{ "fileName": "MockStandaloneERC721.sol", "contractName": "SafeMath", "source": "pragma solidity ^0.5.0;\n\nimport \"../Initializable.sol\";\n\n// File: contracts/introspection/IERC165.sol\n\n/**\n * @title IERC165\n * @dev https://github.com/ethereum/EIPs/blob/master/EIPS/eip-165.md\n */\ninterface IERC165 {\n /**\n * @notice Query if a contract implements an interface\n * @param interfaceId The interface identifier, as specified in ERC-165\n * @dev Interface identification is specified in ERC-165. This function\n * uses less than 30,000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n\n// File: contracts/token/MockERC721/IMockERC721.sol\n\n\n\n/**\n * @title MockERC721 Non-Fungible Token Standard basic interface\n * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md\n */\ncontract IMockERC721 is Initializable, IERC165 {\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n function balanceOf(address owner) public view returns (uint256 balance);\n function ownerOf(uint256 tokenId) public view returns (address owner);\n\n function approve(address to, uint256 tokenId) public;\n function getApproved(uint256 tokenId) public view returns (address operator);\n\n function setApprovalForAll(address operator, bool _approved) public;\n function isApprovedForAll(address owner, address operator) public view returns (bool);\n\n function transferFrom(address from, address to, uint256 tokenId) public;\n function safeTransferFrom(address from, address to, uint256 tokenId) public;\n\n function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;\n}\n\n// File: contracts/token/MockERC721/IMockERC721Receiver.sol\n\n/**\n * @title MockERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from MockERC721 asset contracts.\n */\ncontract IMockERC721Receiver {\n /**\n * @notice Handle the receipt of an NFT\n * @dev The MockERC721 smart contract calls this function on the recipient\n * after a `safeTransfer`. This function MUST return the function selector,\n * otherwise the caller will revert the transaction. The selector to be\n * returned can be obtained as `this.onMockERC721Received.selector`. This\n * function MAY throw to revert and reject the transfer.\n * Note: the MockERC721 contract address is always the message sender.\n * @param operator The address which called `safeTransferFrom` function\n * @param from The address which previously owned the token\n * @param tokenId The NFT identifier which is being transferred\n * @param data Additional data with no specified format\n * @return `bytes4(keccak256(\"onMockERC721Received(address,address,uint256,bytes)\"))`\n */\n function onMockERC721Received(address operator, address from, uint256 tokenId, bytes memory data)\n public returns (bytes4);\n}\n\n// File: contracts/math/SafeMath.sol\n\n/**\n * @title SafeMath\n * @dev Unsigned math operations with safety checks that revert on error\n */\nlibrary SafeMath {\n /**\n * @dev Multiplies two unsigned integers, reverts on overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b);\n\n return c;\n }\n\n /**\n * @dev Integer division of two unsigned integers truncating the quotient, reverts on division by zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n // Solidity only automatically asserts when dividing by 0\n require(b > 0);\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Subtracts two unsigned integers, reverts on overflow (i.e. if subtrahend is greater than minuend).\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b <= a);\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Adds two unsigned integers, reverts on overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a);\n\n return c;\n }\n\n /**\n * @dev Divides two unsigned integers and returns the remainder (unsigned integer modulo),\n * reverts when dividing by zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n require(b != 0);\n return a % b;\n }\n}\n\n// File: contracts/utils/Address.sol\n\n/**\n * Utility library of inline functions on addresses\n */\nlibrary Address {\n /**\n * Returns whether the target address is a contract\n * @dev This function will return false if invoked during the constructor of a contract,\n * as the code is not actually created until after the constructor finishes.\n * @param account address of the account to check\n * @return whether the target address is a contract\n */\n function isContract(address account) internal view returns (bool) {\n uint256 size;\n // XXX Currently there is no better way to check if there is a contract in an address\n // than to check the size of the code at that address.\n // See https://ethereum.stackexchange.com/a/14016/36603\n // for more details about how this works.\n // TODO Check this again before the Serenity release, because all addresses will be\n // contracts then.\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n}\n\n// File: contracts/introspection/ERC165.sol\n\n\n\n/**\n * @title ERC165\n * @author Matt Condon (@shrugs)\n * @dev Implements ERC165 using a lookup table.\n */\ncontract ERC165 is Initializable, IERC165 {\n bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;\n /**\n * 0x01ffc9a7 ===\n * bytes4(keccak256('supportsInterface(bytes4)'))\n */\n\n /**\n * @dev a mapping of interface id to whether or not it's supported\n */\n mapping(bytes4 => bool) private _supportedInterfaces;\n\n /**\n * @dev A contract implementing SupportsInterfaceWithLookup\n * implement ERC165 itself\n */\n function initialize() public initializer {\n _registerInterface(_INTERFACE_ID_ERC165);\n }\n\n /**\n * @dev implement supportsInterface(bytes4) using a lookup table\n */\n function supportsInterface(bytes4 interfaceId) public view returns (bool) {\n return _supportedInterfaces[interfaceId];\n }\n\n /**\n * @dev internal method for registering an interface\n */\n function _registerInterface(bytes4 interfaceId) internal {\n require(interfaceId != 0xffffffff);\n _supportedInterfaces[interfaceId] = true;\n }\n\n uint256[50] private ______gap;\n}\n\n// File: contracts/token/MockERC721/MockERC721.sol\n\n/**\n * @title MockERC721 Non-Fungible Token Standard basic implementation\n * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md\n */\ncontract MockERC721 is Initializable, ERC165, IMockERC721 {\n using SafeMath for uint256;\n using Address for address;\n\n // Equals to `bytes4(keccak256(\"onMockERC721Received(address,address,uint256,bytes)\"))`\n // which can be also obtained as `IMockERC721Receiver(0).onMockERC721Received.selector`\n bytes4 private constant _MockERC721_RECEIVED = 0x150b7a02;\n\n // Mapping from token ID to owner\n mapping (uint256 => address) private _tokenOwner;\n\n // Mapping from token ID to approved address\n mapping (uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to number of owned token\n mapping (address => uint256) private _ownedTokensCount;\n\n // Mapping from owner to operator approvals\n mapping (address => mapping (address => bool)) private _operatorApprovals;\n\n bytes4 private constant _INTERFACE_ID_MockERC721 = 0x80ac58cd;\n /*\n * 0x80ac58cd ===\n * bytes4(keccak256('balanceOf(address)')) ^\n * bytes4(keccak256('ownerOf(uint256)')) ^\n * bytes4(keccak256('approve(address,uint256)')) ^\n * bytes4(keccak256('getApproved(uint256)')) ^\n * bytes4(keccak256('setApprovalForAll(address,bool)')) ^\n * bytes4(keccak256('isApprovedForAll(address,address)')) ^\n * bytes4(keccak256('transferFrom(address,address,uint256)')) ^\n * bytes4(keccak256('safeTransferFrom(address,address,uint256)')) ^\n * bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)'))\n */\n\n function initialize() public initializer {\n ERC165.initialize();\n\n // register the supported interfaces to conform to MockERC721 via ERC165\n _registerInterface(_INTERFACE_ID_MockERC721);\n }\n\n function _hasBeenInitialized() internal view returns (bool) {\n return supportsInterface(_INTERFACE_ID_MockERC721);\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 Approves another address to transfer the given token ID\n * The zero address indicates there is no approved address.\n * There can only be one approved address per token at a given time.\n * 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 _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Gets the approved address for a token ID, or zero if no address set\n * Reverts if the token ID does not exist.\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 require(_exists(tokenId));\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev Sets or unsets the approval of a given operator\n * 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(address owner, address operator) public view returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Transfers the ownership of a given token ID to another address\n * Usage of this method is discouraged, use `safeTransferFrom` whenever possible\n * 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(address from, address to, uint256 tokenId) public {\n require(_isApprovedOrOwner(msg.sender, tokenId));\n\n _transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onMockERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onMockERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n *\n * 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(address from, address to, uint256 tokenId) public {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers the ownership of a given token ID to another address\n * If the target address is a contract, it must implement `onMockERC721Received`,\n * which is called upon a safe transfer, and return the magic value\n * `bytes4(keccak256(\"onMockERC721Received(address,address,uint256,bytes)\"))`; otherwise,\n * the transfer is reverted.\n * 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(address from, address to, uint256 tokenId, bytes memory _data) public {\n transferFrom(from, to, tokenId);\n require(_checkOnMockERC721Received(from, to, tokenId, _data));\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) internal view returns (bool) {\n address owner = _tokenOwner[tokenId];\n return owner != address(0);\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(address spender, uint256 tokenId) internal view returns (bool) {\n address owner = ownerOf(tokenId);\n return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));\n }\n\n /**\n * @dev Internal function to mint a new token\n * 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\n */\n function _mint(address to, uint256 tokenId) internal {\n require(to != address(0));\n require(!_exists(tokenId));\n\n _tokenOwner[tokenId] = to;\n _ownedTokensCount[to] = _ownedTokensCount[to].add(1);\n\n emit Transfer(address(0), to, tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token\n * Reverts if the token does not exist\n * Deprecated, use _burn(uint256) instead.\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n require(ownerOf(tokenId) == owner);\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[owner] = _ownedTokensCount[owner].sub(1);\n _tokenOwner[tokenId] = address(0);\n\n emit Transfer(owner, address(0), tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token\n * Reverts if the token does not exist\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(uint256 tokenId) internal {\n _burn(ownerOf(tokenId), tokenId);\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\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(address from, address to, uint256 tokenId) internal {\n require(ownerOf(tokenId) == from);\n require(to != address(0));\n\n _clearApproval(tokenId);\n\n _ownedTokensCount[from] = _ownedTokensCount[from].sub(1);\n _ownedTokensCount[to] = _ownedTokensCount[to].add(1);\n\n _tokenOwner[tokenId] = to;\n\n emit Transfer(from, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke `onMockERC721Received` on a target address\n * 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 _checkOnMockERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n internal returns (bool)\n {\n if (!to.isContract()) {\n return true;\n }\n\n bytes4 retval = IMockERC721Receiver(to).onMockERC721Received(msg.sender, from, tokenId, _data);\n return (retval == _MockERC721_RECEIVED);\n }\n\n /**\n * @dev Private function to clear current approval of a given token ID\n * @param tokenId uint256 ID of the token to be transferred\n */\n function _clearApproval(uint256 tokenId) private {\n if (_tokenApprovals[tokenId] != address(0)) {\n _tokenApprovals[tokenId] = address(0);\n }\n }\n\n uint256[50] private ______gap;\n}\n\n// File: contracts/token/MockERC721/IMockERC721Enumerable.sol\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md\n */\ncontract IMockERC721Enumerable is Initializable, IMockERC721 {\n function totalSupply() public view returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view returns (uint256);\n}\n\n// File: contracts/token/MockERC721/MockERC721Enumerable.sol\n\n\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token with optional enumeration extension logic\n * @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md\n */\ncontract MockERC721Enumerable is Initializable, ERC165, MockERC721, IMockERC721Enumerable {\n // Mapping from owner to list of owned token IDs\n mapping(address => uint256[]) private _ownedTokens;\n\n // Mapping from token ID to index of the owner tokens list\n mapping(uint256 => uint256) private _ownedTokensIndex;\n\n // Array with all token ids, used for enumeration\n uint256[] private _allTokens;\n\n // Mapping from token id to position in the allTokens array\n mapping(uint256 => uint256) private _allTokensIndex;\n\n bytes4 private constant _INTERFACE_ID_MockERC721_ENUMERABLE = 0x780e9d63;\n /**\n * 0x780e9d63 ===\n * bytes4(keccak256('totalSupply()')) ^\n * bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) ^\n * bytes4(keccak256('tokenByIndex(uint256)'))\n */\n\n /**\n * @dev Constructor function\n */\n function initialize() public initializer {\n require(MockERC721._hasBeenInitialized());\n\n // register the supported interface to conform to MockERC721 via ERC165\n _registerInterface(_INTERFACE_ID_MockERC721_ENUMERABLE);\n }\n\n function _hasBeenInitialized() internal view returns (bool) {\n return supportsInterface(_INTERFACE_ID_MockERC721_ENUMERABLE);\n }\n\n /**\n * @dev Gets the token ID at a given index of the tokens list of the requested owner\n * @param owner address owning the tokens list to be accessed\n * @param index uint256 representing the index to be accessed of the requested tokens list\n * @return uint256 token ID at the given index of the tokens list owned by the requested address\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {\n require(index < balanceOf(owner));\n return _ownedTokens[owner][index];\n }\n\n /**\n * @dev Gets the total amount of tokens stored by the contract\n * @return uint256 representing the total amount of tokens\n */\n function totalSupply() public view returns (uint256) {\n return _allTokens.length;\n }\n\n /**\n * @dev Gets the token ID at a given index of all the tokens in this contract\n * Reverts if the index is greater or equal to the total number of tokens\n * @param index uint256 representing the index to be accessed of the tokens list\n * @return uint256 token ID at the given index of the tokens list\n */\n function tokenByIndex(uint256 index) public view returns (uint256) {\n require(index < totalSupply());\n return _allTokens[index];\n }\n\n /**\n * @dev Internal function to transfer ownership of a given token ID to another address.\n * As opposed to transferFrom, this imposes no restrictions on msg.sender.\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(address from, address to, uint256 tokenId) internal {\n super._transferFrom(from, to, tokenId);\n\n _removeTokenFromOwnerEnumeration(from, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n }\n\n /**\n * @dev Internal function to mint a new token\n * Reverts if the given token ID already exists\n * @param to address the beneficiary that will own the minted token\n * @param tokenId uint256 ID of the token to be minted\n */\n function _mint(address to, uint256 tokenId) internal {\n super._mint(to, tokenId);\n\n _addTokenToOwnerEnumeration(to, tokenId);\n\n _addTokenToAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Internal function to burn a specific token\n * Reverts if the token does not exist\n * Deprecated, use _burn(uint256) instead\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n _removeTokenFromOwnerEnumeration(owner, tokenId);\n // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund\n _ownedTokensIndex[tokenId] = 0;\n\n _removeTokenFromAllTokensEnumeration(tokenId);\n }\n\n /**\n * @dev Gets the list of token IDs of the requested owner\n * @param owner address owning the tokens\n * @return uint256[] List of token IDs owned by the requested address\n */\n function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {\n return _ownedTokens[owner];\n }\n\n /**\n * @dev Private function to add a token to this extension's ownership-tracking data structures.\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 _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n _ownedTokensIndex[tokenId] = _ownedTokens[to].length;\n _ownedTokens[to].push(tokenId);\n }\n\n /**\n * @dev Private function to add a token to this extension's token tracking data structures.\n * @param tokenId uint256 ID of the token to be added to the tokens list\n */\n function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n _allTokensIndex[tokenId] = _allTokens.length;\n _allTokens.push(tokenId);\n }\n\n /**\n * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n * while the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\n * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n * This has O(1) time complexity, but alters the order of the _ownedTokens array.\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 _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);\n uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary\n if (tokenIndex != lastTokenIndex) {\n uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n }\n\n // This also deletes the contents at the last position of the array\n _ownedTokens[from].length--;\n\n // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occcupied by\n // lasTokenId, or just over the end of the array if the token was the last one).\n }\n\n /**\n * @dev Private function to remove a token from this extension's token tracking data structures.\n * This has O(1) time complexity, but alters the order of the _allTokens array.