{ "contractName": "Custodian", "abi": [ { "inputs": [ { "internalType": "address", "name": "_cecActor", "type": "address" }, { "internalType": "contract ICECRegistry", "name": "_cecRegistry", "type": "address" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "assetId", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "collateralizer", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "collateralAmount", "type": "uint256" } ], "name": "LockedCollateral", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "assetId", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "collateralizer", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "returnedAmount", "type": "uint256" } ], "name": "ReturnedCollateral", "type": "event" }, { "inputs": [], "name": "cecActor", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "cecRegistry", "outputs": [ { "internalType": "contract ICECRegistry", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "object", "type": "bytes32" } ], "name": "decodeCollateralObject", "outputs": [ { "internalType": "address", "name": "", "type": "address" }, { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "pure", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "collateralToken", "type": "address" }, { "internalType": "uint256", "name": "collateralAmount", "type": "uint256" } ], "name": "encodeCollateralAsObject", "outputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "stateMutability": "pure", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "assetId", "type": "bytes32" }, { "components": [ { "internalType": "enum ContractType", "name": "contractType", "type": "uint8" }, { "internalType": "enum Calendar", "name": "calendar", "type": "uint8" }, { "internalType": "enum ContractRole", "name": "contractRole", "type": "uint8" }, { "internalType": "enum DayCountConvention", "name": "dayCountConvention", "type": "uint8" }, { "internalType": "enum BusinessDayConvention", "name": "businessDayConvention", "type": "uint8" }, { "internalType": "enum EndOfMonthConvention", "name": "endOfMonthConvention", "type": "uint8" }, { "internalType": "enum ContractPerformance", "name": "creditEventTypeCovered", "type": "uint8" }, { "internalType": "enum FeeBasis", "name": "feeBasis", "type": "uint8" }, { "internalType": "uint256", "name": "statusDate", "type": "uint256" }, { "internalType": "uint256", "name": "maturityDate", "type": "uint256" }, { "internalType": "int256", "name": "notionalPrincipal", "type": "int256" }, { "internalType": "int256", "name": "feeRate", "type": "int256" }, { "internalType": "int256", "name": "coverageOfCreditEnhancement", "type": "int256" }, { "components": [ { "internalType": "bytes32", "name": "object", "type": "bytes32" }, { "internalType": "bytes32", "name": "object2", "type": "bytes32" }, { "internalType": "enum ContractReferenceType", "name": "_type", "type": "uint8" }, { "internalType": "enum ContractReferenceRole", "name": "role", "type": "uint8" } ], "internalType": "struct ContractReference", "name": "contractReference_1", "type": "tuple" }, { "components": [ { "internalType": "bytes32", "name": "object", "type": "bytes32" }, { "internalType": "bytes32", "name": "object2", "type": "bytes32" }, { "internalType": "enum ContractReferenceType", "name": "_type", "type": "uint8" }, { "internalType": "enum ContractReferenceRole", "name": "role", "type": "uint8" } ], "internalType": "struct ContractReference", "name": "contractReference_2", "type": "tuple" } ], "internalType": "struct CECTerms", "name": "terms", "type": "tuple" }, { "components": [ { "internalType": "address", "name": "creatorObligor", "type": "address" }, { "internalType": "address", "name": "creatorBeneficiary", "type": "address" }, { "internalType": "address", "name": "counterpartyObligor", "type": "address" }, { "internalType": "address", "name": "counterpartyBeneficiary", "type": "address" } ], "internalType": "struct AssetOwnership", "name": "ownership", "type": "tuple" } ], "name": "lockCollateral", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "assetId", "type": "bytes32" } ], "name": "returnCollateral", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.6.11+commit.5ef660b1\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_cecActor\",\"type\":\"address\"},{\"internalType\":\"contract ICECRegistry\",\"name\":\"_cecRegistry\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"bytes32\",\"name\":\"assetId\",\"type\":\"bytes32\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"collateralizer\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"collateralAmount\",\"type\":\"uint256\"}],\"name\":\"LockedCollateral\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"bytes32\",\"name\":\"assetId\",\"type\":\"bytes32\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"collateralizer\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"returnedAmount\",\"type\":\"uint256\"}],\"name\":\"ReturnedCollateral\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"cecActor\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"cecRegistry\",\"outputs\":[{\"internalType\":\"contract ICECRegistry\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"object\",\"type\":\"bytes32\"}],\"name\":\"decodeCollateralObject\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"collateralToken\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"collateralAmount\",\"type\":\"uint256\"}],\"name\":\"encodeCollateralAsObject\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"pure\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"assetId\",\"type\":\"bytes32\"},{\"components\":[{\"internalType\":\"enum ContractType\",\"name\":\"contractType\",\"type\":\"uint8\"},{\"internalType\":\"enum Calendar\",\"name\":\"calendar\",\"type\":\"uint8\"},{\"internalType\":\"enum ContractRole\",\"name\":\"contractRole\",\"type\":\"uint8\"},{\"internalType\":\"enum DayCountConvention\",\"name\":\"dayCountConvention\",\"type\":\"uint8\"},{\"internalType\":\"enum BusinessDayConvention\",\"name\":\"businessDayConvention\",\"type\":\"uint8\"},{\"internalType\":\"enum EndOfMonthConvention\",\"name\":\"endOfMonthConvention\",\"type\":\"uint8\"},{\"internalType\":\"enum ContractPerformance\",\"name\":\"creditEventTypeCovered\",\"type\":\"uint8\"},{\"internalType\":\"enum