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Re: What do you do when you need to attach data to an object instance?

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From Kevin Mahler <kevin.mahler@yahoo.com>
Newsgroups comp.lang.ruby
Subject Re: What do you do when you need to attach data to an object instance?
Date Sat, 16 Apr 2011 12:53:31 -0500
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7stud
>> Because module_eval and class_eval are aliases, class_eval can be
>> called on a module, a situation which is at worst wrong
>
>It certainly isn't "wrong"--ruby allows it.

Wrong is not synonymous with illegal. One could easily argue that the
alias is a mistake. class_eval, as the name suggests, should have been
a more restricted version of module_eval. Allowing class_eval to have
a module receiver is wrong because a module is not a class. I
presented this as the "at worst" case--one end of the spectrum.

>> and at best
>> confusing. module_eval can never be wrong or confusing. Not a hard
>> choice.
>
>I thought using module_eval was confusing in your code, and that was why
>I suggested class_eval().

A class is a module.

-- 
Posted via http://www.ruby-forum.com/.

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Thread

What do you do when you need to attach data to an object instance? "Aaron D. Gifford" <astounding@gmail.com> - 2011-04-14 14:47 -0500
  Re: What do you do when you need to attach data to an object instance? Kevin Mahler <kevin.mahler@yahoo.com> - 2011-04-14 16:11 -0500
    Re: What do you do when you need to attach data to an object instance? "Aaron D. Gifford" <astounding@gmail.com> - 2011-04-14 17:33 -0500
      Re: What do you do when you need to attach data to an object instance? "Aaron D. Gifford" <astounding@gmail.com> - 2011-04-14 18:45 -0500
        Re: What do you do when you need to attach data to an object instance? 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-14 19:50 -0500
        Re: What do you do when you need to attach data to an object instance? Kevin Mahler <kevin.mahler@yahoo.com> - 2011-04-14 20:07 -0500
          Re: What do you do when you need to attach data to an object instance? "Aaron D. Gifford" <astounding@gmail.com> - 2011-04-15 01:35 -0500
            Re: What do you do when you need to attach data to an object instance? Robert Klemme <shortcutter@googlemail.com> - 2011-04-15 03:46 -0500
              Re: What do you do when you need to attach data to an object instance? 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-15 13:40 -0500
                Re: What do you do when you need to attach data to an object   instance? Robert Klemme <shortcutter@googlemail.com> - 2011-04-15 21:00 +0200
          Re: What do you do when you need to attach data to an object instance? 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-15 18:10 -0500
            Re: What do you do when you need to attach data to an object instance? Kevin Mahler <kevin.mahler@yahoo.com> - 2011-04-16 10:32 -0500
              Re: What do you do when you need to attach data to an object instance? 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-16 12:14 -0500
                Re: What do you do when you need to attach data to an object instance? Kevin Mahler <kevin.mahler@yahoo.com> - 2011-04-16 12:53 -0500
                Re: What do you do when you need to attach data to an object instance? Adam Prescott <adam@aprescott.com> - 2011-04-18 07:10 -0500
  Re: What do you do when you need to attach data to an object instance? 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-14 18:15 -0500
  Re: What do you do when you need to attach data to an object instance? 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-14 19:01 -0500

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