{ "id": "da6b4885a428a0dfcb585c755b53df0b", "_format": "hh-sol-build-info-1", "solcVersion": "0.6.11", "solcLongVersion": "0.6.11+commit.5ef660b1", "input": { "language": "Solidity", "sources": { "contracts/core/collateral-locker/v1/CollateralLocker.sol": { "content": "// SPDX-License-Identifier: AGPL-3.0-or-later // hevm: flattened sources of contracts/core/collateral-locker/v1/CollateralLocker.sol\npragma solidity =0.6.11 >=0.6.0 <0.8.0 >=0.6.2 <0.8.0;\n\n////// lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol\n/* pragma solidity >=0.6.0 <0.8.0; */\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `recipient`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `sender` to `recipient` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n\n////// contracts/core/collateral-locker/v1/interfaces/ICollateralLocker.sol\n/* pragma solidity 0.6.11; */\n\n/* import { IERC20 } from \"../../../../../lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol\"; */\n\n/// @title CollateralLocker holds custody of Collateral Asset for Loans.\ninterface ICollateralLocker {\n\n /**\n @dev The address the Collateral Asset the Loan is collateralized with.\n */\n function collateralAsset() external view returns (IERC20);\n\n /**\n @dev The Loan contract address this CollateralLocker is attached to.\n */\n function loan() external view returns (address);\n\n /**\n @dev Transfers `amt` of Collateral Asset to `dst`. \n @dev Only the Loan can call this function. \n @param dst The destination to transfer Collateral Asset to.\n @param amt The amount of Collateral Asset to transfer.\n */\n function pull(address dst, uint256 amt) external;\n\n}\n\n////// lib/openzeppelin-contracts/contracts/math/SafeMath.sol\n/* pragma solidity >=0.6.0 <0.8.0; */\n\n/**\n * @dev Wrappers over Solidity's arithmetic operations with added overflow\n * checks.\n *\n * Arithmetic operations in Solidity wrap on overflow. This can easily result\n * in bugs, because programmers usually assume that an overflow raises an\n * error, which is the standard behavior in high level programming languages.\n * `SafeMath` restores this intuition by reverting the transaction when an\n * operation overflows.\n *\n * Using this library instead of the unchecked operations eliminates an entire\n * class of bugs, so it's recommended to use it always.\n */\nlibrary SafeMath {\n /**\n * @dev Returns the addition of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `+` operator.\n *\n * Requirements:\n *\n * - Addition cannot overflow.\n */\n function add(uint256 a, uint256 b) internal pure returns (uint256) {\n uint256 c = a + b;\n require(c >= a, \"SafeMath: addition overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n *\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b) internal pure returns (uint256) {\n return sub(a, b, \"SafeMath: subtraction overflow\");\n }\n\n /**\n * @dev Returns the subtraction of two unsigned integers, reverting with custom message on\n * overflow (when the result is negative).\n *\n * Counterpart to Solidity's `-` operator.\n *\n * Requirements:\n *\n * - Subtraction cannot overflow.\n */\n function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n require(b <= a, errorMessage);\n uint256 c = a - b;\n\n return c;\n }\n\n /**\n * @dev Returns the multiplication of two unsigned integers, reverting on\n * overflow.\n *\n * Counterpart to Solidity's `*` operator.\n *\n * Requirements:\n *\n * - Multiplication cannot overflow.\n */\n function mul(uint256 a, uint256 b) internal pure returns (uint256) {\n // Gas optimization: this is cheaper than requiring 'a' not being zero, but the\n // benefit is lost if 'b' is also tested.\n // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522\n if (a == 0) {\n return 0;\n }\n\n uint256 c = a * b;\n require(c / a == b, \"SafeMath: multiplication overflow\");\n\n return c;\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b) internal pure returns (uint256) {\n return div(a, b, \"SafeMath: division by zero\");\n }\n\n /**\n * @dev Returns the integer division of two unsigned integers. Reverts with custom message on\n * division by zero. The result is rounded towards zero.\n *\n * Counterpart to Solidity's `/` operator. Note: this function uses a\n * `revert` opcode (which leaves remaining gas untouched) while Solidity\n * uses an invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n require(b > 0, errorMessage);\n uint256 c = a / b;\n // assert(a == b * c + a % b); // There is no case in which this doesn't hold\n\n return c;\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b) internal pure returns (uint256) {\n return mod(a, b, \"SafeMath: modulo by zero\");\n }\n\n /**\n * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),\n * Reverts with custom message when dividing by zero.\n *\n * Counterpart to Solidity's `%` operator. This function uses a `revert`\n * opcode (which leaves remaining gas untouched) while Solidity uses an\n * invalid opcode to revert (consuming all remaining gas).\n *\n * Requirements:\n *\n * - The divisor cannot be zero.\n */\n function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\n require(b != 0, errorMessage);\n return a % b;\n }\n}\n\n////// lib/openzeppelin-contracts/contracts/utils/Address.sol\n/* pragma solidity >=0.6.2 <0.8.0; */\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n // solhint-disable-next-line no-inline-assembly\n assembly { size := extcodesize(account) }\n return size > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n // solhint-disable-next-line avoid-low-level-calls, avoid-call-value\n (bool success, ) = recipient.call{ value: amount }(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain`call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n // solhint-disable-next-line avoid-low-level-calls\n (bool success, bytes memory returndata) = target.call{ value: value }(data);\n return _verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n // solhint-disable-next-line avoid-low-level-calls\n (bool success, bytes memory returndata) = target.staticcall(data);\n return _verifyCallResult(success, returndata, errorMessage);\n }\n\n function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n\n////// lib/openzeppelin-contracts/contracts/token/ERC20/SafeERC20.sol\n/* pragma solidity >=0.6.0 <0.8.0; */\n\n/* import \"./IERC20.sol\"; */\n/* import \"../../math/SafeMath.sol\"; */\n/* import \"../../utils/Address.sol\"; */\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n using SafeMath for uint256;\n using Address for address;\n\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n }\n\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n }\n\n /**\n * @dev Deprecated. This function has issues similar to the ones found in\n * {IERC20-approve}, and its usage is discouraged.\n *\n * Whenever possible, use {safeIncreaseAllowance} and\n * {safeDecreaseAllowance} instead.\n */\n function safeApprove(IERC20 token, address spender, uint256 value) internal {\n // safeApprove should only be called when setting an initial allowance,\n // or when resetting it to zero. To increase and decrease it, use\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n // solhint-disable-next-line max-line-length\n require((value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n }\n\n function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n uint256 newAllowance = token.allowance(address(this), spender).add(value);\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n }\n\n function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n uint256 newAllowance = token.allowance(address(this), spender).sub(value, \"SafeERC20: decreased allowance below zero\");\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n }\n\n /**\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n * @param token The token targeted by the call.