BridgeMetaData.ABI
 var L2ERC721BridgeBin = L2ERC721BridgeMetaData.Bin
 
 // DeployL2ERC721Bridge deploys a new Ethereum contract, binding an instance of L2ERC721Bridge to it.
-func DeployL2ERC721Bridge(auth *bind.TransactOpts, backend bind.ContractBackend, _messenger common.Address, _otherBridge common.Address) (common.Address, *types.Transaction, *L2ERC721Bridge, error) {
+func DeployL2ERC721Bridge(auth *bind.TransactOpts, backend bind.ContractBackend, _otherBridge common.Address) (common.Address, *types.Transaction, *L2ERC721Bridge, error) {
 	parsed, err := L2ERC721BridgeMetaData.GetAbi()
 	if err != nil {
 		return common.Address{}, nil, nil, err
@@ -52,7 +52,7 @@ func DeployL2ERC721Bridge(auth *bind.TransactOpts, backend bind.ContractBackend,
 		return common.Address{}, nil, nil, errors.New("GetABI returned nil")
 	}
 
-	address, tx, contract, err := bind.DeployContract(auth, *parsed, common.FromHex(L2ERC721BridgeBin), backend, _messenger, _otherBridge)
+	address, tx, contract, err := bind.DeployContract(auth, *parsed, common.FromHex(L2ERC721BridgeBin), backend, _otherBridge)
 	if err != nil {
 		return common.Address{}, nil, nil, err
 	}
@@ -419,6 +419,27 @@ func (_L2ERC721Bridge *L2ERC721BridgeTransactorSession) FinalizeBridgeERC721(_lo
 	return _L2ERC721Bridge.Contract.FinalizeBridgeERC721(&_L2ERC721Bridge.TransactOpts, _localToken, _remoteToken, _from, _to, _tokenId, _extraData)
 }
 
+// Initialize is a paid mutator transaction binding the contract method 0xc4d66de8.
+//
+// Solidity: function initialize(address _messenger) returns()
+func (_L2ERC721Bridge *L2ERC721BridgeTransactor) Initialize(opts *bind.TransactOpts, _messenger common.Address) (*types.Transaction, error) {
+	return _L2ERC721Bridge.contract.Transact(opts, "initialize", _messenger)
+}
+
+// Initialize is a paid mutator transaction binding the contract method 0xc4d66de8.
+//
+// Solidity: function initialize(address _messenger) returns()
+func (_L2ERC721Bridge *L2ERC721BridgeSession) Initialize(_messenger common.Address) (*types.Transaction, error) {
+	return _L2ERC721Bridge.Contract.Initialize(&_L2ERC721Bridge.TransactOpts, _messenger)
+}
+
+// Initialize is a paid mutator transaction binding the contract method 0xc4d66de8.
+//
+// Solidity: function initialize(address _messenger) returns()
+func (_L2ERC721Bridge *L2ERC721BridgeTransactorSession) Initialize(_messenger common.Address) (*types.Transaction, error) {
+	return _L2ERC721Bridge.Contract.Initialize(&_L2ERC721Bridge.TransactOpts, _messenger)
+}
+
 // L2ERC721BridgeERC721BridgeFinalizedIterator is returned from FilterERC721BridgeFinalized and is used to iterate over the raw logs and unpacked data for ERC721BridgeFinalized events raised by the L2ERC721Bridge contract.
 type L2ERC721BridgeERC721BridgeFinalizedIterator struct {
 	Event *L2ERC721BridgeERC721BridgeFinalized // Event containing the contract specifics and raw log
@@ -748,3 +769,137 @@ func (_L2ERC721Bridge *L2ERC721BridgeFilterer) ParseERC721BridgeInitiated(log ty
 	event.Raw = log
 	return event, nil
 }
+
+// L2ERC721BridgeInitializedIterator is returned from FilterInitialized and is used to iterate over the raw logs and unpacked data for Initialized events raised by the L2ERC721Bridge contract.
+type L2ERC721BridgeInitializedIterator struct {
+	Event *L2ERC721BridgeInitialized // Event containing the contract specifics and raw log
+
+	contract *bind.BoundContract // Generic contract to use for unpacking event data
+	event    string              // Event name to use for unpacking event data
+
+	logs chan types.Log        // Log channel receiving the found contract events
+	sub  ethereum.Subscription // Subscription for errors, completion and termination
+	done bool                  // Whether the subscription completed delivering logs
+	fail error                 // Occurred error to stop iteration
+}
+
+// Next advances the iterator to the subsequent event, returning whether there
+// are any more events found. In case of a retrieval or parsing error, false is
+// returned and Error() can be queried for the exact failure.
+func (it *L2ERC721BridgeInitializedIterator) Next() bool {
+	// If the iterator failed, stop iterating
+	if it.fail != nil {
+		return false
+	}
+	// If the iterator completed, deliver directly whatever's available
+	if it.done {
+		select {
+		case log := <-it.logs:
+			it.Event = new(L2ERC721BridgeInitialized)
+			if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+				it.fail = err
+				return false
+			}
+			it.Event.Raw = log
+			return true
+
+		default:
+			return false
+		}
+	}
+	// Iterator still in progress, wait for either a data or an error event
+	select {
+	case log := <-it.logs:
+		it.Event = new(L2ERC721BridgeInitialized)
+		if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
+			it.fail = err
+			return false
+		}
+		it.Event.Raw = log
+		return true
+
+	case err := <-it.sub.Err():
+		it.done = true
+		it.fail = err
+		return it.Next()
+	}
+}
+
+// Error returns any retrieval or parsing error occurred during filtering.
+func (it *L2ERC721BridgeInitializedIterator) Error() error {
+	return it.fail
+}
+
+// Close terminates the iteration process, releasing any pending underlying
+// resources.
+func (it *L2ERC721BridgeInitializedIterator) Close() error {
+	it.sub.Unsubscribe()
+	return nil
+}
+
+// L2ERC721BridgeInitialized represents a Initialized event raised by the L2ERC721Bridge contract.
+type L2ERC721BridgeInitialized struct {
+	Version uint8
+	Raw     types.Log // Blockchain specific contextual infos
+}
+
+// FilterInitialized is a free log retrieval operation binding the contract event 0x7f26b83ff96e1f2b6a682f133852f6798a09c465da95921460cefb3847402498.
+//
+// Solidity: event Initialized(uint8 version)
+func (_L2ERC721Bridge *L2ERC721BridgeFilterer) FilterInitialized(opts *bind.FilterOpts) (*L2ERC721BridgeInitializedIterator, error) {
+
+	logs, sub, err := _L2ERC721Bridge.contract.FilterLogs(opts, "Initialized")
+	if err != nil {
+		return nil, err
+	}
+	return &L2ERC721BridgeInitializedIterator{contract: _L2ERC721Bridge.contract, event: "Initialized", logs: logs, sub: sub}, nil
+}
+
+// WatchInitialized is a free log subscription operation binding the contract event 0x7f26b83ff96e1f2b6a682f133852f6798a09c465da95921460cefb3847402498.
+//
+// Solidity: event Initialized(uint8 version)
+func (_L2ERC721Bridge *L2ERC721BridgeFilterer) WatchInitialized(opts *bind.WatchOpts, sink chan<- *L2ERC721BridgeInitialized) (event.Subscription, error) {
+
+	logs, sub, err := _L2ERC721Bridge.contract.WatchLogs(opts, "Initialized")
+	if err != nil {
+		return nil, err
+	}
+	return event.NewSubscription(func(quit <-chan struct{}) error {
+		defer sub.Unsubscribe()
+		for {
+			select {
+			case log := <-logs:
+				// New log arrived, parse the event and forward to the user
+				event := new(L2ERC721BridgeInitialized)
+				if err := _L2ERC721Bridge.contract.UnpackLog(event, "Initialized", log); err != nil {
+					return err
+				}
+				event.Raw = log
+
+				select {
+				case sink <- event:
+				case err := <-sub.Err():
+					return err
+				case <-quit:
+					return nil
+				}
+			case err := <-sub.Err():
+				return err
+			case <-quit:
+				return nil
+			}
+		}
+	}), nil
+}
+
+// ParseInitialized is a log parse operation binding the contract event 0x7f26b83ff96e1f2b6a682f133852f6798a09c465da95921460cefb3847402498.
+//
+// Solidity: event Initialized(uint8 version)
+func (_L2ERC721Bridge *L2ERC721BridgeFilterer) ParseInitialized(log types.Log) (*L2ERC721BridgeInitialized, error) {
+	event := new(L2ERC721BridgeInitialized)
+	if err := _L2ERC721Bridge.contract.UnpackLog(event, "Initialized", log); err != nil {
+		return nil, err
+	}
+	event.Raw = log
+	return event, nil
+}

