ctb: Naming and comments to clarify interfaces usage (#3439)

* ctb: Naming and comments to clarify interfaces usage

The OptimismMintableERC20 token used two interfaces in its
supportsInterface() function. These were confusingly named
after the functions that they contain (ie. IL1Token, IRemoteToken),
rather than the contracts these interfaces represent.
The name has been tweaked slighly, and comments have been added to
clarify the intent.

fix(ctb): Clearer names for the mintable token iface

* ctb: Add bridge() to mintable erc20 interface

* chore: bindings

.changeset/big-schools-explain.md

+---
+'@eth-optimism/contracts-bedrock': patch
+---
+
+Clarify intent with mintable token interfaces

op-bindings/bindings/gaspriceoracle_more.go

@@ -9,7 +9,7 @@ import (
 	"github.com/ethereum-optimism/optimism/op-bindings/solc"
 )
 
-const GasPriceOracleStorageLayoutJSON = "{\"storage\":[{\"astId\":27778,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"_owner\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_address\"},{\"astId\":1754,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"spacer0\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_uint256\"},{\"astId\":1757,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"spacer1\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_uint256\"},{\"astId\":1760,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"overhead\",\"offset\":0,\"slot\":\"3\",\"type\":\"t_uint256\"},{\"astId\":1763,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"scalar\",\"offset\":0,\"slot\":\"4\",\"type\":\"t_uint256\"},{\"astId\":1766,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"decimals\",\"offset\":0,\"slot\":\"5\",\"type\":\"t_uint256\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"}}}"
+const GasPriceOracleStorageLayoutJSON = "{\"storage\":[{\"astId\":27817,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"_owner\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_address\"},{\"astId\":1754,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"spacer0\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_uint256\"},{\"astId\":1757,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"spacer1\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_uint256\"},{\"astId\":1760,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"overhead\",\"offset\":0,\"slot\":\"3\",\"type\":\"t_uint256\"},{\"astId\":1763,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"scalar\",\"offset\":0,\"slot\":\"4\",\"type\":\"t_uint256\"},{\"astId\":1766,\"contract\":\"contracts/L2/GasPriceOracle.sol:GasPriceOracle\",\"label\":\"decimals\",\"offset\":0,\"slot\":\"5\",\"type\":\"t_uint256\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"}}}"
 
 var GasPriceOracleStorageLayout = new(solc.StorageLayout)
 

op-bindings/bindings/governancetoken_more.go

@@ -9,7 +9,7 @@ import (
 	"github.com/ethereum-optimism/optimism/op-bindings/solc"
 )
 
