@aragon/apps-payroll

{ "contractName": "DepositableDelegateProxy", "abi": [ { "constant": true, "inputs": [], "name": "proxyType", "outputs": [ { "name": "proxyTypeId", "type": "uint256" } ], "payable": false, "stateMutability": "pure", "type": "function" }, { "constant": true, "inputs": [], "name": "isDepositable", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "implementation", "outputs": [ { "name": "codeAddr", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "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" } ], "bytecode": "0x", "deployedBytecode": "0x", "sourceMap": "", "deployedSourceMap": "", "source": "pragma solidity 0.4.24;\n\nimport \"./DelegateProxy.sol\";\nimport \"./DepositableStorage.sol\";\n\n\ncontract DepositableDelegateProxy is DepositableStorage, DelegateProxy {\n event ProxyDeposit(address sender, uint256 value);\n\n function () external payable {\n uint256 forwardGasThreshold = FWD_GAS_LIMIT;\n bytes32 isDepositablePosition = DEPOSITABLE_POSITION;\n\n // Optimized assembly implementation to prevent EIP-1884 from breaking deposits, reference code in Solidity:\n // https://github.com/aragon/aragonOS/blob/v4.2.1/contracts/common/DepositableDelegateProxy.sol#L10-L20\n assembly {\n // Continue only if the gas left is lower than the threshold for forwarding to the implementation code,\n // otherwise continue outside of the assembly block.\n if lt(gas, forwardGasThreshold) {\n // Only accept the deposit and emit an event if all of the following are true:\n // the proxy accepts deposits (isDepositable), msg.data.length == 0, and msg.value > 0\n if and(and(sload(isDepositablePosition), iszero(calldatasize)), gt(callvalue, 0)) {\n // Equivalent Solidity code for emitting the event:\n // emit ProxyDeposit(msg.sender, msg.value);\n\n let logData := mload(0x40) // free memory pointer\n mstore(logData, caller) // add 'msg.sender' to the log data (first event param)\n mstore(add(logData, 0x20), callvalue) // add 'msg.value' to the log data (second event param)\n\n // Emit an event with one topic to identify the event: keccak256('ProxyDeposit(address,uint256)') = 0x15ee...dee1\n log1(logData, 0x40, 0x15eeaa57c7bd188c1388020bcadc2c436ec60d647d36ef5b9eb3c742217ddee1)\n\n stop() // Stop. Exits execution context\n }\n\n // If any of above checks failed, revert the execution (if ETH was sent, it is returned to the sender)\n revert(0, 0)\n }\n }\n\n address target = implementation();\n delegatedFwd(target, msg.data);\n }\n}\n", "sourcePath": "@aragon/os/contracts/common/DepositableDelegateProxy.sol", "ast": { "absolutePath": "@aragon/os/contracts/common/DepositableDelegateProxy.sol", "exportedSymbols": { "DepositableDelegateProxy": [ 10622 ] }, "id": 10623, "nodeType": "SourceUnit", "nodes": [ { "id": 10585, "literals": [ "solidity", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:23:27" }, { "absolutePath": "@aragon/os/contracts/common/DelegateProxy.sol", "file": "./DelegateProxy.sol", "id": 10586, "nodeType": "ImportDirective", "scope": 10623, "sourceUnit": 10584, "src": "25:29:27", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/common/DepositableStorage.sol", "file": "./DepositableStorage.sol", "id": 10587, "nodeType": 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"scope": 10597, "src": "204:13:27", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 10594, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "204:7:27", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "187:31:27" }, "src": "169:50:27" }, { "body": { "id": 10620, "nodeType": "Block", "src": "254:1897:27", "statements": [ { "assignments": [ 10601 ], "declarations": [ { "constant": false, "id": 10601, "name": "forwardGasThreshold", "nodeType": "VariableDeclaration", "scope": 10621, "src": "264:27:27", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 10600, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "264:7:27", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 10603, "initialValue": { "argumentTypes": null, "id": 10602, "name": "FWD_GAS_LIMIT", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10563, "src": "294:13:27", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "264:43:27" }, { "assignments": [ 10605 ], "declarations": [ { "constant": false, "id": 10605, "name": "isDepositablePosition", "nodeType": "VariableDeclaration", "scope": 10621, "src": "317:29:27", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 10604, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "317:7:27", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 10607, "initialValue": { 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"memberName": "data", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2135:8:27", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } ], "id": 10614, "name": "delegatedFwd", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10582, "src": "2114:12:27", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,bytes memory)" } }, "id": 10618, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2114:30:27", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 10619, "nodeType": 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