{ "contractName": "KeepFactorySelector", "abi": [ { "constant": true, "inputs": [ { "internalType": "uint256", "name": "_seed", "type": "uint256" }, { "internalType": "contract IBondedECDSAKeepFactory", "name": "_keepStakedFactory", "type": "address" }, { "internalType": "contract IBondedECDSAKeepFactory", "name": "_fullyBackedFactory", "type": "address" } ], "name": "selectFactory", "outputs": [ { "internalType": "contract IBondedECDSAKeepFactory", "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.17+commit.d19bba13\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_seed\",\"type\":\"uint256\"},{\"internalType\":\"contract IBondedECDSAKeepFactory\",\"name\":\"_keepStakedFactory\",\"type\":\"address\"},{\"internalType\":\"contract IBondedECDSAKeepFactory\",\"name\":\"_fullyBackedFactory\",\"type\":\"address\"}],\"name\":\"selectFactory\",\"outputs\":[{\"internalType\":\"contract IBondedECDSAKeepFactory\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"methods\":{\"selectFactory(uint256,address,address)\":{\"params\":{\"_fullyBackedFactory\":\"Fully backed, ETH-bond-only based keep factory.\",\"_keepStakedFactory\":\"Regular, KEEP-stake based keep factory.\",\"_seed\":\"Request seed.\"},\"return\":\"The selected keep factory.\"}},\"title\":\"Bonded ECDSA keep factory selection strategy.\"},\"userdoc\":{\"methods\":{\"selectFactory(uint256,address,address)\":{\"notice\":\"Selects keep factory for the new deposit.\"}},\"notice\":\"The strategy defines the algorithm for selecting a factory. tBTC uses two bonded ECDSA keep factories, selecting one of them for each new deposit being opened.\"}},\"settings\":{\"compilationTarget\":{\"/home/runner/work/tbtc/tbtc/solidity/contracts/system/KeepFactorySelection.sol\":\"KeepFactorySelector\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/home/runner/work/tbtc/tbtc/solidity/contracts/system/KeepFactorySelection.sol\":{\"keccak256\":\"0x26d39ca282d933df1c349ab52be37c19af9f4f8d24f0fb25700ef221a8294d6f\",\"urls\":[\"bzz-raw://fc25c76e38172ca0e12f51aecc53ed498c3b1a6900b0f358f3404c5df22fc40b\",\"dweb:/ipfs/QmQvHwrufw7UaKkVmf15xvFXgSFYzNua2abFpQLjzibnV3\"]},\"@keep-network/keep-ecdsa/contracts/api/IBondedECDSAKeepFactory.sol\":{\"keccak256\":\"0x07ae883d2a0f5b7fe2c0b055206f565da51b04d1ca574ae4d4da3a19e6badcdb\",\"urls\":[\"bzz-raw://038b4f5b45b2d676ef7411b69cadd490d5789e3d245afd78aaa72177ce042572\",\"dweb:/ipfs/QmRaBYU4HCDSH33a3gpLN4t2TsyNaFRxLKv3WeAZEgk9Rr\"]}},\"version\":1}", "bytecode": "0x", "deployedBytecode": "0x", "sourceMap": "", "deployedSourceMap": "", "source": "pragma solidity 0.5.17;\n\nimport {\n IBondedECDSAKeepFactory\n} from \"@keep-network/keep-ecdsa/contracts/api/IBondedECDSAKeepFactory.sol\";\n\n/// @title Bonded ECDSA keep factory selection strategy.\n/// @notice The strategy defines the algorithm for selecting a factory. tBTC\n/// uses two bonded ECDSA keep factories, selecting one of them for each new\n/// deposit being opened.\ninterface KeepFactorySelector {\n /// @notice Selects keep factory for the new deposit.\n /// @param _seed Request seed.\n /// @param _keepStakedFactory Regular, KEEP-stake based keep factory.\n /// @param _fullyBackedFactory Fully backed, ETH-bond-only based keep factory.\n /// @return The selected keep factory.\n function selectFactory(\n uint256 _seed,\n IBondedECDSAKeepFactory _keepStakedFactory,\n IBondedECDSAKeepFactory _fullyBackedFactory\n ) external view returns (IBondedECDSAKeepFactory);\n}\n\n/// @title Bonded ECDSA keep factory selection library.\n/// @notice tBTC uses two bonded ECDSA keep factories: one based on KEEP stake\n/// and ETH bond, and another based only on ETH bond. The library holds\n/// a reference to both factories as well as a reference to a selection strategy\n/// deciding which factory to choose for the new deposit being opened.\nlibrary KeepFactorySelection {\n struct Storage {\n uint256 requestCounter;\n IBondedECDSAKeepFactory selectedFactory;\n KeepFactorySelector factorySelector;\n // Standard ECDSA keep factory: KEEP stake and ETH bond.\n // Guaranteed to be set for initialized factory.\n IBondedECDSAKeepFactory keepStakedFactory;\n // Fully backed ECDSA keep factory: ETH bond only.\n IBondedECDSAKeepFactory fullyBackedFactory;\n }\n\n /// @notice Initializes the library with the default KEEP-stake-based\n /// factory. The default factory is guaranteed to be set and this function\n /// must be called when creating contract using this library.\n /// @dev This function can be called only one time.\n function initialize(\n Storage storage _self,\n IBondedECDSAKeepFactory _defaultFactory\n ) public {\n require(\n address(_self.keepStakedFactory) == address(0),\n \"Already initialized\"\n );\n\n _self.keepStakedFactory = IBondedECDSAKeepFactory(_defaultFactory);\n _self.selectedFactory = _self.keepStakedFactory;\n }\n\n /// @notice Returns the selected keep factory.\n /// This function guarantees that the same factory is returned for every\n /// call until selectFactoryAndRefresh is executed. This lets to evaluate\n /// open keep fee estimate on the same factory that will be used later for\n /// opening a new keep (fee estimate and open keep requests are two\n /// separate calls).\n /// @return Selected keep factory. The same vale will be returned for every\n /// call of this function until selectFactoryAndRefresh is executed.\n function selectFactory(Storage storage _self)\n public\n view\n returns (IBondedECDSAKeepFactory)\n {\n return _self.selectedFactory;\n }\n\n /// @notice Returns the selected keep factory and refreshes the choice\n /// for the next select call. The value returned by this function has been\n /// evaluated during the previous call. This lets to return the same value\n /// from selectFactory and selectFactoryAndRefresh, thus, allowing to use\n /// the same factory for which open keep fee estimate was evaluated (fee\n /// estimate and open keep requests are two separate calls).