{ "contractName": "ERC721BasicToken", "abi": [ { "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": "_approved", "type": "address" }, { "indexed": false, "name": "_tokenId", "type": "uint256" } ], "name": "Approval", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "_owner", "type": "address" }, { "indexed": true, "name": "_operator", "type": "address" }, { "indexed": false, "name": "_approved", "type": "bool" } ], "name": "ApprovalForAll", "type": "event" }, { "constant": true, "inputs": [ { "name": "_owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "name": "", "type": "uint256" } ], "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": "_tokenId", "type": "uint256" } ], "name": "exists", "outputs": [ { "name": "", "type": "bool" } ], "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": 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": "_approved", "type": "bool" } ], "name": "setApprovalForAll", "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" }, { "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": false, "inputs": [ { "name": "_from", "type": "address" }, { "name": 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"source": "pragma solidity ^0.4.23;\n\nimport \"./ERC721Basic.sol\";\nimport \"./ERC721Receiver.sol\";\nimport \"../../math/SafeMath.sol\";\nimport \"../../AddressUtils.sol\";\n\n\n/**\n * @title ERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md\n */\ncontract ERC721BasicToken is ERC721Basic {\n using SafeMath for uint256;\n using AddressUtils for address;\n\n // Equals to `bytes4(keccak256(\"onERC721Received(address,uint256,bytes)\"))`\n // which can be also obtained as `ERC721Receiver(0).onERC721Received.selector`\n bytes4 constant ERC721_RECEIVED = 0xf0b9e5ba;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) internal tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) internal tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => uint256) internal ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) internal operatorApprovals;\n\n /**\n * @dev Guarantees msg.sender is owner of the given token\n * @param _tokenId uint256 ID of the token to validate its ownership belongs to msg.sender\n */\n modifier onlyOwnerOf(uint256 _tokenId) {\n require(ownerOf(_tokenId) == msg.sender);\n _;\n }\n\n /**\n * @dev Checks msg.sender can transfer a token, by being owner, approved, or operator\n * @param _tokenId uint256 ID of the token to validate\n */\n modifier canTransfer(uint256 _tokenId) {\n require(isApprovedOrOwner(msg.sender, _tokenId));\n _;\n }\n\n /**\n * @dev Gets the balance of the specified address\n * @param _owner address to query the balance of\n * @return uint256 representing the amount owned by the passed address\n */\n function balanceOf(address _owner) public view returns (uint256) {\n require(_owner != address(0));\n return ownedTokensCount[_owner];\n }\n\n /**\n * @dev Gets the owner of the specified token ID\n * @param _tokenId uint256 ID of the token to query the owner of\n * @return owner address currently marked as the owner of the given token ID\n */\n function ownerOf(uint256 _tokenId) public view returns (address) {\n address owner = tokenOwner[_tokenId];\n require(owner != address(0));\n return owner;\n }\n\n /**\n * @dev Returns whether the specified token exists\n * @param _tokenId uint256 ID of the token to query the existence of\n * @return whether the token exists\n */\n function exists(uint256 _tokenId) public view returns (bool) {\n address owner = tokenOwner[_tokenId];\n return owner != address(0);\n }\n\n /**\n * @dev Approves another address to transfer the given token ID\n * @dev The zero address indicates there is no approved address.\n * @dev There can only be one approved address per token at a given time.\n * @dev Can only be called by the token owner or an approved operator.\n * @param _to address to be approved for the given token ID\n * @param _tokenId uint256 ID of the token to be approved\n */\n function approve(address _to, uint256 _tokenId) public {\n address owner = ownerOf(_tokenId);\n require(_to != owner);\n require(msg.sender == owner || isApprovedForAll(owner, msg.sender));\n\n if (getApproved(_tokenId) != address(0) || _to != address(0)) {\n tokenApprovals[_tokenId] = _to;\n emit Approval(owner, _to, _tokenId);\n }\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * @param _tokenId uint256 ID of the token to query the approval of\n * @return address currently approved for the given token ID\n */\n function getApproved(uint256 _tokenId) public view returns (address) {\n return tokenApprovals[_tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * @dev An operator is allowed to transfer all tokens of the sender on their behalf\n * @param _to operator address to set the approval\n * @param _approved representing the status of the approval to be set\n */\n function setApprovalForAll(address _to, bool _approved) public {\n require(_to != msg.sender);\n operatorApprovals[msg.sender][_to] = _approved;\n emit ApprovalForAll(msg.sender, _to, _approved);\n }\n\n /**\n * @dev Tells whether an operator is approved by a given owner\n * @param _owner owner address which you want to query the approval of\n * @param _operator operator address which you want to query the approval of\n * @return bool whether the given operator is approved by the given owner\n */\n function isApprovedForAll(\n address _owner,\n address _operator\n )\n public\n view\n returns (bool)\n {\n return operatorApprovals[_owner][_operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address\n * @dev Usage of this method is discouraged, use `safeTransferFrom` whenever possible\n * @dev Requires the msg sender to be the owner, approved, or operator\n * @param _from current owner of the token\n * @param _to address to receive the ownership of the given token ID\n * @param _tokenId uint256 ID of the token to be transferred\n */\n function transferFrom(\n address _from,\n address _to,\n uint256 _tokenId\n )\n public\n canTransfer(_tokenId)\n {\n require(_from != address(0));\n require(_to != address(0));\n\n clearApproval(_from, _tokenId);\n removeTokenFrom(_from, _tokenId);\n addTokenTo(_to, _tokenId);\n\n emit Transfer(_from, _to, _tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * @dev If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * @dev Requires the msg sender to be the owner, approved, or operator\n * @param _from current owner of the token\n * @param _to address to receive the ownership of the given token ID\n * @param _tokenId uint256 ID of the token to be transferred\n */\n function safeTransferFrom(\n address _from,\n address _to,\n uint256 _tokenId\n )\n public\n canTransfer(_tokenId)\n {\n // solium-disable-next-line arg-overflow\n safeTransferFrom(_from, _to, _tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * @dev If the target address is a contract, it must implement `onERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onERC721Received(address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * @dev Requires the msg sender to be the owner, approved, or operator\n * @param _from current owner of the token\n * @param _to address to receive the ownership of the given token ID\n * @param _tokenId uint256 ID of the token to be transferred\n * @param _data bytes data to send along with a safe transfer check\n */\n function safeTransferFrom(\n address _from,\n address _to,\n uint256 _tokenId,\n bytes _data\n )\n public\n canTransfer(_tokenId)\n {\n transferFrom(_from, _to, _tokenId);\n // solium-disable-next-line arg-overflow\n require(checkAndCallSafeTransfer(_from, _to, _tokenId, _data));\n }\n\n /**\n * @dev Returns whether the given spender can transfer a given token ID\n * @param _spender address of the spender to query\n * @param _tokenId uint256 ID of the token to be transferred\n * @return bool whether the msg.sender is approved for the given token ID,\n * is an operator of the owner, or is the owner of the token\n */\n function isApprovedOrOwner(\n address _spender,\n uint256 _tokenId\n )\n internal\n view\n returns (bool)\n {\n address owner = ownerOf(_tokenId);\n // Disable solium check because of\n // https://github.com/duaraghav8/Solium/issues/175\n // solium-disable-next-line operator-whitespace\n return (\n _spender == owner ||\n getApproved(_tokenId) == _spender ||\n isApprovedForAll(owner, _spender)\n );\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 The address 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 require(_to != address(0));\n addTokenTo(_to, _tokenId);\n emit Transfer(address(0), _to, _tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token\n * @dev Reverts if the token does not exist\n * @param _tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address _owner, uint256 _tokenId) internal {\n clearApproval(_owner, _tokenId);\n removeTokenFrom(_owner, _tokenId);\n emit Transfer(_owner, address(0), _tokenId);\n }\n\n /**\n * @dev Internal function to clear current approval of a given token ID\n * @dev Reverts if the given address is not indeed the owner of the token\n * @param _owner owner of the token\n * @param _tokenId uint256 ID of the token to be transferred\n */\n function clearApproval(address _owner, uint256 _tokenId) internal {\n require(ownerOf(_tokenId) == _owner);\n if (tokenApprovals[_tokenId] != address(0)) {\n tokenApprovals[_tokenId] = address(0);\n emit Approval(_owner, address(0), _tokenId);\n }\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 require(tokenOwner[_tokenId] == address(0));\n tokenOwner[_tokenId] = _to;\n ownedTokensCount[_to] = ownedTokensCount[_to].add(1);\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 require(ownerOf(_tokenId) == _from);\n ownedTokensCount[_from] = ownedTokensCount[_from].sub(1);\n tokenOwner[_tokenId] = address(0);\n }\n\n /**\n * @dev Internal function to invoke `onERC721Received` on a target address\n * @dev The call is not executed if the target address is not a contract\n * @param _from address representing the previous owner of the given token ID\n * @param _to target address that will receive the tokens\n * @param _tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return whether the call correctly returned the expected magic value\n */\n function checkAndCallSafeTransfer(\n address _from,\n address _to,\n uint256 _tokenId,\n bytes _data\n )\n internal\n returns (bool)\n {\n if (!_to.isContract()) {\n return true;\n }\n bytes4 retval = ERC721Receiver(_to).onERC721Received(\n _from, _tokenId, _data);\n return (retval == ERC721_RECEIVED);\n }\n}\n", "sourcePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721BasicToken.sol", "ast": { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721BasicToken.sol", "exportedSymbols": { "ERC721BasicToken": [ 5707 ] }, "id": 5708, "nodeType": "SourceUnit", "nodes": [ { "id": 5125, "literals": [ "solidity", "^", "0.4", ".23" ], "nodeType": "PragmaDirective", "src": "0:24:39" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721Basic.sol", "file": "./ERC721Basic.sol", "id": 5126, "nodeType": "ImportDirective", "scope": 5708, "sourceUnit": 5124, "src": "26:27:39", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721Receiver.sol", "file": "./ERC721Receiver.sol", "id": 5127, "nodeType": "ImportDirective", "scope": 5708, "sourceUnit": 5725, "src": "54:30:39", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/math/SafeMath.sol", "file": "../../math/SafeMath.sol", "id": 5128, "nodeType": "ImportDirective", "scope": 5708, "sourceUnit": 4282, "src": "85:33:39", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/AddressUtils.sol", "file": "../../AddressUtils.sol", "id": 5129, "nodeType": "ImportDirective", "scope": 5708, "sourceUnit": 4128, "src": "119:32:39", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 5130, "name": "ERC721Basic", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5123, "src": "330:11:39", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC721Basic_$5123", "typeString": "contract ERC721Basic" } }, "id": 5131, "nodeType": "InheritanceSpecifier", "src": "330:11:39" } ], "contractDependencies": [ 5123 ], "contractKind": "contract", "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md", "fullyImplemented": true, "id": 5707, "linearizedBaseContracts": [ 5707, 5123 ], "name": "ERC721BasicToken", "nodeType": "ContractDefinition", "nodes": [ { "id": 5134, "libraryName": { "contractScope": null, "id": 5132, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4281, "src": "352:8:39", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$4281", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "346:27:39", "typeName": { "id": 5133, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "365:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "id": 5137, "libraryName": { "contractScope": null, "id": 5135, "name": "AddressUtils", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4127, "src": "382:12:39", "typeDescriptions": { "typeIdentifier": "t_contract$_AddressUtils_$4127", "typeString": "library AddressUtils" } }, "nodeType": "UsingForDirective", "src": "376:31:39", "typeName": { "id": 5136, "name": "address", "nodeType": "ElementaryTypeName", "src": "399:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, { "constant": true, "id": 5140, "name": "ERC721_RECEIVED", "nodeType": "VariableDeclaration", "scope": 5707, "src": "570:44:39", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 5138, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "570:6:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": { "argumentTypes": null, "hexValue": "30786630623965356261", "id": 5139, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "604:10:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4038714810_by_1", "typeString": "int_const 4038714810" }, "value": "0xf0b9e5ba" }, "visibility": "internal" }, { "constant": false, "id": 5144, "name": "tokenOwner", "nodeType": "VariableDeclaration", "scope": 5707, "src": "655:48:39", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "typeName": { "id": 5143, "keyType": { "id": 5141, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "664:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "655:28:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "valueType": { "id": 5142, "name": "address", "nodeType": "ElementaryTypeName", "src": "675:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5148, "name": "tokenApprovals", "nodeType": "VariableDeclaration", "scope": 5707, "src": "755:52:39", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "typeName": { "id": 5147, "keyType": { "id": 5145, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "764:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "755:28:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "valueType": { "id": 5146, "name": "address", "nodeType": "ElementaryTypeName", "src": "775:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5152, "name": "ownedTokensCount", "nodeType": "VariableDeclaration", "scope": 5707, "src": "861:54:39", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "typeName": { "id": 5151, "keyType": { "id": 5149, "name": "address", "nodeType": "ElementaryTypeName", "src": "870:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "861:28:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 5150, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "881:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5158, "name": "operatorApprovals", "nodeType": "VariableDeclaration", "scope": 5707, "src": "966:73:39", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" }, "typeName": { "id": 5157, "keyType": { "id": 5153, "name": "address", "nodeType": "ElementaryTypeName", "src": "975:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "966:46:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" }, "valueType": { "id": 5156, "keyType": { "id": 5154, "name": "address", "nodeType": "ElementaryTypeName", "src": "995:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "986:25:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "valueType": { "id": 5155, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1006:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } } }, "value": null, "visibility": "internal" }, { "body": { "id": 5172, "nodeType": "Block", "src": "1248:58:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5168, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5164, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5160, "src": "1270:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5163, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 5231 ], "referencedDeclaration": 5231, "src": "1262:7:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5165, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1262:17:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5166, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "1283:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5167, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1283:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "1262:31:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5162, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "1254:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5169, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1254:40:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5170, "nodeType": "ExpressionStatement", "src": "1254:40:39" }, { "id": 5171, "nodeType": "PlaceholderStatement", "src": "1300:1:39" } ] }, "documentation": "@dev Guarantees msg.sender is owner of the given token\n@param _tokenId uint256 ID of the token to validate its ownership belongs to msg.sender", "id": 5173, "name": "onlyOwnerOf", "nodeType": "ModifierDefinition", "parameters": { "id": 5161, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5160, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5173, "src": "1230:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5159, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1230:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1229:18:39" }, "src": "1209:97:39", "visibility": "internal" }, { "body": { "id": 5186, "nodeType": "Block", "src": "1506:66:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5179, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "1538:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5180, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1538:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5181, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5175, "src": "1550:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5178, "name": "isApprovedOrOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5502, "src": "1520:17:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) view