-const GovernanceTokenStorageLayoutJSON = "{\"storage\":[{\"astId\":27977,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_balances\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_mapping(t_address,t_uint256)\"},{\"astId\":27983,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_allowances\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_mapping(t_address,t_mapping(t_address,t_uint256))\"},{\"astId\":27985,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_totalSupply\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_uint256\"},{\"astId\":27987,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_name\",\"offset\":0,\"slot\":\"3\",\"type\":\"t_string_storage\"},{\"astId\":27989,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_symbol\",\"offset\":0,\"slot\":\"4\",\"type\":\"t_string_storage\"},{\"astId\":29354,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_nonces\",\"offset\":0,\"slot\":\"5\",\"type\":\"t_mapping(t_address,t_struct(Counter)30143_storage)\"},{\"astId\":29362,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_PERMIT_TYPEHASH_DEPRECATED_SLOT\",\"offset\":0,\"slot\":\"6\",\"type\":\"t_bytes32\"},{\"astId\":28695,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_delegates\",\"offset\":0,\"slot\":\"7\",\"type\":\"t_mapping(t_address,t_address)\"},{\"astId\":28701,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_checkpoints\",\"offset\":0,\"slot\":\"8\",\"type\":\"t_mapping(t_address,t_array(t_struct(Checkpoint)28686_storage)dyn_storage)\"},{\"astId\":28705,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_totalSupplyCheckpoints\",\"offset\":0,\"slot\":\"9\",\"type\":\"t_array(t_struct(Checkpoint)28686_storage)dyn_storage\"},{\"astId\":27778,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_owner\",\"offset\":0,\"slot\":\"10\",\"type\":\"t_address\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_struct(Checkpoint)28686_storage)dyn_storage\":{\"encoding\":\"dynamic_array\",\"label\":\"struct ERC20Votes.Checkpoint[]\",\"numberOfBytes\":\"32\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_address,t_address)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e address)\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_address\"},\"t_mapping(t_address,t_array(t_struct(Checkpoint)28686_storage)dyn_storage)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e struct ERC20Votes.Checkpoint[])\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_array(t_struct(Checkpoint)28686_storage)dyn_storage\"},\"t_mapping(t_address,t_mapping(t_address,t_uint256))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(address =\u003e uint256))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_address,t_uint256)\"},\"t_mapping(t_address,t_struct(Counter)30143_storage)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e struct Counters.Counter)\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_struct(Counter)30143_storage\"},\"t_mapping(t_address,t_uint256)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e uint256)\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_uint256\"},\"t_string_storage\":{\"encoding\":\"bytes\",\"label\":\"string\",\"numberOfBytes\":\"32\"},\"t_struct(Checkpoint)28686_storage\":{\"encoding\":\"inplace\",\"label\":\"struct ERC20Votes.Checkpoint\",\"numberOfBytes\":\"32\"},\"t_struct(Counter)30143_storage\":{\"encoding\":\"inplace\",\"label\":\"struct Counters.Counter\",\"numberOfBytes\":\"32\"},\"t_uint224\":{\"encoding\":\"inplace\",\"label\":\"uint224\",\"numberOfBytes\":\"28\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint32\":{\"encoding\":\"inplace\",\"label\":\"uint32\",\"numberOfBytes\":\"4\"}}}"
