{ "fileName": "MockStandaloneERC721.sol", "contractName": "Address", "source": "pragma solidity ^0.6.0;\n// SPDX-License-Identifier: MIT\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 */\nabstract contract 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 virtual returns (uint256 balance);\n // function ownerOf(uint256 tokenId) public view virtual returns (address owner);\n //\n // function approve(address to, uint256 tokenId) public virtual;\n // function getApproved(uint256 tokenId) public view virtual returns (address operator);\n //\n // function setApprovalForAll(address operator, bool _approved) public virtual;\n // function isApprovedForAll(address owner, address operator) public view virtual returns (bool) ;\n //\n // function transferFrom(address from, address to, uint256 tokenId) public virtual;\n // function safeTransferFrom(address from, address to, uint256 tokenId) public virtual;\n //\n // function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual;\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 */\nabstract contract 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 virtual 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 initializeERC165() 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 override 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 virtual {\n ERC165.initializeERC165();\n\n // register the supported interfaces to conform to MockERC721 via ERC165\n _registerInterface(_INTERFACE_ID_MockERC721);\n }\n\n function _hasBeenInitializedMockERC721() internal view virtual 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 approveMockERC721(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 setApprovalForAllMockERC721(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 transferFromMockERC721(address from, address to, uint256 tokenId) public virtual {\n require(_isApprovedOrOwner(msg.sender, tokenId));\n\n _transferFromMockERC721(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 transferFromMockERC721(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 _mintMockERC721(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 _burnMockERC721(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 _burnMockERC721(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 _transferFromMockERC721(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 */\nabstract contract IMockERC721Enumerable is Initializable, IMockERC721 {\n function totalSupply() public view virtual returns (uint256);\n function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual returns (uint256 tokenId);\n\n function tokenByIndex(uint256 index) public view virtual 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 initializeMockERC721Enumerable() public initializer {\n require(MockERC721._hasBeenInitializedMockERC721());\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 virtual 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 override 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 override 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 override 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._transferFromMockERC721(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 virtual {\n super._mintMockERC721(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 virtual {\n super._burnMockERC721(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 _ownedTokens[from].pop();\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.pop();\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 */\nabstract contract IMockERC721Metadata is Initializable, IMockERC721 {\n function name() external view virtual returns (string memory);\n function symbol() external view virtual returns (string memory);\n function tokenURI(uint256 tokenId) external view virtual 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._hasBeenInitializedMockERC721());\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 virtual 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 override 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 override 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 override 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 virtual {\n super._burnMockERC721(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 initializeMinterRole(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 initializeMockERC721MetadataMintable(address sender) public initializer {\n require(MockERC721._hasBeenInitializedMockERC721());\n require(MockERC721Metadata._hasBeenInitialized());\n MinterRole.initializeMinterRole(sender);\n }\n\n // function _burn(address owner, uint256 tokenId) internal override(MockERC721Metadata) {\n // MockERC721Metadata._burn(owner, tokenId);\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 _mintMockERC721(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 initializePauserRole(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 initializePausable(address sender) public initializer {\n PauserRole.initializePauserRole(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._hasBeenInitializedMockERC721());\n Pausable.initializePausable(sender);\n }\n\n function approve(address to, uint256 tokenId) public whenNotPaused {\n super.approveMockERC721(to, tokenId);\n }\n\n function setApprovalForAll(address to, bool approved) public whenNotPaused {\n super.setApprovalForAllMockERC721(to, approved);\n }\n\n function transferFrom(address from, address to, uint256 tokenId) public whenNotPaused {\n super.transferFromMockERC721(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.initializeMockERC721Enumerable();\n MockERC721Metadata.initialize(name, symbol);\n\n // Initialize the minter and pauser roles, and renounce them\n MockERC721MetadataMintable.initializeMockERC721MetadataMintable(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 internal calls)\n for (uint256 i = 0; i < minters.length; ++i) {\n _addMinter(minters[i]);\n }\n\n for (uint256 i = 0; i < pausers.length; ++i) {\n _addPauser(pausers[i]);\n }\n }\n\n // function transferFrom(address from, address to, uint256 tokenId) public override {\n // require(_isApprovedOrOwner(msg.sender, tokenId));\n //\n // _transferFrom(from, to, tokenId);\n // }\n\n // function setApprovalForAll(address to, bool approved) public override {\n // MockERC721.setApprovalForAll(to, approved);\n // }\n\n // function initialize(address sender) public initializer override {\n // require(MockERC721._hasBeenInitializedMockERC721());\n // require(MockERC721Metadata._hasBeenInitialized());\n // MinterRole.initialize(sender);\n // }\n\n // function initialize() public initializer override(ERC165) {\n // ERC165.initializeERC165();\n // }\n function _burn(address owner, uint256 tokenId) internal override(MockERC721Enumerable,MockERC721Metadata) {\n MockERC721Enumerable._burn(owner, tokenId);\n MockERC721Metadata._burn(owner, tokenId);\n\n }\n function _hasBeenInitialized() internal view override(MockERC721Enumerable, MockERC721Metadata) returns (bool) {\n MockERC721Enumerable._hasBeenInitialized();\n MockERC721Metadata._hasBeenInitialized();\n\n }\n\n function _mint(address to, uint256 tokenId) internal override(MockERC721Enumerable) {\n MockERC721Enumerable._mint(to,tokenId);\n }\n}\n", "sourcePath": "contracts/mocks/MockStandaloneERC721.sol", "sourceMap": "5206:996:13:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;", "deployedSourceMap": "5206:996:13:-:0;;;;;;;;;;;;;;", "abi": [], "ast": { "absolutePath": "contracts/mocks/MockStandaloneERC721.sol", "exportedSymbols": { "Address": [ 2173 ], "ERC165": [ 2235 ], "IERC165": [ 1976 ], "IMockERC721": [ 2006 ], "IMockERC721Enumerable": [ 2865 ], "IMockERC721Metadata": [ 3252 ], "IMockERC721Receiver": [ 2022 ], "MinterRole": [ 3622 ], "MockERC721": [ 2838 ], "MockERC721Enumerable": [ 3229 ], "MockERC721Metadata": [ 3408 ], "MockERC721MetadataMintable": [ 3689 ], "MockERC721Pausable": [ 3992 ], "MockStandaloneERC721": [ 4170 ], "Pausable": [ 3906 ], "PauserRole": [ 3804 ], "Roles": [ 3507 ], "SafeMath": [ 2154 ] }, "id": 4171, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 1965, "literals": [ "solidity", "^", "0.6", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:13" }, { "absolutePath": "contracts/Initializable.sol", "file": "../Initializable.sol", "id": 1966, "nodeType": "ImportDirective", "scope": 4171, "sourceUnit": 75, "src": "57:30:13", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "interface", "documentation": { "id": 1967, "nodeType": "StructuredDocumentation", "src": "135:94:13", "text": " @title IERC165\n @dev https://github.com/ethereum/EIPs/blob/master/EIPS/eip-165.md" }, "fullyImplemented": false, "id": 1976, "linearizedBaseContracts": [ 1976 ], "name": "IERC165", "nodeType": "ContractDefinition", "nodes": [ { "body": null, "documentation": { "id": 1968, "nodeType": "StructuredDocumentation", "src": "254:256:13", "text": " @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." }, "functionSelector": "01ffc9a7", "id": 1975, "implemented": false, "kind": "function", "modifiers": [], "name": "supportsInterface", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 1971, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1970, "mutability": "mutable", "name": "interfaceId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 1975, "src": "542:18:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 1969, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "542:6:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" } ], "src": "541:20:13" }, "returnParameters": { "id": 1974, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1973, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 1975, "src": "585:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 1972, "name": "bool", "nodeType": "ElementaryTypeName", "src": "585:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "584:6:13" }, "scope": 1976, "src": "515:76:13", "stateMutability": "view", "virtual": false, "visibility": "external" } ], "scope": 4171, "src": "230:363:13" }, { "abstract": true, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 1978, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 74, "src": "829:13:13", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$74", "typeString": "contract Initializable" } }, "id": 1979, "nodeType": "InheritanceSpecifier", "src": "829:13:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 1980, "name": "IERC165", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1976, "src": "844:7:13", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC165_$1976", "typeString": "contract IERC165" } }, "id": 1981, "nodeType": "InheritanceSpecifier", "src": "844:7:13" } ], "contractDependencies": [ 74, 1976 ], "contractKind": "contract", "documentation": { "id": 1977, "nodeType": "StructuredDocumentation", "src": "650:145:13", "text": " @title MockERC721 Non-Fungible Token Standard basic interface\n @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md" }, "fullyImplemented": false, "id": 2006, "linearizedBaseContracts": [ 2006, 1976, 74 ], "name": "IMockERC721", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "documentation": null, "id": 1989, "name": "Transfer", "nodeType": "EventDefinition", "parameters": { "id": 1988, "nodeType": "ParameterList", 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"stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1987, "indexed": true, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 1989, "src": "915:23:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1986, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "915:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "872:67:13" }, "src": "858:82:13" }, { "anonymous": false, "documentation": null, "id": 1997, "name": "Approval", "nodeType": "EventDefinition", "parameters": { "id": 1996, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1991, "indexed": true, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 1997, "src": "960:21:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1990, "name": "address", "nodeType": "ElementaryTypeName", "src": "960:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1993, "indexed": true, "mutability": "mutable", "name": "approved", "nodeType": "VariableDeclaration", "overrides": null, "scope": 1997, "src": "983:24:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1992, "name": "address", "nodeType": "ElementaryTypeName", "src": "983:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1995, "indexed": true, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 1997, "src": "1009:23:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1994, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1009:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "959:74:13" }, "src": "945:89:13" }, { "anonymous": false, "documentation": null, "id": 2005, "name": "ApprovalForAll", "nodeType": "EventDefinition", "parameters": { "id": 2004, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1999, "indexed": true, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2005, "src": "1060:21:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1998, "name": "address", "nodeType": "ElementaryTypeName", "src": "1060:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2001, "indexed": true, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2005, "src": "1083:24:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2000, "name": "address", "nodeType": "ElementaryTypeName", "src": "1083:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2003, "indexed": false, "mutability": "mutable", "name": "approved", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2005, "src": "1109:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2002, "name": "bool", "nodeType": "ElementaryTypeName", "src": "1109:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "1059:64:13" }, "src": "1039:85:13" } ], "scope": 4171, "src": "796:1173:13" }, { "abstract": true, "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": { "id": 2007, "nodeType": "StructuredDocumentation", "src": "2032:160:13", "text": " @title MockERC721 token receiver interface\n @dev Interface for any contract that wants to support safeTransfers\n from MockERC721 asset contracts." }, "fullyImplemented": false, "id": 2022, "linearizedBaseContracts": [ 2022 ], "name": "IMockERC721Receiver", "nodeType": "ContractDefinition", "nodes": [ { "body": null, "documentation": { "id": 2008, "nodeType": "StructuredDocumentation", "src": "2237:862:13", "text": " @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)\"))`" }, "functionSelector": "c9914843", "id": 2021, "implemented": false, "kind": "function", "modifiers": [], "name": "onMockERC721Received", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2017, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2010, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2021, "src": "3134:16:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2009, "name": "address", "nodeType": "ElementaryTypeName", "src": "3134:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2012, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2021, "src": "3152:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2011, "name": "address", "nodeType": "ElementaryTypeName", "src": "3152:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2014, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2021, "src": "3166:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2013, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3166:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2016, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2021, "src": "3183:17:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 