{ "fileName": "ERC777.sol", "contractName": "ERC777", "source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.7.0;\n\nimport \"../../GSN/Context.sol\";\nimport \"./IERC777.sol\";\nimport \"./IERC777Recipient.sol\";\nimport \"./IERC777Sender.sol\";\nimport \"../../token/ERC20/IERC20.sol\";\nimport \"../../math/SafeMath.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../introspection/IERC1820Registry.sol\";\n\n/**\n * @dev Implementation of the {IERC777} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n *\n * Support for ERC20 is included in this contract, as specified by the EIP: both\n * the ERC777 and ERC20 interfaces can be safely used when interacting with it.\n * Both {IERC777-Sent} and {IERC20-Transfer} events are emitted on token\n * movements.\n *\n * Additionally, the {IERC777-granularity} value is hard-coded to `1`, meaning that there\n * are no special restrictions in the amount of tokens that created, moved, or\n * destroyed. This makes integration with ERC20 applications seamless.\n */\ncontract ERC777 is Context, IERC777, IERC20 {\n using SafeMath for uint256;\n using Address for address;\n\n IERC1820Registry constant internal _ERC1820_REGISTRY = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24);\n\n mapping(address => uint256) private _balances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n // We inline the result of the following hashes because Solidity doesn't resolve them at compile time.\n // See https://github.com/ethereum/solidity/issues/4024.\n\n // keccak256(\"ERC777TokensSender\")\n bytes32 constant private _TOKENS_SENDER_INTERFACE_HASH =\n 0x29ddb589b1fb5fc7cf394961c1adf5f8c6454761adf795e67fe149f658abe895;\n\n // keccak256(\"ERC777TokensRecipient\")\n bytes32 constant private _TOKENS_RECIPIENT_INTERFACE_HASH =\n 0xb281fc8c12954d22544db45de3159a39272895b169a852b314f9cc762e44c53b;\n\n // This isn't ever read from - it's only used to respond to the defaultOperators query.\n address[] private _defaultOperatorsArray;\n\n // Immutable, but accounts may revoke them (tracked in __revokedDefaultOperators).\n mapping(address => bool) private _defaultOperators;\n\n // For each account, a mapping of its operators and revoked default operators.\n mapping(address => mapping(address => bool)) private _operators;\n mapping(address => mapping(address => bool)) private _revokedDefaultOperators;\n\n // ERC20-allowances\n mapping (address => mapping (address => uint256)) private _allowances;\n\n /**\n * @dev `defaultOperators` may be an empty array.\n */\n constructor(\n string memory name,\n string memory symbol,\n address[] memory defaultOperators\n ) {\n _name = name;\n _symbol = symbol;\n\n _defaultOperatorsArray = defaultOperators;\n for (uint256 i = 0; i < _defaultOperatorsArray.length; i++) {\n _defaultOperators[_defaultOperatorsArray[i]] = true;\n }\n\n // register interfaces\n _ERC1820_REGISTRY.setInterfaceImplementer(address(this), keccak256(\"ERC777Token\"), address(this));\n _ERC1820_REGISTRY.setInterfaceImplementer(address(this), keccak256(\"ERC20Token\"), address(this));\n }\n\n /**\n * @dev See {IERC777-name}.\n */\n function name() public view override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC777-symbol}.\n */\n function symbol() public view override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {ERC20-decimals}.\n *\n * Always returns 18, as per the\n * [ERC777 EIP](https://eips.ethereum.org/EIPS/eip-777#backward-compatibility).\n */\n function decimals() public pure returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC777-granularity}.\n *\n * This implementation always returns `1`.\n */\n function granularity() public view override returns (uint256) {\n return 1;\n }\n\n /**\n * @dev See {IERC777-totalSupply}.\n */\n function totalSupply() public view override(IERC20, IERC777) returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev Returns the amount of tokens owned by an account (`tokenHolder`).\n */\n function balanceOf(address tokenHolder) public view override(IERC20, IERC777) returns (uint256) {\n return _balances[tokenHolder];\n }\n\n /**\n * @dev See {IERC777-send}.\n *\n * Also emits a {IERC20-Transfer} event for ERC20 compatibility.\n */\n function send(address recipient, uint256 amount, bytes memory data) public override {\n _send(_msgSender(), recipient, amount, data, \"\", true);\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Unlike `send`, `recipient` is _not_ required to implement the {IERC777Recipient}\n * interface if it is a contract.\n *\n * Also emits a {Sent} event.\n */\n function transfer(address recipient, uint256 amount) public override returns (bool) {\n require(recipient != address(0), \"ERC777: transfer to the zero address\");\n\n address from = _msgSender();\n\n _callTokensToSend(from, from, recipient, amount, \"\", \"\");\n\n _move(from, from, recipient, amount, \"\", \"\");\n\n _callTokensReceived(from, from, recipient, amount, \"\", \"\", false);\n\n return true;\n }\n\n /**\n * @dev See {IERC777-burn}.\n *\n * Also emits a {IERC20-Transfer} event for ERC20 compatibility.\n */\n function burn(uint256 amount, bytes memory data) public override {\n _burn(_msgSender(), amount, data, \"\");\n }\n\n /**\n * @dev See {IERC777-isOperatorFor}.\n */\n function isOperatorFor(\n address operator,\n address tokenHolder\n ) public view override returns (bool) {\n return operator == tokenHolder ||\n (_defaultOperators[operator] && !_revokedDefaultOperators[tokenHolder][operator]) ||\n _operators[tokenHolder][operator];\n }\n\n /**\n * @dev See {IERC777-authorizeOperator}.\n */\n function authorizeOperator(address operator) public override {\n require(_msgSender() != operator, \"ERC777: authorizing self as operator\");\n\n if (_defaultOperators[operator]) {\n delete _revokedDefaultOperators[_msgSender()][operator];\n } else {\n _operators[_msgSender()][operator] = true;\n }\n\n emit AuthorizedOperator(operator, _msgSender());\n }\n\n /**\n * @dev See {IERC777-revokeOperator}.\n */\n function revokeOperator(address operator) public override {\n require(operator != _msgSender(), \"ERC777: revoking self as operator\");\n\n if (_defaultOperators[operator]) {\n _revokedDefaultOperators[_msgSender()][operator] = true;\n } else {\n delete _operators[_msgSender()][operator];\n }\n\n emit RevokedOperator(operator, _msgSender());\n }\n\n /**\n * @dev See {IERC777-defaultOperators}.\n */\n function defaultOperators() public view override returns (address[] memory) {\n return _defaultOperatorsArray;\n }\n\n /**\n * @dev See {IERC777-operatorSend}.\n *\n * Emits {Sent} and {IERC20-Transfer} events.\n */\n function operatorSend(\n address sender,\n address recipient,\n uint256 amount,\n bytes memory data,\n bytes memory operatorData\n )\n public override\n {\n require(isOperatorFor(_msgSender(), sender), \"ERC777: caller is not an operator for holder\");\n _send(sender, recipient, amount, data, operatorData, true);\n }\n\n /**\n * @dev See {IERC777-operatorBurn}.\n *\n * Emits {Burned} and {IERC20-Transfer} events.\n */\n function operatorBurn(address account, uint256 amount, bytes memory data, bytes memory operatorData) public override {\n require(isOperatorFor(_msgSender(), account), \"ERC777: caller is not an operator for holder\");\n _burn(account, amount, data, operatorData);\n }\n\n /**\n * @dev See {IERC20-allowance}.\n *\n * Note that operator and allowance concepts are orthogonal: operators may\n * not have allowance, and accounts with allowance may not be operators\n * themselves.\n */\n function allowance(address holder, address spender) public view override returns (uint256) {\n return _allowances[holder][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * Note that accounts cannot have allowance issued by their operators.\n */\n function approve(address spender, uint256 value) public override returns (bool) {\n address holder = _msgSender();\n _approve(holder, spender, value);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Note that operator and allowance concepts are orthogonal: operators cannot\n * call `transferFrom` (unless they have allowance), and accounts with\n * allowance cannot call `operatorSend` (unless they are operators).\n *\n * Emits {Sent}, {IERC20-Transfer} and {IERC20-Approval} events.\n */\n function transferFrom(address holder, address recipient, uint256 amount) public override returns (bool) {\n require(recipient != address(0), \"ERC777: transfer to the zero address\");\n require(holder != address(0), \"ERC777: transfer from the zero address\");\n\n address spender = _msgSender();\n\n _callTokensToSend(spender, holder, recipient, amount, \"\", \"\");\n\n _move(spender, holder, recipient, amount, \"\", \"\");\n _approve(holder, spender, _allowances[holder][spender].sub(amount, \"ERC777: transfer amount exceeds allowance\"));\n\n _callTokensReceived(spender, holder, recipient, amount, \"\", \"\", false);\n\n return true;\n }\n\n /**\n * @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * If a send hook is registered for `account`, the corresponding function\n * will be called with `operator`, `data` and `operatorData`.\n *\n * See {IERC777Sender} and {IERC777Recipient}.\n *\n * Emits {Minted} and {IERC20-Transfer} events.\n *\n * Requirements\n *\n * - `account` cannot be the zero address.\n * - if `account` is a contract, it must implement the {IERC777Recipient}\n * interface.\n */\n function _mint(\n address account,\n uint256 amount,\n bytes memory userData,\n bytes memory operatorData\n )\n internal virtual\n {\n require(account != address(0), \"ERC777: mint to the zero address\");\n\n address operator = _msgSender();\n\n _beforeTokenTransfer(operator, address(0), account, amount);\n\n // Update state variables\n _totalSupply = _totalSupply.add(amount);\n _balances[account] = _balances[account].add(amount);\n\n _callTokensReceived(operator, address(0), account, amount, userData, operatorData, true);\n\n emit Minted(operator, account, amount, userData, operatorData);\n emit Transfer(address(0), account, amount);\n }\n\n /**\n * @dev Send tokens\n * @param from address token holder address\n * @param to address recipient address\n * @param amount uint256 amount of tokens to transfer\n * @param userData bytes extra information provided by the token holder (if any)\n * @param operatorData bytes extra information provided by the operator (if any)\n * @param requireReceptionAck if true, contract recipients are required to implement ERC777TokensRecipient\n */\n function _send(\n address from,\n address to,\n uint256 amount,\n bytes memory userData,\n bytes memory operatorData,\n bool requireReceptionAck\n )\n internal\n {\n require(from != address(0), \"ERC777: send from the zero address\");\n require(to != address(0), \"ERC777: send to the zero address\");\n\n address operator = _msgSender();\n\n _callTokensToSend(operator, from, to, amount, userData, operatorData);\n\n _move(operator, from, to, amount, userData, operatorData);\n\n _callTokensReceived(operator, from, to, amount, userData, operatorData, requireReceptionAck);\n }\n\n /**\n * @dev Burn tokens\n * @param from address token holder address\n * @param amount uint256 amount of tokens to burn\n * @param data bytes extra information provided by the token holder\n * @param operatorData bytes extra information provided by the operator (if any)\n */\n function _burn(\n address from,\n uint256 amount,\n bytes memory data,\n bytes memory operatorData\n )\n internal virtual\n {\n require(from != address(0), \"ERC777: burn from the zero address\");\n\n address operator = _msgSender();\n\n _beforeTokenTransfer(operator, from, address(0), amount);\n\n _callTokensToSend(operator, from, address(0), amount, data, operatorData);\n\n // Update state variables\n _balances[from] = _balances[from].sub(amount, \"ERC777: burn amount exceeds balance\");\n _totalSupply = _totalSupply.sub(amount);\n\n emit Burned(operator, from, amount, data, operatorData);\n emit Transfer(from, address(0), amount);\n }\n\n function _move(\n address operator,\n address from,\n address to,\n uint256 amount,\n bytes memory userData,\n bytes memory operatorData\n )\n private\n {\n _beforeTokenTransfer(operator, from, to, amount);\n\n _balances[from] = _balances[from].sub(amount, \"ERC777: transfer amount exceeds balance\");\n _balances[to] = _balances[to].add(amount);\n\n emit Sent(operator, from, to, amount, userData, operatorData);\n emit Transfer(from, to, amount);\n }\n\n /**\n * @dev See {ERC20-_approve}.\n *\n * Note that accounts cannot have allowance issued by their operators.\n */\n function _approve(address holder, address spender, uint256 value) internal {\n require(holder != address(0), \"ERC777: approve from the zero address\");\n require(spender != address(0), \"ERC777: approve to the zero address\");\n\n _allowances[holder][spender] = value;\n emit Approval(holder, spender, value);\n }\n\n /**\n * @dev Call from.tokensToSend() if the interface is registered\n * @param operator address operator requesting the transfer\n * @param from address token holder address\n * @param to address recipient address\n * @param amount uint256 amount of tokens to transfer\n * @param userData bytes extra information provided by the token holder (if any)\n * @param operatorData bytes extra information provided by the operator (if any)\n */\n function _callTokensToSend(\n address operator,\n address from,\n address to,\n uint256 amount,\n bytes memory userData,\n bytes memory operatorData\n )\n private\n {\n address implementer = _ERC1820_REGISTRY.getInterfaceImplementer(from, _TOKENS_SENDER_INTERFACE_HASH);\n if (implementer != address(0)) {\n IERC777Sender(implementer).tokensToSend(operator, from, to, amount, userData, operatorData);\n }\n }\n\n /**\n * @dev Call to.tokensReceived() if the interface is registered. Reverts if the recipient is a contract but\n * tokensReceived() was not registered for the recipient\n * @param operator address operator requesting the transfer\n * @param from address token holder address\n * @param to address recipient address\n * @param amount uint256 amount of tokens to transfer\n * @param userData bytes extra information provided by the token holder (if any)\n * @param operatorData bytes extra information provided by the operator (if any)\n * @param requireReceptionAck if true, contract recipients are required to implement ERC777TokensRecipient\n */\n function _callTokensReceived(\n address operator,\n address from,\n address to,\n uint256 amount,\n bytes memory userData,\n bytes memory operatorData,\n bool requireReceptionAck\n )\n private\n {\n address implementer = _ERC1820_REGISTRY.getInterfaceImplementer(to, _TOKENS_RECIPIENT_INTERFACE_HASH);\n if (implementer != address(0)) {\n IERC777Recipient(implementer).tokensReceived(operator, from, to, amount, userData, operatorData);\n } else if (requireReceptionAck) {\n require(!to.isContract(), \"ERC777: token recipient contract has no implementer for ERC777TokensRecipient\");\n }\n }\n\n /**\n * @dev Hook that is called before any token transfer. This includes\n * calls to {send}, {transfer}, {operatorSend}, minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be to transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(address operator, address from, address to, uint256 amount) internal virtual { }\n}\n", "sourcePath": "contracts/token/ERC777/ERC777.sol", "sourceMap": 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"name": "operatorSend", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "operator", "type": "address" } ], "name": "revokeOperator", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "recipient", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" }, { "internalType": "bytes", "name": "data", "type": "bytes" } ], "name": "send", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "symbol", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "totalSupply", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "recipient", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "transfer", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "holder", "type": "address" }, { "internalType": "address", "name": "recipient", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "transferFrom", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" } ], "ast": { "absolutePath": "contracts/token/ERC777/ERC777.sol", "exportedSymbols": { "ERC777": [ 12417 ] }, "id": 12418, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 11319, "literals": [ "solidity", "^", "0.7", ".0" ], "nodeType": "PragmaDirective", "src": "33:23:100" }, { "absolutePath": "contracts/GSN/Context.sol", "file": "../../GSN/Context.sol", "id": 11320, "nodeType": "ImportDirective", "scope": 12418, "sourceUnit": 23, "src": "58:31:100", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/token/ERC777/IERC777.sol", "file": "./IERC777.sol", "id": 11321, "nodeType": "ImportDirective", "scope": 12418, "sourceUnit": 12577, "src": "90:23:100", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/token/ERC777/IERC777Recipient.sol", "file": "./IERC777Recipient.sol", "id": 11322, "nodeType": "ImportDirective", "scope": 12418, "sourceUnit": 12597, "src": "114:32:100", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/token/ERC777/IERC777Sender.sol", "file": "./IERC777Sender.sol", "id": 11323, "nodeType": "ImportDirective", "scope": 12418, "sourceUnit": 12617, "src": "147:29:100", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/token/ERC20/IERC20.sol", "file": "../../token/ERC20/IERC20.sol", "id": 11324, "nodeType": "ImportDirective", "scope": 12418, "sourceUnit": 9780, "src": "177:38:100", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/math/SafeMath.sol", "file": "../../math/SafeMath.sol", "id": 11325, "nodeType": "ImportDirective", "scope": 12418, "sourceUnit": 2422, "src": "216:33:100", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/utils/Address.sol", "file": "../../utils/Address.sol", "id": 11326, "nodeType": "ImportDirective", "scope": 12418, "sourceUnit": 12812, "src": "250:33:100", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "contracts/introspection/IERC1820Registry.sol", "file": "../../introspection/IERC1820Registry.sol", "id": 11327, "nodeType": "ImportDirective", "scope": 12418, "sourceUnit": 2153, "src": "284:50:100", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 11329, "name": "Context", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 22, "src": "1068:7:100", "typeDescriptions": { "typeIdentifier": "t_contract$_Context_$22", "typeString": "contract Context" } }, "id": 11330, "nodeType": "InheritanceSpecifier", "src": "1068:7:100" }, { "arguments": null, "baseName": { "contractScope": null, "id": 11331, "name": "IERC777", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 12576, "src": "1077:7:100", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC777_$12576", "typeString": "contract IERC777" } }, "id": 11332, "nodeType": "InheritanceSpecifier", "src": "1077:7:100" }, { "arguments": null, "baseName": { "contractScope": null, "id": 11333, "name": "IERC20", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 9779, "src": "1086:6:100", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$9779", "typeString": "contract IERC20" } }, "id": 11334, "nodeType": "InheritanceSpecifier", "src": "1086:6:100" } ], "contractDependencies": [ 22, 9779, 12576 ], "contractKind": "contract", "documentation": { "id": 11328, "nodeType": "StructuredDocumentation", "src": "336:712:100", "text": " @dev Implementation of the {IERC777} interface.\n This implementation is agnostic to the way tokens are created. This means\n that a supply mechanism has to be added in a derived contract using {_mint}.\n Support for ERC20 is included in this contract, as specified by the EIP: both\n the ERC777 and ERC20 interfaces can be safely used when interacting with it.\n Both {IERC777-Sent} and {IERC20-Transfer} events are emitted on token\n movements.\n Additionally, the {IERC777-granularity} value is hard-coded to `1`, meaning that there\n are no special restrictions in the amount of tokens that created, moved, or\n destroyed. This makes integration with ERC20 applications seamless." }, "fullyImplemented": true, "id": 12417, "linearizedBaseContracts": [ 12417, 9779, 12576, 22 ], "name": "ERC777", "nodeType": "ContractDefinition", "nodes": [ { "id": 11337, "libraryName": { "contractScope": null, "id": 11335, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2421, "src": "1105:8:100", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$2421", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "1099:27:100", "typeName": { "id": 11336, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1118:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "id": 11340, "libraryName": { "contractScope": null, "id": 11338, "name": "Address", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 12811, "src": "1137:7:100", "typeDescriptions": { "typeIdentifier": "t_contract$_Address_$12811", "typeString": "library Address" } }, "nodeType": "UsingForDirective", "src": "1131:26:100", "typeName": { "id": 11339, "name": "address", "nodeType": "ElementaryTypeName", "src": "1149:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, { "constant": true, "id": 11345, "mutability": "constant", "name": "_ERC1820_REGISTRY", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "1163:115:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC1820Registry_$2152", "typeString": "contract IERC1820Registry" }, "typeName": { "contractScope": null, "id": 11341, "name": "IERC1820Registry", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2152, "src": "1163:16:100", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC1820Registry_$2152", "typeString": "contract IERC1820Registry" } }, "value": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "307831383230613442373631384264453731446365386364633733614142364339353930356661443234", "id": 11343, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1235:42:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "value": "0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 11342, "name": "IERC1820Registry", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2152, "src": "1218:16:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC1820Registry_$2152_$", "typeString": "type(contract IERC1820Registry)" } }, "id": 11344, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1218:60:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_contract$_IERC1820Registry_$2152", "typeString": "contract IERC1820Registry" } }, "visibility": "internal" }, { "constant": false, "id": 11349, "mutability": "mutable", "name": "_balances", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "1285:45:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "typeName": { "id": 11348, "keyType": { "id": 11346, "name": "address", "nodeType": "ElementaryTypeName", "src": "1293:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "1285:27:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 11347, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1304:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "private" }, { "constant": false, "id": 11351, "mutability": "mutable", "name": "_totalSupply", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "1337:28:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 11350, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1337:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "private" }, { "constant": false, "id": 11353, "mutability": "mutable", "name": "_name", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "1372:20:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string" }, "typeName": { "id": 11352, "name": "string", "nodeType": "ElementaryTypeName", "src": "1372:6:100", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "private" }, { "constant": false, "id": 11355, "mutability": "mutable", "name": "_symbol", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "1398:22:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string" }, "typeName": { "id": 11354, "name": "string", "nodeType": "ElementaryTypeName", "src": "1398:6:100", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "private" }, { "constant": true, "id": 11358, "mutability": "constant", "name": "_TOKENS_SENDER_INTERFACE_HASH", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "1635:131:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 11356, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1635:7:100", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": { "argumentTypes": null, "hexValue": "307832396464623538396231666235666337636633393439363163316164663566386336343534373631616466373935653637666531343966363538616265383935", "id": 11357, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1700:66:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18936552921575092301472466748482491067159488139731697543124572343800628504725_by_1", "typeString": "int_const 1893...(69 digits omitted)...4725" }, "value": "0x29ddb589b1fb5fc7cf394961c1adf5f8c6454761adf795e67fe149f658abe895" }, "visibility": "private" }, { "constant": true, "id": 11361, "mutability": "constant", "name": "_TOKENS_RECIPIENT_INTERFACE_HASH", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "1815:134:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 11359, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1815:7:100", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": { "argumentTypes": null, "hexValue": "307862323831666338633132393534643232353434646234356465333135396133393237323839356231363961383532623331346639636337363265343463353362", "id": 11360, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1883:66:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_80741353335606793576644178559265408063696393279619534167571325834855102858555_by_1", "typeString": "int_const 8074...(69 digits omitted)...8555" }, "value": "0xb281fc8c12954d22544db45de3159a39272895b169a852b314f9cc762e44c53b" }, "visibility": "private" }, { "constant": false, "id": 11364, "mutability": "mutable", "name": "_defaultOperatorsArray", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "2048:40:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_address_$dyn_storage", "typeString": "address[]" }, "typeName": { "baseType": { "id": 11362, "name": "address", "nodeType": "ElementaryTypeName", "src": "2048:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 11363, "length": null, "nodeType": "ArrayTypeName", "src": "2048:9:100", "typeDescriptions": { "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr", "typeString": "address[]" } }, "value": null, "visibility": "private" }, { "constant": false, "id": 11368, "mutability": "mutable", "name": "_defaultOperators", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "2182:50:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "typeName": { "id": 11367, "keyType": { "id": 11365, "name": "address", "nodeType": "ElementaryTypeName", "src": "2190:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "2182:24:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "valueType": { "id": 11366, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2201:4:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } }, "value": null, "visibility": "private" }, { "constant": false, "id": 11374, "mutability": "mutable", "name": "_operators", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "2322:63:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" }, "typeName": { "id": 11373, "keyType": { "id": 11369, "name": "address", "nodeType": "ElementaryTypeName", "src": "2330:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "2322:44:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" }, "valueType": { "id": 11372, "keyType": { "id": 11370, "name": "address", "nodeType": "ElementaryTypeName", "src": "2349:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "2341:24:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "valueType": { "id": 11371, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2360:4:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } } }, "value": null, "visibility": "private" }, { "constant": false, "id": 11380, "mutability": "mutable", "name": "_revokedDefaultOperators", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "2391:77:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" }, "typeName": { "id": 11379, "keyType": { "id": 11375, "name": "address", "nodeType": "ElementaryTypeName", "src": "2399:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "2391:44:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_bool_$_$", "typeString": "mapping(address => mapping(address => bool))" }, "valueType": { "id": 11378, "keyType": { "id": 11376, "name": "address", "nodeType": "ElementaryTypeName", "src": "2418:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "2410:24:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" }, "valueType": { "id": 11377, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2429:4:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } } }, "value": null, "visibility": "private" }, { "constant": false, "id": 11386, "mutability": "mutable", "name": "_allowances", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12417, "src": "2499:69:100", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" }, "typeName": { "id": 11385, "keyType": { "id": 11381, "name": "address", "nodeType": "ElementaryTypeName", "src": "2508:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "2499:49:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" }, "valueType": { "id": 11384, "keyType": { "id": 11382, "name": "address", "nodeType": "ElementaryTypeName", "src": "2528:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "2519:28:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" }, "valueType": { "id": 11383, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2539:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } } }, "value": null, "visibility": "private" }, { "body": { "id": 11462, "nodeType": "Block", "src": "2764:497:100", "statements": [ { "expression": { "argumentTypes": null, "id": 11399, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 