ColinDKelley escreveu: > On Dec 27, 5:31 pm, Rodrigo Rosenfeld Rosas <[email protected]> > wrote: > >> Changing the subject a bit, I've just remembered a feature of Groovy's >> language that I like and think that Ruby lacks... >> >> In Groovy: >> >> result = object?.method?.another >> >> would mean in Ruby something like: >> >> result = object && object.method && object.method.another >> >> I wonder if it would be possible to have a similar constructor in Ruby >> that was more DRY like in Groovy. Groovy's syntax would not be an option >> to Ruby since Ruby's methods accept method names ending with '?', which >> is not possible in Groovy. That is a good think but I can't think in an >> expressive annotation to be added to Ruby... >> > > Rodrigo, > > Funny you should mention that! Hobo Support has the _? operator that > does just what you want. (They mention in the documentation that they > wanted it to be called ?, but had to go with ._? to be valid Ruby.) > We use _? extensively in our application and frankly couldn't live > without it. Here's a recent thread where I contributed a simplified > implementation of that method (inspired by ActiveRecord's > AssociationProxy BTW): > > https://hobo.lighthouseapp.com/projects/8324/tickets/537-safenil-with-nil-public-methods-as-in-_to_i > Hi Colin, thank you for mentioning that.
Matt Jones has already pointed out me this in a private message shortly after I sent this question. Are there any chances this could make into ActiveResource too so that we could benefit of using it in a vanilla Rails app? I hope all of you have a great new year! Best regards, Rodrigo. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" 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-core?hl=en.
