{ "contractName": "BaseUpgradeabilityProxy", "abi": [ { "payable": true, "stateMutability": "payable", "type": "fallback" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "implementation", "type": "address" } ], "name": "Upgraded", "type": "event" } ], "bytecode": "0x608060405234801561001057600080fd5b5060a48061001f6000396000f3fe6080604052600a600c565b005b60126020565b601e601a6022565b6053565b565b565b6000807f7050c9e0f4ca769c69bd3a8ef740bc37934f8e2c036e5a723fd8ee048ed3f8c36001029050805491505090565b3660008037600080366000845af43d6000803e80600081146073573d6000f35b3d6000fdfea165627a7a72305820d57e22327e387328e9b3ae9e0c6101ceab4ba334f31cba6f6e135ed35b747f480029", "deployedBytecode": "0x6080604052600a600c565b005b60126020565b601e601a6022565b6053565b565b565b6000807f7050c9e0f4ca769c69bd3a8ef740bc37934f8e2c036e5a723fd8ee048ed3f8c36001029050805491505090565b3660008037600080366000845af43d6000803e80600081146073573d6000f35b3d6000fdfea165627a7a72305820d57e22327e387328e9b3ae9e0c6101ceab4ba334f31cba6f6e135ed35b747f480029", "sourceMap": "295:1517:30:-;;;;8:9:-1;5:2;;;30:1;27;20:12;5:2;295:1517:30;;;;;;;", "deployedSourceMap": "295:1517:30:-;;;453:11:33;:9;:11::i;:::-;295:1517:30;1952:90:33;1988:15;:13;:15::i;:::-;2009:28;2019:17;:15;:17::i;:::-;2009:9;:28::i;:::-;1952:90::o;1818:39::-;:::o;949:156:30:-;999:12;1019;769:66;1034:19;;1019:34;;1090:4;1084:11;1076:19;;1068:33;;:::o;878:731:33:-;1180:12;1177:1;1174;1161:32;1370:1;1367;1353:12;1350:1;1334:14;1329:3;1316:56;1434:14;1431:1;1428;1413:36;1464:6;1524:1;1519:36;;;;1582:14;1579:1;1572:25;1519:36;1538:14;1535:1;1528:25", "source": "pragma solidity ^0.5.0;\n\nimport './Proxy.sol';\nimport '../utils/Address.sol';\n\n/**\n * @title BaseUpgradeabilityProxy\n * @dev This contract implements a proxy that allows to change the\n * implementation address to which it will delegate.\n * Such a change is called an implementation upgrade.\n */\ncontract BaseUpgradeabilityProxy is Proxy {\n /**\n * @dev Emitted when the implementation is upgraded.\n * @param implementation Address of the new implementation.\n */\n event Upgraded(address indexed implementation);\n\n /**\n * @dev Storage slot with the address of the current implementation.\n * This is the keccak-256 hash of \"org.zeppelinos.proxy.implementation\", and is\n * validated in the constructor.\n */\n bytes32 internal constant IMPLEMENTATION_SLOT = 0x7050c9e0f4ca769c69bd3a8ef740bc37934f8e2c036e5a723fd8ee048ed3f8c3;\n\n /**\n * @dev Returns the current implementation.\n * @return Address of the current implementation\n */\n function _implementation() internal view returns (address impl) {\n bytes32 slot = IMPLEMENTATION_SLOT;\n assembly {\n impl := sload(slot)\n }\n }\n\n /**\n * @dev Upgrades the proxy to a new implementation.\n * @param newImplementation Address of the new implementation.\n */\n function _upgradeTo(address newImplementation) internal {\n _setImplementation(newImplementation);\n emit Upgraded(newImplementation);\n }\n\n /**\n * @dev Sets the implementation address of the proxy.\n * @param newImplementation Address of the new implementation.\n */\n function _setImplementation(address newImplementation) internal {\n require(ZOSLibAddress.isContract(newImplementation), \"Cannot set a proxy implementation to a non-contract address\");\n\n bytes32 slot = IMPLEMENTATION_SLOT;\n\n assembly {\n sstore(slot, newImplementation)\n }\n }\n}\n", "sourcePath": "/home/spalladino/Projects/sdk/zos/packages/lib/contracts/upgradeability/BaseUpgradeabilityProxy.sol", "ast": { "absolutePath": "/home/spalladino/Projects/sdk/zos/packages/lib/contracts/upgradeability/BaseUpgradeabilityProxy.sol", "exportedSymbols": { 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"contract Proxy" } }, "id": 5287, "nodeType": "InheritanceSpecifier", "src": "331:5:30" } ], "contractDependencies": [ 5476 ], "contractKind": "contract", "documentation": "@title BaseUpgradeabilityProxy\n@dev This contract implements a proxy that allows to change the\nimplementation address to which it will delegate.\nSuch a change is called an implementation upgrade.", "fullyImplemented": true, "id": 5339, "linearizedBaseContracts": [ 5339, 5476 ], "name": "BaseUpgradeabilityProxy", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "documentation": "@dev Emitted when the implementation is upgraded.\n@param implementation Address of the new implementation.", "id": 5291, "name": "Upgraded", "nodeType": "EventDefinition", "parameters": { "id": 5290, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5289, "indexed": true, "name": "implementation", "nodeType": "VariableDeclaration", "scope": 5291, "src": "485:30:30", "stateVariable": false, 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implementation.\n@return Address of the current implementation", "id": 5305, "implemented": true, "kind": "function", "modifiers": [], "name": "_implementation", "nodeType": "FunctionDefinition", "parameters": { "id": 5295, "nodeType": "ParameterList", "parameters": [], "src": "973:2:30" }, "returnParameters": { "id": 5298, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5297, "name": "impl", "nodeType": "VariableDeclaration", "scope": 5305, "src": "999:12:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5296, "name": "address", "nodeType": "ElementaryTypeName", "src": "999:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "998:14:30" }, "scope": 5339, "src": "949:156:30", "stateMutability": "view", "superFunction": 5452, "visibility": "internal" }, { "body": { "id": 5318, "nodeType": "Block", "src": "1296:86:30", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5311, "name": "newImplementation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5307, "src": "1321:17:30", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 5310, "name": "_setImplementation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5338, "src": "1302:18:30", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$returns$__$", "typeString": "function (address)" } }, "id": 5312, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1302:37:30", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5313, "nodeType": "ExpressionStatement", "src": "1302:37:30" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5315, "name": "newImplementation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5307, "src": "1359:17:30", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 5314, "name": "Upgraded", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5291, "src": "1350:8:30", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$returns$__$", "typeString": "function (address)" } }, "id": 5316, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1350:27:30", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5317, "nodeType": "EmitStatement", "src": "1345:32:30" } ] }, "documentation": "@dev Upgrades the proxy to a new implementation.