FeeBasis\",\"name\":\"feeBasis\",\"type\":\"uint8\"},{\"internalType\":\"uint256\",\"name\":\"statusDate\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"maturityDate\",\"type\":\"uint256\"},{\"internalType\":\"int256\",\"name\":\"notionalPrincipal\",\"type\":\"int256\"},{\"internalType\":\"int256\",\"name\":\"feeRate\",\"type\":\"int256\"},{\"internalType\":\"int256\",\"name\":\"coverageOfCreditEnhancement\",\"type\":\"int256\"},{\"components\":[{\"internalType\":\"bytes32\",\"name\":\"object\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"object2\",\"type\":\"bytes32\"},{\"internalType\":\"enum ContractReferenceType\",\"name\":\"_type\",\"type\":\"uint8\"},{\"internalType\":\"enum ContractReferenceRole\",\"name\":\"role\",\"type\":\"uint8\"}],\"internalType\":\"struct ContractReference\",\"name\":\"contractReference_1\",\"type\":\"tuple\"},{\"components\":[{\"internalType\":\"bytes32\",\"name\":\"object\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"object2\",\"type\":\"bytes32\"},{\"internalType\":\"enum ContractReferenceType\",\"name\":\"_type\",\"type\":\"uint8\"},{\"internalType\":\"enum ContractReferenceRole\",\"name\":\"role\",\"type\":\"uint8\"}],\"internalType\":\"struct ContractReference\",\"name\":\"contractReference_2\",\"type\":\"tuple\"}],\"internalType\":\"struct CECTerms\",\"name\":\"terms\",\"type\":\"tuple\"},{\"components\":[{\"internalType\":\"address\",\"name\":\"creatorObligor\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"creatorBeneficiary\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"counterpartyObligor\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"counterpartyBeneficiary\",\"type\":\"address\"}],\"internalType\":\"struct AssetOwnership\",\"name\":\"ownership\",\"type\":\"tuple\"}],\"name\":\"lockCollateral\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"assetId\",\"type\":\"bytes32\"}],\"name\":\"returnCollateral\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"lockCollateral(bytes32,(uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint256,uint256,int256,int256,int256,(bytes32,bytes32,uint8,uint8),(bytes32,bytes32,uint8,uint8)),(address,address,address,address))\":{\"details\":\"The collateralizer has to set allowance beforehand. The custodian increases allowance for the AssetActor by amount of collateral\",\"params\":{\"assetId\":\"id of the asset with collateral requirements\",\"ownership\":\"ownership of the asset\",\"terms\":\"terms of the asset containing the collateral requirements\"},\"returns\":{\"_0\":\"true if the collateral was locked by the Custodian\"}},\"returnCollateral(bytes32)\":{\"details\":\"resets allowance for the Asset Actor, reverts if state of the asset does not allow unlocking the collateral\",\"params\":{\"assetId\":\"id of the asset for which to return the collateral,\"},\"returns\":{\"_0\":\"true if the collateral was returned to the collateralizer\"}}},\"title\":\"Custodian\",\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{\"lockCollateral(bytes32,(uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint256,uint256,int256,int256,int256,(bytes32,bytes32,uint8,uint8),(bytes32,bytes32,uint8,uint8)),(address,address,address,address))\":{\"notice\":\"Locks the required collateral amount encoded in the second contract reference in the terms.\"},\"returnCollateral(bytes32)\":{\"notice\":\"Returns the entire collateral back to the collateralizer if collateral was not executed before the asset reached maturity or it returns the remaining collateral (not executed amount) after collateral was executed and settled\"}},\"notice\":\"Contract which holds the collateral of CEC (Credit Enhancement Collateral) assets.\",\"version\":1}},\"settings\":{\"compilationTarget\":{\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/Custodian/Custodian.sol\":\"Custodian\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/AssetRegistry/AccessControl/IAccessControl.sol\":{\"keccak256\":\"0xbbe1aada0583637e5ae8b0a09ae59d629c1da70bde5a3f291f5f0ed42440d091\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://36ab01d00a9ebd59822247cdc7bee3c70af062e2c9408e8f80e1656fc9d2761c\",\"dweb:/ipfs/QmSQzma4M2TDZup2dERJi368F8z9UQQ1zyUsq8e41hgg2F\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/AssetRegistry/IAssetRegistry.sol\":{\"keccak256\":\"0xe5b75a0d1ff75775c43bdd46fb55d0f28800b311a48f7064acda7d35036bf738\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://652d2218a7190f85e00372a5ade97895fc303b909f3b63398dbcfabf634adda9\",\"dweb:/ipfs/QmVV4Su9V2K4mYbquft5rqv7SSyR95RcHgU4E2iAceKW1j\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/AssetRegistry/IBaseRegistry.sol\":{\"keccak256\":\"0x62682585e8feaa25478d9aebe2f43861e36d67604adfd2dc23da8260a2f5728f\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://2ecdf3ac27c4425fee720cb2a744304678cac563d89cb21e43f8302a4864f013\",\"dweb:/ipfs/QmSL8qM6bytA7eN1cuBbBy3B5rNvmyALGExeGXUApTeA5N\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/AssetRegistry/Ownership/IOwnershipRegistry.sol\":{\"keccak256\":\"0x6e7d79031d9ab6d8366e767e96bbef6282cd9727956b0f6a70b70ba57799afc7\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://2d2e1e72ffc43ce52bb06eb5c5fa61d9dc14d40c33ac3035e5d881e0365aa722\",\"dweb:/ipfs/QmaQ1SqtsZtPHjtdSbGTwSJvRPu36d7S4ijyfUMYcto5uJ\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/AssetRegistry/Schedule/IScheduleRegistry.sol\":{\"keccak256\":\"0xe7e24ae32f711c7b4b60d1160cb085b4ba047ff07ccea2df3b4bf120c2385ed6\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://ea4f8bbb0a60f0b9484307c3ce880005e1d4e39c42fd07ca16dc263001584cdb\",\"dweb:/ipfs/Qmdo1tuJ93asEMGq74g38vxfRMmoxXogZZczHjuef2Mx8R\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/AssetRegistry/State/IStateRegistry.sol\":{\"keccak256\":\"0x1008f735ba366f9a638199d8ec4fa31b192c8745491527278d97717426d6d609\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://decc19c372fbefee7c369678114861def1c748748154966e2ee5e11e690b9039\",\"dweb:/ipfs/QmXjZhoNak7uUmYZMj7sAdijzsqLpDoh6T2bYcRDVgX6z6\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/AssetRegistry/Terms/ITermsRegistry.sol\":{\"keccak256\":\"0x62947ddd2743f2852e53dc10c9ce4a326e764e0bbffd92df216fcb32a0b0e3cd\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://0b90268d7fb6e7d133b5e9d008be62fe55d19930088ac547b15d31dcb8ab9ecd\",\"dweb:/ipfs/QmZGE66r4ML3msBMCtDbhsdVN3RxmDvnCMDkTn9mMfouqN\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/Conversions.sol\":{\"keccak256\":\"0x4482adab804008a2774b11036cc9ff6f42aa7f248d6b8ca922082bf090a736e5\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