Files
openzeppelin-contracts/contracts/LimitBalance.sol
2017-11-23 10:41:18 -03:00

32 lines
747 B
Solidity

pragma solidity ^0.4.18;
/**
* @title LimitBalance
* @dev Simple contract to limit the balance of child contract.
* @dev Note this doesn't prevent other contracts to send funds by using selfdestruct(address);
* @dev See: https://github.com/ConsenSys/smart-contract-best-practices#remember-that-ether-can-be-forcibly-sent-to-an-account
*/
contract LimitBalance {
uint256 public limit;
/**
* @dev Constructor that sets the passed value as a limit.
* @param _limit uint256 to represent the limit.
*/
function LimitBalance(uint256 _limit) public {
limit = _limit;
}
/**
* @dev Checks if limit was reached. Case true, it throws.
*/
modifier limitedPayable() {
require(this.balance <= limit);
_;
}
}