op-bindings/bindings/l2erc721bridge_more.go

@@ -9,11 +9,11 @@ import (
 	"github.com/ethereum-optimism/optimism/op-bindings/solc"
 )
 
-const L2ERC721BridgeStorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"src/L2/L2ERC721Bridge.sol:L2ERC721Bridge\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_array(t_uint256)49_storage\"}],\"types\":{\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\",\"base\":\"t_uint256\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"}}}"
+const L2ERC721BridgeStorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"src/L2/L2ERC721Bridge.sol:L2ERC721Bridge\",\"label\":\"_initialized\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_uint8\"},{\"astId\":1001,\"contract\":\"src/L2/L2ERC721Bridge.sol:L2ERC721Bridge\",\"label\":\"_initializing\",\"offset\":1,\"slot\":\"0\",\"type\":\"t_bool\"},{\"astId\":1002,\"contract\":\"src/L2/L2ERC721Bridge.sol:L2ERC721Bridge\",\"label\":\"messenger\",\"offset\":2,\"slot\":\"0\",\"type\":\"t_contract(CrossDomainMessenger)1004\"},{\"astId\":1003,\"contract\":\"src/L2/L2ERC721Bridge.sol:L2ERC721Bridge\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_array(t_uint256)48_storage\"}],\"types\":{\"t_array(t_uint256)48_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[48]\",\"numberOfBytes\":\"1536\",\"base\":\"t_uint256\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_contract(CrossDomainMessenger)1004\":{\"encoding\":\"inplace\",\"label\":\"contract CrossDomainMessenger\",\"numberOfBytes\":\"20\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint8\":{\"encoding\":\"inplace\",\"label\":\"uint8\",\"numberOfBytes\":\"1\"}}}"
 
 var L2ERC721BridgeStorageLayout = new(solc.StorageLayout)
 
-var L2ERC721BridgeDeployedBin = "0x608060405234801561001057600080fd5b50600436106100885760003560e01c80637f46ddb21161005b5780637f46ddb214610116578063927ede2d1461013d578063aa55745214610164578063c89701a21461017757600080fd5b80633687011a1461008d5780633cb747bf146100a257806354fd4d50146100ee578063761f449314610103575b600080fd5b6100a061009b3660046111c8565b61019d565b005b7f00000000000000000000000000000000000000000000000000000000000000005b60405173ffffffffffffffffffffffffffffffffffffffff90911681526020015b60405180910390f35b6100f6610249565b6040516100e591906112c5565b6100a06101113660046112d8565b6102ec565b6100c47f000000000000000000000000000000000000000000000000000000000000000081565b6100c47f000000000000000000000000000000000000000000000000000000000000000081565b6100a0610172366004611370565b610853565b7f00000000000000000000000000000000000000000000000000000000000000006100c4565b333b15610231576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152602d60248201527f4552433732314272696467653a206163636f756e74206973206e6f742065787460448201527f65726e616c6c79206f776e65640000000000000000000000000000000000000060648201526084015b60405180910390fd5b610241868633338888888861090f565b505050505050565b60606102747f0000000000000000000000000000000000000000000000000000000000000000610ead565b61029d7f0000000000000000000000000000000000000000000000000000000000000000610ead565b6102c67f0000000000000000000000000000000000000000000000000000000000000000610ead565b6040516020016102d8939291906113e7565b604051602081830303815290604052905090565b3373ffffffffffffffffffffffffffffffffffffffff7f00000000000000000000000000000000000000000000000000000000000000001614801561040a57507f000000000000000000000000000000000000000000000000000000000000000073ffffffffffffffffffffffffffffffffffffffff167f000000000000000000000000000000000000000000000000000000000000000073ffffffffffffffffffffffffffffffffffffffff16636e296e456040518163ffffffff1660e01b8152600401602060405180830381865afa1580156103ce573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906103f2919061145d565b73ffffffffffffffffffffffffffffffffffffffff16145b610496576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152603f60248201527f4552433732314272696467653a2066756e6374696f6e2063616e206f6e6c792060448201527f62652063616c6c65642066726f6d20746865206f7468657220627269646765006064820152608401610228565b3073ffffffffffffffffffffffffffffffffffffffff88160361053b576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152602a60248201527f4c324552433732314272696467653a206c6f63616c20746f6b656e2063616e6e60448201527f6f742062652073656c66000000000000000000000000000000000000000000006064820152608401610228565b610565877f74259ebf00000000000000000000000000000000000000000000000000000000610fea565b6105f1576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152603660248201527f4c324552433732314272696467653a206c6f63616c20746f6b656e20696e746560448201527f7266616365206973206e6f7420636f6d706c69616e74000000000000000000006064820152608401610228565b8673ffffffffffffffffffffffffffffffffffffffff1663d6c0b2c46040518163ffffffff1660e01b8152600401602060405180830381865afa15801561063c573d6000803e3d6000fd5b505050506040513d601f19601f82011682018060405250810190610660919061145d565b73ffffffffffffffffffffffffffffffffffffffff168673ffffffffffffffffffffffffffffffffffffffff1614610740576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152604b60248201527f4c324552433732314272696467653a2077726f6e672072656d6f746520746f6b60448201527f656e20666f72204f7074696d69736d204d696e7461626c65204552433732312060648201527f6c6f63616c20746f6b656e000000000000000000000000000000000000000000608482015260a401610228565b6040517fa144819400000000000000000000000000000000000000000000000000000000815273ffffffffffffffffffffffffffffffffffffffff85811660048301526024820185905288169063a144819490604401600060405180830381600087803b1580156107b057600080fd5b505af11580156107c4573d6000803e3d6000fd5b505050508473ffffffffffffffffffffffffffffffffffffffff168673ffffffffffffffffffffffffffffffffffffffff168873ffffffffffffffffffffffffffffffffffffffff167f1f39bf6707b5d608453e0ae4c067b562bcc4c85c0f562ef5d2c774d2e7f131ac8787878760405161084294939291906114c3565b60405180910390a450505050505050565b73ffffffffffffffffffffffffffffffffffffffff85166108f6576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152603060248201527f4552433732314272696467653a206e667420726563697069656e742063616e6e60448201527f6f742062652061646472657373283029000000000000000000000000000000006064820152608401610228565b610906878733888888888861090f565b50505050505050565b73ffffffffffffffffffffffffffffffffffffffff87166109b2576040517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152603160248201527f4c324552433732314272696467653a2072656d6f746520746f6b656e2063616e60448201527f6e6f7420626520616464726573732830290000000000000000000000000000006064820152608401610228565b6040517f6352211e000000000000000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+var L2ERC721BridgeDeployedBin = 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
 func init() {
 	if err := json.Unmarshal([]byte(L2ERC721BridgeStorageLayoutJSON), L2ERC721BridgeStorageLayout); err != nil {