\n * @param tokenId uint256 ID of the token to be removed from the tokens list\n */\n function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n // then delete the last slot (swap and pop).\n\n uint256 lastTokenIndex = _allTokens.length.sub(1);\n uint256 tokenIndex = _allTokensIndex[tokenId];\n\n // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n // This also deletes the contents at the last position of the array\n _allTokens.length--;\n _allTokensIndex[tokenId] = 0;\n }\n\n uint256[50] private ______gap;\n}\n\n// File: contracts/token/MockERC721/IMockERC721Metadata.sol\n\n\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md\n */\ncontract IMockERC721Metadata is Initializable, IMockERC721 {\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n\n// File: contracts/token/MockERC721/MockERC721Metadata.sol\n\n\n\n\n\ncontract MockERC721Metadata is Initializable, ERC165, MockERC721, IMockERC721Metadata {\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Optional mapping for token URIs\n mapping(uint256 => string) private _tokenURIs;\n\n bytes4 private constant _INTERFACE_ID_MockERC721_METADATA = 0x5b5e139f;\n /**\n * 0x5b5e139f ===\n * bytes4(keccak256('name()')) ^\n * bytes4(keccak256('symbol()')) ^\n * bytes4(keccak256('tokenURI(uint256)'))\n */\n\n /**\n * @dev Constructor function\n */\n function initialize(string memory name, string memory symbol) public initializer {\n require(MockERC721._hasBeenInitialized());\n\n _name = name;\n _symbol = symbol;\n\n // register the supported interfaces to conform to MockERC721 via ERC165\n _registerInterface(_INTERFACE_ID_MockERC721_METADATA);\n }\n\n function _hasBeenInitialized() internal view returns (bool) {\n return supportsInterface(_INTERFACE_ID_MockERC721_METADATA);\n }\n\n /**\n * @dev Gets the token name\n * @return string representing the token name\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Gets the token symbol\n * @return string representing the token symbol\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns an URI for a given token ID\n * Throws if the token ID does not exist. May return an empty string.\n * @param tokenId uint256 ID of the token to query\n */\n function tokenURI(uint256 tokenId) external view returns (string memory) {\n require(_exists(tokenId));\n return _tokenURIs[tokenId];\n }\n\n /**\n * @dev Internal function to set the token URI for a given token\n * Reverts if the token ID does not exist\n * @param tokenId uint256 ID of the token to set its URI\n * @param uri string URI to assign\n */\n function _setTokenURI(uint256 tokenId, string memory uri) internal {\n require(_exists(tokenId));\n _tokenURIs[tokenId] = uri;\n }\n\n /**\n * @dev Internal function to burn a specific token\n * Reverts if the token does not exist\n * Deprecated, use _burn(uint256) instead\n * @param owner owner of the token to burn\n * @param tokenId uint256 ID of the token being burned by the msg.sender\n */\n function _burn(address owner, uint256 tokenId) internal {\n super._burn(owner, tokenId);\n\n // Clear metadata (if any)\n if (bytes(_tokenURIs[tokenId]).length != 0) {\n delete _tokenURIs[tokenId];\n }\n }\n\n uint256[50] private ______gap;\n}\n\n// File: contracts/access/Roles.sol\n\n/**\n * @title Roles\n * @dev Library for managing addresses assigned to a Role.\n */\nlibrary Roles {\n struct Role {\n mapping (address => bool) bearer;\n }\n\n /**\n * @dev give an account access to this role\n */\n function add(Role storage role, address account) internal {\n require(account != address(0));\n require(!has(role, account));\n\n role.bearer[account] = true;\n }\n\n /**\n * @dev remove an account's access to this role\n */\n function remove(Role storage role, address account) internal {\n require(account != address(0));\n require(has(role, account));\n\n role.bearer[account] = false;\n }\n\n /**\n * @dev check if an account has this role\n * @return bool\n */\n function has(Role storage role, address account) internal view returns (bool) {\n require(account != address(0));\n return role.bearer[account];\n }\n}\n\n// File: contracts/access/roles/MinterRole.sol\n\n\n\n\ncontract MinterRole is Initializable {\n using Roles for Roles.Role;\n\n event MinterAdded(address indexed account);\n event MinterRemoved(address indexed account);\n\n Roles.Role private _minters;\n\n function initialize(address sender) public initializer {\n if (!isMinter(sender)) {\n _addMinter(sender);\n }\n }\n\n modifier onlyMinter() {\n require(isMinter(msg.sender));\n _;\n }\n\n function isMinter(address account) public view returns (bool) {\n return _minters.has(account);\n }\n\n function addMinter(address account) public onlyMinter {\n _addMinter(account);\n }\n\n function renounceMinter() public {\n _removeMinter(msg.sender);\n }\n\n function _addMinter(address account) internal {\n _minters.add(account);\n emit MinterAdded(account);\n }\n\n function _removeMinter(address account) internal {\n _minters.remove(account);\n emit MinterRemoved(account);\n }\n\n uint256[50] private ______gap;\n}\n\n// File: contracts/token/MockERC721/MockERC721MetadataMintable.sol\n\n\n\n\n\n/**\n * @title MockERC721MetadataMintable\n * @dev MockERC721 minting logic with metadata\n */\ncontract MockERC721MetadataMintable is Initializable, MockERC721, MockERC721Metadata, MinterRole {\n function initialize(address sender) public initializer {\n require(MockERC721._hasBeenInitialized());\n require(MockERC721Metadata._hasBeenInitialized());\n MinterRole.initialize(sender);\n }\n\n /**\n * @dev Function to mint tokens\n * @param to The address that will receive the minted tokens.\n * @param tokenId The token id to mint.\n * @param tokenURI The token URI of the minted token.\n * @return A boolean that indicates if the operation was successful.\n */\n function mintWithTokenURI(address to, uint256 tokenId, string memory tokenURI) public onlyMinter returns (bool) {\n _mint(to, tokenId);\n _setTokenURI(tokenId, tokenURI);\n return true;\n }\n\n uint256[50] private ______gap;\n}\n\n// File: contracts/access/roles/PauserRole.sol\n\n\n\n\ncontract PauserRole is Initializable {\n using Roles for Roles.Role;\n\n event PauserAdded(address indexed account);\n event PauserRemoved(address indexed account);\n\n Roles.Role private _pausers;\n\n function initialize(address sender) public initializer {\n if (!isPauser(sender)) {\n _addPauser(sender);\n }\n }\n\n modifier onlyPauser() {\n require(isPauser(msg.sender));\n _;\n }\n\n function isPauser(address account) public view returns (bool) {\n return _pausers.has(account);\n }\n\n function addPauser(address account) public onlyPauser {\n _addPauser(account);\n }\n\n function renouncePauser() public {\n _removePauser(msg.sender);\n }\n\n function _addPauser(address account) internal {\n _pausers.add(account);\n emit PauserAdded(account);\n }\n\n function _removePauser(address account) internal {\n _pausers.remove(account);\n emit PauserRemoved(account);\n }\n\n uint256[50] private ______gap;\n}\n\n// File: contracts/lifecycle/Pausable.sol\n\n\n\n/**\n * @title Pausable\n * @dev Base contract which allows children to implement an emergency stop mechanism.\n */\ncontract Pausable is Initializable, PauserRole {\n event Paused(address account);\n event Unpaused(address account);\n\n bool private _paused;\n\n function initialize(address sender) public initializer {\n PauserRole.initialize(sender);\n\n _paused = false;\n }\n\n /**\n * @return true if the contract is paused, false otherwise.\n */\n function paused() public view returns (bool) {\n return _paused;\n }\n\n /**\n * @dev Modifier to make a function callable only when the contract is not paused.\n */\n modifier whenNotPaused() {\n require(!_paused);\n _;\n }\n\n /**\n * @dev Modifier to make a function callable only when the contract is paused.\n */\n modifier whenPaused() {\n require(_paused);\n _;\n }\n\n /**\n * @dev called by the owner to pause, triggers stopped state\n */\n function pause() public onlyPauser whenNotPaused {\n _paused = true;\n emit Paused(msg.sender);\n }\n\n /**\n * @dev called by the owner to unpause, returns to normal state\n */\n function unpause() public onlyPauser whenPaused {\n _paused = false;\n emit Unpaused(msg.sender);\n }\n\n uint256[50] private ______gap;\n}\n\n// File: contracts/token/MockERC721/MockERC721Pausable.sol\n\n\n\n\n/**\n * @title MockERC721 Non-Fungible Pausable token\n * @dev MockERC721 modified with pausable transfers.\n **/\ncontract MockERC721Pausable is Initializable, MockERC721, Pausable {\n function initialize(address sender) public initializer {\n require(MockERC721._hasBeenInitialized());\n Pausable.initialize(sender);\n }\n\n function approve(address to, uint256 tokenId) public whenNotPaused {\n super.approve(to, tokenId);\n }\n\n function setApprovalForAll(address to, bool approved) public whenNotPaused {\n super.setApprovalForAll(to, approved);\n }\n\n function transferFrom(address from, address to, uint256 tokenId) public whenNotPaused {\n super.transferFrom(from, to, tokenId);\n }\n\n uint256[50] private ______gap;\n}\n\n// File: contracts/token/MockERC721/StandaloneMockERC721.sol\n\n\n\n\n\n\n\n\n/**\n * @title Standard MockERC721 token, with minting and pause functionality.\n *\n */\ncontract MockStandaloneERC721\n is Initializable, MockERC721, MockERC721Enumerable, MockERC721Metadata, MockERC721MetadataMintable, MockERC721Pausable\n{\n function initialize(string memory name, string memory symbol, address[] memory minters, address[] memory pausers) public initializer {\n MockERC721.initialize();\n MockERC721Enumerable.initialize();\n MockERC721Metadata.initialize(name, symbol);\n\n // Initialize the minter and pauser roles, and renounce them\n MockERC721MetadataMintable.initialize(address(this));\n _removeMinter(address(this));\n\n MockERC721Pausable.initialize(address(this));\n _removePauser(address(this));\n\n // Add the requested minters and pausers (this can be done after renouncing since\n // these are the 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receiver interface\n@dev Interface for any contract that wants to support safeTransfers\nfrom MockERC721 asset contracts.", "fullyImplemented": false, "id": 1977, "linearizedBaseContracts": [ 1977 ], "name": "IMockERC721Receiver", "nodeType": "ContractDefinition", "nodes": [ { "body": null, "documentation": "@notice Handle the receipt of an NFT\n@dev The MockERC721 smart contract calls this function on the recipient\nafter a `safeTransfer`. This function MUST return the function selector,\notherwise the caller will revert the transaction. The selector to be\nreturned can be obtained as `this.onMockERC721Received.selector`. This\nfunction MAY throw to revert and reject the transfer.\nNote: the MockERC721 contract address is always the message sender.\n@param operator The address which called `safeTransferFrom` function\n@param from The address which previously owned the token\n@param tokenId The NFT identifier which is being transferred\n@param data Additional data with no specified format\n@return `bytes4(keccak256(\"onMockERC721Received(address,address,uint256,bytes)\"))`", "id": 1976, "implemented": false, "kind": "function", "modifiers": [], "name": "onMockERC721Received", "nodeType": "FunctionDefinition", "parameters": { "id": 1972, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1965, "name": "operator", "nodeType": "VariableDeclaration", "scope": 1976, "src": "2960:16:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1964, "name": "address", "nodeType": 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"t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 1973, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "3048:6:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" } ], "src": "3047:8:13" }, "scope": 1977, "src": "2930:126:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" } ], "scope": 3980, "src": "2028:1030:13" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "@title SafeMath\n@dev Unsigned math operations with safety checks that revert on error", "fullyImplemented": true, "id": 2103, "linearizedBaseContracts": [ 2103 ], "name": "SafeMath", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 2009, "nodeType": "Block", "src": "3369:354:13", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1988, "isConstant": false, 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"typeName": { "id": 2288, "name": "address", "nodeType": "ElementaryTypeName", "src": "10526:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 2293, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2291, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2285, "src": "10550:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2290, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 2281 ], "referencedDeclaration": 2281, "src": "10542:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2292, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10542:16:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "10526:32:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2297, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2295, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2283, "src": "10576:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "id": 2296, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2289, "src": "10582:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "10576:11:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2294, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "10568:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2298, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10568:20:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2299, "nodeType": "ExpressionStatement", "src": "10568:20:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 2310, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2304, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2301, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6463, "src": "10606:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2302, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "10606:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2303, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2289, "src": "10620:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "10606:19:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2306, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2289, "src": "10646:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2307, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6463, "src": "10653:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2308, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "10653:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 2305, "name": "isApprovedForAll", "nodeType": "Identifier", "overloadedDeclarations": [ 2391 ], "referencedDeclaration": 2391, "src": "10629:16:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_bool_$", "typeString": "function (address,address) view returns (bool)" } }, "id": 2309, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10629:35:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "10606:58:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2300, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "10598:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2311, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10598:67:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2312, "nodeType": "ExpressionStatement", "src": "10598:67:13" }, { "expression": { "argumentTypes": null, "id": 2317, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2313, "name": "_tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2199, "src": "10676:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2315, "indexExpression": { "argumentTypes": null, "id": 2314, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2285, "src": "10692:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "10676:24:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 2316, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2283, "src": "10703:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "10676:29:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2318, "nodeType": "ExpressionStatement", "src": "10676:29:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2320, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2289, "src": "10729:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2321, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2283, "src": "10736:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2322, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2285, "src": "10740:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2319, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1881, "src": "10720:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2323, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10720:28:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2324, "nodeType": "EmitStatement", "src": "10715:33:13" } ] }, "documentation": "@dev Approves another address to transfer the given token ID\nThe zero address indicates there is no approved address.\nThere can only be one approved address per token at a given time.\nCan 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": 2326, "implemented": true, "kind": "function", "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "parameters": { "id": 2286, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2283, "name": "to", "nodeType": "VariableDeclaration", "scope": 2326, "src": "10480:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2282, "name": "address", "nodeType": "ElementaryTypeName", "src": "10480:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2285, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2326, "src": "10492:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2284, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "10492:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "10479:29:13" }, "returnParameters": { "id": 2287, "nodeType": "ParameterList", "parameters": [], "src": "10516:0:13" }, "scope": 2751, "src": "10463:292:13", "stateMutability": "nonpayable", "superFunction": 1910, "visibility": "public" }, { "body": { "id": 2343, "nodeType": "Block", "src": "11108:83:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2335, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2328, "src": "11134:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2334, "name": "_exists", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2479, "src": "11126:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view returns (bool)" } }, "id": 2336, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11126:16:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2333, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "11118:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2337, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11118:25:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2338, "nodeType": "ExpressionStatement", "src": "11118:25:13" }, { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2339, "name": "_tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2199, "src": "11160:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2341, "indexExpression": { "argumentTypes": null, "id": 2340, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2328, "src": "11176:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "11160:24:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "functionReturnParameters": 2332, "id": 2342, "nodeType": "Return", "src": "11153:31:13" } ] }, "documentation": "@dev Gets the approved address for a token ID, or zero if no address set\nReverts if the token ID does not exist.