Change the binding of a Proc in Ruby

Question

I have this code:

 l = lambda { a }
 def some_function
     a = 1
 end

I just want to access a by the lambda and a special sco

Answer 1

Perhaps you don't actually need to define a later, but instead only need to set it later.

Or (as below), perhaps you don't actually need a to be a local variable (which itself references an array). Instead, perhaps you can usefully employ a class variable, such as @@a. This works for me, by printing "1":

class SomeClass
  def l
    @l ||= lambda { puts @@a }
  end

  def some_function
    @@a = 1
    l.call
  end
end
SomeClass.new.some_function