gotake-contracts/artifacts/build-info/82800a6ed8918888e7280352cfd7d219.json

TypeChain generated types and ABIs for GoTake contracts

{"id":"82800a6ed8918888e7280352cfd7d219","_format":"hh-sol-build-info-1","solcVersion":"0.8.28","solcLongVersion":"0.8.28+commit.7893614a","input":{"language":"Solidity","sources":{"@openzeppelin/contracts/access/Ownable.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)\n\npragma solidity ^0.8.20;\n\nimport {Context} from \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * The initial owner is set to the address provided by the deployer. This can\n * later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    /**\n     * @dev The caller account is not authorized to perform an operation.\n     */\n    error OwnableUnauthorizedAccount(address account);\n\n    /**\n     * @dev The owner is not a valid owner account. (eg. `address(0)`)\n     */\n    error OwnableInvalidOwner(address owner);\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.\n     */\n    constructor(address initialOwner) {\n        if (initialOwner == address(0)) {\n            revert OwnableInvalidOwner(address(0));\n        }\n        _transferOwnership(initialOwner);\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        if (owner() != _msgSender()) {\n            revert OwnableUnauthorizedAccount(_msgSender());\n        }\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby disabling any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        if (newOwner == address(0)) {\n            revert OwnableInvalidOwner(address(0));\n        }\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n}\n"},"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.20;\n\nimport {IERC20} from \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC-20 standard.\n */\ninterface IERC20Metadata is IERC20 {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"},"@openzeppelin/contracts/token/ERC20/IERC20.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Interface of the ERC-20 standard as defined in the ERC.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the value of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the value of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves a `value` amount of tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 value) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the\n     * caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 value) external returns (bool);\n\n    /**\n     * @dev Moves a `value` amount of tokens from `from` to `to` using the\n     * allowance mechanism. `value` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 value) external returns (bool);\n}\n"},"@openzeppelin/contracts/utils/Context.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n\n    function _contextSuffixLength() internal view virtual returns (uint256) {\n        return 0;\n    }\n}\n"},"contracts/TokenPurchase.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity ^0.8.22;\n\nimport {Ownable} from \"@openzeppelin/contracts/access/Ownable.sol\";\nimport {IERC20} from \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport {IERC20Metadata} from \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\n\n/**\n * @title TokenPurchase\n * @dev Contract providing purchase functionality for tokens with price set by admin\n */\ncontract TokenPurchase is Ownable {\n    IERC20Metadata public token; // Token contract interface to be sold\n    IERC20Metadata public paymentToken; // Token used for payment (if address(0), then native currency is used)\n    uint256 public currentPrice; // Current price (in 10**18 format, 1 = 10**18)\n    address public paymentReceiver; // Address to receive payments\n    uint256 public minPurchaseAmount; // Minimum token amount that can be purchased\n\n    // Price update event\n    event PriceUpdated(uint256 newPrice);\n    // Token purchase event\n    event TokensPurchased(\n        address indexed buyer,\n        uint256 amount,\n        uint256 totalCost\n    );\n    // Minimum purchase amount update event\n    event MinPurchaseAmountUpdated(uint256 newMinAmount);\n\n    /**\n     * @dev Constructor\n     * @param _initialOwner Initial admin address\n     * @param _initialPaymentReceiver Initial payment receiver address\n     * @param _token Token to be sold (can be address(0) to set later)\n     * @param _paymentToken Token used for payment (address(0) for native currency)\n     * @param _initialPrice Initial price (can be 0 to set later)\n     */\n    constructor(\n        address _initialOwner,\n        address _initialPaymentReceiver,\n        address _token,\n        address _paymentToken,\n        uint256 _initialPrice\n    ) Ownable(_initialOwner) {\n        require(\n            _initialPaymentReceiver != address(0),\n            \"TokenPurchase: Payment receiver cannot be zero address\"\n        );\n        paymentReceiver = _initialPaymentReceiver;\n\n        // Set token to be sold if