\n * @param data The call data (encoded using abi.encode or one of its variants).\n */\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n // the target address contains contract code and also asserts for success in the low-level call.\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n if (returndata.length > 0) { // Return data is optional\n // solhint-disable-next-line max-line-length\n require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n }\n }\n}\n\n////// contracts/core/collateral-locker/v1/CollateralLocker.sol\n/* pragma solidity 0.6.11; */\n\n/* import { IERC20, SafeERC20 } from \"../../../../lib/openzeppelin-contracts/contracts/token/ERC20/SafeERC20.sol\"; */\n\n/* import { ICollateralLocker } from \"./interfaces/ICollateralLocker.sol\"; */\n\n/// @title CollateralLocker holds custody of Collateral Asset for Loans.\ncontract CollateralLocker is ICollateralLocker {\n\n using SafeERC20 for IERC20;\n\n IERC20 public override immutable collateralAsset;\n address public override immutable loan;\n\n constructor(address _collateralAsset, address _loan) public {\n collateralAsset = IERC20(_collateralAsset);\n loan = _loan;\n }\n\n /**\n @dev Checks that `msg.sender` is the Loan.\n */\n modifier isLoan() {\n require(msg.sender == loan, \"CL:NOT_L\");\n _;\n }\n\n function pull(address dst, uint256 amt) external override isLoan {\n collateralAsset.safeTransfer(dst, amt);\n }\n\n}\n" } }, "settings": { "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "abi", "evm.bytecode", "evm.deployedBytecode", "evm.methodIdentifiers" ], "": [ "ast" ] } } } }, "output": { "contracts": { "contracts/core/collateral-locker/v1/CollateralLocker.sol": { "Address": { "abi": [], "evm": { "bytecode": { "linkReferences": {}, "object": "60566023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220552313e66ee343a251992148a9589ac2b3c4fe0aef499497c4e9e898f9f8dd8964736f6c634300060b0033", "opcodes": "PUSH1 0x56 PUSH1 0x23 PUSH1 0xB DUP3 DUP3 DUP3 CODECOPY DUP1 MLOAD PUSH1 0x0 BYTE PUSH1 0x73 EQ PUSH1 0x16 JUMPI INVALID JUMPDEST ADDRESS PUSH1 0x0 MSTORE PUSH1 0x73 DUP2 MSTORE8 DUP3 DUP2 RETURN INVALID PUSH20 0x0 ADDRESS EQ PUSH1 0x80 PUSH1 0x40 MSTORE PUSH1 0x0 DUP1 REVERT INVALID LOG2 PUSH5 0x6970667358 0x22 SLT KECCAK256 SSTORE 0x23 SGT 0xE6 PUSH15 0xE343A251992148A9589AC2B3C4FE0A 0xEF 0x49 SWAP5 SWAP8 0xC4 0xE9 0xE8 SWAP9 0xF9 0xF8 0xDD DUP10 PUSH5 0x736F6C6343 STOP MOD SIGNEXTEND STOP CALLER ", "sourceMap": "9294:6704:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;" }, "deployedBytecode": { "immutableReferences": {}, "linkReferences": {}, "object": "73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220552313e66ee343a251992148a9589ac2b3c4fe0aef499497c4e9e898f9f8dd8964736f6c634300060b0033", "opcodes": "PUSH20 0x0 ADDRESS EQ PUSH1 0x80 PUSH1 0x40 MSTORE PUSH1 0x0 DUP1 REVERT INVALID LOG2 PUSH5 0x6970667358 0x22 SLT KECCAK256 SSTORE 0x23 SGT 0xE6 PUSH15 0xE343A251992148A9589AC2B3C4FE0A 0xEF 0x49 SWAP5 SWAP8 0xC4 0xE9 0xE8 SWAP9 0xF9 0xF8 0xDD DUP10 PUSH5 0x736F6C6343 STOP MOD SIGNEXTEND STOP CALLER ", "sourceMap": "9294:6704:0:-:0;;;;;;;;" }, "methodIdentifiers": {} } }, "CollateralLocker": { "abi": [ { "inputs": [ { "internalType": "address", "name": "_collateralAsset", "type": "address" }, { "internalType": "address", "name": "_loan", "type": "address" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "inputs": [], "name": "collateralAsset", "outputs": [ { "internalType": "contract IERC20", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "loan", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "dst", "type": "address" }, { "internalType": "uint256", "name": "amt", "type": "uint256" } ], "name": "pull", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "evm": { "bytecode": { "linkReferences": {}, "object": 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0xF2D5D56B EQ PUSH2 0x72 JUMPI JUMPDEST PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0x4E PUSH2 0xA0 JUMP JUMPDEST PUSH1 0x40 DUP1 MLOAD PUSH1 0x1 PUSH1 0x1 PUSH1 0xA0 SHL SUB SWAP1 SWAP3 AND DUP3 MSTORE MLOAD SWAP1 DUP2 SWAP1 SUB PUSH1 0x20 ADD SWAP1 RETURN JUMPDEST PUSH2 0x4E PUSH2 0xC4 JUMP JUMPDEST PUSH2 0x9E PUSH1 0x4 DUP1 CALLDATASIZE SUB PUSH1 0x40 DUP2 LT ISZERO PUSH2 0x88 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x1 PUSH1 0x1 PUSH1 0xA0 SHL SUB DUP2 CALLDATALOAD AND SWAP1 PUSH1 0x20 ADD CALLDATALOAD PUSH2 0xE8 JUMP JUMPDEST STOP JUMPDEST PUSH32 0x0 DUP2 JUMP JUMPDEST PUSH32 0x0 DUP2 JUMP JUMPDEST CALLER PUSH1 0x1 PUSH1 0x1 PUSH1 0xA0 SHL SUB PUSH32 0x0 AND EQ PUSH2 0x150 JUMPI PUSH1 0x40 DUP1 MLOAD PUSH3 0x461BCD PUSH1 0xE5 SHL DUP2 MSTORE PUSH1 0x20 PUSH1 0x4 DUP3 ADD MSTORE PUSH1 0x8 PUSH1 0x24 DUP3 ADD MSTORE PUSH8 0x10D30E9393D517D3 PUSH1 0xC2 SHL PUSH1 0x44 DUP3 ADD MSTORE SWAP1 MLOAD SWAP1 DUP2 SWAP1 SUB PUSH1 0x64 ADD SWAP1 REVERT JUMPDEST PUSH2 0x18A PUSH1 0x1 PUSH1 0x1 PUSH1 0xA0 SHL SUB PUSH32 0x0 AND DUP4 DUP4 PUSH4 0xFFFFFFFF PUSH2 0x18E AND JUMP JUMPDEST POP POP JUMP JUMPDEST PUSH1 0x40 DUP1 MLOAD PUSH1 0x1 PUSH1 0x1 PUSH1 0xA0 SHL SUB DUP5 AND PUSH1 0x24 DUP3 ADD MSTORE PUSH1 0x44 DUP1 DUP3 ADD DUP5 SWAP1 MSTORE DUP3 MLOAD DUP1 DUP4 SUB SWAP1 SWAP2 ADD DUP2 MSTORE PUSH1 0x64 SWAP1 SWAP2 ADD SWAP1 SWAP2 MSTORE PUSH1 0x20 DUP2 ADD DUP1 MLOAD PUSH1 0x1 PUSH1 0x1 PUSH1 0xE0 SHL SUB AND PUSH4 0xA9059CBB PUSH1 0xE0 SHL OR SWAP1 MSTORE PUSH2 0x1E0 SWAP1 DUP5 SWAP1 PUSH2 0x1E5 JUMP JUMPDEST POP POP POP JUMP JUMPDEST PUSH1 0x60 PUSH2 0x23A DUP3 PUSH1 0x40 MLOAD DUP1 PUSH1 0x40 ADD PUSH1 0x40 MSTORE DUP1 PUSH1 0x20 DUP2 MSTORE PUSH1 0x20 ADD PUSH32 0x5361666545524332303A206C6F772D6C6576656C2063616C6C206661696C6564 DUP2 MSTORE POP DUP6 PUSH1 0x1 PUSH1 0x1 PUSH1 0xA0 SHL SUB AND PUSH2 0x296 SWAP1 SWAP3 SWAP2 SWAP1 PUSH4 0xFFFFFFFF AND JUMP JUMPDEST DUP1 MLOAD SWAP1 SWAP2 POP ISZERO PUSH2 0x1E0 JUMPI DUP1 DUP1 PUSH1 0x20 ADD SWAP1 MLOAD PUSH1 0x20 DUP2 LT ISZERO PUSH2 0x259 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP MLOAD PUSH2 0x1E0 JUMPI PUSH1 0x40 MLOAD PUSH3 0x461BCD PUSH1 0xE5 SHL DUP2 MSTORE PUSH1 0x4 ADD DUP1 DUP1 PUSH1 0x20 ADD DUP3 DUP2 SUB DUP3 MSTORE PUSH1 0x2A DUP2 MSTORE PUSH1 0x20 ADD DUP1 PUSH2 0x4DC PUSH1 0x2A SWAP2 CODECOPY PUSH1 0x40 ADD SWAP2 POP POP PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 REVERT JUMPDEST PUSH1 0x60 PUSH2 0x2A5 DUP5 DUP5 PUSH1 0x0 DUP6 PUSH2 0x2AF JUMP JUMPDEST SWAP1 POP JUMPDEST SWAP4 SWAP3 POP POP POP JUMP JUMPDEST PUSH1 0x60 DUP3 SELFBALANCE LT ISZERO PUSH2 0x2F0 JUMPI PUSH1 0x40 MLOAD PUSH3 0x461BCD PUSH1 0xE5 SHL DUP2 MSTORE PUSH1 0x4 ADD DUP1 DUP1 PUSH1 0x20 ADD DUP3 DUP2 SUB DUP3 MSTORE PUSH1 0x26 DUP2 MSTORE PUSH1 0x20 ADD DUP1 PUSH2 0x4B6 PUSH1 0x26 SWAP2 CODECOPY PUSH1 0x40 ADD SWAP2 POP POP PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 REVERT JUMPDEST PUSH2 0x2F9 DUP6 PUSH2 0x40B JUMP JUMPDEST PUSH2 0x34A JUMPI PUSH1 0x40 DUP1 MLOAD PUSH3 0x461BCD PUSH1 0xE5 SHL DUP2 MSTORE PUSH1 0x20 PUSH1 0x4 DUP3 ADD MSTORE PUSH1 0x1D PUSH1 0x24 DUP3 ADD MSTORE PUSH32 0x416464726573733A2063616C6C20746F206E6F6E2D636F6E7472616374000000 PUSH1 0x44 DUP3 ADD MSTORE SWAP1 MLOAD SWAP1 DUP2 SWAP1 SUB PUSH1 0x64 ADD SWAP1 REVERT JUMPDEST PUSH1 0x0 PUSH1 0x60 DUP7 PUSH1 0x1 PUSH1 0x1 PUSH1 0xA0 SHL SUB AND DUP6 DUP8 PUSH1 0x40 MLOAD DUP1 DUP3 DUP1 MLOAD SWAP1 PUSH1 0x20 ADD SWAP1 DUP1 DUP4 DUP4 JUMPDEST PUSH1 0x20 DUP4 LT PUSH2 0x389 JUMPI DUP1 MLOAD DUP3 MSTORE PUSH1 0x1F NOT SWAP1 SWAP3 ADD SWAP2 PUSH1 0x20 SWAP2 DUP3 ADD SWAP2 ADD PUSH2 0x36A JUMP JUMPDEST PUSH1 0x1 DUP4 PUSH1 0x20 SUB PUSH2 0x100 EXP SUB DUP1 NOT DUP3 MLOAD AND DUP2 DUP5 MLOAD