11397, "name": "_name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11353, "src": "2774:5:100", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 11398, "name": "name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11389, "src": "2782:4:100", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "2774:12:100", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 11400, "nodeType": "ExpressionStatement", "src": "2774:12:100" }, { "expression": { "argumentTypes": null, "id": 11403, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 11401, "name": "_symbol", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11355, "src": "2796:7:100", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 11402, "name": "symbol", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11391, "src": "2806:6:100", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } }, "src": "2796:16:100", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "id": 11404, "nodeType": "ExpressionStatement", "src": "2796:16:100" }, { "expression": { "argumentTypes": null, "id": 11407, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 11405, "name": "_defaultOperatorsArray", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11364, "src": "2823:22:100", "typeDescriptions": { "typeIdentifier": "t_array$_t_address_$dyn_storage", "typeString": "address[] storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 11406, "name": "defaultOperators", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11394, "src": "2848:16:100", "typeDescriptions": { "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr", "typeString": "address[] memory" } }, "src": "2823:41:100", "typeDescriptions": { "typeIdentifier": "t_array$_t_address_$dyn_storage", "typeString": "address[] storage ref" } }, "id": 11408, "nodeType": "ExpressionStatement", "src": "2823:41:100" }, { "body": { "id": 11428, "nodeType": "Block", "src": "2934:76:100", "statements": [ { "expression": { "argumentTypes": null, "id": 11426, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 11420, "name": "_defaultOperators", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11368, "src": "2948:17:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bool_$", "typeString": "mapping(address => bool)" } }, "id": 11424, "indexExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 11421, 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"rightHandSide": { "argumentTypes": null, "hexValue": "74727565", "id": 11425, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "2995:4:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "src": "2948:51:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 11427, "nodeType": "ExpressionStatement", "src": "2948:51:100" } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 11416, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 11413, "name": "i", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11410, "src": "2894:1:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": 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11429, "src": "2879:9:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 11409, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2879:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 11412, "initialValue": { "argumentTypes": null, "hexValue": "30", "id": 11411, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2891:1:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "nodeType": "VariableDeclarationStatement", "src": "2879:13:100" }, "loopExpression": { "expression": { "argumentTypes": null, "id": 11418, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": 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"typeString": "contract ERC777" } ], "id": 11434, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3093:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 11433, "name": "address", "nodeType": "ElementaryTypeName", "src": "3093:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 11436, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3093:13:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "455243373737546f6b656e", "id": 11438, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3118:13:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ac7fbab5f54a3ca8194167523c6753bfeb96a445279294b6125b68cce2177054", "typeString": "literal_string \"ERC777Token\"" }, "value": "ERC777Token" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_ac7fbab5f54a3ca8194167523c6753bfeb96a445279294b6125b68cce2177054", "typeString": "literal_string \"ERC777Token\"" } ], "id": 11437, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -8, "src": "3108:9:100", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 11439, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3108:24:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 11442, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "3142:4:100", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC777_$12417", "typeString": "contract ERC777" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_ERC777_$12417", "typeString": "contract ERC777" } ], "id": 11441, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3134:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 11440, "name": "address", "nodeType": "ElementaryTypeName", "src": "3134:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 11443, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3134:13:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "expression": { "argumentTypes": null, "id": 11430, "name": "_ERC1820_REGISTRY", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11345, "src": "3051:17:100", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC1820Registry_$2152", "typeString": "contract IERC1820Registry" } }, "id": 11432, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "setInterfaceImplementer", "nodeType": "MemberAccess", "referencedDeclaration": 2091, "src": "3051:41:100", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_bytes32_$_t_address_$returns$__$", "typeString": "function (address,bytes32,address) external" } }, "id": 11444, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3051:97:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 11445, "nodeType": "ExpressionStatement", "src": "3051:97:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 11451, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "3208:4:100", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC777_$12417", "typeString": "contract ERC777" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_ERC777_$12417", "typeString": "contract ERC777" } ], "id": 11450, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3200:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 11449, "name": "address", "nodeType": "ElementaryTypeName", "src": "3200:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 11452, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3200:13:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "4552433230546f6b656e", "id": 11454, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3225:12:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_aea199e31a596269b42cdafd93407f14436db6e4cad65417994c2eb37381e05a", "typeString": "literal_string \"ERC20Token\"" }, "value": "ERC20Token" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_aea199e31a596269b42cdafd93407f14436db6e4cad65417994c2eb37381e05a", "typeString": "literal_string \"ERC20Token\"" } ], "id": 11453, "name": "keccak256", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -8, "src": "3215:9:100", "typeDescriptions": { "typeIdentifier": "t_function_keccak256_pure$_t_bytes_memory_ptr_$returns$_t_bytes32_$", "typeString": "function (bytes memory) pure returns (bytes32)" } }, "id": 11455, "isConstant": false, "isLValue": false, "isPure": true, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3215:23:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 11458, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "3248:4:100", "typeDescriptions": { "typeIdentifier": "t_contract$_ERC777_$12417", "typeString": "contract ERC777" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_ERC777_$12417", "typeString": "contract ERC777" } ], "id": 11457, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3240:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 11456, "name": "address", "nodeType": "ElementaryTypeName", "src": "3240:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 11459, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3240:13:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "expression": { "argumentTypes": null, "id": 11446, "name": "_ERC1820_REGISTRY", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11345, "src": "3158:17:100", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC1820Registry_$2152", "typeString": "contract IERC1820Registry" } }, "id": 11448, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "setInterfaceImplementer", "nodeType": "MemberAccess", "referencedDeclaration": 2091, "src": "3158:41:100", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_bytes32_$_t_address_$returns$__$", "typeString": "function (address,bytes32,address) external" } }, "id": 11460, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3158:96:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 11461, "nodeType": "ExpressionStatement", "src": "3158:96:100" } ] }, "documentation": { "id": 11387, "nodeType": "StructuredDocumentation", "src": "2575:65:100", "text": " @dev `defaultOperators` may be an empty array." }, "id": 11463, "implemented": true, "kind": "constructor", "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 11395, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11389, "mutability": "mutable", "name": "name", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11463, "src": "2666:18:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 11388, "name": "string", "nodeType": "ElementaryTypeName", "src": "2666:6:100", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11391, "mutability": "mutable", "name": "symbol", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11463, "src": "2694:20:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 11390, "name": "string", "nodeType": "ElementaryTypeName", "src": "2694:6:100", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11394, "mutability": "mutable", "name": "defaultOperators", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11463, "src": "2724:33:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_array$_t_address_$dyn_memory_ptr", "typeString": "address[]" }, "typeName": { "baseType": { "id": 11392, "name": "address", "nodeType": "ElementaryTypeName", "src": "2724:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 11393, "length": null, "nodeType": "ArrayTypeName", "src": "2724:9:100", "typeDescriptions": { "typeIdentifier": "t_array$_t_address_$dyn_storage_ptr", "typeString": "address[]" } }, "value": null, "visibility": "internal" } ], "src": "2656:107:100" }, "returnParameters": { "id": 11396, "nodeType": "ParameterList", "parameters": [], "src": "2764:0:100" }, "scope": 12417, "src": "2645:616:100", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 12426 ], "body": { "id": 11472, "nodeType": "Block", "src": "3376:29:100", "statements": [ { "expression": { "argumentTypes": null, "id": 11470, "name": "_name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11353, "src": "3393:5:100", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "functionReturnParameters": 11469, "id": 11471, "nodeType": "Return", "src": "3386:12:100" } ] }, "documentation": { "id": 11464, "nodeType": "StructuredDocumentation", "src": "3267:43:100", "text": " @dev See {IERC777-name}." }, "functionSelector": "06fdde03", "id": 11473, "implemented": true, "kind": "function", "modifiers": [], "name": "name", "nodeType": "FunctionDefinition", "overrides": { "id": 11466, "nodeType": "OverrideSpecifier", "overrides": [], "src": "3343:8:100" }, "parameters": { "id": 11465, "nodeType": "ParameterList", "parameters": [], "src": "3328:2:100" }, "returnParameters": { "id": 11469, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11468, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11473, "src": "3361:13:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 11467, "name": "string", "nodeType": "ElementaryTypeName", "src": "3361:6:100", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "3360:15:100" }, "scope": 12417, "src": "3315:90:100", "stateMutability": "view", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 12432 ], "body": { "id": 11482, "nodeType": "Block", "src": "3524:31:100", "statements": [ { "expression": { "argumentTypes": null, "id": 11480, "name": "_symbol", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11355, "src": "3541:7:100", "typeDescriptions": { "typeIdentifier": "t_string_storage", "typeString": "string storage ref" } }, "functionReturnParameters": 11479, "id": 11481, "nodeType": "Return", "src": "3534:14:100" } ] }, "documentation": { "id": 11474, "nodeType": "StructuredDocumentation", "src": "3411:45:100", "text": " @dev See {IERC777-symbol}." }, "functionSelector": "95d89b41", "id": 11483, "implemented": true, "kind": "function", "modifiers": [], "name": "symbol", "nodeType": "FunctionDefinition", "overrides": { "id": 11476, "nodeType": "OverrideSpecifier", "overrides": [], "src": "3491:8:100" }, "parameters": { "id": 11475, "nodeType": "ParameterList", "parameters": [], "src": "3476:2:100" }, "returnParameters": { "id": 11479, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11478, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11483, "src": "3509:13:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string" }, "typeName": { "id": 11477, "name": "string", "nodeType": "ElementaryTypeName", "src": "3509:6:100", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" } ], "src": "3508:15:100" }, "scope": 12417, "src": "3461:94:100", "stateMutability": "view", "virtual": false, "visibility": "public" }, { "body": { "id": 11491, "nodeType": "Block", "src": "3787:26:100", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "3138", "id": 11489, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3804:2:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "functionReturnParameters": 11488, "id": 11490, "nodeType": "Return", "src": "3797:9:100" } ] }, "documentation": { "id": 11484, "nodeType": "StructuredDocumentation", "src": "3561:173:100", "text": " @dev See {ERC20-decimals}.\n Always returns 18, as per the\n [ERC777 EIP](https://eips.ethereum.org/EIPS/eip-777#backward-compatibility)." }, "functionSelector": "313ce567", "id": 11492, "implemented": true, "kind": "function", "modifiers": [], "name": "decimals", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 11485, "nodeType": "ParameterList", "parameters": [], "src": "3756:2:100" }, "returnParameters": { "id": 11488, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11487, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11492, "src": "3780:5:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 11486, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "3780:5:100", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "value": null, "visibility": "internal" } ], "src": "3779:7:100" }, "scope": 12417, "src": "3739:74:100", "stateMutability": "pure", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 12438 ], "body": { "id": 11501, "nodeType": "Block", "src": "3990:25:100", "statements": [ { "expression": { "argumentTypes": null, "hexValue": "31", "id": 11499, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4007:1:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "functionReturnParameters": 11498, "id": 11500, "nodeType": "Return", "src": "4000:8:100" } ] }, "documentation": { "id": 11493, "nodeType": "StructuredDocumentation", "src": "3819:104:100", "text": " @dev See {IERC777-granularity}.