+const GovernanceTokenStorageLayoutJSON = "{\"storage\":[{\"astId\":28016,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_balances\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_mapping(t_address,t_uint256)\"},{\"astId\":28022,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_allowances\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_mapping(t_address,t_mapping(t_address,t_uint256))\"},{\"astId\":28024,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_totalSupply\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_uint256\"},{\"astId\":28026,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_name\",\"offset\":0,\"slot\":\"3\",\"type\":\"t_string_storage\"},{\"astId\":28028,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_symbol\",\"offset\":0,\"slot\":\"4\",\"type\":\"t_string_storage\"},{\"astId\":29393,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_nonces\",\"offset\":0,\"slot\":\"5\",\"type\":\"t_mapping(t_address,t_struct(Counter)30182_storage)\"},{\"astId\":29401,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_PERMIT_TYPEHASH_DEPRECATED_SLOT\",\"offset\":0,\"slot\":\"6\",\"type\":\"t_bytes32\"},{\"astId\":28734,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_delegates\",\"offset\":0,\"slot\":\"7\",\"type\":\"t_mapping(t_address,t_address)\"},{\"astId\":28740,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_checkpoints\",\"offset\":0,\"slot\":\"8\",\"type\":\"t_mapping(t_address,t_array(t_struct(Checkpoint)28725_storage)dyn_storage)\"},{\"astId\":28744,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_totalSupplyCheckpoints\",\"offset\":0,\"slot\":\"9\",\"type\":\"t_array(t_struct(Checkpoint)28725_storage)dyn_storage\"},{\"astId\":27817,\"contract\":\"contracts/L2/GovernanceToken.sol:GovernanceToken\",\"label\":\"_owner\",\"offset\":0,\"slot\":\"10\",\"type\":\"t_address\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_struct(Checkpoint)28725_storage)dyn_storage\":{\"encoding\":\"dynamic_array\",\"label\":\"struct ERC20Votes.Checkpoint[]\",\"numberOfBytes\":\"32\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_address,t_address)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e address)\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_address\"},\"t_mapping(t_address,t_array(t_struct(Checkpoint)28725_storage)dyn_storage)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e struct ERC20Votes.Checkpoint[])\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_array(t_struct(Checkpoint)28725_storage)dyn_storage\"},\"t_mapping(t_address,t_mapping(t_address,t_uint256))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(address =\u003e uint256))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_address,t_uint256)\"},\"t_mapping(t_address,t_struct(Counter)30182_storage)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e struct Counters.Counter)\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_struct(Counter)30182_storage\"},\"t_mapping(t_address,t_uint256)\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e uint256)\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_uint256\"},\"t_string_storage\":{\"encoding\":\"bytes\",\"label\":\"string\",\"numberOfBytes\":\"32\"},\"t_struct(Checkpoint)28725_storage\":{\"encoding\":\"inplace\",\"label\":\"struct ERC20Votes.Checkpoint\",\"numberOfBytes\":\"32\"},\"t_struct(Counter)30182_storage\":{\"encoding\":\"inplace\",\"label\":\"struct Counters.Counter\",\"numberOfBytes\":\"32\"},\"t_uint224\":{\"encoding\":\"inplace\",\"label\":\"uint224\",\"numberOfBytes\":\"28\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint32\":{\"encoding\":\"inplace\",\"label\":\"uint32\",\"numberOfBytes\":\"4\"}}}"
 