AND DUP1 DUP3 OR DUP6 MSTORE POP POP POP POP POP POP SWAP1 POP ADD SWAP2 POP POP PUSH1 0x0 PUSH1 0x40 MLOAD DUP1 DUP4 SUB DUP2 DUP6 DUP8 GAS CALL SWAP3 POP POP POP RETURNDATASIZE DUP1 PUSH1 0x0 DUP2 EQ PUSH2 0x3EB JUMPI PUSH1 0x40 MLOAD SWAP2 POP PUSH1 0x1F NOT PUSH1 0x3F RETURNDATASIZE ADD AND DUP3 ADD PUSH1 0x40 MSTORE RETURNDATASIZE DUP3 MSTORE RETURNDATASIZE PUSH1 0x0 PUSH1 0x20 DUP5 ADD RETURNDATACOPY PUSH2 0x3F0 JUMP JUMPDEST PUSH1 0x60 SWAP2 POP JUMPDEST POP SWAP2 POP SWAP2 POP PUSH2 0x400 DUP3 DUP3 DUP7 PUSH2 0x411 JUMP JUMPDEST SWAP8 SWAP7 POP POP POP POP POP POP POP JUMP JUMPDEST EXTCODESIZE ISZERO ISZERO SWAP1 JUMP JUMPDEST PUSH1 0x60 DUP4 ISZERO PUSH2 0x420 JUMPI POP DUP2 PUSH2 0x2A8 JUMP JUMPDEST DUP3 MLOAD ISZERO PUSH2 0x430 JUMPI DUP3 MLOAD DUP1 DUP5 PUSH1 0x20 ADD REVERT JUMPDEST DUP2 PUSH1 0x40 MLOAD PUSH3 0x461BCD PUSH1 0xE5 SHL DUP2 MSTORE PUSH1 0x4 ADD DUP1 DUP1 PUSH1 0x20 ADD DUP3 DUP2 SUB DUP3 MSTORE DUP4 DUP2 DUP2 MLOAD DUP2 MSTORE PUSH1 0x20 ADD SWAP2 POP DUP1 MLOAD SWAP1 PUSH1 0x20 ADD SWAP1 DUP1 DUP4 DUP4 PUSH1 0x0 JUMPDEST DUP4 DUP2 LT ISZERO PUSH2 0x47A JUMPI DUP2 DUP2 ADD MLOAD DUP4 DUP3 ADD MSTORE PUSH1 0x20 ADD PUSH2 0x462 JUMP JUMPDEST POP POP POP POP SWAP1 POP SWAP1 DUP2 ADD SWAP1 PUSH1 0x1F AND DUP1 ISZERO PUSH2 0x4A7 JUMPI DUP1 DUP3 SUB DUP1 MLOAD PUSH1 0x1 DUP4 PUSH1 0x20 SUB PUSH2 0x100 EXP SUB NOT AND DUP2 MSTORE PUSH1 0x20 ADD SWAP2 POP JUMPDEST POP SWAP3 POP POP POP PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 REVERT INVALID COINBASE PUSH5 0x6472657373 GASPRICE KECCAK256 PUSH10 0x6E73756666696369656E PUSH21 0x2062616C616E636520666F722063616C6C53616665 GASLIMIT MSTORE NUMBER ORIGIN ADDRESS GASPRICE KECCAK256 GASLIMIT MSTORE NUMBER ORIGIN ADDRESS KECCAK256 PUSH16 0x7065726174696F6E20646964206E6F74 KECCAK256 PUSH20 0x756363656564A2646970667358221220D61860CE AND PUSH7 0xC501E71244341B LOG3 POP GASPRICE 0xD1 DUP15 PUSH30 0xA4514AB03F24CE6FA2D077DE9564736F6C634300060B0033000000000000 ", "sourceMap": "20149:626:0:-:0;;;20336:152;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-1:-1:-1;20336:152:0;;;;;;;-1:-1:-1;;;;;;20406:42:0;;;;;;;;20458:23;;;;;20149:626;;;;;;;;;;;;;;;;" }, "deployedBytecode": { "immutableReferences": { "752": [ { "length": 32, "start": 162 }, { "length": 32, "start": 349 } ], "755": [ { "length": 32, "start": 198 }, { "length": 32, "start": 243 } ] }, "linkReferences": {}, 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MLOAD PUSH3 0x461BCD PUSH1 0xE5 SHL DUP2 MSTORE PUSH1 0x20 PUSH1 0x4 DUP3 ADD MSTORE PUSH1 0x8 PUSH1 0x24 DUP3 ADD MSTORE PUSH8 0x10D30E9393D517D3 PUSH1 0xC2 SHL PUSH1 0x44 DUP3 ADD MSTORE SWAP1 MLOAD SWAP1 DUP2 SWAP1 SUB PUSH1 0x64 ADD SWAP1 REVERT JUMPDEST PUSH2 0x18A PUSH1 0x1 PUSH1 0x1 PUSH1 0xA0 SHL SUB PUSH32 0x0 AND DUP4 DUP4 PUSH4 0xFFFFFFFF PUSH2 0x18E AND JUMP JUMPDEST POP POP JUMP JUMPDEST PUSH1 0x40 DUP1 MLOAD PUSH1 0x1 PUSH1 0x1 PUSH1 0xA0 SHL SUB DUP5 AND PUSH1 0x24 DUP3 ADD MSTORE PUSH1 0x44 DUP1 DUP3 ADD DUP5 SWAP1 MSTORE DUP3 MLOAD DUP1 DUP4 SUB SWAP1 SWAP2 ADD DUP2 MSTORE PUSH1 0x64 SWAP1 SWAP2 ADD SWAP1 SWAP2 MSTORE PUSH1 0x20 DUP2 ADD DUP1 MLOAD PUSH1 0x1 PUSH1 0x1 PUSH1 0xE0 SHL SUB AND PUSH4 0xA9059CBB PUSH1 0xE0 SHL OR SWAP1 MSTORE PUSH2 0x1E0 SWAP1 DUP5 SWAP1 PUSH2 0x1E5 JUMP JUMPDEST POP POP POP JUMP JUMPDEST PUSH1 0x60 PUSH2 0x23A DUP3 PUSH1 0x40 MLOAD DUP1 PUSH1 0x40 ADD PUSH1 0x40 MSTORE DUP1 PUSH1 0x20 DUP2 MSTORE PUSH1 0x20 ADD PUSH32 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}, "methodIdentifiers": { "collateralAsset()": "aabaecd6", "loan()": "d285b7b4", "pull(address,uint256)": "f2d5d56b" } } }, "ICollateralLocker": { "abi": [ { "inputs": [], "name": "collateralAsset", "outputs": [ { "internalType": "contract IERC20", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "loan", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "dst", "type": "address" }, { "internalType": "uint256", "name": "amt", "type": "uint256" } ], "name": "pull", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "evm": { "bytecode": { "linkReferences": {}, "object": "", "opcodes": "", "sourceMap": "" }, "deployedBytecode": { "immutableReferences": {}, "linkReferences": {}, "object": "", "opcodes": "", "sourceMap": "" }, "methodIdentifiers": { "collateralAsset()": "aabaecd6", 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"stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "approve", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "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" } ], 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}, "value": null, "visibility": "internal" }, { "constant": false, "id": 21, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 26, "src": "923:14:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 20, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "923:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "903:35:0" }, "returnParameters": { "id": 25, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 24, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 26, "src": "957:4:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 23, "name": "bool", "nodeType": "ElementaryTypeName", "src": "957:4:0", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "956:6:0" }, "scope": 77, "src": "886:77:0", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "body": null, "documentation": { "id": 27, "nodeType": "StructuredDocumentation", "src": "969:264:0", "text": " @dev Returns the remaining number of tokens that `spender` will be\n allowed to spend on behalf of `owner` through {transferFrom}. This is\n zero by default.\n This value changes when {approve} or {transferFrom} are called." }, "functionSelector": "dd62ed3e", "id": 36, "implemented": false, "kind": "function", "modifiers": [], "name": "allowance", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 32, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 29, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 36, "src": "1257:13:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 28, "name": "address", "nodeType": "ElementaryTypeName", "src": "1257:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 31, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "overrides": null, "scope": 36, "src": "1272:15:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 30, "name": "address", "nodeType": "ElementaryTypeName", "src": "1272:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1256:32:0" }, "returnParameters": { "id": 35, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 34, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 36, "src": "1312:7:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 33, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1312:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1311:9:0" }, "scope": 77, "src": "1238:83:0", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "body": null, "documentation": { "id": 37, "nodeType": "StructuredDocumentation", "src": "1327:642:0", "text": " @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n Returns a boolean value indicating whether the operation succeeded.