C# Indexers. how to implement them in D.. also property related.

Steven Schveighoffer schveiguy at yahoo.com
Tue Jun 29 07:27:18 PDT 2010

On Tue, 29 Jun 2010 09:55:50 -0400, BLS <windevguy at hotmail.de> wrote:

> On 29/06/2010 15:35, BLS wrote:
>> On 29/06/2010 15:27, Steven Schveighoffer wrote:
>>> string opIndex(string columnName);
>> yeah this is what I did, too..
>> However defined as ;
>> interface I1 {
>> string opIndex(string columnName);
>> }
>> is a no go. So can we say operator overloading within interfaces is not
>> allowed in D2 ?
>> thanks again Steve.. try to learn the interface/property stuff.
> Jeez, my mistake.. forget to create the implementation. sorry!

LOL!   :)

As others have said, templates do not yet work in interfaces, and there is  
another subtle problem: templates in interfaces are not virtual so they  
cannot enjoy covariance.  This is a problem for dcollections which uses  
operators in interfaces.

The only solution right now is to reimplement the template in the derived  

Not a fun situation...


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