\n /// @return Selected keep factory.\n function selectFactoryAndRefresh(Storage storage _self)\n external\n returns (IBondedECDSAKeepFactory)\n {\n IBondedECDSAKeepFactory factory = selectFactory(_self);\n refreshFactory(_self);\n\n return factory;\n }\n\n /// @notice Sets the minimum bondable value required from the operator to\n /// join the sortition pool for tBTC.\n /// @param _minimumBondableValue The minimum bond value the application\n /// requires from a single keep.\n /// @param _groupSize Number of signers in the keep.\n /// @param _honestThreshold Minimum number of honest keep signers.\n function setMinimumBondableValue(\n Storage storage _self,\n uint256 _minimumBondableValue,\n uint256 _groupSize,\n uint256 _honestThreshold\n ) external {\n if (address(_self.keepStakedFactory) != address(0)) {\n _self.keepStakedFactory.setMinimumBondableValue(\n _minimumBondableValue,\n _groupSize,\n _honestThreshold\n );\n }\n if (address(_self.fullyBackedFactory) != address(0)) {\n _self.fullyBackedFactory.setMinimumBondableValue(\n _minimumBondableValue,\n _groupSize,\n _honestThreshold\n );\n }\n }\n\n /// @notice Refreshes the keep factory choice. If either ETH-bond-only factory\n /// or selection strategy is not set, KEEP-stake factory is selected.\n /// Otherwise, calls selection strategy providing addresses of both\n /// factories to make a choice. Additionally, passes the selection seed\n /// evaluated from the current request counter value.\n function refreshFactory(Storage storage _self) internal {\n if (\n address(_self.fullyBackedFactory) == address(0) ||\n address(_self.factorySelector) == address(0)\n ) {\n // KEEP-stake factory is guaranteed to be there. If the selection\n // can not be performed, this is the default choice.\n _self.selectedFactory = _self.keepStakedFactory;\n return;\n }\n\n _self.requestCounter++;\n uint256 seed =\n uint256(\n keccak256(abi.encodePacked(address(this), _self.requestCounter))\n );\n _self.selectedFactory = _self.factorySelector.selectFactory(\n seed,\n _self.keepStakedFactory,\n _self.fullyBackedFactory\n );\n\n require(\n _self.selectedFactory == _self.keepStakedFactory ||\n _self.selectedFactory == _self.fullyBackedFactory,\n \"Factory selector returned unknown factory\"\n );\n }\n\n /// @notice Sets addresses of the keep factories and the selection strategy\n /// contracts.\n /// KeepFactorySelection can work without the keep factory selection\n /// strategy set, always selecting the default KEEP-stake-based factory.\n /// Once both fully-backed keep factory and factory selection strategy are\n /// set, KEEP-stake-based factory is no longer the default choice and it is\n /// up to the selection strategy to decide which factory should be chosen.\n /// @dev Can be called multiple times! It's responsibility of a contract\n /// using this library to limit and protect updates.\n /// @param _keepStakedFactory Address of the regular, KEEP-stake based keep\n /// factory.\n /// @param _fullyBackedFactory Address of the fully-backed, ETH-bond-only based\n /// keep factory.\n /// @param _factorySelector Address of the keep factory selection strategy.\n function setFactories(\n Storage storage _self,\n address _keepStakedFactory,\n address _fullyBackedFactory,\n address _factorySelector\n ) internal {\n require(\n address(_keepStakedFactory) != address(0),\n \"Invalid KEEP-staked factory address\"\n );\n\n _self.keepStakedFactory = IBondedECDSAKeepFactory(_keepStakedFactory);\n _self.fullyBackedFactory = IBondedECDSAKeepFactory(_fullyBackedFactory);\n _self.factorySelector = KeepFactorySelector(_factorySelector);\n }\n}\n", "sourcePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/system/KeepFactorySelection.sol", "ast": { "absolutePath": 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"t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "src": "2344:47:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "id": 6360, "nodeType": "ExpressionStatement", "src": "2344:47:20" } ] }, "documentation": "@notice Initializes the library with the default KEEP-stake-based\n factory. The default factory is guaranteed to be set and this function\n must be called when creating contract using this library.\n @dev This function can be called only one time.", "id": 6362, "implemented": true, "kind": "function", "modifiers": [], "name": "initialize", "nodeType": "FunctionDefinition", "parameters": { "id": 6332, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6329, "name": "_self", "nodeType": "VariableDeclaration", "scope": 6362, "src": "2051:21:20", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" }, "typeName": { "contractScope": null, "id": 6328, "name": "Storage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6327, "src": "2051:7:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 6331, "name": "_defaultFactory", "nodeType": "VariableDeclaration", "scope": 6362, "src": "2082:39:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" }, "typeName": { "contractScope": null, "id": 6330, "name": "IBondedECDSAKeepFactory", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 11467, "src": "2082:23:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "value": null, "visibility": "internal" } ], "src": "2041:86:20" }, "returnParameters": { "id": 6333, "nodeType": "ParameterList", "parameters": [], "src": "2135:0:20" }, "scope": 6575, "src": "2022:376:20", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 6372, "nodeType": "Block", "src": "3059:45:20", "statements": [ { "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6369, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6364, "src": "3076:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6370, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "selectedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6320, "src": "3076:21:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "functionReturnParameters": 6368, "id": 6371, "nodeType": "Return", "src": "3069:28:20" } ] }, "documentation": "@notice Returns the selected keep factory.