Fix bug #9155. Problem with delegate class.

[smathieu]

Problem was that a simple class like:

class X < DelegateClass(Integer)
  def initialize(value)
    value = Integer(value)
    super(value)
  end
end

would fail because Integer would call method_missing of SimpleDelegate, but that would raise an exception since the object to delegate to is not yet set (it will be when super is called).

/cc @nobu

[marcandre]

What exactly is the issue? The given code works without the patch, no?

[smathieu]

Without the fix, the following exception is raised:

 1) Error:
TestDelegateClass#test_use_delegated_method_in_constuctor:
ArgumentError: not delegated
    /Users/simon/Documents/rainforest/ruby/lib/delegate.rb:384:in `__getobj__'
    /Users/simon/Documents/rainforest/ruby/lib/delegate.rb:77:in `method_missing'
    test/test_delegate.rb:174:in `initialize'
    test/test_delegate.rb:180:in `new'
    test/test_delegate.rb:180:in `test_use_delegated_method_in_constuctor'

[ukd1]

@marcandre this only affects 2.1 preview 2 and up.

[hsbt]

ref http://bugs.ruby-lang.org/issues/9155

[ukd1]

Nobu resolved this with changeset r43984.

[marcandre]

👍

[hsbt]

@smathieu @ukd1 Thank you for your report!

[ukd1]

@hsbt / @marcandre no problem. The code @smathieu wrote didn't get used; is there a guide to writing these in the correct style? Should they be sent to another place except github? We'll probably end up finding more things and would like to keep helping out, but would like to understand how to better!

Russ