2015, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3183:5:13", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "3133:68:13" }, "returnParameters": { "id": 2020, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2019, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2021, "src": "3230:6:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 2018, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "3230:6:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" } ], "src": "3229:8:13" }, "scope": 2022, "src": "3104:134:13", "stateMutability": "nonpayable", "virtual": true, "visibility": "public" } ], "scope": 4171, "src": "2193:1047:13" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 2023, "nodeType": "StructuredDocumentation", "src": "3280:99:13", "text": " @title SafeMath\n @dev Unsigned math operations with safety checks that revert on error" }, "fullyImplemented": true, "id": 2154, "linearizedBaseContracts": [ 2154 ], "name": "SafeMath", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 2056, "nodeType": "Block", "src": "3551:354:13", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 2035, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2033, "name": "a", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2026, "src": "3782:1:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 2034, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3787:1:13", "subdenomination": null, "typeDescriptions": 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"typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "/", "rightExpression": { "argumentTypes": null, "id": 2048, "name": "a", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2026, "src": "3872:1:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3868:5:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2050, "name": "b", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2028, "src": "3877:1:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "3868:10:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2046, "name": "require", 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"StructuredDocumentation", "src": "3403:76:13", "text": " @dev Multiplies two unsigned integers, reverts on overflow." }, "id": 2057, "implemented": true, "kind": "function", "modifiers": [], "name": "mul", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2029, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2026, "mutability": "mutable", "name": "a", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2057, "src": "3497:9:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2025, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3497:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2028, "mutability": "mutable", "name": "b", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2057, "src": "3508:9:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2027, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3508:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3496:22:13" }, "returnParameters": { "id": 2032, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2031, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2057, "src": "3542:7:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2030, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3542:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3541:9:13" }, "scope": 2154, "src": "3484:421:13", "stateMutability": "pure", "virtual": false, "visibility": "internal" }, { "body": { "id": 2081, "nodeType": "Block", "src": "4100:229:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 2070, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2068, "name": "b", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2062, "src": "4184:1:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 2069, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4188:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "4184:5:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2067, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "4176:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2071, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4176:14:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2072, "nodeType": "ExpressionStatement", "src": "4176:14:13" }, { "assignments": [ 2074 ], "declarations": [ { "constant": false, 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division by zero." }, "id": 2082, "implemented": true, "kind": "function", "modifiers": [], "name": "div", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2063, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2060, "mutability": "mutable", "name": "a", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2082, "src": "4046:9:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2059, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4046:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2062, "mutability": "mutable", "name": "b", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2082, "src": "4057:9:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { 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"typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 2213, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "7265:6:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" } ], "src": "7264:20:13" }, "returnParameters": { "id": 2216, "nodeType": "ParameterList", "parameters": [], "src": "7294:0:13" }, "scope": 2235, "src": "7237:158:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "constant": false, "id": 2234, "mutability": "mutable", "name": "______gap", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2235, "src": "7401:29:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage", "typeString": "uint256[50]" }, "typeName": { "baseType": { "id": 2231, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7401:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2233, "length": { "argumentTypes": null, "hexValue": "3530", "id": 2232, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "7409:2:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_50_by_1", "typeString": "int_const 50" }, "value": "50" }, "nodeType": "ArrayTypeName", "src": "7401:11:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage_ptr", "typeString": "uint256[50]" } }, "value": null, "visibility": "private" } ], "scope": 4171, "src": "6357:1076:13" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 2237, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 74, "src": "7661:13:13", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$74", "typeString": "contract Initializable" } }, "id": 2238, "nodeType": "InheritanceSpecifier", "src": "7661:13:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 2239, "name": "ERC165", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2235, "src": "7676:6:13", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC165_$2235", "typeString": "contract ERC165" } }, "id": 2240, "nodeType": "InheritanceSpecifier", "src": "7676:6:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 2241, "name": "IMockERC721", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2006, "src": "7684:11:13", "typeDescriptions": { "typeIdentifier": "t_contract$_IMockERC721_$2006", "typeString": "contract IMockERC721" } }, "id": 2242, "nodeType": "InheritanceSpecifier", "src": "7684:11:13" } ], "contractDependencies": [ 74, 1976, 2006, 2235 ], "contractKind": "contract", "documentation": { "id": 2236, "nodeType": "StructuredDocumentation", "src": "7487:150:13", "text": " @title MockERC721 Non-Fungible Token Standard basic implementation\n @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md" }, "fullyImplemented": true, "id": 2838, "linearizedBaseContracts": [ 2838, 2006, 2235, 1976, 74 ], "name": "MockERC721", "nodeType": "ContractDefinition", "nodes": [ { "id": 2245, "libraryName": { "contractScope": null, "id": 2243, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2154, "src": "7708:8:13", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$2154", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "7702:27:13", "typeName": { "id": 2244, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7721:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "id": 2248, "libraryName": { "contractScope": null, "id": 2246, "name": "Address", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2173, "src": "7740:7:13", "typeDescriptions": { "typeIdentifier": 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false, "nodeType": "Literal", "src": "7997:10:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_353073666_by_1", "typeString": "int_const 353073666" }, "value": "0x150b7a02" }, "visibility": "private" }, { "constant": false, "id": 2255, "mutability": "mutable", "name": "_tokenOwner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2838, "src": "8052:48:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "typeName": { "id": 2254, "keyType": { "id": 2252, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8061:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "8052:28:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "valueType": { "id": 2253, "name": "address", "nodeType": "ElementaryTypeName", "src": "8072:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, "value": null, "visibility": "private" }, { "constant": false, "id": 2259, "mutability": "mutable", "name": "_tokenApprovals", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2838, "src": "8156:52:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "typeName": { "id": 2258, "keyType": { "id": 2256, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8165:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Mapping", "src": "8156:28:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" }, "valueType": { "id": 2257, "name": "address", 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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" }, "functionSelector": "6352211e", "id": 2345, "implemented": true, "kind": "function", "modifiers": [], "name": "ownerOf", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2323, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2322, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2345, "src": "10112:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2321, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "10112:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "10111:17:13" }, 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false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "10846:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2368, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2354, "src": "10860:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "10846:19:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2371, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2354, "src": "10886:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": 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false, "names": [], "nodeType": "FunctionCall", "src": "10838:67:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2377, "nodeType": "ExpressionStatement", "src": "10838:67:13" }, { "expression": { "argumentTypes": null, "id": 2382, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2378, "name": "_tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2259, "src": "10916:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2380, "indexExpression": { "argumentTypes": null, "id": 2379, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2350, "src": "10932:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": 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}, { "argumentTypes": null, "id": 2386, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2348, "src": "10976:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2387, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2350, "src": "10980:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2384, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1997, "src": "10960:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2388, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10960:28:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2389, "nodeType": "EmitStatement", "src": "10955:33:13" } ] }, "documentation": { "id": 2346, "nodeType": "StructuredDocumentation", "src": "10278:410:13", "text": " @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" }, "functionSelector": "aec6e4ea", "id": 2391, "implemented": true, "kind": "function", "modifiers": [], "name": "approveMockERC721", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2351, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2348, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2391, "src": "10720:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2347, "name": "address", "nodeType": "ElementaryTypeName", "src": "10720:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2350, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2391, "src": "10732:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2349, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "10732:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "10719:29:13" }, "returnParameters": { "id": 2352, "nodeType": "ParameterList", "parameters": [], "src": "10756:0:13" }, "scope": 2838, "src": "10693:302:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "body": { "id": 2409, "nodeType": "Block", "src": "11349:83:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2401, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2394, "src": "11375:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2400, "name": "_exists", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2552, "src": "11367:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view returns (bool)" } }, "id": 2402, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11367:16:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2399, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "11359:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2403, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11359:25:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2404, "nodeType": "ExpressionStatement", "src": "11359:25:13" }, { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2405, "name": "_tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2259, "src": "11401:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2407, "indexExpression": { "argumentTypes": null, "id": 2406, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2394, "src": "11417:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "11401:24:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "functionReturnParameters": 2398, "id": 2408, "nodeType": "Return", "src": "11394:31:13" } ] }, "documentation": { "id": 2392, "nodeType": "StructuredDocumentation", "src": "11001:274:13", "text": " @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" }, "functionSelector": "081812fc", "id": 2410, "implemented": true, "kind": "function", "modifiers": [], "name": "getApproved", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2395, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2394, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2410, "src": "11301:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2393, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "11301:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "11300:17:13" }, "returnParameters": { "id": 2398, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2397, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2410, "src": "11340:7:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2396, "name": "address", "nodeType": "ElementaryTypeName", "src": "11340:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "11339:9:13" }, "scope": 