\n@param tokenId uint256 ID of the token to query the approval of\n@return address currently approved for the given token ID", "id": 2344, "implemented": true, "kind": "function", "modifiers": [], "name": "getApproved", "nodeType": "FunctionDefinition", "parameters": { "id": 2329, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2328, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2344, "src": "11061:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2327, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "11061:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "11060:17:13" }, "returnParameters": { "id": 2332, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2331, "name": "", "nodeType": "VariableDeclaration", "scope": 2344, "src": "11099:7:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2330, "name": "address", "nodeType": "ElementaryTypeName", "src": "11099:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "11098:9:13" }, "scope": 2751, "src": "11040:151:13", "stateMutability": "view", "superFunction": 1917, "visibility": "public" }, { "body": { "id": 2374, "nodeType": "Block", "src": "11544:152:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2355, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2352, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2346, "src": "11562:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2353, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6463, "src": "11568:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2354, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "11568:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "11562:16:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2351, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "11554:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2356, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11554:25:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2357, "nodeType": "ExpressionStatement", "src": "11554:25:13" }, { "expression": { "argumentTypes": null, "id": 2365, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2358, "name": "_operatorApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2209, "src": "11589:18:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" } }, "id": 2362, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2359, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6463, "src": "11608:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2360, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "11608:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "11589:30:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 2363, "indexExpression": { "argumentTypes": null, "id": 2361, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2346, "src": "11620:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "11589:34:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 2364, "name": "approved", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2348, "src": "11626:8:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "11589:45:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 2366, "nodeType": "ExpressionStatement", "src": "11589:45:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2368, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6463, "src": "11664:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2369, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "11664:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2370, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2346, "src": "11676:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2371, "name": "approved", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2348, "src": "11680:8:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2367, "name": "ApprovalForAll", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1889, "src": "11649:14:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_bool_$returns$__$", "typeString": "function (address,address,bool)" } }, "id": 2372, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11649:40:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2373, "nodeType": "EmitStatement", "src": "11644:45:13" } ] }, "documentation": "@dev Sets or unsets the approval of a given operator\nAn 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": 2375, "implemented": true, "kind": "function", "modifiers": [], "name": "setApprovalForAll", "nodeType": "FunctionDefinition", "parameters": { "id": 2349, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2346, "name": "to", "nodeType": "VariableDeclaration", "scope": 2375, "src": "11510:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2345, "name": "address", "nodeType": "ElementaryTypeName", "src": "11510:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2348, "name": "approved", "nodeType": "VariableDeclaration", "scope": 2375, "src": "11522:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2347, "name": "bool", "nodeType": "ElementaryTypeName", "src": "11522:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "11509:27:13" }, "returnParameters": { "id": 2350, "nodeType": "ParameterList", "parameters": [], "src": "11544:0:13" }, "scope": 2751, "src": "11483:213:13", "stateMutability": "nonpayable", "superFunction": 1924, "visibility": "public" }, { "body": { "id": 2390, "nodeType": "Block", "src": "12103:59:13", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2384, "name": "_operatorApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2209, "src": "12120:18:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" } }, "id": 2386, "indexExpression": { "argumentTypes": null, "id": 2385, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2377, "src": "12139:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "12120:25:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 2388, "indexExpression": { "argumentTypes": null, "id": 2387, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2379, "src": "12146:8:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "12120:35:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2383, "id": 2389, "nodeType": "Return", "src": "12113:42:13" } ] }, "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": 2391, "implemented": true, "kind": "function", "modifiers": [], "name": "isApprovedForAll", "nodeType": "FunctionDefinition", "parameters": { "id": 2380, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2377, "name": "owner", "nodeType": "VariableDeclaration", "scope": 2391, "src": "12043:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2376, "name": "address", "nodeType": "ElementaryTypeName", "src": "12043:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2379, "name": "operator", "nodeType": "VariableDeclaration", "scope": 2391, "src": "12058:16:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2378, "name": "address", "nodeType": "ElementaryTypeName", "src": "12058:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "12042:33:13" }, "returnParameters": { "id": 2383, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2382, "name": "", "nodeType": "VariableDeclaration", "scope": 2391, "src": "12097:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2381, "name": "bool", "nodeType": "ElementaryTypeName", "src": "12097:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "12096:6:13" }, "scope": 2751, "src": "12017:145:13", "stateMutability": "view", "superFunction": 1933, "visibility": "public" }, { "body": { "id": 2414, "nodeType": "Block", "src": "12667:108:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2402, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6463, "src": "12704:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2403, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "12704:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2404, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2397, "src": "12716:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2401, "name": "_isApprovedOrOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2511, "src": "12685:18:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) view returns (bool)" } }, "id": 2405, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12685:39:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2400, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "12677:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2406, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12677:48:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2407, "nodeType": "ExpressionStatement", "src": "12677:48:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2409, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2393, "src": "12750:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2410, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2395, "src": "12756:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2411, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2397, "src": "12760:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2408, "name": "_transferFrom", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2683, "src": "12736:13:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2412, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12736:32:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2413, "nodeType": "ExpressionStatement", "src": "12736:32:13" } ] }, "documentation": "@dev Transfers the ownership of a given token ID to another address\nUsage of this method is discouraged, use `safeTransferFrom` whenever possible\nRequires 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": 2415, "implemented": true, "kind": "function", "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 2398, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2393, "name": "from", "nodeType": "VariableDeclaration", "scope": 2415, "src": "12617:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2392, "name": "address", "nodeType": "ElementaryTypeName", "src": "12617:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2395, "name": "to", "nodeType": "VariableDeclaration", "scope": 2415, "src": "12631:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2394, "name": "address", "nodeType": "ElementaryTypeName", "src": "12631:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2397, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2415, "src": "12643:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2396, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "12643:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "12616:43:13" }, "returnParameters": { "id": 2399, "nodeType": "ParameterList", "parameters": [], "src": "12667:0:13" }, "scope": 2751, "src": "12595:180:13", "stateMutability": "nonpayable", "superFunction": 1942, "visibility": "public" }, { "body": { "id": 2431, "nodeType": "Block", "src": "13498:56:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2425, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2417, "src": "13525:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2426, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2419, "src": "13531:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2427, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2421, "src": "13535:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "", "id": 2428, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "13544:2:13", "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": 2424, "name": "safeTransferFrom", "nodeType": "Identifier", "overloadedDeclarations": [ 2432, 2459 ], "referencedDeclaration": 2459, "src": "13508:16:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,uint256,bytes memory)" } }, "id": 2429, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "13508:39:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2430, "nodeType": "ExpressionStatement", "src": "13508:39:13" } ] }, "documentation": "@dev Safely transfers the ownership of a given token ID to another address\nIf the target address is a contract, it must implement `onMockERC721Received`,\nwhich is called upon a safe transfer, and return the magic value\n`bytes4(keccak256(\"onMockERC721Received(address,address,uint256,bytes)\"))`; otherwise,\nthe transfer is reverted.\n * 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": 2432, "implemented": true, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 2422, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2417, "name": "from", "nodeType": "VariableDeclaration", "scope": 2432, "src": "13448:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2416, "name": "address", "nodeType": "ElementaryTypeName", "src": "13448:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2419, "name": "to", "nodeType": "VariableDeclaration", "scope": 2432, "src": "13462:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2418, "name": "address", "nodeType": "ElementaryTypeName", "src": "13462:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2421, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2432, "src": "13474:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2420, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "13474:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "13447:43:13" }, "returnParameters": { "id": 2423, "nodeType": "ParameterList", "parameters": [], "src": "13498:0:13" }, "scope": 2751, "src": "13422:132:13", "stateMutability": "nonpayable", "superFunction": 1951, "visibility": "public" }, { "body": { "id": 2458, "nodeType": "Block", "src": "14363:119:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2444, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2434, "src": "14386:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2445, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2436, "src": "14392:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2446, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2438, "src": "14396:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2443, "name": "transferFrom", "nodeType": "Identifier", "overloadedDeclarations": [ 2415 ], "referencedDeclaration": 2415, "src": "14373:12:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2447, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14373:31:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2448, "nodeType": "ExpressionStatement", "src": "14373:31:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2451, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2434, "src": "14449:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2452, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2436, "src": "14455:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2453, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2438, "src": "14459:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 2454, "name": "_data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2440, "src": "14468:5:13", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 2450, "name": "_checkOnMockERC721Received", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2723, "src": "14422:26:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bool_$", "typeString": "function (address,address,uint256,bytes memory) returns (bool)" } }, "id": 2455, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14422:52:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2449, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "14414:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2456, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14414:61:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2457, "nodeType": "ExpressionStatement", "src": "14414:61:13" } ] }, "documentation": "@dev Safely transfers the ownership of a given token ID to another address\nIf the target address is a contract, it must implement `onMockERC721Received`,\nwhich is called upon a safe transfer, and return the magic value\n`bytes4(keccak256(\"onMockERC721Received(address,address,uint256,bytes)\"))`; otherwise,\nthe transfer is reverted.