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-boun...@rubyforge.org [mailto:ironruby-core-
> boun...@rubyforge.org] On Behalf Of Mr X enterprises
> Sent: Wednesday, February 25, 2009 9:13 PM
> To: ironruby-core@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@rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
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