\n This implementation always returns `1`." }, "functionSelector": "556f0dc7", "id": 11502, "implemented": true, "kind": "function", "modifiers": [], "name": "granularity", "nodeType": "FunctionDefinition", "overrides": { "id": 11495, "nodeType": "OverrideSpecifier", "overrides": [], "src": "3963:8:100" }, "parameters": { "id": 11494, "nodeType": "ParameterList", "parameters": [], "src": "3948:2:100" }, "returnParameters": { "id": 11498, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11497, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11502, "src": "3981:7:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 11496, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3981:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } 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"Literal", "src": "4707:4:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" } ], "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" }, { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 11541, "name": "_send", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12108, "src": "4658:5:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$_t_bool_$returns$__$", "typeString": "function 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"mutable", "name": "recipient", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11552, "src": "4577:17:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 11532, "name": "address", "nodeType": "ElementaryTypeName", "src": "4577:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11535, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11552, "src": "4596:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 11534, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4596:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11537, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11552, "src": "4612:17:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 11536, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4612:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "4576:54:100" }, "returnParameters": { "id": 11540, "nodeType": "ParameterList", "parameters": [], "src": "4648:0:100" }, "scope": 12417, "src": "4563:156:100", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "baseFunctions": [ 9728 ], "body": { "id": 11608, "nodeType": "Block", "src": "5034:347:100", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 11569, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 11564, "name": "recipient", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11555, "src": "5052:9:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 11567, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5073:1:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": 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operators may\n not have allowance, and accounts with allowance may not be operators\n themselves." }, "functionSelector": "dd62ed3e", "id": 11844, "implemented": true, "kind": "function", "modifiers": [], "name": "allowance", "nodeType": "FunctionDefinition", "overrides": { "id": 11833, "nodeType": "OverrideSpecifier", "overrides": [], "src": "8315:8:100" }, "parameters": { "id": 11832, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11829, "mutability": "mutable", "name": "holder", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11844, "src": "8270:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 11828, "name": "address", "nodeType": "ElementaryTypeName", "src": "8270:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { 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"typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 11864, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8661:32:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 11865, "nodeType": "ExpressionStatement", "src": "8661:32:100" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 11866, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "8710:4:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 11854, "id": 11867, "nodeType": "Return", "src": "8703:11:100" } ] }, "documentation": { "id": 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"t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11849, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11869, "src": "8566:13:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 11848, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8566:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "8548:32:100" }, "returnParameters": { "id": 11854, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11853, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11869, "src": "8606:4:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": 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"nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 11886, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "9229:1:100", "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": 11885, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9221:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 11884, "name": "address", "nodeType": "ElementaryTypeName", "src": "9221:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 11887, 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false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "9300:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 11894, "name": "address", "nodeType": "ElementaryTypeName", "src": "9300:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 11897, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9300:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "9290:20:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "4552433737373a207472616e736665722066726f6d20746865207a65726f2061646472657373", "id": 11899, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", 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"t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" } ], "id": 11907, "name": "_callTokensToSend", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12345, "src": "9405:17:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory)" } }, "id": 11914, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9405:61:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 11915, "nodeType": "ExpressionStatement", "src": "9405:61:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 11917, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11903, "src": "9483:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 11918, "name": "holder", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11872, "src": "9492:6:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 11919, "name": "recipient", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11874, "src": "9500:9:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 11920, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11876, "src": "9511:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "", "id": 11921, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "9519:2:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, "value": "" }, { "argumentTypes": null, "hexValue": "", "id": 11922, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "9523:2:100", "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_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" } ], "id": 11916, "name": "_move", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12255, "src": "9477:5:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory)" } }, "id": 11923, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9477:49:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 11924, "nodeType": "ExpressionStatement", "src": "9477:49:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 11926, "name": "holder", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11872, "src": "9545:6:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 11927, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11903, "src": "9553:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 11934, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11876, "src": "9595:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "4552433737373a207472616e7366657220616d6f756e74206578636565647320616c6c6f77616e6365", "id": 11935, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "9603:43:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_d8bf23f1408d4800b3aee66cb36df9b55f0e49735257afe214dda2085ed7cd5c", "typeString": "literal_string \"ERC777: transfer amount exceeds allowance\"" }, "value": "ERC777: transfer amount exceeds allowance" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_stringliteral_d8bf23f1408d4800b3aee66cb36df9b55f0e49735257afe214dda2085ed7cd5c", "typeString": "literal_string \"ERC777: transfer amount exceeds allowance\"" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 11928, "name": "_allowances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11386, "src": "9562:11:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 11930, "indexExpression": { "argumentTypes": null, "id": 11929, "name": "holder", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11872, "src": "9574:6:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "9562:19:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 11932, "indexExpression": { "argumentTypes": null, "id": 11931, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11903, "src": "9582:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "9562:28:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 11933, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2299, "src": "9562:32:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$_t_string_memory_ptr_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256,string memory) pure returns (uint256)" } }, "id": 11936, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9562:85:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 11925, "name": "_approve", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12300, "src": "9536:8:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 11937, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9536:112:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 11938, "nodeType": "ExpressionStatement", "src": "9536:112:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 11940, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11903, "src": "9679:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 11941, "name": "holder", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11872, "src": "9688:6:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 11942, "name": "recipient", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11874, "src": "9696:9:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 11943, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11876, "src": "9707:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "", "id": 11944, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "9715:2:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, "value": "" }, { "argumentTypes": null, "hexValue": "", "id": 11945, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "9719:2:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, "value": "" }, { "argumentTypes": null, "hexValue": "66616c7365", "id": 11946, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "9723:5:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 11939, "name": "_callTokensReceived", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12403, "src": "9659:19:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$_t_bool_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory,bool)" } }, "id": 11947, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "9659:70:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 11948, "nodeType": "ExpressionStatement", "src": "9659:70:100" }, { "expression": { "argumentTypes": null, "hexValue": "74727565", "id": 11949, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "9747:4:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "functionReturnParameters": 11881, "id": 11950, "nodeType": "Return", "src": "9740:11:100" } ] }, "documentation": { "id": 11870, "nodeType": "StructuredDocumentation", "src": "8726:355:100", "text": " @dev See {IERC20-transferFrom}.\n Note that operator and allowance concepts are orthogonal: operators cannot\n call `transferFrom` (unless they have allowance), and accounts with\n allowance cannot call `operatorSend` (unless they are operators).