{ "contractName": "ERC721Token", "abi": [ { "constant": true, "inputs": [ { "name": "_tokenId", "type": "uint256" } ], "name": "getApproved", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "_to", "type": "address" }, { "name": "_tokenId", "type": "uint256" } ], "name": "approve", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_from", "type": "address" }, { "name": "_to", "type": "address" }, { "name": "_tokenId", "type": "uint256" } ], "name": "transferFrom", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_from", "type": "address" }, { "name": "_to", "type": "address" }, { "name": "_tokenId", "type": "uint256" } ], "name": "safeTransferFrom", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "_tokenId", "type": "uint256" } ], "name": "exists", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "_tokenId", "type": "uint256" } ], "name": "ownerOf", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "_owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "_to", "type": "address" }, { "name": "_approved", "type": "bool" } ], "name": "setApprovalForAll", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_from", "type": "address" }, { "name": "_to", "type": "address" }, { "name": "_tokenId", "type": "uint256" }, { "name": "_data", "type": "bytes" } ], "name": "safeTransferFrom", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "_owner", "type": "address" }, { "name": "_operator", "type": "address" } ], "name": "isApprovedForAll", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "inputs": [ { "name": "_name", "type": "string" }, { "name": "_symbol", "type": "string" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "_from", "type": "address" }, { "indexed": true, "name": "_to", "type": "address" }, { "indexed": false, "name": "_tokenId", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "_owner", "type": "address" }, { "indexed": true, "name": 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"type": "address" }, { "name": "_index", "type": "uint256" } ], "name": "tokenOfOwnerByIndex", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "totalSupply", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "_index", "type": "uint256" } ], "name": "tokenByIndex", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "bytecode": 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"source": "pragma solidity ^0.4.23;\n\nimport \"./ERC721.sol\";\nimport \"./ERC721BasicToken.sol\";\n\n\n/**\n * @title Full ERC721 Token\n * This implementation includes all the required and some optional functionality of the ERC721 standard\n * Moreover, it includes approve all functionality using operator terminology\n * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md\n */\ncontract ERC721Token is ERC721, ERC721BasicToken {\n // Token name\n string internal name_;\n\n // Token symbol\n string internal symbol_;\n\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) internal ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) internal ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] internal allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) internal allTokensIndex;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) internal tokenURIs;\n\n /**\n * @dev Constructor function\n */\n constructor(string _name, string _symbol) public {\n name_ = _name;\n symbol_ = _symbol;\n }\n\n /**\n * @dev Gets the token name\n * @return string representing the token name\n */\n function name() public view returns (string) {\n return name_;\n }\n\n /**\n * @dev Gets the token symbol\n * @return string representing the token symbol\n */\n function symbol() public view returns (string) {\n return symbol_;\n }\n\n /**\n * @dev Returns an URI for a given token ID\n * @dev Throws if the token ID does not exist. May return an empty string.\n * @param _tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 _tokenId) public view returns (string) {\n require(exists(_tokenId));\n return tokenURIs[_tokenId];\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner\n * @param _owner address owning the tokens list to be accessed\n * @param _index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(\n address _owner,\n uint256 _index\n )\n public\n view\n returns (uint256)\n {\n require(_index < balanceOf(_owner));\n return ownedTokens[_owner][_index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * @dev Reverts if the index is greater or equal to the total number of tokens\n * @param _index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 _index) public view returns (uint256) {\n require(_index < totalSupply());\n return allTokens[_index];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token\n * @dev Reverts if the token ID does not exist\n * @param _tokenId uint256 ID of the token to set its URI\n * @param _uri string URI to assign\n */\n function _setTokenURI(uint256 _tokenId, string _uri) internal {\n require(exists(_tokenId));\n tokenURIs[_tokenId] = _uri;\n }\n\n /**\n * @dev Internal function to add a token ID to the list of a given address\n * @param _to address representing the new owner of the given token ID\n * @param _tokenId uint256 ID of the token to be added to the tokens list of the given address\n */\n function addTokenTo(address _to, uint256 _tokenId) internal {\n super.addTokenTo(_to, _tokenId);\n uint256 length = ownedTokens[_to].length;\n ownedTokens[_to].push(_tokenId);\n ownedTokensIndex[_tokenId] = length;\n }\n\n /**\n * @dev Internal function to remove a token ID from the list of a given address\n * @param _from address representing the previous owner of the given token ID\n * @param _tokenId uint256 ID of the token to be removed from the tokens list of the given address\n */\n function removeTokenFrom(address _from, uint256 _tokenId) internal {\n super.removeTokenFrom(_from, _tokenId);\n\n uint256 tokenIndex = ownedTokensIndex[_tokenId];\n uint256 lastTokenIndex = ownedTokens[_from].length.sub(1);\n uint256 lastToken = ownedTokens[_from][lastTokenIndex];\n\n ownedTokens[_from][tokenIndex] = lastToken;\n ownedTokens[_from][lastTokenIndex] = 0;\n // Note that this will handle single-element arrays. In that case, both tokenIndex and lastTokenIndex are going to\n // be zero. Then we can make sure that we will remove _tokenId from the ownedTokens list since we are first swapping\n // the lastToken to the first position, and then dropping the element placed in the last position of the list\n\n ownedTokens[_from].length--;\n ownedTokensIndex[_tokenId] = 0;\n ownedTokensIndex[lastToken] = tokenIndex;\n }\n\n /**\n * @dev Internal function to mint a new token\n * @dev Reverts if the given token ID already exists\n * @param _to address the beneficiary that will own the minted token\n * @param _tokenId uint256 ID of the token to be minted by the msg.sender\n */\n function _mint(address _to, uint256 _tokenId) internal {\n super._mint(_to, _tokenId);\n\n allTokensIndex[_tokenId] = allTokens.length;\n allTokens.push(_tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token\n * @dev Reverts if the token does not exist\n * @param _owner owner of the token to burn\n * @param _tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address _owner, uint256 _tokenId) internal {\n super._burn(_owner, _tokenId);\n\n // Clear metadata (if any)\n if (bytes(tokenURIs[_tokenId]).length != 0) {\n delete tokenURIs[_tokenId];\n }\n\n // Reorg all tokens array\n uint256 tokenIndex = allTokensIndex[_tokenId];\n uint256 lastTokenIndex = allTokens.length.sub(1);\n uint256 lastToken = allTokens[lastTokenIndex];\n\n allTokens[tokenIndex] = lastToken;\n allTokens[lastTokenIndex] = 0;\n\n allTokens.length--;\n allTokensIndex[_tokenId] = 0;\n allTokensIndex[lastToken] = tokenIndex;\n }\n\n}\n", "sourcePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721Token.sol", "ast": { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721Token.sol", "exportedSymbols": { "ERC721Token": [ 6094 ] }, "id": 6095, "nodeType": "SourceUnit", "nodes": [ { "id": 5726, "literals": [ "solidity", "^", "0.4", ".23" ], "nodeType": "PragmaDirective", "src": "0:24:41" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721.sol", "file": "./ERC721.sol", "id": 5727, "nodeType": "ImportDirective", "scope": 6095, "sourceUnit": 5017, "src": "26:22:41", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721BasicToken.sol", "file": "./ERC721BasicToken.sol", "id": 5728, "nodeType": "ImportDirective", "scope": 6095, "sourceUnit": 5708, "src": "49:32:41", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 5729, "name": "ERC721", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5016, "src": "399:6:41", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC721_$5016", "typeString": "contract ERC721" } }, "id": 5730, "nodeType": "InheritanceSpecifier", "src": "399:6:41" }, { "arguments": null, "baseName": { "contractScope": null, "id": 5731, "name": "ERC721BasicToken", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5707, "src": "407:16:41", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC721BasicToken_$5707", "typeString": "contract ERC721BasicToken" } }, "id": 5732, "nodeType": "InheritanceSpecifier", "src": "407:16:41" } ], "contractDependencies": [ 4989, 5009, 5016, 5123, 5707 ], "contractKind": "contract", "documentation": "@title Full ERC721 Token\nThis implementation includes all the required and some optional functionality of the ERC721 standard\nMoreover, it includes approve all functionality using operator terminology\n@dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md", "fullyImplemented": true, "id": 6094, "linearizedBaseContracts": [ 6094, 5707, 5016, 5009, 4989, 5123 ], "name": "ERC721Token", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 5734, "name": "name_", "nodeType": "VariableDeclaration", "scope": 6094, "src": "444:21:41", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string" }, "typeName": { "id": 5733, "name": "string", "nodeType": "ElementaryTypeName", "src": "444:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5736, "name": "symbol_", "nodeType": "VariableDeclaration", "scope": 6094, "src": "488:23:41", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string" }, "typeName": { "id": 5735, "name": "string", "nodeType": "ElementaryTypeName", "src": "488:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5741, "name": "ownedTokens", "nodeType": "VariableDeclaration", "scope": 6094, "src": "567:50:41", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[])" }, "typeName": { "id": 5740, "keyType": { "id": 5737, "name": "address", "nodeType": "ElementaryTypeName", "src": "575:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "567:29:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[])" }, "valueType": { "baseType": { "id": 5738, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "586:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5739, "length": null, "nodeType": "ArrayTypeName", "src": "586:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": "uint256[]" } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5745, "name": "ownedTokensIndex", "nodeType": "VariableDeclaration", "scope": 6094, "src": "683:53:41", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" }, "typeName": { "id": 5744, "keyType": { "id": 5742, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "691:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "683:27:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" }, "valueType": { "id": 5743, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "702:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5748, "name": "allTokens", "nodeType": "VariableDeclaration", "scope": 6094, "src": "793:28:41", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[]" }, "typeName": { "baseType": { "id": 