2838, "src": "11280:152:13", "stateMutability": "view", "virtual": false, "visibility": "public" }, { "body": { "id": 2441, "nodeType": "Block", "src": "11795:152:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2422, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2419, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2413, "src": "11813:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2420, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "11819:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2421, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "11819:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "11813:16:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2418, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "11805:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2423, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11805:25:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2424, "nodeType": "ExpressionStatement", "src": "11805:25:13" }, { "expression": { "argumentTypes": null, "id": 2432, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2425, "name": "_operatorApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2269, "src": "11840:18:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" } }, "id": 2429, "indexExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2426, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "11859:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2427, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "11859:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "11840:30:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 2430, "indexExpression": { "argumentTypes": null, "id": 2428, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2413, "src": "11871:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "11840:34:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 2431, "name": "approved", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2415, "src": "11877:8:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "11840:45:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 2433, "nodeType": "ExpressionStatement", "src": "11840:45:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2435, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "11915:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2436, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "11915:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2437, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2413, "src": "11927:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2438, "name": "approved", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2415, "src": "11931:8:13", "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": 2434, "name": "ApprovalForAll", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2005, "src": "11900:14:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_bool_$returns$__$", "typeString": "function (address,address,bool)" } }, "id": 2439, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11900:40:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2440, "nodeType": "EmitStatement", "src": "11895:45:13" } ] }, "documentation": { "id": 2411, "nodeType": "StructuredDocumentation", "src": "11438:281:13", "text": " @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" }, "functionSelector": "da71878c", "id": 2442, "implemented": true, "kind": "function", "modifiers": [], "name": "setApprovalForAllMockERC721", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2416, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2413, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2442, "src": "11761:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2412, "name": "address", "nodeType": "ElementaryTypeName", "src": "11761:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2415, "mutability": "mutable", "name": "approved", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2442, "src": "11773:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2414, "name": "bool", "nodeType": "ElementaryTypeName", "src": "11773:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "11760:27:13" }, "returnParameters": { "id": 2417, "nodeType": "ParameterList", "parameters": [], "src": "11795:0:13" }, "scope": 2838, "src": "11724:223:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "body": { "id": 2458, "nodeType": "Block", "src": "12355:59:13", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2452, "name": "_operatorApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2269, "src": "12372:18:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" } }, "id": 2454, "indexExpression": { "argumentTypes": null, "id": 2453, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2445, "src": "12391:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "12372:25:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 2456, "indexExpression": { "argumentTypes": null, "id": 2455, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2447, "src": "12398:8:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "12372:35:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2451, "id": 2457, "nodeType": "Return", "src": "12365:42:13" } ] }, "documentation": { "id": 2443, "nodeType": "StructuredDocumentation", "src": "11953:310:13", "text": " @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" }, "functionSelector": "e985e9c5", "id": 2459, "implemented": true, "kind": "function", "modifiers": [], "name": "isApprovedForAll", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2448, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2445, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2459, "src": "12294:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2444, "name": "address", "nodeType": "ElementaryTypeName", "src": "12294:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2447, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2459, "src": "12309:16:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2446, "name": "address", "nodeType": "ElementaryTypeName", "src": "12309:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "12293:33:13" }, "returnParameters": { "id": 2451, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2450, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2459, "src": "12349:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2449, "name": "bool", "nodeType": "ElementaryTypeName", "src": "12349:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "12348:6:13" }, "scope": 2838, "src": "12268:146:13", "stateMutability": "view", "virtual": false, "visibility": "public" }, { "body": { "id": 2483, "nodeType": "Block", "src": "12937:118:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { 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"_isApprovedOrOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2585, "src": "12955:18:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) view returns (bool)" } }, "id": 2474, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12955:39:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2469, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "12947:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2475, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12947:48:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2476, "nodeType": "ExpressionStatement", "src": "12947:48:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2478, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2462, "src": "13030:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2479, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2464, "src": "13036:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2480, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2466, "src": "13040:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2477, "name": "_transferFromMockERC721", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2766, "src": "13006:23:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2481, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "13006:42:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2482, "nodeType": "ExpressionStatement", "src": "13006:42:13" } ] }, "documentation": { "id": 2460, "nodeType": "StructuredDocumentation", "src": "12420:422:13", "text": " @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" }, "functionSelector": "630ca90b", "id": 2484, "implemented": true, "kind": "function", "modifiers": [], "name": "transferFromMockERC721", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2467, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2462, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2484, "src": "12879:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2461, "name": "address", "nodeType": "ElementaryTypeName", "src": "12879:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2464, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2484, "src": "12893:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2463, "name": "address", "nodeType": "ElementaryTypeName", "src": "12893:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2466, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2484, "src": "12905:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2465, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "12905:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "12878:43:13" }, "returnParameters": { "id": 2468, "nodeType": "ParameterList", "parameters": [], "src": "12937:0:13" }, "scope": 2838, "src": "12847:208:13", "stateMutability": "nonpayable", "virtual": true, "visibility": "public" }, { "body": { "id": 2501, "nodeType": "Block", "src": "13779:56:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2495, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2487, "src": "13806:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2496, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2489, "src": "13812:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2497, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2491, "src": "13816:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "", "id": 2498, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "13825:2:13", "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": 2494, "name": "safeTransferFrom", "nodeType": "Identifier", "overloadedDeclarations": [ 2502, 2530 ], "referencedDeclaration": 2530, "src": "13789:16:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,uint256,bytes memory)" } }, "id": 2499, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "13789:39:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2500, "nodeType": "ExpressionStatement", "src": "13789:39:13" } ] }, "documentation": { "id": 2485, "nodeType": "StructuredDocumentation", "src": "13061:636:13", "text": " @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" }, "functionSelector": "42842e0e", "id": 2502, "implemented": true, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2492, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2487, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2502, "src": "13728:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2486, "name": "address", "nodeType": "ElementaryTypeName", "src": "13728:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2489, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2502, "src": "13742:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2488, "name": "address", "nodeType": "ElementaryTypeName", "src": "13742:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2491, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2502, "src": "13754:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2490, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "13754:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "13727:43:13" }, "returnParameters": { "id": 2493, "nodeType": "ParameterList", "parameters": [], "src": "13779:0:13" }, "scope": 2838, "src": "13702:133:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "body": { "id": 2529, "nodeType": "Block", "src": "14645:129:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2515, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2505, "src": "14678:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2516, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2507, "src": "14684:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2517, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2509, "src": "14688:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2514, "name": "transferFromMockERC721", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2484, "src": "14655:22:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2518, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14655:41:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2519, "nodeType": "ExpressionStatement", "src": "14655:41:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2522, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2505, "src": "14741:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2523, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2507, "src": "14747:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2524, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2509, "src": "14751:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 2525, "name": "_data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2511, "src": "14760:5:13", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 2521, "name": "_checkOnMockERC721Received", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2807, "src": "14714:26:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bool_$", "typeString": "function (address,address,uint256,bytes memory) returns (bool)" } }, "id": 2526, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14714:52:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2520, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "14706:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2527, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14706:61:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2528, "nodeType": "ExpressionStatement", "src": "14706:61:13" } ] }, "documentation": { "id": 2503, "nodeType": "StructuredDocumentation", "src": "13841:702:13", "text": " @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" }, "functionSelector": "b88d4fde", "id": 2530, "implemented": true, "kind": "function", "modifiers": [], "name": "safeTransferFrom", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2512, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2505, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2530, "src": "14574:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2504, "name": "address", "nodeType": "ElementaryTypeName", "src": "14574:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2507, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2530, "src": "14588:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2506, "name": "address", "nodeType": "ElementaryTypeName", "src": "14588:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2509, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2530, "src": "14600:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2508, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "14600:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2511, "mutability": "mutable", "name": "_data", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2530, "src": "14617:18:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 2510, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "14617:5:13", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "14573:63:13" }, "returnParameters": { "id": 