\nRequires 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": 2459, "implemented": true, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 2441, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2434, "name": "from", "nodeType": "VariableDeclaration", "scope": 2459, "src": "14293:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2433, "name": "address", "nodeType": "ElementaryTypeName", "src": "14293:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2436, "name": "to", "nodeType": "VariableDeclaration", "scope": 2459, "src": "14307:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2435, "name": "address", "nodeType": "ElementaryTypeName", "src": "14307:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2438, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2459, "src": "14319:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2437, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "14319:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2440, "name": "_data", "nodeType": "VariableDeclaration", "scope": 2459, "src": "14336:18:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 2439, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "14336:5:13", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "14292:63:13" }, "returnParameters": { "id": 2442, "nodeType": "ParameterList", "parameters": [], "src": "14363:0:13" }, "scope": 2751, "src": "14267:215:13", "stateMutability": "nonpayable", "superFunction": 1962, "visibility": "public" }, { "body": { "id": 2478, "nodeType": "Block", "src": "14734:89:13", "statements": [ { "assignments": [ 2467 ], "declarations": [ { "constant": false, "id": 2467, "name": "owner", "nodeType": "VariableDeclaration", "scope": 2478, "src": "14744:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2466, "name": "address", "nodeType": "ElementaryTypeName", "src": "14744:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 2471, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2468, "name": "_tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2195, "src": "14760:11:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2470, "indexExpression": { "argumentTypes": null, "id": 2469, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2461, "src": "14772:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "14760:20:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "14744:36:13" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2476, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2472, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2467, "src": "14797:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2474, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "14814:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2473, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "14806:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2475, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14806:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "14797:19:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2465, "id": 2477, "nodeType": "Return", "src": "14790:26:13" } ] }, "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": 2479, "implemented": true, "kind": "function", "modifiers": [], "name": "_exists", "nodeType": "FunctionDefinition", "parameters": { "id": 2462, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2461, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2479, "src": "14688:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2460, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "14688:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "14687:17:13" }, "returnParameters": { "id": 2465, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2464, "name": "", "nodeType": "VariableDeclaration", "scope": 2479, "src": "14728:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2463, "name": "bool", "nodeType": "ElementaryTypeName", "src": "14728:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "14727:6:13" }, "scope": 2751, "src": "14671:152:13", "stateMutability": "view", "superFunction": null, "visibility": "internal" }, { "body": { "id": 2510, "nodeType": "Block", "src": "15277:155:13", "statements": [ { "assignments": [ 2489 ], "declarations": [ { "constant": false, "id": 2489, "name": "owner", "nodeType": "VariableDeclaration", "scope": 2510, "src": "15287:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2488, "name": "address", "nodeType": "ElementaryTypeName", "src": "15287:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 2493, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2491, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2483, "src": "15311:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2490, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 2281 ], "referencedDeclaration": 2281, "src": "15303:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2492, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15303:16:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "15287:32:13" }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 2507, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 2502, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2496, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2494, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2481, "src": "15337:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2495, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2489, "src": "15348:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "15337:16:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2501, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2498, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2483, "src": "15369:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2497, "name": "getApproved", "nodeType": "Identifier", "overloadedDeclarations": [ 2344 ], "referencedDeclaration": 2344, "src": "15357:11:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2499, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15357:20:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2500, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2481, "src": "15381:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "15357:31:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "15337:51:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2504, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2489, "src": "15409:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2505, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2481, "src": "15416:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 2503, "name": "isApprovedForAll", "nodeType": "Identifier", "overloadedDeclarations": [ 2391 ], "referencedDeclaration": 2391, "src": "15392:16:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_bool_$", "typeString": "function (address,address) view returns (bool)" } }, "id": 2506, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15392:32:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "15337:87:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 2508, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "15336:89:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2487, "id": 2509, "nodeType": "Return", "src": "15329:96:13" } ] }, "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": 2511, "implemented": true, "kind": "function", "modifiers": [], "name": "_isApprovedOrOwner", "nodeType": "FunctionDefinition", "parameters": { "id": 2484, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2481, "name": "spender", "nodeType": "VariableDeclaration", "scope": 2511, "src": "15214:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2480, "name": "address", "nodeType": "ElementaryTypeName", "src": "15214:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2483, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2511, "src": "15231:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2482, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "15231:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "15213:34:13" }, "returnParameters": { "id": 2487, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2486, "name": "", "nodeType": "VariableDeclaration", "scope": 2511, "src": "15271:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2485, "name": "bool", "nodeType": "ElementaryTypeName", "src": "15271:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "15270:6:13" }, "scope": 2751, "src": "15186:246:13", "stateMutability": "view", "superFunction": null, "visibility": "internal" }, { "body": { "id": 2558, "nodeType": "Block", "src": "15728:225:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2523, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2519, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2513, "src": "15746:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2521, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "15760:1:13", "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": 2520, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "15752:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2522, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15752:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "15746:16:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2518, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "15738:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2524, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15738:25:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2525, "nodeType": "ExpressionStatement", "src": "15738:25:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2530, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "15781:17:13", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2528, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2515, "src": "15790:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2527, "name": "_exists", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2479, "src": "15782:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view returns (bool)" } }, "id": 2529, "isConstant": false, "isLValue": false, "isPure": false, "kind": 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"=", "rightHandSide": { "argumentTypes": null, "id": 2536, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2513, "src": "15833:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "15810:25:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2538, "nodeType": "ExpressionStatement", "src": "15810:25:13" }, { "expression": { "argumentTypes": null, "id": 2548, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2539, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2203, "src": "15845:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2541, "indexExpression": { "argumentTypes": null, "id": 2540, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2513, "src": "15863:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "15845:21:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 2546, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "15895:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2542, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2203, "src": "15869:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2544, "indexExpression": { "argumentTypes": null, "id": 2543, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2513, "src": "15887:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "15869:21:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2545, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 2082, "src": "15869:25:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 2547, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15869:28:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "15845:52:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2549, "nodeType": "ExpressionStatement", "src": "15845:52:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2552, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "15930:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2551, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "15922:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2553, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15922:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2554, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2513, "src": "15934:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2555, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2515, "src": "15938:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2550, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1873, "src": "15913:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2556, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15913:33:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2557, "nodeType": "EmitStatement", "src": "15908:38:13" } ] }, "documentation": "@dev Internal function to mint a new token\nReverts 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", "id": 2559, "implemented": true, "kind": "function", "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "parameters": { "id": 2516, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2513, "name": "to", "nodeType": "VariableDeclaration", "scope": 2559, "src": "15690:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2512, "name": "address", "nodeType": "ElementaryTypeName", "src": "15690:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2515, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2559, "src": "15702:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2514, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "15702:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "15689:29:13" }, "returnParameters": { "id": 2517, "nodeType": "ParameterList", "parameters": [], "src": "15728:0:13" }, "scope": 2751, "src": "15675:278:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 2605, "nodeType": "Block", "src": "16282:249:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2571, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2568, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2563, "src": "16308:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2567, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 2281 ], "referencedDeclaration": 2281, "src": "16300:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2569, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16300:16:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2570, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2561, "src": "16320:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "16300:25:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2566, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "16292:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2572, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16292:34:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2573, "nodeType": "ExpressionStatement", "src": "16292:34:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2575, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2563, "src": "16352:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2574, "name": "_clearApproval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2746, "src": "16337:14:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 2576, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16337:23:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2577, "nodeType": "ExpressionStatement", "src": "16337:23:13" }, { "expression": { "argumentTypes": null, "id": 2587, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2578, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2203, "src": "16371:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2580, "indexExpression": { "argumentTypes": null, "id": 2579, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2561, "src": "16389:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "16371:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 2585, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16427:1:13", "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": 2581, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2203, "src": "16398:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2583, "indexExpression": { "argumentTypes": null, "id": 2582, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2561, "src": "16416:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "16398:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2584, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2058, "src": "16398:28:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 2586, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16398:31:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "16371:58:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2588, "nodeType": "ExpressionStatement", "src": "16371:58:13" }, { "expression": { "argumentTypes": null, "id": 2595, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2589, "name": "_tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2195, "src": "16439:11:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2591, "indexExpression": { "argumentTypes": null, "id": 2590, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2563, "src": "16451:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "16439:20:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2593, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16470:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2592, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "16462:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2594, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16462:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "16439:33:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2596, "nodeType": "ExpressionStatement", "src": "16439:33:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2598, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2561, "src": "16497:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2600, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16512:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2599, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "16504:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2601, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16504:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2602, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2563, "src": "16516:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2597, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1873, "src": "16488:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2603, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16488:36:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2604, "nodeType": "EmitStatement", "src": "16483:41:13" } ] }, "documentation": "@dev Internal function to burn a specific token\nReverts if the token does not exist\nDeprecated, use _burn(uint256) instead.