5746, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "793:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5747, "length": null, "nodeType": "ArrayTypeName", "src": "793:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": "uint256[]" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5752, "name": "allTokensIndex", "nodeType": "VariableDeclaration", "scope": 6094, "src": "888:51:41", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" }, "typeName": { "id": 5751, "keyType": { "id": 5749, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "896:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "888:27:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" }, "valueType": { "id": 5750, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "907:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5756, "name": "tokenURIs", "nodeType": "VariableDeclaration", "scope": 6094, "src": "981:45:41", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string)" }, "typeName": { "id": 5755, "keyType": { "id": 5753, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "989:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "981:26:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string)" }, "valueType": { "id": 5754, "name": "string", "nodeType": "ElementaryTypeName", "src": "1000:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } } }, "value": null, "visibility": "internal" }, { "body": { "id": 5771, "nodeType": "Block", "src": "1123:47:41", "statements": [ { "expression": { "argumentTypes": null, "id": 5765, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 5763, "name": "name_", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5734, "src": "1129:5:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5764, "name": "_name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5758, "src": "1137:5:41", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "1129:13:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 5766, "nodeType": "ExpressionStatement", "src": "1129:13:41" }, { "expression": { "argumentTypes": null, "id": 5769, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 5767, "name": "symbol_", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5736, "src": "1148:7:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5768, "name": "_symbol", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5760, "src": "1158:7:41", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "1148:17:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 5770, "nodeType": "ExpressionStatement", "src": "1148:17:41" } ] }, "documentation": "@dev Constructor function", "id": 5772, "implemented": true, "isConstructor": true, "isDeclaredConst": false, "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "parameters": { "id": 5761, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5758, "name": "_name", "nodeType": "VariableDeclaration", "scope": 5772, "src": "1086:12:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 5757, "name": "string", "nodeType": "ElementaryTypeName", "src": "1086:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5760, "name": "_symbol", "nodeType": "VariableDeclaration", "scope": 5772, "src": "1100:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 5759, "name": "string", "nodeType": "ElementaryTypeName", "src": "1100:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "1085:30:41" }, "payable": false, "returnParameters": { "id": 5762, "nodeType": "ParameterList", "parameters": [], "src": "1123:0:41" }, "scope": 6094, "src": "1074:96:41", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 5779, "nodeType": "Block", "src": "1309:23:41", "statements": [ { "expression": { "argumentTypes": null, "id": 5777, "name": "name_", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5734, "src": "1322:5:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "functionReturnParameters": 5776, "id": 5778, "nodeType": "Return", "src": "1315:12:41" } ] }, "documentation": "@dev Gets the token name\n@return string representing the token name", "id": 5780, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "name", "nodeType": "FunctionDefinition", "parameters": { "id": 5773, "nodeType": "ParameterList", "parameters": [], "src": "1277:2:41" }, "payable": false, "returnParameters": { "id": 5776, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5775, "name": "", "nodeType": "VariableDeclaration", "scope": 5780, "src": "1301:6:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 5774, "name": "string", "nodeType": "ElementaryTypeName", "src": "1301:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "1300:8:41" }, "scope": 6094, "src": "1264:68:41", "stateMutability": "view", "superFunction": 4996, "visibility": "public" }, { "body": { "id": 5787, "nodeType": "Block", "src": "1477:25:41", "statements": [ { "expression": { "argumentTypes": null, "id": 5785, "name": "symbol_", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5736, "src": "1490:7:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "functionReturnParameters": 5784, "id": 5786, "nodeType": "Return", "src": "1483:14:41" } ] }, "documentation": "@dev Gets the token symbol\n@return string representing the token symbol", "id": 5788, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "symbol", "nodeType": "FunctionDefinition", "parameters": { "id": 5781, "nodeType": "ParameterList", "parameters": [], "src": "1445:2:41" }, "payable": false, "returnParameters": { "id": 5784, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5783, "name": "", "nodeType": "VariableDeclaration", "scope": 5788, "src": "1469:6:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 5782, "name": "string", "nodeType": "ElementaryTypeName", "src": "1469:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "1468:8:41" }, "scope": 6094, "src": "1430:72:41", "stateMutability": "view", "superFunction": 5001, "visibility": "public" }, { "body": { "id": 5805, "nodeType": "Block", "src": "1760:68:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5797, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5790, "src": "1781:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5796, "name": "exists", "nodeType": "Identifier", "overloadedDeclarations": [ 5251 ], "referencedDeclaration": 5251, "src": "1774:6:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view returns (bool)" } }, "id": 5798, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1774:16:41", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5795, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "1766:7:41", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5799, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1766:25:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5800, "nodeType": "ExpressionStatement", "src": "1766:25:41" }, { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5801, "name": "tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5756, "src": "1804:9:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 5803, "indexExpression": { "argumentTypes": null, "id": 5802, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5790, "src": "1814:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1804:19:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "functionReturnParameters": 5794, "id": 5804, "nodeType": "Return", "src": "1797:26:41" } ] }, "documentation": "@dev Returns an URI for a given token ID\n@dev Throws if the token ID does not exist. May return an empty string.\n@param _tokenId uint256 ID of the token to query", "id": 5806, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "tokenURI", "nodeType": "FunctionDefinition", "parameters": { "id": 5791, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5790, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5806, "src": "1713:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5789, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1713:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1712:18:41" }, "payable": false, "returnParameters": { "id": 5794, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5793, "name": "", "nodeType": "VariableDeclaration", "scope": 5806, "src": "1752:6:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 5792, "name": "string", "nodeType": "ElementaryTypeName", "src": "1752:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "1751:8:41" }, "scope": 6094, "src": "1695:133:41", "stateMutability": "view", "superFunction": 5008, "visibility": "public" }, { "body": { "id": 5829, "nodeType": "Block", "src": "2306:86:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 5820, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5816, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5810, "src": "2320:6:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5818, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5808, "src": "2339:6:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 5817, "name": "balanceOf", "nodeType": "Identifier", "overloadedDeclarations": [ 5207 ], "referencedDeclaration": 5207, "src": "2329:9:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_uint256_$", "typeString": "function (address) view returns (uint256)" } }, "id": 5819, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", 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"argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5823, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "2360:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5825, "indexExpression": { "argumentTypes": null, "id": 5824, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5808, "src": "2372:6:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2360:19:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5827, "indexExpression": { "argumentTypes": null, "id": 5826, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5810, "src": "2380:6:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2360:27:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 5814, "id": 5828, "nodeType": "Return", "src": "2353:34:41" } ] }, "documentation": "@dev Gets the token ID at a given index of the tokens list of the requested owner\n@param _owner address owning the tokens list to be accessed\n@param _index uint256 representing the index to be accessed of the requested tokens list\n@return uint256 token ID at the given index of the tokens list owned by the requested address", "id": 5830, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "tokenOfOwnerByIndex", "nodeType": "FunctionDefinition", "parameters": { "id": 5811, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5808, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 5830, "src": "2223:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5807, "name": "address", "nodeType": "ElementaryTypeName", "src": "2223:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5810, "name": "_index", "nodeType": "VariableDeclaration", "scope": 5830, "src": "2243:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5809, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2243:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2217:44:41" }, "payable": false, "returnParameters": { "id": 5814, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5813, "name": "", "nodeType": "VariableDeclaration", "scope": 5830, "src": "2295:7:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5812, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2295:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2294:9:41" }, "scope": 6094, "src": "2189:203:41", "stateMutability": "view", "superFunction": 4981, "visibility": "public" }, { "body": { "id": 5838, "nodeType": "Block", "src": "2587:34:41", "statements": [ { "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5835, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "2600:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5836, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2600:16:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 5834, "id": 5837, "nodeType": "Return", "src": "2593:23:41" } ] }, "documentation": "@dev Gets the total amount of tokens stored by the contract\n@return uint256 