op-chain-ops/genesis/config.go

@@ -690,6 +690,11 @@ func NewL2StorageConfig(config *DeployConfig, block *types.Block) (state.Storage
 	storage["ProxyAdmin"] = state.StorageValues{
 		"_owner": config.ProxyAdminOwner,
 	}
+	storage["L2ERC721Bridge"] = state.StorageValues{
+		"messenger":     predeploys.L2CrossDomainMessengerAddr,
+		"_initialized":  2,
+		"_initializing": false,
+	}
 	return storage, nil
 }
 

op-chain-ops/immutables/immutables.go

@@ -131,7 +131,6 @@ func BuildOptimism(immutable ImmutableConfig) (DeploymentResults, error) {
 		{
 			Name: "L2ERC721Bridge",
 			Args: []interface{}{
-				predeploys.L2CrossDomainMessengerAddr,
 				immutable["L2ERC721Bridge"]["otherBridge"],
 			},
 		},
@@ -225,16 +224,11 @@ func l2Deployer(backend *backends.SimulatedBackend, opts *bind.TransactOpts, dep
 	case "L1BlockNumber":
 		_, tx, _, err = bindings.DeployL1BlockNumber(opts, backend)
 	case "L2ERC721Bridge":
-		// TODO(tynes): messenger should be hardcoded in the contract
-		messenger, ok := deployment.Args[0].(common.Address)
-		if !ok {
-			return nil, fmt.Errorf("invalid type for messenger")
-		}
-		otherBridge, ok := deployment.Args[1].(common.Address)
+		otherBridge, ok := deployment.Args[0].(common.Address)
 		if !ok {
 			return nil, fmt.Errorf("invalid type for otherBridge")
 		}
-		_, tx, _, err = bindings.DeployL2ERC721Bridge(opts, backend, messenger, otherBridge)
+		_, tx, _, err = bindings.DeployL2ERC721Bridge(opts, backend, otherBridge)
 	case "OptimismMintableERC721Factory":
 		bridge, ok := deployment.Args[0].(common.Address)
 		if !ok {

packages/contracts-bedrock/.gas-snapshot

@@ -175,21 +175,21 @@ L1CrossDomainMessenger_Test:test_sendMessage_succeeds() (gas: 392873)
 L1CrossDomainMessenger_Test:test_sendMessage_twice_succeeds() (gas: 1668908)
 L1CrossDomainMessenger_Test:test_xDomainMessageSender_reset_succeeds() (gas: 87043)
 L1CrossDomainMessenger_Test:test_xDomainSender_notSet_reverts() (gas: 24253)
-L1ERC721Bridge_Test:test_bridgeERC721To_localTokenZeroAddress_reverts() (gas: 52707)
-L1ERC721Bridge_Test:test_bridgeERC721To_remoteTokenZeroAddress_reverts() (gas: 27288)
-L1ERC721Bridge_Test:test_bridgeERC721To_succeeds() (gas: 447448)
-L1ERC721Bridge_Test:test_bridgeERC721To_wrongOwner_reverts() (gas: 61000)
-L1ERC721Bridge_Test:test_bridgeERC721_fromContract_reverts() (gas: 25666)
-L1ERC721Bridge_Test:test_bridgeERC721_localTokenZeroAddress_reverts() (gas: 50564)
-L1ERC721Bridge_Test:test_bridgeERC721_remoteTokenZeroAddress_reverts() (gas: 25189)
-L1ERC721Bridge_Test:test_bridgeERC721_succeeds() (gas: 445006)
-L1ERC721Bridge_Test:test_bridgeERC721_wrongOwner_reverts() (gas: 60808)
-L1ERC721Bridge_Test:test_constructor_succeeds() (gas: 10178)
-L1ERC721Bridge_Test:test_finalizeBridgeERC721_notEscrowed_reverts() (gas: 22097)
-L1ERC721Bridge_Test:test_finalizeBridgeERC721_notFromRemoteMessenger_reverts() (gas: 19842)
-L1ERC721Bridge_Test:test_finalizeBridgeERC721_notViaLocalMessenger_reverts() (gas: 16049)
-L1ERC721Bridge_Test:test_finalizeBridgeERC721_selfToken_reverts() (gas: 17615)
-L1ERC721Bridge_Test:test_finalizeBridgeERC721_succeeds() (gas: 416540)
+L1ERC721Bridge_Test:test_bridgeERC721To_localTokenZeroAddress_reverts() (gas: 62677)
+L1ERC721Bridge_Test:test_bridgeERC721To_remoteTokenZeroAddress_reverts() (gas: 37273)
+L1ERC721Bridge_Test:test_bridgeERC721To_succeeds() (gas: 455035)
+L1ERC721Bridge_Test:test_bridgeERC721To_wrongOwner_reverts() (gas: 70985)
+L1ERC721Bridge_Test:test_bridgeERC721_fromContract_reverts() (gas: 35669)
+L1ERC721Bridge_Test:test_bridgeERC721_localTokenZeroAddress_reverts() (gas: 60552)
+L1ERC721Bridge_Test:test_bridgeERC721_remoteTokenZeroAddress_reverts() (gas: 35192)
+L1ERC721Bridge_Test:test_bridgeERC721_succeeds() (gas: 454732)
+L1ERC721Bridge_Test:test_bridgeERC721_wrongOwner_reverts() (gas: 70811)
+L1ERC721Bridge_Test:test_constructor_succeeds() (gas: 18861)
+L1ERC721Bridge_Test:test_finalizeBridgeERC721_notEscrowed_reverts() (gas: 29472)
+L1ERC721Bridge_Test:test_finalizeBridgeERC721_notFromRemoteMessenger_reverts() (gas: 27217)
+L1ERC721Bridge_Test:test_finalizeBridgeERC721_notViaLocalMessenger_reverts() (gas: 23238)
+L1ERC721Bridge_Test:test_finalizeBridgeERC721_selfToken_reverts() (gas: 24990)
+L1ERC721Bridge_Test:test_finalizeBridgeERC721_succeeds() (gas: 425008)
 L1StandardBridge_BridgeETHTo_Test:test_bridgeETHTo_succeeds() (gas: 514624)
 L1StandardBridge_BridgeETH_Test:test_bridgeETH_succeeds() (gas: 501802)
 L1StandardBridge_DepositERC20To_Test:test_depositERC20To_succeeds() (gas: 720128)
@@ -219,22 +219,22 @@ L2CrossDomainMessenger_Test:test_sendMessage_succeeds() (gas: 123768)
 L2CrossDomainMessenger_Test:test_sendMessage_twice_succeeds() (gas: 135434)
 L2CrossDomainMessenger_Test:test_xDomainMessageSender_reset_succeeds() (gas: 48422)
 L2CrossDomainMessenger_Test:test_xDomainSender_senderNotSet_reverts() (gas: 10590)
-L2ERC721Bridge_Test:test_bridgeERC721To_localTokenZeroAddress_reverts() (gas: 26431)
-L2ERC721Bridge_Test:test_bridgeERC721To_remoteTokenZeroAddress_reverts() (gas: 21814)
-L2ERC721Bridge_Test:test_bridgeERC721To_succeeds() (gas: 147356)
-L2ERC721Bridge_Test:test_bridgeERC721To_wrongOwner_reverts() (gas: 29449)
-L2ERC721Bridge_Test:test_bridgeERC721_fromContract_reverts() (gas: 22170)
-L2ERC721Bridge_Test:test_bridgeERC721_localTokenZeroAddress_reverts() (gas: 24310)
-L2ERC721Bridge_Test:test_bridgeERC721_remoteTokenZeroAddress_reverts() (gas: 19628)
-L2ERC721Bridge_Test:test_bridgeERC721_succeeds() (gas: 144958)
-L2ERC721Bridge_Test:test_bridgeERC721_wrongOwner_reverts() (gas: 29258)
-L2ERC721Bridge_Test:test_constructor_succeeds() (gas: 10110)
-L2ERC721Bridge_Test:test_finalizeBridgeERC721_alreadyExists_reverts() (gas: 29218)
-L2ERC721Bridge_Test:test_finalizeBridgeERC721_interfaceNotCompliant_reverts() (gas: 236327)
-L2ERC721Bridge_Test:test_finalizeBridgeERC721_notFromRemoteMessenger_reverts() (gas: 19874)
-L2ERC721Bridge_Test:test_finalizeBridgeERC721_notViaLocalMessenger_reverts() (gas: 16126)
-L2ERC721Bridge_Test:test_finalizeBridgeERC721_selfToken_reverts() (gas: 17681)
-L2ERC721Bridge_Test:test_finalizeBridgeERC721_succeeds() (gas: 169375)
+L2ERC721Bridge_Test:test_bridgeERC721To_localTokenZeroAddress_reverts() (gas: 31428)
+L2ERC721Bridge_Test:test_bridgeERC721To_remoteTokenZeroAddress_reverts() (gas: 26826)
+L2ERC721Bridge_Test:test_bridgeERC721To_succeeds() (gas: 156582)
+L2ERC721Bridge_Test:test_bridgeERC721To_wrongOwner_reverts() (gas: 34461)
+L2ERC721Bridge_Test:test_bridgeERC721_fromContract_reverts() (gas: 27177)
+L2ERC721Bridge_Test:test_bridgeERC721_localTokenZeroAddress_reverts() (gas: 29302)
+L2ERC721Bridge_Test:test_bridgeERC721_remoteTokenZeroAddress_reverts() (gas: 24635)
+L2ERC721Bridge_Test:test_bridgeERC721_succeeds() (gas: 154197)
+L2ERC721Bridge_Test:test_bridgeERC721_wrongOwner_reverts() (gas: 34265)
+L2ERC721Bridge_Test:test_constructor_succeeds() (gas: 21027)
+L2ERC721Bridge_Test:test_finalizeBridgeERC721_alreadyExists_reverts() (gas: 38658)
+L2ERC721Bridge_Test:test_finalizeBridgeERC721_interfaceNotCompliant_reverts() (gas: 246385)
+L2ERC721Bridge_Test:test_finalizeBridgeERC721_notFromRemoteMessenger_reverts() (gas: 27205)
+L2ERC721Bridge_Test:test_finalizeBridgeERC721_notViaLocalMessenger_reverts() (gas: 23271)
+L2ERC721Bridge_Test:test_finalizeBridgeERC721_selfToken_reverts() (gas: 27124)
+L2ERC721Bridge_Test:test_finalizeBridgeERC721_succeeds() (gas: 179424)
 L2OutputOracleUpgradeable_Test:test_initValuesOnImpl_succeeds() (gas: 23902)
 L2OutputOracleUpgradeable_Test:test_initValuesOnProxy_succeeds() (gas: 46800)
 L2OutputOracleUpgradeable_Test:test_initializeImpl_alreadyInitialized_reverts() (gas: 15216)