\n IMPORTANT: Beware that changing an allowance with this method brings the risk\n that someone may use both the old and the new allowance by unfortunate\n transaction ordering. One possible solution to mitigate this race\n condition is to first reduce the spender's allowance to 0 and set the\n desired value afterwards:\n https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n Emits an {Approval} event." }, "functionSelector": "095ea7b3", "id": 46, "implemented": false, "kind": "function", "modifiers": [], "name": "approve", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 42, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 39, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "overrides": null, "scope": 46, "src": "1991:15:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 38, "name": "address", "nodeType": "ElementaryTypeName", "src": "1991:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 41, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 46, "src": "2008:14:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 40, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2008:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1990:33:0" }, "returnParameters": { "id": 45, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 44, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 46, "src": "2042:4:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 43, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2042:4:0", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "2041:6:0" }, "scope": 77, "src": "1974:74:0", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "body": null, "documentation": { "id": 47, "nodeType": "StructuredDocumentation", "src": "2054:296:0", "text": " @dev Moves `amount` tokens from `sender` to `recipient` using the\n allowance mechanism. `amount` is then deducted from the caller's\n allowance.\n Returns a boolean value indicating whether the operation succeeded.\n Emits a {Transfer} event." }, "functionSelector": "23b872dd", "id": 58, "implemented": false, "kind": "function", "modifiers": [], "name": "transferFrom", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 54, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 49, "mutability": "mutable", "name": "sender", "nodeType": "VariableDeclaration", "overrides": null, "scope": 58, "src": "2377:14:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 48, "name": "address", "nodeType": "ElementaryTypeName", "src": "2377:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 51, "mutability": "mutable", "name": "recipient", "nodeType": "VariableDeclaration", "overrides": null, "scope": 58, "src": "2393:17:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 50, "name": "address", "nodeType": "ElementaryTypeName", "src": "2393:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 53, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 58, "src": "2412:14:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 52, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2412:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2376:51:0" }, "returnParameters": { "id": 57, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 56, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 58, "src": "2446:4:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 55, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2446:4:0", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "2445:6:0" }, "scope": 77, "src": "2355:97:0", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "anonymous": false, "documentation": { "id": 59, "nodeType": "StructuredDocumentation", "src": "2458:158:0", "text": " @dev Emitted when `value` tokens are moved from one account (`from`) to\n another (`to`).\n Note that `value` may be zero." }, "id": 67, "name": "Transfer", "nodeType": "EventDefinition", "parameters": { "id": 66, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 61, "indexed": true, "mutability": "mutable", "name": "from", "nodeType": "VariableDeclaration", "overrides": null, "scope": 67, "src": "2636:20:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 60, "name": "address", "nodeType": "ElementaryTypeName", "src": "2636:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 63, "indexed": true, "mutability": "mutable", "name": "to", "nodeType": "VariableDeclaration", "overrides": null, "scope": 67, "src": "2658:18:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 62, "name": "address", "nodeType": "ElementaryTypeName", "src": "2658:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 65, "indexed": false, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "overrides": null, "scope": 67, "src": "2678:13:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 64, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2678:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2635:57:0" }, "src": "2621:72:0" }, { "anonymous": false, "documentation": { "id": 68, "nodeType": "StructuredDocumentation", "src": "2699:148:0", "text": " @dev Emitted when the allowance of a `spender` for an `owner` is set by\n a call to {approve}. `value` is the new allowance." }, "id": 76, "name": "Approval", "nodeType": "EventDefinition", "parameters": { "id": 75, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 70, "indexed": true, "mutability": "mutable", "name": "owner", "nodeType": "VariableDeclaration", "overrides": null, "scope": 76, "src": "2867:21:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 69, "name": "address", "nodeType": "ElementaryTypeName", "src": "2867:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 72, "indexed": true, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "overrides": null, "scope": 76, "src": "2890:23:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 71, "name": "address", "nodeType": "ElementaryTypeName", "src": "2890:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 74, "indexed": false, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "overrides": null, "scope": 76, "src": "2915:13:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 73, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2915:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2866:63:0" }, "src": "2852:78:0" } ], "scope": 806, "src": "366:2566:0" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "interface", "documentation": { "id": 78, "nodeType": "StructuredDocumentation", "src": "3149:73:0", "text": "@title CollateralLocker holds custody of Collateral Asset for Loans." }, "fullyImplemented": false, "id": 99, "linearizedBaseContracts": [ 99 ], "name": "ICollateralLocker", "nodeType": "ContractDefinition", "nodes": [ { "body": null, "documentation": { "id": 79, "nodeType": "StructuredDocumentation", "src": "3257:90:0", "text": "@dev The address the Collateral Asset the Loan is collateralized with." }, "functionSelector": "aabaecd6", "id": 84, "implemented": false, "kind": "function", "modifiers": [], "name": "collateralAsset", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 80, "nodeType": "ParameterList", "parameters": [], "src": "3376:2:0" }, "returnParameters": { "id": 83, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 82, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 84, "src": "3402:6:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" }, "typeName": { "contractScope": null, "id": 81, "name": "IERC20", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 77, "src": "3402:6:0", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" } }, "value": null, "visibility": "internal" } ], "src": "3401:8:0" }, "scope": 99, "src": "3352:58:0", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "body": null, "documentation": { "id": 85, "nodeType": "StructuredDocumentation", "src": "3416:88:0", "text": "@dev The Loan contract address this CollateralLocker is attached to." }, "functionSelector": "d285b7b4", "id": 90, "implemented": false, "kind": "function", "modifiers": [], "name": "loan", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 86, "nodeType": "ParameterList", "parameters": [], "src": "3522:2:0" }, "returnParameters": { "id": 89, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 88, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 90, "src": "3548:7:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 87, "name": "address", "nodeType": "ElementaryTypeName", "src": "3548:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "3547:9:0" }, "scope": 99, "src": "3509:48:0", "stateMutability": "view", "virtual": false, "visibility": "external" }, { "body": null, "documentation": { "id": 91, "nodeType": "StructuredDocumentation", "src": "3563:258:0", "text": "@dev Transfers `amt` of Collateral Asset to `dst`. \n@dev Only the Loan can call this function. \n@param dst The destination to transfer Collateral Asset to.