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Re: Method that mutates object

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Jeremy Bopp wrote in post #1001249:
> On 5/26/2011 08:56, jay s. wrote:
>> Say we wanted to write our own replace method and not use the replace
>> method provided by the String class?  So we want to write a method that
>> takes a string object and modifies/mutates that same object and then
>> returns it, without creating a copy of that object.
>
> What exactly are you trying to accomplish?  The String class provides
> multiple methods to mutate the String instance in various ways, and many
> of those methods could be specified in terms of the others, including
> replace.  Rather than ask someone to figure out another solution to
> which you may respond, "and how do we write our own method_x and not use
> the method_x provided by the String class," could you provide some
> details about your goals?  What kind of modifications on the String
> instance do you want your method to perform?  What methods provided by
> the String class are out of bounds (as replace apparently is)?
>
> To me this is sounding a bit like a homework assignment, but maybe it's
> not.  In any case, the documentation for the String class is actually
> pretty good, so you can probably answer your own question with a little
> easy reading:
>
> http://rdoc.info/stdlib/core/1.9.2/String
>
> If I understand what you're really trying to accomplish, the method you
> want is definitely listed there.
>
> -Jeremy


Just for clarification, this is by no means a homework assignment.  I am 
new to Ruby and I'm trying to get a better grasp on how Ruby handles 
mutation.  I actually think at this point I'll try looking at Ruby's 
source code and see how String#replace is implemented.  Maybe I'm just 
over complicating my question.

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

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Thread

Method that mutates object jason solomon <solomon.jas@gmail.com> - 2011-05-25 14:22 -0500
  Re: Method that mutates object Stefano Crocco <stefano.crocco@alice.it> - 2011-05-25 14:28 -0500
    Re: Method that mutates object jason solomon <solomon.jas@gmail.com> - 2011-05-25 15:52 -0500
  Re: Method that mutates object Adam Prescott <adam@aprescott.com> - 2011-05-25 14:31 -0500
  Re: Method that mutates object Quintus <sutniuq@gmx.net> - 2011-05-25 15:45 -0500
    Re: Method that mutates object jason solomon <solomon.jas@gmail.com> - 2011-05-25 16:03 -0500
  Re: Method that mutates object jason solomon <solomon.jas@gmail.com> - 2011-05-25 15:59 -0500
    Re: Method that mutates object Brian Candler <b.candler@pobox.com> - 2011-05-25 16:20 -0500
  Re: Method that mutates object "jay s." <solomon.jas@gmail.com> - 2011-05-25 16:36 -0500
    Re: Method that mutates object 7stud -- <bbxx789_05ss@yahoo.com> - 2011-05-25 17:00 -0500
  Re: Method that mutates object "jay s." <solomon.jas@gmail.com> - 2011-05-26 08:56 -0500
    Re: Method that mutates object Jeremy Bopp <jeremy@bopp.net> - 2011-05-26 09:43 -0500
      Re: Method that mutates object "jay s." <solomon.jas@gmail.com> - 2011-05-26 10:00 -0500
        Re: Method that mutates object Josh Cheek <josh.cheek@gmail.com> - 2011-05-26 13:12 -0500
  Re: Method that mutates object "jay s." <solomon.jas@gmail.com> - 2011-05-26 10:55 -0500
  Re: Method that mutates object "jay s." <solomon.jas@gmail.com> - 2011-05-26 11:07 -0500
    Re: Method that mutates object Jeremy Bopp <jeremy@bopp.net> - 2011-05-26 11:14 -0500
      Re: Method that mutates object "jay s." <solomon.jas@gmail.com> - 2011-05-26 11:30 -0500
    Re: Method that mutates object Gary Wright <gwtmp01@mac.com> - 2011-05-26 16:34 -0500
      Re: Method that mutates object Adam Prescott <adam@aprescott.com> - 2011-05-27 10:57 -0500
      Re: Method that mutates object Christopher Dicely <cmdicely@gmail.com> - 2011-05-28 13:05 -0500
        Re: Method that mutates object Gary Wright <gwtmp01@mac.com> - 2011-05-28 19:29 -0500
          Re: Method that mutates object Gary Wright <gwtmp01@mac.com> - 2011-05-28 21:06 -0500

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