://e774c979286649c16d92eb4672c30c06fcbe7ddc053eee70088c4b28fc27e48c\",\"dweb:/ipfs/QmXqfezUnKVaKzA7Qs9BFC9yRKFTMwwxa778ofikE2hC1H\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/Custodian/Custodian.sol\":{\"keccak256\":\"0xf21ce7b2fe99163b6558f1d6fff470f78ff3552de2dfd5f496f0d711a02ca984\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://8f0657126115e0748354b26d5fa87e6836d1c91d9b7c3e017317871fb244335b\",\"dweb:/ipfs/QmPWcEn5TPd4uvG5SdcKGnmQh9kyWuJvjzBxY3djnvXZpp\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/Custodian/ICustodian.sol\":{\"keccak256\":\"0x82f2d39ff9cfeffbd348daa3737e3afb19726c56943fd513eeedd9589a1948c2\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://1881c11d6501d1d10cf29977f03ab1c6f9f57bf48819c293c5f4b2640b2d0a22\",\"dweb:/ipfs/QmXRwstHsC5tjjbvHCi5WuPTe6piwvKMpLzHHVnPvKobSs\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/SharedTypes.sol\":{\"keccak256\":\"0x5a918fdefe9bd357255bffcf75d325f0d23ccf7074533f8d6a80a62bfd60893e\",\"license\":\"Apache-2.0\",\"urls\":[\"bzz-raw://5c5fc68f47deab5b0cc572a8a1f7dba997e5a8bb13292ce3e4ee29540a3b1fd7\",\"dweb:/ipfs/QmeqcqcDYsgvbBH8XrHzURMuz9jQLEf4F2i5M59wYMCxgt\"]},\"/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/CEC/ICECRegistry.sol\":{\"keccak256\":\"0x6f7fe6894294f65e1b2f8b5cae6a42bd79e9f234701e5a6a10214ee736326e54\",\"li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"source": "// \"SPDX-License-Identifier: Apache-2.0\"\npragma solidity ^0.6.11;\npragma experimental ABIEncoderV2;\n\nimport \"openzeppelin-solidity/contracts/token/ERC20/IERC20.sol\";\nimport \"openzeppelin-solidity/contracts/utils/ReentrancyGuard.sol\";\nimport \"openzeppelin-solidity/contracts/math/SafeMath.sol\";\n\nimport \"../Conversions.sol\";\nimport \"../../CEC/ICECRegistry.sol\";\nimport \"./ICustodian.sol\";\n\n\n/**\n * @title Custodian\n * @notice Contract which holds the collateral of CEC (Credit Enhancement Collateral) assets.\n */\ncontract Custodian is ICustodian, ReentrancyGuard, Conversions {\n\n using SafeMath for uint256;\n\n event LockedCollateral(bytes32 indexed assetId, address collateralizer, uint256 collateralAmount);\n event ReturnedCollateral(bytes32 indexed assetId, address collateralizer, uint256 returnedAmount);\n\n address public cecActor;\n ICECRegistry public cecRegistry;\n mapping(bytes32 => bool) internal collateral;\n\n\n constructor(address _cecActor, ICECRegistry _cecRegistry) public {\n cecActor = _cecActor;\n cecRegistry = _cecRegistry;\n }\n\n /**\n * @notice Locks the required collateral amount encoded in the second contract\n * reference in the terms.\n * @dev The collateralizer has to set allowance beforehand. The custodian increases\n * allowance for the AssetActor by amount of collateral\n * @param assetId id of the asset with collateral requirements\n * @param terms terms of the asset containing the collateral requirements\n * @param ownership ownership of the asset\n * @return true if the collateral was locked by the Custodian\n */\n function lockCollateral(\n bytes32 assetId,\n CECTerms calldata terms,\n AssetOwnership calldata ownership\n )\n external\n override\n returns (bool)\n {\n require(\n terms.contractRole == ContractRole.BUY || terms.contractRole == ContractRole.SEL,\n \"Custodian.lockCollateral: INVALID_CONTRACT_ROLE\"\n );\n\n require(\n (terms.contractRole == ContractRole.BUY)\n ? ownership.counterpartyObligor == address(this)\n : ownership.creatorObligor == address(this),\n \"Custodian.lockCollateral: INVALID_OWNERSHIP\"\n );\n\n // derive address of collateralizer\n address collateralizer = (terms.contractRole == ContractRole.BUY)\n ? ownership.counterpartyBeneficiary\n : ownership.creatorBeneficiary;\n\n // decode token address and amount of collateral\n (address collateralToken, uint256 collateralAmount) = decodeCollateralObject(terms.contractReference_2.object);\n\n require(\n IERC20(collateralToken).allowance(collateralizer, address(this)) >= collateralAmount,\n \"Custodian.lockCollateral: INSUFFICIENT_ALLOWANCE\"\n );\n\n // try transferring collateral from collateralizer to the custodian\n require(\n IERC20(collateralToken).transferFrom(collateralizer, address(this), collateralAmount),\n \"Custodian.lockCollateral: TRANSFER_FAILED\"\n );\n\n // set allowance for AssetActor to later transfer collateral when XD is triggered\n uint256 allowance = IERC20(collateralToken).allowance(address(this), cecActor);\n require(\n IERC20(collateralToken).approve(cecActor, allowance.add(collateralAmount)),\n \"Custodian.lockCollateral: INCREASING_ALLOWANCE_FAILED\"\n );\n\n // register collateral for assetId\n collateral[assetId] = true;\n\n emit LockedCollateral(assetId, collateralizer, collateralAmount);\n\n return true;\n }\n\n /**\n * @notice Returns the entire collateral back to the collateralizer if collateral\n * was not executed before the asset reached maturity or it returns the remaining\n * collateral (not executed amount) after collateral was executed and settled\n * @dev resets allowance for the Asset Actor,\n * reverts if state of the asset does not allow unlocking the collateral\n * @param assetId id of the asset for which to return the collateral,\n * @return true if the collateral was returned to the collateralizer\n */\n function returnCollateral(\n bytes32 assetId\n )\n external\n override\n returns (bool)\n {\n require(\n collateral[assetId] == true,\n \"Custodian.returnCollateral: ENTRY_DOES_NOT_EXIST\"\n );\n\n ContractRole contractRole = ContractRole(cecRegistry.getEnumValueForTermsAttribute(assetId, \"contractRole\"));\n ContractReference memory contractReference_2 = cecRegistry.getContractReferenceValueForTermsAttribute(assetId, \"contractReference_2\");\n State memory state = cecRegistry.getState(assetId);\n AssetOwnership memory ownership = cecRegistry.getOwnership(assetId);\n\n // derive address of collateralizer\n address collateralizer = (contractRole == ContractRole.BUY)\n ? ownership.counterpartyBeneficiary\n : ownership.creatorBeneficiary;\n\n // decode token address and amount of collateral\n (address collateralToken, uint256 collateralAmount) = decodeCollateralObject(contractReference_2.object);\n\n // calculate amount to return\n uint256 notExecutedAmount;\n // if XD was triggerd\n if (state.exerciseDate != uint256(0)) {\n notExecutedAmount = collateralAmount.sub(\n (state.exerciseAmount >= 0) ? uint256(state.exerciseAmount) : uint256(-1 * state.exerciseAmount)\n );\n // if XD was not triggered and (reached maturity or was terminated)\n } else if (\n state.exerciseDate == uint256(0)\n && (state.contractPerformance == ContractPerformance.MD || state.contractPerformance == ContractPerformance.TD)\n ) {\n notExecutedAmount = collateralAmount;\n // throw if XD was not triggered and maturity is not reached\n } else {\n revert(\"Custodian.returnCollateral: COLLATERAL_CAN_NOT_BE_RETURNED\");\n }\n\n // reset allowance for AssetActor\n uint256 allowance = IERC20(collateralToken).allowance(address(this), cecActor);\n require(\n IERC20(collateralToken).approve(cecActor, allowance.sub(notExecutedAmount)),\n \"Custodian.returnCollateral: DECREASING_ALLOWANCE_FAILD\"\n );\n\n // try transferring amount back to the collateralizer\n require(\n IERC20(collateralToken).transfer(collateralizer, notExecutedAmount),\n \"Custodian.returnCollateral: TRANSFER_FAILED\"\n );\n\n emit ReturnedCollateral(assetId, collateralizer, notExecutedAmount);\n\n return true;\n }\n}\n", "sourcePath": "/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/Custodian/Custodian.sol", "ast": { "absolutePath": "/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/Custodian/Custodian.sol", "exportedSymbols": { "Custodian": [ 7452 ] }, "id": 7453, "license": "Apache-2.0", "nodeType": "SourceUnit", "nodes": [ { "id": 7057, "literals": [ "solidity", "^", "0.6", ".11" ], "nodeType": "PragmaDirective", "src": "41:24:23" }, { "id": 7058, "literals": [ "experimental", "ABIEncoderV2" ], "nodeType": "PragmaDirective", "src": "66:33:23" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC20/IERC20.sol", "file": "openzeppelin-solidity/contracts/token/ERC20/IERC20.sol", "id": 7059, "nodeType": "ImportDirective", "scope": 7453, "sourceUnit": 39446, "src": "101:64:23", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/utils/ReentrancyGuard.sol", "file": "openzeppelin-solidity/contracts/utils/ReentrancyGuard.sol", "id": 7060, "nodeType": "ImportDirective", "scope": 7453, "sourceUnit": 39592, "src": "166:67:23", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/math/SafeMath.sol", "file": "openzeppelin-solidity/contracts/math/SafeMath.sol", "id": 7061, "nodeType": "ImportDirective", "scope": 7453, "sourceUnit": 38682, "src": "234:59:23", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/Conversions.sol", "file": "../Conversions.sol", "id": 7062, "nodeType": "ImportDirective", "scope": 7453, "sourceUnit": 7056, "src": "295:28:23", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/CEC/ICECRegistry.sol", "file": "../../CEC/ICECRegistry.sol", "id": 7063, "nodeType": "ImportDirective", "scope": 7453, "sourceUnit": 9479, "src": "324:36:23", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/johannes/Documents/dev/actus-protocol/ap-monorepo/packages/ap-contracts/contracts/Core/Base/Custodian/ICustodian.sol", "file": "./ICustodian.sol", "id": 7064, "nodeType": "ImportDirective", "scope": 7453, "sourceUnit": 7476, "src": "361:26:23", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 7066, "name": "ICustodian", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 7475, "src": "534:10:23", "typeDescriptions": { "typeIdentifier": "t_contract$_ICustodian_$7475", "typeString": "contract ICustodian" } }, "id": 7067, "nodeType": "InheritanceSpecifier", "src": "534:10:23" }, { "arguments": null, "baseName": { "contractScope": null, "id": 7068, "name": "ReentrancyGuard", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 39591, "src": "546:15:23", "typeDescriptions": { "typeIdentifier": "t_contract$_ReentrancyGuard_$39591", "typeString": "contract ReentrancyGuard" } }, "id": 7069, "nodeType": "InheritanceSpecifier", "src": "546:15:23" }, { "arguments": null, "baseName": { "contractScope": null, "id": 7070, "name": "Conversions", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 7055, "src": "563:11:23", "typeDescriptions": { "typeIdentifier": "t_contract$_Conversions_$7055", "typeString": "contract Conversions" } }, "id": 7071, "nodeType": "InheritanceSpecifier", "src": "563:11:23" } ], "contractDependencies": [ 7055, 7475, 39591 ], "contractKind": "contract", "documentation": { "id": 7065, "nodeType": "StructuredDocumentation", "src": "390:121:23", "text": " @title Custodian\n @notice Contract which holds the collateral of CEC (Credit Enhancement Collateral) assets." }, "fullyImplemented": true, "id": 7452, "linearizedBaseContracts": [ 7452, 7055, 39591, 7475 ], "name": "Custodian", "nodeType": "ContractDefinition", "nodes": [ { "id": 7074, "libraryName": { "contractScope": null, "id": 7072, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 38681, "src": "588:8:23", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$38681", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "582:27:23", "typeName": { "id": 7073, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "601:7:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "anonymous": false, "documentation": null, "id": 7082, "name": "LockedCollateral", "nodeType": "EventDefinition", "parameters": { "id": 7081, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 7076, "indexed": true, "mutability": "mutable", "name": "assetId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7082, "src": "638:23:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 7075, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "638:7:23", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 7078, "indexed": false, "mutability": "mutable", "name": "collateralizer", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7082, "src": "663:22:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 7077, "name": "address", "nodeType": "ElementaryTypeName", "src": "663:7:23", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 7080, "indexed": false, "mutability": "mutable", "name": "collateralAmount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7082, "src": "687:24:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 7079, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "687:7:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "637:75:23" }, "src": "615:98:23" }, { "anonymous": false, "documentation": null, "id": 7090, "name": "ReturnedCollateral", "nodeType": "EventDefinition", "parameters": { "id": 7089, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 7084, "indexed": true, "mutability": "mutable", "name": "assetId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7090, "src": "743:23:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 