[#1378] differences between Module and Class ? — Mathieu Bouchard <matju@...>

25 messages 2003/08/11
[#1387] Re: differences between Module and Class ? — matz@... (Yukihiro Matsumoto) 2003/08/12

Hi,

[#1442] Re: differences between Module and Class ? — Mathieu Bouchard <matju@...> 2003/08/21

[#1406] _id2ref bug? — Ryan Pavlik <rpav@...>

While debugging some caching code, I've come across a segfault related

22 messages 2003/08/14
[#1407] Re: _id2ref bug? — matz@... (Yukihiro Matsumoto) 2003/08/14

Hi,

[#1413] Re: _id2ref bug? (REPRODUCED, short) — Ryan Pavlik <rpav@...> 2003/08/14

On Fri, 15 Aug 2003 01:57:18 +0900

Re: subclassing Structs

From: Eugene Scripnik <Eugene.Scripnik@...>
Date: 2003-08-14 09:57:59 UTC
List: ruby-core #1405
Yukihiro Matsumoto wrote:

> |I'm trying to create class which behaves as struct (almost) and has some 
> |other useful methods. But subclassing Struct seems to work differently 
> |from other builtin classes. Here is the sample:
> 
> That's because Struct class is a abstract factory for each Struct
> (e.g. Struct.new does not return instance of Struct, but subclass of
> it).  I'm not sure what you want to achieve by subclassing, though.
My example didn't show that but I wanted to create struct-class with 
dynamic attributes and additional constructors.

class SubStruct < Struct
   def new2
     new( 'attr1_value', 'attr2_value' )
   end
end

new2 - instance method of SubStruct (Struct) and I thought it has to be 
class method of SubStruct.new( ... ) class.

-- 
Eugene Scripnik
IT Group
Software Architect
Tel./Fax +380 (372) 58-43-10
email: Eugene.Scripnik@itgrp.net
http://www.itgrp.net/


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