packages/contracts-bedrock/scripts/Deploy.s.sol

@@ -435,14 +435,9 @@ contract Deploy is Deployer {
 
     /// @notice Deploy the L1ERC721Bridge
     function deployL1ERC721Bridge() broadcast() public returns (address) {
-        address l1CrossDomainMessengerProxy = mustGetAddress("L1CrossDomainMessengerProxy");
-
-        L1ERC721Bridge bridge = new L1ERC721Bridge({
-            _messenger: l1CrossDomainMessengerProxy,
-            _otherBridge: Predeploys.L2_ERC721_BRIDGE
-        });
+        L1ERC721Bridge bridge = new L1ERC721Bridge();
 
-        require(address(bridge.MESSENGER()) == l1CrossDomainMessengerProxy);
+        require(address(bridge.MESSENGER()) == address(0));
         require(bridge.OTHER_BRIDGE() == Predeploys.L2_ERC721_BRIDGE);
 
         save("L1ERC721Bridge", address(bridge));
@@ -574,9 +569,13 @@ contract Deploy is Deployer {
         address l1ERC721Bridge = mustGetAddress("L1ERC721Bridge");
         address l1CrossDomainMessengerProxy = mustGetAddress("L1CrossDomainMessengerProxy");
 
-        proxyAdmin.upgrade({
+        proxyAdmin.upgradeAndCall({
             _proxy: payable(l1ERC721BridgeProxy),
-            _implementation: l1ERC721Bridge
+            _implementation: l1ERC721Bridge,
+            _data: abi.encodeCall(
+                L1ERC721Bridge.initialize,
+                (L1CrossDomainMessenger(l1CrossDomainMessengerProxy))
+            )
         });
 
         L1ERC721Bridge bridge = L1ERC721Bridge(l1ERC721BridgeProxy);

packages/contracts-bedrock/semver-lock.json

 {
   "src/L1/L1CrossDomainMessenger.sol": "0x2b276f14475869cfd81868b03dc72b91dd726a787c9568caf4849fe34830b207",
-  "src/L1/L1ERC721Bridge.sol": "0xac9d8e236a1b35c358f9800834f65375cf4270155e817cf3d0f2bac1968f9107",
+  "src/L1/L1ERC721Bridge.sol": "0xd91d437fc1dfd46c5b2987da6b8aa9fb0be8d8b3add0148a587f49839f27562b",
   "src/L1/L1StandardBridge.sol": "0xa35dc0ab143043063c3bff73c8b065e401c23296a2017258ce8a87f4a4da9416",
   "src/L1/L2OutputOracle.sol": "0x8f32ccb4c5cb63a459a0e79ee412177dc03fd279fdaaf1dac69e8c714902e857",
   "src/L1/OptimismPortal.sol": "0xeaa47a63e8a3bcfdb7dfd3e6c8608369e34e362d9de82f3acf13cbc27c070bf7",
@@ -10,7 +10,7 @@
   "src/L2/L1Block.sol": "0x7fbfc8b4da630386636c665570321fdec287b0867dbe0f91c2e7cd5b7697c220",
   "src/L2/L1FeeVault.sol": "0x62bfe739ff939fc68f90916399ac4160936d31eb37749cb014dd9d0c5dd4183a",
   "src/L2/L2CrossDomainMessenger.sol": "0xc9641981f7aa79f44b5925100027098d8f76c6178c65aca99fafa859289182be",
-  "src/L2/L2ERC721Bridge.sol": "0x2b30a48241787580918a6ce4263823c036a21bde9cd80cc38d9beb6626c4f93b",
+  "src/L2/L2ERC721Bridge.sol": "0xebb5b09f5f8ee70e0980c70ba8163ca3144bc2f30c38235de3e8425c7fee5b6a",
   "src/L2/L2StandardBridge.sol": "0x67e202bc6751807b20a98b88b0b65bdff30420bf1e71f2c1c7948de448cfcdc0",
   "src/L2/L2ToL1MessagePasser.sol": "0xed800b600cb3f67e18a1ab10750e3934a8b3e42178f422bcacfde770a6e8e8bd",
   "src/L2/SequencerFeeVault.sol": "0xd57c143b1f042400430b991b806bf971628e6980406c751e82d19ae80eeb4e8d",

packages/contracts-bedrock/src/L1/L1ERC721Bridge.sol

@@ -5,6 +5,8 @@ import { ERC721Bridge } from "../universal/ERC721Bridge.sol";
 import { IERC721 } from "@openzeppelin/contracts/token/ERC721/IERC721.sol";
 import { L2ERC721Bridge } from "../L2/L2ERC721Bridge.sol";
 import { Semver } from "../universal/Semver.sol";
+import { Predeploys } from "../libraries/Predeploys.sol";
+import { CrossDomainMessenger } from "../universal/CrossDomainMessenger.sol";
 