\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", "id": 2606, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 2564, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2561, "name": "owner", "nodeType": "VariableDeclaration", "scope": 2606, "src": "16241:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2560, "name": "address", "nodeType": "ElementaryTypeName", "src": "16241:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2563, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2606, "src": "16256:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2562, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "16256:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "16240:32:13" }, "returnParameters": { "id": 2565, "nodeType": "ParameterList", "parameters": [], "src": "16282:0:13" }, "scope": 2751, "src": "16226:305:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 2618, "nodeType": "Block", "src": "16751:49:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2613, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2608, "src": "16775:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2612, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 2281 ], "referencedDeclaration": 2281, "src": "16767:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2614, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16767:16:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2615, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2608, "src": "16785:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2611, "name": "_burn", "nodeType": "Identifier", "overloadedDeclarations": [ 2606, 2619 ], "referencedDeclaration": 2606, "src": "16761:5:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 2616, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16761:32:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2617, "nodeType": "ExpressionStatement", "src": "16761:32:13" } ] }, "documentation": "@dev Internal function to burn a specific token\nReverts if the token does not exist\n@param tokenId uint256 ID of the token being burned", "id": 2619, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 2609, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2608, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2619, "src": "16725:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2607, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "16725:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "16724:17:13" }, "returnParameters": { "id": 2610, "nodeType": "ParameterList", "parameters": [], "src": "16751:0:13" }, "scope": 2751, "src": "16710:90:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 2682, "nodeType": "Block", "src": "17249:327:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2633, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2630, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2625, "src": "17275:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2629, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [ 2281 ], "referencedDeclaration": 2281, "src": "17267:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2631, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17267:16:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2632, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2621, "src": "17287:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "17267:24:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2628, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "17259:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2634, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17259:33:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2635, "nodeType": "ExpressionStatement", "src": "17259:33:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2641, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2637, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2623, "src": "17310:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2639, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "17324:1:13", "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": 2638, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "17316:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2640, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17316:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "17310:16:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2636, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "17302:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2642, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17302:25:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2643, "nodeType": "ExpressionStatement", "src": "17302:25:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2645, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2625, "src": "17353:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2644, "name": "_clearApproval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2746, "src": "17338:14:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 2646, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17338:23:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2647, "nodeType": "ExpressionStatement", "src": "17338:23:13" }, { "expression": { "argumentTypes": null, "id": 2657, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2648, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2203, "src": "17372:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2650, "indexExpression": { "argumentTypes": null, "id": 2649, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2621, "src": "17390:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "17372:23:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 2655, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "17426:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2651, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2203, "src": "17398:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2653, "indexExpression": { "argumentTypes": null, "id": 2652, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2621, "src": "17416:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "17398:23:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2654, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2058, "src": "17398:27:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 2656, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17398:30:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "17372:56:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2658, "nodeType": "ExpressionStatement", "src": "17372:56:13" }, { "expression": { "argumentTypes": null, "id": 2668, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2659, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2203, "src": "17438:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2661, "indexExpression": { "argumentTypes": null, "id": 2660, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2623, "src": "17456:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "17438:21:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 2666, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "17488:1:13", "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": 2662, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2203, "src": "17462:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2664, "indexExpression": { "argumentTypes": null, "id": 2663, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2623, "src": "17480:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "17462:21:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2665, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 2082, "src": "17462:25:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 2667, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17462:28:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "17438:52:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2669, "nodeType": "ExpressionStatement", "src": "17438:52:13" }, { "expression": { "argumentTypes": null, "id": 2674, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2670, "name": "_tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2195, "src": "17501:11:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2672, "indexExpression": { "argumentTypes": null, "id": 2671, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2625, "src": "17513:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "17501:20:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 2673, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2623, "src": "17524:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "17501:25:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2675, "nodeType": "ExpressionStatement", "src": "17501:25:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2677, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2621, "src": "17551:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2678, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2623, "src": "17557:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2679, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2625, "src": "17561:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2676, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1873, "src": "17542:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2680, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17542:27:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2681, "nodeType": "EmitStatement", "src": "17537:32:13" } ] }, "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\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": 2683, "implemented": true, "kind": "function", "modifiers": [], "name": "_transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 2626, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2621, "name": "from", "nodeType": "VariableDeclaration", "scope": 2683, "src": "17197:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2620, "name": "address", "nodeType": "ElementaryTypeName", "src": "17197:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2623, "name": "to", "nodeType": "VariableDeclaration", "scope": 2683, "src": "17211:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2622, "name": "address", "nodeType": "ElementaryTypeName", "src": "17211:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2625, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2683, "src": "17223:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2624, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "17223:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "17196:43:13" }, "returnParameters": { "id": 2627, "nodeType": "ParameterList", "parameters": [], "src": "17249:0:13" }, "scope": 2751, "src": "17174:402:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 2722, "nodeType": "Block", "src": "18238:228:13", "statements": [ { "condition": { "argumentTypes": null, "id": 2699, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "18252:16:13", "subExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 2696, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2687, "src": "18253:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2697, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "isContract", "nodeType": "MemberAccess", "referencedDeclaration": 2119, "src": "18253:13:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$bound_to$_t_address_$", "typeString": "function (address) view returns (bool)" } }, "id": 2698, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18253:15:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 2703, "nodeType": "IfStatement", "src": "18248:58:13", "trueBody": { "id": 2702, "nodeType": "Block", "src": "18270:36:13", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 2700, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "18291:4:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 2695, "id": 2701, "nodeType": "Return", "src": "18284:11:13" } ] } }, { "assignments": [ 2705 ], "declarations": [ { "constant": false, "id": 2705, "name": "retval", "nodeType": "VariableDeclaration", "scope": 2722, "src": "18316:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 2704, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "18316:6:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" } ], "id": 2716, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2710, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6463, "src": "18377:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2711, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "18377:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2712, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2685, "src": "18389:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2713, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2689, "src": "18395:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 2714, "name": "_data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2691, "src": "18404:5:13", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "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": 2707, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2687, "src": "18352:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 2706, "name": "IMockERC721Receiver", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1977, "src": "18332:19:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IMockERC721Receiver_$1977_$", "typeString": "type(contract IMockERC721Receiver)" } }, "id": 2708, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18332:23:13", "typeDescriptions": { "typeIdentifier": "t_contract$_IMockERC721Receiver_$1977", "typeString": "contract IMockERC721Receiver" } }, "id": 2709, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "onMockERC721Received", "nodeType": "MemberAccess", "referencedDeclaration": 1976, "src": "18332:44:13", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$", "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)" } }, "id": 2715, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18332:78:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "VariableDeclarationStatement", "src": "18316:94:13" }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "id": 2719, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2717, "name": "retval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2705, "src": "18428:6:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2718, "name": "_MockERC721_RECEIVED", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2191, "src": "18438:20:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "src": "18428:30:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 2720, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "18427:32:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2695, "id": 2721, "nodeType": "Return", "src": "18420:39:13" } ] }, "documentation": "@dev Internal function to invoke `onMockERC721Received` on a target address\nThe 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": 2723, "implemented": true, "kind": "function", "modifiers": [], "name": "_checkOnMockERC721Received", "nodeType": "FunctionDefinition", "parameters": { "id": 2692, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2685, "name": "from", "nodeType": "VariableDeclaration", "scope": 2723, "src": "18139:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2684, "name": "address", "nodeType": "ElementaryTypeName", "src": "18139:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2687, "name": "to", "nodeType": "VariableDeclaration", "scope": 2723, "src": "18153:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2686, "name": "address", "nodeType": "ElementaryTypeName", "src": "18153:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2689, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2723, "src": "18165:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2688, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "18165:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2691, "name": "_data", "nodeType": "VariableDeclaration", "scope": 2723, "src": "18182:18:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 2690, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "18182:5:13", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "18138:63:13" }, "returnParameters": { "id": 2695, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2694, "name": "", "nodeType": "VariableDeclaration", "scope": 2723, "src": "18228:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2693, "name": "bool", "nodeType": "ElementaryTypeName", "src": "18228:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "18227:6:13" }, "scope": 2751, "src": "18103:363:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 2745, "nodeType": "Block", "src": "18676:122:13", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2734, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2728, "name": "_tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2199, "src": "18690:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2730, "indexExpression": { "argumentTypes": null, "id": 2729, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2725, "src": "18706:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "18690:24:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2732, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "18726:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2731, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "18718:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2733, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18718:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "18690:38:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 2744, "nodeType": "IfStatement", "src": "18686:106:13", "trueBody": { "id": 2743, "nodeType": "Block", "src": "18730:62:13", "statements": [ { "expression": { "argumentTypes": null, "id": 2741, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2735, "name": "_tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2199, "src": "18744:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2737, "indexExpression": { "argumentTypes": null, "id": 2736, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2725, "src": "18760:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "18744:24:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2739, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "18779:1:13", "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": 2738, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "18771:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2740, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18771:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "18744:37:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2742, "nodeType": "ExpressionStatement", "src": "18744:37:13" } ] } } ] }, "documentation": "@dev Private function to clear current approval of a given token ID\n@param tokenId uint256 ID of the token to be transferred", "id": 2746, "implemented": true, "kind": "function", "modifiers": [], "name": "_clearApproval", "nodeType": "FunctionDefinition", "parameters": { "id": 2726, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2725, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2746, "src": "18651:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2724, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "18651:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "18650:17:13" }, "returnParameters": { "id": 2727, "nodeType": "ParameterList", "parameters": [], "src": "18676:0:13" }, "scope": 