Dave Thomas
1/25/2008 7:32:00 PM
On Jan 25, 2008, at 1:24 PM, Xeno Campanoli wrote:
> I may have brought this up before, a long time ago, but something I
> want
> is a prefix, like @ and @@, for constants that designates them as
> object
> or class constants respectively. That way I could make a lot of
> things
> constants that I am now just making variables and it would be obvious
> that they are constants only available for that context. I really
> don't
> like the underscore perfectly, but I've thought about it and it
> seems to
> be the best choice of available characters. Has anybody every thought
> about this (barring my possibly bringing it up two years ago), and
> does
> anyone else think this is a reasonable suggestion? If so, I would
> think
> it would be a small change that could be implemented in parallel with
> existing prefix syntax handling.
I'm not sure I've ever bumped into the need for an object constant,
but if I had, I'd probably have simply implemented an instance method
class Dave
def initialize(new_pi)
@pi = new_pi
end
def PI
@pi
end
end
d1 = Dave.new(3)
d2 = Dave.new(3.14159)
d3 = Dave.new(22.0/7.0)
puts d1.PI, d2.PI, d3.PI
Dave