Should I add async/await to a single-line function or not?

Question

Should I add async/await to a single-line function like:

public async Task<T> GetFoo()
{
    return await HandleAsync<T>(....);
}

Or is this unneeded overhead if the parameter does not need an asynchron call and I can simple write:

public Task<T> GetFoo()
{
    return HandleAsync<T>(....);
}

Answer 1

Use second overload, because async methods are converted into astate machine behind the scenes (an extra class) to handle asynchronous operation with awaits.

So first method adds unnecessary overhead. Second overload simply returns a task that you can still await on.

Im not sure about how exception handling wold change here but i think it doesnt change.