2751, "src": "18627:171:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "private" }, { "constant": false, "id": 2750, "name": "______gap", "nodeType": "VariableDeclaration", "scope": 2751, "src": "18804:29:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage", "typeString": "uint256[50]" }, "typeName": { "baseType": { "id": 2747, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "18804:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2749, "length": { "argumentTypes": null, "hexValue": "3530", "id": 2748, "isConstant": false, "isLValue": false, "isPure": false, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "18812:2:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": null, "typeString": null }, "value": "50" }, "nodeType": "ArrayTypeName", "src": "18804:11:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage_ptr", "typeString": "uint256[50]" } }, "value": null, "visibility": "private" } ], "scope": 3980, "src": "7440:11396:13" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 2752, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 68, "src": "19096:13:13", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$68", "typeString": "contract Initializable" } }, "id": 2753, "nodeType": "InheritanceSpecifier", "src": "19096:13:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 2754, "name": "IMockERC721", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1963, "src": "19111:11:13", "typeDescriptions": { "typeIdentifier": "t_contract$_IMockERC721_$1963", "typeString": "contract IMockERC721" } }, "id": 2755, "nodeType": "InheritanceSpecifier", "src": "19111:11:13" } ], "contractDependencies": [ 68, 1861, 1963 ], "contractKind": "contract", "documentation": "@title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n@dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md", "fullyImplemented": false, "id": 2777, "linearizedBaseContracts": [ 2777, 1963, 1861, 68 ], "name": "IMockERC721Enumerable", "nodeType": "ContractDefinition", "nodes": [ { "body": null, "documentation": null, "id": 2760, "implemented": false, "kind": "function", "modifiers": [], "name": "totalSupply", "nodeType": "FunctionDefinition", "parameters": { "id": 2756, "nodeType": "ParameterList", "parameters": [], "src": "19149:2:13" }, "returnParameters": { "id": 2759, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2758, "name": "", "nodeType": "VariableDeclaration", "scope": 2760, "src": "19173:7:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2757, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19173:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19172:9:13" }, "scope": 2777, "src": "19129:53:13", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": null, "documentation": null, "id": 2769, "implemented": false, "kind": "function", "modifiers": [], "name": "tokenOfOwnerByIndex", "nodeType": "FunctionDefinition", "parameters": { "id": 2765, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2762, "name": "owner", "nodeType": "VariableDeclaration", "scope": 2769, "src": "19216:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2761, "name": "address", "nodeType": "ElementaryTypeName", "src": "19216:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2764, "name": "index", "nodeType": "VariableDeclaration", "scope": 2769, "src": "19231:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2763, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19231:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19215:30:13" }, "returnParameters": { "id": 2768, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2767, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2769, "src": "19267:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2766, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19267:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19266:17:13" }, "scope": 2777, "src": "19187:97:13", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": null, "documentation": null, "id": 2776, "implemented": false, "kind": "function", "modifiers": [], "name": "tokenByIndex", "nodeType": "FunctionDefinition", "parameters": { "id": 2772, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2771, "name": "index", "nodeType": "VariableDeclaration", "scope": 2776, "src": "19312:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2770, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19312:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19311:15:13" }, "returnParameters": { "id": 2775, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2774, "name": "", "nodeType": "VariableDeclaration", "scope": 2776, "src": "19348:7:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2773, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19348:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19347:9:13" }, "scope": 2777, "src": "19290:67:13", "stateMutability": "view", "superFunction": null, "visibility": "public" } ], "scope": 3980, "src": "19062:297:13" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 2778, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 68, "src": "19620:13:13", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$68", "typeString": "contract Initializable" } }, "id": 2779, "nodeType": "InheritanceSpecifier", "src": "19620:13:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 2780, "name": "ERC165", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2176, "src": "19635:6:13", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC165_$2176", "typeString": "contract ERC165" } }, "id": 2781, "nodeType": "InheritanceSpecifier", "src": "19635:6:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 2782, "name": "MockERC721", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2751, "src": "19643:10:13", "typeDescriptions": { "typeIdentifier": "t_contract$_MockERC721_$2751", "typeString": "contract MockERC721" } }, "id": 2783, "nodeType": "InheritanceSpecifier", "src": "19643:10:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 2784, "name": "IMockERC721Enumerable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2777, "src": "19655:21:13", "typeDescriptions": { "typeIdentifier": "t_contract$_IMockERC721Enumerable_$2777", "typeString": "contract IMockERC721Enumerable" } }, "id": 2785, "nodeType": "InheritanceSpecifier", "src": "19655:21:13" } ], 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"argumentTypes": null, "id": 2894, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2884, "src": "22620:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2895, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2886, "src": "22626:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2896, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2888, "src": "22630:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 2891, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6574, "src": "22600:5:13", "typeDescriptions": { "typeIdentifier": "t_super$_MockERC721Enumerable_$3131", "typeString": "contract super MockERC721Enumerable" } }, "id": 2893, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_transferFrom", "nodeType": "MemberAccess", "referencedDeclaration": 2683, "src": "22600:19:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2897, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "22600:38:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2898, "nodeType": "ExpressionStatement", "src": "22600:38:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2900, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2884, "src": "22682:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2901, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2888, "src": "22688:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2899, "name": "_removeTokenFromOwnerEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3077, "src": "22649:32:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 2902, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "22649:47:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2903, "nodeType": "ExpressionStatement", "src": "22649:47:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2905, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2886, "src": "22735:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2906, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2888, "src": "22739:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2904, "name": "_addTokenToOwnerEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3001, "src": "22707:27:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 2907, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "22707:40:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2908, "nodeType": "ExpressionStatement", "src": "22707:40:13" } ] }, "documentation": "@dev Internal function to transfer ownership of a given token ID to another address.\nAs opposed to transferFrom, this imposes no restrictions on msg.sender.\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": 2910, "implemented": true, "kind": "function", "modifiers": [], "name": "_transferFrom", "nodeType": "FunctionDefinition", "parameters": { "id": 2889, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2884, "name": "from", "nodeType": "VariableDeclaration", "scope": 2910, "src": "22538:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2883, "name": "address", "nodeType": "ElementaryTypeName", "src": "22538:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2886, "name": "to", "nodeType": "VariableDeclaration", "scope": 2910, "src": "22552:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2885, "name": "address", "nodeType": "ElementaryTypeName", "src": "22552:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2888, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2910, "src": "22564:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2887, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "22564:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "22537:43:13" }, "returnParameters": { "id": 2890, "nodeType": "ParameterList", "parameters": [], "src": "22590:0:13" }, "scope": 3131, "src": "22515:239:13", "stateMutability": "nonpayable", "superFunction": 2683, "visibility": "internal" }, { "body": { "id": 2933, "nodeType": "Block", "src": "23062:143:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2920, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2912, "src": "23084:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2921, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2914, "src": "23088:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 2917, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6574, "src": "23072:5:13", "typeDescriptions": { "typeIdentifier": "t_super$_MockERC721Enumerable_$3131", "typeString": "contract super MockERC721Enumerable" } }, "id": 2919, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_mint", "nodeType": "MemberAccess", "referencedDeclaration": 2559, "src": "23072:11:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 2922, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23072:24:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2923, "nodeType": "ExpressionStatement", "src": "23072:24:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2925, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2912, "src": "23135:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2926, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2914, "src": "23139:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2924, "name": "_addTokenToOwnerEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3001, "src": "23107:27:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 2927, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23107:40:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2928, "nodeType": "ExpressionStatement", "src": "23107:40:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2930, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2914, "src": "23190:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2929, "name": "_addTokenToAllTokensEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3020, "src": "23158:31:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 2931, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23158:40:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2932, "nodeType": "ExpressionStatement", "src": "23158:40:13" } ] }, "documentation": "@dev Internal function to mint a new token\nReverts if the given token ID already exists\n@param to address the beneficiary that will own the minted token\n@param tokenId uint256 ID of the token to be minted", "id": 2934, "implemented": true, "kind": "function", "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "parameters": { "id": 2915, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2912, "name": "to", "nodeType": "VariableDeclaration", "scope": 2934, "src": "23024:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2911, "name": "address", "nodeType": "ElementaryTypeName", "src": "23024:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2914, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2934, "src": "23036:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2913, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "23036:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "23023:29:13" }, "returnParameters": { "id": 2916, "nodeType": "ParameterList", "parameters": [], "src": "23062:0:13" }, "scope": 3131, "src": "23009:196:13", "stateMutability": "nonpayable", "superFunction": 2559, "visibility": "internal" }, { "body": { "id": 2963, "nodeType": "Block", "src": "23533:308:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2944, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2936, "src": "23555:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2945, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2938, "src": "23562:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 2941, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6574, "src": "23543:5:13", "typeDescriptions": { "typeIdentifier": "t_super$_MockERC721Enumerable_$3131", "typeString": "contract super MockERC721Enumerable" } }, "id": 2943, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_burn", "nodeType": "MemberAccess", "referencedDeclaration": 2606, "src": "23543:11:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 2946, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23543:27:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2947, "nodeType": "ExpressionStatement", "src": "23543:27:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2949, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2936, "src": "23614:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2950, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2938, "src": "23621:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2948, "name": "_removeTokenFromOwnerEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3077, "src": "23581:32:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 2951, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23581:48:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2952, "nodeType": "ExpressionStatement", "src": "23581:48:13" }, { "expression": { "argumentTypes": null, "id": 2957, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2953, "name": "_ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2794, "src": "23748:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 2955, "indexExpression": { "argumentTypes": null, "id": 2954, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2938, "src": "23766:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "23748:26:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 2956, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "23777:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "23748:30:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2958, "nodeType": "ExpressionStatement", "src": "23748:30:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2960, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2938, "src": "23826:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2959, "name": "_removeTokenFromAllTokensEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3126, "src": "23789:36:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 2961, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23789:45:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2962, "nodeType": "ExpressionStatement", "src": "23789:45:13" } ] }, "documentation": "@dev Internal function to burn a specific token\nReverts if the token does not exist\nDeprecated, use _burn(uint256) instead\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned", "id": 2964, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 2939, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2936, "name": "owner", "nodeType": "VariableDeclaration", "scope": 2964, "src": "23492:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2935, "name": "address", "nodeType": "ElementaryTypeName", "src": "23492:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2938, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 2964, "src": "23507:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2937, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "23507:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "23491:32:13" }, "returnParameters": { "id": 2940, "nodeType": "ParameterList", "parameters": [], "src": "23533:0:13" }, "scope": 3131, "src": "23477:364:13", "stateMutability": "nonpayable", "superFunction": 2606, "visibility": "internal" }, { "body": { "id": 2976, "nodeType": "Block", "src": "24126:43:13", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2972, "name": "_ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2790, "src": "24143:12:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 2974, "indexExpression": { "argumentTypes": null, "id": 2973, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2966, "src": "24156:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "24143:19:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "functionReturnParameters": 2971, "id": 2975, "nodeType": "Return", "src": "24136:26:13" } ] }, "documentation": "@dev Gets the list of token IDs of the requested owner\n@param owner address owning the tokens\n@return uint256[] List of token IDs owned by the requested address", "id": 2977, "implemented": true, "kind": "function", "modifiers": [], "name": "_tokensOfOwner", "nodeType": "FunctionDefinition", "parameters": { "id": 