 var GovernanceTokenStorageLayout = new(solc.StorageLayout)
 

op-bindings/bindings/l1crossdomainmessenger_more.go

@@ -9,7 +9,7 @@ import (
 	"github.com/ethereum-optimism/optimism/op-bindings/solc"
 )
 
-const L1CrossDomainMessengerStorageLayoutJSON = "{\"storage\":[{\"astId\":24694,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"spacer_0_0_20\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_bytes20\"},{\"astId\":27155,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_initialized\",\"offset\":20,\"slot\":\"0\",\"type\":\"t_uint8\"},{\"astId\":27158,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_initializing\",\"offset\":21,\"slot\":\"0\",\"type\":\"t_bool\"},{\"astId\":27769,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_array(t_uint256)50_storage\"},{\"astId\":27027,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_owner\",\"offset\":0,\"slot\":\"51\",\"type\":\"t_address\"},{\"astId\":27147,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"52\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":27320,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_paused\",\"offset\":0,\"slot\":\"101\",\"type\":\"t_bool\"},{\"astId\":27425,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"102\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":27440,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_status\",\"offset\":0,\"slot\":\"151\",\"type\":\"t_uint256\"},{\"astId\":27484,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"152\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":24744,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"spacer_201_0_32\",\"offset\":0,\"slot\":\"201\",\"type\":\"t_bytes32\"},{\"astId\":24747,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"spacer_202_0_32\",\"offset\":0,\"slot\":\"202\",\"type\":\"t_bytes32\"},{\"astId\":24752,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"successfulMessages\",\"offset\":0,\"slot\":\"203\",\"type\":\"t_mapping(t_bytes32,t_bool)\"},{\"astId\":24755,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"xDomainMsgSender\",\"offset\":0,\"slot\":\"204\",\"type\":\"t_address\"},{\"astId\":24758,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"msgNonce\",\"offset\":0,\"slot\":\"205\",\"type\":\"t_uint240\"},{\"astId\":24763,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"receivedMessages\",\"offset\":0,\"slot\":\"206\",\"type\":\"t_mapping(t_bytes32,t_bool)\"},{\"astId\":24768,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"207\",\"type\":\"t_array(t_uint256)42_storage\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_uint256)42_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[42]\",\"numberOfBytes\":\"1344\"},\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\"},\"t_array(t_uint256)50_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[50]\",\"numberOfBytes\":\"1600\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes20\":{\"encoding\":\"inplace\",\"label\":\"bytes20\",\"numberOfBytes\":\"20\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_bytes32,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_bool\"},\"t_uint240\":{\"encoding\":\"inplace\",\"label\":\"uint240\",\"numberOfBytes\":\"30\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint8\":{\"encoding\":\"inplace\",\"label\":\"uint8\",\"numberOfBytes\":\"1\"}}}"
+const L1CrossDomainMessengerStorageLayoutJSON = "{\"storage\":[{\"astId\":24700,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"spacer_0_0_20\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_bytes20\"},{\"astId\":27194,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_initialized\",\"offset\":20,\"slot\":\"0\",\"type\":\"t_uint8\"},{\"astId\":27197,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_initializing\",\"offset\":21,\"slot\":\"0\",\"type\":\"t_bool\"},{\"astId\":27808,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_array(t_uint256)50_storage\"},{\"astId\":27066,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_owner\",\"offset\":0,\"slot\":\"51\",\"type\":\"t_address\"},{\"astId\":27186,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"52\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":27359,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_paused\",\"offset\":0,\"slot\":\"101\",\"type\":\"t_bool\"},{\"astId\":27464,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"102\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":27479,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"_status\",\"offset\":0,\"slot\":\"151\",\"type\":\"t_uint256\"},{\"astId\":27523,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"152\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":24750,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"spacer_201_0_32\",\"offset\":0,\"slot\":\"201\",\"type\":\"t_bytes32\"},{\"astId\":24753,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"spacer_202_0_32\",\"offset\":0,\"slot\":\"202\",\"type\":\"t_bytes32\"},{\"astId\":24758,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"successfulMessages\",\"offset\":0,\"slot\":\"203\",\"type\":\"t_mapping(t_bytes32,t_bool)\"},{\"astId\":24761,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"xDomainMsgSender\",\"offset\":0,\"slot\":\"204\",\"type\":\"t_address\"},{\"astId\":24764,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"msgNonce\",\"offset\":0,\"slot\":\"205\",\"type\":\"t_uint240\"},{\"astId\":24769,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"receivedMessages\",\"offset\":0,\"slot\":\"206\",\"type\":\"t_mapping(t_bytes32,t_bool)\"},{\"astId\":24774,\"contract\":\"contracts/L1/L1CrossDomainMessenger.sol:L1CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"207\",\"type\":\"t_array(t_uint256)42_storage\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_uint256)42_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[42]\",\"numberOfBytes\":\"1344\"},\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\"},\"t_array(t_uint256)50_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[50]\",\"numberOfBytes\":\"1600\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes20\":{\"encoding\":\"inplace\",\"label\":\"bytes20\",\"numberOfBytes\":\"20\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_bytes32,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_bool\"},\"t_uint240\":{\"encoding\":\"inplace\",\"label\":\"uint240\",\"numberOfBytes\":\"30\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint8\":{\"encoding\":\"inplace\",\"label\":\"uint8\",\"numberOfBytes\":\"1\"}}}"
 
