Same class, different module

ruby-talk
1

Here's a small snippet of code I'm trying to hack on:

module Mod1
  class A
    def meth
      puts "in Mod 1"
    end
  end

  class B
    def initialize
      A.new.meth
    end
  end
end

module Mod2
  class A < Mod1::A
    def meth
      put "in Mod 2"
    end
  end

  class B < Mod1::B
  end
end

p Mod1::B.new
p Mod2::B.new

caleb@tcdevel ~ $ ruby testit.rb
in Mod 1
#<Mod1::b:0xb7c888dc>
in Mod 1
#<Mod2::b:0xb7c88508>

What I'm trying to accomplish is having B reference A but in the same module
its currently in. I can accomplish this by redefining the initialize method
again in Mod2::B, such that it looks exactly the same as Mod1::B, but I'm
hoping to find a trick to avoid having to do that.

Any thoughts?

Caleb

2

Caleb Tennis wrote:

Here's a small snippet of code I'm trying to hack on:

<snip due to ruby-forum.com quote limit />

What I'm trying to accomplish is having B reference A but in the same
module
its currently in. I can accomplish this by redefining the initialize
method
again in Mod2::B, such that it looks exactly the same as Mod1::B, but
I'm
hoping to find a trick to avoid having to do that.

Any thoughts?

You could use #const_get, possibly, since a method call is dynamic.

Caleb

E

···

--
Posted via http://www.ruby-forum.com/\.

3

module M1
  class A; def foo; "foo"; end; end
end

module M2
  A = M1::A
  class A; def bar; "bar"; end; end
end

a = M2::A

a.foo #=> "foo"
a.bar #=> "bar"

Is that what you meant?

However, note that:

M2::A == M1::A

"Caleb Tennis" <caleb@aei-tech.com> wrote in message
news:200512141601.46013.caleb@aei-tech.com...

···

Here's a small snippet of code I'm trying to hack on:

module Mod1
class A
   def meth
     puts "in Mod 1"
   end
end

class B
   def initialize
     A.new.meth
   end
end
end

module Mod2
class A < Mod1::A
   def meth
     put "in Mod 2"
   end
end

class B < Mod1::B
end
end

p Mod1::B.new
p Mod2::B.new

caleb@tcdevel ~ $ ruby testit.rb
in Mod 1
#<Mod1::b:0xb7c888dc>
in Mod 1
#<Mod2::b:0xb7c88508>

What I'm trying to accomplish is having B reference A but in the same
module
its currently in. I can accomplish this by redefining the initialize
method
again in Mod2::B, such that it looks exactly the same as Mod1::B, but I'm
hoping to find a trick to avoid having to do that.

Any thoughts?

Caleb