\n Emits {Sent}, {IERC20-Transfer} and {IERC20-Approval} events." }, "functionSelector": "23b872dd", "id": 11952, "implemented": true, "kind": "function", "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "overrides": { "id": 11878, "nodeType": "OverrideSpecifier", "overrides": [], "src": "9166:8:100" }, "parameters": { "id": 11877, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11872, "mutability": "mutable", "name": "holder", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11952, "src": "9108:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 11871, "name": "address", "nodeType": "ElementaryTypeName", "src": "9108:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11874, "mutability": "mutable", "name": "recipient", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11952, "src": "9124:17:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 11873, "name": "address", "nodeType": "ElementaryTypeName", "src": "9124:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11876, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11952, "src": "9143:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 11875, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "9143:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "9107:51:100" }, "returnParameters": { "id": 11881, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11880, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 11952, "src": "9184:4:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 11879, "name": "bool", "nodeType": "ElementaryTypeName", "src": "9184:4:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "9183:6:100" }, "scope": 12417, "src": "9086:672:100", "stateMutability": "nonpayable", "virtual": false, "visibility": "public" }, { "body": { "id": 12037, "nodeType": "Block", "src": "10489:564:100", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 11970, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 11965, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11955, "src": "10507:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 11968, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "10526:1:100", "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": 11967, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "10518:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 11966, "name": "address", "nodeType": "ElementaryTypeName", "src": "10518:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 11969, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10518:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "10507:21:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "4552433737373a206d696e7420746f20746865207a65726f2061646472657373", "id": 11971, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "10530:34:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_8ce4f759423d0a519cbdf8529f47ad13e03ab9baec6702bc39e1fd5147c7e080", "typeString": "literal_string \"ERC777: mint to the zero address\"" }, "value": "ERC777: mint to the zero address" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_8ce4f759423d0a519cbdf8529f47ad13e03ab9baec6702bc39e1fd5147c7e080", "typeString": "literal_string \"ERC777: mint to the zero address\"" } ], "id": 11964, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "10499:7:100", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 11972, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10499:66:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 11973, "nodeType": "ExpressionStatement", "src": "10499:66:100" }, { "assignments": [ 11975 ], "declarations": [ { "constant": false, "id": 11975, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12037, "src": "10576:16:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 11974, "name": "address", "nodeType": "ElementaryTypeName", "src": "10576:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 11978, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 11976, "name": "_msgSender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10, "src": "10595:10:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$", "typeString": "function () view returns (address payable)" } }, "id": 11977, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10595:12:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "nodeType": "VariableDeclarationStatement", "src": "10576:31:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 11980, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11975, "src": "10639:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 11983, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "10657:1:100", "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": 11982, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "10649:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 11981, "name": "address", "nodeType": "ElementaryTypeName", "src": "10649:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 11984, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10649:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 11985, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11955, "src": "10661:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 11986, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11957, "src": "10670:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 11979, "name": "_beforeTokenTransfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12416, "src": "10618:20:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,address,uint256)" } }, "id": 11987, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10618:59:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 11988, "nodeType": "ExpressionStatement", "src": "10618:59:100" }, { "expression": { "argumentTypes": null, "id": 11994, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 11989, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11351, "src": "10722:12:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 11992, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11957, "src": "10754:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 11990, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11351, "src": "10737:12:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 11991, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 2254, "src": "10737:16:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 11993, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10737:24:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "10722:39:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 11995, "nodeType": "ExpressionStatement", "src": "10722:39:100" }, { "expression": { "argumentTypes": null, "id": 12005, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 11996, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11349, "src": "10771:9:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 11998, "indexExpression": { "argumentTypes": null, "id": 11997, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11955, "src": "10781:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "10771:18:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12003, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11957, "src": "10815:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 11999, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11349, "src": "10792:9:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 12001, "indexExpression": { "argumentTypes": null, "id": 12000, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11955, "src": "10802:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "10792:18:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 12002, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 2254, "src": "10792:22:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 12004, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10792:30:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "10771:51:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 12006, "nodeType": "ExpressionStatement", "src": "10771:51:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12008, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11975, "src": "10853:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12011, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "10871:1:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 12010, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "10863:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12009, "name": "address", "nodeType": "ElementaryTypeName", "src": "10863:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12012, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10863:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 12013, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11955, "src": "10875:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12014, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11957, "src": "10884:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12015, "name": "userData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11959, "src": "10892:8:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12016, "name": "operatorData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11961, "src": "10902:12:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "hexValue": "74727565", "id": 12017, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "10916:4:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "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" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 12007, "name": "_callTokensReceived", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12403, "src": "10833:19:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$_t_bool_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory,bool)" } }, "id": 12018, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10833:88:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12019, "nodeType": "ExpressionStatement", "src": "10833:88:100" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12021, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11975, "src": "10944:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12022, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11955, "src": "10954:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12023, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11957, "src": "10963:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12024, "name": "userData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11959, "src": "10971:8:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12025, "name": "operatorData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11961, "src": "10981:12:100", "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" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 12020, "name": "Minted", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12551, "src": "10937:6:100", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,uint256,bytes memory,bytes memory)" } }, "id": 12026, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "10937:57:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12027, "nodeType": "EmitStatement", "src": "10932:62:100" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12031, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "11026:1:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 12030, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "11018:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12029, "name": "address", "nodeType": "ElementaryTypeName", "src": "11018:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12032, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11018:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 12033, "name": "account", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11955, "src": "11030:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12034, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11957, "src": "11039:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 12028, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9769, "src": "11009:8:100", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 12035, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11009:37:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12036, "nodeType": "EmitStatement", "src": "11004:42:100" } ] }, "documentation": { "id": 11953, "nodeType": "StructuredDocumentation", "src": "9764:559:100", "text": " @dev Creates `amount` tokens and assigns them to `account`, increasing\n the total supply.\n If a send hook is registered for `account`, the corresponding function\n will be called with `operator`, `data` and `operatorData`.\n See {IERC777Sender} and {IERC777Recipient}.\n Emits {Minted} and {IERC20-Transfer} events.\n Requirements\n - `account` cannot be the zero address.\n - if `account` is a contract, it must implement the {IERC777Recipient}\n interface." }, "id": 12038, "implemented": true, "kind": "function", "modifiers": [], "name": "_mint", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 11962, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 11955, "mutability": "mutable", "name": "account", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12038, "src": "10352:15:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 11954, "name": "address", "nodeType": "ElementaryTypeName", "src": "10352:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11957, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12038, "src": "10377:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 11956, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "10377:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11959, "mutability": "mutable", "name": "userData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12038, "src": "10401:21:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 11958, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "10401:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 11961, "mutability": "mutable", "name": "operatorData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12038, "src": "10432:25:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 11960, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "10432:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "10342:121:100" }, "returnParameters": { "id": 11963, "nodeType": "ParameterList", "parameters": [], "src": "10489:0:100" }, "scope": 12417, "src": "10328:725:100", "stateMutability": "nonpayable", "virtual": true, "visibility": "internal" }, { "body": { "id": 12107, "nodeType": "Block", "src": "11737:446:100", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 12060, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 12055, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12041, "src": "11755:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12058, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "11771:1:100", "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": 12057, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "11763:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12056, "name": "address", "nodeType": "ElementaryTypeName", "src": "11763:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12059, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11763:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "11755:18:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "4552433737373a2073656e642066726f6d20746865207a65726f2061646472657373", "id": 12061, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "11775:36:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_14f76295ace7a8386ec01140ee9cd688544ad4113a371d47f5a5fb46ac01c401", "typeString": "literal_string \"ERC777: send from the zero address\"" }, "value": "ERC777: send from the zero address" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_14f76295ace7a8386ec01140ee9cd688544ad4113a371d47f5a5fb46ac01c401", "typeString": "literal_string \"ERC777: send from the zero address\"" } ], "id": 12054, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "11747:7:100", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 12062, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11747:65:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12063, "nodeType": "ExpressionStatement", "src": "11747:65:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 12070, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 12065, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12043, "src": "11830:2:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12068, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "11844:1:100", "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": 12067, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "11836:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12066, "name": "address", "nodeType": "ElementaryTypeName", "src": "11836:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12069, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11836:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "11830:16:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "4552433737373a2073656e6420746f20746865207a65726f2061646472657373", "id": 