representing the total amount of tokens", "id": 5839, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "totalSupply", "nodeType": "FunctionDefinition", "parameters": { "id": 5831, "nodeType": "ParameterList", "parameters": [], "src": "2554:2:41" }, "payable": false, "returnParameters": { "id": 5834, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5833, "name": "", "nodeType": "VariableDeclaration", "scope": 5839, "src": "2578:7:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5832, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2578:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2577:9:41" }, "scope": 6094, "src": "2534:87:41", "stateMutability": "view", "superFunction": 4972, "visibility": "public" }, { "body": { "id": 5857, "nodeType": "Block", "src": "3018:72:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 5850, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5847, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5841, "src": "3032:6:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 5848, "name": "totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [ 5839 ], "referencedDeclaration": 5839, "src": "3041:11:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_uint256_$", "typeString": "function () view returns (uint256)" } }, "id": 5849, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3041:13:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3032:22:41", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5846, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "3024:7:41", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5851, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3024:31:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5852, "nodeType": "ExpressionStatement", "src": "3024:31:41" }, { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5853, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "3068:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5855, "indexExpression": { "argumentTypes": null, "id": 5854, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5841, "src": "3078:6:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3068:17:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 5845, "id": 5856, "nodeType": "Return", "src": "3061:24:41" } ] }, "documentation": "@dev Gets the token ID at a given index of all the tokens in this contract\n@dev Reverts if the index is greater or equal to the total number of tokens\n@param _index uint256 representing the index to be accessed of the tokens list\n@return uint256 token ID at the given index of the tokens list", "id": 5858, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "tokenByIndex", "nodeType": "FunctionDefinition", "parameters": { "id": 5842, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5841, "name": "_index", "nodeType": "VariableDeclaration", "scope": 5858, "src": "2972:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5840, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2972:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2971:16:41" }, "payable": false, "returnParameters": { "id": 5845, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5844, "name": "", "nodeType": "VariableDeclaration", "scope": 5858, "src": "3009:7:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5843, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3009:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3008:9:41" }, "scope": 6094, "src": "2950:140:41", "stateMutability": "view", "superFunction": 4988, "visibility": "public" }, { "body": { "id": 5877, "nodeType": "Block", "src": "3382:68:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5867, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5860, "src": "3403:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5866, "name": "exists", "nodeType": "Identifier", "overloadedDeclarations": [ 5251 ], "referencedDeclaration": 5251, "src": "3396:6:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view returns (bool)" } }, "id": 5868, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3396:16:41", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5865, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "3388:7:41", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5869, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3388:25:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5870, "nodeType": "ExpressionStatement", "src": "3388:25:41" }, { "expression": { "argumentTypes": null, "id": 5875, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5871, "name": "tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5756, "src": "3419:9:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 5873, "indexExpression": { "argumentTypes": null, "id": 5872, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5860, "src": "3429:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "3419:19:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5874, "name": "_uri", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5862, "src": "3441:4:41", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "3419:26:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 5876, "nodeType": "ExpressionStatement", "src": "3419:26:41" } ] }, "documentation": "@dev Internal function to set the token URI for a given token\n@dev Reverts if the token ID does not exist\n@param _tokenId uint256 ID of the token to set its URI\n@param _uri string URI to assign", "id": 5878, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_setTokenURI", "nodeType": "FunctionDefinition", "parameters": { "id": 5863, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5860, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5878, "src": "3342:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5859, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3342:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5862, "name": "_uri", "nodeType": "VariableDeclaration", "scope": 5878, "src": "3360:11:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 5861, "name": "string", "nodeType": "ElementaryTypeName", "src": "3360:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "3341:31:41" }, "payable": false, "returnParameters": { "id": 5864, "nodeType": "ParameterList", "parameters": [], "src": "3382:0:41" }, "scope": 6094, "src": "3320:130:41", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5912, "nodeType": "Block", "src": "3773:166:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5888, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5880, "src": "3796:3:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5889, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5882, "src": "3801:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 5885, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6191, "src": "3779:5:41", "typeDescriptions": { "typeIdentifier": "t_super$_ERC721Token_$6094", "typeString": "contract super ERC721Token" } }, "id": 5887, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "addTokenTo", "nodeType": "MemberAccess", "referencedDeclaration": 5633, "src": "3779:16:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5890, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3779:31:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5891, "nodeType": "ExpressionStatement", "src": "3779:31:41" }, { "assignments": [ 5893 ], "declarations": [ { "constant": false, "id": 5893, "name": "length", "nodeType": "VariableDeclaration", "scope": 5913, "src": "3816:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5892, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3816:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 5898, "initialValue": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5894, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "3833:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5896, "indexExpression": { "argumentTypes": null, "id": 5895, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5880, "src": "3845:3:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3833:16:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5897, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3833:23:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "3816:40:41" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5903, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5882, "src": "3884:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5899, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "3862:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5901, "indexExpression": { "argumentTypes": null, "id": 5900, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5880, "src": "3874:3:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3862:16:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5902, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "push", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3862:21:41", "typeDescriptions": { "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", "typeString": "function (uint256) returns (uint256)" } }, "id": 5904, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3862:31:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5905, "nodeType": "ExpressionStatement", "src": "3862:31:41" }, { "expression": { "argumentTypes": null, "id": 5910, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5906, "name": "ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5745, "src": "3899:16:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 5908, "indexExpression": { "argumentTypes": null, "id": 5907, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5882, "src": "3916:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "3899:26:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5909, "name": "length", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5893, "src": "3928:6:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3899:35:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5911, "nodeType": "ExpressionStatement", "src": "3899:35:41" } ] }, "documentation": "@dev Internal function to add a token ID to the list of a given address\n@param _to address representing the new owner of the given token ID\n@param _tokenId uint256 ID of the token to be added to the tokens list of the given address", "id": 5913, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "addTokenTo", "nodeType": "FunctionDefinition", "parameters": { "id": 5883, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5880, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5913, "src": "3733:11:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5879, "name": "address", "nodeType": "ElementaryTypeName", "src": "3733:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5882, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5913, "src": "3746:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5881, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3746:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3732:31:41" }, "payable": false, "returnParameters": { "id": 5884, "nodeType": "ParameterList", "parameters": [], "src": "3773:0:41" }, "scope": 6094, "src": "3713:226:41", "stateMutability": "nonpayable", "superFunction": 5633, "visibility": "internal" }, { "body": { "id": 5985, "nodeType": "Block", "src": "4285:789:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5923, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4313:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5924, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5917, "src": "4320:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 5920, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6191, "src": "4291:5:41", "typeDescriptions": { "typeIdentifier": "t_super$_ERC721Token_$6094", "typeString": "contract super ERC721Token" } }, "id": 5922, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "removeTokenFrom", "nodeType": "MemberAccess", "referencedDeclaration": 