\n@param amt The amount of Collateral Asset to transfer." }, "functionSelector": "f2d5d56b", "id": 98, "implemented": false, "kind": "function", "modifiers": [], "name": "pull", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 96, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 93, "mutability": "mutable", "name": "dst", "nodeType": "VariableDeclaration", "overrides": null, "scope": 98, "src": "3840:11:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 92, "name": "address", "nodeType": "ElementaryTypeName", "src": "3840:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 95, "mutability": "mutable", "name": "amt", "nodeType": "VariableDeclaration", "overrides": null, "scope": 98, "src": "3853:11:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 94, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3853:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3839:26:0" }, "returnParameters": { "id": 97, "nodeType": "ParameterList", "parameters": [], "src": "3874:0:0" }, "scope": 99, "src": "3826:49:0", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" } ], "scope": 806, "src": "3222:656:0" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": { "id": 100, "nodeType": "StructuredDocumentation", "src": "3981:563:0", "text": " @dev Wrappers over Solidity's arithmetic operations with added overflow\n checks.\n Arithmetic operations in Solidity wrap on overflow. This can easily result\n in bugs, because programmers usually assume that an overflow raises an\n error, which is the standard behavior in high level programming languages.\n `SafeMath` restores this intuition by reverting the transaction when an\n operation overflows.\n Using this library instead of the unchecked operations eliminates an entire\n class of bugs, so it's recommended to use it always." }, "fullyImplemented": true, "id": 293, "linearizedBaseContracts": [ 293 ], "name": "SafeMath", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 125, "nodeType": "Block", "src": "4864:109:0", "statements": [ { "assignments": [ 111 ], "declarations": [ { "constant": false, "id": 111, "mutability": "mutable", "name": "c", "nodeType": "VariableDeclaration", "overrides": null, "scope": 125, "src": "4874:9:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 110, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4874:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 115, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 114, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 112, "name": "a", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 103, "src": "4886:1:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "+", "rightExpression": { "argumentTypes": null, "id": 113, "name": "b", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 105, "src": "4890:1:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4886:5:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "4874:17:0" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 119, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 117, "name": "c", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 111, "src": "4909:1:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "id": 118, "name": "a", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 103, "src": "4914:1:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4909:6:0", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "536166654d6174683a206164646974696f6e206f766572666c6f77", "id": 120, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "4917:29:0", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_30cc447bcc13b3e22b45cef0dd9b0b514842d836dd9b6eb384e20dedfb47723a", "typeString": "literal_string \"SafeMath: addition overflow\"" }, "value": "SafeMath: addition overflow" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_30cc447bcc13b3e22b45cef0dd9b0b514842d836dd9b6eb384e20dedfb47723a", "typeString": "literal_string \"SafeMath: addition overflow\"" } ], "id": 116, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "4901:7:0", "typeDescriptions": { 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related to the address type" }, "fullyImplemented": true, "id": 535, "linearizedBaseContracts": [ 535 ], "name": "Address", "nodeType": "ContractDefinition", "nodes": [ { "body": { "id": 310, "nodeType": "Block", "src": "9952:347:0", "statements": [ { "assignments": [ 303 ], "declarations": [ { "constant": false, "id": 303, "mutability": "mutable", "name": "size", "nodeType": "VariableDeclaration", "overrides": null, "scope": 310, "src": "10149:12:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 302, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "10149:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 304, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "10149:12:0" }, { "AST": { "nodeType": "YulBlock", "src": "10236:32:0", "statements": [ { "nodeType": "YulAssignment", "src": "10238:28:0", "value": { "arguments": [ { "name": "account", "nodeType": "YulIdentifier", "src": "10258:7:0" } ], "functionName": { "name": "extcodesize", "nodeType": "YulIdentifier", "src": "10246:11:0" }, "nodeType": "YulFunctionCall", "src": "10246:20:0" }, "variableNames": [ { "name": "size", "nodeType": "YulIdentifier", "src": "10238:4:0" } ] } ] }, "evmVersion": "istanbul", "externalReferences": [ { "declaration": 297, "isOffset": false, "isSlot": false, "src": "10258:7:0", "valueSize": 1 }, { "declaration": 303, "isOffset": false, "isSlot": false, "src": "10238:4:0", "valueSize": 1 } ], "id": 305, "nodeType": "InlineAssembly", "src": "10227:41:0" }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 308, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 306, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 303, "src": "10284:4:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 307, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "10291:1:0", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "10284:8:0", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 301, "id": 309, "nodeType": "Return", "src": "10277:15:0" } ] }, "documentation": { "id": 295, "nodeType": "StructuredDocumentation", "src": "9316:565:0", "text": " @dev Returns true if `account` is a contract.\n [IMPORTANT]\n ====\n It is unsafe to assume that an address for which this function returns\n false is an externally-owned account (EOA) and not a contract.