 var L1CrossDomainMessengerStorageLayout = new(solc.StorageLayout)
 

op-bindings/bindings/l2crossdomainmessenger_more.go

@@ -9,7 +9,7 @@ import (
 	"github.com/ethereum-optimism/optimism/op-bindings/solc"
 )
 
-const L2CrossDomainMessengerStorageLayoutJSON = "{\"storage\":[{\"astId\":24694,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"spacer_0_0_20\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_bytes20\"},{\"astId\":27155,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_initialized\",\"offset\":20,\"slot\":\"0\",\"type\":\"t_uint8\"},{\"astId\":27158,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_initializing\",\"offset\":21,\"slot\":\"0\",\"type\":\"t_bool\"},{\"astId\":27769,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_array(t_uint256)50_storage\"},{\"astId\":27027,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_owner\",\"offset\":0,\"slot\":\"51\",\"type\":\"t_address\"},{\"astId\":27147,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"52\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":27320,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_paused\",\"offset\":0,\"slot\":\"101\",\"type\":\"t_bool\"},{\"astId\":27425,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"102\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":27440,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_status\",\"offset\":0,\"slot\":\"151\",\"type\":\"t_uint256\"},{\"astId\":27484,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"152\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":24744,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"spacer_201_0_32\",\"offset\":0,\"slot\":\"201\",\"type\":\"t_bytes32\"},{\"astId\":24747,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"spacer_202_0_32\",\"offset\":0,\"slot\":\"202\",\"type\":\"t_bytes32\"},{\"astId\":24752,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"successfulMessages\",\"offset\":0,\"slot\":\"203\",\"type\":\"t_mapping(t_bytes32,t_bool)\"},{\"astId\":24755,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"xDomainMsgSender\",\"offset\":0,\"slot\":\"204\",\"type\":\"t_address\"},{\"astId\":24758,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"msgNonce\",\"offset\":0,\"slot\":\"205\",\"type\":\"t_uint240\"},{\"astId\":24763,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"receivedMessages\",\"offset\":0,\"slot\":\"206\",\"type\":\"t_mapping(t_bytes32,t_bool)\"},{\"astId\":24768,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"207\",\"type\":\"t_array(t_uint256)42_storage\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_uint256)42_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[42]\",\"numberOfBytes\":\"1344\"},\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\"},\"t_array(t_uint256)50_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[50]\",\"numberOfBytes\":\"1600\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes20\":{\"encoding\":\"inplace\",\"label\":\"bytes20\",\"numberOfBytes\":\"20\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_bytes32,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_bool\"},\"t_uint240\":{\"encoding\":\"inplace\",\"label\":\"uint240\",\"numberOfBytes\":\"30\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint8\":{\"encoding\":\"inplace\",\"label\":\"uint8\",\"numberOfBytes\":\"1\"}}}"
+const L2CrossDomainMessengerStorageLayoutJSON = "{\"storage\":[{\"astId\":24700,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"spacer_0_0_20\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_bytes20\"},{\"astId\":27194,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_initialized\",\"offset\":20,\"slot\":\"0\",\"type\":\"t_uint8\"},{\"astId\":27197,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_initializing\",\"offset\":21,\"slot\":\"0\",\"type\":\"t_bool\"},{\"astId\":27808,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_array(t_uint256)50_storage\"},{\"astId\":27066,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_owner\",\"offset\":0,\"slot\":\"51\",\"type\":\"t_address\"},{\"astId\":27186,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"52\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":27359,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_paused\",\"offset\":0,\"slot\":\"101\",\"type\":\"t_bool\"},{\"astId\":27464,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"102\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":27479,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"_status\",\"offset\":0,\"slot\":\"151\",\"type\":\"t_uint256\"},{\"astId\":27523,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"152\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":24750,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"spacer_201_0_32\",\"offset\":0,\"slot\":\"201\",\"type\":\"t_bytes32\"},{\"astId\":24753,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"spacer_202_0_32\",\"offset\":0,\"slot\":\"202\",\"type\":\"t_bytes32\"},{\"astId\":24758,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"successfulMessages\",\"offset\":0,\"slot\":\"203\",\"type\":\"t_mapping(t_bytes32,t_bool)\"},{\"astId\":24761,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"xDomainMsgSender\",\"offset\":0,\"slot\":\"204\",\"type\":\"t_address\"},{\"astId\":24764,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"msgNonce\",\"offset\":0,\"slot\":\"205\",\"type\":\"t_uint240\"},{\"astId\":24769,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"receivedMessages\",\"offset\":0,\"slot\":\"206\",\"type\":\"t_mapping(t_bytes32,t_bool)\"},{\"astId\":24774,\"contract\":\"contracts/L2/L2CrossDomainMessenger.sol:L2CrossDomainMessenger\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"207\",\"type\":\"t_array(t_uint256)42_storage\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_uint256)42_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[42]\",\"numberOfBytes\":\"1344\"},\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\"},\"t_array(t_uint256)50_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[50]\",\"numberOfBytes\":\"1600\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes20\":{\"encoding\":\"inplace\",\"label\":\"bytes20\",\"numberOfBytes\":\"20\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_bytes32,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_bool\"},\"t_uint240\":{\"encoding\":\"inplace\",\"label\":\"uint240\",\"numberOfBytes\":\"30\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint8\":{\"encoding\":\"inplace\",\"label\":\"uint8\",\"numberOfBytes\":\"1\"}}}"
 
 var L2CrossDomainMessengerStorageLayout = new(solc.StorageLayout)
 

op-bindings/bindings/optimismportal_more.go

@@ -9,7 +9,7 @@ import (
 	"github.com/ethereum-optimism/optimism/op-bindings/solc"
 )
 