2513, "nodeType": "ParameterList", "parameters": [], "src": "14645:0:13" }, "scope": 2838, "src": "14548:226:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "body": { "id": 2551, "nodeType": "Block", "src": "15026:89:13", "statements": [ { "assignments": [ 2539 ], "declarations": [ { "constant": false, "id": 2539, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2551, "src": "15036:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2538, "name": "address", "nodeType": "ElementaryTypeName", "src": "15036:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 2543, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2540, "name": "_tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2255, "src": "15052:11:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2542, "indexExpression": { "argumentTypes": null, "id": 2541, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2533, "src": "15064:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "15052:20:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "15036:36:13" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2549, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2544, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2539, "src": "15089:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2547, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "15106:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2546, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "15098:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 2545, "name": "address", "nodeType": "ElementaryTypeName", "src": "15098:7:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 2548, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15098:10:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "15089:19:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2537, "id": 2550, "nodeType": "Return", "src": "15082:26:13" } ] }, "documentation": { "id": 2531, "nodeType": "StructuredDocumentation", "src": "14780:178:13", "text": " @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": 2552, "implemented": true, "kind": "function", "modifiers": [], "name": "_exists", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2534, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2533, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2552, "src": "14980:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2532, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "14980:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "14979:17:13" }, "returnParameters": { "id": 2537, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2536, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2552, "src": "15020:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2535, "name": "bool", "nodeType": "ElementaryTypeName", "src": "15020:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "15019:6:13" }, "scope": 2838, "src": "14963:152:13", "stateMutability": "view", "virtual": false, "visibility": "internal" }, { "body": { "id": 2584, "nodeType": "Block", "src": "15569:155:13", "statements": [ { "assignments": [ 2563 ], "declarations": [ { "constant": false, "id": 2563, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2584, "src": "15579:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2562, "name": "address", "nodeType": "ElementaryTypeName", "src": "15579:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 2567, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2565, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2557, "src": "15603:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2564, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2345, "src": "15595:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2566, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15595:16:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "15579:32:13" }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 2581, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bool", "typeString": "bool" }, "id": 2576, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2570, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2568, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2555, "src": "15629:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2569, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2563, "src": "15640:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "15629:16:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2575, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2572, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2557, "src": "15661:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2571, "name": "getApproved", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2410, "src": "15649:11:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2573, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15649:20:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2574, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2555, "src": "15673:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "15649:31:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "15629:51:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "BinaryOperation", "operator": "||", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2578, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2563, "src": "15701:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2579, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2555, "src": "15708:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 2577, "name": "isApprovedForAll", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2459, "src": "15684:16:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_address_$returns$_t_bool_$", "typeString": "function (address,address) view returns (bool)" } }, "id": 2580, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15684:32:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "src": "15629:87:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 2582, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "15628:89:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2561, "id": 2583, "nodeType": "Return", "src": "15621:96:13" } ] }, "documentation": { "id": 2553, "nodeType": "StructuredDocumentation", "src": "15121:352:13", "text": " @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": 2585, "implemented": true, "kind": "function", "modifiers": [], "name": "_isApprovedOrOwner", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2558, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2555, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2585, "src": "15506:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2554, "name": "address", "nodeType": "ElementaryTypeName", "src": "15506:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2557, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2585, "src": "15523:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2556, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "15523:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "15505:34:13" }, "returnParameters": { "id": 2561, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2560, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2585, "src": "15563:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2559, "name": "bool", "nodeType": "ElementaryTypeName", "src": "15563:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "15562:6:13" }, "scope": 2838, "src": "15478:246:13", "stateMutability": "view", "virtual": false, "visibility": "internal" }, { "body": { "id": 2635, "nodeType": "Block", "src": "16031:225:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2599, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2594, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2588, "src": "16049:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2597, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16063:1:13", "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": 2596, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "16055:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 2595, "name": "address", "nodeType": "ElementaryTypeName", "src": "16055:7:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 2598, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16055:10:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "16049:16:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2593, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "16041:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2600, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16041:25:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2601, "nodeType": "ExpressionStatement", "src": "16041:25:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2606, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "16084:17:13", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2604, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2590, "src": "16093:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2603, "name": "_exists", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2552, "src": "16085:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view returns (bool)" } }, "id": 2605, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16085:16:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2602, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "16076:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2607, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16076:26:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2608, "nodeType": "ExpressionStatement", "src": "16076:26:13" }, { "expression": { "argumentTypes": null, "id": 2613, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2609, "name": "_tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2255, "src": "16113:11:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2611, "indexExpression": { "argumentTypes": null, "id": 2610, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2590, "src": "16125:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "16113:20:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 2612, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2588, "src": "16136:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "16113:25:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2614, "nodeType": "ExpressionStatement", "src": "16113:25:13" }, { "expression": { "argumentTypes": null, "id": 2624, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2615, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2263, "src": "16148:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2617, "indexExpression": { "argumentTypes": null, "id": 2616, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2588, "src": "16166:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "16148:21:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 2622, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16198:1:13", "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": 2618, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2263, "src": "16172:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2620, "indexExpression": { "argumentTypes": null, "id": 2619, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2588, "src": "16190:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "16172:21:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2621, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 2132, "src": "16172:25:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 2623, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16172:28:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "16148:52:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2625, "nodeType": "ExpressionStatement", "src": "16148:52:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2629, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16233:1:13", "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": 2628, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "16225:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 2627, "name": "address", "nodeType": "ElementaryTypeName", "src": "16225:7:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 2630, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16225:10:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2631, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2588, "src": "16237:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2632, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2590, "src": "16241:7:13", "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": 2626, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1989, "src": "16216:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2633, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16216:33:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2634, "nodeType": "EmitStatement", "src": "16211:38:13" } ] }, "documentation": { "id": 2586, "nodeType": "StructuredDocumentation", "src": "15730:232:13", "text": " @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" }, "id": 2636, "implemented": true, "kind": "function", "modifiers": [], "name": "_mintMockERC721", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2591, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2588, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2636, "src": "15992:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2587, "name": "address", "nodeType": "ElementaryTypeName", "src": "15992:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2590, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2636, "src": "16004:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2589, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "16004:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "15991:29:13" }, "returnParameters": { "id": 2592, "nodeType": "ParameterList", "parameters": [], "src": "16031:0:13" }, "scope": 2838, "src": "15967:289:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 2685, "nodeType": "Block", "src": "16595:249:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2649, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2646, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2641, "src": "16621:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2645, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2345, "src": "16613:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2647, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16613:16:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2648, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2639, "src": "16633:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "16613:25:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2644, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "16605:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2650, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16605:34:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2651, "nodeType": "ExpressionStatement", "src": "16605:34:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2653, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2641, "src": "16665:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2652, "name": "_clearApproval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2833, "src": "16650:14:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 2654, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16650:23:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2655, "nodeType": "ExpressionStatement", "src": "16650:23:13" }, { "expression": { "argumentTypes": null, "id": 