\n Among others, `isContract` will return false for the following\n types of addresses:\n - an externally-owned account\n - a contract in construction\n - an address where a contract will be created\n - an address where a contract lived, but was destroyed\n ====" }, "id": 311, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 298, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 297, "mutability": "mutable", "name": "account", "nodeType": "VariableDeclaration", "overrides": null, "scope": 311, "src": "9906:15:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 296, "name": "address", "nodeType": "ElementaryTypeName", "src": "9906:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "9905:17:0" }, "returnParameters": { "id": 301, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 300, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 311, "src": "9946:4:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 299, "name": "bool", "nodeType": "ElementaryTypeName", "src": "9946:4:0", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "9945:6:0" }, "scope": 535, "src": "9886:413:0", "stateMutability": "view", "virtual": false, "visibility": "internal" }, { "body": { "id": 344, "nodeType": "Block", "src": "11287:320:0", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 326, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 322, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "11313:4:0", "typeDescriptions": { "typeIdentifier": "t_contract$_Address_$535", "typeString": "library Address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_Address_$535", "typeString": "library Address" } ], "id": 321, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "11305:7:0", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 320, "name": "address", "nodeType": "ElementaryTypeName", "src": "11305:7:0", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 323, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11305:13:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 324, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "balance", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "11305:21:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "id": 325, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 316, "src": "11330:6:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "11305:31:0", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "416464726573733a20696e73756666696369656e742062616c616e6365", "id": 327, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "11338:31:0", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_5597a22abd0ef5332f8053862eb236db7590f17e2b93a53f63a103becfb561f9", "typeString": "literal_string \"Address: insufficient balance\"" }, "value": "Address: insufficient balance" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_5597a22abd0ef5332f8053862eb236db7590f17e2b93a53f63a103becfb561f9", "typeString": "literal_string \"Address: insufficient balance\"" } ], "id": 319, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "11297:7:0", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 328, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11297:73:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 329, "nodeType": "ExpressionStatement", "src": "11297:73:0" }, { "assignments": [ 331, null ], "declarations": [ { "constant": false, "id": 331, "mutability": "mutable", "name": "success", "nodeType": "VariableDeclaration", "overrides": null, "scope": 344, "src": "11459:12:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 330, "name": "bool", "nodeType": "ElementaryTypeName", "src": "11459:4:0", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" }, null ], "id": 338, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "", "id": 336, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "11509:2:0", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, "value": "" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" } ], "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 332, "name": "recipient", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 314, "src": "11477:9:0", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "id": 333, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "call", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "11477:14:0", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 335, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "names": [ "value" ], "nodeType": "FunctionCallOptions", "options": [ { "argumentTypes": null, "id": 334, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 316, "src": "11500:6:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "src": "11477:31:0", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$value", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 337, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11477:35:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "tuple(bool,bytes memory)" } }, "nodeType": "VariableDeclarationStatement", "src": "11458:54:0" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 340, "name": "success", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 331, "src": "11530:7:0", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "416464726573733a20756e61626c6520746f2073656e642076616c75652c20726563697069656e74206d61792068617665207265766572746564", "id": 341, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "11539:60:0", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_51ddaa38748c0a1144620fb5bfe8edab31ea437571ad591a7734bbfd0429aeae", "typeString": "literal_string \"Address: unable to send value, recipient may have reverted\"" }, "value": "Address: unable to send value, recipient may have reverted" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_51ddaa38748c0a1144620fb5bfe8edab31ea437571ad591a7734bbfd0429aeae", "typeString": "literal_string \"Address: unable to send value, recipient may have reverted\"" } ], "id": 339, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "11522:7:0", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 342, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "11522:78:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 343, "nodeType": "ExpressionStatement", "src": "11522:78:0" } ] }, "documentation": { "id": 312, "nodeType": "StructuredDocumentation", "src": "10305:906:0", "text": " @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n `recipient`, forwarding all available gas and reverting on errors.\n https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n of certain opcodes, possibly making contracts go over the 2300 gas limit\n imposed by `transfer`, making them unable to receive funds via\n `transfer`. {sendValue} removes this limitation.\n https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n IMPORTANT: because control is transferred to `recipient`, care must be\n taken to not create reentrancy vulnerabilities. Consider using\n {ReentrancyGuard} or the\n https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]." }, "id": 345, "implemented": true, "kind": "function", "modifiers": [], "name": "sendValue", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 317, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 314, "mutability": "mutable", "name": "recipient", "nodeType": "VariableDeclaration", "overrides": null, "scope": 345, "src": "11235:25:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "typeName": { "id": 313, "name": "address", "nodeType": "ElementaryTypeName", "src": "11235:15:0", "stateMutability": "payable", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 316, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "overrides": null, "scope": 345, "src": "11262:14:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 315, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "11262:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "11234:43:0" }, "returnParameters": { "id": 318, "nodeType": "ParameterList", "parameters": [], "src": "11287:0:0" }, "scope": 535, "src": "11216:391:0", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 361, "nodeType": "Block", "src": "12437:82:0", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 356, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 348, "src": "12465:6:0", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 357, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 350, "src": "12473:4:0", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "hexValue": "416464726573733a206c6f772d6c6576656c2063616c6c206661696c6564", "id": 358, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "12479:32:0", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_24d7ab5d382116e64324f19950ca9340b8af1ddeb09a8d026e0a3c6a01dcc9df", "typeString": "literal_string \"Address: low-level call failed\"" }, "value": "Address: low-level call failed" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_stringliteral_24d7ab5d382116e64324f19950ca9340b8af1ddeb09a8d026e0a3c6a01dcc9df", "typeString": "literal_string \"Address: low-level call failed\"" } ], "id": 355, "name": "functionCall", "nodeType": "Identifier", "overloadedDeclarations": [ 362, 382 ], "referencedDeclaration": 382, "src": "12452:12:0", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_bytes_memory_ptr_$_t_string_memory_ptr_$returns$_t_bytes_memory_ptr_$", "typeString": "function (address,bytes memory,string memory) returns (bytes memory)" } }, "id": 359, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "12452:60:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 354, "id": 360, "nodeType": "Return", "src": "12445:67:0" } ] }, "documentation": { "id": 346, "nodeType": "StructuredDocumentation", "src": "11613:730:0", "text": " @dev Performs a Solidity function call using a low level `call`. A\n plain`call` is an unsafe replacement for a function call: use this\n function instead.\n If `target` reverts with a revert reason, it is bubbled up by this\n function (like regular Solidity function calls).\n Returns the raw returned data. To convert to the expected return value,\n use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n Requirements:\n - `target` must be a contract.\n - calling `target` with `data` must not revert.\n _Available since v3.1._" }, "id": 362, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 351, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 348, "mutability": "mutable", "name": "target", "nodeType": "VariableDeclaration", "overrides": null, "scope": 362, "src": "12370:14:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 347, "name": "address", "nodeType": "ElementaryTypeName", "src": "12370:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 350, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "overrides": null, "scope": 362, "src": "12386:17:0", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 349, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "12386:5:0", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "12369:35:0" }, "returnParameters": { "id": 354, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 353, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 362, "src": "12423:12:0", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": 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Tokens that return no value (and instead revert or\n throw on failure) are also supported, non-reverting calls are assumed to be\n successful.\n To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n which allows you to call the safe operations as `token.safeTransfer(...)`, etc." }, "fullyImplemented": true, "id": 743, "linearizedBaseContracts": [ 743 ], "name": "SafeERC20", "nodeType": "ContractDefinition", "nodes": [ { "id": 539, "libraryName": { "contractScope": null, "id": 537, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 293, "src": "16707:8:0", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$293", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "16701:27:0", "typeName": { "id": 538, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "16720:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "id": 542, 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"overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "17765:7:0", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 617, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17765:150:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 618, "nodeType": "ExpressionStatement", "src": "17765:150:0" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 620, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 592, "src": "17945:5:0", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 623, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 592, "src": "17975:5:0", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" } }, "id": 624, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "approve", "nodeType": "MemberAccess", "referencedDeclaration": 46, "src": "17975:13:0", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 625, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "selector", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "17975:22:0", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, { "argumentTypes": null, "id": 626, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 594, "src": "17999:7:0", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 627, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 596, "src": "18008:5:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 621, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -1, "src": "17952:3:0", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 622, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodeWithSelector", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "17952:22:0", "typeDescriptions": { "typeIdentifier": "t_function_abiencodewithselector_pure$_t_bytes4_$returns$_t_bytes_memory_ptr_$", "typeString": "function (bytes4) pure returns (bytes memory)" } }, "id": 628, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17952:62:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 619, "name": "_callOptionalReturn", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 742, "src": "17925:19:0", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_contract$_IERC20_$77_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (contract IERC20,bytes memory)" } }, "id": 629, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "17925:90:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 630, "nodeType": "ExpressionStatement", "src": "17925:90:0" } ] }, "documentation": { "id": 590, "nodeType": "StructuredDocumentation", "src": "17155:249:0", "text": " @dev Deprecated. This function has issues similar to the ones found in\n {IERC20-approve}, and its usage is discouraged.\n Whenever possible, use {safeIncreaseAllowance} and\n {safeDecreaseAllowance} instead." }, "id": 632, "implemented": true, "kind": "function", "modifiers": [], "name": "safeApprove", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 597, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 592, "mutability": "mutable", "name": "token", "nodeType": "VariableDeclaration", "overrides": null, "scope": 632, "src": "17430:12:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" }, "typeName": { "contractScope": null, "id": 591, "name": "IERC20", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 77, "src": "17430:6:0", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 594, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "overrides": null, "scope": 632, "src": "17444:15:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 593, "name": "address", "nodeType": "ElementaryTypeName", "src": "17444:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 596, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "overrides": null, "scope": 632, "src": "17461:13:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 595, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "17461:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "17429:46:0" }, "returnParameters": { "id": 598, "nodeType": "ParameterList", "parameters": [], "src": "17485:0:0" }, "scope": 743, "src": "17409:613:0", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 667, "nodeType": "Block", "src": "18114:197:0", "statements": [ { "assignments": [ 