{ "contractName": "VendingMachine", "abi": [ { "inputs": [ { "internalType": "address", "name": "_systemAddress", "type": "address" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "constant": false, "inputs": [ { "internalType": "contract TBTCToken", "name": "_tbtcToken", "type": "address" }, { "internalType": "contract TBTCDepositToken", "name": "_tbtcDepositToken", "type": "address" }, { "internalType": "contract FeeRebateToken", "name": "_feeRebateToken", "type": "address" } ], "name": "setExternalAddresses", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "internalType": "uint256", "name": "_tdtId", "type": "uint256" } ], "name": "tbtcToTdt", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "internalType": "uint256", "name": "_tdtId", "type": "uint256" } ], "name": "tdtToTbtc", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "canMint", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "internalType": "address payable", "name": "_depositAddress", "type": "address" } ], "name": "isQualified", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getMintedSupply", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getMaxSupply", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "internalType": "address payable", "name": "_depositAddress", "type": "address" }, { "internalType": "bytes4", "name": "_txVersion", "type": "bytes4" }, { "internalType": "bytes", "name": "_txInputVector", "type": "bytes" }, { "internalType": "bytes", "name": "_txOutputVector", "type": "bytes" }, { "internalType": "bytes4", "name": "_txLocktime", "type": "bytes4" }, { "internalType": "uint8", "name": "_fundingOutputIndex", "type": "uint8" }, { "internalType": "bytes", "name": "_merkleProof", "type": "bytes" }, { "internalType": "uint256", "name": "_txIndexInBlock", "type": "uint256" }, { "internalType": "bytes", "name": "_bitcoinHeaders", "type": "bytes" } ], "name": "unqualifiedDepositToTbtc", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "internalType": "address payable", "name": "_depositAddress", "type": "address" }, { "internalType": "bytes8", "name": "_outputValueBytes", "type": "bytes8" }, { "internalType": "bytes", "name": "_redeemerOutputScript", "type": "bytes" } ], "name": "tbtcToBtc", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.17+commit.d19bba13\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_systemAddress\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"canMint\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getMaxSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getMintedSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address payable\",\"name\":\"_depositAddress\",\"type\":\"address\"}],\"name\":\"isQualified\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"contract TBTCToken\",\"name\":\"_tbtcToken\",\"type\":\"address\"},{\"internalType\":\"contract TBTCDepositToken\",\"name\":\"_tbtcDepositToken\",\"type\":\"address\"},{\"internalType\":\"contract FeeRebateToken\",\"name\":\"_feeRebateToken\",\"type\":\"address\"}],\"name\":\"setExternalAddresses\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address payable\",\"name\":\"_depositAddress\",\"type\":\"address\"},{\"internalType\":\"bytes8\",\"name\":\"_outputValueBytes\",\"type\":\"bytes8\"},{\"internalType\":\"bytes\",\"name\":\"_redeemerOutputScript\",\"type\":\"bytes\"}],\"name\":\"tbtcToBtc\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_tdtId\",\"type\":\"uint256\"}],\"name\":\"tbtcToTdt\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"_tdtId\",\"type\":\"uint256\"}],\"name\":\"tdtToTbtc\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address payable\",\"name\":\"_depositAddress\",\"type\":\"address\"},{\"internalType\":\"bytes4\",\"name\":\"_txVersion\",\"type\":\"bytes4\"},{\"internalType\":\"bytes\",\"name\":\"_txInputVector\",\"type\":\"bytes\"},{\"internalType\":\"bytes\",\"name\":\"_txOutputVector\",\"type\":\"bytes\"},{\"internalType\":\"bytes4\",\"name\":\"_txLocktime\",\"type\":\"bytes4\"},{\"internalType\":\"uint8\",\"name\":\"_fundingOutputIndex\",\"type\":\"uint8\"},{\"internalType\":\"bytes\",\"name\":\"_merkleProof\",\"type\":\"bytes\"},{\"internalType\":\"uint256\",\"name\":\"_txIndexInBlock\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_bitcoinHeaders\",\"type\":\"bytes\"}],\"name\":\"unqualifiedDepositToTbtc\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"details\":\"The Vending Machine should have exclusive TBTC and FRT (`FeeRebateToken`) minting privileges.\",\"methods\":{\"canMint(uint256)\":{\"details\":\"This function is also used by TBTCSystem to decide whether to allow a new deposit.\",\"return\":\"True if the amount can be minted without hitting the max supply, false otherwise.\"},\"getMaxSupply()\":{\"return\":\"The max supply in weitoshis (BTC * 10 ** 18).\"},\"isQualified(address)\":{\"params\":{\"_depositAddress\":\"The address of the deposit\"}},\"setExternalAddresses(address,address,address)\":{\"details\":\"Addresses are used to update the local contract instance.\",\"params\":{\"_feeRebateToken\":\"FeeRebateToken (FRT) contract. More info in `FeeRebateToken`.\",\"_tbtcDepositToken\":\"TBTCDepositToken (TDT) contract. More info in `TBTCDepositToken`.\",\"_tbtcToken\":\"TBTCToken contract. More info in `TBTCToken`.\"}},\"tbtcToBtc(address,bytes8,bytes)\":{\"details\":\"Vending Machine transfers TBTC allowance to Deposit.\",\"params\":{\"_depositAddress\":\"The address of the Deposit to redeem.\",\"_outputValueBytes\":\"The 8-byte Bitcoin transaction output size in Little Endian.\",\"_redeemerOutputScript\":\"The redeemer's length-prefixed output script.\"}},\"tbtcToTdt(uint256)\":{\"details\":\"We burn the lotSize of the Deposit in order to maintain the TBTC supply peg in the Vending Machine. VendingMachine must be approved by the caller to burn the required amount.\",\"params\":{\"_tdtId\":\"ID of tBTC Deposit Token to buy.\"}},\"tdtToTbtc(uint256)\":{\"details\":\"Transfers TDT from caller to vending machine, and mints TBTC to caller. Vending Machine must be approved to transfer TDT by the caller.\",\"params\":{\"_tdtId\":\"ID of tBTC Deposit Token to sell.\"}},\"unqualifiedDepositToTbtc(address,bytes4,bytes,bytes,bytes4,uint8,bytes,uint256,bytes)\":{\"details\":\"User must allow VendingManchine to transfer TDT.\"}},\"title\":\"Vending Machine\"},\"userdoc\":{\"methods\":{\"canMint(uint256)\":{\"notice\":\"Return whether an amount of TBTC can be minted according to the supply cap schedule\"},\"getMaxSupply()\":{\"notice\":\"Get the maximum TBTC token supply based on the age of the contract deployment. The supply cap starts at 2 BTC for the two days, 100 for the first week, 250 for the next, then 500, 750, 1000, 1500, 2000, 2500, and 3000... finally removing the minting restriction after 9 weeks and returning 21M BTC as a sanity check.\"},\"getMintedSupply()\":{\"notice\":\"Return the minted TBTC supply in weitoshis (BTC * 10 ** 18).\"},\"isQualified(address)\":{\"notice\":\"Determines whether a deposit is qualified for minting TBTC.\"},\"setExternalAddresses(address,address,address)\":{\"notice\":\"Set external contracts needed by the Vending Machine.\"},\"tbtcToBtc(address,bytes8,bytes)\":{\"notice\":\"Redeems a Deposit by purchasing a TDT with TBTC for _finalRecipient, and using the TDT to redeem corresponding Deposit as _finalRecipient. This function will revert if the Deposit is not in ACTIVE state.\"},\"tbtcToTdt(uint256)\":{\"notice\":\"Burns TBTC and transfers the tBTC Deposit Token to the caller as long as it is qualified.\"},\"tdtToTbtc(uint256)\":{\"notice\":\"Transfer the tBTC Deposit Token and mint TBTC.\"},\"unqualifiedDepositToTbtc(address,bytes4,bytes,bytes,bytes4,uint8,bytes,uint256,bytes)\":{\"notice\":\"Qualifies a deposit and mints TBTC.\"}},\"notice\":\"The Vending Machine swaps TDTs (`TBTCDepositToken`) to TBTC (`TBTCToken`) and vice versa.\"}},\"settings\":{\"compilationTarget\":{\"/home/runner/work/tbtc/tbtc/solidity/contracts/system/VendingMachine.sol\":\"VendingMachine\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/home/runner/work/tbtc/tbtc/solidity/contracts/DepositLog.sol\":{\"keccak256\":\"0xd2422abaf64bf2d28f4c0548bc31c3d0e4c5f3e4414486c149b773bea0c9db0a\",\"urls\":[\"bzz-raw://c4b0e3caea108ce67da5922906753dc1a1f87cee923e7c32260239150f2152bb\",\"dweb:/ipfs/QmcHcftf4M6ZyuFG725QiFGHuAtz6zDQZ9HCEaoP5Wb6Fd\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/deposit/Deposit.sol\":{\"keccak256\":\"0x4e25c6bfe874c5254659e99b5d87ad0bd6299468106c8f955e973a0431367dec\",\"urls\":[\"bzz-raw://c54c7e956fee91813946745f23d11062a9dd2c07d916979871f7468509295de4\",\"dweb:/ipfs/QmQ1qFjzq9uY7SmdUqzwNM7z8AAnCbji2joqkJYJSBaJyW\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/deposit/DepositFunding.sol\":{\"keccak256\":\"0xe223f4e039e347d3eec8eea8d30d6f87f25ab3f8839e96b5da608c6a012db2c2\",\"urls\":[\"bzz-raw://48435948a4b232a3c610f7ac51e5c87a27aa10f92775bc95cd2068dd07b69a70\",\"dweb:/ipfs/Qmd7PeN1uovU8BqyrPuLkKf4U1DENt9S7hFr6G5cXFamim\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/deposit/DepositLiquidation.sol\":{\"keccak256\":\"0x6ec98705ac0cfc20f2e94069ba88c74816c40283c47b3086cf619b69d8a15379\",\"urls\":[\"bzz-raw://981e7e1ababfe4bb7bb35251679f59d188348c416af29822794011a0e48f2cd3\",\"dweb:/ipfs/QmTpPQCYP3qzKdcMBLBZGRSM2X6rgR1CZmYDQ7SHP4pjrb\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/deposit/DepositRedemption.sol\":{\"keccak256\":\"0xe40c0cbb443715c4f587b78f568348276fabae9a2f77645596367a1f65b1fae5\",\"urls\":[\"bzz-raw://310d07df39ad769b5ffca044a1a589686268d72ac36d568360da3a4a9ab16f93\",\"dweb:/ipfs/QmT9stQ2AVkF7i9nvDSTswhD6EkfNHVCtTmRENsVqYxwso\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/deposit/DepositStates.sol\":{\"keccak256\":\"0x0b407fe4cfa56771c7cb0280e58c23e6c79089bb0f39ec9af83855103cfadce0\",\"urls\":[\"bzz-raw://b06c9ff8c10125cd7dcee7167fd081c95248c97c699a4dfc92bf65d68774f5f1\",\"dweb:/ipfs/QmcdTkj1XtJcPhF9pxr56xV4DW3SxGaaiE5PeGxbYVoHL3\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/deposit/DepositUtils.sol\":{\"keccak256\":\"0xc18e532fc384f45567abcf7fbe7bccb885308d63ffeed41d9cf845573a289b98\",\"urls\":[\"bzz-raw://7250e8fce13326313e64d2f24e093bd51c9fdba939b8370f64a1fe820814275b\",\"dweb:/ipfs/QmVfX5w4xN6gxoqbdgPeeTbBvFtxxaNYWSknSY7JDtve2b\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/deposit/OutsourceDepositLogging.sol\":{\"keccak256\":\"0x8bddca84b4106ea5d865b5e19c0d49f3dc94a7e614c7403ae05074eda01d6ee9\",\"urls\":[\"bzz-raw://65b05f6e04ae46a16194db335ad21dd806d0b07ad571a126b6981896890c8a4c\",\"dweb:/ipfs/QmTF4RgELhXX7pooNKwW8qNY7Sr7dFY7vfueApjTMa99jt\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/interfaces/ITBTCSystem.sol\":{\"keccak256\":\"0xd8530ab1baddbdfbba6c1b03e547375afe79493b9948d645f94fc0da12ec953b\",\"urls\":[\"bzz-raw://713285a0a4d865a37f3770ce848c20f7277e1540c0a8aa43c2ae0966a7c3df9a\",\"dweb:/ipfs/QmaPiXxvySt9UDmQtVGidh8TQ4XJdxY2X61rEBd8346ELi\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/interfaces/ITokenRecipient.sol\":{\"keccak256\":\"0x4ac6830ad44d0b0d70ebabc60150e9c915c7c0bd0129ef868d5d2cd8da0c32bd\",\"urls\":[\"bzz-raw://a5c6465285add41f07a951f90405800a8802e323ea11e9c7bdb5625ce109c7f7\",\"dweb:/ipfs/QmRf7B4WxsS7gbSwUotgQM633BQc2ye7rhYC1RNVFamBfp\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/system/DepositFactoryAuthority.sol\":{\"keccak256\":\"0xd8e81ec58dea6a6bcc554e8c7e6c58898ab11a410c3f61224330cbe833992add\",\"urls\":[\"bzz-raw://9d2b23cf1e2f98eb77acf6ae62933e48494113e1d6091146459fd79a635f1dcf\",\"dweb:/ipfs/QmPK3nTmcrScDavDSXGHvonhfik3BJ55qhwSnUmhzL5QUE\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/system/FeeRebateToken.sol\":{\"keccak256\":\"0x3d9980b4b18be7e69364b93581d86d08dd2c66fc76b2f9f0af0b4911dc648318\",\"urls\":[\"bzz-raw://751dae1cd68c285a22b513d515074eb6704e11e00ba8196f360d47dc8551dd86\",\"dweb:/ipfs/QmRe5u8bjSd2CMvjgWMzpeea3VdcqEGwAP91zvjxgur8o8\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/system/TBTCConstants.sol\":{\"keccak256\":\"0x74833fb25cf9f24716d563c8fad0fd6172d03577dc85ab4271ca4754285ee915\",\"urls\":[\"bzz-raw://62d37b71546ea52f0c86170b588b021a488785e8570f904f0d2bcfecee93f6a7\",\"dweb:/ipfs/QmePuD631VYpEproKbap8cPXmWeb5mYjU6bwEWnxKCVWbz\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/system/TBTCDepositToken.sol\":{\"keccak256\":\"0xd9238bbd83f5352706426103a0708ad7c00ffbd90340a4b3bab03d2c5371e48b\",\"urls\":[\"bzz-raw://f1fc94f00aeabd49bd0f8ecf372213e83c949454c28fa672a46dd12d9a0b4311\",\"dweb:/ipfs/QmaCzqi2g4GSvzHDDES61FauDmdTGGyZrCkK1BdxpMqYa3\"]},\"/home/runner/work/tbtc/tbtc/solidity/contracts/system/TBTCSystemAuthority.sol\":{\"keccak256\":\"0xc072c71402f122e3ae148000b95559169cb39b8752977817f4f88b372e7d77dd\",\"urls\":[\"bzz-raw://9c91b71602bf36f66d6ab24156777a2ef18c027f09055232011f9012387e6c70\",\"dweb:/ipfs/QmYAEZ8ithnhVcdCt76m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"source": "pragma solidity 0.5.17;\n\nimport {SafeMath} from \"openzeppelin-solidity/contracts/math/SafeMath.sol\";\nimport {TBTCDepositToken} from \"./TBTCDepositToken.sol\";\nimport {FeeRebateToken} from \"./FeeRebateToken.sol\";\nimport {TBTCToken} from \"./TBTCToken.sol\";\nimport {TBTCConstants} from \"./TBTCConstants.sol\";\nimport \"../deposit/Deposit.sol\";\nimport \"./TBTCSystemAuthority.sol\";\n\n/// @title Vending Machine\n/// @notice The Vending Machine swaps TDTs (`TBTCDepositToken`)\n/// to TBTC (`TBTCToken`) and vice versa.