2665, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2656, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2263, "src": "16684:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2658, "indexExpression": { "argumentTypes": null, "id": 2657, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2639, "src": "16702:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "16684:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 2663, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16740:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2659, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2263, "src": "16711:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2661, "indexExpression": { "argumentTypes": null, "id": 2660, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2639, "src": "16729:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "16711:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2662, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2107, "src": "16711:28:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 2664, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16711:31:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "16684:58:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2666, "nodeType": "ExpressionStatement", "src": "16684:58:13" }, { "expression": { "argumentTypes": null, "id": 2674, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2667, "name": "_tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2255, "src": "16752:11:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2669, "indexExpression": { "argumentTypes": null, "id": 2668, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2641, "src": "16764:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "16752:20:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2672, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16783:1:13", "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": 2671, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "16775:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 2670, "name": "address", "nodeType": "ElementaryTypeName", "src": "16775:7:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 2673, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16775:10:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "16752:33:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2675, "nodeType": "ExpressionStatement", "src": "16752:33:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2677, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2639, "src": "16810:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2680, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16825:1:13", "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": 2679, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "16817:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 2678, "name": "address", "nodeType": "ElementaryTypeName", "src": "16817:7:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 2681, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16817:10:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2682, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2641, "src": "16829:7:13", "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": 2676, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1989, "src": "16801:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2683, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16801:36:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2684, "nodeType": "EmitStatement", "src": "16796:41:13" } ] }, "documentation": { "id": 2637, "nodeType": "StructuredDocumentation", "src": "16262:262:13", "text": " @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" }, "id": 2686, "implemented": true, "kind": "function", "modifiers": [], "name": "_burnMockERC721", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2642, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2639, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2686, "src": "16554:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2638, "name": "address", "nodeType": "ElementaryTypeName", "src": "16554:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2641, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2686, "src": "16569:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2640, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "16569:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "16553:32:13" }, "returnParameters": { "id": 2643, "nodeType": "ParameterList", "parameters": [], "src": "16595:0:13" }, "scope": 2838, "src": "16529:315:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 2699, "nodeType": "Block", "src": "17064:59:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2694, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2689, "src": "17098:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2693, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2345, "src": "17090:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2695, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17090:16:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2696, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2689, "src": "17108:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2692, "name": "_burnMockERC721", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2686, "src": "17074:15:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 2697, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17074:42:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2698, "nodeType": "ExpressionStatement", "src": "17074:42:13" } ] }, "documentation": { "id": 2687, "nodeType": "StructuredDocumentation", "src": "16850:168:13", "text": " @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" }, "id": 2700, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2690, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2689, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2700, "src": "17038:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2688, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "17038:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "17037:17:13" }, "returnParameters": { "id": 2691, "nodeType": "ParameterList", "parameters": [], "src": "17064:0:13" }, "scope": 2838, "src": "17023:100:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 2765, "nodeType": "Block", "src": "17583:327:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2715, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2712, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2707, "src": "17609:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2711, "name": "ownerOf", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2345, "src": "17601:7:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view returns (address)" } }, "id": 2713, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17601:16:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2714, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2703, "src": "17621:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "17601:24:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2710, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "17593:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2716, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17593:33:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2717, "nodeType": "ExpressionStatement", "src": "17593:33:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2724, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2719, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2705, "src": "17644:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2722, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "17658:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2721, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "17650:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 2720, "name": "address", "nodeType": "ElementaryTypeName", "src": "17650:7:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 2723, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17650:10:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "17644:16:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 2718, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "17636:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 2725, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17636:25:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2726, "nodeType": "ExpressionStatement", "src": "17636:25:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2728, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2707, "src": "17687:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2727, "name": "_clearApproval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2833, "src": "17672:14:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 2729, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17672:23:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2730, "nodeType": "ExpressionStatement", "src": "17672:23:13" }, { "expression": { "argumentTypes": null, "id": 2740, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2731, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2263, "src": "17706:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2733, "indexExpression": { "argumentTypes": null, "id": 2732, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2703, "src": "17724:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "17706:23:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 2738, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "17760:1:13", "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": 2734, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2263, "src": "17732:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2736, "indexExpression": { "argumentTypes": null, "id": 2735, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2703, "src": "17750:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "17732:23:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2737, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2107, "src": "17732:27:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 2739, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17732:30:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "17706:56:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2741, "nodeType": "ExpressionStatement", "src": "17706:56:13" }, { "expression": { "argumentTypes": null, "id": 2751, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2742, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2263, "src": "17772:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2744, "indexExpression": { "argumentTypes": null, "id": 2743, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2705, "src": "17790:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "17772:21:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 2749, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "17822:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2745, "name": "_ownedTokensCount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2263, "src": "17796:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 2747, "indexExpression": { "argumentTypes": null, "id": 2746, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2705, "src": "17814:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "17796:21:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2748, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 2132, "src": "17796:25:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 2750, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17796:28:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "17772:52:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2752, "nodeType": "ExpressionStatement", "src": "17772:52:13" }, { "expression": { "argumentTypes": null, "id": 2757, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2753, "name": "_tokenOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2255, "src": "17835:11:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2755, "indexExpression": { "argumentTypes": null, "id": 2754, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2707, "src": "17847:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "17835:20:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 2756, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2705, "src": "17858:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "17835:25:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2758, "nodeType": "ExpressionStatement", "src": "17835:25:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2760, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2703, "src": "17885:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2761, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2705, "src": "17891:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2762, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2707, "src": "17895:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2759, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1989, "src": "17876:8:13", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2763, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17876:27:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2764, "nodeType": "EmitStatement", "src": "17871:32:13" } ] }, "documentation": { "id": 2701, "nodeType": "StructuredDocumentation", "src": "17129:363:13", "text": " @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" }, "id": 2766, "implemented": true, "kind": "function", "modifiers": [], "name": "_transferFromMockERC721", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2708, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2703, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2766, "src": "17530:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2702, "name": "address", "nodeType": "ElementaryTypeName", "src": "17530:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2705, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2766, "src": "17544:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2704, "name": "address", "nodeType": "ElementaryTypeName", "src": "17544:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2707, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2766, "src": "17556:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2706, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "17556:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "17529:43:13" }, "returnParameters": { "id": 2709, "nodeType": "ParameterList", "parameters": [], "src": "17583:0:13" }, "scope": 2838, "src": "17497:413:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 2806, "nodeType": "Block", "src": "18572:228:13", "statements": [ { "condition": { "argumentTypes": null, "id": 2783, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "18586:16:13", "subExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 2780, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2771, "src": "18587:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2781, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "isContract", "nodeType": "MemberAccess", "referencedDeclaration": 2172, "src": "18587:13:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$bound_to$_t_address_$", "typeString": "function (address) view returns (bool)" } }, "id": 2782, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18587:15:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 2787, "nodeType": "IfStatement", "src": "18582:58:13", "trueBody": { "id": 2786, "nodeType": "Block", "src": "18604:36:13", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 2784, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "18625:4:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 