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contracts/tests/curve_staking.prod.sol
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pragma solidity ^0.6.0;
interface TokenInterface {
function approve(address, uint256) external;
function transfer(address, uint) external;
function transferFrom(address, address, uint) external;
function deposit() external payable;
function withdraw(uint) external;
function balanceOf(address) external view returns (uint);
function decimals() external view returns (uint);
}
interface MemoryInterface {
function getUint(uint id) external returns (uint num);
function setUint(uint id, uint val) external;
}
interface EventInterface {
function emitEvent(uint connectorType, uint connectorID, bytes32 eventCode, bytes calldata eventData) external;
}
contract Stores {
/**
* @dev Return memory variable address
*/
function getMemoryAddr() internal pure returns (address) {
return 0x8a5419CfC711B2343c17a6ABf4B2bAFaBb06957F; // InstaMemory Address
}
/**
* @dev Return InstaEvent Address.
*/
function getEventAddr() internal pure returns (address) {
return 0x2af7ea6Cb911035f3eb1ED895Cb6692C39ecbA97; // InstaEvent Address
}
/**
* @dev Get Uint value from InstaMemory Contract.
*/
function getUint(uint getId, uint val) internal returns (uint returnVal) {
returnVal = getId == 0 ? val : MemoryInterface(getMemoryAddr()).getUint(getId);
}
/**
* @dev Set Uint value in InstaMemory Contract.
*/
function setUint(uint setId, uint val) virtual internal {
if (setId != 0) MemoryInterface(getMemoryAddr()).setUint(setId, val);
}
/**
* @dev emit event on event contract
*/
function emitEvent(bytes32 eventCode, bytes memory eventData) virtual internal {
(uint model, uint id) = connectorID();
EventInterface(getEventAddr()).emitEvent(model, id, eventCode, eventData);
}
/**
* @dev Connector Details - needs to be changed before deployment
*/
function connectorID() public view returns(uint model, uint id) {
(model, id) = (1, 39);
}
}
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
contract DSMath {
uint constant WAD = 10 ** 18;
uint constant RAY = 10 ** 27;
function add(uint x, uint y) internal pure returns (uint z) {
z = SafeMath.add(x, y);
}
function sub(uint x, uint y) internal virtual pure returns (uint z) {
z = SafeMath.sub(x, y);
}
function mul(uint x, uint y) internal pure returns (uint z) {
z = SafeMath.mul(x, y);
}
function div(uint x, uint y) internal pure returns (uint z) {
z = SafeMath.div(x, y);
}
function wmul(uint x, uint y) internal pure returns (uint z) {
z = SafeMath.add(SafeMath.mul(x, y), WAD / 2) / WAD;
}
function wdiv(uint x, uint y) internal pure returns (uint z) {
z = SafeMath.add(SafeMath.mul(x, WAD), y / 2) / y;
}
function rdiv(uint x, uint y) internal pure returns (uint z) {
z = SafeMath.add(SafeMath.mul(x, RAY), y / 2) / y;
}
function rmul(uint x, uint y) internal pure returns (uint z) {
z = SafeMath.add(SafeMath.mul(x, y), RAY / 2) / RAY;
}
}
interface ICurve {
function claim(address addr) external;
}
contract CurveVestingHelpers is Stores, DSMath {
/**
* @dev Return Curve Token Address
*/
function getCurveTokenAddr() internal pure returns (address) {
return 0xD533a949740bb3306d119CC777fa900bA034cd52;
}
/**
* @dev Return Curve Vesting Address
*/
function getCurveVestingAddr() internal pure returns (address) {
return 0x575CCD8e2D300e2377B43478339E364000318E2c;
}
}
contract CurveVestingProtocol is CurveVestingHelpers {
event LogClaim(address account, uint256 claimAmount, uint256 getId, uint256 setId);
/**
* @dev Claim Curve DAO Token.
* @param getId Get token amount at this ID from `InstaMemory` Contract.
* @param setId Set token amount at this ID in `InstaMemory` Contract.
*/
function claim(uint getId, uint setId) external{
TokenInterface curveTokenContract = TokenInterface(getCurveTokenAddr());
uint initialCurveBal = curveTokenContract.balanceOf(address(this));
ICurve(getCurveVestingAddr()).claim(address(this));
uint finalCurveBal = curveTokenContract.balanceOf(address(this));
uint claimedAmt = sub(finalCurveBal, initialCurveBal);
setUint(setId, claimedAmt);
emit LogClaim(address(this), claimedAmt, getId, setId);
bytes32 _eventCode = keccak256("LogClaim(address,uint256,uint256,uint256)");
bytes memory _eventParam = abi.encode(address(this), claimedAmt, getId, setId);
emitEvent(_eventCode, _eventParam);
}
}
contract ConnectCurveVesting is CurveVestingProtocol {
string public name = "Curve-vesting-v1";
}