5668, "src": "4291:21:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5925, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4291:38:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5926, "nodeType": "ExpressionStatement", "src": "4291:38:41" }, { "assignments": [ 5928 ], "declarations": [ { "constant": false, "id": 5928, "name": "tokenIndex", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4336:18:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5927, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4336:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 5932, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5929, "name": "ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5745, "src": "4357:16:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 5931, "indexExpression": { "argumentTypes": null, "id": 5930, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5917, "src": "4374:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4357:26:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4336:47:41" }, { "assignments": [ 5934 ], "declarations": [ { "constant": false, "id": 5934, "name": "lastTokenIndex", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4389:22:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5933, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4389:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 5942, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 5940, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4444:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5935, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4414:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5937, "indexExpression": { "argumentTypes": null, "id": 5936, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4426:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4414:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5938, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4414:25:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5939, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 4256, "src": "4414:29:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 5941, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4414:32:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4389:57:41" }, { "assignments": [ 5944 ], "declarations": [ { "constant": false, "id": 5944, "name": "lastToken", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4452:17:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5943, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4452:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 5950, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5945, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4472:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5947, "indexExpression": { "argumentTypes": null, "id": 5946, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4484:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4472:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5949, "indexExpression": { "argumentTypes": null, "id": 5948, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5934, "src": "4491:14:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4472:34:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4452:54:41" }, { "expression": { "argumentTypes": null, "id": 5957, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5951, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4513:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5954, "indexExpression": { "argumentTypes": null, "id": 5952, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4525:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4513:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5955, "indexExpression": { "argumentTypes": null, "id": 5953, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5928, "src": "4532:10:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4513:30:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5956, "name": "lastToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5944, "src": "4546:9:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4513:42:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5958, "nodeType": "ExpressionStatement", "src": "4513:42:41" }, { "expression": { "argumentTypes": null, "id": 5965, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5959, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4561:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5962, "indexExpression": { "argumentTypes": null, "id": 5960, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4573:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4561:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5963, "indexExpression": { "argumentTypes": null, "id": 5961, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5934, "src": "4580:14:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4561:34:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 5964, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4598:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "4561:38:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5966, "nodeType": "ExpressionStatement", "src": "4561:38:41" }, { "expression": { "argumentTypes": null, "id": 5971, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "--", "prefix": false, "src": "4960:27:41", "subExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5967, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4960:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5969, "indexExpression": { "argumentTypes": null, "id": 5968, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4972:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4960:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5970, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4960:25:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5972, "nodeType": "ExpressionStatement", "src": "4960:27:41" }, { "expression": { "argumentTypes": null, "id": 5977, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5973, "name": "ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5745, "src": "4993:16:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 5975, "indexExpression": { "argumentTypes": null, "id": 5974, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5917, "src": "5010:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4993:26:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 5976, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5022:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "4993:30:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5978, "nodeType": "ExpressionStatement", "src": "4993:30:41" }, { "expression": { "argumentTypes": null, "id": 5983, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5979, "name": "ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5745, "src": "5029:16:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 5981, "indexExpression": { "argumentTypes": null, "id": 5980, "name": "lastToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5944, "src": "5046:9:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5029:27:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5982, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5928, "src": "5059:10:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5029:40:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5984, "nodeType": "ExpressionStatement", "src": "5029:40:41" } ] }, "documentation": "@dev Internal function to remove a token ID from the list of a given address\n@param _from address representing the previous owner of the given token ID\n@param _tokenId uint256 ID of the token to be removed from the tokens list of the given address", "id": 5986, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "removeTokenFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 5918, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5915, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4243:13:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5914, "name": "address", "nodeType": "ElementaryTypeName", "src": "4243:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5917, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4258:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5916, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4258:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4242:33:41" }, "payable": false, "returnParameters": { "id": 5919, "nodeType": "ParameterList", "parameters": [], "src": "4285:0:41" }, "scope": 6094, "src": "4218:856:41", "stateMutability": "nonpayable", "superFunction": 5668, "visibility": "internal" }, { "body": { "id": 6013, "nodeType": "Block", "src": "5395:117:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5996, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5988, "src": "5413:3:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5997, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5990, "src": "5418:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 5993, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6191, "src": "5401:5:41", "typeDescriptions": { "typeIdentifier": "t_super$_ERC721Token_$6094", "typeString": "contract super ERC721Token" } }, "id": 5995, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_mint", "nodeType": "MemberAccess", "referencedDeclaration": 5531, "src": "5401:11:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5998, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5401:26:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5999, "nodeType": "ExpressionStatement", "src": "5401:26:41" }, { "expression": { "argumentTypes": null, "id": 6005, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6000, "name": "allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5752, "src": "5434:14:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 6002, "indexExpression": { "argumentTypes": null, "id": 6001, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5990, "src": "5449:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5434:24:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6003, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "5461:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6004, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5461:16:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5434:43:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6006, "nodeType": "ExpressionStatement", "src": "5434:43:41" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6010, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5990, "src": "5498:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 6007, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "5483:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6009, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "push", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5483:14:41", "typeDescriptions": { "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", "typeString": "function (uint256) returns (uint256)" } }, "id": 6011, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5483:24:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6012, "nodeType": "ExpressionStatement", "src": "5483:24:41" } ] }, "documentation": "@dev Internal function to mint a new token\n@dev Reverts if the given token ID already exists\n@param _to address the beneficiary that will own the minted token\n@param _tokenId uint256 ID of the token to be minted by the msg.sender", "id": 6014, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "parameters": { "id": 5991, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5988, "name": "_to", "nodeType": "VariableDeclaration", "scope": 6014, "src": "5355:11:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5987, "name": "address", "nodeType": "ElementaryTypeName", "src": "5355:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5990, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 