-const OptimismPortalStorageLayoutJSON = "{\"storage\":[{\"astId\":27155,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"_initialized\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_uint8\"},{\"astId\":27158,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"_initializing\",\"offset\":1,\"slot\":\"0\",\"type\":\"t_bool\"},{\"astId\":1404,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"params\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_struct(ResourceParams)1374_storage\"},{\"astId\":1409,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":982,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"l2Sender\",\"offset\":0,\"slot\":\"51\",\"type\":\"t_address\"},{\"astId\":995,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"finalizedWithdrawals\",\"offset\":0,\"slot\":\"52\",\"type\":\"t_mapping(t_bytes32,t_bool)\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_bytes32,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_bool\"},\"t_struct(ResourceParams)1374_storage\":{\"encoding\":\"inplace\",\"label\":\"struct ResourceMetering.ResourceParams\",\"numberOfBytes\":\"32\"},\"t_uint128\":{\"encoding\":\"inplace\",\"label\":\"uint128\",\"numberOfBytes\":\"16\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint64\":{\"encoding\":\"inplace\",\"label\":\"uint64\",\"numberOfBytes\":\"8\"},\"t_uint8\":{\"encoding\":\"inplace\",\"label\":\"uint8\",\"numberOfBytes\":\"1\"}}}"
+const OptimismPortalStorageLayoutJSON = "{\"storage\":[{\"astId\":27194,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"_initialized\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_uint8\"},{\"astId\":27197,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"_initializing\",\"offset\":1,\"slot\":\"0\",\"type\":\"t_bool\"},{\"astId\":1404,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"params\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_struct(ResourceParams)1374_storage\"},{\"astId\":1409,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"__gap\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_array(t_uint256)49_storage\"},{\"astId\":982,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"l2Sender\",\"offset\":0,\"slot\":\"51\",\"type\":\"t_address\"},{\"astId\":995,\"contract\":\"contracts/L1/OptimismPortal.sol:OptimismPortal\",\"label\":\"finalizedWithdrawals\",\"offset\":0,\"slot\":\"52\",\"type\":\"t_mapping(t_bytes32,t_bool)\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_uint256)49_storage\":{\"encoding\":\"inplace\",\"label\":\"uint256[49]\",\"numberOfBytes\":\"1568\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_bytes32,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_bool\"},\"t_struct(ResourceParams)1374_storage\":{\"encoding\":\"inplace\",\"label\":\"struct ResourceMetering.ResourceParams\",\"numberOfBytes\":\"32\"},\"t_uint128\":{\"encoding\":\"inplace\",\"label\":\"uint128\",\"numberOfBytes\":\"16\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_uint64\":{\"encoding\":\"inplace\",\"label\":\"uint64\",\"numberOfBytes\":\"8\"},\"t_uint8\":{\"encoding\":\"inplace\",\"label\":\"uint8\",\"numberOfBytes\":\"1\"}}}"
 
 var OptimismPortalStorageLayout = new(solc.StorageLayout)
 

packages/contracts-bedrock/.gas-snapshot

@@ -65,12 +65,12 @@ L1CrossDomainMessenger_Test:test_L1MessengerTwiceSendMessage() (gas: 1490366)
 L1CrossDomainMessenger_Test:test_L1MessengerUnpause() (gas: 41003)
 L1CrossDomainMessenger_Test:test_L1MessengerXDomainSenderReverts() (gas: 24283)
 L1CrossDomainMessenger_Test:test_L1MessengerxDomainMessageSenderResets() (gas: 81947)
-L1StandardBridge_Test:test_depositERC20() (gas: 572768)
-L1StandardBridge_Test:test_depositERC20To() (gas: 574975)
+L1StandardBridge_Test:test_depositERC20() (gas: 573485)
+L1StandardBridge_Test:test_depositERC20To() (gas: 575692)
 L1StandardBridge_Test:test_depositETH() (gas: 367591)
 L1StandardBridge_Test:test_depositETHTo() (gas: 324772)
-L1StandardBridge_Test:test_finalizeBridgeERC20FailSendBack() (gas: 674547)
-L1StandardBridge_Test:test_finalizeERC20Withdrawal() (gas: 485732)
+L1StandardBridge_Test:test_finalizeBridgeERC20FailSendBack() (gas: 674560)
+L1StandardBridge_Test:test_finalizeERC20Withdrawal() (gas: 486305)
 L1StandardBridge_Test:test_finalizeETHWithdrawal() (gas: 58841)
 L1StandardBridge_Test:test_initialize() (gas: 22127)
 L1StandardBridge_Test:test_onlyEOADepositERC20() (gas: 22376)
@@ -116,13 +116,13 @@ L2OutputOracleUpgradeable_Test:test_initValuesOnProxy() (gas: 39086)
 L2OutputOracleUpgradeable_Test:test_upgrading() (gas: 180632)
 L2StandardBridge_Test:test_ERC20BridgeFailed_whenLocalTokenIsBridge() (gas: 128674)
 L2StandardBridge_Test:test_cannotWithdrawEthWithoutSendingIt() (gas: 21619)
-L2StandardBridge_Test:test_finalizeBridgeERC20FailSendBack() (gas: 493536)
-L2StandardBridge_Test:test_finalizeDeposit() (gas: 94676)
-L2StandardBridge_Test:test_finalizeDeposit_failsToCompleteOutboundTransfer() (gas: 151906)
+L2StandardBridge_Test:test_finalizeBridgeERC20FailSendBack() (gas: 493550)
+L2StandardBridge_Test:test_finalizeDeposit() (gas: 94693)
+L2StandardBridge_Test:test_finalizeDeposit_failsToCompleteOutboundTransfer() (gas: 152465)
 L2StandardBridge_Test:test_initialize() (gas: 10616)
 L2StandardBridge_Test:test_receive() (gas: 132729)
-L2StandardBridge_Test:test_withdraw() (gas: 347942)
-L2StandardBridge_Test:test_withdrawTo() (gas: 348644)
+L2StandardBridge_Test:test_withdraw() (gas: 347956)
+L2StandardBridge_Test:test_withdrawTo() (gas: 348657)
 L2StandardBridge_Test:test_withdraw_onlyEOA() (gas: 251674)
 L2ToL1MessagePasserTest:test_burn() (gas: 113395)
 L2ToL1MessagePasserTest:test_initiateWithdrawal_fromContract() (gas: 72486)