returns (bool)" } }, "id": 5182, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1520:39:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5177, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "1512:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5183, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1512:48:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5184, "nodeType": "ExpressionStatement", "src": "1512:48:39" }, { "id": 5185, "nodeType": "PlaceholderStatement", "src": "1566:1:39" } ] }, "documentation": "@dev Checks msg.sender can transfer a token, by being owner, approved, or operator\n@param _tokenId uint256 ID of the token to validate", "id": 5187, "name": "canTransfer", "nodeType": "ModifierDefinition", "parameters": { "id": 5176, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5175, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5187, "src": "1488:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5174, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1488:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1487:18:39" }, "src": "1467:105:39", "visibility": "internal" }, { "body": { "id": 5206, "nodeType": "Block", "src": "1829:77:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5199, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5195, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5189, "src": "1843:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5197, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1861:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5196, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "1853:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5198, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1853:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "1843:20:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5194, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "1835:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5200, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1835:29:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5201, "nodeType": "ExpressionStatement", "src": "1835:29:39" }, { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5202, "name": "ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5152, "src": "1877:16:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 5204, "indexExpression": { "argumentTypes": null, "id": 5203, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5189, "src": "1894:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1877:24:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 5193, "id": 5205, "nodeType": "Return", "src": "1870:31:39" } ] }, "documentation": "@dev Gets the balance of the specified address\n@param _owner address to query the balance of\n@return uint256 representing the amount owned by the passed address", "id": 5207, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "balanceOf", "nodeType": "FunctionDefinition", "parameters": { "id": 5190, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5189, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 5207, "src": "1783:14:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5188, "name": "address", "nodeType": "ElementaryTypeName", "src": "1783:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1782:16:39" }, "payable": false, "returnParameters": { "id": 5193, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5192, "name": "", "nodeType": "VariableDeclaration", "scope": 5207, "src": "1820:7:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5191, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1820:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1819:9:39" }, "scope": 5707, "src": "1764:142:39", "stateMutability": "view", "superFunction": 5049, "visibility": "public" }, { "body": { "id": 5230, "nodeType": "Block", "src": "2184:99:39", "statements": [ { "assignments": [ 5215 ], "declarations": [ { "constant": false, "id": 5215, "name": "owner", "nodeType": "VariableDeclaration", "scope": 5231, "src": "2190:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5214, "name": "address", "nodeType": "ElementaryTypeName", "src": "2190:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 5219, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5216, "name": "tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5144, "src": "2206:10:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5218, "indexExpression": { "argumentTypes": null, "id": 5217, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5209, "src": "2217:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2206:20:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "2190:36:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5225, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5221, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5215, "src": "2240:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5223, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2257:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5222, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2249:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5224, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2249:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "2240:19:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5220, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "2232:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5226, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2232:28:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5227, "nodeType": "ExpressionStatement", "src": "2232:28:39" }, { "expression": { "argumentTypes": null, "id": 5228, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5215, "src": "2273:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "functionReturnParameters": 5213, "id": 5229, "nodeType": "Return", "src": "2266:12:39" } ] }, "documentation": "@dev Gets the owner of the specified token ID\n@param _tokenId uint256 ID of the token to query the owner of\n@return owner address currently marked as the owner of the given token ID", "id": 5231, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "ownerOf", "nodeType": "FunctionDefinition", "parameters": { "id": 5210, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5209, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5231, "src": "2136:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5208, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2136:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2135:18:39" }, "payable": false, "returnParameters": { "id": 5213, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5212, "name": "", "nodeType": "VariableDeclaration", "scope": 5231, "src": "2175:7:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5211, "name": "address", "nodeType": "ElementaryTypeName", "src": "2175:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "2174:9:39" }, "scope": 5707, "src": "2119:164:39", "stateMutability": "view", "superFunction": 5056, "visibility": "public" }, { "body": { "id": 5250, "nodeType": "Block", "src": "2522:79:39", "statements": [ { "assignments": [ 5239 ], "declarations": [ { "constant": false, "id": 5239, "name": "owner", "nodeType": "VariableDeclaration", "scope": 5251, "src": "2528:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5238, "name": "address", "nodeType": "ElementaryTypeName", "src": "2528:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 5243, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5240, "name": "tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5144, "src": "2544:10:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5242, "indexExpression": { "argumentTypes": null, "id": 5241, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5233, "src": "2555:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2544:20:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "2528:36:39" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5248, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5244, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5239, "src": "2577:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5246, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2594:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5245, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2586:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5247, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2586:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "2577:19:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 5237, "id": 5249, "nodeType": "Return", "src": "2570:26:39" } ] }, "documentation": "@dev Returns whether the specified token exists\n@param _tokenId uint256 ID of the token to query the existence of\n@return whether the token exists", "id": 5251, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "exists", "nodeType": "FunctionDefinition", "parameters": { "id": 5234, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5233, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5251, "src": "2477:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5232, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2477:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2476:18:39" }, "payable": false, "returnParameters": { "id": 5237, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5236, "name": "", "nodeType": "VariableDeclaration", "scope": 5251, "src": "2516:4:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5235, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2516:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "2515:6:39" }, "scope": 5707, "src": "2461:140:39", "stateMutability": "view", "superFunction": 5063, "visibility": "public" }, { "body": { "id": 5310, "nodeType": "Block", "src": "3076:300:39", "statements": [ { "assignments": [ 5259 ], "declarations": [ { "constant": false, "id": 5259, "name": "owner", "nodeType": "VariableDeclaration", "scope": 5311, "src": "3082:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5258, "name": "address", "nodeType": "ElementaryTypeName", "src": "3082:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 5263, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5261, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5255, "src": "3106:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5260, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 5231 ], "referencedDeclaration": 5231, "src": "3098:7:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5262, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3098:17:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "3082:33:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5267, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5265, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5253, "src": "3129:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "id": 5266, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5259, "src": "3136:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3129:12:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5264, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "3121:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5268, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3121:21:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5269, "nodeType": "ExpressionStatement", "src": "3121:21:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 5280, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5274, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5271, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "3156:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5272, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3156:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5273, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5259, "src": "3170:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3156:19:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5276, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5259, "src": "3196:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5277, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "3203:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5278, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3203:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 5275, "name": "isApprovedForAll", "nodeType": "Identifier", "overloadedDeclarations": [ 5370 ], "referencedDeclaration": 5370, "src": "3179:16:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_bool_$", "typeString": "function (address,address) view returns (bool)" } }, "id": 5279, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3179:35:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "3156:58:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5270, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "3148:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5281, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3148:67:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5282, "nodeType": "ExpressionStatement", "src": "3148:67:39" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 5295, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5289, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5284, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5255, "src": "3238:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5283, "name": "getApproved", "nodeType": "Identifier", "overloadedDeclarations": [ 5323 ], "referencedDeclaration": 5323, "src": "3226:11:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5285, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3226:21:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5287, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3259:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5286, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3251:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5288, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3251:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3226:35:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5294, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5290, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5253, "src": "3265:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5292, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3280:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5291, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3272:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5293, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3272:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3265:17:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "3226:56:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 5309, "nodeType": "IfStatement", "src": "3222:150:39", "trueBody": { "id": 5308, "nodeType": "Block", "src": "3284:88:39", "statements": [ { "expression": { "argumentTypes": null, "id": 5300, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5296, "name": "tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5148, "src": "3292:14:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5298, "indexExpression": { "argumentTypes": null, "id": 5297, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5255, "src": "3307:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "3292:24:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5299, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5253, "src": "3319:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3292:30:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5301, "nodeType": "ExpressionStatement", "src": "3292:30:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5303, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5259, "src": "3344:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5304, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5253, "src": "3351:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5305, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5255, "src": "3356:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5302, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5034, "src": "3335:8:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5306, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3335:30:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5307, "nodeType": "EmitStatement", "src": "3330:35:39" } ] } } ] }, "documentation": "@dev Approves another address to transfer the given token ID\n@dev The zero address indicates there is no approved address.\n@dev There can only be one approved address per token at a given time.\n@dev Can only be called by the token owner or an approved operator.