Files
openzeppelin-contracts/contracts/GSN/GSNRecipient.sol
2019-08-15 19:33:41 -03:00

29 lines
988 B
Solidity

pragma solidity ^0.5.0;
import "./IRelayRecipient.sol";
import "./GSNContext.sol";
import "./bouncers/GSNBouncerBase.sol";
import "./IRelayHub.sol";
/*
* @dev Base GSN recipient contract, adding the recipient interface and enabling
* GSN support. Not all interface methods are implemented, derived contracts
* must do so themselves.
*/
contract GSNRecipient is IRelayRecipient, GSNContext, GSNBouncerBase {
function getHubAddr() public view returns (address) {
return _relayHub;
}
// This function is view for future-proofing, it may require reading from
// storage in the future.
function relayHubVersion() public view returns (string memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return "1.0.0";
}
function _withdrawDeposits(uint256 amount, address payable payee) internal {
IRelayHub(_relayHub).withdraw(amount, payee);
}
}