@ethsub/sol

{ "contractName": "GenericHandler", "abi": [ { "inputs": [ { "internalType": "address", "name": "bridgeAddress", "type": "address" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "inputs": [], "name": "_bridgeAddress", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "_contractAddressToDepositFunctionDepositerOffset", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "_contractAddressToDepositFunctionSignature", "outputs": [ { "internalType": "bytes4", "name": "", "type": "bytes4" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "_contractAddressToExecuteFunctionSignature", "outputs": [ { "internalType": "bytes4", "name": "", "type": "bytes4" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "_contractAddressToResourceID", "outputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "_contractWhitelist", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "name": "_resourceIDToContractAddress", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "resourceID", "type": "bytes32" }, { "internalType": "address", "name": "contractAddress", "type": "address" }, { "internalType": "bytes4", "name": "depositFunctionSig", "type": "bytes4" }, { "internalType": "uint256", "name": "depositFunctionDepositerOffset", "type": "uint256" }, { "internalType": "bytes4", "name": "executeFunctionSig", "type": "bytes4" } ], "name": "setResource", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "resourceID", "type": "bytes32" }, { "internalType": "address", "name": "depositer", "type": "address" }, { "internalType": "bytes", "name": "data", "type": "bytes" } ], "name": "deposit", "outputs": [ { "internalType": "bytes", "name": "", "type": "bytes" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "resourceID", "type": "bytes32" }, { "internalType": "bytes", "name": "data", "type": "bytes" } ], "name": "executeProposal", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.6.12+commit.27d51765\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"bridgeAddress\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"inputs\":[],\"name\":\"_bridgeAddress\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"_contractAddressToDepositFunctionDepositerOffset\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"_contractAddressToDepositFunctionSignature\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"_contractAddressToExecuteFunctionSignature\",\"outputs\":[{\"internalType\":\"bytes4\",\"name\":\"\",\"type\":\"bytes4\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"_contractAddressToResourceID\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"_contractWhitelist\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"_resourceIDToContractAddress\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"resourceID\",\"type\":\"bytes32\"},{\"internalType\":\"address\",\"name\":\"depositer\",\"type\":\"address\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"deposit\",\"outputs\":[{\"internalType\":\"bytes\",\"name\":\"\",\"type\":\"bytes\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"resourceID\",\"type\":\"bytes32\"},{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"executeProposal\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"resourceID\",\"type\":\"bytes32\"},{\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"},{\"internalType\":\"bytes4\",\"name\":\"depositFunctionSig\",\"type\":\"bytes4\"},{\"internalType\":\"uint256\",\"name\":\"depositFunctionDepositerOffset\",\"type\":\"uint256\"},{\"internalType\":\"bytes4\",\"name\":\"executeFunctionSig\",\"type\":\"bytes4\"}],\"name\":\"setResource\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"author\":\"ChainSafe Systems.\",\"kind\":\"dev\",\"methods\":{\"constructor\":{\"params\":{\"bridgeAddress\":\"Contract address of previously deployed Bridge.\"}},\"deposit(bytes32,address,bytes)\":{\"params\":{\"data\":\"Consists of: {resourceID}, {lenMetaData}, and {metaData} all padded to 32 bytes.\",\"depositer\":\"Address of the account making deposit in the Bridge contract.\",\"resourceID\":\"ResourceID used to find address of contract to be used for deposit.\"},\"returns\":{\"_0\":\"Returns the raw bytes returned from the call to {contractAddress}.\"}},\"executeProposal(bytes32,bytes)\":{\"params\":{\"data\":\"Consists of {resourceID}, {lenMetaData}, and {metaData}.\"}},\"setResource(bytes32,address,bytes4,uint256,bytes4)\":{\"params\":{\"contractAddress\":\"Address of contract to be called when a deposit is made and a deposited is executed.\",\"depositFunctionDepositerOffset\":\"Depositer address position offset in the metadata, in bytes.\",\"depositFunctionSig\":\"Function signature of method to be called in {contractAddress} when a deposit is made.\",\"executeFunctionSig\":\"Function signature of method to be called in {contractAddress} when a deposit is executed.\",\"resourceID\":\"ResourceID to be used when making deposits.