 /// @title L1ERC721Bridge
 /// @notice The L1 ERC721 bridge is a contract which works together with the L2 ERC721 bridge to
@@ -15,14 +17,17 @@ contract L1ERC721Bridge is ERC721Bridge, Semver {
     ///         by ID was deposited for a given L2 token.
     mapping(address => mapping(address => mapping(uint256 => bool))) public deposits;
 
-    /// @custom:semver 1.1.2
-    /// @notice Constructs the L1ERC721Bridge contract.
+    /// @custom:semver 1.2.0
+    /// @notice Constructs the contract.
+    constructor() Semver(1, 2, 0) ERC721Bridge(Predeploys.L2_ERC721_BRIDGE) {
+        initialize({ _messenger: CrossDomainMessenger(address(0)) });
+    }
+
+    /// @notice Initializes the contract.
     /// @param _messenger   Address of the CrossDomainMessenger on this network.
-    /// @param _otherBridge Address of the ERC721 bridge on the other network.
-    constructor(address _messenger, address _otherBridge)
-        Semver(1, 1, 2)
-        ERC721Bridge(_messenger, _otherBridge)
-    {}
+    function initialize(CrossDomainMessenger _messenger) public reinitializer(2) {
+        __ERC721Bridge_init({ _messenger: _messenger });
+    }
 
     /// @notice Completes an ERC721 bridge from the other domain and sends the ERC721 token to the
     ///         recipient on this domain.
@@ -90,7 +95,7 @@ contract L1ERC721Bridge is ERC721Bridge, Semver {
         IERC721(_localToken).transferFrom(_from, address(this), _tokenId);
 
         // Send calldata into L2
-        MESSENGER.sendMessage(OTHER_BRIDGE, message, _minGasLimit);
+        messenger.sendMessage(OTHER_BRIDGE, message, _minGasLimit);
         emit ERC721BridgeInitiated(_localToken, _remoteToken, _from, _to, _tokenId, _extraData);
     }
 }

packages/contracts-bedrock/src/L2/L2ERC721Bridge.sol

@@ -5,6 +5,7 @@ import { ERC721Bridge } from "../universal/ERC721Bridge.sol";
 import { ERC165Checker } from "@openzeppelin/contracts/utils/introspection/ERC165Checker.sol";
 import { L1ERC721Bridge } from "../L1/L1ERC721Bridge.sol";
 import { IOptimismMintableERC721 } from "../universal/IOptimismMintableERC721.sol";
+import { CrossDomainMessenger } from "../universal/CrossDomainMessenger.sol";
 import { Semver } from "../universal/Semver.sol";
 
 /// @title L2ERC721Bridge
@@ -17,14 +18,18 @@ import { Semver } from "../universal/Semver.sol";
 ///         wait for the one-week challenge period to elapse before their Optimism-native NFT
 ///         can be refunded on L2.
 contract L2ERC721Bridge is ERC721Bridge, Semver {
-    /// @custom:semver 1.1.1
+    /// @custom:semver 1.2.0
     /// @notice Constructs the L2ERC721Bridge contract.
-    /// @param _messenger   Address of the CrossDomainMessenger on this network.
     /// @param _otherBridge Address of the ERC721 bridge on the other network.
-    constructor(address _messenger, address _otherBridge)
-        Semver(1, 1, 1)
-        ERC721Bridge(_messenger, _otherBridge)
-    {}
+    constructor(address _otherBridge) Semver(1, 2, 0) ERC721Bridge(_otherBridge) {
+        initialize({ _messenger: CrossDomainMessenger(address(0)) });
+    }
+
+    /// @notice Initializes the contract.
+    /// @param _messenger   Address of the CrossDomainMessenger on this network.
+    function initialize(CrossDomainMessenger _messenger) public reinitializer(2) {
+        __ERC721Bridge_init({ _messenger: _messenger });
+    }
 
     /// @notice Completes an ERC721 bridge from the other domain and sends the ERC721 token to the
     ///         recipient on this domain.
@@ -109,7 +114,7 @@ contract L2ERC721Bridge is ERC721Bridge, Semver {
 
         // Send message to L1 bridge
         // slither-disable-next-line reentrancy-events
-        MESSENGER.sendMessage(OTHER_BRIDGE, message, _minGasLimit);
+        messenger.sendMessage(OTHER_BRIDGE, message, _minGasLimit);
 
         // slither-disable-next-line reentrancy-events
         emit ERC721BridgeInitiated(_localToken, remoteToken, _from, _to, _tokenId, _extraData);

packages/contracts-bedrock/src/universal/ERC721Bridge.sol

@@ -3,18 +3,21 @@ pragma solidity 0.8.15;
 
 import { CrossDomainMessenger } from "./CrossDomainMessenger.sol";
 import { Address } from "@openzeppelin/contracts/utils/Address.sol";
+import { Initializable } from "@openzeppelin/contracts/proxy/utils/Initializable.sol";
 
 /// @title ERC721Bridge
 /// @notice ERC721Bridge is a base contract for the L1 and L2 ERC721 bridges.
-abstract contract ERC721Bridge {
+abstract contract ERC721Bridge is Initializable {
     /// @notice Messenger contract on this domain.
-    CrossDomainMessenger public immutable MESSENGER;
+    /// @custom:network-specific
+    CrossDomainMessenger public messenger;
 
     /// @notice Address of the bridge on the other network.
+    /// @custom:legacy
     address public immutable OTHER_BRIDGE;
 
     /// @notice Reserve extra slots (to a total of 50) in the storage layout for future upgrades.
-    uint256[49] private __gap;
+    uint256[48] private __gap;
 
     /// @notice Emitted when an ERC721 bridge to the other network is initiated.
     /// @param localToken  Address of the token on this domain.
@@ -51,31 +54,31 @@ abstract contract ERC721Bridge {
     /// @notice Ensures that the caller is a cross-chain message from the other bridge.
     modifier onlyOtherBridge() {
         require(
-            msg.sender == address(MESSENGER) && MESSENGER.xDomainMessageSender() == OTHER_BRIDGE,
+            msg.sender == address(messenger) && messenger.xDomainMessageSender() == OTHER_BRIDGE,
             "ERC721Bridge: function can only be called from the other bridge"
         );
         _;
     }
 
-    /// @param _messenger   Address of the CrossDomainMessenger on this network.
+    /// @notice Constructs the contract.
     /// @param _otherBridge Address of the ERC721 bridge on the other network.
-    constructor(address _messenger, address _otherBridge) {
-        require(_messenger != address(0), "ERC721Bridge: messenger cannot be address(0)");
+    constructor(address _otherBridge) {
         require(_otherBridge != address(0), "ERC721Bridge: other bridge cannot be address(0)");
-
-        MESSENGER = CrossDomainMessenger(_messenger);
         OTHER_BRIDGE = _otherBridge;
     }
 
