{ "contractName": "ERC721URIStorage", "abi": [ { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "owner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "approved", "type": "address" }, { "indexed": true, "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "Approval", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "owner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "operator", "type": "address" }, { "indexed": false, "internalType": "bool", "name": "approved", "type": "bool" } ], "name": "ApprovalForAll", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "from", "type": "address" }, { "indexed": true, "internalType": "address", "name": "to", "type": "address" }, { "indexed": true, "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "inputs": [ { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "approve", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "getApproved", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "operator", "type": "address" } ], "name": "isApprovedForAll", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "name", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "ownerOf", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "safeTransferFrom", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" }, { "internalType": "bytes", "name": "_data", "type": "bytes" } ], "name": "safeTransferFrom", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "operator", "type": "address" }, { "internalType": "bool", "name": "approved", "type": "bool" } ], "name": "setApprovalForAll", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "bytes4", "name": "interfaceId", "type": "bytes4" } ], "name": "supportsInterface", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "symbol", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "transferFrom", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "tokenId", "type": "uint256" } ], "name": "tokenURI", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.8.0+commit.c7dfd78e\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"approved\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"bool\",\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"ApprovalForAll\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"getApproved\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"isApprovedForAll\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"ownerOf\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"setApprovalForAll\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes4\",\"name\":\"interfaceId\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"tokenURI\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"details\":\"ERC721 token with storage based token URI management.\",\"kind\":\"dev\",\"methods\":{\"approve(address,uint256)\":{\"details\":\"See {IERC721-approve}.\"},\"balanceOf(address)\":{\"details\":\"See {IERC721-balanceOf}.\"},\"getApproved(uint256)\":{\"details\":\"See {IERC721-getApproved}.\"},\"isApprovedForAll(address,address)\":{\"details\":\"See {IERC721-isApprovedForAll}.\"},\"name()\":{\"details\":\"See {IERC721Metadata-name}.\"},\"ownerOf(uint256)\":{\"details\":\"See {IERC721-ownerOf}.\"},\"safeTransferFrom(address,address,uint256)\":{\"details\":\"See {IERC721-safeTransferFrom}.\"},\"safeTransferFrom(address,address,uint256,bytes)\":{\"details\":\"See {IERC721-safeTransferFrom}.\"},\"setApprovalForAll(address,bool)\":{\"details\":\"See {IERC721-setApprovalForAll}.\"},\"supportsInterface(bytes4)\":{\"details\":\"See {IERC165-supportsInterface}.\"},\"symbol()\":{\"details\":\"See {IERC721Metadata-symbol}.\"},\"tokenURI(uint256)\":{\"details\":\"See {IERC721Metadata-tokenURI}.\"},\"transferFrom(address,address,uint256)\":{\"details\":\"See {IERC721-transferFrom}.\"}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol\":\"ERC721URIStorage\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC721/ERC721.sol\":{\"keccak256\":\"0x8d1cabca557cb77d97d801d674f0dacc33659e1430cdd34f91ae5d033fc3d93f\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://379879e94763b61c652f914da987a603fb1fec35645a1d6b8022413cf1c3a467\",\"dweb:/ipfs/QmVkFoHVN6XWztbJDHrWfMCRPV4QsbFGj6QPZYeMjQRfhr\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xc1c941ad1e580b4623007305921efe2f26fc7320a4edc226234dd707c658a428\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://473e11d739868e0d9f48254ccf84ba63290d6a2321d59a37b74c244a27f9cad7\",\"dweb:/ipfs/QmUGzDmecP936jzgM7SYyGwR1YgBGsveoHHJTbDfB8jbGF\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0x96877bb2eb8ca360e949ee1bd77b47a14e92e42f79897c350f088f87a3c231d4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://48593d699a4ef6b5bd2efb20d37320e69303fd27d4b59a2b6b8a8e563e608456\",\"dweb:/ipfs/QmdAPS8uLrzPJEeFZyJVkwTtaL3KB9jo9wJm1UcoJP55wT\"]},\"@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol\":{\"keccak256\":\"0xd03f5c3d258a9b0f751a3246e0802106585561ab5909b808368759364fc786f8\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://e89e3562a13d6acd5c6c0ce1c657f1ea1b472878c30a2f88528e721f2d3b4117\",\"dweb:/ipfs/QmToL4MkNtn4BFipo6neazAsXwpcUxxhBBCkA6yVSLUAe9\"]},\"@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol\":{\"keccak256\":\"0xccb7e6475afcb1c5cb13b3fbf1329c10b93620a9b66393388066683915271a78\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://df5776161e3226ac31bfb919dfe5f42e173a08293fadb4ffa90ffb55e76869d7\",\"dweb:/ipfs/QmXtKfvWj1v6oha8urbnw4RmjSpmQjZsGGqK5qk5trK4nH\"]},\"@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol\":{\"keccak256\":\"0xb8d11e77eb1ed34a33720edb551d7d6a6b0eee2bfaa40a7024020e1fdf879b16\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://c583283c838cc624a96a69eaa823fa92ac5294ec88d417e266c09ea091e0ae62\",\"dweb:/ipfs/QmNdzitXaFADaxooWpB4WsckkDyr4j6GQRxBjyKXsvEeXv\"]},\"@openzeppelin/contracts/utils/Address.sol\":{\"keccak256\":\"0x069b2631bb5b5193a58ccf7a06266c7361bd2c20095667af4402817605627f45\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://6a4c96fafff76deda5697c3c5c98cade6e6e1b178254544c106bf360c079ce4e\",\"dweb:/ipfs/QmXmxubE3jnatFgZuN8ay1VV6hZ8WRmhvUjNpeVjki15HX\"]},\"@openzeppelin/contracts/utils/Context.sol\":{\"keccak256\":\"0xf930d2df426bfcfc1f7415be724f04081c96f4fb9ec8d0e3a521c07692dface0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://fc2bfdea0d2562c76fb3c4cf70a86c6ba25c5a30e8f8515c95aafdf8383f8395\",\"dweb:/ipfs/QmTbFya18786ckJfLYUoWau9jBTKfmWnWm5XSViWvB7PXN\"]},\"@openzeppelin/contracts/utils/Strings.sol\":{\"keccak256\":\"0x456e9b3a2bfe189b5249857f624f4139e59331db518483b456c4e587a20552e0\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://1123c9545decc48a011370ebab4bf53dda98524fa21f9498e68851ba8f0ffc0f\",\"dweb:/ipfs/QmUpgMg8EFDnv87ePKUjXxXpJT3qwHRj9VDNSnRxu7T9sy\"]},\"@openzeppelin/contracts/utils/introspection/ERC165.sol\":{\"keccak256\":\"0x5718c5df9bd67ac68a796961df938821bb5dc0cd4c6118d77e9145afb187409b\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://d10e1d9b26042424789246603906ad06143bf9a928f4e99de8b5e3bdc662f549\",\"dweb:/ipfs/Qmejonoaj5MLekPus229rJQHcC6E9dz2xorjHJR84fMfmn\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]}},\"version\":1}", "bytecode": "0x", "deployedBytecode": "0x", "immutableReferences": {}, "generatedSources": [], "deployedGeneratedSources": [], "sourceMap": "", "deployedSourceMap": "", "source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nimport \"../ERC721.sol\";\n\n/**\n * @dev ERC721 token with storage based token URI management.\n */\nabstract contract ERC721URIStorage is ERC721 {\n using Strings for uint256;\n\n // Optional mapping for token URIs\n mapping (uint256 => string) private _tokenURIs;\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n require(_exists(tokenId), \"ERC721URIStorage: URI query for nonexistent token\");\n\n string memory _tokenURI = _tokenURIs[tokenId];\n string memory base = _baseURI();\n\n // If there is no base URI, return the token URI.\n if (bytes(base).length == 0) {\n return _tokenURI;\n }\n // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).\n if (bytes(_tokenURI).length > 0) {\n return string(abi.encodePacked(base, _tokenURI));\n }\n\n return super.tokenURI(tokenId);\n }\n\n /**\n * @dev Sets `_tokenURI` as the tokenURI of `tokenId`.