packages/contracts-bedrock/contracts/test/OptimismMintableERC20.t.sol

@@ -2,7 +2,7 @@
 pragma solidity 0.8.15;
 
 import { Bridge_Initializer } from "./CommonTest.t.sol";
-import "../universal/SupportedInterfaces.sol";
+import { ILegacyMintableERC20, IOptimismMintableERC20 } from "../universal/SupportedInterfaces.sol";
 import { IERC165 } from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
 
 contract OptimismMintableERC20_Test is Bridge_Initializer {
@@ -74,11 +74,11 @@ contract OptimismMintableERC20_Test is Bridge_Initializer {
         assert(L2Token.supportsInterface(iface1));
 
         bytes4 iface2 = L2Token.l1Token.selector ^ L2Token.mint.selector ^ L2Token.burn.selector;
-        assertEq(iface2, type(IL1Token).interfaceId);
+        assertEq(iface2, type(ILegacyMintableERC20).interfaceId);
         assert(L2Token.supportsInterface(iface2));
 
-        bytes4 iface3 = L2Token.remoteToken.selector ^ L2Token.mint.selector ^ L2Token.burn.selector;
-        assertEq(iface3, type(IRemoteToken).interfaceId);
+        bytes4 iface3 = L2Token.remoteToken.selector ^ L2Token.bridge.selector ^ L2Token.mint.selector ^ L2Token.burn.selector;
+        assertEq(iface3, type(IOptimismMintableERC20).interfaceId);
         assert(L2Token.supportsInterface(iface3));
     }
 }

packages/contracts-bedrock/contracts/universal/OptimismMintableERC20.sol

@@ -2,7 +2,7 @@
 pragma solidity 0.8.15;
 
 import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
-import "./SupportedInterfaces.sol";
+import { IERC165, ILegacyMintableERC20, IOptimismMintableERC20 } from "./SupportedInterfaces.sol";
 