\n@param newImplementation Address of the new implementation.", "id": 5319, "implemented": true, "kind": "function", "modifiers": [], "name": "_upgradeTo", "nodeType": "FunctionDefinition", "parameters": { "id": 5308, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5307, "name": "newImplementation", "nodeType": "VariableDeclaration", "scope": 5319, "src": "1260:25:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5306, "name": "address", "nodeType": "ElementaryTypeName", "src": "1260:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1259:27:30" }, "returnParameters": { "id": 5309, "nodeType": "ParameterList", "parameters": [], "src": "1296:0:30" }, "scope": 5339, "src": "1240:142:30", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5337, "nodeType": "Block", "src": "1583:227:30", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5327, "name": "newImplementation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5321, "src": "1622:17:30", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "expression": { "argumentTypes": null, "id": 5325, "name": "ZOSLibAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5963, "src": "1597:13:30", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_ZOSLibAddress_$5963_$", "typeString": "type(library ZOSLibAddress)" } }, "id": 5326, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "isContract", "nodeType": "MemberAccess", "referencedDeclaration": 5962, "src": "1597:24:30", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$", "typeString": "function (address) view returns (bool)" } }, "id": 5328, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1597:43:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "43616e6e6f742073657420612070726f787920696d706c656d656e746174696f6e20746f2061206e6f6e2d636f6e74726163742061646472657373", "id": 5329, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1642:61:30", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_b5145a64ce8c406e5785204fe5b300f0ceda96d6636350b38fdccb9cd8c0c37c", "typeString": "literal_string \"Cannot set a proxy implementation to a non-contract address\"" }, "value": "Cannot set a proxy implementation to a non-contract address" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_b5145a64ce8c406e5785204fe5b300f0ceda96d6636350b38fdccb9cd8c0c37c", "typeString": "literal_string \"Cannot set a proxy implementation to a non-contract address\"" } ], "id": 5324, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 5990, 5991 ], "referencedDeclaration": 5991, "src": "1589:7:30", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 5330, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1589:115:30", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5331, "nodeType": "ExpressionStatement", "src": "1589:115:30" }, { "assignments": [ 5333 ], "declarations": [ { "constant": false, "id": 5333, "name": "slot", "nodeType": "VariableDeclaration", "scope": 5337, "src": "1711:12:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 5332, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1711:7:30", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 5335, "initialValue": { "argumentTypes": null, "id": 5334, "name": "IMPLEMENTATION_SLOT", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5294, "src": "1726:19:30", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "1711:34:30" }, { "externalReferences": [ { "slot": { "declaration": 5333, "isOffset": false, "isSlot": false, "src": "1776:4:30", "valueSize": 1 } }, { "newImplementation": { "declaration": 5321, "isOffset": false, "isSlot": false, "src": "1782:17:30", "valueSize": 1 } } ], "id": 5336, "nodeType": "InlineAssembly", "operations": "{\n sstore(slot, newImplementation)\n}", "src": "1752:58:30" } ] }, "documentation": "@dev Sets the implementation address of the proxy.\n@param newImplementation Address of the new implementation.", "id": 5338, "implemented": true, "kind": "function", "modifiers": [], "name": "_setImplementation", "nodeType": "FunctionDefinition", "parameters": { "id": 5322, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5321, "name": "newImplementation", "nodeType": "VariableDeclaration", "scope": 5338, "src": "1547:25:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5320, "name": "address", "nodeType": "ElementaryTypeName", "src": "1547:7:30", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1546:27:30" }, "returnParameters": { "id": 5323, "nodeType": "ParameterList", "parameters": [], "src": "1583:0:30" }, "scope": 5339, "src": "1519:291:30", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" } ], "scope": 5340, "src": "295:1517:30" } ], "src": "0:1813:30" }, "compiler": { "name": "solc", "version": "0.5.3+commit.10d17f24.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.2", "updatedAt": "2020-02-20T14:02:47.780Z", "devdoc": { "details": "This contract implements a proxy that allows to change the implementation address to which it will delegate. Such a change is called an implementation upgrade.", "methods": {}, "title": "BaseUpgradeabilityProxy" }, "userdoc": { "methods": {} } }