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual {\n require(_exists(tokenId), \"ERC721URIStorage: URI set of nonexistent token\");\n _tokenURIs[tokenId] = _tokenURI;\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId) internal virtual override {\n super._burn(tokenId);\n\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n}\n", "sourcePath": "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol", "ast": { "absolutePath": "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol", "exportedSymbols": { "Address": [ 3997 ], "Context": [ 4020 ], "ERC165": [ 4308 ], "ERC721": [ 3381 ], "ERC721URIStorage": [ 3643 ], "IERC165": [ 4320 ], "IERC721": [ 3497 ], "IERC721Enumerable": [ 3674 ], "IERC721Metadata": [ 3701 ], "IERC721Receiver": [ 3515 ], "Strings": [ 4284 ] }, "id": 3644, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 3517, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "33:23:8" }, { "absolutePath": "@openzeppelin/contracts/token/ERC721/ERC721.sol", "file": "../ERC721.sol", "id": 3518, "nodeType": "ImportDirective", "scope": 3644, "sourceUnit": 3382, "src": "58:23:8", "symbolAliases": [], "unitAlias": "" }, { "abstract": true, "baseContracts": [ { "baseName": { "id": 3520, "name": "ERC721", "nodeType": "IdentifierPath", "referencedDeclaration": 3381, "src": "191:6:8" }, "id": 3521, "nodeType": "InheritanceSpecifier", "src": "191:6:8" } ], "contractDependencies": [ 3381, 3497, 3701, 4020, 4308, 4320 ], "contractKind": "contract", "documentation": { "id": 3519, "nodeType": "StructuredDocumentation", "src": "83:69:8", "text": " @dev ERC721 token with storage based token URI management." }, "fullyImplemented": false, "id": 3643, "linearizedBaseContracts": [ 3643, 3381, 3701, 3497, 4308, 4320, 4020 ], "name": "ERC721URIStorage", "nodeType": "ContractDefinition", "nodes": [ { "id": 3524, "libraryName": { "id": 3522, "name": "Strings", "nodeType": "IdentifierPath", "referencedDeclaration": 4284, "src": "210:7:8" }, "nodeType": "UsingForDirective", "src": "204:26:8", "typeName": { "id": 3523, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "222:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "constant": false, "id": 3528, "mutability": "mutable", "name": "_tokenURIs", "nodeType": "VariableDeclaration", "scope": 3643, "src": "275:46:8", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string)" }, "typeName": { "id": 3527, "keyType": { "id": 3525, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "284:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "275:27:8", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string)" }, "valueType": { "id": 3526, "name": "string", "nodeType": "ElementaryTypeName", "src": "295:6:8", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } } }, "visibility": "private" }, { "baseFunctions": [ 2769 ], "body": { "id": 3589, "nodeType": "Block", "src": "476:575:8", "statements": [ { "expression": { "arguments": [ { "arguments": [ { "id": 3539, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3531, "src": "502:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3538, "name": "_exists", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3018, "src": "494:7:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view returns (bool)" } }, "id": 3540, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "494:16:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "hexValue": "45524337323155524953746f726167653a2055524920717565727920666f72206e6f6e6578697374656e7420746f6b656e", "id": 3541, "isConstant": false, "isLValue": false, "isPure": true, "kind": 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3644, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 3517, "literals": [ "solidity", "^", "0.8", ".0" ], "nodeType": "PragmaDirective", "src": "33:23:8" }, { "absolutePath": "@openzeppelin/contracts/token/ERC721/ERC721.sol", "file": "../ERC721.sol", "id": 3518, "nodeType": "ImportDirective", "scope": 3644, "sourceUnit": 3382, "src": "58:23:8", "symbolAliases": [], "unitAlias": "" }, { "abstract": true, "baseContracts": [ { "baseName": { "id": 3520, "name": "ERC721", "nodeType": "IdentifierPath", "referencedDeclaration": 3381, "src": "191:6:8" }, "id": 3521, "nodeType": "InheritanceSpecifier", "src": "191:6:8" } ], "contractDependencies": [ 3381, 3497, 3701, 4020, 4308, 4320 ], "contractKind": "contract", "documentation": { "id": 3519, "nodeType": "StructuredDocumentation", "src": "83:69:8", "text": " @dev ERC721 token with storage based token URI management." }, "fullyImplemented": false, "id": 3643, "linearizedBaseContracts": [ 3643, 3381, 3701, 3497, 4308, 4320, 4020 ], "name": "ERC721URIStorage", "nodeType": "ContractDefinition", "nodes": [ { "id": 3524, "libraryName": { "id": 3522, "name": "Strings", "nodeType": "IdentifierPath", "referencedDeclaration": 4284, "src": "210:7:8" }, "nodeType": "UsingForDirective", "src": "204:26:8", "typeName": { "id": 3523, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "222:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "constant": false, "id": 