-    /// @custom:legacy
-    /// @notice Legacy getter for messenger contract.
-    /// @return Messenger contract on this domain.
-    function messenger() external view returns (CrossDomainMessenger) {
-        return MESSENGER;
+    // @notice Initializes the contract.
+    /// @param _messenger   Address of the CrossDomainMessenger on this network.
+    function __ERC721Bridge_init(CrossDomainMessenger _messenger) internal onlyInitializing {
+        messenger = _messenger;
     }
 
-    /// @custom:legacy
-    /// @notice Legacy getter for other bridge address.
+    /// @notice Getter for messenger contract.
+    function MESSENGER() external view returns (CrossDomainMessenger) {
+        return messenger;
+    }
+
+    /// @notice Getter for other bridge address.
     /// @return Address of the bridge on the other network.
     function otherBridge() external view returns (address) {
         return OTHER_BRIDGE;

packages/contracts-bedrock/test/CommonTest.t.sol

@@ -29,6 +29,7 @@ import { ResolvedDelegateProxy } from "../src/legacy/ResolvedDelegateProxy.sol";
 import { AddressManager } from "../src/legacy/AddressManager.sol";
 import { L1ChugSplashProxy } from "../src/legacy/L1ChugSplashProxy.sol";
 import { IL1ChugSplashDeployer } from "../src/legacy/L1ChugSplashProxy.sol";
+import { CrossDomainMessenger } from "../src/universal/CrossDomainMessenger.sol";
 import { Strings } from "@openzeppelin/contracts/utils/Strings.sol";
 import { LegacyMintableERC20 } from "../src/legacy/LegacyMintableERC20.sol";
 import { SystemConfig } from "../src/L1/SystemConfig.sol";
@@ -499,13 +500,33 @@ contract ERC721Bridge_Initializer is Messenger_Initializer {
         super.setUp();
 
         // Deploy the L1ERC721Bridge.
-        L1Bridge = new L1ERC721Bridge(address(L1Messenger), Predeploys.L2_ERC721_BRIDGE);
+        L1ERC721Bridge l1BridgeImpl = new L1ERC721Bridge();
+        Proxy l1BridgeProxy = new Proxy(multisig);
+
+        vm.prank(multisig);
+        l1BridgeProxy.upgradeToAndCall(
+            address(l1BridgeImpl),
+            abi.encodeCall(
+                L1ERC721Bridge.initialize,
+                (CrossDomainMessenger(L1Messenger))
+            )
+        );
+
+        L1Bridge = L1ERC721Bridge(address(l1BridgeProxy));
 
         // Deploy the implementation for the L2ERC721Bridge and etch it into the predeploy address.
-        vm.etch(
-            Predeploys.L2_ERC721_BRIDGE,
-            address(new L2ERC721Bridge(Predeploys.L2_CROSS_DOMAIN_MESSENGER, address(L1Bridge)))
-                .code
+        L2ERC721Bridge l2BridgeImpl = new L2ERC721Bridge(address(L1Bridge));
+        Proxy l2BridgeProxy = new Proxy(multisig);
+        vm.etch(Predeploys.L2_ERC721_BRIDGE, address(l2BridgeProxy).code);
+
+        // set the storage slot for admin
+        bytes32 OWNER_KEY = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
+        vm.store(Predeploys.L2_ERC721_BRIDGE, OWNER_KEY, bytes32(uint256(uint160(multisig))));
+
+        vm.prank(multisig);
+        Proxy(payable(Predeploys.L2_ERC721_BRIDGE)).upgradeToAndCall(
+            address(l2BridgeImpl),
+            abi.encodeCall(L2ERC721Bridge.initialize, (L2Messenger))
         );
 
         // Set up a reference to the L2ERC721Bridge.

packages/contracts-bedrock/test/L1ERC721Bridge.t.sol

@@ -2,11 +2,12 @@
 pragma solidity 0.8.15;
 
 // Testing utilities
-import { Messenger_Initializer } from "./CommonTest.t.sol";
+import { ERC721Bridge_Initializer } from "./CommonTest.t.sol";
 import { ERC721 } from "@openzeppelin/contracts/token/ERC721/ERC721.sol";
 
 // Target contract dependencies
 import { L2ERC721Bridge } from "../src/L2/L2ERC721Bridge.sol";
+import { Predeploys } from "../src/libraries/Predeploys.sol";
 
 // Target contract
 import { L1ERC721Bridge } from "../src/L1/L1ERC721Bridge.sol";
@@ -20,11 +21,9 @@ contract TestERC721 is ERC721 {
     }
 }
 
-contract L1ERC721Bridge_Test is Messenger_Initializer {
+contract L1ERC721Bridge_Test is ERC721Bridge_Initializer {
     TestERC721 internal localToken;
     TestERC721 internal remoteToken;
-    L1ERC721Bridge internal bridge;
-    address internal constant otherBridge = address(0x3456);
     uint256 internal constant tokenId = 1;
 
     event ERC721BridgeInitiated(
@@ -49,28 +48,23 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
     function setUp() public override {
         super.setUp();
 
-        // Create necessary contracts.
-        bridge = new L1ERC721Bridge(address(L1Messenger), otherBridge);
         localToken = new TestERC721();
         remoteToken = new TestERC721();
 
-        // Label the bridge so we get nice traces.
-        vm.label(address(bridge), "L1ERC721Bridge");
-
         // Mint alice a token.
         localToken.mint(alice, tokenId);
 
         // Approve the bridge to transfer the token.
         vm.prank(alice);
-        localToken.approve(address(bridge), tokenId);
+        localToken.approve(address(L1Bridge), tokenId);
     }
 
     /// @dev Tests that the constructor sets the correct values.
     function test_constructor_succeeds() public {
-        assertEq(address(bridge.MESSENGER()), address(L1Messenger));
-        assertEq(address(bridge.OTHER_BRIDGE()), otherBridge);
-        assertEq(address(bridge.messenger()), address(L1Messenger));
-        assertEq(address(bridge.otherBridge()), otherBridge);
+        assertEq(address(L1Bridge.MESSENGER()), address(L1Messenger));
+        assertEq(address(L1Bridge.OTHER_BRIDGE()), Predeploys.L2_ERC721_BRIDGE);
+        assertEq(address(L1Bridge.messenger()), address(L1Messenger));
+        assertEq(address(L1Bridge.otherBridge()), Predeploys.L2_ERC721_BRIDGE);
     }
 
     /// @dev Tests that the ERC721 can be bridged successfully.
@@ -81,7 +75,7 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
             abi.encodeCall(
                 L1Messenger.sendMessage,
                 (
-                    address(otherBridge),
+                    address(L2Bridge),
                     abi.encodeCall(
                         L2ERC721Bridge.finalizeBridgeERC721,
                         (
@@ -111,11 +105,11 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
 
         // Bridge the token.
         vm.prank(alice);
-        bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
+        L1Bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Token is locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), true);
-        assertEq(localToken.ownerOf(tokenId), address(bridge));
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), true);
+        assertEq(localToken.ownerOf(tokenId), address(L1Bridge));
     }
 
     /// @dev Tests that the ERC721 bridge reverts for non externally owned accounts.
@@ -124,10 +118,10 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         vm.etch(alice, hex"01");
         vm.prank(alice);
         vm.expectRevert("ERC721Bridge: account is not externally owned");
-        bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
+        L1Bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
         assertEq(localToken.ownerOf(tokenId), alice);
     }
 
@@ -136,10 +130,10 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(alice);
         vm.expectRevert();
-        bridge.bridgeERC721(address(0), address(remoteToken), tokenId, 1234, hex"5678");
+        L1Bridge.bridgeERC721(address(0), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
         assertEq(localToken.ownerOf(tokenId), alice);
     }
 
