On Oct 16, 5:44 pm, Mark Volkmann <r.mark.volkm...@gmail.com> wrote: > What's the rule of thumb for deciding whether a function name should > end with an exclamation point? I thought maybe it was when the > function modifies its first argument, but it seems there are functions > that do that and do not have such names. > > For example, set-validator! and add-watch. Why don't they either both > end with ! or both not do that.
add-watch doesn't really affect the object itself, while set- validator! certainly does, so I think the naming is consistent. I think it might be a good rule of thumb to add the ! if the operation either mutates the object (set!) or invalidates old values/references to it, like persistent! or set-validator!. However, even core.clj doesn't seem to follow this... The exceptions seem to be the "alter" operations for reference types; alter, commute, alter-var-root, and for some reason, ref-set. -- Jarkko > > -- > R. Mark Volkmann > Object Computing, Inc. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