\n@param _to address to be approved for the given token ID\n@param _tokenId uint256 ID of the token to be approved", "id": 5311, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "parameters": { "id": 5256, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5253, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5311, "src": "3038:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5252, "name": "address", "nodeType": "ElementaryTypeName", "src": "3038:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5255, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5311, "src": "3051:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5254, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3051:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3037:31:39" }, "payable": false, "returnParameters": { "id": 5257, "nodeType": "ParameterList", "parameters": [], "src": "3076:0:39" }, "scope": 5707, "src": "3021:355:39", "stateMutability": "nonpayable", "superFunction": 5070, "visibility": "public" }, { "body": { "id": 5322, "nodeType": "Block", "src": "3672:42:39", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5318, "name": "tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5148, "src": "3685:14:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5320, "indexExpression": { "argumentTypes": null, "id": 5319, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5313, "src": "3700:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3685:24:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "functionReturnParameters": 5317, "id": 5321, "nodeType": "Return", "src": "3678:31:39" } ] }, "documentation": "@dev Gets the approved address for a token ID, or zero if no address set\n@param _tokenId uint256 ID of the token to query the approval of\n@return address currently approved for the given token ID", "id": 5323, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "getApproved", "nodeType": "FunctionDefinition", "parameters": { "id": 5314, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5313, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5323, "src": "3624:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5312, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3624:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3623:18:39" }, "payable": false, "returnParameters": { "id": 5317, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5316, "name": "", "nodeType": "VariableDeclaration", "scope": 5323, "src": "3663:7:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5315, "name": "address", "nodeType": "ElementaryTypeName", "src": "3663:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "3662:9:39" }, "scope": 5707, "src": "3603:111:39", "stateMutability": "view", "superFunction": 5077, "visibility": "public" }, { "body": { "id": 5353, "nodeType": "Block", "src": "4062:142:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5334, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5331, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5325, "src": "4076:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5332, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "4083:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5333, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4083:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "4076:17:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5330, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "4068:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5335, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4068:26:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5336, "nodeType": "ExpressionStatement", "src": "4068:26:39" }, { "expression": { "argumentTypes": null, "id": 5344, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5337, "name": "operatorApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5158, "src": "4100:17:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" } }, "id": 5341, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5338, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "4118:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5339, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4118:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4100:29:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 5342, "indexExpression": { "argumentTypes": null, "id": 5340, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5325, "src": "4130:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4100:34:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5343, "name": "_approved", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5327, "src": "4137:9:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "4100:46:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 5345, "nodeType": "ExpressionStatement", "src": "4100:46:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5347, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "4172:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5348, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4172:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5349, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5325, "src": "4184:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5350, "name": "_approved", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5327, "src": "4189:9:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5346, "name": "ApprovalForAll", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5042, "src": "4157:14:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_bool_$returns$__$", "typeString": "function (address,address,bool)" } }, "id": 5351, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4157:42:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5352, "nodeType": "EmitStatement", "src": "4152:47:39" } ] }, "documentation": "@dev Sets or unsets the approval of a given operator\n@dev An operator is allowed to transfer all tokens of the sender on their behalf\n@param _to operator address to set the approval\n@param _approved representing the status of the approval to be set", "id": 5354, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "setApprovalForAll", "nodeType": "FunctionDefinition", "parameters": { "id": 5328, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5325, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5354, "src": "4026:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5324, "name": "address", "nodeType": "ElementaryTypeName", "src": "4026:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5327, "name": "_approved", "nodeType": "VariableDeclaration", "scope": 5354, "src": "4039:14:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5326, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4039:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4025:29:39" }, "payable": false, "returnParameters": { "id": 5329, "nodeType": "ParameterList", "parameters": [], "src": "4062:0:39" }, "scope": 5707, "src": "3999:205:39", "stateMutability": "nonpayable", "superFunction": 5084, "visibility": "public" }, { "body": { "id": 5369, "nodeType": "Block", "src": "4627:54:39", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5363, "name": "operatorApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5158, "src": "4640:17:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" } }, "id": 5365, "indexExpression": { "argumentTypes": null, "id": 5364, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5356, "src": "4658:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4640:25:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 5367, "indexExpression": { "argumentTypes": null, "id": 5366, "name": "_operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5358, "src": "4666:9:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4640:36:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 5362, "id": 5368, "nodeType": "Return", "src": "4633:43:39" } ] }, "documentation": "@dev Tells whether an operator is approved by a given owner\n@param _owner owner address which you want to query the approval of\n@param _operator operator address which you want to query the approval of\n@return bool whether the given operator is approved by the given owner", "id": 5370, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "isApprovedForAll", "nodeType": "FunctionDefinition", "parameters": { "id": 5359, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5356, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 5370, "src": "4544:14:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5355, "name": "address", "nodeType": "ElementaryTypeName", "src": "4544:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5358, "name": "_operator", "nodeType": "VariableDeclaration", "scope": 5370, "src": "4564:17:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5357, "name": "address", "nodeType": "ElementaryTypeName", "src": "4564:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "4538:47:39" }, "payable": false, "returnParameters": { "id": 5362, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5361, "name": "", "nodeType": "VariableDeclaration", "scope": 5370, "src": "4619:4:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5360, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4619:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4618:6:39" }, "scope": 5707, "src": "4513:168:39", "stateMutability": "view", "superFunction": 5093, "visibility": "public" }, { "body": { "id": 5419, "nodeType": "Block", "src": "5232:219:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5387, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5383, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5372, "src": "5246:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5385, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5263:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5384, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5255:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5386, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5255:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "5246:19:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5382, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "5238:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5388, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5238:28:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5389, "nodeType": "ExpressionStatement", "src": "5238:28:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5395, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5391, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5374, "src": "5280:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5393, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", 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], "id": 5408, "name": "addTokenTo", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5633, "src": "5379:10:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5411, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5379:25:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5412, "nodeType": "ExpressionStatement", "src": "5379:25:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5414, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5372, "src": "5425:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5415, "name": "_to", "nodeType": 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false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5416:30:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5418, "nodeType": "EmitStatement", "src": "5411:35:39" } ] }, "documentation": "@dev Transfers the ownership of a given token ID to another address\n@dev Usage of this method is discouraged, use `safeTransferFrom` whenever possible\n@dev Requires the msg sender to be the owner, approved, or operator\n@param _from current owner of the token\n@param _to address to receive the ownership of the given token ID\n@param _tokenId uint256 ID of the token to be transferred", "id": 5420, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [ { "arguments": [ { "argumentTypes": null, "id": 5379, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5376, "src": "5220:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 5380, "modifierName": { "argumentTypes": null, "id": 5378, "name": "canTransfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5187, "src": "5208:11:39", "typeDescriptions": { "typeIdentifier": "t_modifier$_t_uint256_$", "typeString": "modifier (uint256)" } }, "nodeType": "ModifierInvocation", "src": "5208:21:39" } ], "name": "transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 5377, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5372, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5420, "src": "5136:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5371, "name": "address", "nodeType": "ElementaryTypeName", "src": "5136:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": 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"src": "5130:62:39" }, "payable": false, "returnParameters": { "id": 5381, "nodeType": "ParameterList", "parameters": [], "src": "5232:0:39" }, "scope": 5707, "src": "5109:342:39", "stateMutability": "nonpayable", "superFunction": 5102, "visibility": "public" }, { "body": { "id": 5439, "nodeType": "Block", "src": "6194:98:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5433, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5422, "src": "6262:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5434, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5424, "src": "6269:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5435, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5426, "src": "6274:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "", "id": 5436, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "6284:2:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, "value": "" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" } ], "id": 5432, "name": "safeTransferFrom", "nodeType": "Identifier", "overloadedDeclarations": [ 5440, 5470 ], "referencedDeclaration": 5470, "src": "6245:16:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,uint256,bytes memory)" } }, "id": 5437, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6245:42:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5438, "nodeType": "ExpressionStatement", "src": "6245:42:39" } ] }, "documentation": "@dev Safely transfers the ownership of a given token ID to another address\n@dev If the target address is a contract, it must implement `onERC721Received`,\n which is called upon a safe transfer, and return the magic value\n `bytes4(keccak256(\"onERC721Received(address,uint256,bytes)\"))`; otherwise,\n the transfer is reverted.\n@dev Requires the msg sender to be the owner, approved, or operator\n@param _from current owner of the token\n@param _to address to receive the ownership of the given token ID\n@param _tokenId uint256 ID of the token to be transferred", "id": 5440, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [ { "arguments": [ { "argumentTypes": null, "id": 5429, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5426, "src": "6182:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 5430, "modifierName": { "argumentTypes": null, "id": 5428, "name": "canTransfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5187, "src": "6170:11:39", "typeDescriptions": { "typeIdentifier": "t_modifier$_t_uint256_$", "typeString": "modifier (uint256)" } }, "nodeType": "ModifierInvocation", "src": "6170:21:39" } ], "name": "safeTransferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 5427, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5422, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5440, "src": "6098:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5421, "name": "address", "nodeType": "ElementaryTypeName", "src": "6098:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5424, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5440, "src": "6117:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5423, "name": "address", "nodeType": "ElementaryTypeName", "src": "6117:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": 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"src": "7129:12:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5458, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7129:34:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5459, "nodeType": "ExpressionStatement", "src": "7129:34:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5462, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5442, "src": "7247:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5463, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], 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"Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5706, "src": "7222:24:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bool_$", "typeString": "function (address,address,uint256,bytes memory) returns (bool)" } }, "id": 5466, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7222:53:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5460, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "7214:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5467, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7214:62:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5468, "nodeType": "ExpressionStatement", "src": "7214:62:39" } ] }, "documentation": "@dev Safely transfers the ownership of a given token ID to another address\n@dev If the target address is a contract, it must implement `onERC721Received`,\n which is called upon a safe transfer, and return the magic value\n `bytes4(keccak256(\"onERC721Received(address,uint256,bytes)\"))`; otherwise,\n the transfer is reverted.\n@dev Requires the msg sender to be the owner, approved, or operator\n@param _from current owner of the token\n@param _to address to receive the ownership of the given token ID\n@param _tokenId uint256 ID of the token to be transferred\n@param _data bytes data to send along with a safe transfer check", "id": 5470, "implemented": true, 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"default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5441, "name": "address", "nodeType": "ElementaryTypeName", "src": "7010:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5444, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5470, "src": "7029:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5443, "name": "address", "nodeType": "ElementaryTypeName", "src": "7029:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5446, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5470, "src": "7046:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5445, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7046:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5448, "name": "_data", "nodeType": "VariableDeclaration", "scope": 5470, "src": "7068:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 5447, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "7068:5:39", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "7004:79:39" }, "payable": false, "returnParameters": { "id": 5453, "nodeType": "ParameterList", "parameters": [], "src": "7123:0:39" }, "scope": 5707, "src": "6979:302:39", "stateMutability": "nonpayable", "superFunction": 5122, "visibility": "public" }, { "body": { "id": 5501, "nodeType": "Block", "src": "7746:320:39", "statements": [ { "assignments": [ 5480 ], "declarations": [ { "constant": false, "id": 5480, "name": "owner", "nodeType": "VariableDeclaration", "scope": 5502, "src": "7752:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5479, "name": "address", "nodeType": "ElementaryTypeName", "src": "7752:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 5484, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5482, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5474, "src": "7776:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5481, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 5231 ], "referencedDeclaration": 5231, "src": "7768:7:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5483, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7768:17:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "7752:33:39" }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 5498, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 