\n This function guarantees that the same factory is returned for every\n call until selectFactoryAndRefresh is executed. This lets to evaluate\n open keep fee estimate on the same factory that will be used later for\n opening a new keep (fee estimate and open keep requests are two\n separate calls).\n @return Selected keep factory. The same vale will be returned for every\n call of this function until selectFactoryAndRefresh is executed.", "id": 6373, "implemented": true, "kind": "function", "modifiers": [], "name": "selectFactory", "nodeType": "FunctionDefinition", "parameters": { "id": 6365, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6364, "name": "_self", "nodeType": "VariableDeclaration", "scope": 6373, "src": "2962:21:20", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" }, "typeName": { "contractScope": null, "id": 6363, "name": "Storage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6327, "src": "2962:7:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" } }, "value": null, "visibility": "internal" } ], "src": "2961:23:20" }, "returnParameters": { "id": 6368, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6367, "name": "", "nodeType": "VariableDeclaration", "scope": 6373, "src": "3030:23:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" }, "typeName": { "contractScope": null, "id": 6366, "name": "IBondedECDSAKeepFactory", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 11467, "src": "3030:23:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "value": null, "visibility": "internal" } ], "src": "3029:25:20" }, "scope": 6575, "src": "2939:165:20", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 6392, "nodeType": "Block", "src": "3721:127:20", "statements": [ { "assignments": [ 6381 ], "declarations": [ { "constant": false, "id": 6381, "name": "factory", "nodeType": "VariableDeclaration", "scope": 6392, "src": "3731:31:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" }, "typeName": { "contractScope": null, "id": 6380, "name": "IBondedECDSAKeepFactory", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 11467, "src": "3731:23:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "value": null, "visibility": "internal" } ], "id": 6385, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6383, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6375, "src": "3779:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } ], "id": 6382, "name": "selectFactory", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6373, "src": "3765:13:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_struct$_Storage_$6327_storage_ptr_$returns$_t_contract$_IBondedECDSAKeepFactory_$11467_$", "typeString": "function (struct KeepFactorySelection.Storage storage pointer) view returns (contract IBondedECDSAKeepFactory)" } }, "id": 6384, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3765:20:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "nodeType": "VariableDeclarationStatement", "src": "3731:54:20" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6387, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6375, "src": "3810:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } ], "id": 6386, "name": "refreshFactory", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6527, "src": "3795:14:20", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_struct$_Storage_$6327_storage_ptr_$returns$__$", "typeString": "function (struct KeepFactorySelection.Storage storage pointer)" } }, "id": 6388, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3795:21:20", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6389, "nodeType": "ExpressionStatement", "src": "3795:21:20" }, { "expression": { "argumentTypes": null, "id": 6390, "name": "factory", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6381, "src": "3834:7:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "functionReturnParameters": 6379, "id": 6391, "nodeType": "Return", "src": "3827:14:20" } ] }, "documentation": "@notice Returns the selected keep factory and refreshes the choice\n for the next select call. The value returned by this function has been\n evaluated during the previous call. This lets to return the same value\n from selectFactory and selectFactoryAndRefresh, thus, allowing to use\n the same factory for which open keep fee estimate was evaluated (fee\n estimate and open keep requests are two separate calls).\n @return Selected keep factory.", "id": 6393, "implemented": true, "kind": "function", "modifiers": [], "name": "selectFactoryAndRefresh", "nodeType": "FunctionDefinition", "parameters": { "id": 6376, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6375, "name": "_self", "nodeType": "VariableDeclaration", "scope": 6393, "src": "3635:21:20", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" }, "typeName": { "contractScope": null, "id": 6374, "name": "Storage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6327, "src": "3635:7:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" } }, "value": null, "visibility": "internal" } ], "src": "3634:23:20" }, "returnParameters": { "id": 6379, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6378, "name": "", "nodeType": "VariableDeclaration", "scope": 6393, "src": "3692:23:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" }, "typeName": { "contractScope": null, "id": 6377, "name": "IBondedECDSAKeepFactory", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 