{ "contractName": "KernelProxy", "abi": [ { "constant": true, "inputs": [ { "name": "", "type": "bytes32" }, { "name": "", "type": "bytes32" } ], "name": "apps", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "isDepositable", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "recoveryVaultAppId", "outputs": [ { "name": "", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "inputs": [ { "name": "_kernelImpl", "type": "address" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "payable": true, "stateMutability": "payable", "type": "fallback" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "sender", "type": "address" }, { "indexed": false, "name": "value", "type": "uint256" } ], "name": "ProxyDeposit", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "namespace", "type": "bytes32" }, { "indexed": true, "name": "appId", "type": "bytes32" }, { "indexed": false, "name": "app", "type": "address" } ], "name": "SetApp", "type": "event" }, { "constant": true, "inputs": [], "name": "proxyType", "outputs": [ { "name": "proxyTypeId", "type": "uint256" } ], "payable": false, "stateMutability": "pure", "type": "function" }, { "constant": true, "inputs": [], "name": "implementation", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "bytecode": 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"source": "pragma solidity 0.4.24;\n\nimport \"./IKernel.sol\";\nimport \"./KernelConstants.sol\";\nimport \"./KernelStorage.sol\";\nimport \"../common/DepositableDelegateProxy.sol\";\nimport \"../common/IsContract.sol\";\n\n\ncontract KernelProxy is IKernelEvents, KernelStorage, KernelAppIds, KernelNamespaceConstants, IsContract, DepositableDelegateProxy {\n /**\n * @dev KernelProxy is a proxy contract to a kernel implementation. The implementation\n * can update the reference, which effectively upgrades the contract\n * @param _kernelImpl Address of the contract used as implementation for kernel\n */\n constructor(IKernel _kernelImpl) public {\n require(isContract(address(_kernelImpl)));\n apps[KERNEL_CORE_NAMESPACE][KERNEL_CORE_APP_ID] = _kernelImpl;\n\n // Note that emitting this event is important for verifying that a KernelProxy instance\n // was never upgraded to a malicious Kernel logic contract over its lifespan.\n // This starts the \"chain of trust\", that can be followed through later SetApp() events\n // emitted during kernel upgrades.\n emit SetApp(KERNEL_CORE_NAMESPACE, KERNEL_CORE_APP_ID, _kernelImpl);\n }\n\n /**\n * @dev ERC897, whether it is a forwarding (1) or an upgradeable (2) proxy\n */\n function proxyType() public pure returns (uint256 proxyTypeId) {\n return UPGRADEABLE;\n }\n\n /**\n * @dev ERC897, the address the proxy would delegate calls to\n */\n function implementation() public view returns (address) {\n return apps[KERNEL_CORE_NAMESPACE][KERNEL_CORE_APP_ID];\n }\n}\n", "sourcePath": "@aragon/os/contracts/kernel/KernelProxy.sol", "ast": { "absolutePath": "@aragon/os/contracts/kernel/KernelProxy.sol", "exportedSymbols": { "KernelProxy": [ 13182 ] }, "id": 13183, "nodeType": "SourceUnit", "nodes": [ { "id": 13116, "literals": [ "solidity", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:23:54" }, { "absolutePath": "@aragon/os/contracts/kernel/IKernel.sol", "file": "./IKernel.sol", "id": 13117, "nodeType": "ImportDirective", "scope": 13183, "sourceUnit": 12601, "src": "25:23:54", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/kernel/KernelConstants.sol", "file": "./KernelConstants.sol", "id": 13118, "nodeType": "ImportDirective", "scope": 13183, "sourceUnit": 13115, "src": "49:31:54", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/kernel/KernelStorage.sol", "file": "./KernelStorage.sol", "id": 13119, "nodeType": "ImportDirective", "scope": 13183, "sourceUnit": 13194, "src": "81:29:54", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/common/DepositableDelegateProxy.sol", "file": "../common/DepositableDelegateProxy.sol", "id": 13120, "nodeType": "ImportDirective", "scope": 13183, "sourceUnit": 10623, "src": "111:48:54", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/common/IsContract.sol", "file": "../common/IsContract.sol", "id": 13121, "nodeType": "ImportDirective", "scope": 13183, "sourceUnit": 10839, "src": "160:34:54", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 13122, "name": "IKernelEvents", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 12559, "src": "221:13:54", "typeDescriptions": { "typeIdentifier": "t_contract$_IKernelEvents_$12559", "typeString": "contract IKernelEvents" } }, "id": 13123, "nodeType": "InheritanceSpecifier", "src": "221:13:54" }, { "arguments": null, "baseName": { "contractScope": null, "id": 13124, "name": "KernelStorage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 13193, "src": "236:13:54", "typeDescriptions": { "typeIdentifier": "t_contract$_KernelStorage_$13193", "typeString": "contract KernelStorage" } }, "id": 13125, "nodeType": "InheritanceSpecifier", "src": "236:13:54" }, { "arguments": null, "baseName": { "contractScope": null, "id": 13126, "name": "KernelAppIds", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 