6014, "src": "5368:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5989, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5368:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5354:31:41" }, "payable": false, "returnParameters": { "id": 5992, "nodeType": "ParameterList", "parameters": [], "src": "5395:0:41" }, "scope": 6094, "src": "5340:172:41", "stateMutability": "nonpayable", "superFunction": 5531, "visibility": "internal" }, { "body": { "id": 6092, "nodeType": "Block", "src": "5807:527:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6024, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6016, "src": "5825:6:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 6025, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "5833:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 6021, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6191, "src": "5813:5:41", "typeDescriptions": { "typeIdentifier": "t_super$_ERC721Token_$6094", "typeString": "contract super ERC721Token" } }, "id": 6023, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_burn", "nodeType": "MemberAccess", "referencedDeclaration": 5557, "src": "5813:11:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 6026, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5813:29:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6027, "nodeType": "ExpressionStatement", "src": "5813:29:41" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 6035, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6029, "name": "tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5756, "src": "5890:9:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 6031, "indexExpression": { "argumentTypes": null, "id": 6030, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "5900:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5890:19:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } ], "id": 6028, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5884:5:41", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes_storage_ptr_$", "typeString": "type(bytes storage pointer)" }, "typeName": "bytes" }, "id": 6032, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5884:26:41", "typeDescriptions": { "typeIdentifier": "t_bytes_storage", "typeString": "bytes storage ref" } }, "id": 6033, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5884:33:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 6034, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5921:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "5884:38:41", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 6042, "nodeType": "IfStatement", "src": "5880:85:41", "trueBody": { "id": 6041, "nodeType": "Block", "src": "5924:41:41", "statements": [ { "expression": { "argumentTypes": null, "id": 6039, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "delete", "prefix": true, "src": "5932:26:41", "subExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6036, "name": "tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5756, "src": "5939:9:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 6038, "indexExpression": { "argumentTypes": null, "id": 6037, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "5949:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5939:19:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6040, "nodeType": "ExpressionStatement", "src": "5932:26:41" } ] } }, { "assignments": [ 6044 ], "declarations": [ { "constant": false, "id": 6044, "name": "tokenIndex", "nodeType": "VariableDeclaration", "scope": 6093, "src": "6001:18:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6043, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6001:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6048, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6045, "name": "allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5752, "src": "6022:14:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 6047, "indexExpression": { "argumentTypes": null, "id": 6046, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "6037:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6022:24:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "6001:45:41" }, { "assignments": [ 6050 ], "declarations": [ { "constant": false, "id": 6050, "name": "lastTokenIndex", "nodeType": "VariableDeclaration", "scope": 6093, "src": "6052:22:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6049, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6052:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6056, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 6054, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6098:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6051, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "6077:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6052, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6077:16:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6053, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 4256, "src": "6077:20:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 6055, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6077:23:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "6052:48:41" }, { "assignments": [ 6058 ], "declarations": [ { "constant": false, "id": 6058, "name": "lastToken", "nodeType": "VariableDeclaration", "scope": 6093, "src": "6106:17:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6057, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6106:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6062, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6059, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "6126:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6061, "indexExpression": { "argumentTypes": null, "id": 6060, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6050, "src": "6136:14:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6126:25:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "6106:45:41" }, { "expression": { "argumentTypes": null, "id": 6067, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6063, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "6158:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6065, "indexExpression": { "argumentTypes": null, "id": 6064, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6044, "src": "6168:10:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6158:21:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 6066, "name": "lastToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6058, "src": "6182:9:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6158:33:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6068, "nodeType": "ExpressionStatement", "src": "6158:33:41" }, { "expression": { "argumentTypes": null, "id": 6073, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6069, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "6197:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6071, "indexExpression": { "argumentTypes": null, "id": 6070, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6050, "src": "6207:14:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6197:25:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 6072, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6225:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "6197:29:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6074, "nodeType": "ExpressionStatement", "src": "6197:29:41" }, { "expression": { "argumentTypes": null, "id": 6078, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "--", "prefix": false, "src": "6233:18:41", "subExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6075, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "6233:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6077, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6233:16:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6079, "nodeType": "ExpressionStatement", "src": "6233:18:41" }, { "expression": { "argumentTypes": null, "id": 6084, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6080, "name": "allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5752, "src": "6257:14:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 6082, "indexExpression": { "argumentTypes": null, "id": 6081, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "6272:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6257:24:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 6083, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6284:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "6257:28:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6085, "nodeType": "ExpressionStatement", "src": "6257:28:41" }, { "expression": { "argumentTypes": null, "id": 6090, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6086, "name": "allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5752, "src": "6291:14:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 6088, "indexExpression": { "argumentTypes": null, "id": 6087, "name": "lastToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6058, "src": "6306:9:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6291:25:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 6089, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6044, "src": "6319:10:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6291:38:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6091, "nodeType": "ExpressionStatement", "src": "6291:38:41" } ] }, "documentation": "@dev Internal function to burn a specific token\n@dev Reverts if the token does not exist\n@param _owner owner of the token to burn\n@param _tokenId uint256 ID of the token being burned by the msg.sender", "id": 6093, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 6019, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6016, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 6093, "src": "5764:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 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"src": "0:6338:41" }, "legacyAST": { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721Token.sol", "exportedSymbols": { "ERC721Token": [ 6094 ] }, "id": 6095, "nodeType": "SourceUnit", "nodes": [ { "id": 5726, "literals": [ "solidity", "^", "0.4", ".23" ], "nodeType": "PragmaDirective", "src": "0:24:41" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721.sol", "file": "./ERC721.sol", "id": 5727, "nodeType": "ImportDirective", "scope": 6095, "sourceUnit": 5017, "src": "26:22:41", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721BasicToken.sol", "file": "./ERC721BasicToken.sol", "id": 5728, "nodeType": "ImportDirective", "scope": 6095, "sourceUnit": 5708, "src": "49:32:41", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 5729, "name": "ERC721", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5016, 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"argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5823, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "2360:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5825, "indexExpression": { "argumentTypes": null, "id": 5824, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5808, "src": "2372:6:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2360:19:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5827, "indexExpression": { "argumentTypes": null, "id": 5826, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5810, "src": "2380:6:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2360:27:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 5814, "id": 5828, "nodeType": "Return", "src": "2353:34:41" } ] }, "documentation": "@dev Gets the token ID at a given index of the tokens list of the requested owner\n@param _owner address owning the tokens list to be accessed\n@param _index uint256 representing the index to be accessed of the requested tokens list\n@return uint256 token ID at the given index of the tokens list owned by the requested address", "id": 