wip: forge script warns when calling eoa

[markus0x1]

Motivation

Deployment scripts do not verify the existence of a contract before invoking its functions.
This can lead to challenges in determining the success or failure of a deployment script, as every call to an call to an externally owned accounts (EOAs) return a success flag,

For example, the script below will not issue an error when getting deployed and decodes the setNum calls as if they were regular function calls.

contract C {
   function setNum(uint256 _num) public returns (uint256){
       num = _num;
   }
}
contract Deploy is Script {
   function run() external {
       C c = new C(); // contract is not deployed!
       vm.startBroadcast( );
       require(c.setNum(1) == 1, "setNum failed");
   }
}

Solution

Issue a warning when calling a address with available abi and no code deployed.