3528, "mutability": "mutable", "name": "_tokenURIs", "nodeType": "VariableDeclaration", "scope": 3643, "src": "275:46:8", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string)" }, "typeName": { "id": 3527, "keyType": { "id": 3525, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "284:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": 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"45524337323155524953746f726167653a2055524920736574206f66206e6f6e6578697374656e7420746f6b656e", "id": 3602, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1315:48:8", "typeDescriptions": { "typeIdentifier": "t_stringliteral_7521de1f20ce4d7bb86b61090bad73a87315a1f4baff36cc352901c7777280c4", "typeString": "literal_string \"ERC721URIStorage: URI set of nonexistent token\"" }, "value": "ERC721URIStorage: URI set of nonexistent token" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_7521de1f20ce4d7bb86b61090bad73a87315a1f4baff36cc352901c7777280c4", "typeString": "literal_string \"ERC721URIStorage: URI set of nonexistent token\"" } ], "id": 3598, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4294967278, 4294967278 ], "referencedDeclaration": 4294967278, "src": "1289:7:8", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 3603, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1289:75:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3604, "nodeType": "ExpressionStatement", "src": "1289:75:8" }, { "expression": { "id": 3609, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 3605, "name": "_tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3528, "src": "1374:10:8", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 3607, "indexExpression": { "id": 3606, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3593, "src": "1385:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1374:19:8", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 3608, "name": "_tokenURI", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3595, "src": "1396:9:8", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "1374:31:8", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 3610, "nodeType": "ExpressionStatement", "src": "1374:31:8" } ] }, "documentation": { "id": 3591, "nodeType": "StructuredDocumentation", "src": "1057:136:8", "text": " @dev Sets `_tokenURI` as the tokenURI of `tokenId`.\n Requirements:\n - `tokenId` must exist." }, "id": 3612, "implemented": true, "kind": "function", "modifiers": [], "name": "_setTokenURI", "nodeType": "FunctionDefinition", "parameters": { "id": 3596, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3593, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 3612, "src": "1220:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3592, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1220:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" }, { "constant": false, "id": 3595, "mutability": "mutable", "name": "_tokenURI", "nodeType": "VariableDeclaration", "scope": 3612, "src": "1237:23:8", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 3594, "name": "string", "nodeType": "ElementaryTypeName", "src": "1237:6:8", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "visibility": "internal" } ], "src": "1219:42:8" }, "returnParameters": { "id": 3597, "nodeType": "ParameterList", "parameters": [], "src": "1279:0:8" }, "scope": 3643, "src": "1198:214:8", "stateMutability": "nonpayable", "virtual": true, "visibility": "internal" }, { "baseFunctions": [ 3212 ], "body": { "id": 3641, "nodeType": "Block", "src": "1687:142:8", "statements": [ { "expression": { "arguments": [ { "id": 3622, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3615, "src": "1709:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "id": 3619, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4294967271, "src": "1697:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_super$_ERC721URIStorage_$3643_$", "typeString": "type(contract super ERC721URIStorage)" } }, "id": 3621, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_burn", "nodeType": "MemberAccess", "referencedDeclaration": 3212, "src": "1697:11:8", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 3623, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1697:20:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3624, "nodeType": "ExpressionStatement", "src": "1697:20:8" }, { "condition": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3633, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "expression": { "arguments": [ { "baseExpression": { "id": 3627, "name": "_tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3528, "src": "1738:10:8", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 3629, "indexExpression": { "id": 3628, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3615, "src": "1749:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1738:19:8", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } ], "id": 3626, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "1732:5:8", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes_storage_ptr_$", "typeString": "type(bytes storage pointer)" }, "typeName": { "id": 3625, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1732:5:8", "typeDescriptions": {} } }, "id": 3630, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1732:26:8", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes storage pointer" } }, "id": 3631, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "src": "1732:33:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "hexValue": "30", "id": 3632, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1769:1:8", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1732:38:8", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 3640, "nodeType": "IfStatement", "src": "1728:95:8", "trueBody": { "id": 3639, "nodeType": "Block", "src": "1772:51:8", "statements": [ { "expression": { "id": 3637, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "delete", "prefix": true, "src": "1786:26:8", "subExpression": { "baseExpression": { "id": 3634, "name": "_tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3528, "src": "1793:10:8", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 3636, "indexExpression": { "id": 3635, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3615, "src": "1804:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1793:19:8", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3638, "nodeType": "ExpressionStatement", "src": "1786:26:8" } ] } } ] }, "documentation": { "id": 3613, "nodeType": "StructuredDocumentation", "src": "1418:206:8", "text": " @dev Destroys `tokenId`.\n The approval is cleared when the token is burned.\n Requirements:\n - `tokenId` must exist.\n Emits a {Transfer} event." }, "id": 3642, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "overrides": { "id": 3617, "nodeType": "OverrideSpecifier", "overrides": [], "src": "1678:8:8" }, "parameters": { "id": 3616, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3615, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 3642, "src": "1644:15:8", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3614, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1644:7:8", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "1643:17:8" }, "returnParameters": { "id": 3618, "nodeType": "ParameterList", "parameters": [], "src": "1687:0:8" }, "scope": 3643, "src": "1629:200:8", "stateMutability": "nonpayable", "virtual": true, "visibility": "internal" } ], "scope": 3644, "src": "153:1678:8" } ], "src": "33:1799:8" }, "compiler": { "name": "solc", "version": "0.8.0+commit.c7dfd78e.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.3.4", "updatedAt": "2021-05-19T08:21:33.603Z", "devdoc": { "details": "ERC721 token with storage based token URI management.", "kind": "dev", "methods": { "approve(address,uint256)": { "details": "See {IERC721-approve}." }, "balanceOf(address)": { "details": "See {IERC721-balanceOf}." }, "getApproved(uint256)": { "details": "See {IERC721-getApproved}." }, "isApprovedForAll(address,address)": { "details": "See {IERC721-isApprovedForAll}." }, "name()": { "details": "See {IERC721Metadata-name}." }, "ownerOf(uint256)": { "details": "See {IERC721-ownerOf}." }, "safeTransferFrom(address,address,uint256)": { "details": "See {IERC721-safeTransferFrom}." }, "safeTransferFrom(address,address,uint256,bytes)": { "details": "See {IERC721-safeTransferFrom}." }, "setApprovalForAll(address,bool)": { "details": "See {IERC721-setApprovalForAll}." }, "supportsInterface(bytes4)": { "details": "See {IERC165-supportsInterface}." }, "symbol()": { "details": "See {IERC721Metadata-symbol}." }, "tokenURI(uint256)": { "details": "See {IERC721Metadata-tokenURI}." }, "transferFrom(address,address,uint256)": { "details": "See {IERC721-transferFrom}." } }, "version": 1 }, "userdoc": { "kind": "user", "methods": {}, "version": 1 } }