From: Brian Candler <lists@...>
Date: 2012-12-12T21:13:31+09:00
Subject: Re: How I can create/extract a variable/hash into the current binding in Ruby?

A simpler test case:

def foo(b)
  b.eval "a = 1"
end

b = binding
foo(b)

puts a           # NameError: undefined local variable or method 'a'
b.eval "puts a"  # this is fine
puts local_variables     # shows both a and b

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