provided\n        if (_token != address(0)) {\n            token = IERC20Metadata(_token);\n        }\n\n        // Set payment token if provided (address(0) means use native currency)\n        if (_paymentToken != address(0)) {\n            paymentToken = IERC20Metadata(_paymentToken);\n        }\n\n        // Set initial price if provided\n        if (_initialPrice > 0) {\n            currentPrice = _initialPrice;\n            emit PriceUpdated(_initialPrice);\n        }\n\n        // Default minimum purchase amount set to 0\n        minPurchaseAmount = 0;\n    }\n\n    /**\n     * @dev Set token contract address\n     * @param _token New token address\n     */\n    function setToken(address _token) external onlyOwner {\n        require(\n            _token != address(0),\n            \"TokenPurchase: Token cannot be zero address\"\n        );\n        token = IERC20Metadata(_token);\n    }\n\n    /**\n     * @dev Set payment token address\n     * @param _paymentToken New payment token address (address(0) for native currency)\n     */\n    function setPaymentToken(address _paymentToken) external onlyOwner {\n        // address(0) is allowed for native currency\n        if (_paymentToken != address(0)) {\n            paymentToken = IERC20Metadata(_paymentToken);\n        } else {\n            paymentToken = IERC20Metadata(address(0));\n        }\n    }\n\n    /**\n     * @dev Set payment receiver address\n     * @param _paymentReceiver New payment receiver address\n     */\n    function setPaymentReceiver(address _paymentReceiver) external onlyOwner {\n        require(\n            _paymentReceiver != address(0),\n            \"TokenPurchase: Payment receiver cannot be zero address\"\n        );\n        paymentReceiver = _paymentReceiver;\n    }\n\n    /**\n     * @dev Set the current price\n     * @param _price New price (in 10**18 format, 1 = 10**18)\n     */\n    function setPrice(uint256 _price) external onlyOwner {\n        require(_price > 0, \"TokenPurchase: Price must be greater than zero\");\n        currentPrice = _price;\n        emit PriceUpdated(_price);\n    }\n\n    /**\n     * @dev Set the minimum purchase amount\n     * @param _minAmount New minimum purchase amount\n     */\n    function setMinPurchaseAmount(uint256 _minAmount) external onlyOwner {\n        minPurchaseAmount = _minAmount;\n        emit MinPurchaseAmountUpdated(_minAmount);\n    }\n\n    /**\n     * @dev Get the current price\n     * @return Current price\n     */\n    function getPrice() external view returns (uint256) {\n        return currentPrice;\n    }\n\n    /**\n     * @dev Purchase tokens\n     * @param _amount Token amount to purchase (in smallest unit)\n     */\n    function purchase(uint256 _amount) external payable {\n        require(address(token) != address(0), \"TokenPurchase: Token not set\");\n        require(currentPrice > 0, \"TokenPurchase: Price not set\");\n        require(_amount > 0, \"TokenPurchase: Amount must be greater than zero\");\n        require(\n            _amount >= minPurchaseAmount,\n            \"TokenPurchase: Amount below minimum purchase amount\"\n        );\n\n        // Get token decimals\n        uint8 tokenDecimals = token.decimals();\n\n        // Calculate payment token decimals (18 for native currency)\n        uint8 paymentDecimals = address(paymentToken) == address(0)\n            ? 18\n            : paymentToken.decimals();\n\n        // Calculate total cost with proper decimal adjustment\n        // Price is in 10**18 format (1 = 10**18)\n        // Solidity 0.8+ has built-in overflow checking\n        uint256 priceTimeAmount = currentPrice * _amount;\n        uint256 totalCost = priceTimeAmount / 10 ** 18;\n\n        // Ensure the calculation didn't result in zero due to precision loss\n        require(\n            totalCost > 0,\n            \"TokenPurchase: Cost calculation resulted in zero\"\n        );\n\n        // Adjust for the difference in decimal places between token and payment token\n        if (tokenDecimals != paymentDecimals) {\n            if (tokenDecimals > paymentDecimals) {\n                totalCost = totalCost / 10 ** (tokenDecimals - paymentDecimals);\n            } else {\n                totalCost = totalCost * 10 ** (paymentDecimals - tokenDecimals);\n            }\n        }\n\n        // Ensure final cost is not zero after all adjustments\n        require(\n            totalCost > 0,\n            \"TokenPurchase: Final cost calculation resulted in zero\"\n        );\n\n        // Check if contract has enough tokens\n        require(\n            token.balanceOf(address(this)) >= _amount,\n            \"TokenPurchase: Insufficient token balance\"\n        );\n\n        // Handle payment based on payment token type\n        if (address(paymentToken) == address(0)) {\n            // Native currency payment\n            require(\n                msg.value >= totalCost,\n                \"TokenPurchase: Insufficient