11467, "src": "3692:23:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "value": null, "visibility": "internal" } ], "src": "3691:25:20" }, "scope": 6575, "src": "3602:246:20", "stateMutability": "nonpayable", "superFunction": null, "visibility": "external" }, { "body": { "id": 6444, "nodeType": "Block", "src": "4395:505:20", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 6411, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6405, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6395, "src": "4417:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6406, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "keepStakedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6324, "src": "4417:23:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } ], "id": 6404, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4409:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 6407, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4409:32:20", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 6409, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4453:1:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 6408, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4445:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 6410, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4445:10:20", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "4409:46:20", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 6423, "nodeType": "IfStatement", "src": "4405:239:20", "trueBody": { "id": 6422, "nodeType": "Block", "src": "4457:187:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6417, "name": "_minimumBondableValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6397, "src": "4536:21:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 6418, "name": "_groupSize", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6399, "src": "4575:10:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 6419, "name": "_honestThreshold", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6401, "src": "4603:16:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6412, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6395, "src": "4471:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6415, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "keepStakedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6324, "src": "4471:23:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "id": 6416, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "setMinimumBondableValue", "nodeType": "MemberAccess", "referencedDeclaration": 11466, "src": "4471:47:20", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_uint256_$_t_uint256_$_t_uint256_$returns$__$", "typeString": "function (uint256,uint256,uint256) external" } }, "id": 6420, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4471:162:20", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6421, "nodeType": "ExpressionStatement", "src": "4471:162:20" } ] } }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 6431, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6425, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6395, "src": "4665:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6426, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "fullyBackedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6326, "src": "4665:24:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } ], "id": 6424, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4657:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 6427, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4657:33:20", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 6429, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4702:1:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 6428, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4694:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 6430, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4694:10:20", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "4657:47:20", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 6443, "nodeType": "IfStatement", "src": "4653:241:20", "trueBody": { "id": 6442, "nodeType": "Block", "src": "4706:188:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6437, "name": "_minimumBondableValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6397, "src": "4786:21:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 6438, "name": "_groupSize", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6399, "src": "4825:10:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 6439, "name": "_honestThreshold", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6401, "src": "4853:16:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6432, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6395, "src": "4720:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6435, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "fullyBackedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6326, "src": "4720:24:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "id": 6436, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "setMinimumBondableValue", "nodeType": "MemberAccess", "referencedDeclaration": 11466, "src": "4720:48:20", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_uint256_$_t_uint256_$_t_uint256_$returns$__$", "typeString": "function (uint256,uint256,uint256) external" } }, "id": 6440, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4720:163:20", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6441, "nodeType": "ExpressionStatement", "src": "4720:163:20" } ] } } ] }, "documentation": "@notice Sets the minimum bondable value required from the operator to\n join the sortition pool for tBTC.\n @param _minimumBondableValue The minimum bond value the application\n requires from a single keep.\n @param _groupSize Number of signers in the keep.