\n/// @dev The Vending Machine should have exclusive TBTC and FRT (`FeeRebateToken`) minting\n/// privileges.\ncontract VendingMachine is TBTCSystemAuthority {\n using SafeMath for uint256;\n\n TBTCToken tbtcToken;\n TBTCDepositToken tbtcDepositToken;\n FeeRebateToken feeRebateToken;\n\n uint256 createdAt;\n\n constructor(address _systemAddress)\n public\n TBTCSystemAuthority(_systemAddress)\n {\n createdAt = block.timestamp;\n }\n\n /// @notice Set external contracts needed by the Vending Machine.\n /// @dev Addresses are used to update the local contract instance.\n /// @param _tbtcToken TBTCToken contract. More info in `TBTCToken`.\n /// @param _tbtcDepositToken TBTCDepositToken (TDT) contract. More info in `TBTCDepositToken`.\n /// @param _feeRebateToken FeeRebateToken (FRT) contract. More info in `FeeRebateToken`.\n function setExternalAddresses(\n TBTCToken _tbtcToken,\n TBTCDepositToken _tbtcDepositToken,\n FeeRebateToken _feeRebateToken\n ) external onlyTbtcSystem {\n tbtcToken = _tbtcToken;\n tbtcDepositToken = _tbtcDepositToken;\n feeRebateToken = _feeRebateToken;\n }\n\n /// @notice Burns TBTC and transfers the tBTC Deposit Token to the caller\n /// as long as it is qualified.\n /// @dev We burn the lotSize of the Deposit in order to maintain\n /// the TBTC supply peg in the Vending Machine. VendingMachine must be approved\n /// by the caller to burn the required amount.\n /// @param _tdtId ID of tBTC Deposit Token to buy.\n function tbtcToTdt(uint256 _tdtId) external {\n require(\n tbtcDepositToken.exists(_tdtId),\n \"tBTC Deposit Token does not exist\"\n );\n require(isQualified(address(_tdtId)), \"Deposit must be qualified\");\n\n uint256 depositValue = Deposit(address(uint160(_tdtId))).lotSizeTbtc();\n require(\n tbtcToken.balanceOf(msg.sender) >= depositValue,\n \"Not enough TBTC for TDT exchange\"\n );\n tbtcToken.burnFrom(msg.sender, depositValue);\n\n // TODO do we need the owner check below? transferFrom can be approved for a user, which might be an interesting use case.\n require(\n tbtcDepositToken.ownerOf(_tdtId) == address(this),\n \"Deposit is locked\"\n );\n tbtcDepositToken.transferFrom(address(this), msg.sender, _tdtId);\n }\n\n /// @notice Transfer the tBTC Deposit Token and mint TBTC.\n /// @dev Transfers TDT from caller to vending machine, and mints TBTC to caller.\n /// Vending Machine must be approved to transfer TDT by the caller.\n /// @param _tdtId ID of tBTC Deposit Token to sell.\n function tdtToTbtc(uint256 _tdtId) public {\n require(\n tbtcDepositToken.exists(_tdtId),\n \"tBTC Deposit Token does not exist\"\n );\n require(isQualified(address(_tdtId)), \"Deposit must be qualified\");\n\n tbtcDepositToken.transferFrom(msg.sender, address(this), _tdtId);\n\n Deposit deposit = Deposit(address(uint160(_tdtId)));\n uint256 signerFee = deposit.signerFeeTbtc();\n uint256 depositValue = deposit.lotSizeTbtc();\n\n require(\n canMint(depositValue),\n \"Can't mint more than the max supply cap\"\n );\n\n // If the backing Deposit does not have a signer fee in escrow, mint it.\n if (tbtcToken.balanceOf(address(_tdtId)) < signerFee) {\n tbtcToken.mint(msg.sender, depositValue.sub(signerFee));\n tbtcToken.mint(address(_tdtId), signerFee);\n } else {\n tbtcToken.mint(msg.sender, depositValue);\n }\n\n // owner of the TDT during first TBTC mint receives the FRT\n if (!feeRebateToken.exists(_tdtId)) {\n feeRebateToken.mint(msg.sender, _tdtId);\n }\n }\n\n /// @notice Return whether an amount of TBTC can be minted according to the supply cap\n /// schedule\n /// @dev This function is also used by TBTCSystem to decide whether to allow a new deposit.\n /// @return True if the amount can be minted without hitting the max supply, false otherwise.\n function canMint(uint256 amount) public view returns (bool) {\n return getMintedSupply().add(amount) < getMaxSupply();\n }\n\n /// @notice Determines whether a deposit is qualified for minting TBTC.\n /// @param _depositAddress The address of the deposit\n function isQualified(address payable _depositAddress)\n public\n view\n returns (bool)\n {\n return Deposit(_depositAddress).inActive();\n }\n\n /// @notice Return the minted TBTC supply in weitoshis (BTC * 10 ** 18).\n function getMintedSupply() public view returns (uint256) {\n return tbtcToken.totalSupply();\n }\n\n /// @notice Get the maximum TBTC token supply based on the age of the\n /// contract deployment. The supply cap starts at 2 BTC for the two\n /// days, 100 for the first week, 250 for the next, then 500, 750,\n /// 1000, 1500, 2000, 2500, and 3000... finally removing the minting\n /// restriction after 9 weeks and returning 21M BTC as a sanity\n /// check.\n /// @return The max supply in weitoshis (BTC * 10 ** 18).\n function getMaxSupply() public view returns (uint256) {\n uint256 age = block.timestamp - createdAt;\n\n if (age < 2 days) {\n return 2 * 10**18;\n }\n\n if (age < 7 days) {\n return 100 * 10**18;\n }\n\n if (age < 14 days) {\n return 250 * 10**18;\n }\n\n if (age < 21 days) {\n return 500 * 10**18;\n }\n\n if (age < 28 days) {\n return 750 * 10**18;\n }\n\n if (age < 35 days) {\n return 1000 * 10**18;\n }\n\n if (age < 42 days) {\n return 1500 * 10**18;\n }\n\n if (age < 49 days) {\n return 2000 * 10**18;\n }\n\n if (age < 56 days) {\n return 2500 * 10**18;\n }\n\n if (age < 63 days) {\n return 3000 * 10**18;\n }\n\n return 21e6 * 10**18;\n }\n\n // WRAPPERS\n\n /// @notice Qualifies a deposit and mints TBTC.\n /// @dev User must allow VendingManchine to transfer TDT.\n function unqualifiedDepositToTbtc(\n address payable _depositAddress,\n bytes4 _txVersion,\n bytes memory _txInputVector,\n bytes memory _txOutputVector,\n bytes4 _txLocktime,\n uint8 _fundingOutputIndex,\n bytes memory _merkleProof,\n uint256 _txIndexInBlock,\n bytes memory _bitcoinHeaders\n ) public {\n // not external to allow bytes memory parameters\n Deposit _d = Deposit(_depositAddress);\n _d.provideBTCFundingProof(\n _txVersion,\n _txInputVector,\n _txOutputVector,\n _txLocktime,\n _fundingOutputIndex,\n _merkleProof,\n _txIndexInBlock,\n _bitcoinHeaders\n );\n\n tdtToTbtc(uint256(_depositAddress));\n }\n\n /// @notice Redeems a Deposit by purchasing a TDT with TBTC for _finalRecipient,\n /// and using the TDT to redeem corresponding Deposit as _finalRecipient.\n /// This function will revert if the Deposit is not in ACTIVE state.\n /// @dev Vending Machine transfers TBTC allowance to Deposit.\n /// @param _depositAddress The address of the Deposit to redeem.\n /// @param _outputValueBytes The 8-byte Bitcoin transaction output size in Little Endian.\n /// @param _redeemerOutputScript The redeemer's length-prefixed output script.\n function tbtcToBtc(\n address payable _depositAddress,\n bytes8 _outputValueBytes,\n bytes memory _redeemerOutputScript\n ) public {\n // not external to allow bytes memory parameters\n require(\n tbtcDepositToken.exists(uint256(_depositAddress)),\n \"tBTC Deposit Token does not exist\"\n );\n Deposit _d = Deposit(_depositAddress);\n\n tbtcToken.burnFrom(msg.sender, _d.lotSizeTbtc());\n tbtcDepositToken.approve(_depositAddress, uint256(_depositAddress));\n\n uint256 tbtcOwed = _d.getOwnerRedemptionTbtcRequirement(msg.sender);\n\n if (tbtcOwed != 0) {\n tbtcToken.transferFrom(msg.sender, address(this), tbtcOwed);\n tbtcToken.approve(_depositAddress, tbtcOwed);\n }\n\n _d.transferAndRequestRedemption(\n _outputValueBytes,\n _redeemerOutputScript,\n msg.sender\n );\n }\n}\n", "sourcePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/system/VendingMachine.sol", "ast": { "absolutePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/system/VendingMachine.sol", "exportedSymbols": { "VendingMachine": [ 9123 ] }, "id": 9124, "nodeType": "SourceUnit", "nodes": [ { "id": 8563, "literals": [ "solidity", "0.5", ".17" ], "nodeType": "PragmaDirective", "src": "0:23:28" }, { "absolutePath": "openzeppelin-solidity/contracts/math/SafeMath.sol", "file": "openzeppelin-solidity/contracts/math/SafeMath.sol", "id": 8565, "nodeType": "ImportDirective", "scope": 9124, "sourceUnit": 16856, "src": "25:75:28", "symbolAliases": [ { "foreign": 8564, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/system/TBTCDepositToken.sol", "file": "./TBTCDepositToken.sol", "id": 8567, "nodeType": "ImportDirective", "scope": 9124, "sourceUnit": 6845, "src": "101:56:28", "symbolAliases": [ { "foreign": 8566, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/system/FeeRebateToken.sol", "file": "./FeeRebateToken.sol", "id": 8569, "nodeType": "ImportDirective", "scope": 9124, "sourceUnit": 6301, "src": "158:52:28", "symbolAliases": [ { "foreign": 8568, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/system/TBTCToken.sol", "file": "./TBTCToken.sol", "id": 8571, "nodeType": "ImportDirective", "scope": 9124, "sourceUnit": 8562, "src": "211:42:28", "symbolAliases": [ { "foreign": 8570, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/system/TBTCConstants.sol", "file": "./TBTCConstants.sol", "id": 8573, "nodeType": "ImportDirective", "scope": 9124, "sourceUnit": 6758, "src": "254:50:28", "symbolAliases": [ { "foreign": 8572, "local": null } ], "unitAlias": "" }, { "absolutePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/deposit/Deposit.sol", "file": "../deposit/Deposit.sol", "id": 8574, "nodeType": "ImportDirective", "scope": 9124, "sourceUnit": 1135, "src": "305:32:28", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/home/runner/work/tbtc/tbtc/solidity/contracts/system/TBTCSystemAuthority.sol", "file": "./TBTCSystemAuthority.sol", "id": 8575, "nodeType": "ImportDirective", "scope": 9124, "sourceUnit": 8400, "src": "338:35:28", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 8576, "name": "TBTCSystemAuthority", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 8399, "src": "662:19:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCSystemAuthority_$8399", "typeString": "contract TBTCSystemAuthority" } }, "id": 8577, "nodeType": "InheritanceSpecifier", "src": "662:19:28" } ], "contractDependencies": [ 8399 ], "contractKind": "contract", "documentation": "@title Vending Machine\n @notice The Vending Machine swaps TDTs (`TBTCDepositToken`)\n to TBTC (`TBTCToken`) and vice versa.