payment\"\n            );\n\n            // Forward payment to payment receiver\n            payable(paymentReceiver).transfer(totalCost);\n\n            // Refund excess payment if any\n            if (msg.value > totalCost) {\n                payable(msg.sender).transfer(msg.value - totalCost);\n            }\n        } else {\n            // ERC20 token payment\n            require(\n                msg.value == 0,\n                \"TokenPurchase: ETH not accepted for token payments\"\n            );\n\n            // Transfer payment tokens from buyer to payment receiver\n            require(\n                paymentToken.transferFrom(\n                    msg.sender,\n                    paymentReceiver,\n                    totalCost\n                ),\n                \"TokenPurchase: Payment token transfer failed\"\n            );\n        }\n\n        // Transfer tokens from contract to buyer\n        require(\n            token.transfer(msg.sender, _amount),\n            \"TokenPurchase: Token transfer failed\"\n        );\n\n        emit TokensPurchased(msg.sender, _amount, totalCost);\n    }\n\n    /**\n     * @dev Allow admin to withdraw tokens from the contract\n     * @param _amount Amount of tokens to withdraw\n     */\n    function withdrawTokens(uint256 _amount) external onlyOwner {\n        require(address(token) != address(0), \"TokenPurchase: Token not set\");\n        require(\n            token.balanceOf(address(this)) >= _amount,\n            \"TokenPurchase: Insufficient token balance\"\n        );\n\n        require(\n            token.transfer(paymentReceiver, _amount),\n            \"TokenPurchase: Token transfer failed\"\n        );\n    }\n}\n"}},"settings":{"optimizer":{"enabled":true,"runs":200},"evmVersion":"paris","outputSelection":{"*":{"*":["abi","evm.bytecode","evm.deployedBytecode","evm.methodIdentifiers","metadata","devdoc","userdoc","storageLayout","evm.gasEstimates"],"":["ast"]}},"metadata":{"useLiteralContent":true}}},"output":{"sources":{"@openzeppelin/contracts/access/Ownable.sol":{"ast":{"absolutePath":"@openzeppelin/contracts/access/Ownable.sol","exportedSymbols":{"Context":[281],"Ownable":[147]},"id":148,"license":"MIT","nodeType":"SourceUnit","nodes":[{"id":1,"literals":["solidity","^","0.8",".20"],"nodeType":"PragmaDirective","src":"102:24:0"},{"absolutePath":"@openzeppelin/contracts/utils/Context.sol","file":"../utils/Context.sol","id":3,"nameLocation":"-1:-1:-1","nodeType":"ImportDirective","scope":148,"sourceUnit":282,"src":"128:45:0","symbolAliases":[{"foreign":{"id":2,"name":"Context","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":281,"src":"136:7:0","typeDescriptions":{}},"nameLocation":"-1:-1:-1"}],"unitAlias":""},{"abstract":true,"baseContracts":[{"baseName":{"id":5,"name":"Context","nameLocations":["692:7:0"],"nodeType":"IdentifierPath","referencedDeclaration":281,"src":"692:7:0"},"id":6,"nodeType":"InheritanceSpecifier","src":"692:7:0"}],"canonicalName":"Ownable","contractDependencies":[],"contractKind":"contract","documentation":{"id":4,"nodeType":"StructuredDocumentation","src":"175:487:0","text":" @dev Contract module which provides a basic access control mechanism, where\n there is an account (an owner) that can be granted exclusive access to\n specific functions.\n The initial owner is set to the address provided by the deployer. This can\n later be changed with {transferOwnership}.\n This module is used through inheritance. It will make available the modifier\n `onlyOwner`, which can be applied to your functions to restrict their use to\n the owner."},"fullyImplemented":true,"id":147,"linearizedBaseContracts":[147,281],"name":"Ownable","nameLocation":"681:7:0","nodeType":"ContractDefinition","nodes":[{"constant":false,"id":8,"mutability":"mutable","name":"_owner","nameLocation":"722:6:0","nodeType":"VariableDeclaration","scope":147,"src":"706:22:0","stateVariable":true,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":7,"name":"address","nodeType":"ElementaryTypeName","src":"706:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"private"},{"documentation":{"id":9,"nodeType":"StructuredDocumentation","src":"735:85:0","text":" @dev The caller account is not authorized to perform an operation."