http://d.puremagic.com/issues/show_bug.cgi?id=8803
--- Comment #5 from Peter Alexander <peter.alexander...@gmail.com> 2012-10-16 14:31:13 PDT --- (In reply to comment #4) > The problem is that the delegate get executed an impredictable number of time. > Which make side effect extremely hard to handle (I ended up using > map.array.filter most of the time in my own codebase) in terms of side-effect > or performance. > > Additionally, the problem is dependent of the inner implementation of both map > and filter, which should stay unknown for the user. I think the real problem here is that your mapping function has side effects. The undocumented intention of map is that the mapping function is pure. Using it to produce side-effects on the function call is not the intended use of map (just like having side effects in the comparison function in a sort would be a bad idea). Other than the incorrect documentation, I don't think there is a bug here. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------