From: Jason Voegele <jason@...>
Date: 2005-09-23T09:48:01+09:00
Subject: Re: Switching code in or out.

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On Thursday 22 September 2005 8:18, John Carter wrote:
> Can anyone think of a convenient way of taking a class like....
>
> class MyHairyClass
>    def invariant
>      raise "Invariant Failure: Bah" unless
>         deep_expensive_check_on_the_invariants_of_the_class
>    end
>
>    def my_public_method( foo)
>      invariant
>      raise "Precondition failure: Blah" unless
>        some_expression_involving_foo
>
>      # DO STUFF
>
>      raise "Postcondtion failure: Bloo" unless
>        some_expression
>      invariant
>    end
>
> end

Have you looked at the Ruby DbC package?  It is not very robust solution, b=
ut=20
it is simple and sounds like it might suit your needs:

 http://www.rubycentral.com/downloads/dbc.html

=2D-=20
Jason Voegele
The little town that time forgot,
Where all the women are strong,
The men are good-looking,
And the children above-average.
  -- Prairie Home Companion

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