\n @param _honestThreshold Minimum number of honest keep signers.", "id": 6445, "implemented": true, "kind": "function", "modifiers": [], "name": "setMinimumBondableValue", "nodeType": "FunctionDefinition", "parameters": { "id": 6402, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6395, "name": "_self", "nodeType": "VariableDeclaration", "scope": 6445, "src": "4257:21:20", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" }, "typeName": { "contractScope": null, "id": 6394, "name": "Storage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6327, "src": "4257:7:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 6397, "name": "_minimumBondableValue", "nodeType": "VariableDeclaration", "scope": 6445, "src": "4288:29:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6396, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4288:7:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 6399, "name": "_groupSize", "nodeType": "VariableDeclaration", "scope": 6445, "src": "4327:18:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6398, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4327:7:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 6401, "name": "_honestThreshold", "nodeType": "VariableDeclaration", "scope": 6445, "src": "4355:24:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6400, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4355:7:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4247:138:20" }, "returnParameters": { "id": 6403, "nodeType": "ParameterList", "parameters": [], "src": "4395:0:20" }, "scope": 6575, "src": "4215:685:20", "stateMutability": "nonpayable", "superFunction": null, "visibility": "external" }, { "body": { "id": 6526, "nodeType": "Block", "src": "5325:947:20", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 6466, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 6457, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6451, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "5360:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6452, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "fullyBackedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6326, "src": "5360:24:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } ], "id": 6450, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5352:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 6453, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5352:33:20", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 6455, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5397:1:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 6454, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5389:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 6456, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5389:10:20", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "5352:47:20", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 6465, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6459, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "5423:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6460, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "factorySelector", "nodeType": "MemberAccess", "referencedDeclaration": 6322, "src": "5423:21:20", "typeDescriptions": { "typeIdentifier": "t_contract$_KeepFactorySelector_$6316", "typeString": "contract KeepFactorySelector" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_KeepFactorySelector_$6316", "typeString": "contract KeepFactorySelector" } ], "id": 6458, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5415:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 6461, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5415:30:20", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 6463, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5457:1:20", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 6462, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5449:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 6464, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5449:10:20", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "5415:44:20", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "5352:107:20", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 6476, "nodeType": "IfStatement", "src": "5335:370:20", "trueBody": { "id": 6475, "nodeType": "Block", "src": "5470:235:20", "statements": [ { "expression": { "argumentTypes": null, "id": 6472, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6467, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "5627:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6469, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "selectedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6320, "src": "5627:21:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6470, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "5651:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6471, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "keepStakedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6324, "src": "5651:23:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "src": "5627:47:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "id": 6473, "nodeType": "ExpressionStatement", "src": "5627:47:20" }, { "expression": null, "functionReturnParameters": 6449, "id": 6474, "nodeType": "Return", "src": "5688:7:20" } ] } }, { "expression": { "argumentTypes": null, "id": 6480, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "++", "prefix": false, "src": "5715:22:20", "subExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6477, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "5715:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6479, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "requestCounter", "nodeType": "MemberAccess", "referencedDeclaration": 