@@ -148,10 +142,10 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(alice);
         vm.expectRevert("L1ERC721Bridge: remote token cannot be address(0)");
-        bridge.bridgeERC721(address(localToken), address(0), tokenId, 1234, hex"5678");
+        L1Bridge.bridgeERC721(address(localToken), address(0), tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
         assertEq(localToken.ownerOf(tokenId), alice);
     }
 
@@ -160,10 +154,10 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(bob);
         vm.expectRevert("ERC721: transfer from incorrect owner");
-        bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
+        L1Bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
         assertEq(localToken.ownerOf(tokenId), alice);
     }
 
@@ -176,7 +170,7 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
             abi.encodeCall(
                 L1Messenger.sendMessage,
                 (
-                    address(otherBridge),
+                    address(Predeploys.L2_ERC721_BRIDGE),
                     abi.encodeCall(
                         L2ERC721Bridge.finalizeBridgeERC721,
                         (address(remoteToken), address(localToken), alice, bob, tokenId, hex"5678")
@@ -199,7 +193,7 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
 
         // Bridge the token.
         vm.prank(alice);
-        bridge.bridgeERC721To(
+        L1Bridge.bridgeERC721To(
             address(localToken),
             address(remoteToken),
             bob,
@@ -209,8 +203,8 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         );
 
         // Token is locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), true);
-        assertEq(localToken.ownerOf(tokenId), address(bridge));
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), true);
+        assertEq(localToken.ownerOf(tokenId), address(L1Bridge));
     }
 
     /// @dev Tests that the ERC721 bridge reverts for non externally owned accounts
@@ -219,10 +213,10 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(alice);
         vm.expectRevert();
-        bridge.bridgeERC721To(address(0), address(remoteToken), bob, tokenId, 1234, hex"5678");
+        L1Bridge.bridgeERC721To(address(0), address(remoteToken), bob, tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
         assertEq(localToken.ownerOf(tokenId), alice);
     }
 
@@ -232,10 +226,10 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(alice);
         vm.expectRevert("L1ERC721Bridge: remote token cannot be address(0)");
-        bridge.bridgeERC721To(address(localToken), address(0), bob, tokenId, 1234, hex"5678");
+        L1Bridge.bridgeERC721To(address(localToken), address(0), bob, tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
         assertEq(localToken.ownerOf(tokenId), alice);
     }
 
@@ -245,7 +239,7 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(bob);
         vm.expectRevert("ERC721: transfer from incorrect owner");
-        bridge.bridgeERC721To(
+        L1Bridge.bridgeERC721To(
             address(localToken),
             address(remoteToken),
             bob,
@@ -255,7 +249,7 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         );
 
         // Token is not locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
         assertEq(localToken.ownerOf(tokenId), alice);
     }
 
@@ -263,7 +257,7 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
     function test_finalizeBridgeERC721_succeeds() external {
         // Bridge the token.
         vm.prank(alice);
-        bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
+        L1Bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Expect an event to be emitted.
         vm.expectEmit(true, true, true, true);
@@ -280,10 +274,10 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         vm.mockCall(
             address(L1Messenger),
             abi.encodeWithSelector(L1Messenger.xDomainMessageSender.selector),
-            abi.encode(otherBridge)
+            abi.encode(Predeploys.L2_ERC721_BRIDGE)
         );
         vm.prank(address(L1Messenger));
-        bridge.finalizeBridgeERC721(
+        L1Bridge.finalizeBridgeERC721(
             address(localToken),
             address(remoteToken),
             alice,
@@ -293,7 +287,7 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         );
 
         // Token is not locked in the bridge.
-        assertEq(bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
+        assertEq(L1Bridge.deposits(address(localToken), address(remoteToken), tokenId), false);
         assertEq(localToken.ownerOf(tokenId), alice);
     }
 
@@ -303,7 +297,7 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         // Finalize a withdrawal.
         vm.prank(alice);
         vm.expectRevert("ERC721Bridge: function can only be called from the other bridge");
-        bridge.finalizeBridgeERC721(
+        L1Bridge.finalizeBridgeERC721(
             address(localToken),
             address(remoteToken),
             alice,
@@ -324,7 +318,7 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         );
         vm.prank(address(L1Messenger));
         vm.expectRevert("ERC721Bridge: function can only be called from the other bridge");
-        bridge.finalizeBridgeERC721(
+        L1Bridge.finalizeBridgeERC721(
             address(localToken),
             address(remoteToken),
             alice,
@@ -341,12 +335,12 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         vm.mockCall(
             address(L1Messenger),
             abi.encodeWithSelector(L1Messenger.xDomainMessageSender.selector),
-            abi.encode(otherBridge)
+            abi.encode(Predeploys.L2_ERC721_BRIDGE)
         );
         vm.prank(address(L1Messenger));
         vm.expectRevert("L1ERC721Bridge: local token cannot be self");
-        bridge.finalizeBridgeERC721(
-            address(bridge),
+        L1Bridge.finalizeBridgeERC721(
+            address(L1Bridge),
             address(remoteToken),
             alice,
             alice,
@@ -362,11 +356,11 @@ contract L1ERC721Bridge_Test is Messenger_Initializer {
         vm.mockCall(
             address(L1Messenger),
             abi.encodeWithSelector(L1Messenger.xDomainMessageSender.selector),
-            abi.encode(otherBridge)
+            abi.encode(Predeploys.L2_ERC721_BRIDGE)
         );
         vm.prank(address(L1Messenger));
         vm.expectRevert("L1ERC721Bridge: Token ID is not escrowed in the L1 Bridge");
-        bridge.finalizeBridgeERC721(
+        L1Bridge.finalizeBridgeERC721(
             address(localToken),
             address(remoteToken),
             alice,

packages/contracts-bedrock/test/L2ERC721Bridge.t.sol

@@ -2,7 +2,7 @@
 pragma solidity 0.8.15;
 
 // Testing utilities
-import { Messenger_Initializer } from "./CommonTest.t.sol";
+import { ERC721Bridge_Initializer } from "./CommonTest.t.sol";
 
 // Target contract dependencies
 import { ERC721 } from "@openzeppelin/contracts/token/ERC721/ERC721.sol";
@@ -30,11 +30,9 @@ contract TestMintableERC721 is OptimismMintableERC721 {
     }
 }
 
-contract L2ERC721Bridge_Test is Messenger_Initializer {
+contract L2ERC721Bridge_Test is ERC721Bridge_Initializer {
     TestMintableERC721 internal localToken;
     TestERC721 internal remoteToken;
-    L2ERC721Bridge internal bridge;
-    address internal constant otherBridge = address(0x3456);
     uint256 internal constant tokenId = 1;
 
     event ERC721BridgeInitiated(
@@ -59,28 +57,23 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
     function setUp() public override {
         super.setUp();
 
-        // Create necessary contracts.
-        bridge = new L2ERC721Bridge(address(L2Messenger), otherBridge);
         remoteToken = new TestERC721();
-        localToken = new TestMintableERC721(address(bridge), address(remoteToken));
-
-        // Label the bridge so we get nice traces.
-        vm.label(address(bridge), "L2ERC721Bridge");
+        localToken = new TestMintableERC721(address(L2Bridge), address(remoteToken));
 
         // Mint alice a token.
         localToken.mint(alice, tokenId);
 
         // Approve the bridge to transfer the token.
         vm.prank(alice);
-        localToken.approve(address(bridge), tokenId);
+        localToken.approve(address(L2Bridge), tokenId);
     }
 