\n @dev The Vending Machine should have exclusive TBTC and FRT (`FeeRebateToken`) minting\n privileges.", "fullyImplemented": true, "id": 9123, "linearizedBaseContracts": [ 9123, 8399 ], "name": "VendingMachine", "nodeType": "ContractDefinition", "nodes": [ { "id": 8580, "libraryName": { "contractScope": null, "id": 8578, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 16855, "src": "694:8:28", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$16855", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "688:27:28", "typeName": { "id": 8579, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "707:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, { "constant": false, "id": 8582, "name": "tbtcToken", "nodeType": "VariableDeclaration", "scope": 9123, "src": "721:19:28", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" }, "typeName": { "contractScope": null, "id": 8581, "name": "TBTCToken", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 8561, "src": "721:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 8584, "name": "tbtcDepositToken", "nodeType": "VariableDeclaration", "scope": 9123, "src": "746:33:28", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" }, "typeName": { "contractScope": null, "id": 8583, "name": "TBTCDepositToken", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6844, "src": "746:16:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 8586, "name": "feeRebateToken", "nodeType": "VariableDeclaration", "scope": 9123, "src": "785:29:28", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_FeeRebateToken_$6300", "typeString": "contract FeeRebateToken" }, "typeName": { "contractScope": null, "id": 8585, "name": "FeeRebateToken", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6300, "src": "785:14:28", "typeDescriptions": { "typeIdentifier": "t_contract$_FeeRebateToken_$6300", "typeString": "contract FeeRebateToken" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 8588, "name": "createdAt", "nodeType": "VariableDeclaration", "scope": 9123, "src": "821:17:28", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8587, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "821:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "body": { "id": 8601, "nodeType": "Block", "src": "944:44:28", "statements": [ { "expression": { "argumentTypes": null, "id": 8599, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 8596, "name": "createdAt", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8588, "src": "954:9:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 8597, "name": "block", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18350, "src": "966:5:28", "typeDescriptions": { "typeIdentifier": "t_magic_block", "typeString": "block" } }, "id": 8598, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "timestamp", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "966:15:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "954:27:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 8600, "nodeType": "ExpressionStatement", "src": "954:27:28" } ] }, "documentation": null, "id": 8602, "implemented": true, "kind": "constructor", "modifiers": [ { "arguments": [ { "argumentTypes": null, "id": 8593, "name": "_systemAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8590, "src": "924:14:28", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "id": 8594, "modifierName": { "argumentTypes": null, "id": 8592, "name": "TBTCSystemAuthority", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8399, "src": "904:19:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_TBTCSystemAuthority_$8399_$", "typeString": "type(contract TBTCSystemAuthority)" } }, "nodeType": "ModifierInvocation", "src": "904:35:28" } ], "name": "", "nodeType": "FunctionDefinition", "parameters": { "id": 8591, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8590, "name": "_systemAddress", "nodeType": "VariableDeclaration", "scope": 8602, "src": "857:22:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 8589, "name": "address", "nodeType": "ElementaryTypeName", "src": "857:7:28", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "856:24:28" }, "returnParameters": { "id": 8595, "nodeType": "ParameterList", "parameters": [], "src": "944:0:28" }, "scope": 9123, "src": "845:143:28", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 8625, "nodeType": "Block", "src": "1585:127:28", "statements": [ { "expression": { "argumentTypes": null, "id": 8615, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 8613, "name": "tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8582, "src": "1595:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 8614, "name": "_tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8604, "src": "1607:10:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "src": "1595:22:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "id": 8616, "nodeType": "ExpressionStatement", "src": "1595:22:28" }, { "expression": { "argumentTypes": null, "id": 8619, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 8617, "name": "tbtcDepositToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8584, "src": "1627:16:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 8618, "name": "_tbtcDepositToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8606, "src": "1646:17:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "src": "1627:36:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "id": 8620, "nodeType": "ExpressionStatement", "src": "1627:36:28" }, { "expression": { "argumentTypes": null, "id": 8623, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 8621, "name": "feeRebateToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8586, "src": "1673:14:28", "typeDescriptions": { "typeIdentifier": "t_contract$_FeeRebateToken_$6300", "typeString": "contract FeeRebateToken" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 8622, "name": "_feeRebateToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8608, "src": "1690:15:28", "typeDescriptions": { "typeIdentifier": "t_contract$_FeeRebateToken_$6300", "typeString": "contract FeeRebateToken" } }, "src": "1673:32:28", "typeDescriptions": { "typeIdentifier": "t_contract$_FeeRebateToken_$6300", "typeString": "contract FeeRebateToken" } }, "id": 8624, "nodeType": "ExpressionStatement", "src": "1673:32:28" } ] }, "documentation": "@notice Set external contracts needed by the Vending Machine.\n @dev Addresses are used to update the local contract instance.\n @param _tbtcToken TBTCToken contract. More info in `TBTCToken`.\n @param _tbtcDepositToken TBTCDepositToken (TDT) contract. More info in `TBTCDepositToken`.\n @param _feeRebateToken FeeRebateToken (FRT) contract. More info in `FeeRebateToken`.", "id": 8626, "implemented": true, "kind": "function", "modifiers": [ { "arguments": null, "id": 8611, "modifierName": { "argumentTypes": null, "id": 8610, "name": "onlyTbtcSystem", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8398, "src": "1570:14:28", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "1570:14:28" } ], "name": "setExternalAddresses", "nodeType": "FunctionDefinition", "parameters": { "id": 8609, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8604, "name": "_tbtcToken", "nodeType": "VariableDeclaration", "scope": 8626, "src": "1450:20:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" }, "typeName": { "contractScope": null, "id": 8603, "name": "TBTCToken", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 8561, "src": "1450:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 8606, "name": "_tbtcDepositToken", "nodeType": "VariableDeclaration", "scope": 8626, "src": "1480:34:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" }, "typeName": { "contractScope": null, "id": 8605, "name": "TBTCDepositToken", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6844, "src": "1480:16:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 8608, "name": "_feeRebateToken", "nodeType": "VariableDeclaration", "scope": 8626, "src": "1524:30:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_FeeRebateToken_$6300", "typeString": "contract FeeRebateToken" }, "typeName": { "contractScope": null, "id": 8607, "name": "FeeRebateToken", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6300, "src": "1524:14:28", "typeDescriptions": { "typeIdentifier": "t_contract$_FeeRebateToken_$6300", "typeString": "contract FeeRebateToken" } }, "value": null, "visibility": "internal" } ], "src": "1440:120:28" }, "returnParameters": { "id": 8612, "nodeType": "ParameterList", "parameters": [], "src": "1585:0:28" }, "scope": 9123, "src": "1411:301:28", "stateMutability": "nonpayable", "superFunction": null, "visibility": "external" }, { "body": { "id": 8702, "nodeType": "Block", "src": "2162:804:28", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8634, "name": "_tdtId", "nodeType": 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"typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 8641, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2313:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 8643, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2313:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 8640, "name": "isQualified", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8851, "src": "2301:11:28", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_payable_$returns$_t_bool_$", "typeString": "function (address payable) view returns (bool)" } }, "id": 8644, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2301:28:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "4465706f736974206d757374206265207175616c6966696564", "id": 8645, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2331:27:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_c21bbbdd48d64ddf86406b2b294c1812da230a697a7327d81acdb47492a78bee", "typeString": "literal_string \"Deposit must be qualified\"" }, "value": "Deposit must be qualified" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_c21bbbdd48d64ddf86406b2b294c1812da230a697a7327d81acdb47492a78bee", "typeString": "literal_string \"Deposit must be qualified\"" } ], "id": 8639, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 18363, 18364 ], "referencedDeclaration": 18364, "src": "2293:7:28", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 8646, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2293:66:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 8647, "nodeType": "ExpressionStatement", "src": "2293:66:28" }, { "assignments": [ 8649 ], "declarations": [ { "constant": false, "id": 8649, "name": "depositValue", "nodeType": "VariableDeclaration", "scope": 8702, "src": "2370:20:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8648, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2370:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 8659, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8653, "name": "_tdtId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8628, "src": "2417:6:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 8652, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2409:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint160_$", "typeString": "type(uint160)" }, "typeName": "uint160" }, "id": 8654, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2409:15:28", "typeDescriptions": { "typeIdentifier": "t_uint160", "typeString": "uint160" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint160", "typeString": "uint160" } ], "id": 