5830, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "tokenOfOwnerByIndex", "nodeType": "FunctionDefinition", "parameters": { "id": 5811, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5808, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 5830, "src": "2223:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5807, "name": "address", "nodeType": "ElementaryTypeName", "src": "2223:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5810, "name": "_index", "nodeType": "VariableDeclaration", "scope": 5830, "src": "2243:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5809, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2243:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2217:44:41" }, "payable": false, "returnParameters": { "id": 5814, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5813, "name": "", "nodeType": "VariableDeclaration", "scope": 5830, "src": "2295:7:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5812, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2295:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2294:9:41" }, "scope": 6094, "src": "2189:203:41", "stateMutability": "view", "superFunction": 4981, "visibility": "public" }, { "body": { "id": 5838, "nodeType": "Block", "src": "2587:34:41", "statements": [ { "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5835, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "2600:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5836, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2600:16:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 5834, "id": 5837, "nodeType": "Return", "src": "2593:23:41" } ] }, "documentation": "@dev Gets the total amount of tokens stored by the contract\n@return uint256 representing the total amount of tokens", "id": 5839, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "totalSupply", "nodeType": "FunctionDefinition", "parameters": { "id": 5831, "nodeType": "ParameterList", "parameters": [], "src": "2554:2:41" }, "payable": false, "returnParameters": { "id": 5834, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5833, "name": "", "nodeType": "VariableDeclaration", "scope": 5839, "src": "2578:7:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5832, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2578:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2577:9:41" }, "scope": 6094, "src": "2534:87:41", "stateMutability": "view", "superFunction": 4972, "visibility": "public" }, { "body": { "id": 5857, "nodeType": "Block", "src": "3018:72:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 5850, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5847, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5841, "src": "3032:6:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 5848, "name": "totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [ 5839 ], "referencedDeclaration": 5839, "src": "3041:11:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_uint256_$", "typeString": "function () view returns (uint256)" } }, "id": 5849, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3041:13:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": 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5748, "src": "3068:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5855, "indexExpression": { "argumentTypes": null, "id": 5854, "name": "_index", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5841, "src": "3078:6:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3068:17:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 5845, "id": 5856, "nodeType": "Return", "src": "3061:24:41" } ] }, "documentation": "@dev Gets the token ID at a given index of all the tokens in this contract\n@dev Reverts if the index is greater or equal to the total number of tokens\n@param _index uint256 representing the index to be accessed of the tokens list\n@return uint256 token ID at the given index of the tokens list", "id": 5858, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "tokenByIndex", "nodeType": "FunctionDefinition", "parameters": { "id": 5842, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5841, "name": "_index", "nodeType": "VariableDeclaration", "scope": 5858, "src": "2972:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5840, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2972:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2971:16:41" }, "payable": false, "returnParameters": { "id": 5845, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5844, "name": "", "nodeType": "VariableDeclaration", "scope": 5858, "src": "3009:7:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5843, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3009:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3008:9:41" }, "scope": 6094, "src": "2950:140:41", "stateMutability": "view", "superFunction": 4988, "visibility": "public" }, { "body": { "id": 5877, "nodeType": "Block", "src": "3382:68:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5867, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5860, "src": "3403:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5866, "name": "exists", "nodeType": "Identifier", "overloadedDeclarations": [ 5251 ], "referencedDeclaration": 5251, "src": "3396:6:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view returns (bool)" } }, "id": 5868, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3396:16:41", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5865, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "3388:7:41", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5869, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3388:25:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5870, "nodeType": "ExpressionStatement", "src": "3388:25:41" }, { "expression": { "argumentTypes": null, "id": 5875, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5871, "name": "tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5756, "src": "3419:9:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 5873, "indexExpression": { "argumentTypes": null, "id": 5872, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5860, "src": "3429:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "3419:19:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5874, "name": "_uri", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5862, "src": "3441:4:41", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "3419:26:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 5876, "nodeType": "ExpressionStatement", "src": "3419:26:41" } ] }, "documentation": "@dev Internal function to set the token URI for a given token\n@dev Reverts if the token ID does not exist\n@param _tokenId uint256 ID of the token to set its URI\n@param _uri string URI to assign", "id": 5878, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_setTokenURI", "nodeType": "FunctionDefinition", "parameters": { "id": 5863, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5860, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5878, "src": "3342:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5859, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3342:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5862, "name": "_uri", "nodeType": "VariableDeclaration", "scope": 5878, "src": "3360:11:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 5861, "name": "string", "nodeType": "ElementaryTypeName", "src": "3360:6:41", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "3341:31:41" }, "payable": false, "returnParameters": { "id": 5864, "nodeType": "ParameterList", "parameters": [], "src": "3382:0:41" }, "scope": 6094, "src": "3320:130:41", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5912, "nodeType": "Block", "src": "3773:166:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5888, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5880, "src": "3796:3:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5889, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5882, "src": "3801:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 5885, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6191, "src": "3779:5:41", "typeDescriptions": { "typeIdentifier": "t_super$_ERC721Token_$6094", "typeString": "contract super ERC721Token" } }, "id": 5887, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "addTokenTo", "nodeType": "MemberAccess", "referencedDeclaration": 5633, "src": "3779:16:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5890, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3779:31:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5891, "nodeType": "ExpressionStatement", "src": "3779:31:41" }, { "assignments": [ 5893 ], "declarations": [ { "constant": false, "id": 5893, "name": "length", "nodeType": "VariableDeclaration", "scope": 5913, "src": "3816:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5892, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3816:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 5898, "initialValue": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5894, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "3833:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5896, "indexExpression": { "argumentTypes": null, "id": 5895, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5880, "src": "3845:3:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3833:16:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5897, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3833:23:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "3816:40:41" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5903, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5882, "src": "3884:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5899, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "3862:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5901, "indexExpression": { "argumentTypes": null, "id": 5900, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5880, "src": "3874:3:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3862:16:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5902, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "push", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3862:21:41", "typeDescriptions": { "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", "typeString": "function (uint256) returns (uint256)" } }, "id": 5904, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3862:31:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5905, "nodeType": "ExpressionStatement", "src": "3862:31:41" }, { "expression": { "argumentTypes": null, "id": 5910, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5906, "name": "ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5745, "src": "3899:16:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 5908, "indexExpression": { "argumentTypes": null, "id": 5907, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5882, "src": "3916:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "3899:26:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5909, "name": "length", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5893, "src": "3928:6:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3899:35:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5911, "nodeType": "ExpressionStatement", "src": "3899:35:41" } ] }, "documentation": "@dev Internal function to add a token ID to the list of a given address\n@param _to address representing the new owner of the given token ID\n@param _tokenId uint256 ID of the token to be added to the tokens list of the given address", "id": 5913, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "addTokenTo", "nodeType": "FunctionDefinition", "parameters": { "id": 