},"errorSelector":"118cdaa7","id":13,"name":"OwnableUnauthorizedAccount","nameLocation":"831:26:0","nodeType":"ErrorDefinition","parameters":{"id":12,"nodeType":"ParameterList","parameters":[{"constant":false,"id":11,"mutability":"mutable","name":"account","nameLocation":"866:7:0","nodeType":"VariableDeclaration","scope":13,"src":"858:15:0","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":10,"name":"address","nodeType":"ElementaryTypeName","src":"858:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"}],"src":"857:17:0"},"src":"825:50:0"},{"documentation":{"id":14,"nodeType":"StructuredDocumentation","src":"881:82:0","text":" @dev The owner is not a valid owner account. (eg. `address(0)`)"},"errorSelector":"1e4fbdf7","id":18,"name":"OwnableInvalidOwner","nameLocation":"974:19:0","nodeType":"ErrorDefinition","parameters":{"id":17,"nodeType":"ParameterList","parameters":[{"constant":false,"id":16,"mutability":"mutable","name":"owner","nameLocation":"1002:5:0","nodeType":"VariableDeclaration","scope":18,"src":"994:13:0","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":15,"name":"address","nodeType":"ElementaryTypeName","src":"994:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"}],"src":"993:15:0"},"src":"968:41:0"},{"anonymous":false,"eventSelector":"8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0","id":24,"name":"OwnershipTransferred","nameLocation":"1021:20:0","nodeType":"EventDefinition","parameters":{"id":23,"nodeType":"ParameterList","parameters":[{"constant":false,"id":20,"indexed":true,"mutability":"mutable","name":"previousOwner","nameLocation":"1058:13:0","nodeType":"VariableDeclaration","scope":24,"src":"1042:29:0","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":19,"name":"address","nodeType":"ElementaryTypeName","src":"1042:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"},{"constant":false,"id":22,"indexed":true,"mutability":"mutable","name":"newOwner","nameLocation":"1089:8:0","nodeType":"VariableDeclaration","scope":24,"src":"1073:24:0","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":21,"name":"address","nodeType":"ElementaryTypeName","src":"1073:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"}],"src":"1041:57:0"},"src":"1015:84:0"},{"body":{"id":49,"nodeType":"Block","src":"1259:153:0","statements":[{"condition":{"commonType":{"typeIdentifier":"t_address","typeString":"address"},"id":35,"isConstant":false,"isLValue":false,"isPure":false,"lValueRequested":false,"leftExpression":{"id":30,"name":"initialOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":27,"src":"1273:12:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"nodeType":"BinaryOperation","operator":"==","rightExpression":{"arguments":[{"hexValue":"30","id":33,"isConstant":false,"isLValue":false,"isPure":true,"kind":"number","lValueRequested":false,"nodeType":"Literal","src":"1297:1:0","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":32,"isConstant":false,"isLValue":false,"isPure":true,"lValueRequested":false,"nodeType":"ElementaryTypeNameExpression","src":"1289:7:0","typeDescriptions":{"typeIdentifier":"t_type$_t_address_$","typeString":"type(address)"},"typeName":{"id":31,"name":"address","nodeType":"ElementaryTypeName","src":"1289:7:0","typeDescriptions":{}}},"id":34,"isConstant":false,"isLValue":false,"isPure":true,"kind":"typeConversion","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"1289:10:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"src":"1273:26:0","typeDescriptions":{"typeIdentifier":"t_bool","typeString":"bool"}},"id":44,"nodeType":"IfStatement","src":"1269:95:0","trueBody":{"id":43,"nodeType":"Block","src":"1301:63:0","statements":[{"errorCall":{"arguments":[{"arguments":[{"hexValue":"30","id":39,"isConstant":false,"isLValue":false,"isPure":true,"kind":"number","lValueRequested":false,"nodeType":"Literal","src":"1350:1:0","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":38,"isConstant":false,"isLValue":false,"isPure":true,"lValueRequested":false,"nodeType":"ElementaryTypeNameExpression","src":"1342:7:0","typeDescriptions":{"typeIdentifier":"t_type$_t_address_$","typeString":"type(address)"},"typeName":{"id":37,"name":"address","nodeType":"ElementaryTypeName","src":"1342:7:0","typeDescriptions":{}}},"id":40,"isConstant":false,"isLValue":false,"isPure":true,"kind":"typeConversion","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"1342:10:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}}],"expression":{"argumentTypes":[{"typeIdentifier":"t_address","typeString":"address"}],"id":36,"name":"OwnableInvalidOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":18,"src":"1322:19:0","typeDescriptions":{"typeIdentifier":"t_function_error_pure$_t_address_$returns$_t_error_$","typeString":"function (address) pure returns (error)"}},"id":41,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"1322:31:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_error","typeString":"error"}},"id":42,"nodeType":"RevertStatement","src":"1315:38:0"}]}},{"expression":{"arguments":[{"id":46,"name":"initialOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":27,"src":"1392:12:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}}],"expression":{"argumentTypes":[{"typeIdentifier":"t_address","typeString":"address"}],"id":45,"name":"_transferOwnership","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":146,"src":"1373:18:0","typeDescriptions":{"typeIdentifier":"t_function_internal_nonpayable$_t_address_$returns$__$","typeString":"function (address)"}},"id":47,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"1373:32:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_tuple$__$","typeString":"tuple()"}},"id":48,"nodeType":"ExpressionStatement","src":"1373:32:0"}]},"documentation":{"id":25,"nodeType":"StructuredDocumentation","src":"1105:115:0","text":" @dev Initializes the contract setting the address provided by the deployer as the initial owner."