{ "contractName": "DelegateProxy", "abi": [ { "constant": true, "inputs": [], "name": "proxyType", "outputs": [ { "name": "proxyTypeId", "type": "uint256" } ], "payable": false, "stateMutability": "pure", "type": "function" }, { "constant": true, "inputs": [], "name": "implementation", "outputs": [ { "name": "codeAddr", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "metadata": "", "bytecode": "0x", "deployedBytecode": "0x", "sourceMap": "", "deployedSourceMap": "", "source": "pragma solidity 0.4.24;\n\nimport \"../common/IsContract.sol\";\nimport \"../lib/misc/ERCProxy.sol\";\n\n\ncontract DelegateProxy is ERCProxy, IsContract {\n uint256 internal constant FWD_GAS_LIMIT = 10000;\n\n /**\n * @dev Performs a delegatecall and returns whatever the delegatecall returned (entire context execution will return!)\n * @param _dst Destination address to perform the delegatecall\n * @param _calldata Calldata for the delegatecall\n */\n function delegatedFwd(address _dst, bytes _calldata) internal {\n require(isContract(_dst));\n uint256 fwdGasLimit = FWD_GAS_LIMIT;\n\n assembly {\n let result := delegatecall(sub(gas, fwdGasLimit), _dst, add(_calldata, 0x20), mload(_calldata), 0, 0)\n let size := returndatasize\n let ptr := mload(0x40)\n returndatacopy(ptr, 0, size)\n\n // revert instead of invalid() bc if the underlying call failed with invalid() it already wasted gas.\n // if the call returned error data, forward it\n switch result case 0 { revert(ptr, size) }\n default { return(ptr, size) }\n }\n }\n}\n", "sourcePath": "@aragon/os/contracts/common/DelegateProxy.sol", "ast": { "absolutePath": "@aragon/os/contracts/common/DelegateProxy.sol", "exportedSymbols": { "DelegateProxy": [ 6214 ] }, "id": 6215, "nodeType": "SourceUnit", "nodes": [ { "id": 6185, "literals": [ "solidity", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:23:24" }, { "absolutePath": "@aragon/os/contracts/common/IsContract.sol", "file": "../common/IsContract.sol", "id": 6186, "nodeType": "ImportDirective", "scope": 6215, "sourceUnit": 6470, "src": "25:34:24", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/lib/misc/ERCProxy.sol", "file": "../lib/misc/ERCProxy.sol", "id": 6187, "nodeType": "ImportDirective", "scope": 6215, "sourceUnit": 9857, "src": "60:34:24", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 6188, "name": "ERCProxy", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 9856, "src": "123:8:24", "typeDescriptions": { "typeIdentifier": "t_contract$_ERCProxy_$9856", "typeString": "contract ERCProxy" } }, "id": 6189, "nodeType": "InheritanceSpecifier", "src": "123:8:24" }, { "arguments": null, "baseName": { "contractScope": null, "id": 6190, "name": "IsContract", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6469, "src": "133:10:24", "typeDescriptions": { "typeIdentifier": "t_contract$_IsContract_$6469", "typeString": "contract IsContract" } }, "id": 6191, "nodeType": "InheritanceSpecifier", "src": "133:10:24" } ], "contractDependencies": [ 6469, 9856 ], "contractKind": "contract", "documentation": null, "fullyImplemented": false, "id": 6214, "linearizedBaseContracts": [ 6214, 6469, 9856 ], "name": "DelegateProxy", "nodeType": "ContractDefinition", "nodes": [ { "constant": true, "id": 6194, "name": "FWD_GAS_LIMIT", "nodeType": "VariableDeclaration", "scope": 6214, "src": "150:47:24", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6192, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "150:7:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3130303030", "id": 6193, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "192:5:24", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_10000_by_1", "typeString": "int_const 10000" }, "value": "10000" }, "visibility": "internal" }, { "body": { "id": 6212, "nodeType": "Block", "src": "522:617:24", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6203, "name": "_dst", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6196, "src": "551:4:24", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 6202, "name": "isContract", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6468, "src": "540:10:24", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$", "typeString": "function (address) view returns (bool)" } }, "id": 6204, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "540:16:24", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 6201, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 10407, 10408 ], "referencedDeclaration": 