ParserError: Expected token Comma got 'SubEther'

Question

I am having trouble with this parse error when I compile the abi. I want to be able to add the argument that gets passed into the function to the workdone. However when I try to do that I get a parse error. If I hardcode in a number then it compiles without issue. Any help?

doesn't compile

function test1(address addr1, uint8 num) nonReentrant external {
    for (uint8 i = 0; i < num; i++) {
       //do the thing
    }        
    workDone[msg.sender] = workDone[msg.sender].add(uint256(num ether));
}

compiles fine

function test1(address addr1) nonReentrant external {
    for (uint8 i = 0; i < 10; i++) {
       //do the thing
    }        
    workDone[msg.sender] = workDone[msg.sender].add(uint256(10 ether));
}

Answer 1

I believe that units like ether can only be used with integer literals at compile time. Just multiply by 10^18 instead:

workDone[msg.sender].add(num * 10**18);