[#796] Re: value of assignment (Re: Order of the value of an expression changed? (PR#579)) — Sean Chittenden <sean@...>
> sean@chittenden.org wrote:
Hi,
> |I have read the thread and I think this is a pretty bad change. I
Hi,
> > #BEGIN test.rb
Hi,
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Hi,
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Hi,
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Hi,
what about if attr_accessor :foo defined three methods - #foo, #foo=, and
> |What was wrong with having the receiver set the return value though?
Sean Chittenden <sean@chittenden.org> writes:
> > f = Foo.new()
>>>>> "J" == J Herre <jlst@gettysgroup.com> writes:
On 11 Feb 2003 at 11:13, Sean Chittenden wrote:
[#801] class of $1, $2 in 1.8.0 — dblack@...
Hi --
Hi,
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Hi,
Hi --
J.Herre <jlst@gettysgroup.com> writes:
Hi --
On Sat, 8 Feb 2003 06:52:17 +0900
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On Friday, February 7, 2003, at 03:15 PM, dblack@candle.superlink.net
[#851] Alternate GC ? — Mathieu Bouchard <matju@...>
[#875] OpenSSL for Ruby 0.2.0-pre0 — Michal Rokos <michal@...>
Hi everybody!
[#889] Bob Jenkins' hashing implementation in Ruby — Mauricio Fern疣dez <batsman.geo@...>
>>>>> "M" == Mauricio Fern疣dez <Mauricio> writes:
On Sat, Mar 01, 2003 at 08:42:40PM +0900, ts wrote:
>>>>> "M" == Mauricio Fern疣dez <Mauricio> writes:
On Sat, Mar 01, 2003 at 10:03:47PM +0900, ts wrote:
>>>>> "M" == Mauricio Fern疣dez <Mauricio> writes:
On Sat, Mar 01, 2003 at 10:10:35PM +0900, ts wrote:
Hi,
[#890] String and (repost) MemLeak — Michal Rokos <michal@...>
Hi,
Hi,
Hi,
Hi,
Hi,
Re: class of $1, $2 in 1.8.0
Hi --
On Sat, 8 Feb 2003, J.Herre wrote:
> It make sense that String#scan, String#slice, String#dup all return
> various parts of
> the given string. Would it make sense for SpecializeString#dup to
> return a
> String? Shouldn't #slice, #split and #scan do the same thing?
>
> Why not assume that a substring of a string is the same kind of string?
> What's
> the advantage of the old behavior?
Even if the new class is specialized, substrings of it may not be
similarly specialized -- in which case, it's misleading to have them
be instances of the new class. For example:
class Name < String
def initial
scan(/[A-Z]/)[0]
end
end
n = Name.new("David")
i = n.initial # String in 1.6.8, Name in 1.8.0
Here, it doesn't seem logical (to me) for an initial to be a Name
object. (Yes, I could have done self[0].chr, but I need to illustrate
this :-)
I don't think having the initial be a String is a demotion in a case
like this. It's just coincidence that the superclass of self's class
happens to be the same as the class of objects returned by #scan. If
you had:
class Title < String
def separator
" "
end
end
you wouldn't expect " " to be a Title object. Similarly (I would
argue), the substring "D" is just a string, even though it happens to
come from an operation on a Name object.
David
--
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web: http://pirate.shu.edu/~blackdav