\"}}},\"title\":\"Handles generic deposits and deposit executions.\",\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{\"deposit(bytes32,address,bytes)\":{\"notice\":\"A deposit is initiatied by making a deposit in the Bridge contract.Data passed into the function should be constructed as follows: len(data) uint256 bytes 0 - 32 data bytes bytes 64 - END{contractAddress} is required to be whitelistedIf {_contractAddressToDepositFunctionSignature}[{contractAddress}] is set, {metaData} is expected to consist of needed function arguments.\"},\"executeProposal(bytes32,bytes)\":{\"notice\":\"Proposal execution should be initiated when a proposal is finalized in the Bridge contract.Data passed into the function should be constructed as follows: len(data) uint256 bytes 0 - 32 data bytes bytes 32 - END{contractAddress} is required to be whitelistedIf {_contractAddressToExecuteFunctionSignature}[{contractAddress}] is set, {metaData} is expected to consist of needed function arguments.\"},\"setResource(bytes32,address,bytes4,uint256,bytes4)\":{\"notice\":\"First verifies {_resourceIDToContractAddress}[{resourceID}] and {_contractAddressToResourceID}[{contractAddress}] are not already set, then sets {_resourceIDToContractAddress} with {contractAddress}, {_contractAddressToResourceID} with {resourceID}, {_contractAddressToDepositFunctionSignature} with {depositFunctionSig}, {_contractAddressToDepositFunctionDepositerOffset} with {depositFunctionDepositerOffset}, {_contractAddressToExecuteFunctionSignature} with {executeFunctionSig}, and {_contractWhitelist} to true for {contractAddress}.\"}},\"notice\":\"This contract is intended to be used with the Bridge contract.\",\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/handlers/GenericHandler.sol\":\"GenericHandler\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"project:/contracts/handlers/GenericHandler.sol\":{\"keccak256\":\"0x6d0039f35c896c5a217b9cb147b7627b9980382cdc86fabef6a34c051ae0785f\",\"license\":\"LGPL-3.0-only\",\"urls\":[\"bzz-raw://9412770b7555bdb49ec0e370ee4ccd84035de105383f077bc7872b70b6f9d421\",\"dweb:/ipfs/QmYmCbF2oceeXN3kqo7qYKJeLoAdkNEs8Pcm5Zu6uzHw4K\"]},\"project:/contracts/interfaces/IGenericHandler.sol\":{\"keccak256\":\"0xb08694c5d5e003ab884d7f22fd616d9603ae60a9d8d48901feb2c2daebfe0d40\",\"license\":\"LGPL-3.0-only\",\"urls\":[\"bzz-raw://310082dd159a2b23c4cf8589a19ef3e31146d2879145c452e4edf63b11389008\",\"dweb:/ipfs/QmRzAnt66RzitcJrwTfxQeK1X1GSo9TEQF7y3WWbYZYxGS\"]}},\"version\":1}", "bytecode": 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"source": "// SPDX-License-Identifier: LGPL-3.0-only\npragma solidity 0.6.12;\npragma experimental ABIEncoderV2;\n\nimport \"../interfaces/IGenericHandler.sol\";\n\n/**\n @title Handles generic deposits and deposit executions.\n @author ChainSafe Systems.\n @notice This contract is intended to be used with the Bridge contract.\n */\ncontract GenericHandler is IGenericHandler {\n address public immutable _bridgeAddress;\n\n // resourceID => contract address\n mapping (bytes32 => address) public _resourceIDToContractAddress;\n\n // contract address => resourceID\n mapping (address => bytes32) public _contractAddressToResourceID;\n\n // contract address => deposit function signature\n mapping (address => bytes4) public _contractAddressToDepositFunctionSignature;\n\n // contract address => depositer address position offset in the metadata\n mapping (address => uint256) public _contractAddressToDepositFunctionDepositerOffset;\n\n // contract address => execute proposal function signature\n mapping (address => bytes4) public _contractAddressToExecuteFunctionSignature;\n\n // token contract address => is whitelisted\n mapping (address => bool) public _contractWhitelist;\n\n modifier onlyBridge() {\n _onlyBridge();\n _;\n }\n\n function _onlyBridge() private view {\n require(msg.sender == _bridgeAddress, \"sender must be bridge contract\");\n }\n\n /**\n @param bridgeAddress Contract address of previously deployed Bridge.\n */\n constructor(\n address bridgeAddress\n ) public {\n _bridgeAddress = bridgeAddress;\n }\n\n /**\n @notice First verifies {_resourceIDToContractAddress}[{resourceID}] and\n {_contractAddressToResourceID}[{contractAddress}] are not already set,\n then sets {_resourceIDToContractAddress} with {contractAddress},\n {_contractAddressToResourceID} with {resourceID},\n {_contractAddressToDepositFunctionSignature} with {depositFunctionSig},\n {_contractAddressToDepositFunctionDepositerOffset} with {depositFunctionDepositerOffset},\n {_contractAddressToExecuteFunctionSignature} with {executeFunctionSig},\n and {_contractWhitelist} to true for {contractAddress}.\n @param resourceID ResourceID to be used when making deposits.\n @param contractAddress Address of contract to be called when a deposit is made and a deposited is executed.