5883, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5880, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5913, "src": "3733:11:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5879, "name": "address", "nodeType": "ElementaryTypeName", "src": "3733:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5882, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5913, "src": "3746:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5881, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3746:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3732:31:41" }, "payable": false, "returnParameters": { "id": 5884, "nodeType": "ParameterList", "parameters": [], "src": "3773:0:41" }, "scope": 6094, "src": "3713:226:41", "stateMutability": "nonpayable", "superFunction": 5633, "visibility": "internal" }, { "body": { "id": 5985, "nodeType": "Block", "src": "4285:789:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5923, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4313:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5924, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5917, "src": "4320:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 5920, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6191, "src": "4291:5:41", "typeDescriptions": { "typeIdentifier": "t_super$_ERC721Token_$6094", "typeString": "contract super ERC721Token" } }, "id": 5922, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "removeTokenFrom", "nodeType": "MemberAccess", "referencedDeclaration": 5668, "src": "4291:21:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5925, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4291:38:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5926, "nodeType": "ExpressionStatement", "src": "4291:38:41" }, { "assignments": [ 5928 ], "declarations": [ { "constant": false, "id": 5928, "name": "tokenIndex", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4336:18:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5927, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4336:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 5932, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5929, "name": "ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5745, "src": "4357:16:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 5931, "indexExpression": { "argumentTypes": null, "id": 5930, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5917, "src": "4374:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4357:26:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4336:47:41" }, { "assignments": [ 5934 ], "declarations": [ { "constant": false, "id": 5934, "name": "lastTokenIndex", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4389:22:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5933, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4389:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 5942, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 5940, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4444:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5935, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4414:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5937, "indexExpression": { "argumentTypes": null, "id": 5936, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4426:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4414:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5938, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4414:25:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5939, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 4256, "src": "4414:29:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 5941, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4414:32:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4389:57:41" }, { "assignments": [ 5944 ], "declarations": [ { "constant": false, "id": 5944, "name": "lastToken", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4452:17:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5943, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4452:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 5950, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5945, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4472:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5947, "indexExpression": { "argumentTypes": null, "id": 5946, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4484:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4472:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5949, "indexExpression": { "argumentTypes": null, "id": 5948, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5934, "src": "4491:14:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4472:34:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4452:54:41" }, { "expression": { "argumentTypes": null, "id": 5957, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5951, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4513:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5954, "indexExpression": { "argumentTypes": null, "id": 5952, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4525:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4513:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5955, "indexExpression": { "argumentTypes": null, "id": 5953, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5928, "src": "4532:10:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4513:30:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5956, "name": "lastToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5944, "src": "4546:9:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4513:42:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5958, "nodeType": "ExpressionStatement", "src": "4513:42:41" }, { "expression": { "argumentTypes": null, "id": 5965, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5959, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4561:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5962, "indexExpression": { "argumentTypes": null, "id": 5960, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4573:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4561:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5963, "indexExpression": { "argumentTypes": null, "id": 5961, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5934, "src": "4580:14:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4561:34:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 5964, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4598:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "4561:38:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5966, "nodeType": "ExpressionStatement", "src": "4561:38:41" }, { "expression": { "argumentTypes": null, "id": 5971, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "--", "prefix": false, "src": "4960:27:41", "subExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5967, "name": "ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5741, "src": "4960:11:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 5969, "indexExpression": { "argumentTypes": null, "id": 5968, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5915, "src": "4972:5:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4960:18:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 5970, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4960:25:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5972, "nodeType": "ExpressionStatement", "src": "4960:27:41" }, { "expression": { "argumentTypes": null, "id": 5977, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5973, "name": "ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5745, "src": "4993:16:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 5975, "indexExpression": { "argumentTypes": null, "id": 5974, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5917, "src": "5010:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4993:26:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 5976, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5022:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "4993:30:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5978, "nodeType": "ExpressionStatement", "src": "4993:30:41" }, { "expression": { "argumentTypes": null, "id": 5983, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5979, "name": "ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5745, "src": "5029:16:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 5981, "indexExpression": { "argumentTypes": null, "id": 5980, "name": "lastToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5944, "src": "5046:9:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5029:27:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5982, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5928, "src": "5059:10:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5029:40:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5984, "nodeType": "ExpressionStatement", "src": "5029:40:41" } ] }, "documentation": "@dev Internal function to remove a token ID from the list of a given address\n@param _from address representing the previous owner of the given token ID\n@param _tokenId uint256 ID of the token to be removed from the tokens list of the given address", "id": 5986, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "removeTokenFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 5918, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5915, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4243:13:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5914, "name": "address", "nodeType": "ElementaryTypeName", "src": "4243:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5917, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5986, "src": "4258:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5916, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4258:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4242:33:41" }, "payable": false, "returnParameters": { "id": 5919, "nodeType": "ParameterList", "parameters": [], "src": "4285:0:41" }, "scope": 6094, "src": "4218:856:41", "stateMutability": "nonpayable", "superFunction": 5668, "visibility": "internal" }, { "body": { "id": 6013, "nodeType": "Block", "src": "5395:117:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5996, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5988, "src": "5413:3:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5997, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5990, "src": "5418:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 5993, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6191, "src": "5401:5:41", "typeDescriptions": { "typeIdentifier": "t_super$_ERC721Token_$6094", "typeString": "contract super ERC721Token" } }, "id": 5995, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_mint", "nodeType": "MemberAccess", "referencedDeclaration": 5531, "src": "5401:11:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5998, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5401:26:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5999, "nodeType": "ExpressionStatement", "src": "5401:26:41" }, { "expression": { "argumentTypes": null, "id": 6005, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6000, "name": "allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5752, "src": "5434:14:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 6002, "indexExpression": { "argumentTypes": null, "id": 6001, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5990, "src": "5449:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5434:24:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6003, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "5461:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6004, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5461:16:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5434:43:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6006, "nodeType": "ExpressionStatement", "src": "5434:43:41" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6010, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5990, "src": "5498:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 