solidity/test/compilationTests/zeppelin/ownership/HasNoTokens.sol
2018-08-01 21:57:12 +02:00

35 lines
1.1 KiB
Solidity

pragma solidity ^0.4.11;
import "./Ownable.sol";
import "../token/ERC20Basic.sol";
/**
* @title Contracts that should not own Tokens
* @author Remco Bloemen <remco@2π.com>
* @dev This blocks incoming ERC23 tokens to prevent accidental loss of tokens.
* Should tokens (any ERC20Basic compatible) end up in the contract, it allows the
* owner to reclaim the tokens.
*/
contract HasNoTokens is Ownable {
/**
* @dev Reject all ERC23 compatible tokens
* @param from_ address The address that is transferring the tokens
* @param value_ uint256 the amount of the specified token
* @param data_ Bytes The data passed from the caller.
*/
function tokenFallback(address from_, uint256 value_, bytes data_) external {
revert();
}
/**
* @dev Reclaim all ERC20Basic compatible tokens
* @param tokenAddr address The address of the token contract
*/
function reclaimToken(address tokenAddr) external onlyOwner {
ERC20Basic tokenInst = ERC20Basic(tokenAddr);
uint256 balance = tokenInst.balanceOf(address(this));
tokenInst.transfer(owner, balance);
}
}