12071, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "11848:34:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ed80ea5132cda6a72ccf7da466e28cf5f3b5c217583b1b7e92c137a9f3d6b4c3", "typeString": "literal_string \"ERC777: send to the zero address\"" }, "value": "ERC777: send to the zero address" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_ed80ea5132cda6a72ccf7da466e28cf5f3b5c217583b1b7e92c137a9f3d6b4c3", "typeString": "literal_string \"ERC777: send to the zero address\"" } ], "id": 12064, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "11822:7:100", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 12072, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11822:61:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12073, "nodeType": "ExpressionStatement", "src": "11822:61:100" }, { "assignments": [ 12075 ], "declarations": [ { "constant": false, "id": 12075, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12107, "src": "11894:16:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12074, "name": "address", "nodeType": "ElementaryTypeName", "src": "11894:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 12078, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 12076, "name": "_msgSender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10, "src": "11913:10:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$", "typeString": "function () view returns (address payable)" } }, "id": 12077, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11913:12:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "nodeType": "VariableDeclarationStatement", "src": "11894:31:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12080, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12075, "src": "11954:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12081, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12041, "src": "11964:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12082, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12043, "src": "11970:2:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12083, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12045, "src": "11974:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12084, "name": "userData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12047, "src": "11982:8:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12085, "name": "operatorData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12049, "src": "11992:12:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 12079, "name": "_callTokensToSend", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12345, "src": "11936:17:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory)" } }, "id": 12086, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11936:69:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12087, "nodeType": "ExpressionStatement", "src": "11936:69:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12089, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12075, "src": "12022:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12090, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12041, "src": "12032:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12091, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12043, "src": "12038:2:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12092, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12045, "src": "12042:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12093, "name": "userData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12047, "src": "12050:8:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12094, "name": "operatorData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12049, "src": "12060:12:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 12088, "name": "_move", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12255, "src": "12016:5:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory)" } }, "id": 12095, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12016:57:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12096, "nodeType": "ExpressionStatement", "src": "12016:57:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12098, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12075, "src": "12104:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12099, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12041, "src": "12114:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12100, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12043, "src": "12120:2:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12101, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12045, "src": "12124:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12102, "name": "userData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12047, "src": "12132:8:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12103, "name": "operatorData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12049, "src": "12142:12:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12104, "name": "requireReceptionAck", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12051, "src": "12156:19:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 12097, "name": "_callTokensReceived", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12403, "src": "12084:19:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$_t_bool_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory,bool)" } }, "id": 12105, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12084:92:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12106, "nodeType": "ExpressionStatement", "src": "12084:92:100" } ] }, "documentation": { "id": 12039, "nodeType": "StructuredDocumentation", "src": "11059:465:100", "text": " @dev Send tokens\n @param from address token holder address\n @param to address recipient address\n @param amount uint256 amount of tokens to transfer\n @param userData bytes extra information provided by the token holder (if any)\n @param operatorData bytes extra information provided by the operator (if any)\n @param requireReceptionAck if true, contract recipients are required to implement ERC777TokensRecipient" }, "id": 12108, "implemented": true, "kind": "function", "modifiers": [], "name": "_send", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12052, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12041, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12108, "src": "11553:12:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12040, "name": "address", "nodeType": "ElementaryTypeName", "src": "11553:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12043, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12108, "src": "11575:10:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12042, "name": "address", "nodeType": "ElementaryTypeName", "src": "11575:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12045, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12108, "src": "11595:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12044, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "11595:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12047, "mutability": "mutable", "name": "userData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12108, "src": "11619:21:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12046, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "11619:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12049, "mutability": "mutable", "name": "operatorData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12108, "src": "11650:25:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12048, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "11650:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12051, "mutability": "mutable", "name": "requireReceptionAck", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12108, "src": "11685:24:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 12050, "name": "bool", "nodeType": "ElementaryTypeName", "src": "11685:4:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "11543:172:100" }, "returnParameters": { "id": 12053, "nodeType": "ParameterList", "parameters": [], "src": "11737:0:100" }, "scope": 12417, "src": "11529:654:100", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 12193, "nodeType": "Block", "src": "12646:568:100", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 12126, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 12121, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12111, "src": "12664:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12124, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "12680:1:100", "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": 12123, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "12672:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12122, "name": "address", "nodeType": "ElementaryTypeName", "src": "12672:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12125, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12672:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "12664:18:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "4552433737373a206275726e2066726f6d20746865207a65726f2061646472657373", "id": 12127, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "12684:36:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_37e8d125f24ef45023ef8033e82467f588cec434263b3a6b98bcdb3eca4b768c", "typeString": "literal_string \"ERC777: burn from the zero address\"" }, "value": "ERC777: burn from the zero address" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_37e8d125f24ef45023ef8033e82467f588cec434263b3a6b98bcdb3eca4b768c", "typeString": "literal_string \"ERC777: burn from the zero address\"" } ], "id": 12120, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "12656:7:100", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 12128, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12656:65:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12129, "nodeType": "ExpressionStatement", "src": "12656:65:100" }, { "assignments": [ 12131 ], "declarations": [ { "constant": false, "id": 12131, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12193, "src": "12732:16:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12130, "name": "address", "nodeType": "ElementaryTypeName", "src": "12732:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 12134, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 12132, "name": "_msgSender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 10, "src": "12751:10:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$", "typeString": "function () view returns (address payable)" } }, "id": 12133, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12751:12:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "nodeType": "VariableDeclarationStatement", "src": "12732:31:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12136, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12131, "src": "12795:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12137, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12111, "src": "12805:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12140, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "12819:1:100", "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": 12139, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "12811:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12138, "name": "address", "nodeType": "ElementaryTypeName", "src": "12811:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12141, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12811:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 12142, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12113, "src": "12823:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 12135, "name": "_beforeTokenTransfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12416, "src": "12774:20:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,address,uint256)" } }, "id": 12143, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12774:56:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12144, "nodeType": "ExpressionStatement", "src": "12774:56:100" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12146, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12131, "src": "12859:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12147, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12111, "src": "12869:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12150, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "12883:1:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 12149, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "12875:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12148, "name": "address", "nodeType": "ElementaryTypeName", "src": "12875:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12151, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12875:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 12152, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12113, "src": "12887:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12153, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12115, "src": "12895:4:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12154, "name": "operatorData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12117, "src": "12901:12:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 12145, "name": "_callTokensToSend", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12345, "src": "12841:17:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory)" } }, "id": 12155, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12841:73:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12156, "nodeType": "ExpressionStatement", "src": "12841:73:100" }, { "expression": { "argumentTypes": null, "id": 12167, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 12157, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11349, "src": "12959:9:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 12159, "indexExpression": { "argumentTypes": null, "id": 12158, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12111, "src": "12969:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "12959:15:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12164, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12113, "src": "12997:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "4552433737373a206275726e20616d6f756e7420657863656564732062616c616e6365", "id": 12165, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "13005:37:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ecdeb627d2306b8b9bb34685df56bbf05cde6b7bc6e45e0248ca50c1b0bd3ebe", "typeString": "literal_string \"ERC777: burn amount exceeds balance\"" }, "value": "ERC777: burn amount exceeds balance" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_stringliteral_ecdeb627d2306b8b9bb34685df56bbf05cde6b7bc6e45e0248ca50c1b0bd3ebe", "typeString": "literal_string \"ERC777: burn amount exceeds balance\"" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 12160, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11349, "src": "12977:9:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 