7083, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "743:7:23", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 7086, "indexed": false, "mutability": "mutable", "name": "collateralizer", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7090, "src": "768:22:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 7085, "name": "address", "nodeType": "ElementaryTypeName", "src": "768:7:23", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 7088, "indexed": false, "mutability": "mutable", "name": "returnedAmount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7090, "src": "792:22:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 7087, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "792:7:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "742:73:23" }, "src": "718:98:23" }, { "constant": false, "functionSelector": "bceeadb9", "id": 7092, "mutability": "mutable", "name": "cecActor", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7452, "src": "822:23:23", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 7091, "name": "address", "nodeType": "ElementaryTypeName", "src": "822:7:23", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "b5b904ab", "id": 7094, "mutability": "mutable", "name": "cecRegistry", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7452, "src": "851:31:23", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_ICECRegistry_$9478", "typeString": "contract ICECRegistry" }, "typeName": { "contractScope": null, "id": 7093, "name": "ICECRegistry", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 9478, "src": "851:12:23", "typeDescriptions": { "typeIdentifier": "t_contract$_ICECRegistry_$9478", "typeString": "contract ICECRegistry" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 7098, "mutability": "mutable", "name": "collateral", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7452, "src": "888:44:23", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_bool_$", "typeString": "mapping(bytes32 => bool)" }, "typeName": { "id": 7097, "keyType": { "id": 7095, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "896:7:23", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Mapping", "src": "888:24:23", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_bool_$", "typeString": "mapping(bytes32 => bool)" }, "valueType": { "id": 7096, "name": "bool", "nodeType": "ElementaryTypeName", "src": "907:4:23", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } }, "value": null, "visibility": "internal" }, { "body": { "id": 7113, "nodeType": "Block", "src": "1005:73:23", "statements": [ { "expression": { "argumentTypes": null, "id": 7107, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 7105, "name": "cecActor", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7092, "src": "1015:8:23", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": 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7110, "name": "_cecRegistry", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7102, "src": "1059:12:23", "typeDescriptions": { "typeIdentifier": "t_contract$_ICECRegistry_$9478", "typeString": "contract ICECRegistry" } }, "src": "1045:26:23", "typeDescriptions": { "typeIdentifier": "t_contract$_ICECRegistry_$9478", "typeString": "contract ICECRegistry" } }, "id": 7112, "nodeType": "ExpressionStatement", "src": "1045:26:23" } ] }, "documentation": null, "id": 7114, "implemented": true, "kind": "constructor", "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 7103, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 7100, "mutability": "mutable", "name": "_cecActor", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7114, "src": "952:17:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 7099, "name": "address", "nodeType": "ElementaryTypeName", "src": "952:7:23", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 7102, "mutability": "mutable", "name": "_cecRegistry", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7114, "src": "971:25:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_ICECRegistry_$9478", "typeString": "contract ICECRegistry" }, "typeName": { "contractScope": null, "id": 7101, "name": "ICECRegistry", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 9478, "src": "971:12:23", "typeDescriptions": { "typeIdentifier": "t_contract$_ICECRegistry_$9478", "typeString": "contract ICECRegistry" } }, "value": null, "visibility": "internal" } ], "src": "951:46:23" }, "returnParameters": { "id": 7104, "nodeType": 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"referencedDeclaration": null, "src": "1865:16:23", "typeDescriptions": { "typeIdentifier": "t_enum$_ContractRole_$22539", "typeString": "enum ContractRole" } }, "src": "1843:38:23", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_enum$_ContractRole_$22539", "typeString": "enum ContractRole" }, "id": 7137, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 7133, "name": "terms", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7119, "src": "1885:5:23", "typeDescriptions": { "typeIdentifier": "t_struct$_CECTerms_$22799_calldata_ptr", "typeString": "struct CECTerms calldata" } }, "id": 7134, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, 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"typeString": "bool" } }, "src": "1843:80:23", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "437573746f6469616e2e6c6f636b436f6c6c61746572616c3a20494e56414c49445f434f4e54524143545f524f4c45", "id": 7139, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1937:49:23", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_a40f46fab5b2f65edfec7a45bfac4c0d207cd70932b4415ee3dfb8dbfc72f3e8", "typeString": "literal_string \"Custodian.lockCollateral: INVALID_CONTRACT_ROLE\"" }, "value": "Custodian.lockCollateral: INVALID_CONTRACT_ROLE" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_a40f46fab5b2f65edfec7a45bfac4c0d207cd70932b4415ee3dfb8dbfc72f3e8", "typeString": "literal_string \"Custodian.lockCollateral: INVALID_CONTRACT_ROLE\"" } ], "id": 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"kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3560:59:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 7260, "nodeType": "EmitStatement", "src": "3555:64:23" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 7261, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "3637:4:23", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 7126, "id": 7262, "nodeType": "Return", "src": "3630:11:23" } ] }, "documentation": { "id": 7115, "nodeType": "StructuredDocumentation", "src": "1084:531:23", "text": " @notice Locks the required collateral amount encoded in the second contract\n reference in the terms.