Ironruby core - Feb 2009 - Getting started in VB?

I''d like to use IronRuby to make some applications extensible, but
I''m
having some problems getting started:

Here''s code I run when you click a button:

runtime = ScriptRuntime.CreateFromConfiguration()
runtime.ExecuteFile("MyController.rb")
Dim engine As ScriptEngine = runtime.GetEngine("Ruby")
Dim code As String
code = String.Format("{0}.new.method :{1}", "MyController",
"do_foo")
Dim action As ScriptSource = engine.CreateScriptSourceFromString(code)
Dim result As Object

result = engine.Operations.Call(action, 1, 2)
''^I get an exception saying: The method or operation is not
implemented.

Me.TextBox1.Text = result.ToString()



Here is the ruby code:

class MyController
  def do_foo a, b
    puts a, b
  end
end


I''ve tried googleing the problem but I can''t find any good
tutorials.

Any help?
-- 
Posted via http://www.ruby-forum.com/.

A ScriptSource isn''t compiled code yet, so you''ll need to call
ScriptSource.Execute() to actually run it. So, your example never ran the string
in the "code" variable. Also, because your "action" variable
contains code that hasn''t been compiled, sending it to
ObjectOperations.Call() will tell you "The method or operation is not
implemented", because it can''t do anything with non-compiled code.
=) Lastly, in this scenario, there''s no reason to use a string to grab
the method, just to later call it with VB; you can do it all in VB.

Here''s a snippet of code which will grab a Ruby class, instantiate it,
get a method on that class, and call it with arguments:

'' Initialize the DLR
runtime = ScriptRuntime.CreateFromConfiguration()
Dim engine As ScriptEngine = runtime.GetEngine("Ruby")

'' Execute a Ruby file
runtime.ExecuteFile("MyController.rb")

'' Get a class and initialize it
Dim rubyClass As Object = runtime.Globals.GetVariable("MyController")
Dim rubyObject As Object = engine.Operations.CreateInstance(rubyClass)

'' Get a method and call it
Dim rubyMethod As Object = engine.Operations.GetMember(rubyObject,
"do_foo")
Dim params() As Integer = {1, 2}
Dim result As Object = engine.Operations.Call(rubyMethod, params)

'' And lastly ...
Me.TextBox1.Text = result.ToString()


Hope that helps,
~Jimmy
> -----Original Message-----
> From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-
> bounces at rubyforge.org] On Behalf Of Mr X enterprises
> Sent: Wednesday, February 25, 2009 9:13 PM
> To: ironruby-core at rubyforge.org
> Subject: [Ironruby-core] Getting started in VB?
> 
> I''d like to use IronRuby to make some applications extensible, but
I''m
> having some problems getting started:
> 
> Here''s code I run when you click a button:
> 
> runtime = ScriptRuntime.CreateFromConfiguration()
> runtime.ExecuteFile("MyController.rb")
> Dim engine As ScriptEngine = runtime.GetEngine("Ruby")
> Dim code As String
> code = String.Format("{0}.new.method :{1}",
"MyController", "do_foo")
> Dim action As ScriptSource = engine.CreateScriptSourceFromString(code)
> Dim result As Object
> 
> result = engine.Operations.Call(action, 1, 2)
> ''^I get an exception saying: The method or operation is not
> implemented.
> 
> Me.TextBox1.Text = result.ToString()
> 
> 
> 
> Here is the ruby code:
> 
> class MyController
>   def do_foo a, b
>     puts a, b
>   end
> end
> 
> 
> I''ve tried googleing the problem but I can''t find any
good tutorials.
> 
> Any help?
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core

This should work:

        Dim engine = IronRuby.Ruby.CreateEngine()
        engine.ExecuteFile("MyController.rb")
        Dim controllerClass =
engine.Runtime.Globals.GetVariable("MyController")
        Dim controller = engine.Operations.CreateInstance(controllerClass)
        engine.Operations.InvokeMember(controller, "do_foo")

Tomas


-----Original Message-----
From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Mr X enterprises
Sent: Wednesday, February 25, 2009 9:13 PM
To: ironruby-core at rubyforge.org
Subject: [Ironruby-core] Getting started in VB?

