[#1649] Re: New Ruby projects — Yukihiro Matsumoto <matz@...>
The following message is a courtesy copy of an article
[#1672] Re: Ruby 1.4 stable manual bug? — Yukihiro Matsumoto <matz@...>
The following message is a courtesy copy of an article
[#1673] Re: Possible problem with ext/socket in 1.5.2 — itojun@...
[#1694] Conventions for our Ruby book — Dave Thomas <Dave@...>
[#1715] Install postgresql support — Ikhlasul Amal <amal@...>
Hi all,
Hi,
[#1786] Is this a bug? — Clemens Hintze <clemens.hintze@...>
(mailed & posted)
[#1814] Objects nested sometimes. — Hugh Sasse Staff Elec Eng <hgs@...>
I am attemptiong to write a package which consists of a workspace
[#1816] Ruby 1.5.3 under Tru64 (Alpha)? — Clemens Hintze <clemens.hintze@...>
Hi all,
Hi,
Yukihiro Matsumoto writes:
Hi,
Hi,
[#1834] enum examples? — Hugh Sasse Staff Elec Eng <hgs@...>
Has anyone any examplse of using the Enumerable module? I've had a
[#1844] Minor irritation, can't figure out how to patch it though! — Hugh Sasse Staff Elec Eng <hgs@...>
I was considering how difficult it would be to patch Ruby to accept
[#1889] [ruby-1.5.3] require / SAFE — ts <decoux@...>
[#1896] Ruby Syntax similar to other languages? — "David Douthitt" <DDouthitt@...>
[#1900] Enumerations and all that. — Hugh Sasse Staff Elec Eng <hgs@...>
Thank you to the people who responded to my questions about Enumerated
Hugh Sasse Staff Elec Eng <hgs@dmu.ac.uk> writes:
On 16 Mar 2000, Dave Thomas wrote:
[#1929] Re: Class Variables — "David Douthitt" <DDouthitt@...>
| "David Douthitt" <DDouthitt@cuna.com> writes:
[#1942] no Fixnum#new ? — Quinn Dunkan <quinn@...>
Ok, I can add methods to a built-in class well enough (yes I know about succ,
[#1981] Time::at — "David Douthitt" <DDouthitt@...>
or whatever the right syntax is :-)
[#1989] English Ruby/Gtk Tutorial? — schneik@...
Hi,
SugHimsi(%HeIsSaidJustToLoseHisPatienceOnThisSubject;-).
[#2022] rb_global_entry — ts <decoux@...>
[#2036] Anonymous and Singleton Classes — B_DAVISON <Bob.Davison@...>
I am a Ruby newbie and having some problems getting my mind around certain
[#2069] Ruby/GTK+ question about imlib --> gdk-pixbug — schneik@...
[#2073] Re: eval.rb fails — "Dat Nguyen" <thucdat@...>
The doc is fine, this happens only if you try to execute 'until' block
On Wed, 22 Mar 2000, Dat Nguyen wrote:
[#2084] Scope violated by import via 'require'? — Clemens Hintze <c.hintze@...>
Hi,
[#2104] ARGF or $< — Hugh Sasse Staff Elec Eng <hgs@...>
Has anyone any examples of how to use ARGF or $< as I cannot find much
Hi.
[#2165] Ruby strict mode and stand-alone executables. — "Conrad Schneiker" <schneiker@...>
Some people want Ruby to have a strict compile mode.
[#2203] Re: parse bug in 1.5 — schneik@...
[#2212] Re: Ruby/Glade usage questions. — ts <decoux@...>
>>>>> "m" == mrilu <mrilu@ale.cx> writes:
[#2241] setter() for local variables — ts <decoux@...>
[#2256] Multiple assignment of pattern match results. — schneik@...
[#2267] Re: Ruby and Eiffel — h.fulton@...
[#2309] Question about attribute writers — Dave Thomas <Dave@...>
[ruby-talk:02036] Anonymous and Singleton Classes
I am a Ruby newbie and having some problems getting my mind around certain
aspects of classes, especially anonymous classes and singleton classes.
I composed a nice long mail to you all then realised that I should check the
mail archive first and found the February thread "Singleton Classes". Now I am
even more confused!
I had just decided that class << obj; ...; end didn't actually create an
anonymous class (even though FAQ 6.6 says it does) and then matz says that it
does.
<code>
class C1
def to_s
">>> C1.to_s"
end
end
def C1.inherited(subclass)
print ">>> inherited ", subclass, "\n" # never called
end
obj = C1.new
class << obj
def to_s
super + " => C2.to_s"
end
end
print obj, "\n" # >>> C1.to_s => C2.to_s
print obj.type, "\n" # hmm, still says C1
print obj.type.id == C1.id, "\n" # true, it really is C1
</code>
Well it looks like it does when it comes to calling super() as C1.to_s gets
called. But obj.type is unchanged and Class.inherited() doesn't get called. So
what is going on?
Actually Class.inherited() doesn't seem to get called when subclassing with
Class.new() either. Is this a bug?
ruby -v
ruby 1.4.3 (1999-12-08) [i686-cygwin]
<code>
class C1
end
def C1.inherited(subclass)
print ">>> inherited ", subclass, "\n"
end
class C3 < Class.new(C1)
end
print C3.ancestors.join(", "), "\n"
</code>
outputs:
>>> new subclass C3
C3, #<Class 0lx1208af08>, C1, Object, Kernel
Thanks,
Bob
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