From: Logan Capaldo <logancapaldo@...>
Date: 2006-05-16T05:21:36+09:00
Subject: Re: Struct.new vs class


On May 15, 2006, at 8:43 AM, Mark Volkmann wrote:

> On 5/15/06, Logan Capaldo <logancapaldo@gmail.com> wrote:
>>
>> On May 15, 2006, at 2:44 AM, Giles Bowkett wrote:
>>
>> > OK, so I have this class and it could probably be a Struct.
>> >
>> > class Sample
>> >
>> >  # I should probably turn this whole class into a simple
>> > Struct.new(etc.) statement
>> >
>> >  attr :note_length, true
>> >  attr :track, true
>> >  attr :note, true
>> >  attr :channel, true
>> >  attr :threshold, true
>> >  attr :notes, true
>> >
>> >  def initialize(note_length, sequence, note, channel, threshold,
>> > notes)
>> >    @note_length = note_length
>> >
>> >    @track = Track.new(sequence)
>> >    @track.sequence.tracks << @track # butt
>> >
>> >    @note = note
>> >    @channel = channel
>> >    @threshold = threshold
>> >    @notes = notes
>> >  end
>> >
>> > end
>> >
>> >
>>
>> class Sample < Struct.new(:note_length, :sequence, :note, :channel,
>> etc.)
>>     def initialize
>>       super
>>       # blah
>>     end
>> end
>
> What is this supposed to do?  It doesn't seem to allow me to create a
> Sample object and pass parameters to new. I think the OP wanted that.
>
> --  
> R. Mark Volkmann
> Object Computing, Inc.
>

oops sorry. Whenever I answer questions like this, half the time I  
think the questioner is asking to be reminded of the idiom (because  
that's what usually happens to me), and I tend to leave stuff out.