8651, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2401:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 8655, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2401:24:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 8650, "name": "Deposit", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1134, "src": "2393:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_Deposit_$1134_$", "typeString": "type(contract Deposit)" } }, "id": 8656, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2393:33:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "id": 8657, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "lotSizeTbtc", "nodeType": "MemberAccess", "referencedDeclaration": 578, "src": "2393:45:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$__$returns$_t_uint256_$", "typeString": "function () view external returns (uint256)" } }, "id": 8658, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2393:47:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "2370:70:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 8667, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 8663, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18360, "src": "2491:3:28", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 8664, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2491:10:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "expression": { "argumentTypes": null, "id": 8661, "name": "tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8582, "src": "2471:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "id": 8662, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "balanceOf", "nodeType": "MemberAccess", "referencedDeclaration": 17007, "src": "2471:19:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_address_$returns$_t_uint256_$", "typeString": "function (address) view external returns (uint256)" } }, "id": 8665, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2471:31:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "argumentTypes": null, "id": 8666, "name": "depositValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8649, "src": "2506:12:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "2471:47:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "4e6f7420656e6f756768205442544320666f72205444542065786368616e6765", "id": 8668, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2532:34:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_f95a7dd47660fc63dd51c6ca8448832be948519badc589a89c702a3dfe207602", "typeString": "literal_string \"Not enough TBTC for TDT exchange\"" }, "value": "Not enough TBTC for TDT exchange" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_f95a7dd47660fc63dd51c6ca8448832be948519badc589a89c702a3dfe207602", "typeString": "literal_string \"Not enough TBTC for TDT exchange\"" } ], "id": 8660, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 18363, 18364 ], "referencedDeclaration": 18364, "src": "2450:7:28", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 8669, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2450:126:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 8670, "nodeType": "ExpressionStatement", "src": "2450:126:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 8674, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18360, "src": "2605:3:28", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 8675, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2605:10:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 8676, "name": "depositValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8649, "src": "2617:12:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8671, "name": "tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8582, "src": "2586:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "id": 8673, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "burnFrom", "nodeType": "MemberAccess", "referencedDeclaration": 8512, "src": "2586:18:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256) external" } }, "id": 8677, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2586:44:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 8678, "nodeType": "ExpressionStatement", "src": "2586:44:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 8687, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8682, "name": "_tdtId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8628, "src": "2818:6:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8680, "name": "tbtcDepositToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8584, "src": "2793:16:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "id": 8681, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "ownerOf", "nodeType": "MemberAccess", "referencedDeclaration": 17591, "src": "2793:24:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_uint256_$returns$_t_address_$", "typeString": "function (uint256) view external returns (address)" } }, "id": 8683, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2793:32:28", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8685, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18460, "src": "2837:4:28", "typeDescriptions": { "typeIdentifier": "t_contract$_VendingMachine_$9123", "typeString": "contract VendingMachine" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_VendingMachine_$9123", "typeString": "contract VendingMachine" } ], "id": 8684, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2829:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 8686, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2829:13:28", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "2793:49:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "4465706f736974206973206c6f636b6564", "id": 8688, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2856:19:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_1b6051e6b5b6abd7e8969dde06da062cc87a0aba61cd0b3291aa6014f6cd874e", "typeString": "literal_string \"Deposit is locked\"" }, "value": "Deposit is locked" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_1b6051e6b5b6abd7e8969dde06da062cc87a0aba61cd0b3291aa6014f6cd874e", "typeString": "literal_string \"Deposit is locked\"" } ], "id": 8679, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 18363, 18364 ], "referencedDeclaration": 18364, "src": "2772:7:28", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 8689, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2772:113:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 8690, "nodeType": "ExpressionStatement", "src": "2772:113:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8695, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18460, "src": "2933:4:28", "typeDescriptions": { "typeIdentifier": "t_contract$_VendingMachine_$9123", "typeString": "contract VendingMachine" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_VendingMachine_$9123", "typeString": "contract VendingMachine" } ], "id": 8694, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2925:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 8696, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2925:13:28", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 8697, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18360, "src": "2940:3:28", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 8698, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "2940:10:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 8699, "name": "_tdtId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8628, "src": "2952:6:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8691, "name": "tbtcDepositToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8584, "src": "2895:16:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "id": 8693, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "transferFrom", "nodeType": "MemberAccess", "referencedDeclaration": 17730, "src": "2895:29:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,address,uint256) external" } }, "id": 8700, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2895:64:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 8701, "nodeType": "ExpressionStatement", "src": "2895:64:28" } ] }, "documentation": "@notice Burns TBTC and transfers the tBTC Deposit Token to the caller\n as long as it is qualified.\n @dev We burn the lotSize of the Deposit in order to maintain\n the TBTC supply peg in the Vending Machine. VendingMachine must be approved\n by the caller to burn the required amount.\n @param _tdtId ID of tBTC Deposit Token to buy.", "id": 8703, "implemented": true, "kind": "function", "modifiers": [], "name": "tbtcToTdt", "nodeType": "FunctionDefinition", "parameters": { "id": 8629, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8628, "name": "_tdtId", "nodeType": "VariableDeclaration", "scope": 8703, "src": "2137:14:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8627, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2137:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "2136:16:28" }, "returnParameters": { "id": 8630, "nodeType": "ParameterList", "parameters": [], "src": "2162:0:28" }, "scope": 9123, "src": "2118:848:28", "stateMutability": "nonpayable", "superFunction": null, "visibility": "external" }, { "body": { "id": 8819, "nodeType": "Block", "src": "3301:1096:28", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8711, "name": "_tdtId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8705, "src": "3356:6:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8709, "name": "tbtcDepositToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8584, "src": "3332:16:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "id": 8710, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "exists", "nodeType": "MemberAccess", "referencedDeclaration": 6810, "src": "3332:23:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view external returns (bool)" } }, "id": 8712, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3332:31:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "74425443204465706f73697420546f6b656e20646f6573206e6f74206578697374", "id": 8713, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3377:35:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_7dc83a5a17125a17ee5b2d669dbee7923570818e4951396bb4642237d0a2bbe4", "typeString": "literal_string \"tBTC Deposit Token does not exist\"" }, "value": "tBTC Deposit Token does not exist" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_7dc83a5a17125a17ee5b2d669dbee7923570818e4951396bb4642237d0a2bbe4", "typeString": "literal_string \"tBTC Deposit Token does not exist\"" } ], "id": 8708, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 18363, 18364 ], "referencedDeclaration": 18364, "src": "3311:7:28", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 8714, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3311:111:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 8715, "nodeType": "ExpressionStatement", "src": "3311:111:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8719, "name": "_tdtId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8705, "src": "3460:6:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 8718, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "3452:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 8720, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3452:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": 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"4064:9:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8778, "name": "depositValue", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8753, "src": "4047:12:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 