},"id":50,"implemented":true,"kind":"constructor","modifiers":[],"name":"","nameLocation":"-1:-1:-1","nodeType":"FunctionDefinition","parameters":{"id":28,"nodeType":"ParameterList","parameters":[{"constant":false,"id":27,"mutability":"mutable","name":"initialOwner","nameLocation":"1245:12:0","nodeType":"VariableDeclaration","scope":50,"src":"1237:20:0","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":26,"name":"address","nodeType":"ElementaryTypeName","src":"1237:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"}],"src":"1236:22:0"},"returnParameters":{"id":29,"nodeType":"ParameterList","parameters":[],"src":"1259:0:0"},"scope":147,"src":"1225:187:0","stateMutability":"nonpayable","virtual":false,"visibility":"internal"},{"body":{"id":57,"nodeType":"Block","src":"1521:41:0","statements":[{"expression":{"arguments":[],"expression":{"argumentTypes":[],"id":53,"name":"_checkOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":84,"src":"1531:11:0","typeDescriptions":{"typeIdentifier":"t_function_internal_view$__$returns$__$","typeString":"function () view"}},"id":54,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"1531:13:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_tuple$__$","typeString":"tuple()"}},"id":55,"nodeType":"ExpressionStatement","src":"1531:13:0"},{"id":56,"nodeType":"PlaceholderStatement","src":"1554:1:0"}]},"documentation":{"id":51,"nodeType":"StructuredDocumentation","src":"1418:77:0","text":" @dev Throws if called by any account other than the owner."},"id":58,"name":"onlyOwner","nameLocation":"1509:9:0","nodeType":"ModifierDefinition","parameters":{"id":52,"nodeType":"ParameterList","parameters":[],"src":"1518:2:0"},"src":"1500:62:0","virtual":false,"visibility":"internal"},{"body":{"id":66,"nodeType":"Block","src":"1693:30:0","statements":[{"expression":{"id":64,"name":"_owner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":8,"src":"1710:6:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"functionReturnParameters":63,"id":65,"nodeType":"Return","src":"1703:13:0"}]},"documentation":{"id":59,"nodeType":"StructuredDocumentation","src":"1568:65:0","text":" @dev Returns the address of the current owner."},"functionSelector":"8da5cb5b","id":67,"implemented":true,"kind":"function","modifiers":[],"name":"owner","nameLocation":"1647:5:0","nodeType":"FunctionDefinition","parameters":{"id":60,"nodeType":"ParameterList","parameters":[],"src":"1652:2:0"},"returnParameters":{"id":63,"nodeType":"ParameterList","parameters":[{"constant":false,"id":62,"mutability":"mutable","name":"","nameLocation":"-1:-1:-1","nodeType":"VariableDeclaration","scope":67,"src":"1684:7:0","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":61,"name":"address","nodeType":"ElementaryTypeName","src":"1684:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"}],"src":"1683:9:0"},"scope":147,"src":"1638:85:0","stateMutability":"view","virtual":true,"visibility":"public"},{"body":{"id":83,"nodeType":"Block","src":"1841:117:0","statements":[{"condition":{"commonType":{"typeIdentifier":"t_address","typeString":"address"},"id":75,"isConstant":false,"isLValue":false,"isPure":false,"lValueRequested":false,"leftExpression":{"arguments":[],"expression":{"argumentTypes":[],"id":71,"name":"owner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":67,"src":"1855:5:0","typeDescriptions":{"typeIdentifier":"t_function_internal_view$__$returns$_t_address_$","typeString":"function () view returns (address)"}},"id":72,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"1855:7:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"nodeType":"BinaryOperation","operator":"!=","rightExpression":{"arguments":[],"expression":{"argumentTypes":[],"id":73,"name":"_msgSender","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":263,"src":"1866:10:0","typeDescriptions":{"typeIdentifier":"t_function_internal_view$__$returns$_t_address_$","typeString":"function () view returns (address)"}},"id":74,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"1866:12:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"src":"1855:23:0","typeDescriptions":{"typeIdentifier":"t_bool","typeString":"bool"}},"id":82,"nodeType":"IfStatement","src":"1851:101:0","trueBody":{"id":81,"nodeType":"Block","src":"1880:72:0","statements":[{"errorCall":{"arguments":[{"arguments":[],"expression":{"argumentTypes":[],"id":77,"name":"_msgSender","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":263,"src":"1928:10:0","typeDescriptions":{"typeIdentifier":"t_function_internal_view$__$returns$_t_address_$","typeString":"function () view returns (address)"}},"id":78,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"1928:12:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}}],"expression":{"argumentTypes":[{"typeIdentifier":"t_address","typeString":"address"}],"id":76,"name":"OwnableUnauthorizedAccount","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":13,"src":"1901:26:0","typeDescriptions":{"typeIdentifier":"t_function_error_pure$_t_address_$returns$_t_error_$","typeString":"function (address) pure returns (error)"}},"id":79,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"1901:40:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_error","typeString":"error"}},"id":80,"nodeType":"RevertStatement","src":"1894:47:0"}]}}]},"documentation":{"id":68,"nodeType":"StructuredDocumentation","src":"1729:62:0","text":" @dev Throws if the sender is not the owner."