\n @dev The collateralizer has to set allowance beforehand. The custodian increases\n allowance for the AssetActor by amount of collateral\n @param assetId id of the asset with collateral requirements\n @param terms terms of the asset containing the collateral requirements\n @param ownership ownership of the asset\n @return true if the collateral was locked by the Custodian" }, "functionSelector": "f1acef64", "id": 7264, "implemented": true, "kind": "function", "modifiers": [], "name": "lockCollateral", "nodeType": "FunctionDefinition", "overrides": { "id": 7123, "nodeType": "OverrideSpecifier", "overrides": [], "src": "1776:8:23" }, "parameters": { "id": 7122, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 7117, "mutability": "mutable", "name": "assetId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7264, "src": "1653:15:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 7116, "name": "bytes32", 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"1711:33:23", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_struct$_AssetOwnership_$7849_calldata_ptr", "typeString": "struct AssetOwnership" }, "typeName": { "contractScope": null, "id": 7120, "name": "AssetOwnership", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 7849, "src": "1711:14:23", "typeDescriptions": { "typeIdentifier": "t_struct$_AssetOwnership_$7849_storage_ptr", "typeString": "struct AssetOwnership" } }, "value": null, "visibility": "internal" } ], "src": "1643:107:23" }, "returnParameters": { "id": 7126, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 7125, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7264, "src": "1802:4:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 7124, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1802:4:23", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "1801:6:23" }, "scope": 7452, "src": "1620:2028:23", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "baseFunctions": [ 7474 ], "body": { "id": 7450, "nodeType": "Block", "src": "4316:2401:23", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 7278, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 7274, "name": "collateral", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7098, "src": "4347:10:23", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_bool_$", "typeString": "mapping(bytes32 => bool)" } }, "id": 7276, 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"ElementaryTypeName", "src": "5510:7:23", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 7366, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5510:34:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 7367, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "Conditional", "src": "5448:96:23", "trueExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 7356, "name": "state", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7301, "src": "5486:5:23", "typeDescriptions": { "typeIdentifier": "t_struct$_State_$22673_memory_ptr", "typeString": "struct State memory" } }, "id": 7357, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "exerciseAmount", "nodeType": "MemberAccess", "referencedDeclaration": 22662, "src": "5486:20:23", "typeDescriptions": { "typeIdentifier": "t_int256", "typeString": "int256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_int256", "typeString": "int256" } ], "id": 7355, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5478:7:23", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": { "id": 7354, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5478:7:23", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 7358, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5478:29:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 7347, "name": "collateralAmount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7330, "src": "5410:16:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 7348, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 38531, "src": "5410:20:23", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 7368, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5410:148:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5390:168:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 7370, "nodeType": "ExpressionStatement", "src": "5390:168:23" } ] } }, { "assignments": [ 7405 ], "declarations": [ { "constant": false, "id": 7405, "mutability": "mutable", "name": "allowance", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7450, "src": "6116:17:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 7404, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6116:7:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 7416, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 7412, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "6178:4:23", "typeDescriptions": { "typeIdentifier": "t_contract$_Custodian_$7452", "typeString": "contract Custodian" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_Custodian_$7452", "typeString": "contract Custodian" } ], "id": 7411, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "6170:7:23", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 7410, "name": "address", "nodeType": "ElementaryTypeName", "src": "6170:7:23", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 7413, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6170:13:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 7414, "name": "cecActor", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7092, "src": "6185:8:23", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 7407, "name": "collateralToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7328, "src": "6143:15:23", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 7406, "name": "IERC20", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 39445, "src": "6136:6:23", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC20_$39445_$", "typeString": "type(contract IERC20)" } }, "id": 7408, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6136:23:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$39445", "typeString": "contract IERC20" } }, "id": 