# Attributes **URL:** \ **Category:** IronRuby\ **Created:** [February 19, 2009, 1:40am UTC](https://www.ruby-forum.com/t/attributes/160707 "2009-02-19T01:40:53Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Orion\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/65b543/32.png) [@Orion\_E](https://www.ruby-forum.com/u/Orion_E)\ **Post date:** [February 19, 2009, 1:40am UTC](https://www.ruby-forum.com/t/attributes/160707/1 "2009-02-19T01:40:53Z")
I’d like to mock up a WCF service using IronRuby. This presents some stumbling blocks however, in that WCF ServiceContracts are defined by creating an Interface and then applying attributes to it. Interface ~= Module in IronRuby, so that would probably be fine, but how can I apply attributes to the module and the methods it declares? ---
**Author:** ![Orion\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/65b543/32.png) [@Orion\_E](https://www.ruby-forum.com/u/Orion_E)\ **Post date:** [February 19, 2009, 2:02am UTC](https://www.ruby-forum.com/t/attributes/160707/2 "2009-02-19T02:02:31Z")
AFAIK you can’t yet. It’s one of those interop things that are on the back burner while language compatibility is worked on. There’s still alot of discussion needed about how to do this… ---
**Author:** ![Orion\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/65b543/32.png) [@Orion\_E](https://www.ruby-forum.com/u/Orion_E)\ **Post date:** [February 19, 2009, 2:19am UTC](https://www.ruby-forum.com/t/attributes/160707/3 "2009-02-19T02:19:28Z")
We currently don’t support attributes. As a workaround you can define a class in C# that will have all the attributes. The class can then forward all functionality to Ruby (e.g. via abstract methods implemented in a class derived in Ruby). Tomas From: removed\_email\_address@domain.invalid [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Orion E. Sent: Wednesday, February 18, 2009 4:20 PM To: removed\_email\_address@domain.invalid Subject: [Ironruby-core] Attributes I’d like to mock up a WCF service using IronRuby. This presents some stumbling blocks however, in that WCF ServiceContracts are defined by creating an Interface and then applying attributes to it. Interface ~= Module in IronRuby, so that would probably be fine, but how can I apply attributes to the module and the methods it declares? ---
**Author:** ![Orion\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/65b543/32.png) [@Orion\_E](https://www.ruby-forum.com/u/Orion_E)\ **Post date:** [February 19, 2009, 2:32am UTC](https://www.ruby-forum.com/t/attributes/160707/4 "2009-02-19T02:32:21Z")
Fair enough: Here’s my thoughts on what such a thing might look like: module IMyService clr\_attribute ServiceContractAttribute.new(“blah”) ``` clr_attribute OperationContractAttribute.new, :on => "SomeMethod" def SomeMethod; end ``` end Could also have similar methods which map from string to ClassName at runtime clr\_attr “ServiceContract” clr\_attr “OperationContract”, :on =\> “SomeMethod” Could also implement named parameters eg clr\_attr “ServiceContract”, :name =\> “MyFancyContract” clr\_attr “OperationContract”, :name =\> “CoolOperation”, :on =\> “SomeMethod” Hope this helps inspire 🙂 On Thu, Feb 19, 2009 at 2:01 PM, Michael L. \< ---
**Author:** ![Orion\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/65b543/32.png) [@Orion\_E](https://www.ruby-forum.com/u/Orion_E)\ **Post date:** [February 19, 2009, 2:57am UTC](https://www.ruby-forum.com/t/attributes/160707/5 "2009-02-19T02:57:31Z")
Thanks for answering that. I wrote a small C# interface and then implemented that from IronRuby On Thu, Feb 19, 2009 at 1:54 PM, Tomas M. \< ---
**Author:** ![Orion\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/65b543/32.png) [@Orion\_E](https://www.ruby-forum.com/u/Orion_E)\ **Post date:** [February 19, 2009, 3:32am UTC](https://www.ruby-forum.com/t/attributes/160707/6 "2009-02-19T03:32:41Z")
We think in similar directions. Tomas From: removed\_email\_address@domain.invalid [[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)] On Behalf Of Orion E. Sent: Wednesday, February 18, 2009 5:18 PM To: removed\_email\_address@domain.invalid Subject: Re: [Ironruby-core] Attributes Fair enough: Here’s my thoughts on what such a thing might look like: module IMyService clr\_attribute ServiceContractAttribute.new(“blah”) ``` clr_attribute OperationContractAttribute.new, :on => "SomeMethod" def SomeMethod; end ``` end Could also have similar methods which map from string to ClassName at runtime clr\_attr “ServiceContract” clr\_attr “OperationContract”, :on =\> “SomeMethod” Could also implement named parameters eg clr\_attr “ServiceContract”, :name =\> “MyFancyContract” clr\_attr “OperationContract”, :name =\> “CoolOperation”, :on =\> “SomeMethod” Hope this helps inspire 🙂 On Thu, Feb 19, 2009 at 2:01 PM, Michael L. \ wrote: AFAIK you can’t yet. It’s one of those interop things that are on the back burner while language compatibility is worked on. There’s still alot of discussion needed about how to do this… On Wed, Feb 18, 2009 at 7:20 PM, Orion E. \ wrote: I’d like to mock up a WCF service using IronRuby. This presents some stumbling blocks however, in that WCF ServiceContracts are defined by creating an Interface and then applying attributes to it. Interface ~= Module in IronRuby, so that would probably be fine, but how can I apply attributes to the module and the methods it declares? * * * Ironruby-core mailing list removed\_email\_address@domain.invalid[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) [http://rubyforge.org/mailman/listinfo/ironruby-core](http://rubyforge.org/mailman/listinfo/ironruby-core) – Michael L. IronRuby MVP [http://blog.prokrams.com](http://blog.prokrams.com)