8779, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sub", "nodeType": "MemberAccess", "referencedDeclaration": 16774, "src": "4047:16:28", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 8781, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4047:27:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8773, "name": "tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8582, "src": "4020:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "id": 8775, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "mint", "nodeType": "MemberAccess", "referencedDeclaration": 8499, "src": "4020:14:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 8782, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4020:55:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 8783, "nodeType": "ExpressionStatement", "src": "4020:55:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8788, "name": "_tdtId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8705, "src": "4112:6:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 8787, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "4104:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 8789, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4104:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 8790, "name": "signerFee", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8747, "src": "4121:9:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8784, "name": "tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8582, "src": "4089:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "id": 8786, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "mint", "nodeType": "MemberAccess", "referencedDeclaration": 8499, "src": "4089:14:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 8791, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4089:42:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 8792, "nodeType": "ExpressionStatement", "src": "4089:42:28" } ] } }, { "condition": { "argumentTypes": null, "id": 8808, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "4295:30:28", "subExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8806, "name": "_tdtId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8705, "src": "4318:6:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8804, "name": "feeRebateToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8586, "src": "4296:14:28", "typeDescriptions": { "typeIdentifier": "t_contract$_FeeRebateToken_$6300", "typeString": "contract FeeRebateToken" } }, "id": 8805, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "exists", "nodeType": "MemberAccess", "referencedDeclaration": 6299, "src": "4296:21:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view external returns (bool)" } }, "id": 8807, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4296:29:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 8818, "nodeType": "IfStatement", "src": "4291:100:28", "trueBody": { "id": 8817, "nodeType": "Block", "src": "4327:64:28", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 8812, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18360, "src": "4361:3:28", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 8813, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4361:10:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 8814, "name": "_tdtId", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8705, "src": "4373:6:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8809, "name": "feeRebateToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8586, "src": "4341:14:28", "typeDescriptions": { "typeIdentifier": "t_contract$_FeeRebateToken_$6300", "typeString": "contract FeeRebateToken" } }, "id": 8811, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "mint", "nodeType": "MemberAccess", "referencedDeclaration": 6287, "src": "4341:19:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256) external" } }, "id": 8815, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4341:39:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 8816, "nodeType": "ExpressionStatement", "src": "4341:39:28" } ] } } ] }, "documentation": "@notice Transfer the tBTC Deposit Token and mint TBTC.\n @dev Transfers TDT from caller to vending machine, and mints TBTC to caller.\n Vending Machine must be approved to transfer TDT by the caller.\n @param _tdtId ID of tBTC Deposit Token to sell.", "id": 8820, "implemented": true, "kind": "function", "modifiers": [], "name": "tdtToTbtc", "nodeType": "FunctionDefinition", "parameters": { "id": 8706, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8705, "name": "_tdtId", "nodeType": "VariableDeclaration", "scope": 8820, "src": "3278:14:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8704, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "3278:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "3277:16:28" }, "returnParameters": { "id": 8707, "nodeType": "ParameterList", "parameters": [], "src": "3301:0:28" }, "scope": 9123, "src": "3259:1138:28", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 8836, "nodeType": "Block", "src": "4773:70:28", "statements": [ { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 8834, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8830, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8822, "src": "4812:6:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 8827, "name": "getMintedSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8861, "src": "4790:15:28", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_uint256_$", "typeString": "function () view returns (uint256)" } }, "id": 8828, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4790:17:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 8829, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "add", "nodeType": "MemberAccess", "referencedDeclaration": 16749, "src": "4790:21:28", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 8831, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4790:29:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 8832, "name": "getMaxSupply", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8990, "src": "4822:12:28", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_uint256_$", "typeString": "function () view returns (uint256)" } }, "id": 8833, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4822:14:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4790:46:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 8826, "id": 8835, "nodeType": "Return", "src": "4783:53:28" } ] }, "documentation": "@notice Return whether an amount of TBTC can be minted according to the supply cap\n schedule\n @dev This function is also used by TBTCSystem to decide whether to allow a new deposit.\n @return True if the amount can be minted without hitting the max supply, false otherwise.", "id": 8837, "implemented": true, "kind": "function", "modifiers": [], "name": "canMint", "nodeType": "FunctionDefinition", "parameters": { "id": 8823, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8822, "name": "amount", "nodeType": "VariableDeclaration", "scope": 8837, "src": "4730:14:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8821, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "4730:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "4729:16:28" }, "returnParameters": { "id": 8826, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8825, "name": "", "nodeType": "VariableDeclaration", "scope": 8837, "src": "4767:4:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 8824, "name": "bool", "nodeType": "ElementaryTypeName", "src": "4767:4:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "4766:6:28" }, "scope": 9123, "src": "4713:130:28", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 8850, "nodeType": "Block", "src": "5092:59:28", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8845, "name": "_depositAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8839, "src": "5117:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 8844, "name": "Deposit", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1134, "src": "5109:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_Deposit_$1134_$", "typeString": "type(contract Deposit)" } }, "id": 8846, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5109:24:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "id": 8847, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "inActive", "nodeType": "MemberAccess", "referencedDeclaration": 609, "src": "5109:33:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$__$returns$_t_bool_$", "typeString": "function () view external returns (bool)" } }, "id": 8848, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5109:35:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 8843, "id": 8849, "nodeType": "Return", "src": "5102:42:28" } ] }, "documentation": "@notice Determines whether a deposit is qualified for minting TBTC.\n @param _depositAddress The address of the deposit", "id": 8851, "implemented": true, "kind": "function", "modifiers": [], "name": "isQualified", "nodeType": "FunctionDefinition", "parameters": { "id": 8840, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8839, "name": "_depositAddress", "nodeType": "VariableDeclaration", "scope": 8851, "src": "5004:31:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "typeName": { "id": 8838, "name": "address", "nodeType": "ElementaryTypeName", "src": "5004:15:28", "stateMutability": "payable", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "value": null, "visibility": "internal" } ], "src": "5003:33:28" }, "returnParameters": { "id": 8843, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8842, "name": "", "nodeType": "VariableDeclaration", "scope": 8851, "src": "5082:4:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 8841, "name": "bool", "nodeType": "ElementaryTypeName", "src": "5082:4:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "src": "5081:6:28" }, "scope": 9123, "src": "4983:168:28", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 8860, "nodeType": "Block", "src": "5291:47:28", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 8856, "name": "tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8582, "src": "5308:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "id": 8857, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "totalSupply", "nodeType": "MemberAccess", "referencedDeclaration": 16995, "src": "5308:21:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$__$returns$_t_uint256_$", "typeString": "function () view external returns (uint256)" } }, "id": 8858, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5308:23:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 8855, "id": 8859, "nodeType": "Return", "src": "5301:30:28" } ] }, "documentation": "@notice Return the minted TBTC supply in weitoshis (BTC * 10 ** 18).", "id": 8861, "implemented": true, "kind": "function", "modifiers": [], "name": "getMintedSupply", "nodeType": "FunctionDefinition", "parameters": { "id": 8852, "nodeType": "ParameterList", "parameters": [], "src": "5258:2:28" }, "returnParameters": { "id": 8855, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8854, "name": "", "nodeType": "VariableDeclaration", "scope": 8861, "src": "5282:7:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8853, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5282:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5281:9:28" }, "scope": 9123, "src": "5234:104:28", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 8989, "nodeType": "Block", "src": "5873:820:28", "statements": [ { "assignments": [ 8867 ], "declarations": [ { "constant": false, "id": 