I''d like to use IronRuby to make some applications extensible, but
I''m
having some problems getting started:

Here''s code I run when you click a button:

runtime = ScriptRuntime.CreateFromConfiguration()
runtime.ExecuteFile("MyController.rb")
Dim engine As ScriptEngine = runtime.GetEngine("Ruby")
Dim code As String
code = String.Format("{0}.new.method :{1}", "MyController",
"do_foo")
Dim action As ScriptSource = engine.CreateScriptSourceFromString(code)
Dim result As Object

result = engine.Operations.Call(action, 1, 2)
''^I get an exception saying: The method or operation is not
implemented.

Me.TextBox1.Text = result.ToString()



Here is the ruby code:

class MyController
  def do_foo a, b
    puts a, b
  end
end


I''ve tried googleing the problem but I can''t find any good
tutorials.

Any help?
-- 
Posted via http://www.ruby-forum.com/.
_______________________________________________
Ironruby-core mailing list
Ironruby-core at rubyforge.org
http://rubyforge.org/mailman/listinfo/ironruby-core

Thank you guys so much! :D

Now I can continue on with this. :)

Thank you!

-- 
Posted via http://www.ruby-forum.com/.

Sorry, I have another problem:

engine.Operations.CreateInstance(rubyClass)

It is saying that CreateInstance is not a member of 
Microsoft.Scripting.Hosting.ObjectOperations.


There are Create() and CreateObjRef() functions.

Any help?

Thanks. :)
-- 
Posted via http://www.ruby-forum.com/.

Do you have the latest build? See
http://nightlybuilds.cloudapp.net/Project.aspx?project=dlr

Tomas

-----Original Message-----
From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Mr X enterprises
Sent: Thursday, February 26, 2009 2:18 PM
To: ironruby-core at rubyforge.org
Subject: Re: [Ironruby-core] Getting started in VB?

Sorry, I have another problem:

engine.Operations.CreateInstance(rubyClass)

It is saying that CreateInstance is not a member of 
Microsoft.Scripting.Hosting.ObjectOperations.


There are Create() and CreateObjRef() functions.

Any help?

Thanks. :)
-- 
Posted via http://www.ruby-forum.com/.
_______________________________________________
Ironruby-core mailing list
Ironruby-core at rubyforge.org
http://rubyforge.org/mailman/listinfo/ironruby-core

I got the newest build.
It said use Invoke() instead of Call(), so I used Invoke().


I get and exception for:
engine.Operations.Call(rubyMethod, params)

saying:
wrong number of arguments (1 for 2)


Thanks for all of your help. :)
-- 
Posted via http://www.ruby-forum.com/.

What does "params" contain? If I recall, the method you''re
calling requires two parameters ...
________________________________________
From: ironruby-core-bounces at rubyforge.org [ironruby-core-bounces at
rubyforge.org] On Behalf Of Mr X Enterprises [lists at ruby-forum.com]
Sent: Thursday, February 26, 2009 9:35 PM
To: ironruby-core at rubyforge.org
Subject: Re: [Ironruby-core] Getting started in VB?

I got the newest build.
It said use Invoke() instead of Call(), so I used Invoke().


I get and exception for:
engine.Operations.Call(rubyMethod, params)

saying:
wrong number of arguments (1 for 2)


Thanks for all of your help. :)
--
Posted via http://www.ruby-forum.com/.
_______________________________________________
Ironruby-core mailing list
Ironruby-core at rubyforge.org
http://rubyforge.org/mailman/listinfo/ironruby-core

Dim params() As Integer = {1, 2}
-- 
Posted via http://www.ruby-forum.com/.

Nevermind, I figured it out. :)

I had to use parenthesesis in the def.

def do_foo(v1,v2)

Thanks for all of your help. :)
-- 
Posted via http://www.ruby-forum.com/.