BancorConverterExtensions

{{
  "language": "Solidity",
  "sources": {
    "BancorConverterExtensions.sol": {
      "content": "// Submitted by EthereumHistory (ethereumhistory.com)\npragma solidity ^0.4.11;\nimport './Owned.sol';\nimport './Utils.sol';\nimport './interfaces/IBancorConverterExtensions.sol';\n\n/**\n    @dev the BancorConverterExtensions contract is an owned contract that serves as a single point of access\n    to the BancorFormula, BancorGasPriceLimit and BancorQuickConverter contracts from all BancorConverter contract instances.\n    it allows upgrading these contracts without the need to update each and every\n    BancorConverter contract instance individually.\n*/\ncontract BancorConverterExtensions is IBancorConverterExtensions, Owned, Utils {\n    IBancorFormula public formula;  // bancor calculation formula contract\n    IBancorGasPriceLimit public gasPriceLimit; // bancor universal gas price limit contract\n    IBancorQuickConverter public quickConverter; // bancor quick converter contract\n\n    /**\n        @dev constructor\n\n        @param _formula         address of a bancor formula contract\n        @param _gasPriceLimit   address of a bancor gas price limit contract\n        @param _quickConverter  address of a bancor quick converter contract\n    */\n    function BancorConverterExtensions(IBancorFormula _formula, IBancorGasPriceLimit _gasPriceLimit, IBancorQuickConverter _quickConverter)\n        validAddress(_formula)\n        validAddress(_gasPriceLimit)\n        validAddress(_quickConverter)\n    {\n        formula = _formula;\n        gasPriceLimit = _gasPriceLimit;\n        quickConverter = _quickConverter;\n    }\n\n    /*\n        @dev allows the owner to update the formula contract address\n\n        @param _formula    address of a bancor formula contract\n    */\n    function setFormula(IBancorFormula _formula)\n        public\n        ownerOnly\n        validAddress(_formula)\n        notThis(_formula)\n    {\n        formula = _formula;\n    }\n\n    /*\n        @dev allows the owner to update the gas price limit contract address\n\n        @param _gasPriceLimit   address of a bancor gas price limit contract\n    */\n    function setGasPriceLimit(IBancorGasPriceLimit _gasPriceLimit)\n        public\n        ownerOnly\n        validAddress(_gasPriceLimit)\n        notThis(_gasPriceLimit)\n    {\n        gasPriceLimit = _gasPriceLimit;\n    }\n\n    /*\n        @dev allows the owner to update the quick converter contract address\n\n        @param _quickConverter  address of a bancor quick converter contract\n    */\n    function setQuickConverter(IBancorQuickConverter _quickConverter)\n        public\n        ownerOnly\n        validAddress(_quickConverter)\n        notThis(_quickConverter)\n    {\n        quickConverter = _quickConverter;\n    }\n}\n"
    },
    "Owned.sol": {
      "content": "pragma solidity ^0.4.11;\nimport './interfaces/IOwned.sol';\n\n/*\n    Provides support and utilities for contract ownership\n*/\ncontract Owned is IOwned {\n    address public owner;\n    address public newOwner;\n\n    event OwnerUpdate(address _prevOwner, address _newOwner);\n\n    /**\n        @dev constructor\n    */\n    function Owned() {\n        owner = msg.sender;\n    }\n\n    // allows execution by the owner only\n    modifier ownerOnly {\n        assert(msg.sender == owner);\n        _;\n    }\n\n    /**\n        @dev allows transferring the contract ownership\n        the new owner still needs to accept the transfer\n        can only be called by the contract owner\n\n        @param _newOwner    new contract owner\n    */\n    function transferOwnership(address _newOwner) public ownerOnly {\n        require(_newOwner != owner);\n        newOwner = _newOwner;\n    }\n\n    /**\n        @dev used by a new owner to accept an ownership transfer\n    */\n    function acceptOwnership() public {\n        require(msg.sender == newOwner);\n        OwnerUpdate(owner, newOwner);\n        owner = newOwner;\n        newOwner = 0x0;\n    }\n}\n"
    },
    "Utils.sol": {