8867, "name": "age", "nodeType": "VariableDeclaration", "scope": 8989, "src": "5883:11:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8866, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5883:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 8872, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 8871, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 8868, "name": "block", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18350, "src": "5897:5:28", "typeDescriptions": { "typeIdentifier": "t_magic_block", "typeString": "block" } }, "id": 8869, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "timestamp", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "5897:15:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 8870, "name": "createdAt", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8588, "src": "5915:9:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "5897:27:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "5883:41:28" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 8875, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 8873, "name": "age", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8867, "src": "5939:3:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "hexValue": "32", "id": 8874, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5945:6:28", "subdenomination": "days", "typeDescriptions": { "typeIdentifier": "t_rational_172800_by_1", "typeString": "int_const 172800" }, "value": "2" }, "src": "5939:12:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 8883, "nodeType": "IfStatement", "src": "5935:60:28", "trueBody": { "id": 8882, "nodeType": "Block", "src": "5953:42:28", "statements": [ { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_2000000000000000000_by_1", "typeString": "int_const 2000000000000000000" }, "id": 8880, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "32", "id": 8876, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "5974:1:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 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"**", "rightExpression": { "argumentTypes": null, "hexValue": "3138", "id": 8944, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6421:2:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "src": "6417:6:28", "typeDescriptions": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" } }, "src": "6410:13:28", "typeDescriptions": { "typeIdentifier": "t_rational_1500000000000000000000_by_1", "typeString": "int_const 1500000000000000000000" } }, "functionReturnParameters": 8865, "id": 8947, "nodeType": "Return", "src": "6403:20:28" } ] } }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 8952, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 8950, "name": "age", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8867, "src": "6448:3:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "hexValue": "3439", "id": 8951, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6454:7:28", "subdenomination": "days", "typeDescriptions": { "typeIdentifier": "t_rational_4233600_by_1", "typeString": "int_const 4233600" }, "value": "49" }, "src": "6448:13:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 8960, "nodeType": "IfStatement", "src": "6444:64:28", "trueBody": { "id": 8959, "nodeType": "Block", "src": "6463:45:28", "statements": [ { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_2000000000000000000000_by_1", "typeString": "int_const 2000000000000000000000" }, "id": 8957, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "32303030", "id": 8953, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6484:4:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2000_by_1", "typeString": "int_const 2000" }, "value": "2000" }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" }, "id": 8956, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3130", "id": 8954, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6491:2:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_10_by_1", "typeString": "int_const 10" }, "value": "10" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "hexValue": "3138", "id": 8955, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6495:2:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "src": "6491:6:28", "typeDescriptions": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" } }, "src": "6484:13:28", "typeDescriptions": { "typeIdentifier": "t_rational_2000000000000000000000_by_1", "typeString": "int_const 2000000000000000000000" } }, "functionReturnParameters": 8865, "id": 8958, "nodeType": "Return", "src": "6477:20:28" } ] } }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 8963, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 8961, "name": "age", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8867, "src": "6522:3:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "hexValue": "3536", "id": 8962, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6528:7:28", "subdenomination": "days", "typeDescriptions": { "typeIdentifier": "t_rational_4838400_by_1", "typeString": "int_const 4838400" }, "value": "56" }, "src": "6522:13:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 8971, "nodeType": "IfStatement", "src": "6518:64:28", "trueBody": { "id": 8970, "nodeType": "Block", "src": "6537:45:28", "statements": [ { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_2500000000000000000000_by_1", "typeString": "int_const 2500000000000000000000" }, "id": 8968, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "32353030", "id": 8964, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6558:4:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2500_by_1", "typeString": "int_const 2500" }, "value": "2500" }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" }, "id": 8967, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3130", "id": 8965, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6565:2:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_10_by_1", "typeString": "int_const 10" }, "value": "10" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "hexValue": "3138", "id": 8966, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6569:2:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "src": "6565:6:28", "typeDescriptions": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" } }, "src": "6558:13:28", "typeDescriptions": { "typeIdentifier": "t_rational_2500000000000000000000_by_1", "typeString": "int_const 2500000000000000000000" } }, "functionReturnParameters": 8865, "id": 8969, "nodeType": "Return", "src": "6551:20:28" } ] } }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 8974, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 8972, "name": "age", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8867, "src": "6596:3:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "hexValue": "3633", "id": 8973, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6602:7:28", "subdenomination": "days", "typeDescriptions": { "typeIdentifier": "t_rational_5443200_by_1", "typeString": "int_const 5443200" }, "value": "63" }, "src": "6596:13:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 8982, "nodeType": "IfStatement", "src": "6592:64:28", "trueBody": { "id": 8981, "nodeType": "Block", "src": "6611:45:28", "statements": [ { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_3000000000000000000000_by_1", "typeString": "int_const 3000000000000000000000" }, "id": 8979, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "33303030", "id": 8975, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6632:4:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_3000_by_1", "typeString": "int_const 3000" }, "value": "3000" }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" }, "id": 8978, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3130", "id": 8976, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6639:2:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_10_by_1", "typeString": "int_const 10" }, "value": "10" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "hexValue": "3138", "id": 8977, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6643:2:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "src": "6639:6:28", "typeDescriptions": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" } }, "src": "6632:13:28", "typeDescriptions": { "typeIdentifier": "t_rational_3000000000000000000000_by_1", "typeString": "int_const 3000000000000000000000" } }, "functionReturnParameters": 8865, "id": 8980, "nodeType": "Return", "src": "6625:20:28" } ] } }, { "expression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_21000000000000000000000000_by_1", "typeString": "int_const 21000000000000000000000000" }, "id": 8987, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "32316536", "id": 8983, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6673:4:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_21000000_by_1", "typeString": "int_const 21000000" }, "value": "21e6" }, "nodeType": "BinaryOperation", "operator": "*", "rightExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" }, "id": 8986, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3130", "id": 8984, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6680:2:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_10_by_1", "typeString": "int_const 10" }, "value": "10" }, "nodeType": "BinaryOperation", "operator": "**", "rightExpression": { "argumentTypes": null, "hexValue": "3138", "id": 8985, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "6684:2:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "src": "6680:6:28", "typeDescriptions": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" } }, "src": "6673:13:28", "typeDescriptions": { "typeIdentifier": "t_rational_21000000000000000000000000_by_1", "typeString": "int_const 21000000000000000000000000" } }, "functionReturnParameters": 8865, "id": 8988, "nodeType": "Return", "src": "6666:20:28" } ] }, "documentation": "@notice Get the maximum TBTC token supply based on the age of the\n contract deployment. The supply cap starts at 2 BTC for the two\n days, 100 for the first week, 250 for the next, then 500, 750,\n 1000, 1500, 2000, 2500, and 3000... finally removing the minting\n restriction after 9 weeks and returning 21M BTC as a sanity\n check.