{ "contractName": "MinterRole", "abi": [ { "inputs": [], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "account", "type": "address" } ], "name": "MinterAdded", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "account", "type": "address" } ], "name": "MinterRemoved", "type": "event" }, { "constant": true, "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "isMinter", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "addMinter", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [], "name": "renounceMinter", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "metadata": 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"bytecode": "0x", "deployedBytecode": "0x", "sourceMap": "", "deployedSourceMap": "", "source": "pragma solidity ^0.5.0;\n\nimport \"../../GSN/Context.sol\";\nimport \"../Roles.sol\";\n\ncontract MinterRole is Context {\n using Roles for Roles.Role;\n\n event MinterAdded(address indexed account);\n event MinterRemoved(address indexed account);\n\n Roles.Role private _minters;\n\n constructor () internal {\n _addMinter(_msgSender());\n }\n\n modifier onlyMinter() {\n require(isMinter(_msgSender()), \"MinterRole: caller does not have the Minter role\");\n _;\n }\n\n function isMinter(address account) public view returns (bool) {\n return _minters.has(account);\n }\n\n function addMinter(address account) public onlyMinter {\n _addMinter(account);\n }\n\n function renounceMinter() public {\n _removeMinter(_msgSender());\n }\n\n function _addMinter(address account) internal {\n _minters.add(account);\n emit MinterAdded(account);\n }\n\n function _removeMinter(address account) internal {\n _minters.remove(account);\n emit MinterRemoved(account);\n }\n}\n", "sourcePath": "@openzeppelin/contracts/access/roles/MinterRole.sol", "ast": { "absolutePath": "@openzeppelin/contracts/access/roles/MinterRole.sol", "exportedSymbols": { "MinterRole": [ 10667 ] }, "id": 10668, "nodeType": "SourceUnit", "nodes": [ { "id": 10562, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:32" }, { "absolutePath": "@openzeppelin/contracts/GSN/Context.sol", "file": "../../GSN/Context.sol", "id": 10563, "nodeType": "ImportDirective", "scope": 10668, "sourceUnit": 10480, "src": "25:31:32", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@openzeppelin/contracts/access/Roles.sol", "file": "../Roles.sol", "id": 10564, "nodeType": "ImportDirective", "scope": 10668, "sourceUnit": 10561, "src": "57:22:32", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 10565, "name": "Context", 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"typeDescriptions": { "typeIdentifier": "t_struct$_Role_$10486_storage_ptr", "typeString": "struct Roles.Role" } } }, { "anonymous": false, "documentation": null, "id": 10573, "name": "MinterAdded", "nodeType": "EventDefinition", "parameters": { "id": 10572, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 10571, "indexed": true, "name": "account", "nodeType": "VariableDeclaration", "scope": 10573, "src": "169:23:32", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 10570, "name": "address", "nodeType": "ElementaryTypeName", "src": "169:7:32", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "168:25:32" }, "src": "151:43:32" }, { "anonymous": false, "documentation": null, "id": 10577, "name": "MinterRemoved", "nodeType": "EventDefinition", 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