Well I don't literally mean finished as in you haven't finished typing it. Although that's possible too - whitespace languages like Python tend to just work sin

Well I don't literally mean finished as in you haven't finished typing it. Although that's possible too - whitespace languages like Python tend to just work since they don't have end brackets, I suppose. But you could have a compiled language where errors were limited to the function when possible, like by emitting asserts.