\n @return The max supply in weitoshis (BTC * 10 ** 18).", "id": 8990, "implemented": true, "kind": "function", "modifiers": [], "name": "getMaxSupply", "nodeType": "FunctionDefinition", "parameters": { "id": 8862, "nodeType": "ParameterList", "parameters": [], "src": "5840:2:28" }, "returnParameters": { "id": 8865, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8864, "name": "", "nodeType": "VariableDeclaration", "scope": 8990, "src": "5864:7:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8863, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "5864:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "5863:9:28" }, "scope": 9123, "src": "5819:874:28", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 9036, "nodeType": "Block", "src": "7189:425:28", "statements": [ { "assignments": [ 9012 ], "declarations": [ { "constant": false, "id": 9012, "name": "_d", "nodeType": "VariableDeclaration", "scope": 9036, "src": "7256:10:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" }, "typeName": { "contractScope": null, "id": 9011, "name": "Deposit", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1134, "src": "7256:7:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "value": null, "visibility": "internal" } ], "id": 9016, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9014, "name": "_depositAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8992, "src": "7277:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 9013, "name": "Deposit", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1134, "src": "7269:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_Deposit_$1134_$", "typeString": "type(contract Deposit)" } }, "id": 9015, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7269:24:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "nodeType": "VariableDeclarationStatement", "src": "7256:37:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9020, "name": "_txVersion", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8994, "src": "7342:10:28", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, { "argumentTypes": null, "id": 9021, "name": "_txInputVector", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8996, "src": "7366:14:28", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 9022, "name": "_txOutputVector", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8998, "src": "7394:15:28", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 9023, "name": "_txLocktime", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9000, "src": "7423:11:28", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, { "argumentTypes": null, "id": 9024, "name": "_fundingOutputIndex", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9002, "src": "7448:19:28", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, { "argumentTypes": null, "id": 9025, "name": "_merkleProof", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9004, "src": "7481:12:28", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 9026, "name": "_txIndexInBlock", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9006, "src": "7507:15:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 9027, "name": "_bitcoinHeaders", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9008, "src": "7536:15:28", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, { "typeIdentifier": "t_uint8", "typeString": "uint8" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "expression": { "argumentTypes": null, "id": 9017, "name": "_d", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9012, "src": "7303:2:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "id": 9019, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "provideBTCFundingProof", "nodeType": "MemberAccess", "referencedDeclaration": 842, "src": "7303:25:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_bytes4_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$_t_bytes4_$_t_uint8_$_t_bytes_memory_ptr_$_t_uint256_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (bytes4,bytes memory,bytes memory,bytes4,uint8,bytes memory,uint256,bytes memory) external" } }, "id": 9028, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7303:258:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9029, "nodeType": "ExpressionStatement", "src": "7303:258:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9032, "name": "_depositAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8992, "src": "7590:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 9031, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "7582:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint256" }, "id": 9033, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7582:24:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 9030, "name": "tdtToTbtc", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8820, "src": "7572:9:28", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_uint256_$returns$__$", "typeString": "function (uint256)" } }, "id": 9034, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7572:35:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9035, "nodeType": "ExpressionStatement", "src": "7572:35:28" } ] }, "documentation": "@notice Qualifies a deposit and mints TBTC.\n @dev User must allow VendingManchine to transfer TDT.", "id": 9037, "implemented": true, "kind": "function", "modifiers": [], "name": "unqualifiedDepositToTbtc", "nodeType": "FunctionDefinition", "parameters": { "id": 9009, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 8992, "name": "_depositAddress", "nodeType": "VariableDeclaration", "scope": 9037, "src": "6873:31:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "typeName": { "id": 8991, "name": "address", "nodeType": "ElementaryTypeName", "src": "6873:15:28", "stateMutability": "payable", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 8994, "name": "_txVersion", "nodeType": "VariableDeclaration", "scope": 9037, "src": "6914:17:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 8993, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "6914:6:28", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 8996, "name": "_txInputVector", "nodeType": "VariableDeclaration", "scope": 9037, "src": "6941:27:28", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 8995, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "6941:5:28", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 8998, "name": "_txOutputVector", "nodeType": "VariableDeclaration", "scope": 9037, "src": "6978:28:28", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 8997, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "6978:5:28", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9000, "name": "_txLocktime", "nodeType": "VariableDeclaration", "scope": 9037, "src": "7016:18:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 8999, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "7016:6:28", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9002, "name": "_fundingOutputIndex", "nodeType": "VariableDeclaration", "scope": 9037, "src": "7044:25:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 9001, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "7044:5:28", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9004, "name": "_merkleProof", "nodeType": "VariableDeclaration", "scope": 9037, "src": "7079:25:28", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 9003, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "7079:5:28", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9006, "name": "_txIndexInBlock", "nodeType": "VariableDeclaration", "scope": 9037, "src": "7114:23:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9005, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "7114:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 9008, "name": "_bitcoinHeaders", "nodeType": "VariableDeclaration", "scope": 9037, "src": "7147:28:28", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 9007, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "7147:5:28", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "6863:318:28" }, "returnParameters": { "id": 9010, "nodeType": "ParameterList", "parameters": [], "src": "7189:0:28" }, "scope": 9123, "src": "6830:784:28", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 9121, "nodeType": "Block", "src": "8344:777:28", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9050, "name": "_depositAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9039, "src": "8464:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 9049, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8456:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint256" }, "id": 9051, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8456:24:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 9047, "name": "tbtcDepositToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8584, "src": "8432:16:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "id": 9048, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "exists", "nodeType": "MemberAccess", "referencedDeclaration": 6810, "src": "8432:23:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_uint256_$returns$_t_bool_$", "typeString": "function (uint256) view external returns (bool)" } }, "id": 9052, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8432:49:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "74425443204465706f73697420546f6b656e20646f6573206e6f74206578697374", "id": 9053, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "8495:35:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_7dc83a5a17125a17ee5b2d669dbee7923570818e4951396bb4642237d0a2bbe4", "typeString": "literal_string \"tBTC Deposit Token does not exist\"" }, "value": "tBTC Deposit Token does not exist" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_7dc83a5a17125a17ee5b2d669dbee7923570818e4951396bb4642237d0a2bbe4", "typeString": "literal_string \"tBTC Deposit Token does not exist\"" } ], "id": 9046, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 18363, 18364 ], "referencedDeclaration": 18364, "src": "8411:7:28", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 9054, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8411:129:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9055, "nodeType": "ExpressionStatement", "src": "8411:129:28" }, { "assignments": [ 9057 ], "declarations": [ { "constant": false, "id": 9057, "name": "_d", "nodeType": "VariableDeclaration", "scope": 9121, "src": "8550:10:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" }, "typeName": { "contractScope": null, "id": 9056, "name": "Deposit", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1134, "src": "8550:7:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "value": null, "visibility": "internal" } ], "id": 9061, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9059, "name": "_depositAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9039, "src": "8571:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 9058, "name": "Deposit", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1134, "src": "8563:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_Deposit_$1134_$", "typeString": "type(contract Deposit)" } }, "id": 9060, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8563:24:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "nodeType": "VariableDeclarationStatement", "src": "8550:37:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9065, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18360, "src": "8617:3:28", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9066, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8617:10:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 9067, "name": "_d", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9057, "src": "8629:2:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "id": 9068, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "lotSizeTbtc", "nodeType": "MemberAccess", "referencedDeclaration": 578, "src": "8629:14:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$__$returns$_t_uint256_$", "typeString": "function () view external returns (uint256)" } }, "id": 9069, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8629:16:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 9062, "name": "tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8582, "src": "8598:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "id": 9064, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "burnFrom", "nodeType": "MemberAccess", "referencedDeclaration": 8512, "src": "8598:18:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256) external" } }, "id": 9070, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8598:48:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9071, "nodeType": "ExpressionStatement", "src": "8598:48:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9075, "name": "_depositAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9039, "src": "8681:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9077, "name": "_depositAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9039, "src": "8706:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "id": 