5493, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5487, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5485, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5472, "src": "7952:8:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5486, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5480, "src": "7964:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "7952:17:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5492, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5489, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5474, "src": "7991:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5488, "name": "getApproved", "nodeType": "Identifier", "overloadedDeclarations": [ 5323 ], "referencedDeclaration": 5323, "src": "7979:11:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5490, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7979:21:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5491, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5472, "src": "8004:8:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "7979:33:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "7952:60:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5495, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5480, "src": "8039:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5496, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5472, "src": "8046:8:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 5494, "name": "isApprovedForAll", "nodeType": "Identifier", "overloadedDeclarations": [ 5370 ], "referencedDeclaration": 5370, "src": "8022:16:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_bool_$", "typeString": "function (address,address) view returns (bool)" } }, "id": 5497, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8022:33:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "7952:103:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 5499, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7944:117:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 5478, "id": 5500, "nodeType": "Return", "src": "7937:124:39" } ] }, "documentation": "@dev Returns whether the given spender can transfer a given token ID\n@param _spender address of the spender to query\n@param _tokenId uint256 ID of the token to be transferred\n@return bool whether the msg.sender is approved for the given token ID,\n is an operator of the owner, or is the owner of the token", "id": 5502, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "isApprovedOrOwner", "nodeType": "FunctionDefinition", "parameters": { "id": 5475, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5472, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 5502, "src": "7660:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5471, "name": "address", "nodeType": "ElementaryTypeName", "src": "7660:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5474, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5502, "src": "7682:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5473, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7682:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "7654:48:39" }, "payable": false, "returnParameters": { "id": 5478, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5477, "name": "", "nodeType": "VariableDeclaration", "scope": 5502, "src": "7738:4:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5476, "name": "bool", "nodeType": "ElementaryTypeName", "src": "7738:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "7737:6:39" }, "scope": 5707, "src": "7628:438:39", "stateMutability": "view", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5530, "nodeType": "Block", "src": "8375:114:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5514, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5510, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5504, "src": "8389:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5512, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8404:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5511, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8396:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5513, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8396:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "8389:17:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5509, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "8381:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5515, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8381:26:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5516, "nodeType": "ExpressionStatement", "src": "8381:26:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5518, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5504, "src": "8424:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5519, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5506, "src": "8429:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5517, "name": "addTokenTo", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5633, "src": "8413:10:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5520, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8413:25:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5521, "nodeType": "ExpressionStatement", "src": "8413:25:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5524, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8466:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5523, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8458:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5525, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8458:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5526, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5504, "src": "8470:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5527, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5506, "src": "8475:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5522, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5026, "src": "8449:8:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5528, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8449:35:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5529, "nodeType": "EmitStatement", "src": "8444:40:39" } ] }, "documentation": "@dev Internal function to mint a new token\n@dev Reverts if the given token ID already exists\n@param _to The address that will own the minted token\n@param _tokenId uint256 ID of the token to be minted by the msg.sender", "id": 5531, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "parameters": { "id": 5507, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5504, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5531, "src": "8335:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5503, "name": "address", "nodeType": "ElementaryTypeName", "src": "8335:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5506, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5531, "src": "8348:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5505, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8348:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "8334:31:39" }, "payable": false, "returnParameters": { "id": 5508, "nodeType": "ParameterList", "parameters": [], "src": "8375:0:39" }, "scope": 5707, "src": "8320:169:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5556, "nodeType": "Block", "src": "8738:130:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5539, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5533, "src": "8758:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5540, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5535, "src": "8766:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5538, "name": "clearApproval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5598, "src": "8744:13:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5541, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8744:31:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5542, "nodeType": "ExpressionStatement", "src": "8744:31:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5544, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5533, "src": "8797:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5545, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5535, "src": "8805:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5543, "name": "removeTokenFrom", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5668, "src": "8781:15:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5546, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8781:33:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5547, "nodeType": "ExpressionStatement", "src": "8781:33:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5549, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5533, "src": "8834:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5551, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8850:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5550, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8842:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5552, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8842:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5553, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5535, "src": "8854:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5548, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5026, "src": "8825:8:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5554, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8825:38:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5555, "nodeType": "EmitStatement", "src": "8820:43:39" } ] }, "documentation": "@dev Internal function to burn a specific token\n@dev Reverts if the token does not exist\n@param _tokenId uint256 ID of the token being burned by the msg.sender", "id": 5557, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 5536, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5533, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 5557, "src": "8695:14:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5532, "name": "address", "nodeType": "ElementaryTypeName", "src": "8695:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5535, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5557, "src": "8711:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5534, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8711:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "8694:34:39" }, "payable": false, "returnParameters": { "id": 5537, "nodeType": "ParameterList", "parameters": [], "src": "8738:0:39" }, "scope": 5707, "src": "8680:188:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5597, "nodeType": "Block", "src": "9201:199:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5569, "isConstant": false, 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"t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5568, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5559, "src": "9236:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9215:27:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5564, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "9207:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5570, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9207:36:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5571, "nodeType": "ExpressionStatement", "src": "9207:36:39" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5578, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5572, "name": "tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5148, "src": "9253:14:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5574, "indexExpression": { "argumentTypes": null, "id": 5573, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5561, "src": "9268:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "9253:24:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5576, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9289:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5575, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9281:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5577, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9281:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9253:38:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 5596, "nodeType": "IfStatement", "src": "9249:147:39", "trueBody": { "id": 5595, "nodeType": "Block", "src": "9293:103:39", "statements": [ { "expression": { "argumentTypes": null, "id": 5585, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5579, "name": "tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5148, "src": "9301:14:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5581, "indexExpression": { "argumentTypes": null, "id": 5580, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5561, "src": "9316:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "9301:24:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5583, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9336:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5582, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9328:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5584, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9328:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9301:37:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5586, "nodeType": "ExpressionStatement", "src": "9301:37:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5588, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5559, "src": "9360:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5590, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9376:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5589, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9368:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5591, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9368:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5592, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5561, "src": "9380:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5587, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5034, "src": "9351:8:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5593, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9351:38:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5594, "nodeType": "EmitStatement", "src": "9346:43:39" } ] } } ] }, "documentation": "@dev Internal function to clear current approval of a given token ID\n@dev Reverts if the given address is not indeed the owner of the token\n@param _owner owner of the token\n@param _tokenId uint256 ID of the token to be transferred", "id": 5598, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "clearApproval", "nodeType": "FunctionDefinition", "parameters": { "id": 5562, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5559, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 5598, "src": "9158:14:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5558, "name": "address", "nodeType": "ElementaryTypeName", "src": "9158:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5561, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5598, "src": "9174:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5560, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "9174:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "9157:34:39" }, "payable": false, "returnParameters": { "id": 5563, "nodeType": "ParameterList", "parameters": [], "src": "9201:0:39" }, "scope": 5707, "src": "9135:265:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5632, "nodeType": "Block", "src": "9723:144:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5612, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5606, "name": "tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5144, "src": "9737:10:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5608, "indexExpression": { "argumentTypes": null, "id": 5607, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5602, "src": "9748:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "9737:20:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5610, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9769:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5609, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9761:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5611, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9761:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9737:34:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5605, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "9729:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5613, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9729:43:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5614, "nodeType": "ExpressionStatement", "src": "9729:43:39" }, { "expression": { "argumentTypes": null, "id": 5619, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5615, "name": "tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5144, "src": "9778:10:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5617, "indexExpression": { "argumentTypes": null, "id": 5616, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5602, "src": "9789:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "9778:20:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5618, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5600, "src": "9801:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9778:26:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5620, "nodeType": "ExpressionStatement", "src": "9778:26:39" }, { "expression": { "argumentTypes": null, "id": 5630, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5621, "name": "ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5152, "src": "9810:16:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 5623, "indexExpression": { "argumentTypes": null, "id": 5622, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5600, "src": "9827:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "9810:21:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 5628, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9860:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5624, "name": "ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5152, "src": "9834:16:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 5626, "indexExpression": { "argumentTypes": null, "id": 5625, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5600, "src": "9851:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "9834:21:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5627, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 4280, "src": "9834:25:39", "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": 5629, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9834:28:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "9810:52:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5631, "nodeType": "ExpressionStatement", "src": "9810:52:39" } ] }, "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": 