Ruby Scoping Bug?

warren — Wed, 28 Jan 2009 19:18:48 +0000

class Foo
  def title
    "Oh hai."
  end

  def buggy
    puts title

    if false
      title = 'Oh noes!'
    end

    puts title
  end
end

Foo.new.buggy

This code outputs:

Oh hai.
nil

Isn’t it odd that the variable being created in an if-false block is still being created and set to nil? Hopefully this is fixed in Ruby 1.9.

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Ruby Scoping Bug?