2967, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2966, "name": "owner", "nodeType": "VariableDeclaration", "scope": 2977, "src": "24069:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2965, "name": "address", "nodeType": "ElementaryTypeName", "src": "24069:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "24068:15:13" }, "returnParameters": { "id": 2971, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2970, "name": "", "nodeType": "VariableDeclaration", "scope": 2977, "src": "24107:17:13", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": "uint256[]" }, "typeName": { "baseType": { "id": 2968, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "24107:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2969, "length": null, "nodeType": "ArrayTypeName", "src": "24107:9:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": "uint256[]" } }, "value": null, "visibility": "internal" } ], "src": "24106:19:13" }, "scope": 3131, "src": "24045:124:13", "stateMutability": "view", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3000, "nodeType": "Block", "src": "24537:109:13", "statements": [ { "expression": { "argumentTypes": null, "id": 2991, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2984, "name": "_ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2794, "src": "24547:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 2986, "indexExpression": { "argumentTypes": null, "id": 2985, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2981, "src": "24565:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "24547:26:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2987, "name": "_ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2790, "src": "24576:12:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 2989, "indexExpression": { "argumentTypes": null, "id": 2988, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2979, "src": "24589:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "24576:16:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 2990, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "24576:23:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "24547:52:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2992, "nodeType": "ExpressionStatement", "src": "24547:52:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2997, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2981, "src": "24631:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2993, "name": "_ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2790, "src": "24609:12:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 2995, "indexExpression": { "argumentTypes": null, "id": 2994, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2979, "src": "24622:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "24609:16:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 2996, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "push", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "24609:21:13", "typeDescriptions": { "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", "typeString": "function (uint256) returns (uint256)" } }, "id": 2998, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "24609:30:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2999, "nodeType": "ExpressionStatement", "src": "24609:30:13" } ] }, "documentation": "@dev Private function to add a token to this extension's ownership-tracking data structures.\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": 3001, "implemented": true, "kind": "function", "modifiers": [], "name": "_addTokenToOwnerEnumeration", "nodeType": "FunctionDefinition", "parameters": { "id": 2982, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2979, "name": "to", "nodeType": "VariableDeclaration", "scope": 3001, "src": "24500:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2978, "name": "address", "nodeType": "ElementaryTypeName", "src": "24500:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2981, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 3001, "src": "24512:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2980, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "24512:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "24499:29:13" }, "returnParameters": { "id": 2983, "nodeType": "ParameterList", "parameters": [], "src": "24537:0:13" }, "scope": 3131, "src": "24463:183:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "private" }, { "body": { "id": 3019, "nodeType": "Block", "src": "24907:95:13", "statements": [ { "expression": { "argumentTypes": null, "id": 3011, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3006, "name": "_allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2801, "src": "24917:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 3008, "indexExpression": { "argumentTypes": null, "id": 3007, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3003, "src": "24933:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "24917:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3009, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2797, "src": "24944:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3010, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "24944:17:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "24917:44:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3012, "nodeType": "ExpressionStatement", "src": "24917:44:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3016, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3003, "src": "24987:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3013, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2797, "src": "24971:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3015, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "push", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "24971:15:13", "typeDescriptions": { "typeIdentifier": "t_function_arraypush_nonpayable$_t_uint256_$returns$_t_uint256_$", "typeString": "function (uint256) returns (uint256)" } }, "id": 3017, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "24971:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3018, "nodeType": "ExpressionStatement", "src": "24971:24:13" } ] }, "documentation": "@dev Private function to add a token to this extension's token tracking data structures.\n@param tokenId uint256 ID of the token to be added to the tokens list", "id": 3020, "implemented": true, "kind": "function", "modifiers": [], "name": "_addTokenToAllTokensEnumeration", "nodeType": "FunctionDefinition", "parameters": { "id": 3004, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3003, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 3020, "src": "24882:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3002, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "24882:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "24881:17:13" }, "returnParameters": { "id": 3005, "nodeType": "ParameterList", "parameters": [], "src": "24907:0:13" }, "scope": 3131, "src": "24841:161:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "private" }, { "body": { "id": 3076, "nodeType": "Block", "src": "25698:1047:13", "statements": [ { "assignments": [ 3028 ], "declarations": [ { "constant": false, "id": 3028, "name": "lastTokenIndex", "nodeType": "VariableDeclaration", "scope": 3076, "src": "25879:22:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3027, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "25879:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3036, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 3034, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "25934:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3029, "name": "_ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2790, "src": "25904:12:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 3031, "indexExpression": { "argumentTypes": null, "id": 3030, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3022, "src": "25917:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "25904:18:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3032, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "25904:25:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3033, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2058, "src": "25904:29:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3035, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "25904:32:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "25879:57:13" }, { "assignments": [ 3038 ], "declarations": [ { "constant": false, "id": 3038, "name": "tokenIndex", "nodeType": "VariableDeclaration", "scope": 3076, "src": "25946:18:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3037, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "25946:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3042, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3039, "name": "_ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2794, "src": "25967:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 3041, "indexExpression": { "argumentTypes": null, "id": 3040, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3024, "src": "25985:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "25967:26:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "25946:47:13" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3045, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3043, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3038, "src": "26097:10:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "id": 3044, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3028, "src": "26111:14:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "26097:28:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 3069, "nodeType": "IfStatement", "src": "26093:323:13", "trueBody": { "id": 3068, "nodeType": "Block", "src": "26127:289:13", "statements": [ { "assignments": [ 3047 ], "declarations": [ { "constant": false, "id": 3047, "name": "lastTokenId", "nodeType": "VariableDeclaration", "scope": 3068, "src": "26141:19:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3046, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "26141:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3053, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3048, "name": "_ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2790, "src": "26163:12:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 3050, "indexExpression": { "argumentTypes": null, "id": 3049, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3022, "src": "26176:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "26163:18:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3052, "indexExpression": { "argumentTypes": null, "id": 3051, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3028, "src": "26182:14:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "26163:34:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "26141:56:13" }, { "expression": { "argumentTypes": null, "id": 3060, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3054, "name": "_ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2790, "src": "26212:12:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 3057, "indexExpression": { "argumentTypes": null, "id": 3055, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3022, "src": "26225:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "26212:18:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3058, "indexExpression": { "argumentTypes": null, "id": 3056, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3038, "src": "26231:10:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "26212:30:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3059, "name": "lastTokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3047, "src": "26245:11:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "26212:44:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3061, "nodeType": "ExpressionStatement", "src": "26212:44:13" }, { "expression": { "argumentTypes": null, "id": 3066, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3062, "name": "_ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2794, "src": "26328:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 3064, "indexExpression": { "argumentTypes": null, "id": 3063, "name": "lastTokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3047, "src": "26346:11:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "26328:30:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3065, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3038, "src": "26361:10:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "26328:43:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3067, "nodeType": "ExpressionStatement", "src": "26328:43:13" } ] } }, { "expression": { "argumentTypes": null, "id": 3074, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "--", "prefix": false, "src": "26502:27:13", "subExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3070, "name": "_ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2790, "src": "26502:12:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 3072, "indexExpression": { "argumentTypes": null, "id": 3071, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3022, "src": "26515:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "26502:18:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3073, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "26502:25:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3075, "nodeType": "ExpressionStatement", "src": "26502:27:13" } ] }, "documentation": "@dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\nwhile the token is not assigned a new owner, the _ownedTokensIndex mapping is _not_ updated: this allows for\ngas optimizations e.g. when performing a transfer operation (avoiding double writes).\nThis has O(1) time complexity, but alters the order of the _ownedTokens array.\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": 3077, "implemented": true, "kind": "function", "modifiers": [], "name": "_removeTokenFromOwnerEnumeration", "nodeType": "FunctionDefinition", "parameters": { "id": 3025, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3022, "name": "from", "nodeType": "VariableDeclaration", "scope": 3077, "src": "25659:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3021, "name": "address", "nodeType": "ElementaryTypeName", "src": "25659:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3024, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 3077, "src": "25673:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3023, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "25673:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "25658:31:13" }, "returnParameters": { "id": 3026, "nodeType": "ParameterList", "parameters": [], "src": "25698:0:13" }, "scope": 3131, "src": "25617:1128:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "private" }, { "body": { "id": 3125, "nodeType": "Block", "src": "27104:993:13", "statements": [ { "assignments": [ 3083 ], "declarations": [ { "constant": false, "id": 3083, "name": "lastTokenIndex", "nodeType": "VariableDeclaration", "scope": 3125, "src": "27282:22:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3082, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "27282:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3089, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 3087, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "27329:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3084, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2797, "src": "27307:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3085, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "27307:17:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3086, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2058, "src": "27307:21:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3088, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "27307:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "27282:49:13" }, { "assignments": [ 3091 ], "declarations": [ { "constant": false, "id": 3091, "name": "tokenIndex", "nodeType": "VariableDeclaration", "scope": 3125, "src": "27341:18:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3090, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "27341:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3095, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3092, "name": "_allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2801, "src": "27362:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 3094, "indexExpression": { "argumentTypes": null, "id": 3093, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3079, "src": "27378:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "27362:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "27341:45:13" }, { "assignments": [ 3097 ], "declarations": [ { "constant": false, "id": 3097, "name": "lastTokenId", "nodeType": "VariableDeclaration", "scope": 3125, "src": "27708:19:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3096, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "27708:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3101, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3098, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2797, "src": "27730:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3100, "indexExpression": { "argumentTypes": null, "id": 3099, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3083, "src": "27741:14:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "27730:26:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "27708:48:13" }, { "expression": { "argumentTypes": null, "id": 3106, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3102, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2797, "src": "27767:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3104, "indexExpression": { "argumentTypes": null, "id": 3103, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3091, "src": "27778:10:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "27767:22:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3105, "name": "lastTokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3097, "src": "27792:11:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "27767:36:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3107, "nodeType": "ExpressionStatement", "src": "27767:36:13" }, { "expression": { "argumentTypes": null, "id": 3112, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3108, "name": "_allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2801, "src": "27871:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 3110, "indexExpression": { "argumentTypes": null, "id": 3109, "name": "lastTokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3097, "src": "27887:11:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "27871:28:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3111, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3091, "src": "27902:10:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "27871:41:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3113, "nodeType": "ExpressionStatement", "src": "27871:41:13" }, { "expression": { "argumentTypes": null, "id": 3117, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "--", "prefix": false, "src": "28033:19:13", "subExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3114, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2797, "src": "28033:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3116, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "28033:17:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3118, "nodeType": "ExpressionStatement", "src": "28033:19:13" }, { "expression": { "argumentTypes": null, "id": 3123, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3119, "name": "_allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2801, "src": "28062:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 3121, "indexExpression": { "argumentTypes": null, "id": 3120, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3079, "src": "28078:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "28062:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 3122, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "28089:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "28062:28:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3124, "nodeType": "ExpressionStatement", "src": "28062:28:13" } ] }, "documentation": "@dev Private function to remove a token from this extension's token tracking data structures.