ethers-rs/ethers-middleware/tests/solidity-contracts/SimpleStorage.sol

16 lines
401 B
Solidity
Raw Normal View History

pragma solidity >=0.4.24;
contract SimpleStorage {
event ValueChanged(address indexed author, address indexed oldAuthor, uint256 oldValue, uint256 newValue);
address public lastSender;
uint256 public value;
function setValue(uint256 _value) public {
emit ValueChanged(msg.sender, lastSender, value, _value);
value = _value;
lastSender = msg.sender;
}
}