5633, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "addTokenTo", "nodeType": "FunctionDefinition", "parameters": { "id": 5603, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5600, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5633, "src": "9683:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5599, "name": "address", "nodeType": "ElementaryTypeName", "src": "9683:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5602, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5633, "src": "9696:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5601, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "9696:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "9682:31:39" }, "payable": false, "returnParameters": { "id": 5604, "nodeType": "ParameterList", "parameters": [], "src": "9723:0:39" }, "scope": 5707, "src": "9663:204:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5667, "nodeType": "Block", "src": "10213:147:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5645, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5642, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5637, "src": "10235:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5641, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 5231 ], "referencedDeclaration": 5231, "src": "10227:7:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5643, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10227:17:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5644, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5635, "src": "10248:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "10227:26:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5640, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "10219:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5646, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10219:35:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5647, "nodeType": "ExpressionStatement", "src": "10219:35:39" }, { "expression": { "argumentTypes": null, "id": 5657, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5648, "name": "ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5152, "src": "10260:16:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 5650, "indexExpression": { "argumentTypes": null, "id": 5649, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5635, "src": "10277:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "10260:23:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 5655, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "10314:1:39", "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, "baseExpression": { "argumentTypes": null, "id": 5651, "name": "ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5152, "src": "10286:16:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 5653, "indexExpression": { "argumentTypes": null, "id": 5652, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5635, "src": "10303:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "10286:23:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5654, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 4256, "src": "10286:27:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 5656, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10286:30:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "10260:56:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5658, "nodeType": "ExpressionStatement", "src": "10260:56:39" }, { "expression": { "argumentTypes": null, "id": 5665, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5659, "name": "tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5144, "src": "10322:10:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5661, "indexExpression": { "argumentTypes": null, "id": 5660, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5637, "src": "10333:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "10322:20:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5663, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "10353:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5662, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "10345:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5664, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10345:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "10322:33:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5666, "nodeType": "ExpressionStatement", "src": "10322:33:39" } ] }, "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": 5668, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "removeTokenFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 5638, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5635, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5668, "src": "10171:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5634, "name": "address", "nodeType": "ElementaryTypeName", "src": "10171:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5637, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5668, "src": "10186:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5636, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "10186:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "10170:33:39" }, "payable": false, "returnParameters": { "id": 5639, "nodeType": "ParameterList", "parameters": [], "src": "10213:0:39" }, "scope": 5707, "src": "10146:214:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5705, "nodeType": "Block", "src": "11018:188:39", "statements": [ { "condition": { "argumentTypes": null, "id": 5684, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "11028:17:39", "subExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 5681, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5672, "src": "11029:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5682, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "isContract", "nodeType": "MemberAccess", "referencedDeclaration": 4126, "src": "11029:14:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$bound_to$_t_address_$", "typeString": "function (address) view returns (bool)" } }, "id": 5683, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11029:16:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 5688, "nodeType": "IfStatement", "src": "11024:49:39", "trueBody": { "id": 5687, "nodeType": "Block", "src": "11047:26:39", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 5685, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "11062:4:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 5680, "id": 5686, "nodeType": "Return", "src": "11055:11:39" } ] } }, { "assignments": [ 5690 ], "declarations": [ { "constant": false, "id": 5690, "name": "retval", "nodeType": "VariableDeclaration", "scope": 5706, "src": "11078:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 5689, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "11078:6:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" } ], "id": 5699, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5695, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5670, "src": "11138:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5696, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5674, "src": "11145:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 5697, "name": "_data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5676, "src": "11155:5:39", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5692, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5672, "src": "11109:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 5691, "name": "ERC721Receiver", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5724, "src": "11094:14:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_ERC721Receiver_$5724_$", "typeString": "type(contract ERC721Receiver)" } }, "id": 5693, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11094:19:39", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC721Receiver_$5724", "typeString": "contract ERC721Receiver" } }, "id": 5694, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "onERC721Received", "nodeType": "MemberAccess", "referencedDeclaration": 5723, "src": "11094:36:39", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$", "typeString": "function (address,uint256,bytes memory) external returns (bytes4)" } }, "id": 5698, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11094:67:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "VariableDeclarationStatement", "src": "11078:83:39" }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "id": 5702, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5700, "name": "retval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5690, "src": "11175:6:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5701, "name": "ERC721_RECEIVED", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5140, "src": "11185:15:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "src": "11175:25:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 5703, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "11174:27:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 5680, "id": 5704, "nodeType": "Return", "src": "11167:34:39" } ] }, "documentation": "@dev Internal function to invoke `onERC721Received` on a target address\n@dev The call is not executed if the target address is not a contract\n@param _from address representing the previous owner of the given token ID\n@param _to target address that will receive the tokens\n@param _tokenId uint256 ID of the token to be transferred\n@param _data bytes optional data to send along with the call\n@return whether the call correctly returned the expected magic value", "id": 5706, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "checkAndCallSafeTransfer", "nodeType": "FunctionDefinition", "parameters": { "id": 5677, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5670, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5706, "src": "10910:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5669, "name": "address", "nodeType": "ElementaryTypeName", "src": "10910:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5672, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5706, "src": "10929:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5671, "name": "address", "nodeType": "ElementaryTypeName", "src": "10929:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5674, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5706, "src": "10946:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5673, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "10946:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5676, "name": "_data", "nodeType": "VariableDeclaration", "scope": 5706, "src": "10968:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 5675, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "10968:5:39", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "10904:79:39" }, "payable": false, "returnParameters": { "id": 5680, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5679, "name": "", "nodeType": "VariableDeclaration", "scope": 5706, "src": "11010:4:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5678, "name": "bool", "nodeType": "ElementaryTypeName", "src": "11010:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "11009:6:39" }, "scope": 5707, "src": "10871:335:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" } ], "scope": 5708, "src": "301:10907:39" } ], "src": "0:11209:39" }, "legacyAST": { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721BasicToken.sol", "exportedSymbols": { "ERC721BasicToken": [ 5707 ] }, "id": 5708, "nodeType": "SourceUnit", "nodes": [ { "id": 5125, "literals": [ "solidity", "^", "0.4", ".23" ], "nodeType": "PragmaDirective", "src": "0:24:39" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721Basic.sol", "file": "./ERC721Basic.sol", "id": 5126, "nodeType": "ImportDirective", "scope": 5708, "sourceUnit": 5124, "src": "26:27:39", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/token/ERC721/ERC721Receiver.sol", "file": "./ERC721Receiver.sol", "id": 5127, "nodeType": "ImportDirective", "scope": 5708, "sourceUnit": 5725, "src": "54:30:39", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/math/SafeMath.sol", "file": "../../math/SafeMath.sol", "id": 5128, "nodeType": "ImportDirective", "scope": 5708, "sourceUnit": 4282, "src": "85:33:39", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/AddressUtils.sol", "file": "../../AddressUtils.sol", "id": 5129, "nodeType": "ImportDirective", "scope": 5708, "sourceUnit": 4128, "src": "119:32:39", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 5130, "name": "ERC721Basic", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5123, "src": "330:11:39", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC721Basic_$5123", "typeString": "contract ERC721Basic" } }, "id": 5131, "nodeType": "InheritanceSpecifier", "src": "330:11:39" } ], "contractDependencies": [ 5123 ], "contractKind": "contract", "documentation": "@title ERC721 Non-Fungible Token Standard basic implementation\n@dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md", "fullyImplemented": true, "id": 5707, "linearizedBaseContracts": [ 5707, 5123 ], "name": "ERC721BasicToken", "nodeType": "ContractDefinition", "nodes": [ { "id": 5134, "libraryName": { "contractScope": null, "id": 5132, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4281, "src": "352:8:39", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$4281", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "346:27:39", "typeName": { "id": 5133, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "365:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "id": 5137, "libraryName": { "contractScope": null, "id": 5135, "name": "AddressUtils", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4127, "src": "382:12:39", "typeDescriptions": { "typeIdentifier": "t_contract$_AddressUtils_$4127", "typeString": "library AddressUtils" } }, "nodeType": "UsingForDirective", "src": "376:31:39", "typeName": { "id": 5136, "name": "address", "nodeType": "ElementaryTypeName", "src": "399:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, { "constant": true, "id": 5140, "name": "ERC721_RECEIVED", "nodeType": "VariableDeclaration", "scope": 5707, "src": "570:44:39", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 5138, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "570:6:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": { "argumentTypes": null, "hexValue": "30786630623965356261", "id": 5139, "isConstant": false, 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"visibility": "internal" } ], "src": "1229:18:39" }, "src": "1209:97:39", "visibility": "internal" }, { "body": { "id": 5186, "nodeType": "Block", "src": "1506:66:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5179, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "1538:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5180, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1538:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5181, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5175, "src": 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6112, 6113 ], "referencedDeclaration": 6112, "src": "2232:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5226, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2232:28:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5227, "nodeType": "ExpressionStatement", "src": "2232:28:39" }, { "expression": { "argumentTypes": null, "id": 5228, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5215, "src": "2273:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "functionReturnParameters": 5213, "id": 5229, "nodeType": "Return", "src": "2266:12:39" } ] }, "documentation": "@dev Gets the owner of the specified token ID\n@param _tokenId uint256 ID of the token to query the owner of\n@return owner address currently marked as the owner of the given token ID", "id": 5231, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "ownerOf", "nodeType": "FunctionDefinition", "parameters": { "id": 5210, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5209, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5231, "src": "2136:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5208, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2136:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2135:18:39" }, "payable": false, "returnParameters": { "id": 5213, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5212, "name": "", "nodeType": "VariableDeclaration", "scope": 5231, "src": "2175:7:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5211, "name": "address", "nodeType": "ElementaryTypeName", "src": "2175:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "2174:9:39" }, "scope": 5707, "src": "2119:164:39", "stateMutability": "view", "superFunction": 5056, "visibility": "public" }, { "body": { "id": 5250, "nodeType": "Block", "src": "2522:79:39", "statements": [ { "assignments": [ 5239 ], "declarations": [ { "constant": false, "id": 5239, "name": "owner", "nodeType": "VariableDeclaration", "scope": 5251, "src": "2528:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5238, "name": "address", "nodeType": "ElementaryTypeName", "src": "2528:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 5243, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5240, "name": "tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5144, "src": "2544:10:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5242, "indexExpression": { "argumentTypes": null, "id": 5241, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5233, "src": "2555:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2544:20:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "2528:36:39" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5248, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5244, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5239, "src": "2577:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5246, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2594:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5245, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2586:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5247, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2586:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "2577:19:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 5237, "id": 5249, "nodeType": "Return", "src": "2570:26:39" } ] }, "documentation": "@dev Returns whether the specified token exists\n@param _tokenId uint256 ID of the token to query the existence of\n@return whether the token exists", "id": 