7409, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "allowance", "nodeType": "MemberAccess", "referencedDeclaration": 39404, "src": "6136:33:23", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_address_$_t_address_$returns$_t_uint256_$", "typeString": "function (address,address) view external returns (uint256)" } }, "id": 7415, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6136:58:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "6116:78:23" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 7422, "name": "cecActor", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7092, "src": "6257:8:23", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 7425, "name": "notExecutedAmount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7337, "src": "6281:17:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 7423, "name": "allowance", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7405, "src": "6267:9:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 7424, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 38531, "src": "6267:13:23", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 7426, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6267:32:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 7419, "name": "collateralToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7328, "src": "6232:15:23", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 7418, "name": "IERC20", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 39445, "src": "6225:6:23", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC20_$39445_$", "typeString": "type(contract IERC20)" } }, "id": 7420, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6225:23:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$39445", "typeString": "contract IERC20" } }, "id": 7421, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "approve", "nodeType": "MemberAccess", "referencedDeclaration": 39414, "src": "6225:31:23", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 7427, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6225:75:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "437573746f6469616e2e72657475726e436f6c6c61746572616c3a2044454352454153494e475f414c4c4f57414e43455f4641494c44", "id": 7428, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "6314:56:23", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_9be65a01d1b00012e94a7400b7fad752e8ee46d162be90b61301384db7553a5a", "typeString": "literal_string \"Custodian.returnCollateral: DECREASING_ALLOWANCE_FAILD\"" }, "value": "Custodian.returnCollateral: DECREASING_ALLOWANCE_FAILD" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_9be65a01d1b00012e94a7400b7fad752e8ee46d162be90b61301384db7553a5a", "typeString": "literal_string \"Custodian.returnCollateral: DECREASING_ALLOWANCE_FAILD\"" } ], "id": 7417, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "6204:7:23", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 7429, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6204:176:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 7430, "nodeType": "ExpressionStatement", "src": "6204:176:23" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 7436, "name": "collateralizer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7315, "src": "6507:14:23", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 7437, "name": "notExecutedAmount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7337, "src": "6523:17:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 7433, "name": "collateralToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7328, "src": "6481:15:23", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 7432, "name": "IERC20", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 39445, "src": "6474:6:23", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC20_$39445_$", "typeString": "type(contract IERC20)" } }, "id": 7434, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6474:23:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$39445", "typeString": "contract IERC20" } }, "id": 7435, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "transfer", "nodeType": "MemberAccess", "referencedDeclaration": 39394, "src": "6474:32:23", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 7438, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6474:67:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "437573746f6469616e2e72657475726e436f6c6c61746572616c3a205452414e534645525f4641494c4544", "id": 7439, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "6555:45:23", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_12444819030d2c1a5e06af50c2b241ae56292449142ae93a4b3890db50763976", "typeString": "literal_string \"Custodian.returnCollateral: TRANSFER_FAILED\"" }, "value": "Custodian.returnCollateral: TRANSFER_FAILED" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_12444819030d2c1a5e06af50c2b241ae56292449142ae93a4b3890db50763976", "typeString": "literal_string \"Custodian.returnCollateral: TRANSFER_FAILED\"" } ], "id": 7431, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "6453:7:23", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 7440, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6453:157:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 7441, "nodeType": "ExpressionStatement", "src": "6453:157:23" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 7443, "name": "assetId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7267, "src": "6645:7:23", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 7444, "name": "collateralizer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7315, "src": "6654:14:23", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 7445, "name": "notExecutedAmount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7337, "src": "6670:17:23", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 7442, "name": "ReturnedCollateral", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 7090, "src": "6626:18:23", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_bytes32_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (bytes32,address,uint256)" } }, "id": 7446, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6626:62:23", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 7447, "nodeType": "EmitStatement", "src": "6621:67:23" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 7448, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "6706:4:23", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 7272, "id": 