@daostack/access_control

{ "contractName": "Group", "abi": [ { "constant": true, "inputs": [ { "name": "_account", "type": "address" } ], "name": "isMember", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "_contract", "type": "address" }, { "name": "_data", "type": "bytes" } ], "name": "forward", "outputs": [], "payable": true, "stateMutability": "payable", "type": "function" } ], "bytecode": "0x", "deployedBytecode": "0x", "sourceMap": "", "deployedSourceMap": "", "source": "pragma solidity ^0.4.24;\n\n\n/**\n * @title Abstract base contract for all groups.\n */\ncontract Group {\n\n /**\n * @dev Check if an account belongs to this group.\n * @param _account the account to check.\n */\n function isMember(address _account) public view returns(bool);\n\n /**\n * @dev Modifier for restricting access to members of the group.\n */\n modifier onlyMember() {\n require(isMember(msg.sender), \"Not a member of this group\");\n _;\n }\n\n /**\n * @dev Call a method on a contract in the name of the group.\n * @param _contract contract address to call.\n * @param _data ABI encoded function call data.\n */\n function forward(address _contract, bytes _data) public payable onlyMember {\n // solium-disable-next-line security/no-low-level-calls\n bool result = _contract.call(_data);\n // solium-disable-next-line security/no-inline-assembly\n assembly {\n // Copy the returned data.\n returndatacopy(0, 0, returndatasize)\n\n switch result\n // call returns 0 on error.\n case 0 { revert(0, returndatasize) }\n default { return(0, returndatasize) }\n }\n }\n}\n\n\n/**\n * @title Group with fixed members set at creation time.\n */\ncontract FixedGroup is Group {\n mapping(address => bool) members;\n\n /**\n * @notice Can use up to 935 members (tested with 8M block gas limit)\n */\n constructor(address[] _members) public {\n for (uint i = 0; i < _members.length; i++) {\n members[_members[i]] = true;\n }\n }\n\n function isMember(address _account) public view returns(bool) {\n return members[_account];\n }\n}\n\n\n/**\n * @title Group that comprises of all members belonging to at least one subgroup.\n */\ncontract UnionGroup is Group {\n Group[] subgroups;\n\n /**\n * @notice Can use up to 294 sub-groups (tested with 8M block gas limit)\n */\n constructor(Group[] _subgroups) public {\n subgroups = _subgroups;\n }\n\n function isMember(address _account) public view returns(bool) {\n for (uint i = 0; i < subgroups.length; i++) {\n if (subgroups[i].isMember(_account)) {\n return true;\n }\n }\n return false;\n }\n}\n\n\n/**\n * @title Group that comprises of all members belonging to all subgroups.\n */\ncontract IntersectionGroup is Group {\n Group[] subgroups;\n\n /**\n * @notice Can use up to 294 sub-groups (tested with 8M block gas limit)\n */\n constructor(Group[] _subgroups) public {\n subgroups = _subgroups;\n }\n\n function isMember(address _account) public view returns(bool) {\n for 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"t_array$_t_contract$_Group_$178_$dyn_storage_ptr", "typeString": "contract Group[]" } }, "value": null, "visibility": "internal" }, { "body": { "id": 240, "nodeType": "Block", "src": "1991:39:3", "statements": [ { "expression": { "argumentTypes": null, "id": 238, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 236, "name": "subgroups", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 230, "src": "2001:9:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_contract$_Group_$178_$dyn_storage", "typeString": "contract Group[] storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 237, "name": "_subgroups", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 233, "src": "2013:10:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_contract$_Group_$178_$dyn_memory_ptr", "typeString": "contract Group[] memory" } }, "src": "2001:22:3", "typeDescriptions": { "typeIdentifier": "t_array$_t_contract$_Group_$178_$dyn_storage", "typeString": "contract Group[] storage ref" } }, "id": 239, "nodeType": "ExpressionStatement", "src": "2001:22:3" } ] }, "documentation": "@notice Can use up to 294 sub-groups (tested with 8M block gas limit)", "id": 241, "implemented": true, "isConstructor": true, "isDeclaredConst": false, "modifiers": [], "name": "", "nodeType": "FunctionDefinition",