5251, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "exists", "nodeType": "FunctionDefinition", "parameters": { "id": 5234, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5233, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5251, "src": "2477:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5232, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2477:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2476:18:39" }, "payable": false, "returnParameters": { "id": 5237, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5236, "name": "", "nodeType": "VariableDeclaration", "scope": 5251, "src": "2516:4:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5235, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2516:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "2515:6:39" }, "scope": 5707, "src": "2461:140:39", "stateMutability": "view", "superFunction": 5063, "visibility": "public" }, { "body": { "id": 5310, "nodeType": "Block", "src": "3076:300:39", "statements": [ { "assignments": [ 5259 ], "declarations": [ { "constant": false, "id": 5259, "name": "owner", "nodeType": "VariableDeclaration", "scope": 5311, "src": "3082:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5258, "name": "address", "nodeType": "ElementaryTypeName", "src": "3082:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 5263, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5261, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5255, "src": "3106:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5260, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 5231 ], "referencedDeclaration": 5231, "src": "3098:7:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5262, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3098:17:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "3082:33:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5267, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5265, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5253, "src": "3129:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "id": 5266, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5259, "src": "3136:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3129:12:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5264, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "3121:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5268, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3121:21:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5269, "nodeType": "ExpressionStatement", "src": "3121:21:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 5280, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5274, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5271, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "3156:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5272, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3156:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5273, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5259, "src": "3170:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3156:19:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5276, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5259, "src": "3196:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5277, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "3203:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5278, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "3203:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 5275, "name": "isApprovedForAll", "nodeType": "Identifier", "overloadedDeclarations": [ 5370 ], "referencedDeclaration": 5370, "src": "3179:16:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_bool_$", "typeString": "function (address,address) view returns (bool)" } }, "id": 5279, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3179:35:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "3156:58:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5270, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "3148:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5281, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3148:67:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5282, "nodeType": "ExpressionStatement", "src": "3148:67:39" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 5295, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5289, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5284, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5255, "src": "3238:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5283, "name": "getApproved", "nodeType": "Identifier", "overloadedDeclarations": [ 5323 ], "referencedDeclaration": 5323, "src": "3226:11:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5285, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3226:21:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5287, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3259:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5286, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3251:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5288, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3251:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3226:35:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5294, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5290, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5253, "src": "3265:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5292, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3280:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5291, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3272:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5293, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3272:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3265:17:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "3226:56:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 5309, "nodeType": "IfStatement", "src": "3222:150:39", "trueBody": { "id": 5308, "nodeType": "Block", "src": "3284:88:39", "statements": [ { "expression": { "argumentTypes": null, "id": 5300, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5296, "name": "tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5148, "src": "3292:14:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5298, "indexExpression": { "argumentTypes": null, "id": 5297, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5255, "src": "3307:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "3292:24:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5299, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5253, "src": "3319:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "3292:30:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5301, "nodeType": "ExpressionStatement", "src": "3292:30:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5303, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5259, "src": "3344:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5304, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5253, "src": "3351:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5305, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5255, "src": "3356:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5302, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5034, "src": "3335:8:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5306, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3335:30:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5307, "nodeType": "EmitStatement", "src": "3330:35:39" } ] } } ] }, "documentation": "@dev Approves another address to transfer the given token ID\n@dev The zero address indicates there is no approved address.\n@dev There can only be one approved address per token at a given time.\n@dev Can only be called by the token owner or an approved operator.\n@param _to address to be approved for the given token ID\n@param _tokenId uint256 ID of the token to be approved", "id": 5311, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "parameters": { "id": 5256, "nodeType": "ParameterList", "parameters": [ { 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"returnParameters": { "id": 5257, "nodeType": "ParameterList", "parameters": [], "src": "3076:0:39" }, "scope": 5707, "src": "3021:355:39", "stateMutability": "nonpayable", "superFunction": 5070, "visibility": "public" }, { "body": { "id": 5322, "nodeType": "Block", "src": "3672:42:39", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5318, "name": "tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5148, "src": "3685:14:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5320, "indexExpression": { "argumentTypes": null, "id": 5319, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5313, "src": "3700:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "3685:24:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "functionReturnParameters": 5317, "id": 5321, "nodeType": "Return", "src": "3678:31:39" } ] }, "documentation": "@dev Gets the approved address for a token ID, or zero if no address set\n@param _tokenId uint256 ID of the token to query the approval of\n@return address currently approved for the given token ID", "id": 5323, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "getApproved", "nodeType": "FunctionDefinition", "parameters": { "id": 5314, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5313, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5323, "src": "3624:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5312, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3624:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3623:18:39" }, "payable": false, "returnParameters": { "id": 5317, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5316, "name": "", "nodeType": "VariableDeclaration", "scope": 5323, "src": "3663:7:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5315, "name": "address", "nodeType": "ElementaryTypeName", "src": "3663:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "3662:9:39" }, "scope": 5707, "src": "3603:111:39", "stateMutability": "view", "superFunction": 5077, "visibility": "public" }, { "body": { "id": 5353, "nodeType": "Block", "src": "4062:142:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5334, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5331, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5325, "src": "4076:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5332, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "4083:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5333, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4083:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "4076:17:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5330, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "4068:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5335, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4068:26:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5336, "nodeType": "ExpressionStatement", "src": "4068:26:39" }, { "expression": { "argumentTypes": null, "id": 5344, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5337, "name": "operatorApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5158, "src": "4100:17:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" } }, "id": 5341, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5338, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "4118:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5339, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4118:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4100:29:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 5342, "indexExpression": { "argumentTypes": null, "id": 5340, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5325, "src": "4130:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "4100:34:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5343, "name": "_approved", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5327, "src": "4137:9:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "4100:46:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 5345, "nodeType": "ExpressionStatement", "src": "4100:46:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5347, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6109, "src": "4172:3:39", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 5348, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4172:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5349, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5325, "src": "4184:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5350, "name": "_approved", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5327, "src": "4189:9:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5346, "name": "ApprovalForAll", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5042, "src": "4157:14:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_bool_$returns$__$", "typeString": "function (address,address,bool)" } }, "id": 5351, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4157:42:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5352, "nodeType": "EmitStatement", "src": "4152:47:39" } ] }, "documentation": "@dev Sets or unsets the approval of a given operator\n@dev An operator is allowed to transfer all tokens of the sender on their behalf\n@param _to operator address to set the approval\n@param _approved representing the status of the approval to be set", "id": 5354, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "setApprovalForAll", "nodeType": "FunctionDefinition", "parameters": { "id": 5328, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5325, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5354, "src": "4026:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5324, "name": "address", "nodeType": "ElementaryTypeName", "src": "4026:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5327, "name": "_approved", "nodeType": "VariableDeclaration", "scope": 5354, "src": "4039:14:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5326, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4039:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4025:29:39" }, "payable": false, "returnParameters": { "id": 5329, "nodeType": "ParameterList", "parameters": [], "src": "4062:0:39" }, "scope": 5707, "src": "3999:205:39", "stateMutability": "nonpayable", "superFunction": 5084, "visibility": "public" }, { "body": { "id": 5369, "nodeType": "Block", "src": "4627:54:39", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5363, "name": "operatorApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5158, "src": "4640:17:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" } }, "id": 5365, "indexExpression": { "argumentTypes": null, "id": 5364, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5356, "src": "4658:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4640:25:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 5367, "indexExpression": { "argumentTypes": null, "id": 5366, "name": "_operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5358, "src": "4666:9:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "4640:36:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 5362, "id": 5368, "nodeType": "Return", "src": "4633:43:39" } ] }, "documentation": "@dev Tells whether an operator is approved by a given owner\n@param _owner owner address which you want to query the approval of\n@param _operator operator address which you want to query the approval of\n@return bool whether the given operator is approved by the given owner", "id": 5370, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "isApprovedForAll", "nodeType": "FunctionDefinition", "parameters": { "id": 5359, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5356, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 5370, "src": "4544:14:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5355, "name": "address", "nodeType": "ElementaryTypeName", "src": "4544:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5358, "name": "_operator", "nodeType": "VariableDeclaration", "scope": 5370, "src": "4564:17:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5357, "name": "address", "nodeType": "ElementaryTypeName", "src": "4564:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "4538:47:39" }, "payable": false, "returnParameters": { "id": 5362, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5361, "name": "", "nodeType": "VariableDeclaration", "scope": 5370, "src": "4619:4:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5360, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4619:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4618:6:39" }, "scope": 5707, "src": "4513:168:39", "stateMutability": "view", "superFunction": 5093, "visibility": "public" }, { "body": { "id": 5419, "nodeType": "Block", "src": "5232:219:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5387, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5383, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5372, "src": "5246:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5385, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5263:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5384, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5255:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5386, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5255:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "5246:19:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5382, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "5238:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5388, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5238:28:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5389, "nodeType": "ExpressionStatement", "src": "5238:28:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5395, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5391, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5374, "src": "5280:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5393, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5295:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5392, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "5287:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5394, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5287:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "5280:17:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5390, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "5272:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5396, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5272:26:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5397, "nodeType": "ExpressionStatement", "src": "5272:26:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5399, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5372, "src": "5319:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5400, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5376, "src": "5326:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5398, "name": "clearApproval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5598, "src": "5305:13:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5401, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5305:30:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5402, "nodeType": "ExpressionStatement", "src": "5305:30:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5404, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5372, "src": "5357:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5405, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5376, "src": "5364:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5403, "name": "removeTokenFrom", "nodeType": "Identifier", 