1688 lines
67 KiB
JSON
1688 lines
67 KiB
JSON
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"source": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n */\nlibrary Counters {\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n unchecked {\n counter._value += 1;\n }\n }\n\n function decrement(Counter storage counter) internal {\n uint256 value = counter._value;\n require(value > 0, \"Counter: decrement overflow\");\n unchecked {\n counter._value = value - 1;\n }\n }\n\n function reset(Counter storage counter) internal {\n counter._value = 0;\n }\n}\n",
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|
|
{
|
|
"constant": false,
|
|
"id": 6533,
|
|
"mutability": "mutable",
|
|
"name": "counter",
|
|
"nameLocation": "1340:7:31",
|
|
"nodeType": "VariableDeclaration",
|
|
"scope": 6543,
|
|
"src": "1324:23:31",
|
|
"stateVariable": false,
|
|
"storageLocation": "storage",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_struct$_Counter_$6476_storage_ptr",
|
|
"typeString": "struct Counters.Counter"
|
|
},
|
|
"typeName": {
|
|
"id": 6532,
|
|
"nodeType": "UserDefinedTypeName",
|
|
"pathNode": {
|
|
"id": 6531,
|
|
"name": "Counter",
|
|
"nodeType": "IdentifierPath",
|
|
"referencedDeclaration": 6476,
|
|
"src": "1324:7:31"
|
|
},
|
|
"referencedDeclaration": 6476,
|
|
"src": "1324:7:31",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_struct$_Counter_$6476_storage_ptr",
|
|
"typeString": "struct Counters.Counter"
|
|
}
|
|
},
|
|
"visibility": "internal"
|
|
}
|
|
],
|
|
"src": "1323:25:31"
|
|
},
|
|
"returnParameters": {
|
|
"id": 6535,
|
|
"nodeType": "ParameterList",
|
|
"parameters": [],
|
|
"src": "1358:0:31"
|
|
},
|
|
"scope": 6544,
|
|
"src": "1309:84:31",
|
|
"stateMutability": "nonpayable",
|
|
"virtual": false,
|
|
"visibility": "internal"
|
|
}
|
|
],
|
|
"scope": 6545,
|
|
"src": "424:971:31",
|
|
"usedErrors": []
|
|
}
|
|
],
|
|
"src": "87:1309:31"
|
|
},
|
|
"compiler": {
|
|
"name": "solc",
|
|
"version": "0.8.10+commit.fc410830.Emscripten.clang"
|
|
},
|
|
"networks": {},
|
|
"schemaVersion": "3.4.4",
|
|
"updatedAt": "2023-11-28T07:46:31.005Z",
|
|
"devdoc": {
|
|
"author": "Matt Condon (@shrugs)",
|
|
"details": "Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number of elements in a mapping, issuing ERC721 ids, or counting request ids. Include with `using Counters for Counters.Counter;`",
|
|
"kind": "dev",
|
|
"methods": {},
|
|
"title": "Counters",
|
|
"version": 1
|
|
},
|
|
"userdoc": {
|
|
"kind": "user",
|
|
"methods": {},
|
|
"version": 1
|
|
}
|
|
} |