6318, "src": "5715:20:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6481, "nodeType": "ExpressionStatement", "src": "5715:22:20" }, { "assignments": [ 6483 ], "declarations": [ { "constant": false, "id": 6483, "name": "seed", "nodeType": "VariableDeclaration", "scope": 6526, "src": "5747:12:20", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6482, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5747:7:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6496, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6489, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18474, "src": "5834:4:20", "typeDescriptions": { "typeIdentifier": "t_contract$_KeepFactorySelection_$6575", "typeString": "library KeepFactorySelection" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_KeepFactorySelection_$6575", "typeString": "library KeepFactorySelection" } ], "id": 6488, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5826:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 6490, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5826:13:20", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6491, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "5841:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6492, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "requestCounter", "nodeType": "MemberAccess", "referencedDeclaration": 6318, "src": "5841:20:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 6486, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18347, "src": "5809:3:20", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 6487, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodePacked", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5809:16:20", "typeDescriptions": { "typeIdentifier": "t_function_abiencodepacked_pure$__$returns$_t_bytes_memory_ptr_$", "typeString": "function () pure returns (bytes memory)" } }, "id": 6493, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5809:53:20", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 6485, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18354, "src": "5799:9:20", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 6494, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5799:64:20", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "id": 6484, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5774:7:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint256" }, "id": 6495, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5774:103:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "5747:130:20" }, { "expression": { "argumentTypes": null, "id": 6509, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6497, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "5887:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6499, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "selectedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6320, "src": "5887:21:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6503, "name": "seed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6483, "src": "5960:4:20", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6504, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "5978:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6505, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "keepStakedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6324, "src": "5978:23:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6506, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "6015:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6507, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "fullyBackedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6326, "src": "6015:24:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" }, { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6500, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "5911:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6501, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "factorySelector", "nodeType": "MemberAccess", "referencedDeclaration": 6322, "src": "5911:21:20", "typeDescriptions": { "typeIdentifier": "t_contract$_KeepFactorySelector_$6316", "typeString": "contract KeepFactorySelector" } }, "id": 6502, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "selectFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6315, "src": "5911:35:20", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_uint256_$_t_contract$_IBondedECDSAKeepFactory_$11467_$_t_contract$_IBondedECDSAKeepFactory_$11467_$returns$_t_contract$_IBondedECDSAKeepFactory_$11467_$", "typeString": "function (uint256,contract IBondedECDSAKeepFactory,contract IBondedECDSAKeepFactory) view external returns (contract IBondedECDSAKeepFactory)" } }, "id": 6508, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5911:138:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "src": "5887:162:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "id": 6510, "nodeType": "ExpressionStatement", "src": "5887:162:20" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 6522, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" }, "id": 6516, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6512, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "6081:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6513, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "selectedFactory", "nodeType": "MemberAccess", "referencedDeclaration": 6320, "src": "6081:21:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6514, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6447, "src": "6106:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage storage pointer" } }, "id": 6515, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, 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If either ETH-bond-only factory\n or selection strategy is not set, KEEP-stake factory is selected.