2779, "id": 2785, "nodeType": "Return", "src": "18618:11:13" } ] } }, { "assignments": [ 2789 ], "declarations": [ { "constant": false, "id": 2789, "mutability": "mutable", "name": "retval", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2806, "src": "18650:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 2788, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "18650:6:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" } ], "id": 2800, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 2794, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -15, "src": "18711:3:13", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 2795, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "18711:10:13", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 2796, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2769, "src": "18723:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2797, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2773, "src": "18729:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 2798, "name": "_data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2775, "src": "18738:5:13", "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": 2791, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2771, "src": "18686:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 2790, "name": "IMockERC721Receiver", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2022, "src": "18666:19:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IMockERC721Receiver_$2022_$", "typeString": "type(contract IMockERC721Receiver)" } }, "id": 2792, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18666:23:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_contract$_IMockERC721Receiver_$2022", "typeString": "contract IMockERC721Receiver" } }, "id": 2793, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "onMockERC721Received", "nodeType": "MemberAccess", "referencedDeclaration": 2021, "src": "18666:44:13", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_bytes4_$", "typeString": "function (address,address,uint256,bytes memory) external returns (bytes4)" } }, "id": 2799, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18666:78:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "VariableDeclarationStatement", "src": "18650:94:13" }, { "expression": { "argumentTypes": null, "components": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "id": 2803, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 2801, "name": "retval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2789, "src": "18762:6:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 2802, "name": "_MockERC721_RECEIVED", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2251, "src": "18772:20:13", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "src": "18762:30:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "id": 2804, "isConstant": false, "isInlineArray": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "TupleExpression", "src": "18761:32:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 2779, "id": 2805, "nodeType": "Return", "src": "18754:39:13" } ] }, "documentation": { "id": 2767, "nodeType": "StructuredDocumentation", "src": "17916:516:13", "text": " @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" }, "id": 2807, "implemented": true, "kind": "function", "modifiers": [], "name": "_checkOnMockERC721Received", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2776, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2769, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2807, "src": "18473:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2768, "name": "address", "nodeType": "ElementaryTypeName", "src": "18473:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2771, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2807, "src": "18487:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2770, "name": "address", "nodeType": "ElementaryTypeName", "src": "18487:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2773, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2807, "src": "18499:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2772, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "18499:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2775, "mutability": "mutable", "name": "_data", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2807, "src": "18516:18:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 2774, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "18516:5:13", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "18472:63:13" }, "returnParameters": { "id": 2779, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2778, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2807, "src": "18562:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 2777, "name": "bool", "nodeType": "ElementaryTypeName", "src": "18562:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "18561:6:13" }, "scope": 2838, "src": "18437:363:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 2832, "nodeType": "Block", "src": "19010:122:13", "statements": [ { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 2820, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2813, "name": "_tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2259, "src": "19024:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2815, "indexExpression": { "argumentTypes": null, "id": 2814, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2810, "src": "19040:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "19024:24:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2818, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "19060:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2817, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "19052:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 2816, "name": "address", "nodeType": "ElementaryTypeName", "src": "19052:7:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 2819, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "19052:10:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "19024:38:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 2831, "nodeType": "IfStatement", "src": "19020:106:13", "trueBody": { "id": 2830, "nodeType": "Block", "src": "19064:62:13", "statements": [ { "expression": { "argumentTypes": null, "id": 2828, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2821, "name": "_tokenApprovals", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2259, "src": "19078:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_address_$", "typeString": "mapping(uint256 => address)" } }, "id": 2823, "indexExpression": { "argumentTypes": null, "id": 2822, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2810, "src": "19094:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "19078:24:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2826, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "19113:1:13", "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": 2825, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "19105:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 2824, "name": "address", "nodeType": "ElementaryTypeName", "src": "19105:7:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 2827, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "19105:10:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "19078:37:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 2829, "nodeType": "ExpressionStatement", "src": "19078:37:13" } ] } } ] }, "documentation": { "id": 2808, "nodeType": "StructuredDocumentation", "src": "18806:150:13", "text": " @dev Private function to clear current approval of a given token ID\n @param tokenId uint256 ID of the token to be transferred" }, "id": 2833, "implemented": true, "kind": "function", "modifiers": [], "name": "_clearApproval", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2811, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2810, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2833, "src": "18985:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2809, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "18985:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "18984:17:13" }, "returnParameters": { "id": 2812, "nodeType": "ParameterList", "parameters": [], "src": "19010:0:13" }, "scope": 2838, "src": "18961:171:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "private" }, { "constant": false, "id": 2837, "mutability": "mutable", "name": "______gap", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2838, "src": "19138:29:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage", "typeString": "uint256[50]" }, "typeName": { "baseType": { "id": 2834, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19138:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2836, "length": { "argumentTypes": null, "hexValue": "3530", "id": 2835, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "19146:2:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_50_by_1", "typeString": "int_const 50" }, "value": "50" }, "nodeType": "ArrayTypeName", "src": "19138:11:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage_ptr", "typeString": "uint256[50]" } }, "value": null, "visibility": "private" } ], "scope": 4171, "src": "7638:11532:13" }, { "abstract": true, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 2840, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 74, "src": "19439:13:13", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$74", "typeString": "contract Initializable" } }, "id": 2841, "nodeType": "InheritanceSpecifier", "src": "19439:13:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 2842, "name": "IMockERC721", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2006, "src": "19454:11:13", "typeDescriptions": { "typeIdentifier": "t_contract$_IMockERC721_$2006", "typeString": "contract IMockERC721" } }, "id": 2843, "nodeType": "InheritanceSpecifier", "src": "19454:11:13" } ], "contractDependencies": [ 74, 1976, 2006 ], "contractKind": "contract", "documentation": { "id": 2839, "nodeType": "StructuredDocumentation", "src": "19237:158:13", "text": " @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": 2865, "linearizedBaseContracts": [ 2865, 2006, 1976, 74 ], "name": "IMockERC721Enumerable", "nodeType": "ContractDefinition", "nodes": [ { "body": null, "documentation": null, "functionSelector": "18160ddd", "id": 2848, "implemented": false, "kind": "function", "modifiers": [], "name": "totalSupply", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2844, "nodeType": "ParameterList", "parameters": [], "src": "19492:2:13" }, "returnParameters": { "id": 2847, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2846, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2848, "src": "19524:7:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2845, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19524:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19523:9:13" }, "scope": 2865, "src": "19472:61:13", "stateMutability": "view", "virtual": true, "visibility": "public" }, { "body": null, "documentation": null, "functionSelector": "2f745c59", "id": 2857, "implemented": false, "kind": "function", "modifiers": [], "name": "tokenOfOwnerByIndex", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2853, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2850, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2857, "src": "19567:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2849, "name": "address", "nodeType": "ElementaryTypeName", "src": "19567:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2852, "mutability": "mutable", "name": "index", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2857, "src": "19582:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2851, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19582:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19566:30:13" }, "returnParameters": { "id": 2856, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2855, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2857, "src": "19626:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2854, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19626:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19625:17:13" }, "scope": 2865, "src": "19538:105:13", "stateMutability": "view", "virtual": true, "visibility": "public" }, { "body": null, "documentation": null, "functionSelector": "4f6ccce7", "id": 2864, "implemented": false, "kind": "function", "modifiers": [], "name": "tokenByIndex", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2860, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2859, "mutability": "mutable", "name": "index", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2864, "src": "19671:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2858, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19671:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19670:15:13" }, "returnParameters": { "id": 2863, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2862, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 2864, "src": "19715:7:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2861, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "19715:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "19714:9:13" }, "scope": 2865, "src": "19649:75:13", "stateMutability": "view", "virtual": true, "visibility": "public" } ], "scope": 4171, "src": "19396:330:13" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 2867, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 74, "src": "19987:13:13", 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3229, "src": "20103:50:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[])" }, "typeName": { "id": 2878, "keyType": { "id": 2875, "name": "address", "nodeType": "ElementaryTypeName", "src": "20111:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "20103:29:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[])" }, "valueType": { "baseType": { "id": 2876, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "20122:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2877, "length": null, "nodeType": "ArrayTypeName", "src": "20122:9:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": 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"name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -25, "src": "23033:5:13", "typeDescriptions": { "typeIdentifier": "t_super$_MockERC721Enumerable_$3229", "typeString": "contract super MockERC721Enumerable" } }, "id": 2990, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_transferFromMockERC721", "nodeType": "MemberAccess", "referencedDeclaration": 2766, "src": "23033:29:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 2994, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23033:48:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2995, "nodeType": "ExpressionStatement", "src": "23033:48:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2997, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2981, "src": "23125:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2998, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2985, "src": "23131:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 2996, "name": "_removeTokenFromOwnerEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3180, "src": "23092:32:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 