},"id":84,"implemented":true,"kind":"function","modifiers":[],"name":"_checkOwner","nameLocation":"1805:11:0","nodeType":"FunctionDefinition","parameters":{"id":69,"nodeType":"ParameterList","parameters":[],"src":"1816:2:0"},"returnParameters":{"id":70,"nodeType":"ParameterList","parameters":[],"src":"1841:0:0"},"scope":147,"src":"1796:162:0","stateMutability":"view","virtual":true,"visibility":"internal"},{"body":{"id":97,"nodeType":"Block","src":"2347:47:0","statements":[{"expression":{"arguments":[{"arguments":[{"hexValue":"30","id":93,"isConstant":false,"isLValue":false,"isPure":true,"kind":"number","lValueRequested":false,"nodeType":"Literal","src":"2384:1:0","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":92,"isConstant":false,"isLValue":false,"isPure":true,"lValueRequested":false,"nodeType":"ElementaryTypeNameExpression","src":"2376:7:0","typeDescriptions":{"typeIdentifier":"t_type$_t_address_$","typeString":"type(address)"},"typeName":{"id":91,"name":"address","nodeType":"ElementaryTypeName","src":"2376:7:0","typeDescriptions":{}}},"id":94,"isConstant":false,"isLValue":false,"isPure":true,"kind":"typeConversion","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"2376:10:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}}],"expression":{"argumentTypes":[{"typeIdentifier":"t_address","typeString":"address"}],"id":90,"name":"_transferOwnership","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":146,"src":"2357:18:0","typeDescriptions":{"typeIdentifier":"t_function_internal_nonpayable$_t_address_$returns$__$","typeString":"function (address)"}},"id":95,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"2357:30:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_tuple$__$","typeString":"tuple()"}},"id":96,"nodeType":"ExpressionStatement","src":"2357:30:0"}]},"documentation":{"id":85,"nodeType":"StructuredDocumentation","src":"1964:324:0","text":" @dev Leaves the contract without owner. It will not be possible to call\n `onlyOwner` functions. Can only be called by the current owner.\n NOTE: Renouncing ownership will leave the contract without an owner,\n thereby disabling any functionality that is only available to the owner."},"functionSelector":"715018a6","id":98,"implemented":true,"kind":"function","modifiers":[{"id":88,"kind":"modifierInvocation","modifierName":{"id":87,"name":"onlyOwner","nameLocations":["2337:9:0"],"nodeType":"IdentifierPath","referencedDeclaration":58,"src":"2337:9:0"},"nodeType":"ModifierInvocation","src":"2337:9:0"}],"name":"renounceOwnership","nameLocation":"2302:17:0","nodeType":"FunctionDefinition","parameters":{"id":86,"nodeType":"ParameterList","parameters":[],"src":"2319:2:0"},"returnParameters":{"id":89,"nodeType":"ParameterList","parameters":[],"src":"2347:0:0"},"scope":147,"src":"2293:101:0","stateMutability":"nonpayable","virtual":true,"visibility":"public"},{"body":{"id":125,"nodeType":"Block","src":"2613:145:0","statements":[{"condition":{"commonType":{"typeIdentifier":"t_address","typeString":"address"},"id":111,"isConstant":false,"isLValue":false,"isPure":false,"lValueRequested":false,"leftExpression":{"id":106,"name":"newOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":101,"src":"2627:8:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"nodeType":"BinaryOperation","operator":"==","rightExpression":{"arguments":[{"hexValue":"30","id":109,"isConstant":false,"isLValue":false,"isPure":true,"kind":"number","lValueRequested":false,"nodeType":"Literal","src":"2647:1:0","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":108,"isConstant":false,"isLValue":false,"isPure":true,"lValueRequested":false,"nodeType":"ElementaryTypeNameExpression","src":"2639:7:0","typeDescriptions":{"typeIdentifier":"t_type$_t_address_$","typeString":"type(address)"},"typeName":{"id":107,"name":"address","nodeType":"ElementaryTypeName","src":"2639:7:0","typeDescriptions":{}}},"id":110,"isConstant":false,"isLValue":false,"isPure":true,"kind":"typeConversion","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"2639:10:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"src":"2627:22:0","typeDescriptions":{"typeIdentifier":"t_bool","typeString":"bool"}},"id":120,"nodeType":"IfStatement","src":"2623:91:0","trueBody":{"id":119,"nodeType