\n @param depositFunctionSig Function signature of method to be called in {contractAddress} when a deposit is made.\n @param depositFunctionDepositerOffset Depositer address position offset in the metadata, in bytes.\n @param executeFunctionSig Function signature of method to be called in {contractAddress} when a deposit is executed.\n */\n function setResource(\n bytes32 resourceID,\n address contractAddress,\n bytes4 depositFunctionSig,\n uint256 depositFunctionDepositerOffset,\n bytes4 executeFunctionSig\n ) external onlyBridge override {\n\n _setResource(resourceID, contractAddress, depositFunctionSig, depositFunctionDepositerOffset, executeFunctionSig);\n }\n\n /**\n @notice A deposit is initiatied by making a deposit in the Bridge contract.\n @param resourceID ResourceID used to find address of contract to be used for deposit.\n @param depositer Address of the account making deposit in the Bridge contract.\n @param data Consists of: {resourceID}, {lenMetaData}, and {metaData} all padded to 32 bytes.\n @notice Data passed into the function should be constructed as follows:\n len(data) uint256 bytes 0 - 32\n data bytes bytes 64 - END\n @notice {contractAddress} is required to be whitelisted\n @notice If {_contractAddressToDepositFunctionSignature}[{contractAddress}] is set,\n {metaData} is expected to consist of needed function arguments.\n @return Returns the raw bytes returned from the call to {contractAddress}.\n */\n function deposit(bytes32 resourceID, address depositer, bytes calldata data) external onlyBridge returns (bytes memory) {\n uint256 lenMetadata;\n bytes memory metadata;\n\n lenMetadata = abi.decode(data, (uint256));\n metadata = bytes(data[32:32 + lenMetadata]);\n\n address contractAddress = _resourceIDToContractAddress[resourceID];\n uint256 depositerOffset = _contractAddressToDepositFunctionDepositerOffset[contractAddress];\n if (depositerOffset > 0) {\n uint256 metadataDepositer;\n // Skipping 32 bytes of length prefix and depositerOffset bytes.\n assembly {\n metadataDepositer := mload(add(add(metadata, 32), depositerOffset))\n }\n // metadataDepositer contains 0xdepositerAddressdepositerAddressdeposite************************\n // Shift it 12 bytes right: 0x000000000000000000000000depositerAddressdepositerAddressdeposite\n require(depositer == address(metadataDepositer >> 96), 'incorrect depositer in the data');\n }\n\n require(_contractWhitelist[contractAddress], \"provided contractAddress is not whitelisted\");\n\n bytes4 sig = _contractAddressToDepositFunctionSignature[contractAddress];\n if (sig != bytes4(0)) {\n bytes memory callData = abi.encodePacked(sig, metadata);\n (bool success, bytes memory handlerResponse) = contractAddress.call(callData);\n require(success, \"call to contractAddress failed\");\n return handlerResponse;\n }\n }\n\n /**\n @notice Proposal execution should be initiated when a proposal is finalized in the Bridge contract.\n @param data Consists of {resourceID}, {lenMetaData}, and {metaData}.\n @notice Data passed into the function should be constructed as follows:\n len(data) uint256 bytes 0 - 32\n data bytes bytes 32 - END\n @notice {contractAddress} is required to be whitelisted\n @notice If {_contractAddressToExecuteFunctionSignature}[{contractAddress}] is set,\n {metaData} is expected to consist of needed function arguments.\n */\n function executeProposal(bytes32 resourceID, bytes calldata data) external onlyBridge {\n uint256 lenMetadata;\n bytes memory metaData;\n\n lenMetadata = abi.decode(data, (uint256));\n metaData = bytes(data[32:32 + lenMetadata]);\n\n address contractAddress = _resourceIDToContractAddress[resourceID];\n require(_contractWhitelist[contractAddress], \"provided contractAddress is not whitelisted\");\n\n bytes4 sig = _contractAddressToExecuteFunctionSignature[contractAddress];\n if (sig != bytes4(0)) {\n bytes memory callData = abi.encodePacked(sig, metaData);\n (bool success,) = contractAddress.call(callData);\n require(success, \"delegatecall to contractAddress failed\");\n }\n }\n\n function _setResource(\n bytes32 resourceID,\n address contractAddress,\n bytes4 depositFunctionSig,\n uint256 depositFunctionDepositerOffset,\n bytes4 executeFunctionSig\n ) internal {\n _resourceIDToContractAddress[resourceID] = contractAddress;\n _contractAddressToResourceID[contractAddress] = resourceID;\n _contractAddressToDepositFunctionSignature[contractAddress] = depositFunctionSig;\n _contractAddressToDepositFunctionDepositerOffset[contractAddress] = depositFunctionDepositerOffset;\n _contractAddressToExecuteFunctionSignature[contractAddress] = executeFunctionSig;\n\n _contractWhitelist[contractAddress] = true;\n }\n}\n", "sourcePath": "/home/sigo/w/deer/ethsub/packages/sol/contracts/handlers/GenericHandler.sol", "ast": { "absolutePath": "project:/contracts/handlers/GenericHandler.sol", "exportedSymbols": { "GenericHandler": [ 9644 ] }, "id": 9645, "license": "LGPL-3.0-only", "nodeType": "SourceUnit", "nodes": [ { "id": 9299, "literals": [ "solidity", "0.6", ".12" ], "nodeType": "PragmaDirective", "src": "42:23:47" }, { "id": 9300, "literals": [ "experimental", "ABIEncoderV2" ], "nodeType": "PragmaDirective", "src": "66:33:47" }, { "absolutePath": "project:/contracts/interfaces/IGenericHandler.sol", "file": "../interfaces/IGenericHandler.sol", "id": 9301, "nodeType": "ImportDirective", "scope": 9645, "sourceUnit": 9859, "src": "101:43:47", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 9303, "name": "IGenericHandler", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 9858, "src": "347:15:47", "typeDescriptions": { "typeIdentifier": "t_contract$_IGenericHandler_$9858", "typeString": "contract IGenericHandler" } }, "id": 9304, "nodeType": "InheritanceSpecifier", "src": "347:15:47" } ], "contractDependencies": [ 9858 ], "contractKind": "contract", "documentation": { "id": 9302, "nodeType": "StructuredDocumentation", "src": "146:173:47", "text": "@title Handles generic deposits and deposit executions.\n@author ChainSafe Systems.\n@notice This contract is intended to be used with the Bridge contract." }, "fullyImplemented": true, "id": 9644, "linearizedBaseContracts": [ 9644, 9858 ], "name": "GenericHandler", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "functionSelector": "318c136e", "id": 9306, "mutability": "immutable", "name": "_bridgeAddress", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9644, "src": "369:39:47", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9305, "name": "address", "nodeType": "ElementaryTypeName", "src": "369:7:47", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "c54c2a11", "id": 9310, "mutability": "mutable", "name": "_resourceIDToContractAddress", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9644, "src": "453:64:47", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_address_$", "typeString": "mapping(bytes32 => address)" }, "typeName": { "id": 9309, "keyType": { "id": 9307, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "462:7:47", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Mapping", "src": "453:28:47", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_address_$", "typeString": "mapping(bytes32 => address)" }, "valueType": { "id": 9308, "name": "address", "nodeType": "ElementaryTypeName", "src": "473:7:47", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "ec97d3b4", "id": 9314, "mutability": "mutable", "name": "_contractAddressToResourceID", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9644, "src": "562:64:47", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bytes32_$", "typeString": "mapping(address => bytes32)" }, "typeName": { "id": 9313, "keyType": { "id": 9311, "name": "address", "nodeType": "ElementaryTypeName", "src": "571:7:47", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "562:28:47", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bytes32_$", "typeString": "mapping(address => bytes32)" }, "valueType": { "id": 9312, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "582:7:47", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "cb624463", "id": 9318, "mutability": "mutable", "name": "_contractAddressToDepositFunctionSignature", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9644, "src": "687:77:47", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bytes4_$", "typeString": "mapping(address => bytes4)" }, "typeName": { "id": 9317, "keyType": { "id": 9315, "name": "address", "nodeType": "ElementaryTypeName", "src": "696:7:47", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "687:27:47", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bytes4_$", "typeString": "mapping(address => bytes4)" }, "valueType": { "id": 9316, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "707:6:47", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "aa50800b", "id": 9322, "mutability": "mutable", "name": "_contractAddressToDepositFunctionDepositerOffset", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9644, "src": "848:84:47", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "typeName": { "id": 9321, "keyType": { "id": 9319, "name": "address", "nodeType": "ElementaryTypeName", "src": "857:7:47", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "848:28:47", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 9320, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "868:7:47", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "a5c3a985", "id": 9326, "mutability": "mutable", "name": "_contractAddressToExecuteFunctionSignature", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9644, "src": "1002:77:47", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bytes4_$", "typeString": "mapping(address => bytes4)" }, "typeName": { "id": 9325, "keyType": { "id": 9323, "name": "address", "nodeType": "ElementaryTypeName", "src": "1011:7:47", "typeDescriptions": { "typeIden