2999, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23092:47:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3000, "nodeType": "ExpressionStatement", "src": "23092:47:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3002, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2983, "src": "23178:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3003, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2985, "src": "23182:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3001, "name": "_addTokenToOwnerEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3102, "src": "23150:27:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3004, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23150:40:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3005, "nodeType": "ExpressionStatement", "src": "23150:40:13" } ] }, "documentation": { "id": 2979, "nodeType": "StructuredDocumentation", "src": "22579:363:13", "text": " @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" }, "id": 3007, "implemented": true, "kind": "function", "modifiers": [], "name": "_transferFrom", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 2986, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2981, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3007, "src": "22970:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2980, "name": "address", "nodeType": "ElementaryTypeName", "src": "22970:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2983, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3007, "src": "22984:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2982, "name": "address", "nodeType": "ElementaryTypeName", "src": "22984:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2985, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3007, "src": "22996:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2984, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "22996:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "22969:43:13" }, "returnParameters": { "id": 2987, "nodeType": "ParameterList", "parameters": [], "src": "23023:0:13" }, "scope": 3229, "src": "22947:250:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 3031, "nodeType": "Block", "src": "23513:153:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3018, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3010, "src": "23545:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3019, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3012, "src": "23549:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3015, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -25, "src": "23523:5:13", "typeDescriptions": { "typeIdentifier": "t_super$_MockERC721Enumerable_$3229", "typeString": "contract super MockERC721Enumerable" } }, "id": 3017, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_mintMockERC721", "nodeType": "MemberAccess", "referencedDeclaration": 2636, "src": "23523:21:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3020, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23523:34:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3021, "nodeType": "ExpressionStatement", "src": "23523:34:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3023, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3010, "src": "23596:2:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3024, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3012, "src": "23600:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3022, "name": "_addTokenToOwnerEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3102, "src": "23568:27:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3025, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23568:40:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3026, "nodeType": "ExpressionStatement", "src": "23568:40:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3028, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3012, "src": "23651:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3027, "name": "_addTokenToAllTokensEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3122, "src": "23619:31:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 3029, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "23619:40:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3030, "nodeType": "ExpressionStatement", "src": "23619:40:13" } ] }, "documentation": { "id": 3008, "nodeType": "StructuredDocumentation", "src": "23203:244:13", "text": " @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" }, "id": 3032, "implemented": true, "kind": "function", "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 3013, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3010, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3032, "src": "23467:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3009, "name": "address", "nodeType": "ElementaryTypeName", "src": "23467:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3012, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3032, "src": "23479:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3011, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "23479:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "23466:29:13" }, "returnParameters": { "id": 3014, "nodeType": "ParameterList", "parameters": [], "src": "23513:0:13" }, "scope": 3229, "src": "23452:214:13", "stateMutability": "nonpayable", "virtual": true, "visibility": "internal" }, { "body": { "id": 3062, "nodeType": "Block", "src": "24002:318:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3043, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3035, "src": "24034:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3044, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3037, "src": "24041:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3040, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -25, "src": "24012:5:13", "typeDescriptions": { "typeIdentifier": "t_super$_MockERC721Enumerable_$3229", "typeString": "contract super MockERC721Enumerable" } }, "id": 3042, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_burnMockERC721", "nodeType": "MemberAccess", "referencedDeclaration": 2686, "src": "24012:21:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3045, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "24012:37:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3046, "nodeType": "ExpressionStatement", "src": "24012:37:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3048, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3035, "src": "24093:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3049, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3037, "src": "24100:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3047, "name": "_removeTokenFromOwnerEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3180, "src": "24060:32:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3050, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "24060:48:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3051, "nodeType": "ExpressionStatement", "src": "24060:48:13" }, { "expression": { "argumentTypes": null, "id": 3056, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3052, "name": "_ownedTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2883, "src": "24227:17:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 3054, "indexExpression": { "argumentTypes": null, "id": 3053, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3037, "src": "24245:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "24227:26:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "30", "id": 3055, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "24256:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "24227:30:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3057, "nodeType": "ExpressionStatement", "src": "24227:30:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3059, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3037, "src": "24305:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3058, "name": "_removeTokenFromAllTokensEnumeration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3224, "src": "24268:36:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 3060, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "24268:45:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3061, "nodeType": "ExpressionStatement", "src": "24268:45:13" } ] }, "documentation": { "id": 3033, "nodeType": "StructuredDocumentation", "src": "23672:261:13", "text": " @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" }, "id": 3063, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 3038, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3035, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3063, "src": "23953:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3034, "name": "address", "nodeType": "ElementaryTypeName", "src": "23953:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3037, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3063, "src": "23968:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3036, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "23968:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "23952:32:13" }, "returnParameters": { "id": 3039, "nodeType": "ParameterList", "parameters": [], "src": "24002:0:13" }, "scope": 3229, "src": "23938:382:13", "stateMutability": "nonpayable", "virtual": true, "visibility": "internal" }, { "body": { "id": 3076, "nodeType": "Block", "src": "24605:43:13", "statements": [ { "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3072, "name": "_ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2879, "src": "24622:12:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 3074, "indexExpression": { "argumentTypes": null, "id": 3073, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3066, "src": "24635:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "24622:19:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "functionReturnParameters": 3071, "id": 3075, "nodeType": "Return", "src": "24615:26:13" } ] }, "documentation": { "id": 3064, "nodeType": "StructuredDocumentation", "src": "24326:193:13", "text": " @dev Gets the list of token IDs of the requested owner\n @param owner address owning the tokens\n @return uint256[] List of token IDs owned by the requested address" }, "id": 3077, "implemented": true, "kind": "function", "modifiers": [], "name": "_tokensOfOwner", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 3067, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3066, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3077, "src": "24548:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3065, "name": "address", "nodeType": "ElementaryTypeName", "src": "24548:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "24547:15:13" }, "returnParameters": { "id": 3071, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3070, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3077, "src": "24586:17:13", "stateVariable": false, "storageLocation": "storage", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": "uint256[]" }, "typeName": { "baseType": { "id": 3068, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "24586:7:13", "typeDescriptions": { "typeIdentifier": 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"nodeType": "StructuredDocumentation", "src": "24654:283:13", "text": " @dev Private function to add a token to this extension's ownership-tracking data structures.\n @param to address representing the new owner of the given token ID\n @param tokenId uint256 ID of the token to be added to the tokens list of the given address" }, "id": 3102, "implemented": true, "kind": "function", "modifiers": [], "name": "_addTokenToOwnerEnumeration", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 3083, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3080, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3102, "src": "24979:10:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3079, "name": "address", "nodeType": "ElementaryTypeName", "src": "24979:7:13", "stateMutability": "nonpayable", 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"argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3173, "name": "_ownedTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2879, "src": "27020:12:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_array$_t_uint256_$dyn_storage_$", "typeString": "mapping(address => uint256[] storage ref)" } }, "id": 3175, "indexExpression": { "argumentTypes": null, "id": 3174, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3125, "src": "27033:4:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "27020:18:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3176, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "pop", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "27020:22:13", "typeDescriptions": { "typeIdentifier": "t_function_arraypop_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 3177, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "27020:24:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3178, "nodeType": "ExpressionStatement", "src": "27020:24:13" } ] }, "documentation": { "id": 3123, "nodeType": "StructuredDocumentation", "src": "25487:604:13", "text": " @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" }, "id": 3180, "implemented": true, "kind": "function", "modifiers": [], "name": "_removeTokenFromOwnerEnumeration", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 3128, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3125, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3180, "src": "26138:12:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3124, "name": "address", "nodeType": "ElementaryTypeName", "src": "26138:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3127, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3180, "src": "26152:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3126, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "26152:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "26137:31:13" }, "returnParameters": { "id": 3129, "nodeType": "ParameterList", "parameters": [], "src": "26177:0:13" }, "scope": 3229, "src": "26096:1163:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "private" }, { "body": { "id": 3223, "nodeType": "Block", "src": "27618:992:13", "statements": [ { "assignments": [ 3187 ], "declarations": [ { "constant": false, "id": 3187, "mutability": "mutable", "name": "lastTokenIndex", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3223, "src": "27796:22:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3186, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "27796:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3193, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31", "id": 3191, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "27843:1:13", "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": 3188, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2886, "src": "27821:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3189, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "27821:17:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3190, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2107, "src": "27821:21:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 3192, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "27821:24:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "27796:49:13" }, { "assignments": [ 3195 ], "declarations": [ { "constant": false, "id": 3195, "mutability": "mutable", "name": "tokenIndex", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3223, "src": "27855:18:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3194, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "27855:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3199, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3196, "name": "_allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2890, "src": "27876:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 