7449, "nodeType": "Return", "src": "6699:11:23" } ] }, "documentation": { "id": 7265, "nodeType": "StructuredDocumentation", "src": "3654:539:23", "text": " @notice Returns the entire collateral back to the collateralizer if collateral\n was not executed before the asset reached maturity or it returns the remaining\n collateral (not executed amount) after collateral was executed and settled\n @dev resets allowance for the Asset Actor,\n reverts if state of the asset does not allow unlocking the collateral\n @param assetId id of the asset for which to return the collateral,\n @return true if the collateral was returned to the collateralizer" }, "functionSelector": "44c4ea95", "id": 7451, "implemented": true, "kind": "function", "modifiers": [], "name": "returnCollateral", "nodeType": "FunctionDefinition", "overrides": { "id": 7269, "nodeType": "OverrideSpecifier", "overrides": [], "src": "4280:8:23" }, "parameters": { "id": 7268, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 7267, "mutability": "mutable", "name": "assetId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7451, "src": "4233:15:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 7266, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "4233:7:23", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "src": "4223:31:23" }, "returnParameters": { "id": 7272, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 7271, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 7451, "src": "4306:4:23", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 7270, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4306:4:23", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4305:6:23" }, "scope": 7452, "src": "4198:2519:23", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" } ], "scope": 7453, "src": "512:6207:23" } ], "src": "41:6679:23" }, "compiler": { "name": "solc", "version": "0.6.11+commit.5ef660b1.Emscripten.clang" }, "networks": { "4": { "events": { "0xfe470e985a95a6aaad262a20cf968addf9489c083d8659cde642f329d561a4e4": { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "assetId", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "collateralizer", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "collateralAmount", "type": "uint256" } ], "name": "LockedCollateral", "type": "event" }, "0x4131d43c7bc220691dd088c228cd19fcafb66a0d9abeab4d8893e3db4e480ca2": { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "assetId", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "collateralizer", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "returnedAmount", "type": "uint256" } ], "name": "ReturnedCollateral", "type": "event" } }, "links": {}, "address": "0x964F519D8e23B278F72CB9DB2efcE2770009fbBD", "transactionHash": "0x580ec2d562e63de99375a89b02bbe50a9078e7f294a86dec8d2a83c01d8ac01c" }, "5": { "events": { "0xfe470e985a95a6aaad262a20cf968addf9489c083d8659cde642f329d561a4e4": { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "assetId", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "collateralizer", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "collateralAmount", "type": "uint256" } ], "name": "LockedCollateral", "type": "event" }, "0x4131d43c7bc220691dd088c228cd19fcafb66a0d9abeab4d8893e3db4e480ca2": { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "assetId", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "collateralizer", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "returnedAmount", "type": "uint256" } ], "name": "ReturnedCollateral", "type": "event" } }, "links": {}, "address": "0xABA72379b1eaFD92b8Dde186E84Cb48530052cc1", "transactionHash": "0xa56f487adfa83d4e30e793eaeeab090aab929168f5c2dafba98e90f92b0b7da8" }, "1994": { "events": { "0xfe470e985a95a6aaad262a20cf968addf9489c083d8659cde642f329d561a4e4": { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "assetId", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "collateralizer", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "collateralAmount", "type": "uint256" } ], "name": "LockedCollateral", "type": "event" }, "0x4131d43c7bc220691dd088c228cd19fcafb66a0d9abeab4d8893e3db4e480ca2": { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "assetId", "type": "bytes32" }, { "indexed": false, "internalType": "address", "name": "collateralizer", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "returnedAmount", "type": "uint256" } ], "name": "ReturnedCollateral", "type": "event" } }, "links": {}, "address": "0x7Ad8F74b3079530e614D43cB27DCC1eAb8976576", "transactionHash": "0x0d1b8104a965a95a76444576b0dfcd422fbc376ccc548a625cadf7602690ce3c" } }, "schemaVersion": "3.2.0", "updatedAt": "2020-08-12T09:47:17.745Z", "devdoc": { "kind": "dev", "methods": { "lockCollateral(bytes32,(uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint256,uint256,int256,int256,int256,(bytes32,bytes32,uint8,uint8),(bytes32,bytes32,uint8,uint8)),(address,address,address,address))": { "details": "The collateralizer has to set allowance beforehand. The custodian increases allowance for the AssetActor by amount of collateral", "params": { "assetId": "id of the asset with collateral requirements", "ownership": "ownership of the asset", "terms": "terms of the asset containing the collateral requirements" }, "returns": { "_0": "true if the collateral was locked by the Custodian" } }, "returnCollateral(bytes32)": { "details": "resets allowance for the Asset Actor, reverts if state of the asset does not allow unlocking the collateral", "params": { "assetId": "id of the asset for which to return the collateral," }, "returns": { "_0": "true if the collateral was returned to the collateralizer" } } }, "title": "Custodian", "version": 1 }, "userdoc": { "kind": "user", "methods": { "lockCollateral(bytes32,(uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint256,uint256,int256,int256,int256,(bytes32,bytes32,uint8,uint8),(bytes32,bytes32,uint8,uint8)),(address,address,address,address))": { "notice": "Locks the required collateral amount encoded in the second contract reference in the terms." }, "returnCollateral(bytes32)": { "notice": "Returns the entire collateral back to the collateralizer if collateral was not executed before the asset reached maturity or it returns the remaining collateral (not executed amount) after collateral was executed and settled" } }, "notice": "Contract which holds the collateral of CEC (Credit Enhancement Collateral) assets.", "version": 1 } }