\nThis has O(1) time complexity, but alters the order of the _allTokens array.\n@param tokenId uint256 ID of the token to be removed from the tokens list", "id": 3126, "implemented": true, "kind": "function", "modifiers": [], "name": "_removeTokenFromAllTokensEnumeration", "nodeType": "FunctionDefinition", "parameters": { "id": 3080, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3079, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 3126, "src": "27079:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3078, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "27079:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "27078:17:13" }, "returnParameters": { "id": 3081, "nodeType": "ParameterList", "parameters": [], "src": "27104:0:13" }, "scope": 3131, "src": "27033:1064:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "private" }, { "constant": false, "id": 3130, "name": "______gap", "nodeType": "VariableDeclaration", "scope": 3131, "src": "28103:29:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage", "typeString": "uint256[50]" }, "typeName": { "baseType": { "id": 3127, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "28103:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3129, "length": { "argumentTypes": null, "hexValue": "3530", "id": 3128, "isConstant": false, "isLValue": false, "isPure": false, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "28111:2:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": null, "typeString": null }, "value": "50" }, "nodeType": "ArrayTypeName", "src": "28103:11:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage_ptr", "typeString": "uint256[50]" } }, "value": null, "visibility": "private" } ], "scope": 3980, "src": "19587:8548:13" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 3132, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 68, "src": "28388:13:13", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$68", "typeString": "contract Initializable" } }, "id": 3133, "nodeType": "InheritanceSpecifier", "src": "28388:13:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 3134, "name": "IMockERC721", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1963, "src": "28403:11:13", "typeDescriptions": { "typeIdentifier": "t_contract$_IMockERC721_$1963", "typeString": "contract IMockERC721" } }, "id": 3135, "nodeType": "InheritanceSpecifier", "src": "28403:11:13" } ], "contractDependencies": [ 68, 1861, 1963 ], "contractKind": "contract", "documentation": "@title ERC-721 Non-Fungible Token Standard, optional metadata extension\n@dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md", "fullyImplemented": false, "id": 3153, "linearizedBaseContracts": [ 3153, 1963, 1861, 68 ], "name": "IMockERC721Metadata", "nodeType": "ContractDefinition", "nodes": [ { "body": null, "documentation": null, "id": 3140, "implemented": false, "kind": "function", "modifiers": [], "name": "name", "nodeType": "FunctionDefinition", "parameters": { "id": 3136, "nodeType": "ParameterList", "parameters": [], "src": "28434:2:13" }, "returnParameters": { "id": 3139, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3138, "name": "", "nodeType": "VariableDeclaration", "scope": 3140, "src": "28460:13:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 3137, "name": "string", "nodeType": "ElementaryTypeName", "src": "28460:6:13", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "28459:15:13" }, "scope": 3153, "src": "28421:54:13", "stateMutability": "view", "superFunction": null, "visibility": "external" }, { "body": null, "documentation": null, "id": 3145, "implemented": false, "kind": "function", "modifiers": [], "name": "symbol", "nodeType": "FunctionDefinition", "parameters": { "id": 3141, "nodeType": "ParameterList", "parameters": [], "src": "28495:2:13" }, "returnParameters": { "id": 3144, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3143, "name": "", "nodeType": "VariableDeclaration", "scope": 3145, "src": "28521:13:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 3142, "name": "string", "nodeType": "ElementaryTypeName", "src": "28521:6:13", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "28520:15:13" }, "scope": 3153, "src": "28480:56:13", "stateMutability": "view", "superFunction": null, "visibility": "external" }, { "body": null, "documentation": null, "id": 3152, "implemented": false, "kind": "function", "modifiers": [], "name": "tokenURI", "nodeType": "FunctionDefinition", "parameters": { "id": 3148, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3147, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 3152, "src": "28559:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3146, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "28559:7:13", "typeDescriptions": { 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"30824:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "30813:19:13", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3260, "name": "uri", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3248, "src": "30835:3:13", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "30813:25:13", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 3262, "nodeType": "ExpressionStatement", "src": "30813:25:13" } ] }, "documentation": "@dev Internal function to set the token URI for a given token\nReverts if the token ID does not exist\n@param tokenId uint256 ID of the token to set its URI\n@param uri string URI to assign", "id": 3264, "implemented": true, "kind": "function", "modifiers": [], "name": "_setTokenURI", "nodeType": "FunctionDefinition", "parameters": { "id": 3249, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3246, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 3264, "src": "30723:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3245, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "30723:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3248, "name": "uri", "nodeType": "VariableDeclaration", "scope": 3264, "src": "30740:17:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 3247, "name": "string", "nodeType": "ElementaryTypeName", "src": "30740:6:13", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "30722:36:13" }, "returnParameters": { "id": 3250, "nodeType": "ParameterList", "parameters": [], "src": "30768:0:13" }, "scope": 3299, "src": "30701:144:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 3293, "nodeType": "Block", "src": "31191:184:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3274, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3266, "src": "31213:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3275, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3268, "src": "31220:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3271, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6578, "src": "31201:5:13", "typeDescriptions": { "typeIdentifier": "t_super$_MockERC721Metadata_$3299", "typeString": "contract super MockERC721Metadata" } }, "id": 3273, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_burn", "nodeType": "MemberAccess", "referencedDeclaration": 2606, "src": "31201:11:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3276, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "31201:27:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3277, "nodeType": "ExpressionStatement", "src": "31201:27:13" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3285, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3279, "name": "_tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3169, "src": "31284:10:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 3281, "indexExpression": { "argumentTypes": null, "id": 3280, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3268, "src": "31295:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "31284:19:13", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } ], "id": 3278, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "31278:5:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes_storage_ptr_$", "typeString": "type(bytes storage pointer)" }, "typeName": "bytes" }, "id": 3282, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "31278:26:13", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes storage pointer" } }, "id": 3283, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "31278:33:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 3284, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "31315:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "31278:38:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 3292, "nodeType": "IfStatement", "src": "31274:95:13", "trueBody": { "id": 3291, "nodeType": "Block", "src": "31318:51:13", "statements": [ { "expression": { "argumentTypes": null, "id": 3289, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "delete", "prefix": true, "src": "31332:26:13", "subExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3286, "name": "_tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3169, "src": "31339:10:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 3288, "indexExpression": { "argumentTypes": null, "id": 3287, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3268, "src": "31350:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "31339:19:13", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3290, "nodeType": "ExpressionStatement", "src": "31332:26:13" } ] } } ] }, "documentation": "@dev Internal function to burn a specific token\nReverts if the token does not exist\nDeprecated, use _burn(uint256) instead\n@param owner owner of the token to burn\n@param tokenId uint256 ID of the token being burned by the msg.sender", "id": 3294, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "parameters": { "id": 3269, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3266, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3294, "src": "31150:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3265, "name": "address", "nodeType": "ElementaryTypeName", "src": "31150:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3268, "name": "tokenId", "nodeType": "VariableDeclaration", "scope": 3294, "src": "31165:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3267, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "31165:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "31149:32:13" }, "returnParameters": { "id": 3270, "nodeType": "ParameterList", "parameters": [], "src": "31191:0:13" }, "scope": 3299, "src": "31135:240:13", "stateMutability": "nonpayable", "superFunction": 2606, "visibility": "internal" }, { "constant": false, "id": 3298, "name": "______gap", "nodeType": "VariableDeclaration", "scope": 3299, "src": "31381:29:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage", "typeString": "uint256[50]" }, "typeName": { "baseType": { "id": 3295, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "31381:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3297, "length": { "argumentTypes": null, "hexValue": "3530", "id": 3296, "isConstant": false, "isLValue": false, "isPure": false, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "31389:2:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": null, "typeString": null }, "value": "50" }, "nodeType": "ArrayTypeName", "src": "31381:11:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage_ptr", "typeString": "uint256[50]" } }, "value": null, "visibility": "private" } ], "scope": 3980, "src": "28682:2731:13" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": "@title Roles\n@dev Library for managing addresses assigned to a Role.", "fullyImplemented": true, "id": 3391, "linearizedBaseContracts": [ 3391 ], "name": "Roles", "nodeType": "ContractDefinition", "nodes": [ { "canonicalName": "Roles.Role", "id": 3304, "members": [ { "constant": false, "id": 3303, "name": "bearer", "nodeType": "VariableDeclaration", "scope": 3304, "src": "31577:32:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "typeName": { "id": 3302, "keyType": { "id": 3300, "name": "address", "nodeType": "ElementaryTypeName", "src": "31586:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "31577:25:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "valueType": { "id": 3301, "name": "bool", "nodeType": "ElementaryTypeName", "src": "31597:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } }, "value": null, "visibility": "internal" } ], "name": "Role", "nodeType": "StructDefinition", "scope": 3391, "src": "31555:61:13", "visibility": "public" }, { "body": { "id": 3335, "nodeType": "Block", "src": "31744:123:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3316, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3312, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3308, "src": "31762:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3314, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "31781:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 3313, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "31773:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3315, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "31773:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "31762:21:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3311, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "31754:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3317, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "31754:30:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3318, "nodeType": "ExpressionStatement", "src": "31754:30:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3324, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "31802:19:13", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3321, "name": "role", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3306, "src": "31807:4:13", "typeDescriptions": { "typeIdentifier": "t_struct$_Role_$3304_storage_ptr", "typeString": "struct Roles.Role storage pointer" } }, { "argumentTypes": null, "id": 3322, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3308, "src": "31813:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_Role_$3304_storage_ptr", "typeString": "struct Roles.Role storage pointer" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 3320, "name": "has", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3390, "src": "31803:3:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_struct$_Role_$3304_storage_ptr_$_t_address_$returns$_t_bool_$", "typeString": "function (struct Roles.Role storage pointer,address) view returns (bool)" } }, "id": 3323, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "31803:18:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3319, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 6466, 6467 ], "referencedDeclaration": 6466, "src": "31794:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3325, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "31794:28:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3326, "nodeType": "ExpressionStatement", "src": "31794:28:13" }, { "expression": { "argumentTypes": null, "id": 3333, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3327, "name": "role", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3306, "src": "31833:4:13", "typeDescriptions": { "typeIdentifier": "t_struct$_Role_$3304_storage_ptr", "typeString": "struct Roles.Role storage pointer" } }, "id": 3330, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "bearer", "nodeType": "MemberAccess", "referencedDeclaration": 3303, "src": "31833:11:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 3331, "indexExpression": { "argumentTypes": null, "id": 3329, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3308, "src": "31845:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "31833:20:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "74727565", "id": 3332, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "31856:4:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "src": "31833:27:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 3334, "nodeType": "ExpressionStatement", "src": "31833:27:13" } ] }, "documentation": "@dev give an account access to this role", "id": 3336, "implemented": true, "kind": "function", "modifiers": [], "name": "add", "nodeType": "FunctionDefinition", "parameters": { "id": 3309, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3306, "name": "role", "nodeType": "VariableDeclaration", "scope": 3336, "src": "31699:17:13", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_struct$_Role_$3304_storage_ptr", "typeString": "struct Roles.Role" }, 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