10407, "src": "532:7:24", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 6205, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "532:25:24", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6206, "nodeType": "ExpressionStatement", "src": "532:25:24" }, { "assignments": [ 6208 ], "declarations": [ { "constant": false, "id": 6208, "name": "fwdGasLimit", "nodeType": "VariableDeclaration", "scope": 6213, "src": "567:19:24", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6207, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "567:7:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6210, "initialValue": { "argumentTypes": null, "id": 6209, "name": "FWD_GAS_LIMIT", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6194, "src": "589:13:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "567:35:24" }, { "externalReferences": [ { "fwdGasLimit": { "declaration": 6208, "isOffset": false, "isSlot": false, "src": "672:11:24", "valueSize": 1 } }, { "_calldata": { "declaration": 6198, "isOffset": false, "isSlot": false, "src": "720:9:24", "valueSize": 1 } }, { "_calldata": { "declaration": 6198, "isOffset": false, "isSlot": false, "src": "696:9:24", "valueSize": 1 } }, { "_dst": { "declaration": 6196, "isOffset": false, "isSlot": false, "src": "686:4:24", "valueSize": 1 } } ], "id": 6211, "nodeType": "InlineAssembly", "operations": "{\n let result := delegatecall(sub(gas(), fwdGasLimit), _dst, add(_calldata, 0x20), mload(_calldata), 0, 0)\n let size := returndatasize()\n let ptr := mload(0x40)\n returndatacopy(ptr, 0, size)\n switch result\n case 0 {\n revert(ptr, size)\n }\n default {\n return(ptr, size)\n }\n}", "src": "613:526:24" } ] }, "documentation": "@dev Performs a delegatecall and returns whatever the delegatecall returned (entire context execution will return!)\n@param _dst Destination address to perform the delegatecall\n@param _calldata Calldata for the delegatecall", "id": 6213, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "delegatedFwd", "nodeType": "FunctionDefinition", "parameters": { "id": 6199, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6196, "name": "_dst", "nodeType": "VariableDeclaration", "scope": 6213, "src": "482:12:24", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6195, "name": "address", "nodeType": "ElementaryTypeName", "src": "482:7:24", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 6198, "name": "_calldata", "nodeType": "VariableDeclaration", "scope": 6213, "src": "496:15:24", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 6197, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "496:5:24", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "481:31:24" }, "payable": false, "returnParameters": { "id": 6200, "nodeType": "ParameterList", "parameters": [], "src": "522:0:24" }, "scope": 6214, "src": "460:679:24", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" } ], "scope": 6215, "src": "97:1044:24" } ], "src": "0:1142:24" }, "legacyAST": { "absolutePath": "@aragon/os/contracts/common/DelegateProxy.sol", "exportedSymbols": { "DelegateProxy": [ 6214 ] }, "id": 6215, "nodeType": "SourceUnit", "nodes": [ { "id": 6185, "literals": [ "solidity", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:23:24" }, { "absolutePath": "@aragon/os/contracts/common/IsContract.sol", "file": "../common/IsContract.sol", "id": 6186, "nodeType": "ImportDirective", "scope": 6215, "sourceUnit": 6470, "src": "25:34:24", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/lib/misc/ERCProxy.sol", "file": "../lib/misc/ERCProxy.sol", "id": 6187, "nodeType": "ImportDirective", "scope": 6215, "sourceUnit": 9857, "src": "60:34:24", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 6188, "name": "ERCProxy", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 9856, "src": "123:8:24", "typeDescriptions": { "typeIdentifier": "t_contract$_ERCProxy_$9856", "typeString": "contract ERCProxy" } }, "id": 6189, "nodeType": "InheritanceSpecifier", "src": "123:8:24" }, { "arguments": null, "baseName": { "contractScope": null, "id": 6190, "name": "IsContract", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6469, "src": "133:10:24", "typeDescriptions": { "typeIdentifier": "t_contract$_IsContract_$6469", "typeString": "contract IsContract" } }, "id": 6191, "nodeType": "InheritanceSpecifier", "src": "133:10:24" } ], "contractDependencies": [ 6469, 9856 ], "contractKind": "contract", "documentation": null, "fullyImplemented": false, "id": 6214, "linearizedBaseContracts": [ 6214, 6469, 9856 ], "name": "DelegateProxy", "nodeType": "ContractDefinition", "nodes": [ { "constant": true, "id": 6194, "name": "FWD_GAS_LIMIT", "nodeType": "VariableDeclaration", "scope": 6214, "src": "150:47:24", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6192, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "150:7:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3130303030", "id": 6193, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "192:5:24", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_10000_by_1", "typeString": "int_const 10000" }, "value": "10000" }, "visibility": "internal" }, { "body": { "id": 6212, "nodeType": "Block", "src": "522:617:24", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6203, "name": "_dst", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6196, "src": "551:4:24", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 6202, "name": "isContract", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6468, "src": "540:10:24", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$", "typeString": "function (address) view returns (bool)" } }, "id": 6204, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "540:16:24", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 6201, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 10407, 10408 ], "referencedDeclaration": 10407, "src": "532:7:24", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 6205, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "532:25:24", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6206, "nodeType": "ExpressionStatement", "src": "532:25:24" }, { "assignments": [ 6208 ], "declarations": [ { "constant": false, "id": 6208, "name": "fwdGasLimit", "nodeType": "VariableDeclaration", "scope": 6213, "src": "567:19:24", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6207, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "567:7:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6210, "initialValue": { "argumentTypes": null, "id": 6209, "name": "FWD_GAS_LIMIT", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6194, "src": "589:13:24", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "567:35:24" }, { "externalReferences": [ { "fwdGasLimit": { "declaration": 6208, "isOffset": false, "isSlot": false, "src": "672:11:24", "valueSize": 1 } }, { "_calldata": { "declaration": 6198, "isOffset": false, "isSlot": false, "src": "720:9:24", "valueSize": 1 } }, { "_calldata": { "declaration": 6198, "isOffset": false, "isSlot": false, "src": "696:9:24", "valueSize": 1 } }, { "_dst": { "declaration": 6196, "isOffset": false, "isSlot": false, "src": "686:4:24", "valueSize": 1 } } ], "id": 6211, "nodeType": "InlineAssembly", "operations": "{\n let result := delegatecall(sub(gas(), fwdGasLimit), _dst, add(_calldata, 0x20), mload(_calldata), 0, 0)\n let size := returndatasize()\n let ptr := mload(0x40)\n returndatacopy(ptr, 0, size)\n switch result\n case 0 {\n revert(ptr, size)\n }\n default {\n return(ptr, size)\n }\n}", "src": "613:526:24" } ] }, "documentation": "@dev Performs a delegatecall and returns whatever the delegatecall returned (entire context execution will return!)\n@param _dst Destination address to perform the delegatecall\n@param _calldata Calldata for the delegatecall", "id": 6213, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "delegatedFwd", "nodeType": "FunctionDefinition", "parameters": { "id": 6199, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6196, "name": "_dst", "nodeType": "VariableDeclaration", "scope": 6213, "src": "482:12:24", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6195, "name": "address", "nodeType": "ElementaryTypeName", "src": "482:7:24", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 6198, "name": "_calldata", "nodeType": "VariableDeclaration", "scope": 6213, "src": "496:15:24", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 6197, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "496:5:24", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "481:31:24" }, "payable": false, "returnParameters": { "id": 6200, "nodeType": "ParameterList", "parameters": [], "src": "522:0:24" }, "scope": 6214, "src": "460:679:24", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" } ], "scope": 6215, "src": "97:1044:24" } ], "src": "0:1142:24" }, "compiler": { "name": "solc", "version": "0.4.24+commit.e67f0147.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.2.0", "updatedAt": "2020-06-07T23:27:00.569Z", "devdoc": { "methods": {} }, "userdoc": { "methods": {} } }