Hi -- On Sun, 19 Jul 2009, Ease Bus wrote:
> Hi, > > I have a class that has an attribute named "an_attribute". I would like to > define the following > function > > def an_attribute=(new_value) > return false > end > > The problem is every time I call the function, the return value is always > "new_value" instead of > "false." Is there anyway for me to make it return "false"? Of course, the > above simplistic example > is only used to illustrate what I want to ask. I don't think there's any way. The = methods are engineered so as to provide assignment-like semantics, and assignments always return their right-hand side. You can circumvent this if you use send: >> def x=(*) >> "Explicit return value" >> end => nil >> self.x = 20 => 20 >> send(:x=, 20) => "Explicit return value" (Thanks to Rick DeNatale for reminding me of the send thing in a recent ruby-talk thread about this :-) But using send with a = method kind of defeats the purpose. David -- David A. Black / Ruby Power and Light, LLC Ruby/Rails consulting & training: http://www.rubypal.com Now available: The Well-Grounded Rubyist (http://manning.com/black2) Training! Intro to Ruby, with Black & Kastner, September 14-17 (More info: http://rubyurl.com/vmzN) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