\n Otherwise, calls selection strategy providing addresses of both\n factories to make a choice. Additionally, passes the selection seed\n evaluated from the current request counter value.", "id": 6527, "implemented": true, "kind": "function", "modifiers": [], "name": "refreshFactory", "nodeType": "FunctionDefinition", "parameters": { "id": 6448, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6447, "name": "_self", "nodeType": "VariableDeclaration", "scope": 6527, "src": "5293:21:20", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" }, "typeName": { "contractScope": null, "id": 6446, "name": "Storage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6327, "src": "5293:7:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" } }, "value": null, "visibility": "internal" } ], "src": "5292:23:20" }, "returnParameters": { "id": 6449, "nodeType": "ParameterList", "parameters": [], "src": "5325:0:20" }, "scope": 6575, "src": "5269:1003:20", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 6573, "nodeType": "Block", "src": "7357:372:20", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 6545, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6540, "name": "_keepStakedFactory", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6531, "src": "7396:18:20", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 6539, "isConstant": false, "isLValue": false, "isPure": 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{ "typeIdentifier": "t_stringliteral_02fab22c78c731a4c9fe62b46e7e5c928ec59e705bde95646ae4333884ae4acb", "typeString": "literal_string \"Invalid KEEP-staked factory address\"" }, "value": "Invalid KEEP-staked factory address" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_02fab22c78c731a4c9fe62b46e7e5c928ec59e705bde95646ae4333884ae4acb", "typeString": "literal_string \"Invalid KEEP-staked factory address\"" } ], "id": 6538, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 18363, 18364 ], "referencedDeclaration": 18364, "src": "7367:7:20", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 6547, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7367:123:20", 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IBondedECDSAKeepFactory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6553, "name": "_keepStakedFactory", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6531, "src": "7551:18:20", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 6552, "name": "IBondedECDSAKeepFactory", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11467, "src": "7527:23:20", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IBondedECDSAKeepFactory_$11467_$", "typeString": "type(contract IBondedECDSAKeepFactory)" } }, "id": 6554, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7527:43:20", "typeDescriptions": 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"isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7607:44:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "src": "7580:71:20", "typeDescriptions": { "typeIdentifier": "t_contract$_IBondedECDSAKeepFactory_$11467", "typeString": "contract IBondedECDSAKeepFactory" } }, "id": 6564, "nodeType": "ExpressionStatement", "src": "7580:71:20" }, { "expression": { "argumentTypes": null, "id": 6571, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6565, "name": "_self", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6529, "src": "7661:5:20", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct 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"typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_KeepFactorySelector_$6316_$", "typeString": "type(contract KeepFactorySelector)" } }, "id": 6570, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7685:37:20", "typeDescriptions": { "typeIdentifier": "t_contract$_KeepFactorySelector_$6316", "typeString": "contract KeepFactorySelector" } }, "src": "7661:61:20", "typeDescriptions": { "typeIdentifier": "t_contract$_KeepFactorySelector_$6316", "typeString": "contract KeepFactorySelector" } }, "id": 6572, "nodeType": "ExpressionStatement", "src": "7661:61:20" } ] }, "documentation": "@notice Sets addresses of the keep factories and the selection strategy\n contracts.\n KeepFactorySelection can work without the keep factory selection\n strategy set, always selecting the default KEEP-stake-based factory.\n Once both fully-backed keep factory and factory selection strategy are\n set, KEEP-stake-based factory is no longer the default choice and it is\n up to the selection strategy to decide which factory should be chosen.\n @dev Can be called multiple times! It's responsibility of a contract\n using this library to limit and protect updates.\n @param _keepStakedFactory Address of the regular, KEEP-stake based keep\n factory.\n @param _fullyBackedFactory Address of the fully-backed, ETH-bond-only based\n keep factory.\n @param _factorySelector Address of the keep factory selection strategy.", "id": 6574, "implemented": true, "kind": "function", "modifiers": [], "name": "setFactories", "nodeType": "FunctionDefinition", "parameters": { "id": 6536, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6529, "name": "_self", "nodeType": "VariableDeclaration", "scope": 6574, "src": "7213:21:20", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_struct$_Storage_$6327_storage_ptr", "typeString": "struct KeepFactorySelection.Storage" }, "typeName": { "contractScope": null, "id": 6528, "name": "Storage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6327, "src": 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"visibility": "internal" } ], "scope": 6576, "src": "1274:6457:20" } ], "src": "0:7732:20" }, "legacyAST": { "attributes": { "absolutePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/system/KeepFactorySelection.sol", "exportedSymbols": { "KeepFactorySelection": [ 6575 ], "KeepFactorySelector": [ 6316 ] } }, "children": [ { "attributes": { "literals": [ "solidity", "0.5", ".17" ] }, "id": 6302, "name": "PragmaDirective", "src": "0:23:20" }, { "attributes": { "SourceUnit": 11468, "absolutePath": "@keep-network/keep-ecdsa/contracts/api/IBondedECDSAKeepFactory.sol", "file": "@keep-network/keep-ecdsa/contracts/api/IBondedECDSAKeepFactory.sol", "scope": 6576, "symbolAliases": [ { "foreign": 6303, "local": null } ], "unitAlias": "" }, "id": 6304, "name": "ImportDirective", "src": "25:113:20" }, { "attributes": { "baseContracts": [ null ], "contractDependencies": [ null ], "contractKind": "interface", "documentation": "@title Bonded ECDSA keep factory selection strategy.