642 ], "declarations": [ { "constant": false, "id": 642, "mutability": "mutable", "name": "newAllowance", "nodeType": "VariableDeclaration", "overrides": null, "scope": 667, "src": "18124:20:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 641, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "18124:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 654, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 652, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 638, "src": "18191:5:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 647, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "18171:4:0", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeERC20_$743", "typeString": "library SafeERC20" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_SafeERC20_$743", "typeString": "library SafeERC20" } ], "id": 646, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "18163:7:0", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 645, "name": "address", "nodeType": "ElementaryTypeName", "src": "18163:7:0", "typeDescriptions": { "typeIdentifier": null, "typeString": null } } }, "id": 648, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18163:13:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 649, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 636, "src": "18178:7:0", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address", "typeString": "address" } ], "expression": { "argumentTypes": null, "id": 643, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 634, "src": "18147:5:0", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" } }, "id": 644, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "allowance", "nodeType": "MemberAccess", "referencedDeclaration": 36, "src": "18147:15:0", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_address_$_t_address_$returns$_t_uint256_$", "typeString": "function (address,address) view external returns (uint256)" } }, "id": 650, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18147:39:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 651, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 126, "src": "18147:43:0", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 653, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18147:50:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "18124:73:0" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 656, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 634, "src": "18227:5:0", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 659, "name": "token", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 634, "src": "18257:5:0", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" } }, "id": 660, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "approve", "nodeType": "MemberAccess", "referencedDeclaration": 46, "src": "18257:13:0", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 661, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "selector", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "18257:22:0", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, { "argumentTypes": null, "id": 662, "name": "spender", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 636, "src": "18281:7:0", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 663, "name": "newAllowance", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 642, "src": "18290:12:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 657, "name": "abi", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -1, "src": "18234:3:0", "typeDescriptions": { "typeIdentifier": "t_magic_abi", "typeString": "abi" } }, "id": 658, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "memberName": "encodeWithSelector", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "18234:22:0", "typeDescriptions": { "typeIdentifier": "t_function_abiencodewithselector_pure$_t_bytes4_$returns$_t_bytes_memory_ptr_$", "typeString": "function (bytes4) pure returns (bytes memory)" } }, "id": 664, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18234:69:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 655, "name": "_callOptionalReturn", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 742, "src": "18207:19:0", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_contract$_IERC20_$77_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (contract IERC20,bytes memory)" } }, "id": 665, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "18207:97:0", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 666, "nodeType": "ExpressionStatement", "src": "18207:97:0" } ] }, "documentation": null, "id": 668, "implemented": true, "kind": "function", "modifiers": [], "name": "safeIncreaseAllowance", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 639, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 634, "mutability": "mutable", "name": "token", "nodeType": "VariableDeclaration", "overrides": null, "scope": 668, "src": "18059:12:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" }, "typeName": { "contractScope": null, "id": 633, "name": "IERC20", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 77, "src": "18059:6:0", "typeDescriptions": { "typeIdentifier": "t_contract$_IERC20_$77", "typeString": "contract IERC20" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 636, "mutability": "mutable", "name": "spender", "nodeType": "VariableDeclaration", "overrides": null, "scope": 668, "src": "18073:15:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 635, "name": "address", "nodeType": "ElementaryTypeName", "src": "18073:7:0", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 638, "mutability": "mutable", "name": "value", "nodeType": "VariableDeclaration", "overrides": null, "scope": 668, "src": "18090:13:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 637, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "18090:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "18058:46:0" }, "returnParameters": { "id": 640, "nodeType": "ParameterList", "parameters": [], "src": "18114:0:0" }, "scope": 743, "src": "18028:283:0", "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "body": { "id": 704, "nodeType": "Block", "src": "18403:242:0", "statements": [ { "assignments": [ 678 ], "declarations": [ { "constant": false, "id": 678, "mutability": "mutable", "name": "newAllowance", "nodeType": "VariableDeclaration", "overrides": null, "scope": 704, "src": "18413:20:0", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 677, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "18413:7:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 691, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 688, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 674, "src": "18480:5:0", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "hexValue": "5361666545524332303a2064656372656173656420616c6c6f77616e63652062656c6f77207a65726f", "id": 689, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "18487:43:0", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_2c3af60974a758b7e72e108c9bf0943ecc9e4f2e8af4695da5f52fbf57a63d3a", "typeString": "literal_string \"SafeERC20: decreased allowance below zero\"" }, "value": "SafeERC20: decreased allowance below zero" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_stringliteral_2c3af60974a758b7e72e108c9bf0943ecc9e4f2e8af4695da5f52fbf57a63d3a", "typeString": "literal_string \"SafeERC20: decreased allowance below zero\"" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 683, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "18460:4:0", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeERC20_$743", "typeString": "library SafeERC20" } } ], "expression": { 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