How to alias a class method

[Dmitry V. Sabanin]

Hi!

I've run into problem aliasing a class method, i.e.
I have:
class Abc
self.get_abc arg
...
end
end
And later I need to this method, with saving of
original implementation.
Following code is not working:
alias rig_get_abc, :get_abc

 

[ts]

D> Following code is not working:
D> alias rig_get_abc, :get_abc

you need to be in the singleton class to make the alias

svg% cat b.rb
#!/usr/bin/ruby
class Abc
def self.get_abc arg
puts "abc"
end
class << self
alias orig_get_abc get_abc
end
end

Abc.orig_get_abc(12)
svg%

svg% b.rb
abc
svg%



Guy Decoux

 

[Dmitry V. Sabanin]

you need to be in the singleton class to make the alias

svg% cat b.rb
#!/usr/bin/ruby
class Abc
def self.get_abc arg
puts "abc"
end
class << self
alias orig_get_abc get_abc
end
end

Abc.orig_get_abc(12)
svg%

svg% b.rb
abc
svg%

Guy Decoux

Very nice, thank you!