Caller-specific coverage

I ve had an idea rattling around to get more detail from coverage measurement. Can we measure the coverage in a function separately for each caller of the function? Here s why I want it: in Acidica , my toy BASIC interpreter, I had code to implement the built-in functions that looked something like this: match &#xA0; func_name : &#xA0;&#xA0;&#xA0;&#xA0; case &#xA0; "LEN" :…