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"referencedDeclaration": 5376, "src": "5395:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5408, "name": "addTokenTo", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5633, "src": "5379:10:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5411, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5379:25:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5412, "nodeType": "ExpressionStatement", "src": "5379:25:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": 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"id": 5420, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [ { "arguments": [ { "argumentTypes": null, "id": 5379, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5376, "src": "5220:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 5380, "modifierName": { "argumentTypes": null, "id": 5378, "name": "canTransfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5187, "src": "5208:11:39", "typeDescriptions": { "typeIdentifier": "t_modifier$_t_uint256_$", "typeString": "modifier (uint256)" } }, "nodeType": "ModifierInvocation", "src": "5208:21:39" } ], "name": "transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 5377, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5372, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5420, "src": "5136:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5371, "name": "address", "nodeType": "ElementaryTypeName", "src": "5136:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5374, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5420, "src": "5155:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5373, "name": "address", "nodeType": "ElementaryTypeName", "src": "5155:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5376, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5420, "src": "5172:16:39", "stateVariable": false, "storageLocation": "default", 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"typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" } ], "id": 5432, "name": "safeTransferFrom", "nodeType": "Identifier", "overloadedDeclarations": [ 5440, 5470 ], "referencedDeclaration": 5470, "src": "6245:16:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,uint256,bytes memory)" } }, "id": 5437, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "6245:42:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5438, "nodeType": "ExpressionStatement", "src": "6245:42:39" } ] }, "documentation": "@dev Safely transfers the ownership of a given token ID to another address\n@dev If the target address is a contract, it must implement `onERC721Received`,\n which is called upon a safe transfer, and return the magic value\n `bytes4(keccak256(\"onERC721Received(address,uint256,bytes)\"))`; otherwise,\n the transfer is reverted.\n@dev Requires the msg sender to be the owner, approved, or operator\n@param _from current owner of the token\n@param _to address to receive the ownership of the given token ID\n@param _tokenId uint256 ID of the token to be transferred", "id": 5440, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [ { "arguments": [ { "argumentTypes": null, "id": 5429, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5426, "src": "6182:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 5430, "modifierName": { "argumentTypes": null, "id": 5428, "name": "canTransfer", "nodeType": "Identifier", 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"6067:225:39", "stateMutability": "nonpayable", "superFunction": 5111, "visibility": "public" }, { "body": { "id": 5469, "nodeType": "Block", "src": "7123:158:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5455, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5442, "src": "7142:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5456, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5444, "src": "7149:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5457, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5446, "src": "7154:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5454, "name": "transferFrom", "nodeType": "Identifier", "overloadedDeclarations": [ 5420 ], "referencedDeclaration": 5420, "src": "7129:12:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5458, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7129:34:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5459, "nodeType": "ExpressionStatement", "src": "7129:34:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5462, "name": "_from", 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approved, or operator\n@param _from current owner of the token\n@param _to address to receive the ownership of the given token ID\n@param _tokenId uint256 ID of the token to be transferred\n@param _data bytes data to send along with a safe transfer check", "id": 5470, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [ { "arguments": [ { "argumentTypes": null, "id": 5451, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5446, "src": "7111:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "id": 5452, "modifierName": { "argumentTypes": null, "id": 5450, "name": "canTransfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5187, "src": "7099:11:39", "typeDescriptions": { "typeIdentifier": "t_modifier$_t_uint256_$", "typeString": "modifier (uint256)" } }, "nodeType": "ModifierInvocation", "src": "7099:21:39" } ], "name": "safeTransferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 5449, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5442, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5470, "src": "7010:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5441, "name": "address", "nodeType": "ElementaryTypeName", "src": "7010:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5444, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5470, "src": "7029:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5443, "name": "address", "nodeType": "ElementaryTypeName", "src": "7029:7:39", "typeDescriptions": { "typeIdentifier": 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], "id": 5488, "name": "getApproved", "nodeType": "Identifier", "overloadedDeclarations": [ 5323 ], "referencedDeclaration": 5323, "src": "7979:11:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5490, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7979:21:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5491, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5472, "src": "8004:8:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "7979:33:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "7952:60:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5495, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5480, "src": "8039:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5496, "name": "_spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5472, "src": "8046:8:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 5494, "name": "isApprovedForAll", "nodeType": "Identifier", "overloadedDeclarations": [ 5370 ], "referencedDeclaration": 5370, "src": "8022:16:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_bool_$", "typeString": "function (address,address) view returns (bool)" } }, "id": 5497, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8022:33:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "7952:103:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 5499, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "7944:117:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 5478, "id": 5500, "nodeType": "Return", "src": "7937:124:39" } ] }, "documentation": "@dev Returns whether the given spender can transfer a given token ID\n@param _spender address of the spender to query\n@param _tokenId uint256 ID of the token to be transferred\n@return bool whether the msg.sender is approved for the given token ID,\n is an operator of the owner, or is the owner of the token", "id": 5502, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "isApprovedOrOwner", "nodeType": "FunctionDefinition", "parameters": { "id": 5475, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5472, "name": "_spender", "nodeType": "VariableDeclaration", "scope": 5502, "src": "7660:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5471, "name": "address", "nodeType": "ElementaryTypeName", "src": "7660:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5474, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5502, "src": "7682:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5473, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7682:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "7654:48:39" }, "payable": false, "returnParameters": { "id": 5478, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5477, "name": "", "nodeType": "VariableDeclaration", "scope": 5502, "src": "7738:4:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5476, "name": "bool", "nodeType": "ElementaryTypeName", "src": "7738:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "7737:6:39" }, "scope": 5707, "src": "7628:438:39", "stateMutability": "view", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5530, "nodeType": "Block", "src": "8375:114:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5514, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5510, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5504, "src": "8389:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5512, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8404:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5511, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8396:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5513, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8396:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "8389:17:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5509, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "8381:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5515, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8381:26:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5516, "nodeType": "ExpressionStatement", "src": "8381:26:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5518, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5504, "src": "8424:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5519, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5506, "src": "8429:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5517, "name": "addTokenTo", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5633, "src": "8413:10:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5520, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8413:25:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5521, "nodeType": "ExpressionStatement", "src": "8413:25:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5524, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8466:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5523, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8458:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5525, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8458:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5526, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5504, "src": "8470:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5527, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5506, "src": "8475:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5522, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5026, "src": "8449:8:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5528, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8449:35:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5529, "nodeType": "EmitStatement", "src": "8444:40:39" } ] }, "documentation": "@dev Internal function to mint a new token\n@dev Reverts if the given token ID already exists\n@param _to The address that will own the minted token\n@param _tokenId uint256 ID of the token to be minted by the msg.sender", "id": 5531, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "parameters": { "id": 5507, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5504, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5531, "src": "8335:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5503, "name": "address", "nodeType": "ElementaryTypeName", "src": "8335:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5506, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5531, "src": "8348:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5505, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8348:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "8334:31:39" }, "payable": false, "returnParameters": { "id": 5508, "nodeType": "ParameterList", "parameters": [], "src": "8375:0:39" }, "scope": 5707, "src": "8320:169:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5556, "nodeType": "Block", "src": "8738:130:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5539, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5533, "src": "8758:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5540, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5535, "src": "8766:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5538, "name": "clearApproval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5598, "src": "8744:13:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5541, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8744:31:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5542, "nodeType": "ExpressionStatement", "src": "8744:31:39" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5544, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5533, "src": "8797:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5545, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5535, "src": "8805:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5543, "name": "removeTokenFrom", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5668, "src": "8781:15:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 5546, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8781:33:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5547, "nodeType": "ExpressionStatement", "src": "8781:33:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5549, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5533, "src": "8834:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5551, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8850:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5550, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8842:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5552, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8842:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5553, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5535, "src": "8854:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5548, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5026, "src": "8825:8:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5554, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8825:38:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5555, "nodeType": "EmitStatement", "src": "8820:43:39" } ] }, "documentation": "@dev Internal function to burn a specific token\n@dev Reverts if the token does not exist\n@param _tokenId uint256 ID of the token being burned by the msg.sender", "id": 5557, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 5536, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5533, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 5557, "src": "8695:14:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5532, "name": "address", "nodeType": "ElementaryTypeName", "src": "8695:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5535, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5557, "src": "8711:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5534, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8711:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "8694:34:39" }, "payable": false, "returnParameters": { "id": 5537, "nodeType": "ParameterList", "parameters": [], "src": "8738:0:39" }, "scope": 5707, "src": "8680:188:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5597, "nodeType": "Block", "src": "9201:199:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5569, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5566, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5561, "src": "9223:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5565, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 5231 ], "referencedDeclaration": 5231, "src": "9215:7:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5567, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9215:17:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5568, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5559, "src": "9236:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9215:27:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5564, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "9207:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5570, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9207:36:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5571, "nodeType": "ExpressionStatement", "src": "9207:36:39" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5578, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5572, "name": "tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5148, "src": "9253:14:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5574, "indexExpression": { "argumentTypes": null, "id": 