meh. when i'm looking for a bug, i tend to start in the places with lots of branching. in general, high quality code doesn't have much branching, and if you fin

meh. when i'm looking for a bug, i tend to start in the places with lots of branching. in general, high quality code doesn't have much branching, and if you find yourself neding complicated and nested branching, there is probably a better way to factor your code. one easy trick is to structure your code such that 'null' is impossible, by initializing to an empty value, or re-ordering the way things happen, or using exceptions or error-monad.