 /**
  * @title OptimismMintableERC20
@@ -12,7 +12,7 @@ import "./SupportedInterfaces.sol";
  *         Designed to be backwards compatible with the older StandardL2ERC20 token which was only
  *         meant for use on L2.
  */
-contract OptimismMintableERC20 is ERC20 {
+contract OptimismMintableERC20 is IOptimismMintableERC20, ILegacyMintableERC20, ERC20 {
     /**
      * @notice Address of the corresponding version of this token on the remote chain.
      */
@@ -69,7 +69,12 @@ contract OptimismMintableERC20 is ERC20 {
      * @param _to     Address to mint tokens to.
      * @param _amount Amount of tokens to mint.
      */
-    function mint(address _to, uint256 _amount) external virtual onlyBridge {
+    function mint(address _to, uint256 _amount)
+        external
+        virtual
+        override(IOptimismMintableERC20, ILegacyMintableERC20)
+        onlyBridge
+    {
         _mint(_to, _amount);
         emit Mint(_to, _amount);
     }
@@ -80,7 +85,12 @@ contract OptimismMintableERC20 is ERC20 {
      * @param _from   Address to burn tokens from.
      * @param _amount Amount of tokens to burn.
      */
-    function burn(address _from, uint256 _amount) external virtual onlyBridge {
+    function burn(address _from, uint256 _amount)
+        external
+        virtual
+        override(IOptimismMintableERC20, ILegacyMintableERC20)
+        onlyBridge
+    {
         _burn(_from, _amount);
         emit Burn(_from, _amount);
     }
@@ -94,8 +104,10 @@ contract OptimismMintableERC20 is ERC20 {
      */
     function supportsInterface(bytes4 _interfaceId) external pure returns (bool) {
         bytes4 iface1 = type(IERC165).interfaceId;
-        bytes4 iface2 = type(IL1Token).interfaceId;
-        bytes4 iface3 = type(IRemoteToken).interfaceId;
+        // Interface corresponding to the legacy L2StandardERC20.
+        bytes4 iface2 = type(ILegacyMintableERC20).interfaceId;
+        // Interface corresponding to the updated OptimismMintableERC20 (this contract).
+        bytes4 iface3 = type(IOptimismMintableERC20).interfaceId;
         return _interfaceId == iface1 || _interfaceId == iface2 || _interfaceId == iface3;
     }
 

packages/contracts-bedrock/contracts/universal/StandardBridge.sol

@@ -6,7 +6,7 @@ import { ERC165Checker } from "@openzeppelin/contracts/utils/introspection/ERC16
 import { Address } from "@openzeppelin/contracts/utils/Address.sol";
 import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
 import { SafeCall } from "../libraries/SafeCall.sol";
-import { IRemoteToken, IL1Token } from "./SupportedInterfaces.sol";
+import { IOptimismMintableERC20, ILegacyMintableERC20 } from "./SupportedInterfaces.sol";
 import { CrossDomainMessenger } from "./CrossDomainMessenger.sol";
 import { OptimismMintableERC20 } from "./OptimismMintableERC20.sol";
 
@@ -533,7 +533,9 @@ abstract contract StandardBridge {
      * @return True if the token is an OptimismMintableERC20.
      */
     function _isOptimismMintableERC20(address _token) internal view returns (bool) {
-        return ERC165Checker.supportsInterface(_token, type(IL1Token).interfaceId);
+        return
+            ERC165Checker.supportsInterface(_token, type(ILegacyMintableERC20).interfaceId) ||
+            ERC165Checker.supportsInterface(_token, type(IOptimismMintableERC20).interfaceId);
     }
 
     /**

packages/contracts-bedrock/contracts/universal/SupportedInterfaces.sol

@@ -4,18 +4,32 @@ pragma solidity ^0.8.0;
 // Import this here to make it available just by importing this file
 import { IERC165 } from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
 
-interface IRemoteToken {
+/**
+ * @title IOptimismMintableERC20
+ * @notice This interface is available on the OptimismMintableERC20 contract. We declare it as a
+ *         separate interface so that it can be used in custom implementations of
+ *         OptimismMintableERC20.
+ */
+interface IOptimismMintableERC20 {
+    function remoteToken() external returns (address);
+
+    function bridge() external returns (address);
+
     function mint(address _to, uint256 _amount) external;
 
     function burn(address _from, uint256 _amount) external;
-
-    function remoteToken() external;
 }
 
-interface IL1Token {
+/**
+ * @custom:legacy
+ * @title ILegacyMintableERC20
+ * @notice This interface was available on the legacy L2StandardERC20 contract. It remains available
+ *         on the OptimismMintableERC20 contract for backwards compatibility.
+ */
+interface ILegacyMintableERC20 {
+    function l1Token() external returns (address);
+
     function mint(address _to, uint256 _amount) external;
 
     function burn(address _from, uint256 _amount) external;
-
-    function l1Token() external;
 }