#init & #initialize

17 May 2008

      In the RubyCocoa layer I would like to have #initialize called from  
#init,
because in RC it was allowed to use #initialize and thus many classes  
do this.

Anyways, here's some test code, please note the comments and the  
output which are basically my questions :)

Cheers,
Eloy

#!/usr/local/bin/macruby

class Foo
   def init
     if super
       puts 'Foo init'
       self
     end
   end

   def initialize
     puts 'Object'
   end
end

class Bar < NSObject
   def init
     if super
       puts 'Bar init'
       self
     end
   end

   def initialize
     puts 'NSObject'
   end
end

# Calls only initialize which is a good thing because it's a "Object"  
subclass.
Foo.new
# => Object

# Calling new on a NSObject subclass calls initialize, but NOT init!!!??
Bar.new
# => NSObject

# Calls only init and NO initialize
Bar.alloc.init
# => Bar init

# Add behaviour to have initialize called from init
class NSObject
   # Note: Should I somehow alias the original NSObject#init?
   # Trying to alias it results in a NoMethodError.
   def init
     initialize
     self
   end
end

# Calls init and then initialize.
Bar.alloc.init
# => NObject
# => Bar init

Eloy Duran

Laurent Sansonetti

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