CODEWITHSUNDEEP
rubyclassinstance-variables
Lokua
Lokua

Reputation: 576

Determining name of variable referencing new instance inside initialize

I can have a class announce its name whenever an instance is created like:

class Klass
    def initialize
        puts "#{self.class} instance created"
    end
end

instance = Klass.new #=> Klass intance created

How can I have the instance name announced from the class initializer? something like:

class Klass
    def initialize
        puts "#{self.class} instance #{self.instance} created"
    end
end

jacksaw = Klass.new #=> Klass instance "jacksaw" created

Upvotes: 1

Views: 53

Answers (1)

sawa
sawa

Reputation: 168269

It is impossible. First, Klass.new will be created. Then, a local variable jacksaw will be assigned to it. At the moment of the creation of the instance, it cannot tell what local variable it will be assigned to.

Upvotes: 4

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