13104, "src": "251:12:54", "typeDescriptions": { "typeIdentifier": "t_contract$_KernelAppIds_$13104", "typeString": "contract KernelAppIds" } }, "id": 13127, "nodeType": "InheritanceSpecifier", "src": "251:12:54" }, { "arguments": null, "baseName": { "contractScope": null, "id": 13128, "name": "KernelNamespaceConstants", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 13114, "src": "265:24:54", "typeDescriptions": { "typeIdentifier": "t_contract$_KernelNamespaceConstants_$13114", "typeString": "contract KernelNamespaceConstants" } }, "id": 13129, "nodeType": "InheritanceSpecifier", "src": "265:24:54" }, { "arguments": null, "baseName": { "contractScope": null, "id": 13130, "name": "IsContract", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 10838, "src": "291:10:54", "typeDescriptions": { "typeIdentifier": "t_contract$_IsContract_$10838", "typeString": "contract IsContract" } }, "id": 13131, "nodeType": "InheritanceSpecifier", "src": "291:10:54" }, { "arguments": null, "baseName": { "contractScope": null, "id": 13132, "name": "DepositableDelegateProxy", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 10622, "src": "303:24:54", "typeDescriptions": { "typeIdentifier": "t_contract$_DepositableDelegateProxy_$10622", "typeString": "contract DepositableDelegateProxy" } }, "id": 13133, "nodeType": "InheritanceSpecifier", "src": "303:24:54" } ], "contractDependencies": [ 10583, 10622, 10654, 10838, 12559, 13104, 13114, 13193, 14225 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 13182, "linearizedBaseContracts": [ 13182, 10622, 10583, 10838, 14225, 10654, 13114, 13104, 13193, 12559 ], "name": "KernelProxy", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 13160, "nodeType": "Block", "src": "639:528:54", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 13141, "name": "_kernelImpl", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 13135, "src": "676:11:54", "typeDescriptions": { "typeIdentifier": "t_contract$_IKernel_$12600", "typeString": "contract IKernel" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_IKernel_$12600", "typeString": "contract IKernel" } ], "id": 13140, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "668:7:54", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 13142, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "668:20:54", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 13139, "name": "isContract", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10837, "src": "657:10:54", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$", "typeString": "function (address) view returns (bool)" } }, "id": 13143, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "657:32:54", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 13138, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 15156, 15157 ], "referencedDeclaration": 15156, "src": "649:7:54", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 13144, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "649:41:54", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 13145, "nodeType": "ExpressionStatement", "src": "649:41:54" }, { "expression": { "argumentTypes": null, "id": 13152, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 13146, "name": "apps", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 13190, "src": "700:4:54", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_mapping$_t_bytes32_$_t_address_$_$", "typeString": "mapping(bytes32 => mapping(bytes32 => address))" } }, "id": 13149, "indexExpression": { "argumentTypes": null, "id": 13147, "name": "KERNEL_CORE_NAMESPACE", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 13107, "src": "705:21:54", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "700:27:54", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_address_$", "typeString": "mapping(bytes32 => address)" } }, "id": 13150, "indexExpression": { "argumentTypes": null, "id": 13148, "name": "KERNEL_CORE_APP_ID", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 13097, "src": "728:18:54", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "700:47:54", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 13151, "name": "_kernelImpl", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 13135, "src": "750:11:54", "typeDescriptions": { "typeIdentifier": "t_contract$_IKernel_$12600", "typeString": "contract IKernel" } }, "src": "700:61:54", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 13153, "nodeType": "ExpressionStatement", "src": "700:61:54" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 13155, "name": "KERNEL_CORE_NAMESPACE", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 13107, "src": "1105:21:54", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 13156, "name": "KERNEL_CORE_APP_ID", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 13097, "src": "1128:18:54", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 13157, "name": "_kernelImpl", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 13135, "src": "1148:11:54", "typeDescriptions": { "typeIdentifier": "t_contract$_IKernel_$12600", "typeString": "contract IKernel" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { 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