":"Block","src":"2651:63:0","statements":[{"errorCall":{"arguments":[{"arguments":[{"hexValue":"30","id":115,"isConstant":false,"isLValue":false,"isPure":true,"kind":"number","lValueRequested":false,"nodeType":"Literal","src":"2700:1:0","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":114,"isConstant":false,"isLValue":false,"isPure":true,"lValueRequested":false,"nodeType":"ElementaryTypeNameExpression","src":"2692:7:0","typeDescriptions":{"typeIdentifier":"t_type$_t_address_$","typeString":"type(address)"},"typeName":{"id":113,"name":"address","nodeType":"ElementaryTypeName","src":"2692:7:0","typeDescriptions":{}}},"id":116,"isConstant":false,"isLValue":false,"isPure":true,"kind":"typeConversion","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"2692:10:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}}],"expression":{"argumentTypes":[{"typeIdentifier":"t_address","typeString":"address"}],"id":112,"name":"OwnableInvalidOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":18,"src":"2672:19:0","typeDescriptions":{"typeIdentifier":"t_function_error_pure$_t_address_$returns$_t_error_$","typeString":"function (address) pure returns (error)"}},"id":117,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"2672:31:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_error","typeString":"error"}},"id":118,"nodeType":"RevertStatement","src":"2665:38:0"}]}},{"expression":{"arguments":[{"id":122,"name":"newOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":101,"src":"2742:8:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}}],"expression":{"argumentTypes":[{"typeIdentifier":"t_address","typeString":"address"}],"id":121,"name":"_transferOwnership","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":146,"src":"2723:18:0","typeDescriptions":{"typeIdentifier":"t_function_internal_nonpayable$_t_address_$returns$__$","typeString":"function (address)"}},"id":123,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"2723:28:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_tuple$__$","typeString":"tuple()"}},"id":124,"nodeType":"ExpressionStatement","src":"2723:28:0"}]},"documentation":{"id":99,"nodeType":"StructuredDocumentation","src":"2400:138:0","text":" @dev Transfers ownership of the contract to a new account (`newOwner`).\n Can only be called by the current owner."},"functionSelector":"f2fde38b","id":126,"implemented":true,"kind":"function","modifiers":[{"id":104,"kind":"modifierInvocation","modifierName":{"id":103,"name":"onlyOwner","nameLocations":["2603:9:0"],"nodeType":"IdentifierPath","referencedDeclaration":58,"src":"2603:9:0"},"nodeType":"ModifierInvocation","src":"2603:9:0"}],"name":"transferOwnership","nameLocation":"2552:17:0","nodeType":"FunctionDefinition","parameters":{"id":102,"nodeType":"ParameterList","parameters":[{"constant":false,"id":101,"mutability":"mutable","name":"newOwner","nameLocation":"2578:8:0","nodeType":"VariableDeclaration","scope":126,"src":"2570:16:0","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":100,"name":"address","nodeType":"ElementaryTypeName","src":"2570:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"}],"src":"2569:18:0"},"returnParameters":{"id":105,"nodeType":"ParameterList","parameters":[],"src":"2613:0:0"},"scope":147,"src":"2543:215:0","stateMutability":"nonpayable","virtual":true,"visibility":"public"},{"body":{"id":145,"nodeType":"Block","src":"2975:124:0","statements":[{"assignments":[133],"declarations":[{"constant":false,"id":133,"mutability":"mutable","name":"oldOwner","nameLocation":"2993:8:0","nodeType":"VariableDeclaration","scope":145,"src":"2985:16:0","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":132,"name":"address","nodeType":"ElementaryTypeName","src":"2985:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"}],"id":135,"initialValue":{"id":134,"name":"_owner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":8,"src":"3004:6:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"nodeType":"VariableDeclarationStatement","src":"2985:25:0"},{"expression":{"id":138,"isConstant":false,"isLValue":false,"isPure":false,"lValueRequested":false,"leftHandSide":{"id":136,"name":"_owner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":8,"src":"3020:6:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"nodeType":"Assignment","operator":"=","rightHandSide":{"id":137,"name":"newOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":129,"src":"3029:8:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"src":"3020:17:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"id":139,"nodeType":"ExpressionStatement","src":"3020:17:0"},{"eventCall":{"arguments":[{"id":141,"name":"oldOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":133,"src":"3073:8:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},{"id":142,"name":"newOwner","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":129,"src":"3083:8:0","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}}],"expression":{"argumentTypes":[{"typeIdentifier":"t_address","typeString":"address"},{"typeIdentifier":"t_address","typeString":"address"}],"id":140,"name":"OwnershipTransferred","nodeType":"Identifier","overloadedDeclarations":[],"referencedDeclaration":24,"src":"3052:20:0","typeDescriptions":{"typeIdentifier":"t_function_event_nonpayable$_t_address_$_t_address_$returns$__$","typeString":"function (address,address)"}},"id":143,"isConstant":false,"isLValue":false,"isPure":false,"kind":"functionCall","lValueRequested":false,"nameLocations":[],"names":[],"nodeType":"FunctionCall","src":"3052:40:0","tryCall":false,"typeDescriptions":{"typeIdentifier":"t_tuple$__$","typeString":"tuple()"}},"id":144,"nodeType":"EmitStatement","src":"3047:45:0"}]},"documentation":{"id":127,"nodeType":"StructuredDocumentation","src":"2764:143:0","text":" @dev Transfers ownership of the contract to a new account (`newOwner`).\n Internal function without access restriction."},"id":146,"implemented":true,"kind":"function","modifiers":[],"name":"_transferOwnership","nameLocation":"2921:18:0","nodeType":"FunctionDefinition","parameters":{"id":130,"nodeType":"ParameterList","parameters":[{"constant":false,"id":129,"mutability":"mutable","name":"newOwner","nameLocation":"2948:8:0","nodeType":"VariableDeclaration","scope":146,"src":"2940:16:0","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":128,"name":"address","nodeType":"ElementaryTypeName","src":"2940:7:0","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"}],"src":"2939:18:0"},"returnParameters":{"id":131,"nodeType":"ParameterList","parameters":[],"src":"2975:0:0"},"scope":147,"src":"2912:187:0","stateMutability":"nonpayable","virtual":true,"visibility":"internal"}],"scope":148,"src":"663:2438:0","usedErrors":[13,18],"usedEvents":[24]}],"src":"102:3000:0"},"id":0},"@openzeppelin/contracts/token/ERC20/IERC20.sol":{"ast":{"absolutePath":"@openzeppelin/contracts/token/ERC20/IERC20.sol","exportedSymbols":{"IERC20":[225]},"id":226,"license":"MIT","nodeType":"SourceUnit","nodes":[{"id":149,"literals":["solidity","^","0.8",".20"],"nodeType":"PragmaDirective","src":"106:24:1"},{"abstract":false,"baseContracts":[],"canonicalName":"IERC20","contractDependencies":[],"contractKind":"interface","documentation":{"id":150,"nodeType":"StructuredDocumentation","src":"132:71:1","text":" @dev Interface of the ERC-20 standard as defined in the ERC."},"fullyImplemented":false,"id":225,"linearizedBaseContracts":[225],"name":"IERC20","nameLocation":"214:6:1","nodeType":"ContractDefinition","nodes":[{"anonymous":false,"documentation":{"id":151,"nodeType":"StructuredDocumentation","src":"227:158:1","text":" @dev Emitted when `value` tokens are moved from one account (`from`) to\n another (`to`).\n Note that `value` may be zero."},"eventSelector":"ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef","id":159,"name":"Transfer","nameLocation":"396:8:1","nodeType":"EventDefinition","parameters":{"id":158,"nodeType":"ParameterList","parameters":[{"constant":false,"id":153,"indexed":true,"mutability":"mutable","name":"from","nameLocation":"421:4:1","nodeType":"VariableDeclaration","scope":159,"src":"405:20:1","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":152,"name":"address","nodeType":"ElementaryTypeName","src":"405:7:1","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"},{"constant":false,"id":155,"indexed":true,"mutability":"mutable","name":"to","nameLocation":"443:2:1","nodeType":"VariableDeclaration","scope":159,"src":"427:18:1","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"},"typeName":{"id":154,"name":"address","nodeType":"ElementaryTypeName","src":"427:7:1","stateMutability":"nonpayable","typeDescriptions":{"typeIdentifier":"t_address","typeString":"address"}},"visibility":"internal"},{"constant":false,"id":157,"indexed":false,"mutability":"mutable","name":"value","nameLocation":"455:5:1","nodeType":"VariableDeclaration","scope":159,"src":"447:13:1","stateVariable":false,"storageLocation":"default","typeDescriptions":{"typeIdentifier":"t_uint256","typeString":"uint256"},"typeName":{"id":156,"name":"uint256","nodeType":"ElementaryTypeName","src":"447:7:1","typeDescriptions":{"typeIdentifier":"t_uint256","typeString":"uint256"}},"visibility":"internal"}],"src":"404:57:1"},"src":"390:72:1"},{"anonymous":false,"documentation":{"id":160,"nodeType":"StructuredDocumentation","src":"468:148:1","text":" @dev Emitted when the allowance of a `spender` for an `owner` is set by\n a call to {approve}. `value` is the new allowance."},"eventSelector":"8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925","id":168,"name":"Approval","nameLocation":"627:8:1","nodeType":"EventDefinition","parameters":{"id":167,"nodeType":"ParameterList","parameters":[{"constant":false,"id":162,"indexed":true,"mutability":"mutable","name":"owner","nameLocation":"652:5:1","nodeType":"VariableDeclaration","scope":168,"src":"636:21:1","stateVariable":false,"storageLocation":"default","t