     /// @dev Tests that the constructor sets the correct variables.
     function test_constructor_succeeds() public {
-        assertEq(address(bridge.MESSENGER()), address(L2Messenger));
-        assertEq(address(bridge.OTHER_BRIDGE()), otherBridge);
-        assertEq(address(bridge.messenger()), address(L2Messenger));
-        assertEq(address(bridge.otherBridge()), otherBridge);
+        assertEq(address(L2Bridge.MESSENGER()), address(L2Messenger));
+        assertEq(address(L2Bridge.OTHER_BRIDGE()), address(L1Bridge));
+        assertEq(address(L2Bridge.messenger()), address(L2Messenger));
+        assertEq(address(L2Bridge.otherBridge()), address(L1Bridge));
     }
 
     /// @dev Tests that `bridgeERC721` correctly bridges a token and
@@ -92,7 +85,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
             abi.encodeCall(
                 L2Messenger.sendMessage,
                 (
-                    address(otherBridge),
+                    address(L1Bridge),
                     abi.encodeCall(
                         L2ERC721Bridge.finalizeBridgeERC721,
                         (
@@ -122,7 +115,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
 
         // Bridge the token.
         vm.prank(alice);
-        bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
+        L2Bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Token is burned.
         vm.expectRevert("ERC721: invalid token ID");
@@ -135,7 +128,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         vm.etch(alice, hex"01");
         vm.prank(alice);
         vm.expectRevert("ERC721Bridge: account is not externally owned");
-        bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
+        L2Bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
         assertEq(localToken.ownerOf(tokenId), alice);
@@ -146,7 +139,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(alice);
         vm.expectRevert();
-        bridge.bridgeERC721(address(0), address(remoteToken), tokenId, 1234, hex"5678");
+        L2Bridge.bridgeERC721(address(0), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
         assertEq(localToken.ownerOf(tokenId), alice);
@@ -157,7 +150,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(alice);
         vm.expectRevert("L2ERC721Bridge: remote token cannot be address(0)");
-        bridge.bridgeERC721(address(localToken), address(0), tokenId, 1234, hex"5678");
+        L2Bridge.bridgeERC721(address(localToken), address(0), tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
         assertEq(localToken.ownerOf(tokenId), alice);
@@ -168,7 +161,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(bob);
         vm.expectRevert("L2ERC721Bridge: Withdrawal is not being initiated by NFT owner");
-        bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
+        L2Bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
         assertEq(localToken.ownerOf(tokenId), alice);
@@ -183,7 +176,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
             abi.encodeCall(
                 L2Messenger.sendMessage,
                 (
-                    address(otherBridge),
+                    address(L1Bridge),
                     abi.encodeCall(
                         L1ERC721Bridge.finalizeBridgeERC721,
                         (address(remoteToken), address(localToken), alice, bob, tokenId, hex"5678")
@@ -206,7 +199,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
 
         // Bridge the token.
         vm.prank(alice);
-        bridge.bridgeERC721To(
+        L2Bridge.bridgeERC721To(
             address(localToken),
             address(remoteToken),
             bob,
@@ -225,7 +218,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(alice);
         vm.expectRevert();
-        bridge.bridgeERC721To(address(0), address(remoteToken), bob, tokenId, 1234, hex"5678");
+        L2Bridge.bridgeERC721To(address(0), address(L1Bridge), bob, tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
         assertEq(localToken.ownerOf(tokenId), alice);
@@ -236,7 +229,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(alice);
         vm.expectRevert("L2ERC721Bridge: remote token cannot be address(0)");
-        bridge.bridgeERC721To(address(localToken), address(0), bob, tokenId, 1234, hex"5678");
+        L2Bridge.bridgeERC721To(address(localToken), address(0), bob, tokenId, 1234, hex"5678");
 
         // Token is not locked in the bridge.
         assertEq(localToken.ownerOf(tokenId), alice);
@@ -247,7 +240,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         // Bridge the token.
         vm.prank(bob);
         vm.expectRevert("L2ERC721Bridge: Withdrawal is not being initiated by NFT owner");
-        bridge.bridgeERC721To(
+        L2Bridge.bridgeERC721To(
             address(localToken),
             address(remoteToken),
             bob,
@@ -264,7 +257,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
     function test_finalizeBridgeERC721_succeeds() external {
         // Bridge the token.
         vm.prank(alice);
-        bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
+        L2Bridge.bridgeERC721(address(localToken), address(remoteToken), tokenId, 1234, hex"5678");
 
         // Expect an event to be emitted.
         vm.expectEmit(true, true, true, true);
@@ -281,10 +274,10 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         vm.mockCall(
             address(L2Messenger),
             abi.encodeWithSelector(L2Messenger.xDomainMessageSender.selector),
-            abi.encode(otherBridge)
+            abi.encode(L1Bridge)
         );
         vm.prank(address(L2Messenger));
-        bridge.finalizeBridgeERC721(
+        L2Bridge.finalizeBridgeERC721(
             address(localToken),
             address(remoteToken),
             alice,
@@ -305,18 +298,18 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
 
         // Bridge the non-compliant token.
         vm.prank(alice);
-        bridge.bridgeERC721(address(nonCompliantToken), address(0x01), tokenId, 1234, hex"5678");
+        L2Bridge.bridgeERC721(address(nonCompliantToken), address(0x01), tokenId, 1234, hex"5678");
 
         // Attempt to finalize the withdrawal. Should revert because the token does not claim
         // to be compliant with the `IOptimismMintableERC721` interface.
         vm.mockCall(
             address(L2Messenger),
             abi.encodeWithSelector(L2Messenger.xDomainMessageSender.selector),
-            abi.encode(otherBridge)
+            abi.encode(L1Bridge)
         );
         vm.prank(address(L2Messenger));
         vm.expectRevert("L2ERC721Bridge: local token interface is not compliant");
-        bridge.finalizeBridgeERC721(
+        L2Bridge.finalizeBridgeERC721(
             address(address(nonCompliantToken)),
             address(address(0x01)),
             alice,
@@ -331,7 +324,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         // Finalize a withdrawal.
         vm.prank(alice);
         vm.expectRevert("ERC721Bridge: function can only be called from the other bridge");
-        bridge.finalizeBridgeERC721(
+        L2Bridge.finalizeBridgeERC721(
             address(localToken),
             address(remoteToken),
             alice,
@@ -351,7 +344,7 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         );
         vm.prank(address(L2Messenger));
         vm.expectRevert("ERC721Bridge: function can only be called from the other bridge");
-        bridge.finalizeBridgeERC721(
+        L2Bridge.finalizeBridgeERC721(
             address(localToken),
             address(remoteToken),
             alice,
@@ -368,12 +361,12 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         vm.mockCall(
             address(L2Messenger),
             abi.encodeWithSelector(L2Messenger.xDomainMessageSender.selector),
-            abi.encode(otherBridge)
+            abi.encode(address(L1Bridge))
         );
         vm.prank(address(L2Messenger));
         vm.expectRevert("L2ERC721Bridge: local token cannot be self");
-        bridge.finalizeBridgeERC721(
-            address(bridge),
+        L2Bridge.finalizeBridgeERC721(
+            address(L2Bridge),
             address(remoteToken),
             alice,
             alice,
@@ -388,11 +381,11 @@ contract L2ERC721Bridge_Test is Messenger_Initializer {
         vm.mockCall(
             address(L2Messenger),
             abi.encodeWithSelector(L2Messenger.xDomainMessageSender.selector),
-            abi.encode(otherBridge)
+            abi.encode(address(L1Bridge))
         );
         vm.prank(address(L2Messenger));
         vm.expectRevert("ERC721: token already minted");
-        bridge.finalizeBridgeERC721(
+        L2Bridge.finalizeBridgeERC721(
             address(localToken),
             address(remoteToken),
             alice,