6007, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "5483:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6009, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "push", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5483:14:41", "typeDescriptions": { "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", "typeString": "function (uint256) returns (uint256)" } }, "id": 6011, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5483:24:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6012, "nodeType": "ExpressionStatement", "src": "5483:24:41" } ] }, "documentation": "@dev Internal function to mint a new token\n@dev Reverts if the given token ID already exists\n@param _to address the beneficiary that will own the minted token\n@param _tokenId uint256 ID of the token to be minted by the msg.sender", "id": 6014, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "parameters": { "id": 5991, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5988, "name": "_to", "nodeType": "VariableDeclaration", "scope": 6014, "src": "5355:11:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5987, "name": "address", "nodeType": "ElementaryTypeName", "src": "5355:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5990, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 6014, "src": "5368:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5989, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5368:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5354:31:41" }, "payable": false, "returnParameters": { "id": 5992, "nodeType": "ParameterList", "parameters": [], "src": "5395:0:41" }, "scope": 6094, "src": "5340:172:41", "stateMutability": "nonpayable", "superFunction": 5531, "visibility": "internal" }, { "body": { "id": 6092, "nodeType": "Block", "src": "5807:527:41", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 6024, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6016, "src": "5825:6:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 6025, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "5833:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 6021, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6191, "src": "5813:5:41", "typeDescriptions": { "typeIdentifier": "t_super$_ERC721Token_$6094", "typeString": "contract super ERC721Token" } }, "id": 6023, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_burn", "nodeType": "MemberAccess", "referencedDeclaration": 5557, "src": "5813:11:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 6026, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5813:29:41", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6027, "nodeType": "ExpressionStatement", "src": "5813:29:41" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 6035, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6029, "name": "tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5756, "src": "5890:9:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 6031, "indexExpression": { "argumentTypes": null, "id": 6030, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "5900:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "5890:19:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } ], "id": 6028, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5884:5:41", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes_storage_ptr_$", "typeString": "type(bytes storage pointer)" }, "typeName": "bytes" }, "id": 6032, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5884:26:41", "typeDescriptions": { "typeIdentifier": "t_bytes_storage", "typeString": "bytes storage ref" } }, "id": 6033, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5884:33:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 6034, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5921:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "5884:38:41", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 6042, "nodeType": "IfStatement", "src": "5880:85:41", "trueBody": { "id": 6041, "nodeType": "Block", "src": "5924:41:41", "statements": [ { "expression": { "argumentTypes": null, "id": 6039, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "delete", "prefix": true, "src": "5932:26:41", "subExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6036, "name": "tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5756, "src": "5939:9:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 6038, "indexExpression": { "argumentTypes": null, "id": 6037, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "5949:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "5939:19:41", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6040, "nodeType": "ExpressionStatement", "src": "5932:26:41" } ] } }, { "assignments": [ 6044 ], "declarations": [ { "constant": false, "id": 6044, "name": "tokenIndex", "nodeType": "VariableDeclaration", "scope": 6093, "src": "6001:18:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6043, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6001:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6048, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6045, "name": "allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5752, "src": "6022:14:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 6047, "indexExpression": { "argumentTypes": null, "id": 6046, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "6037:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6022:24:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "6001:45:41" }, { "assignments": [ 6050 ], "declarations": [ { "constant": false, "id": 6050, "name": "lastTokenIndex", "nodeType": "VariableDeclaration", "scope": 6093, "src": "6052:22:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6049, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6052:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6056, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 6054, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6098:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6051, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "6077:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6052, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6077:16:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6053, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 4256, "src": "6077:20:41", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 6055, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6077:23:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "6052:48:41" }, { "assignments": [ 6058 ], "declarations": [ { "constant": false, "id": 6058, "name": "lastToken", "nodeType": "VariableDeclaration", "scope": 6093, "src": "6106:17:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6057, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "6106:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 6062, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6059, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "6126:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6061, "indexExpression": { "argumentTypes": null, "id": 6060, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6050, "src": "6136:14:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "6126:25:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "6106:45:41" }, { "expression": { "argumentTypes": null, "id": 6067, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6063, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "6158:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6065, "indexExpression": { "argumentTypes": null, "id": 6064, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6044, "src": "6168:10:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6158:21:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 6066, "name": "lastToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6058, "src": "6182:9:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6158:33:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6068, "nodeType": "ExpressionStatement", "src": "6158:33:41" }, { "expression": { "argumentTypes": null, "id": 6073, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6069, "name": "allTokens", "nodeType": "Identifier", 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"typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "6197:29:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6074, "nodeType": "ExpressionStatement", "src": "6197:29:41" }, { "expression": { "argumentTypes": null, "id": 6078, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "--", "prefix": false, "src": "6233:18:41", "subExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 6075, "name": "allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5748, "src": "6233:9:41", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 6077, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "6233:16:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6079, "nodeType": "ExpressionStatement", "src": "6233:18:41" }, { "expression": { "argumentTypes": null, "id": 6084, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6080, "name": "allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5752, "src": "6257:14:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 6082, "indexExpression": { "argumentTypes": null, "id": 6081, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6018, "src": "6272:8:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6257:24:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 6083, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6284:1:41", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "6257:28:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6085, "nodeType": "ExpressionStatement", "src": "6257:28:41" }, { "expression": { "argumentTypes": null, "id": 6090, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 6086, "name": "allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5752, "src": "6291:14:41", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 6088, "indexExpression": { "argumentTypes": null, "id": 6087, "name": "lastToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6058, "src": "6306:9:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "6291:25:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 6089, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6044, "src": "6319:10:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "6291:38:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 6091, "nodeType": "ExpressionStatement", "src": "6291:38:41" } ] }, "documentation": "@dev Internal function to burn a specific token\n@dev Reverts if the token does not exist\n@param _owner owner of the token to burn\n@param _tokenId uint256 ID of the token being burned by the msg.sender", "id": 6093, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 6019, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6016, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 6093, "src": "5764:14:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 6015, "name": "address", "nodeType": "ElementaryTypeName", "src": "5764:7:41", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 6018, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 6093, "src": "5780:16:41", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6017, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5780:7:41", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5763:34:41" }, "payable": false, "returnParameters": { "id": 6020, "nodeType": "ParameterList", "parameters": [], "src": "5807:0:41" }, "scope": 6094, "src": "5749:585:41", "stateMutability": "nonpayable", "superFunction": 5557, "visibility": "internal" } ], "scope": 6095, "src": "375:5962:41" } ], "src": "0:6338:41" }, "compiler": { "name": "solc", "version": "0.4.25+commit.59dbf8f1.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.0-beta.1", "updatedAt": "2018-11-01T18:10:50.818Z" }