3198, "indexExpression": { "argumentTypes": null, "id": 3197, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3183, "src": "27892:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "27876:24:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "27855:45:13" }, { "assignments": [ 3201 ], "declarations": [ { "constant": false, "id": 3201, "mutability": "mutable", "name": "lastTokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3223, "src": "28222:19:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3200, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "28222:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3205, "initialValue": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3202, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2886, "src": "28244:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3204, "indexExpression": { "argumentTypes": null, "id": 3203, "name": "lastTokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3187, "src": "28255:14:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "28244:26:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "28222:48:13" }, { "expression": { "argumentTypes": null, "id": 3210, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3206, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2886, "src": 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"t_uint256", "typeString": "uint256" } }, "id": 3211, "nodeType": "ExpressionStatement", "src": "28281:36:13" }, { "expression": { "argumentTypes": null, "id": 3216, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3212, "name": "_allTokensIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2890, "src": "28385:15:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_uint256_$", "typeString": "mapping(uint256 => uint256)" } }, "id": 3214, "indexExpression": { "argumentTypes": null, "id": 3213, "name": "lastTokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3201, "src": "28401:11:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "28385:28:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3215, "name": "tokenIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3195, "src": "28416:10:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "28385:41:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3217, "nodeType": "ExpressionStatement", "src": "28385:41:13" }, { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 3218, "name": "_allTokens", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2886, "src": "28547:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 3220, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "pop", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "28547:14:13", "typeDescriptions": { "typeIdentifier": "t_function_arraypop_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 3221, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "28547:16:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3222, "nodeType": "ExpressionStatement", "src": "28547:16:13" } ] }, "documentation": { "id": 3181, "nodeType": "StructuredDocumentation", "src": "27265:277:13", "text": " @dev Private function to remove a token from this extension's token tracking data structures.\n This has O(1) time complexity, but alters the order of the _allTokens array.\n @param tokenId uint256 ID of the token to be removed from the tokens list" }, "id": 3224, "implemented": true, "kind": "function", "modifiers": [], "name": "_removeTokenFromAllTokensEnumeration", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 3184, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3183, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3224, "src": "27593:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3182, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "27593:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "27592:17:13" }, "returnParameters": { "id": 3185, "nodeType": "ParameterList", "parameters": [], "src": "27618:0:13" }, "scope": 3229, "src": "27547:1063:13", "stateMutability": "nonpayable", 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"t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 3366, "indexExpression": { "argumentTypes": null, "id": 3365, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3353, "src": "31415:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "31404:19:13", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3367, "name": "uri", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3355, "src": "31426:3:13", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "31404:25:13", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 3369, "nodeType": "ExpressionStatement", "src": "31404:25:13" } ] }, "documentation": { "id": 3351, "nodeType": "StructuredDocumentation", "src": "31061:226:13", "text": " @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" }, "id": 3371, "implemented": true, "kind": "function", "modifiers": [], "name": "_setTokenURI", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 3356, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3353, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3371, "src": "31314:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3352, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "31314:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3355, "mutability": "mutable", "name": "uri", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3371, "src": "31331:17:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 3354, "name": "string", "nodeType": "ElementaryTypeName", "src": "31331:6:13", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "31313:36:13" }, "returnParameters": { "id": 3357, "nodeType": "ParameterList", "parameters": [], "src": "31359:0:13" }, "scope": 3408, "src": "31292:144:13", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 3402, "nodeType": "Block", "src": "31790:194:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3382, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3374, "src": "31822:5:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3383, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3376, "src": "31829:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 3379, "name": "super", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -25, "src": "31800:5:13", "typeDescriptions": { "typeIdentifier": "t_super$_MockERC721Metadata_$3408", "typeString": "contract super MockERC721Metadata" } }, "id": 3381, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "_burnMockERC721", "nodeType": "MemberAccess", "referencedDeclaration": 2686, "src": "31800:21:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256)" } }, "id": 3384, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "31800:37:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3385, "nodeType": "ExpressionStatement", "src": "31800:37:13" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3394, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3388, "name": "_tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3268, "src": "31893:10:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 3390, "indexExpression": { "argumentTypes": null, "id": 3389, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3376, "src": "31904:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "31893:19:13", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } ], "id": 3387, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "31887:5:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_bytes_storage_ptr_$", "typeString": "type(bytes storage pointer)" }, "typeName": { "id": 3386, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "31887:5:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 3391, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "31887:26:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes storage pointer" } }, "id": 3392, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "31887:33:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 3393, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "31924:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "31887:38:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 3401, "nodeType": "IfStatement", "src": "31883:95:13", "trueBody": { "id": 3400, "nodeType": "Block", "src": "31927:51:13", "statements": [ { "expression": { "argumentTypes": null, "id": 3398, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "delete", "prefix": true, "src": "31941:26:13", "subExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3395, "name": "_tokenURIs", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3268, "src": "31948:10:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_uint256_$_t_string_storage_$", "typeString": "mapping(uint256 => string storage ref)" } }, "id": 3397, "indexExpression": { "argumentTypes": null, "id": 3396, "name": "tokenId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3376, "src": "31959:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "31948:19:13", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3399, "nodeType": "ExpressionStatement", "src": "31941:26:13" } ] } } ] }, "documentation": { "id": 3372, "nodeType": "StructuredDocumentation", "src": "31442:279:13", "text": " @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" }, "id": 3403, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 3377, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3374, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3403, "src": "31741:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3373, "name": "address", "nodeType": "ElementaryTypeName", "src": "31741:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3376, "mutability": "mutable", "name": "tokenId", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3403, "src": "31756:15:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3375, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "31756:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "31740:32:13" }, "returnParameters": { "id": 3378, "nodeType": "ParameterList", "parameters": [], "src": "31790:0:13" }, "scope": 3408, "src": "31726:258:13", "stateMutability": "nonpayable", "virtual": true, "visibility": "internal" }, { "constant": false, "id": 3407, "mutability": "mutable", "name": "______gap", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3408, "src": "31990:29:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage", "typeString": "uint256[50]" }, "typeName": { "baseType": { "id": 3404, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "31990:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3406, "length": { "argumentTypes": null, "hexValue": "3530", "id": 3405, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "31998:2:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_50_by_1", "typeString": "int_const 50" }, "value": "50" }, "nodeType": "ArrayTypeName", "src": "31990:11:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$50_storage_ptr", "typeString": "uint256[50]" } }, "value": null, "visibility": "private" } ], "scope": 4171, "src": "29228:2794:13" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 3409, "nodeType": "StructuredDocumentation", "src": "32061:82:13", "text": " @title Roles\n @dev Library for managing addresses assigned to a Role." }, "fullyImplemented": true, "id": 3507, "linearizedBaseContracts": [ 3507 ], "name": "Roles", "nodeType": "ContractDefinition", "nodes": [ { "canonicalName": "Roles.Role", "id": 3414, "members": [ { "constant": false, "id": 3413, "mutability": "mutable", "name": "bearer", "nodeType": "VariableDeclaration", "overrides": null, "scope": 3414, "src": "32186:32:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "typeName": { "id": 3412, "keyType": { "id": 3410, "name": "address", "nodeType": "ElementaryTypeName", "src": "32195:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "32186:25:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "valueType": { "id": 3411, "name": "bool", "nodeType": "ElementaryTypeName", "src": "32206:4:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } }, "value": null, "visibility": "internal" } ], "name": "Role", "nodeType": "StructDefinition", "scope": 3507, "src": "32164:61:13", "visibility": "public" }, { "body": { "id": 3447, "nodeType": "Block", "src": "32353:123:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 3428, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 3423, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3419, "src": "32371:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3426, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "32390:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 3425, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "32382:7:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 3424, "name": "address", "nodeType": "ElementaryTypeName", "src": "32382:7:13", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 3427, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "32382:10:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "32371:21:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3422, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "32363:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3429, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "32363:30:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3430, "nodeType": "ExpressionStatement", "src": "32363:30:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3436, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "32411:19:13", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3433, "name": "role", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3417, "src": "32416:4:13", "typeDescriptions": { "typeIdentifier": "t_struct$_Role_$3414_storage_ptr", "typeString": "struct Roles.Role storage pointer" } }, { "argumentTypes": null, "id": 3434, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3419, "src": "32422:7:13", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_struct$_Role_$3414_storage_ptr", "typeString": "struct Roles.Role storage pointer" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 3432, "name": "has", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3506, "src": "32412:3:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_struct$_Role_$3414_storage_ptr_$_t_address_$returns$_t_bool_$", "typeString": "function (struct Roles.Role storage pointer,address) view returns (bool)" } }, "id": 3435, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "32412:18:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3431, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "32403:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3437, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "32403:28:13", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3438, "nodeType": "ExpressionStatement", "src": "32403:28:13" }, { "expression": { "argumentTypes": null, "id": 3445, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 3439, "name": "role", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3417, "src": "32442:4:13", "typeDescriptions": { "typeIdentifier": "t_struct$_Role_$3414_storage_ptr", "typeString": "struct Roles.Role storage pointer" } }, "id": 3442, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "bearer", "nodeType": "MemberAccess", "referencedDeclaration": 3413, "src": "32442:11:13", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 3443, "indexExpression": { "argumentTypes": null, "id": 3441, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3419, "src": "32454:7:13", "typeDescriptions": { "typeIdentifier": 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