{"contractName":"InvestorCapValidator","abi":[{"constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"paused","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"moduleName","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"_investorCap","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"sender","type":"address"},{"indexed":true,"name":"investment","type":"address"},{"indexed":false,"name":"newInvestorCount","type":"uint256"}],"name":"LogInvestorCountOverride","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"sender","type":"address"},{"indexed":false,"name":"newInvestorCap","type":"uint256"}],"name":"LogSetInvestorCap","type":"event"},{"anonymous":false,"inputs":[],"name":"Pause","type":"event"},{"anonymous":false,"inputs":[],"name":"Unpause","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"}],"name":"OwnershipRenounced","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"constant":false,"inputs":[{"name":"_token","type":"address"},{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"canSend","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"investment","type":"address"},{"name":"_investorCount","type":"uint256"}],"name":"overrideInvestorCount","outputs":[{"name":"newInvestorCount","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_investorCap","type":"uint256"}],"name":"setInvestorCap","outputs":[{"name":"newInvestorCap","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"getName","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getType","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"investorCap","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"investment","type":"address"}],"name":"investorCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"investment","type":"address"}],"name":"getRemainingInvestors","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"}],"bytecode":"0x608060405260008060146101000a81548160ff02191690831515021790555034801561002a57600080fd5b506040516020806110fe83398101806040528101908080519060200190929190505050336000806101000a81548173ffffffffffffffffffffffffffffffffffffffff021916908373ffffffffffffffffffffffffffffffffffffffff160217905550806002819055505061105a806100a46000396000f3006080604052600436106100db576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff16806313966d7c146100e057806315dae03e1461013757806317d7de7c14610168578063370027091461019b5780633f4ba83a146101f25780634d8b483f146102095780635c975abb146102ae578063715018a6146102dd5780638456cb59146102f45780638da5cb5b1461030b57806393f0899a14610362578063bb10a9d514610395578063c83437e2146103f6578063dccff14714610421578063f2fde38b14610462575b600080fd5b3480156100ec57600080fd5b50610121600480360381019080803573ffffffffffffffffffffffffffffffffffffffff1690602001909291905050506104a5565b6040518082815260200191505060405180910390f35b34801561014357600080fd5b5061014c6104f2565b604051808260ff1660ff16815260200191505060405180910390f35b34801561017457600080fd5b5061017d6104fb565b60405180826000191660001916815260200191505060405180910390f35b3480156101a757600080fd5b506101dc600480360381019080803573ffffffffffffffffffffffffffffffffffffffff169060200190929190505050610523565b6040518082815260200191505060405180910390f35b3480156101fe57600080fd5b5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solidity 0.4.24;\n\nimport \"openzeppelin-solidity/contracts/lifecycle/Pausable.sol\";\nimport \"openzeppelin-solidity/contracts/math/SafeMath.sol\";\nimport \"../interfaces/IModuleContract.sol\";\nimport \"../inheritables/TransferValidator.sol\";\nimport \"../interfaces/IERC20.sol\";\n\n/**\n * @title Transfer Validator that checks if the trade will increase the investorCount above a max number of investors\n */\n\ncontract InvestorCapValidator is TransferValidator, IModuleContract, Pausable {\n    using SafeMath for uint;\n\n    /*----------- Constants -----------*/\n    bytes32 public constant moduleName = \"InvestorCapValidator\";\n\n    /*----------- Globals -----------*/\n    mapping(address => uint) internal investorCounts_;\n    uint internal investorCap_;\n\n    /*----------- Events -----------*/\n    event LogInvestorCountOverride(\n        address indexed sender,\n        address indexed investment,\n        uint newInvestorCount\n    );\n    event LogSetInvestorCap(\n        address indexed sender,\n        uint newInvestorCap\n    );\n\n    /**\n    * @dev Constructor for contract\n    * @param _investorCap maximum number of investors a token can have\n    */\n    constructor(\n        uint _investorCap\n    ) public {\n        investorCap_ = _investorCap;\n    }\n\n    /*----------- Validator Methods -----------*/\n    /**\n    * @dev Validate whether a trade will change the number of investors to a number above the Cap\n    * @param _token address token we are checking\n    * @param _to address The address which you want to transfer to\n    * @param _from address The Address which you want to transfer from\n    * @param _amount uint256 The Amount of tokens being transferred\n    * @return bool\n    */\n    function canSend(address _token, address _from, address _to, uint256 _amount)\n        external\n        returns(bool)\n    {\n        IERC20 token = IERC20(_token);\n        uint toBalance = token.balanceOf(_to);\n        uint fromBalance = token.balanceOf(_from);\n\n        return validateAndUpdateCount(toBalance, fromBalance, _amount, msg.sender);\n    }\n\n    /*----------- Internal Methods -----------*/\n    /**\n    * @dev Validates and updates the balances\n    * @param toBalance balance of to address\n    * @param fromBalance balance of from address\n    * @param amount amount to be traded\n    * @return bool\n    */\n    function validateAndUpdateCount(\n        uint toBalance,\n        uint fromBalance,\n        uint amount,\n        address investment\n    ) \n        internal\n        returns (bool)\n    {\n        bool toIsNew = (toBalance == 0);\n        bool fromIsLeaving = (fromBalance.sub(amount) == 0);\n\n        if (toIsNew && !fromIsLeaving) {\n            if (investorCounts_[investment].add(1) > investorCap_) {\n                return false;\n            }\n            investorCounts_[investment] = investorCounts_[investment].add(1);\n            return true; \n        }\n\n        if (!toIsNew && fromIsLeaving) {\n            investorCounts_[investment] = investorCounts_[investment].sub(1);\n            return true;\n        }\n\n        return true;\n    }\n\n\n    /*----------- Setter Methods -----------*/\n    /**\n    * @dev Sets InvestorCount, \n    *      Allowing the owner to \"catch up\" on trades that occured before module\n    *      was added\n    * @param investment address of investment for which investors are being tracked\n    * @param _investorCount current number of investors\n    * @return uint newInvestorCount\n    */\n    function overrideInvestorCount(\n        address investment,\n        uint _investorCount\n    )\n        external\n        onlyOwner\n        whenNotPaused\n        returns (uint newInvestorCount)\n    {\n        investorCounts_[investment] = _investorCount;\n        emit LogInvestorCountOverride(msg.sender, investment, investorCounts_[investment]);\n        return investorCounts_[investment];\n    }\n\n    /**\n    * @dev Sets InvestorCap, \n    * @param _investorCap maximum number of investors\n    * @return uint newInvestorCap\n    */\n    function setInvestorCap(\n        uint _investorCap\n    )\n        external\n        onlyOwner\n        whenNotPaused\n        returns (uint newInvestorCap)\n    {\n        investorCap_ = _investorCap;\n        emit LogSetInvestorCap(msg.sender, investorCap_);\n        return investorCap_;\n    }\n    \n    /*----------- Getter Methods -----------*/\n    /**\n    * @dev Returns the name of the validator\n    * @return bytes32\n    */\n    function getName()\n        external\n        view\n        returns(bytes32)\n    {\n        return moduleName;\n    }\n\n    /**\n    * @dev Returns the type of the validator\n    * @return uint8\n    */\n    function getType()\n        external\n        view\n        returns(uint8)\n    {\n        return moduleType;\n    }\n\n    /**\n    * @dev Returns the investorCap of the validator\n    * @return uint\n    */\n    function investorCap()\n        external\n        view\n        returns(uint)\n    {\n        return investorCap_;\n    }\n\n    /**\n    * @dev Returns the investorCount of the validator\n    * @param investment address of investment for which to return the investorCount\n    * @return uint\n    */\n    function investorCount(address investment)\n        external\n        view\n        returns(uint)\n    {\n        return investorCounts_[investment];\n    }\n\n    /**\n    * @dev Returns the investorCap - investorCount of the validator\n    * @param investment address of investment for which to return the remaining investors\n    * @return uint\n    */\n    function getRemainingInvestors(address investment)\n        external\n        view\n        returns(uint)\n    {\n        return (investorCap_ - investorCounts_[investment]);\n    }\n}\n","compiler":{"name":"solc","version":"0.4.24+commit.e67f0147.Emscripten.clang"},"networks":{},"schemaVersion":"2.0.1","updatedAt":"2019-02-13T13:56:44.029Z"}