5573, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5561, "src": "9268:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "9253:24:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5576, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9289:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5575, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9281:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5577, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9281:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9253:38:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 5596, "nodeType": "IfStatement", "src": "9249:147:39", "trueBody": { "id": 5595, "nodeType": "Block", "src": "9293:103:39", "statements": [ { "expression": 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"operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5583, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9336:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5582, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9328:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5584, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9328:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9301:37:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5586, "nodeType": "ExpressionStatement", "src": "9301:37:39" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5588, "name": "_owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5559, "src": "9360:6:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5590, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9376:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5589, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9368:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5591, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9368:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5592, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5561, "src": "9380:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5587, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5034, "src": "9351:8:39", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 5593, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9351:38:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5594, "nodeType": "EmitStatement", "src": "9346:43:39" } ] } } ] }, "documentation": "@dev Internal function to clear current approval of a given token ID\n@dev Reverts if the given address is not indeed the owner of the token\n@param _owner owner of the token\n@param _tokenId uint256 ID of the token to be transferred", "id": 5598, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "clearApproval", "nodeType": "FunctionDefinition", "parameters": { "id": 5562, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5559, "name": "_owner", "nodeType": "VariableDeclaration", "scope": 5598, "src": "9158:14:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5558, "name": "address", "nodeType": "ElementaryTypeName", "src": "9158:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5561, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5598, "src": "9174:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5560, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "9174:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "9157:34:39" }, "payable": false, "returnParameters": { "id": 5563, "nodeType": "ParameterList", "parameters": [], "src": "9201:0:39" }, "scope": 5707, "src": "9135:265:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5632, "nodeType": "Block", "src": "9723:144:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5612, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5606, "name": "tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5144, "src": "9737:10:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5608, "indexExpression": { "argumentTypes": null, "id": 5607, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5602, "src": "9748:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "9737:20:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5610, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9769:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5609, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9761:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5611, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9761:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9737:34:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5605, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "9729:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5613, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9729:43:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5614, "nodeType": "ExpressionStatement", "src": "9729:43:39" }, { "expression": { "argumentTypes": null, "id": 5619, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5615, "name": "tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5144, "src": "9778:10:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5617, "indexExpression": { "argumentTypes": null, "id": 5616, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5602, "src": "9789:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "9778:20:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 5618, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5600, "src": "9801:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "9778:26:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5620, "nodeType": "ExpressionStatement", "src": "9778:26:39" }, { "expression": { "argumentTypes": null, "id": 5630, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5621, "name": "ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5152, "src": "9810:16:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 5623, "indexExpression": { "argumentTypes": null, "id": 5622, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5600, "src": "9827:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "9810:21:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 5628, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9860:1:39", "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, "baseExpression": { "argumentTypes": null, "id": 5624, "name": "ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5152, "src": "9834:16:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 5626, "indexExpression": { "argumentTypes": null, "id": 5625, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5600, "src": "9851:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "9834:21:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5627, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 4280, "src": "9834:25:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 5629, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9834:28:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "9810:52:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5631, "nodeType": "ExpressionStatement", "src": "9810:52:39" } ] }, "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": 5633, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "addTokenTo", "nodeType": "FunctionDefinition", "parameters": { "id": 5603, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5600, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5633, "src": "9683:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5599, "name": "address", "nodeType": "ElementaryTypeName", "src": "9683:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5602, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5633, "src": "9696:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5601, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "9696:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "9682:31:39" }, "payable": false, "returnParameters": { "id": 5604, "nodeType": "ParameterList", "parameters": [], "src": "9723:0:39" }, "scope": 5707, "src": "9663:204:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5667, "nodeType": "Block", "src": "10213:147:39", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 5645, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5642, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5637, "src": "10235:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 5641, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 5231 ], "referencedDeclaration": 5231, "src": "10227:7:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 5643, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10227:17:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5644, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5635, "src": "10248:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "10227:26:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 5640, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6112, 6113 ], "referencedDeclaration": 6112, "src": "10219:7:39", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 5646, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10219:35:39", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 5647, "nodeType": "ExpressionStatement", "src": "10219:35:39" }, { "expression": { "argumentTypes": null, "id": 5657, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5648, "name": "ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5152, "src": "10260:16:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 5650, "indexExpression": { "argumentTypes": null, "id": 5649, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5635, "src": "10277:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "10260:23:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 5655, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "10314:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5651, "name": "ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5152, "src": "10286:16:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 5653, "indexExpression": { "argumentTypes": null, "id": 5652, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5635, "src": "10303:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "10286:23:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5654, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 4256, "src": "10286:27:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 5656, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10286:30:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "10260:56:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 5658, "nodeType": "ExpressionStatement", "src": "10260:56:39" }, { "expression": { "argumentTypes": null, "id": 5665, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 5659, "name": "tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5144, "src": "10322:10:39", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 5661, "indexExpression": { "argumentTypes": null, "id": 5660, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5637, "src": "10333:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "10322:20:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 5663, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "10353:1:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 5662, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "10345:7:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 5664, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10345:10:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "10322:33:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5666, "nodeType": "ExpressionStatement", "src": "10322:33:39" } ] }, "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": 5668, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "removeTokenFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 5638, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5635, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5668, "src": "10171:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5634, "name": "address", "nodeType": "ElementaryTypeName", "src": "10171:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5637, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5668, "src": "10186:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5636, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "10186:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "10170:33:39" }, "payable": false, "returnParameters": { "id": 5639, "nodeType": "ParameterList", "parameters": [], "src": "10213:0:39" }, "scope": 5707, "src": "10146:214:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 5705, "nodeType": "Block", "src": "11018:188:39", "statements": [ { "condition": { "argumentTypes": null, "id": 5684, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "11028:17:39", "subExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 5681, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5672, "src": "11029:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 5682, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "isContract", "nodeType": "MemberAccess", "referencedDeclaration": 4126, "src": "11029:14:39", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$bound_to$_t_address_$", "typeString": "function (address) view returns (bool)" } }, "id": 5683, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11029:16:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 5688, "nodeType": "IfStatement", "src": "11024:49:39", "trueBody": { "id": 5687, "nodeType": "Block", "src": "11047:26:39", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 5685, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "11062:4:39", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 5680, "id": 5686, "nodeType": "Return", "src": "11055:11:39" } ] } }, { "assignments": [ 5690 ], "declarations": [ { "constant": false, "id": 5690, "name": "retval", "nodeType": "VariableDeclaration", "scope": 5706, "src": "11078:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 5689, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "11078:6:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" } ], "id": 5699, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5695, "name": "_from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5670, "src": "11138:5:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 5696, "name": "_tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5674, "src": "11145:8:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 5697, "name": "_data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5676, "src": "11155:5:39", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 5692, "name": "_to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5672, "src": "11109:3:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 5691, "name": "ERC721Receiver", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5724, "src": "11094:14:39", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_ERC721Receiver_$5724_$", "typeString": "type(contract ERC721Receiver)" } }, "id": 5693, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11094:19:39", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC721Receiver_$5724", "typeString": "contract ERC721Receiver" } }, "id": 5694, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "onERC721Received", "nodeType": "MemberAccess", "referencedDeclaration": 5723, "src": "11094:36:39", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$", "typeString": "function (address,uint256,bytes memory) external returns (bytes4)" } }, "id": 5698, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11094:67:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "VariableDeclarationStatement", "src": "11078:83:39" }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "id": 5702, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 5700, "name": "retval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5690, "src": "11175:6:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 5701, "name": "ERC721_RECEIVED", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 5140, "src": "11185:15:39", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "src": "11175:25:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 5703, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "11174:27:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 5680, "id": 5704, "nodeType": "Return", "src": "11167:34:39" } ] }, "documentation": "@dev Internal function to invoke `onERC721Received` on a target address\n@dev The call is not executed if the target address is not a contract\n@param _from address representing the previous owner of the given token ID\n@param _to target address that will receive the tokens\n@param _tokenId uint256 ID of the token to be transferred\n@param _data bytes optional data to send along with the call\n@return whether the call correctly returned the expected magic value", "id": 5706, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "checkAndCallSafeTransfer", "nodeType": "FunctionDefinition", "parameters": { "id": 5677, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5670, "name": "_from", "nodeType": "VariableDeclaration", "scope": 5706, "src": "10910:13:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5669, "name": "address", "nodeType": "ElementaryTypeName", "src": "10910:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5672, "name": "_to", "nodeType": "VariableDeclaration", "scope": 5706, "src": "10929:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 5671, "name": "address", "nodeType": "ElementaryTypeName", "src": "10929:7:39", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5674, "name": "_tokenId", "nodeType": "VariableDeclaration", "scope": 5706, "src": "10946:16:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 5673, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "10946:7:39", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 5676, "name": "_data", "nodeType": "VariableDeclaration", "scope": 5706, "src": "10968:11:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 5675, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "10968:5:39", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "10904:79:39" }, "payable": false, "returnParameters": { "id": 5680, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5679, "name": "", "nodeType": "VariableDeclaration", "scope": 5706, "src": "11010:4:39", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 5678, "name": "bool", "nodeType": "ElementaryTypeName", "src": "11010:4:39", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "11009:6:39" }, "scope": 5707, "src": "10871:335:39", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" } ], "scope": 5708, "src": "301:10907:39" } ], "src": "0:11209:39" }, "compiler": { "name": "solc", "version": "0.4.25+commit.59dbf8f1.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.0-beta.1", "updatedAt": "2018-11-01T18:10:50.815Z" }