12162, "indexExpression": { "argumentTypes": null, "id": 12161, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12111, "src": "12987:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "12977:15:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 12163, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2299, "src": "12977:19:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$_t_string_memory_ptr_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256,string memory) pure returns (uint256)" } }, "id": 12166, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12977:66:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "12959:84:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 12168, "nodeType": "ExpressionStatement", "src": "12959:84:100" }, { "expression": { "argumentTypes": null, "id": 12174, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 12169, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11351, "src": "13053:12:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12172, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12113, "src": "13085:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 12170, "name": "_totalSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11351, "src": "13068:12:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 12171, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 2271, "src": "13068:16:100", "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": 12173, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "13068:24:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "13053:39:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 12175, "nodeType": "ExpressionStatement", "src": "13053:39:100" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12177, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12131, "src": "13115:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12178, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12111, "src": "13125:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12179, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12113, "src": "13131:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12180, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12115, "src": "13139:4:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12181, "name": "operatorData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12117, "src": "13145:12:100", "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" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 12176, "name": "Burned", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12563, "src": "13108:6:100", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,uint256,bytes memory,bytes memory)" } }, "id": 12182, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "13108:50:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12183, "nodeType": "EmitStatement", "src": "13103:55:100" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12185, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12111, "src": "13182:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12188, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "13196:1:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 12187, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "13188:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12186, "name": "address", "nodeType": "ElementaryTypeName", "src": "13188:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12189, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "13188:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 12190, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12113, "src": "13200:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 12184, "name": "Transfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9769, "src": "13173:8:100", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 12191, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "13173:34:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12192, "nodeType": "EmitStatement", "src": "13168:39:100" } ] }, "documentation": { "id": 12109, "nodeType": "StructuredDocumentation", "src": "12189:294:100", "text": " @dev Burn tokens\n @param from address token holder address\n @param amount uint256 amount of tokens to burn\n @param data bytes extra information provided by the token holder\n @param operatorData bytes extra information provided by the operator (if any)" }, "id": 12194, "implemented": true, "kind": "function", "modifiers": [], "name": "_burn", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12118, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12111, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12194, "src": "12512:12:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12110, "name": "address", "nodeType": "ElementaryTypeName", "src": "12512:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12113, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12194, "src": "12534:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12112, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "12534:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12115, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12194, "src": "12558:17:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12114, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "12558:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12117, "mutability": "mutable", "name": "operatorData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12194, "src": "12585:25:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12116, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "12585:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "12502:114:100" }, "returnParameters": { "id": 12119, "nodeType": "ParameterList", "parameters": [], "src": "12646:0:100" }, "scope": 12417, "src": "12488:726:100", "stateMutability": "nonpayable", "virtual": true, "visibility": "internal" }, { "body": { "id": 12254, "nodeType": "Block", "src": "13419:328:100", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12210, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12196, "src": "13450:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12211, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12198, "src": "13460:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12212, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12200, "src": "13466:2:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12213, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12202, "src": "13470:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 12209, "name": "_beforeTokenTransfer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12416, "src": "13429:20:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,address,uint256)" } }, "id": 12214, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "13429:48:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12215, "nodeType": "ExpressionStatement", "src": "13429:48:100" }, { "expression": { "argumentTypes": null, "id": 12226, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 12216, "name": "_balances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11349, "src": "13488:9:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 12218, "indexExpression": { "argumentTypes": null, "id": 12217, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12198, "src": "13498:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "13488:15:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12223, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12202, "src": "13526:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "4552433737373a207472616e7366657220616d6f756e7420657863656564732062616c616e6365", "id": 12224, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "13534:41:100", "subdenomination": null, "typeDescriptions": { "typeIdentifier": 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"overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "14050:7:100", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 12283, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14050:69:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12284, "nodeType": "ExpressionStatement", "src": "14050:69:100" }, { "expression": { "argumentTypes": null, "id": 12291, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 12285, "name": "_allowances", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11386, "src": "14130:11:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$", "typeString": "mapping(address => mapping(address => uint256))" } }, "id": 12288, "indexExpression": { "argumentTypes": null, "id": 12286, "name": "holder", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12258, "src": "14142:6:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "14130:19:100", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_uint256_$", "typeString": "mapping(address => uint256)" } }, "id": 12289, "indexExpression": { "argumentTypes": null, "id": 12287, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12260, "src": "14150:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "14130:28:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 12290, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12262, "src": "14161:5:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "14130:36:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 12292, "nodeType": "ExpressionStatement", "src": "14130:36:100" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12294, "name": "holder", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12258, "src": "14190:6:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12295, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12260, "src": "14198:7:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12296, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12262, "src": "14207:5:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 12293, "name": "Approval", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9778, "src": "14181:8:100", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256)" } }, "id": 12297, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14181:32:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12298, "nodeType": "EmitStatement", "src": "14176:37:100" } ] }, "documentation": { "id": 12256, "nodeType": "StructuredDocumentation", "src": "13753:127:100", "text": " @dev See {ERC20-_approve}.\n Note that accounts cannot have allowance issued by their operators." }, "id": 12300, "implemented": true, "kind": "function", "modifiers": [], "name": "_approve", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12263, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12258, "mutability": "mutable", "name": "holder", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12300, "src": "13903:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12257, "name": "address", "nodeType": "ElementaryTypeName", "src": "13903:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12260, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12300, "src": "13919:15:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12259, "name": "address", "nodeType": "ElementaryTypeName", "src": "13919:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12262, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12300, "src": "13936:13:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12261, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "13936:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "13902:48:100" }, "returnParameters": { "id": 12264, "nodeType": "ParameterList", "parameters": [], "src": "13960:0:100" }, "scope": 12417, "src": "13885:335:100", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 12344, "nodeType": "Block", "src": "14904:273:100", "statements": [ { "assignments": [ 12317 ], "declarations": [ { "constant": false, "id": 12317, "mutability": "mutable", "name": "implementer", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12344, "src": "14914:19:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12316, "name": "address", "nodeType": "ElementaryTypeName", "src": "14914:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 12323, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12320, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12305, "src": "14978:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12321, "name": "_TOKENS_SENDER_INTERFACE_HASH", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11358, "src": "14984:29:100", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "argumentTypes": null, "id": 12318, "name": "_ERC1820_REGISTRY", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11345, "src": "14936:17:100", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC1820Registry_$2152", "typeString": "contract IERC1820Registry" } }, "id": 12319, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "getInterfaceImplementer", "nodeType": "MemberAccess", "referencedDeclaration": 2101, "src": "14936:41:100", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_address_$_t_bytes32_$returns$_t_address_$", "typeString": "function (address,bytes32) view external returns (address)" } }, "id": 12322, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "14936:78:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "14914:100:100" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 12329, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 12324, "name": "implementer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12317, "src": "15028:11:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12327, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "15051:1:100", "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": 12326, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "15043:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12325, "name": "address", "nodeType": "ElementaryTypeName", "src": "15043:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12328, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15043:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "15028:25:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 12343, "nodeType": "IfStatement", "src": "15024:147:100", "trueBody": { "id": 12342, "nodeType": "Block", "src": "15055:116:100", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12334, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12303, "src": "15109:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12335, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12305, "src": "15119:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12336, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12307, "src": "15125:2:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12337, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12309, "src": "15129:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12338, "name": "userData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12311, "src": "15137:8:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12339, "name": "operatorData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12313, "src": "15147:12:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12331, "name": "implementer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12317, "src": "15083:11:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 