      "content": "pragma solidity ^0.4.11;\n\n/*\n    Utilities & Common Modifiers\n*/\ncontract Utils {\n    /**\n        constructor\n    */\n    function Utils() {\n    }\n\n    // verifies that an amount is greater than zero\n    modifier greaterThanZero(uint256 _amount) {\n        require(_amount > 0);\n        _;\n    }\n\n    // validates an address - currently only checks that it isn't null\n    modifier validAddress(address _address) {\n        require(_address != 0x0);\n        _;\n    }\n\n    // verifies that the address is different than this contract address\n    modifier notThis(address _address) {\n        require(_address != address(this));\n        _;\n    }\n\n    // Overflow protected math functions\n\n    /**\n        @dev returns the sum of _x and _y, asserts if the calculation overflows\n\n        @param _x   value 1\n        @param _y   value 2\n\n        @return sum\n    */\n    function safeAdd(uint256 _x, uint256 _y) internal returns (uint256) {\n        uint256 z = _x + _y;\n        assert(z >= _x);\n        return z;\n    }\n\n    /**\n        @dev returns the difference of _x minus _y, asserts if the subtraction results in a negative number\n\n        @param _x   minuend\n        @param _y   subtrahend\n\n        @return difference\n    */\n    function safeSub(uint256 _x, uint256 _y) internal returns (uint256) {\n        assert(_x >= _y);\n        return _x - _y;\n    }\n\n    /**\n        @dev returns the product of multiplying _x by _y, asserts if the calculation overflows\n\n        @param _x   factor 1\n        @param _y   factor 2\n\n        @return product\n    */\n    function safeMul(uint256 _x, uint256 _y) internal returns (uint256) {\n        uint256 z = _x * _y;\n        assert(_x == 0 || z / _x == _y);\n        return z;\n    }\n}\n"
    },
    "interfaces/IBancorConverterExtensions.sol": {
      "content": "pragma solidity ^0.4.11;\nimport './IBancorFormula.sol';\nimport './IBancorGasPriceLimit.sol';\nimport './IBancorQuickConverter.sol';\n\n/*\n    Bancor Converter Extensions interface\n*/\ncontract IBancorConverterExtensions {\n    function formula() public constant returns (IBancorFormula) {}\n    function gasPriceLimit() public constant returns (IBancorGasPriceLimit) {}\n    function quickConverter() public constant returns (IBancorQuickConverter) {}\n}\n"
    },
    "interfaces/IBancorFormula.sol": {
      "content": "pragma solidity ^0.4.11;\n\n/*\n    Bancor Formula interface\n*/\ncontract IBancorFormula {\n    function calculatePurchaseReturn(uint256 _supply, uint256 _reserveBalance, uint32 _reserveRatio, uint256 _depositAmount) public constant returns (uint256);\n    function calculateSaleReturn(uint256 _supply, uint256 _reserveBalance, uint32 _reserveRatio, uint256 _sellAmount) public constant returns (uint256);\n}\n"
    },
    "interfaces/IBancorGasPriceLimit.sol": {
      "content": "pragma solidity ^0.4.11;\n\n/*\n    Bancor Gas Price Limit interface\n*/\ncontract IBancorGasPriceLimit {\n    function gasPrice() public constant returns (uint256) {}\n}\n"
    },
    "interfaces/IBancorQuickConverter.sol": {
      "content": "pragma solidity ^0.4.11;\nimport './IERC20Token.sol';\n\n/*\n    Bancor Quick Converter interface\n*/\ncontract IBancorQuickConverter {\n    function quickConvert(IERC20Token[] _path, uint256 _amount, uint256 _minReturn) public returns (uint256);\n}\n"
    },
    "interfaces/IERC20Token.sol": {
      "content": "pragma solidity ^0.4.11;\n\n/*\n    ERC20 Standard Token interface\n*/\ncontract IERC20Token {\n    // these functions aren't abstract since the compiler emits automatically generated getter functions as external\n    function name() public constant returns (string) {}\n    function symbol() public constant returns (string) {}\n    function decimals() public constant returns (uint8) {}\n    function totalSupply() public constant returns (uint256) {}\n    function balanceOf(address _owner) public constant returns (uint256) { _owner; }\n    function allowance(address _owner, address _spender) public constant returns (uint256) { _owner; _spender; }\n\n    function transfer(address _to, uint256 _value) public returns (bool success);\n    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);\n    function approve(address _spender, uint256 _value) public returns (bool success);\n}\n"
    },
    "interfaces/IOwned.sol": {
      "content": "pragma solidity ^0.4.11;\n\n/*\n    Owned contract interface\n*/\ncontract IOwned {\n    // this function isn't abstract since the compiler emits automatically generated getter functions as external\n    function owner() public constant returns (address) {}\n\n    function transferOwnership(address _newOwner) public;\n    function acceptOwnership() public;\n}\n"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}}