{ "contractName": "LibSet_bytes4", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.6.6+commit.6c089d02\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"methods\":{}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"solstruct/contracts/libs/LibSet.bytes4.sol\":\"LibSet_bytes4\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"solstruct/contracts/libs/LibSet.bytes4.sol\":{\"keccak256\":\"0xdec5833ab65ae8cab500b84424dde49c1f7817c6575e1631a729fc88c6d4bd7f\",\"urls\":[\"bzz-raw://2e5d23b8383819e6dd77ea61ed30740bcba45b0fff609922b11d1cae2b0223f1\",\"dweb:/ipfs/QmQ27sefXEYXBUSEGdPkuzCqemtUJzNXhhsyd7kB94w6CE\"]}},\"version\":1}", "bytecode": 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at(set storage _set, uint256 _index)\n\tinternal view returns (bytes4 )\n\t{\n\t\treturn _set.values[_index - 1];\n\t}\n\n\tfunction indexOf(set storage _set, bytes4 _value)\n\tinternal view returns (uint256)\n\t{\n\t\treturn _set.indexes[_value];\n\t}\n\n\tfunction contains(set storage _set, bytes4 _value)\n\tinternal view returns (bool)\n\t{\n\t\treturn indexOf(_set, _value) != 0;\n\t}\n\n\tfunction content(set storage _set)\n\tinternal view returns (bytes4[] memory)\n\t{\n\t\treturn _set.values;\n\t}\n\n\tfunction add(set storage _set, bytes4 _value)\n\tinternal returns (bool)\n\t{\n\t\tif (contains(_set, _value))\n\t\t{\n\t\t\treturn false;\n\t\t}\n\t\t_set.values.push(_value);\n\t\t_set.indexes[_value] = _set.values.length;\n\t\treturn true;\n\t}\n\n\tfunction remove(set storage _set, bytes4 _value)\n\tinternal returns (bool)\n\t{\n\t\tif (!contains(_set, _value))\n\t\t{\n\t\t\treturn false;\n\t\t}\n\n\t\tuint256 i = indexOf(_set, _value);\n\t\tuint256 last = length(_set);\n\n\t\tif (i != last)\n\t\t{\n\t\t\tbytes4 swapValue = _set.values[last - 1];\n\t\t\t_set.values[i - 1] = swapValue;\n\t\t\t_set.indexes[swapValue] = i;\n\t\t}\n\n\t\tdelete _set.indexes[_value];\n\t\t_set.values.pop();\n\n\t\treturn true;\n\t}\n\n\tfunction clear(set storage _set)\n\tinternal returns (bool)\n\t{\n\t\tfor (uint256 i = _set.values.length; i > 0; --i)\n\t\t{\n\t\t\tdelete _set.indexes[_set.values[i-1]];\n\t\t}\n\t\t_set.values = new bytes4[](0);\n\t\treturn true;\n\t}\n}\n", "sourcePath": "solstruct/contracts/libs/LibSet.bytes4.sol", "ast": { "absolutePath": "solstruct/contracts/libs/LibSet.bytes4.sol", "exportedSymbols": { "LibSet_bytes4": [ 13964 ] }, "id": 13965, "nodeType": "SourceUnit", "nodes": [ { "id": 13720, "literals": [ "solidity", ">", "0.5", ".0", "<", "0.7", ".0" ], "nodeType": "PragmaDirective", "src": "0:30:82" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": null, 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