12330, "name": "IERC777Sender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12616, "src": "15069:13:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC777Sender_$12616_$", "typeString": "type(contract IERC777Sender)" } }, "id": 12332, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15069:26:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_contract$_IERC777Sender_$12616", "typeString": "contract IERC777Sender" } }, "id": 12333, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "tokensToSend", "nodeType": "MemberAccess", "referencedDeclaration": 12615, "src": "15069:39:100", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory) external" } }, "id": 12340, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15069:91:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12341, "nodeType": "ExpressionStatement", "src": "15069:91:100" } ] } } ] }, "documentation": { "id": 12301, "nodeType": "StructuredDocumentation", "src": "14226:462:100", "text": " @dev Call from.tokensToSend() if the interface is registered\n @param operator address operator requesting the transfer\n @param from address token holder address\n @param to address recipient address\n @param amount uint256 amount of tokens to transfer\n @param userData bytes extra information provided by the token holder (if any)\n @param operatorData bytes extra information provided by the operator (if any)" }, "id": 12345, "implemented": true, "kind": "function", "modifiers": [], "name": "_callTokensToSend", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12314, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12303, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12345, "src": "14729:16:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12302, "name": "address", "nodeType": "ElementaryTypeName", "src": "14729:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12305, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12345, "src": "14755:12:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12304, "name": "address", "nodeType": "ElementaryTypeName", "src": "14755:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12307, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12345, "src": "14777:10:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12306, "name": "address", "nodeType": "ElementaryTypeName", "src": "14777:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12309, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12345, "src": "14797:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12308, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "14797:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12311, "mutability": "mutable", "name": "userData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12345, "src": "14821:21:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12310, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "14821:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12313, "mutability": "mutable", "name": "operatorData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12345, "src": "14852:25:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12312, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "14852:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "14719:164:100" }, "returnParameters": { "id": 12315, "nodeType": "ParameterList", "parameters": [], "src": "14904:0:100" }, "scope": 12417, "src": "14693:484:100", "stateMutability": "nonpayable", "virtual": false, "visibility": "private" }, { "body": { "id": 12402, "nodeType": "Block", "src": "16113:441:100", "statements": [ { "assignments": [ 12364 ], "declarations": [ { "constant": false, "id": 12364, "mutability": "mutable", "name": "implementer", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12402, "src": "16123:19:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12363, "name": "address", "nodeType": "ElementaryTypeName", "src": "16123:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 12370, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12367, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12352, "src": "16187:2:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12368, "name": "_TOKENS_RECIPIENT_INTERFACE_HASH", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11361, "src": "16191:32:100", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "argumentTypes": null, "id": 12365, "name": "_ERC1820_REGISTRY", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 11345, "src": "16145:17:100", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC1820Registry_$2152", "typeString": "contract IERC1820Registry" } }, "id": 12366, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "getInterfaceImplementer", "nodeType": "MemberAccess", "referencedDeclaration": 2101, "src": "16145:41:100", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_address_$_t_bytes32_$returns$_t_address_$", "typeString": "function (address,bytes32) view external returns (address)" } }, "id": 12369, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16145:79:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "16123:101:100" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 12376, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 12371, "name": "implementer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12364, "src": "16238:11:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 12374, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16261:1:100", "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": 12373, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "16253:7:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 12372, "name": "address", "nodeType": "ElementaryTypeName", "src": "16253:7:100", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 12375, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16253:10:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "16238:25:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "condition": { "argumentTypes": null, "id": 12390, "name": "requireReceptionAck", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12360, "src": "16396:19:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 12400, "nodeType": "IfStatement", "src": "16392:156:100", "trueBody": { "id": 12399, "nodeType": "Block", "src": "16417:131:100", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12395, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "16439:16:100", "subExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 12392, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12352, "src": "16440:2:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 12393, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "isContract", "nodeType": "MemberAccess", "referencedDeclaration": 12636, "src": "16440:13:100", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$returns$_t_bool_$bound_to$_t_address_$", "typeString": "function (address) view returns (bool)" } }, "id": 12394, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16440:15:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": 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"name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "16431:7:100", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 12397, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16431:106:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12398, "nodeType": "ExpressionStatement", "src": "16431:106:100" } ] } }, "id": 12401, "nodeType": "IfStatement", "src": "16234:314:100", "trueBody": { "id": 12389, "nodeType": "Block", "src": "16265:121:100", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12381, "name": "operator", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12348, "src": "16324:8:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12382, "name": "from", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12350, "src": "16334:4:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12383, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12352, "src": "16340:2:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 12384, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12354, "src": "16344:6:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 12385, "name": "userData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12356, "src": "16352:8:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 12386, "name": "operatorData", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12358, "src": "16362:12:100", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 12378, "name": "implementer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12364, "src": "16296:11:100", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" } ], "id": 12377, "name": "IERC777Recipient", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12596, "src": "16279:16:100", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_IERC777Recipient_$12596_$", "typeString": "type(contract IERC777Recipient)" } }, "id": 12379, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16279:29:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_contract$_IERC777Recipient_$12596", "typeString": "contract IERC777Recipient" } }, "id": 12380, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "tokensReceived", "nodeType": "MemberAccess", "referencedDeclaration": 12595, "src": "16279:44:100", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (address,address,address,uint256,bytes memory,bytes memory) external" } }, "id": 12387, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16279:96:100", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 12388, "nodeType": "ExpressionStatement", "src": "16279:96:100" } ] } } ] }, "documentation": { "id": 12346, "nodeType": "StructuredDocumentation", "src": "15183:678:100", "text": " @dev Call to.tokensReceived() if the interface is registered. Reverts if the recipient is a contract but\n tokensReceived() was not registered for the recipient\n @param operator address operator requesting the transfer\n @param from address token holder address\n @param to address recipient address\n @param amount uint256 amount of tokens to transfer\n @param userData bytes extra information provided by the token holder (if any)\n @param operatorData bytes extra information provided by the operator (if any)\n @param requireReceptionAck if true, contract recipients are required to implement ERC777TokensRecipient" }, "id": 12403, "implemented": true, "kind": "function", "modifiers": [], "name": "_callTokensReceived", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12361, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12348, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12403, "src": "15904:16:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12347, "name": "address", "nodeType": "ElementaryTypeName", "src": "15904:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12350, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12403, "src": "15930:12:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12349, "name": "address", "nodeType": "ElementaryTypeName", "src": "15930:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12352, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12403, "src": "15952:10:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12351, "name": "address", "nodeType": "ElementaryTypeName", "src": "15952:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12354, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12403, "src": "15972:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12353, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "15972:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12356, "mutability": "mutable", "name": "userData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12403, "src": "15996:21:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12355, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "15996:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12358, "mutability": "mutable", "name": "operatorData", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12403, "src": "16027:25:100", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 12357, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "16027:5:100", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12360, "mutability": "mutable", "name": "requireReceptionAck", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12403, "src": "16062:24:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 12359, "name": "bool", "nodeType": "ElementaryTypeName", "src": "16062:4:100", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "15894:198:100" }, "returnParameters": { "id": 12362, "nodeType": "ParameterList", "parameters": [], "src": "16113:0:100" }, "scope": 12417, "src": "15866:688:100", "stateMutability": "nonpayable", "virtual": false, "visibility": "private" }, { "body": { "id": 12415, "nodeType": "Block", "src": "17289:3:100", "statements": [] }, "documentation": { "id": 12404, "nodeType": "StructuredDocumentation", "src": "16560:617:100", "text": " @dev Hook that is called before any token transfer. This includes\n calls to {send}, {transfer}, {operatorSend}, minting and burning.\n Calling conditions:\n - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n will be to transferred to `to`.\n - when `from` is zero, `amount` tokens will be minted for `to`.\n - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n - `from` and `to` are never both zero.\n To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]." }, "id": 12416, "implemented": true, "kind": "function", "modifiers": [], "name": "_beforeTokenTransfer", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 12413, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12406, "mutability": "mutable", "name": "operator", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12416, "src": "17212:16:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12405, "name": "address", "nodeType": "ElementaryTypeName", "src": "17212:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12408, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12416, "src": "17230:12:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12407, "name": "address", "nodeType": "ElementaryTypeName", "src": "17230:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12410, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12416, "src": "17244:10:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 12409, "name": "address", "nodeType": "ElementaryTypeName", "src": "17244:7:100", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 12412, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 12416, "src": "17256:14:100", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 12411, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "17256:7:100", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "17211:60:100" }, "returnParameters": { "id": 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