From: James Gray <james@...>
Date: 2008-01-09T23:13:48+09:00
Subject: Re: struct equivalent with rails-y keyword args hash?

On Jan 8, 2008, at 11:02 PM, Giles Bowkett wrote:

> I have some code which uses Structs. I'd rather use keyword args. I'm
> generating data objects to store MIDI note data, and it's kind of
> hideously unreadable:
>
> Note.new(2, 43, 0.25, 127, now += interval)
>
> This would be much nicer:
>
> Note.new(:channel => 2,
>         :note => 43,
>         :duration => 0.25,
>         :velocity => 127,
>         :time => now += interval)

One way is:

require "ostruct"

now      = Time.now
interval = 5
note     = OpenStruct.new( :channel  => 2,
                            :note     => 43,
                            :duration => 0.25,
                            :velocity => 127,
                            :time     => now + interval )
note.channel   # => 2
note.velocity  # => 127

__END__

James Edward Gray II