Ruby - Can an object access or identify the object which instantiated it?

Question

For example, how could I implement the following:

class A
  def initialize
    b = B.new
  end
end

class B
  def initialize
   puts #how can I find out who instantiated me
  end
end

See here.

Linuxios
– Linuxios

2013-10-01 23:51:01 +00:00
Commented Oct 1, 2013 at 23:51 — Linuxios
– Linuxios, Commented Oct 1, 2013 at 23:51

sawa · Accepted Answer · 2013-10-01 23:34:30Z

3

class A
  def initialize
    B.new(self)
  end
end

class B
  def initialize initializer
    puts initializer
  end
end

A.new # => #<A:0x007fee78368dc8>

answered Oct 1, 2013 at 23:34

sawa

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2 Comments

Jason Over a year ago

Is there anyway for Class B to access it's "creator" object without self being explicitly passed?

sawa Over a year ago

Maybe you can play around with TracePoint. But I don't see any reason for doing that, and I would not do that.

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