Re: getting the arity

< :the previous in number ^ :the list in numerical order > :the next in number P :the previous (in thread) N :the next artilce (have the same parent) |<:the top of this thread >|:the next thread ^ :the parent (reply-to) _:the child (an article replying to this) >:the elder article having the same parent <:the youger article having the same parent ---:split window and show thread lists | :split window (vertically) and show thread lists ~ :close the thread frame .:the index ..:the index of indices

Jeff Mitchell wrote: > I would like to get the arity of a method. However, arity is a method > of Method, and I can only get a Method from the method method of Object > (phew!). > > So it appears impossible to get the arity of a method in a class > without making an instance of that class. Is this true? Not in 1.8, where you can get an UnboundedMethod using instance_method: String.instance_method(:replace).arity #=> 1 String.instance_method(:gsub).arity #=> -1 -- (\[ Kent Dahl ]/)_ _~_ _____[ http://www.pvv.org/~kentda/ ]_____/~ ))\_student_/(( \__d L b__/ (pre-) Master of Science in Technology ) ( \__\_?|?_/__/ ) _)Industrial economics and technological management( \____/_?_\____/ (____engineering.discipline_=_Computer::Technology___)