9076, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8698:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint256" }, "id": 9078, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8698:24:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 9072, "name": "tbtcDepositToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8584, "src": "8656:16:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCDepositToken_$6844", "typeString": "contract TBTCDepositToken" } }, "id": 9074, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "approve", "nodeType": "MemberAccess", "referencedDeclaration": 17638, "src": "8656:24:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$__$", "typeString": "function (address,uint256) external" } }, "id": 9079, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8656:67:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9080, "nodeType": "ExpressionStatement", "src": "8656:67:28" }, { "assignments": [ 9082 ], "declarations": [ { "constant": false, "id": 9082, "name": "tbtcOwed", "nodeType": "VariableDeclaration", "scope": 9121, "src": "8734:16:28", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 9081, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "8734:7:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 9088, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9085, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18360, "src": "8790:3:28", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9086, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8790:10:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "expression": { "argumentTypes": null, "id": 9083, "name": "_d", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9057, "src": "8753:2:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "id": 9084, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "getOwnerRedemptionTbtcRequirement", "nodeType": "MemberAccess", "referencedDeclaration": 965, "src": "8753:36:28", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_address_$returns$_t_uint256_$", "typeString": "function (address) view external returns (uint256)" } }, "id": 9087, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8753:48:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "8734:67:28" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 9091, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 9089, "name": "tbtcOwed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9082, "src": "8816:8:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "!=", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 9090, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "8828:1:28", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "8816:13:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 9111, "nodeType": "IfStatement", "src": "8812:161:28", "trueBody": { "id": 9110, "nodeType": "Block", "src": "8831:142:28", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 9095, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18360, "src": "8868:3:28", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9096, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "8868:10:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9098, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 18460, "src": "8888:4:28", "typeDescriptions": { "typeIdentifier": "t_contract$_VendingMachine_$9123", "typeString": "contract VendingMachine" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_VendingMachine_$9123", "typeString": "contract VendingMachine" } ], "id": 9097, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "8880:7:28", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 9099, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8880:13:28", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 9100, "name": "tbtcOwed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9082, "src": "8895:8:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 9092, "name": "tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8582, "src": "8845:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "id": 9094, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "transferFrom", "nodeType": "MemberAccess", "referencedDeclaration": 17096, "src": "8845:22:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,address,uint256) external returns (bool)" } }, "id": 9101, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8845:59:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 9102, "nodeType": "ExpressionStatement", "src": "8845:59:28" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9106, "name": "_depositAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9039, "src": "8936:15:28", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, { "argumentTypes": null, "id": 9107, "name": "tbtcOwed", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9082, "src": "8953:8:28", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 9103, "name": "tbtcToken", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8582, "src": "8918:9:28", "typeDescriptions": { "typeIdentifier": "t_contract$_TBTCToken_$8561", "typeString": "contract TBTCToken" } }, "id": 9105, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "approve", "nodeType": "MemberAccess", "referencedDeclaration": 17061, "src": "8918:17:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$returns$_t_bool_$", "typeString": "function (address,uint256) external returns (bool)" } }, "id": 9108, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8918:44:28", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 9109, "nodeType": "ExpressionStatement", "src": "8918:44:28" } ] } }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9115, "name": 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"typeIdentifier": "t_address_payable", "typeString": "address payable" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes8", "typeString": "bytes8" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_address_payable", "typeString": "address payable" } ], "expression": { "argumentTypes": null, "id": 9112, "name": "_d", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9057, "src": "8983:2:28", "typeDescriptions": { "typeIdentifier": "t_contract$_Deposit_$1134", "typeString": "contract Deposit" } }, "id": 9114, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "transferAndRequestRedemption", "nodeType": "MemberAccess", "referencedDeclaration": 1124, "src": "8983:31:28", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_bytes8_$_t_bytes_memory_ptr_$_t_address_payable_$returns$__$", "typeString": "function (bytes8,bytes memory,address payable) external" } }, "id": 9119, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "8983:131:28", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 9120, "nodeType": "ExpressionStatement", "src": "8983:131:28" } ] }, "documentation": "@notice Redeems a Deposit by purchasing a TDT with TBTC for _finalRecipient,\n and using the TDT to redeem corresponding Deposit as _finalRecipient.\n This function will revert if the Deposit is not in ACTIVE state.\n @dev Vending Machine transfers TBTC allowance to Deposit.\n @param _depositAddress The address of the Deposit to redeem.\n @param _outputValueBytes The 8-byte Bitcoin transaction output size in Little Endian.\n @param _redeemerOutputScript The redeemer's length-prefixed output script.", "id": 9122, "implemented": true, "kind": "function", "modifiers": [], "name": "tbtcToBtc", 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More info in `TBTCToken`.\n @param _tbtcDepositToken TBTCDepositToken (TDT) contract. More info in `TBTCDepositToken`.\n @param _feeRebateToken FeeRebateToken (FRT) contract. 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9124, "name": "SourceUnit", "src": "0:9124:28" }, "compiler": { "name": "solc", "version": "0.5.17+commit.d19bba13.Emscripten.clang" }, "networks": { "3": { "events": {}, "links": {}, "address": "0x2278FE40270e4110BAf5A6Ca216D5dB3dCd3E220", "transactionHash": "0x5a5c485dc111baeebb4c8a295cb333b3c4376955224c0648a07c2572343f753a" } }, "schemaVersion": "3.3.4", "updatedAt": "2021-11-23T12:02:26.806Z", "networkType": "ethereum", "devdoc": { "details": "The Vending Machine should have exclusive TBTC and FRT (`FeeRebateToken`) minting privileges.", "methods": { "canMint(uint256)": { "details": "This function is also used by TBTCSystem to decide whether to allow a new deposit.", "return": "True if the amount can be minted without hitting the max supply, false otherwise." }, "getMaxSupply()": { "return": "The max supply in weitoshis (BTC * 10 ** 18)." }, "isQualified(address)": { "params": { "_depositAddress": "The address of the deposit" } }, "setExternalAddresses(address,address,address)": { "details": "Addresses are used to update the local contract instance.", "params": { "_feeRebateToken": "FeeRebateToken (FRT) contract. More info in `FeeRebateToken`.", "_tbtcDepositToken": "TBTCDepositToken (TDT) contract. More info in `TBTCDepositToken`.", "_tbtcToken": "TBTCToken contract. More info in `TBTCToken`." } }, "tbtcToBtc(address,bytes8,bytes)": { "details": "Vending Machine transfers TBTC allowance to Deposit.", "params": { "_depositAddress": "The address of the Deposit to redeem.", "_outputValueBytes": "The 8-byte Bitcoin transaction output size in Little Endian.", "_redeemerOutputScript": "The redeemer's length-prefixed output script." } }, "tbtcToTdt(uint256)": { "details": "We burn the lotSize of the Deposit in order to maintain the TBTC supply peg in the Vending Machine. VendingMachine must be approved by the caller to burn the required amount.", "params": { "_tdtId": "ID of tBTC Deposit Token to buy." } }, "tdtToTbtc(uint256)": { "details": "Transfers TDT from caller to vending machine, and mints TBTC to caller. Vending Machine must be approved to transfer TDT by the caller.", "params": { "_tdtId": "ID of tBTC Deposit Token to sell." } }, "unqualifiedDepositToTbtc(address,bytes4,bytes,bytes,bytes4,uint8,bytes,uint256,bytes)": { "details": "User must allow VendingManchine to transfer TDT." } }, "title": "Vending Machine" }, "userdoc": { "methods": { "canMint(uint256)": { "notice": "Return whether an amount of TBTC can be minted according to the supply cap schedule" }, "getMaxSupply()": { "notice": "Get the maximum TBTC token supply based on the age of the contract deployment. The supply cap starts at 2 BTC for the two days, 100 for the first week, 250 for the next, then 500, 750, 1000, 1500, 2000, 2500, and 3000... finally removing the minting restriction after 9 weeks and returning 21M BTC as a sanity check." }, "getMintedSupply()": { "notice": "Return the minted TBTC supply in weitoshis (BTC * 10 ** 18)." }, "isQualified(address)": { "notice": "Determines whether a deposit is qualified for minting TBTC." }, "setExternalAddresses(address,address,address)": { "notice": "Set external contracts needed by the Vending Machine." }, "tbtcToBtc(address,bytes8,bytes)": { "notice": "Redeems a Deposit by purchasing a TDT with TBTC for _finalRecipient, and using the TDT to redeem corresponding Deposit as _finalRecipient. This function will revert if the Deposit is not in ACTIVE state." }, "tbtcToTdt(uint256)": { "notice": "Burns TBTC and transfers the tBTC Deposit Token to the caller as long as it is qualified." }, "tdtToTbtc(uint256)": { "notice": "Transfer the tBTC Deposit Token and mint TBTC." }, "unqualifiedDepositToTbtc(address,bytes4,bytes,bytes,bytes4,uint8,bytes,uint256,bytes)": { "notice": "Qualifies a deposit and mints TBTC." } }, "notice": "The Vending Machine swaps TDTs (`TBTCDepositToken`) to TBTC (`TBTCToken`) and vice versa." } }