\n @notice The strategy defines the algorithm for selecting a factory. tBTC\n uses two bonded ECDSA keep factories, selecting one of them for each new\n deposit being opened.", "fullyImplemented": false, "linearizedBaseContracts": [ 6316 ], "name": "KeepFactorySelector", "scope": 6576 }, "children": [ { "attributes": { "body": null, "documentation": "@notice Selects keep factory for the new deposit.\n @param _seed Request seed.\n @param _keepStakedFactory Regular, KEEP-stake based keep factory.\n @param _fullyBackedFactory Fully backed, ETH-bond-only based keep factory.\n @return The selected keep factory.", "implemented": false, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "selectFactory", "scope": 6316, "stateMutability": "view", "superFunction": null, "visibility": "external" }, "children": [ { "children": [ { "attributes": { "constant": false, "name": "_seed", "scope": 6315, "stateVariable": false, "storageLocation": "default", "type": "uint256", "value": null, 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This lets to evaluate\n open keep fee estimate on the same factory that will be used later for\n opening a new keep (fee estimate and open keep requests are two\n separate calls).\n @return Selected keep factory. The same vale will be returned for every\n call of this function until selectFactoryAndRefresh is executed.", "implemented": true, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "selectFactory", "scope": 6575, "stateMutability": "view", "superFunction": null, "visibility": "public" }, "children": [ { "children": [ { "attributes": { "constant": false, "name": "_self", "scope": 6373, "stateVariable": false, "storageLocation": "storage", "type": "struct KeepFactorySelection.Storage", "value": null, "visibility": "internal" }, "children": [ { "attributes": { "contractScope": null, "name": "Storage", "referencedDeclaration": 6327, "type": "struct KeepFactorySelection.Storage" }, "id": 6363, "name": "UserDefinedTypeName", "src": "2962:7:20" } ], "id": 6364, "name": "VariableDeclaration", "src": "2962:21:20" } ], "id": 6365, "name": "ParameterList", "src": "2961:23:20" }, { "children": [ { "attributes": { "constant": false, "name": "", "scope": 6373, "stateVariable": false, "storageLocation": "default", "type": "contract IBondedECDSAKeepFactory", "value": null, "visibility": "internal" }, "children": [ { "attributes": { "contractScope": null, "name": "IBondedECDSAKeepFactory", "referencedDeclaration": 11467, "type": "contract IBondedECDSAKeepFactory" }, "id": 6366, "name": "UserDefinedTypeName", "src": "3030:23:20" } ], "id": 6367, "name": "VariableDeclaration", "src": "3030:23:20" } ], "id": 6368, "name": "ParameterList", "src": "3029:25:20" }, { "children": [ { "attributes": { "functionReturnParameters": 6368 }, "children": [ { "attributes": { "argumentTypes": null, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "member_name": "selectedFactory", "referencedDeclaration": 6320, "type": "contract IBondedECDSAKeepFactory" }, "children": [ { "attributes": { "argumentTypes": null, "overloadedDeclarations": [ null ], "referencedDeclaration": 6364, "type": "struct KeepFactorySelection.Storage storage pointer", "value": "_self" }, "id": 6369, "name": "Identifier", "src": "3076:5:20" } ], "id": 6370, "name": "MemberAccess", "src": "3076:21:20" } ], "id": 6371, "name": "Return", "src": "3069:28:20" } ], "id": 6372, "name": "Block", "src": "3059:45:20" } ], "id": 6373, "name": "FunctionDefinition", "src": "2939:165:20" }, { "attributes": { "documentation": "@notice Returns the selected keep factory and refreshes the choice\n for the next select call. The value returned by this function has been\n evaluated during the previous call. 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called multiple times! It's responsibility of a contract\n using this library to limit and protect updates.\n @param _keepStakedFactory Address of the regular, KEEP-stake based keep\n factory.\n @param _fullyBackedFactory Address of the fully-backed, ETH-bond-only based\n keep factory.\n @param _factorySelector Address of the keep factory selection strategy.", "implemented": true, "isConstructor": false, "kind": "function", "modifiers": [ null ], "name": "setFactories", "scope": 6575, "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, "children": [ { "children": [ { "attributes": { "constant": false, "name": "_self", "scope": 6574, "stateVariable": false, "storageLocation": "storage", "type": "struct KeepFactorySelection.Storage", "value": null, "visibility": "internal" }, "children": [ { "attributes": { "contractScope": null, "name": "Storage", "referencedDeclaration": 6327, "type": "struct KeepFactorySelection.Storage" }, "id": 6528, "name": "UserDefinedTypeName", "src": 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"selectFactory(uint256,address,address)": { "notice": "Selects keep factory for the new deposit." } }, "notice": "The strategy defines the algorithm for selecting a factory. tBTC uses two bonded ECDSA keep factories, selecting one of them for each new deposit being opened." } }