Ok, thanks Jim. I have filed a bug here:
http://ironruby.codeplex.com/WorkItem/View.aspx?WorkItemId=3934 <http://ironruby.codeplex.com/WorkItem/View.aspx?WorkItemId=3934>I also noticed that event when using the form method(:name).Of(String).Call(param) If you're calling a protected method from a derived class like this you'll get a ArgumentError. On Thu, Feb 11, 2010 at 7:56 PM, Ryan Riley <ryan.ri...@panesofglass.org>wrote: > On what types will IR be able to infer the types? Is that documented on the > site and I just didn't see it? > > Ryan Riley > > > > On Thu, Feb 11, 2010 at 9:55 AM, Jim Deville <jdevi...@microsoft.com>wrote: > >> That call actually should (usually) be able to infer the type. Please file >> a bug on codeplex that Generic Type inference isn’t working with ByRef >> types. >> >> >> >> JD >> >> >> >> *From:* ironruby-core-boun...@rubyforge.org [mailto: >> ironruby-core-boun...@rubyforge.org] *On Behalf Of *Shay Friedman >> *Sent:* Thursday, February 11, 2010 6:53 AM >> *To:* ironruby-core@rubyforge.org >> *Subject:* Re: [Ironruby-core] Calling a C# method with a byref parameter >> >> >> >> You should call generic methods a bit differently. >> >> >> >> The next code works: >> >> ret_val = c.method(:do_something_else).of(String).call(str) >> >> >> >> Shay. >> >> -------------------------------------------------------- >> Shay Friedman | .NET Technologies Expert | Author of IronRuby Unleashed | >> Sela Technology Center >> Blog: http://IronShay.com | Twitter: http://twitter.com/ironshay >> >> On Thu, Feb 11, 2010 at 4:44 PM, Michael Erasmus < >> michaeleras...@gmail.com> wrote: >> >> Thanks Shay. >> >> >> >> OK your code works. But my trouble seems to come in with the Generic >> method. >> >> >> >> When I do: >> >> >> >> public class Class1 >> >> { >> >> public string DoSomething(ref string test) >> >> { >> >> test = test + "tamtamtam"; >> >> >> >> return "return value"; >> >> } >> >> >> >> public string DoSomethingElse<T>(ref T test) >> >> { >> >> return test.ToString(); >> >> } >> >> } >> >> >> >> and then call it from IR: >> >> >> >> >> >> >>> c = TestClass::Class1.new >> >> => TestClass.Class1 >> >> >>> c.do_something("Bla") >> >> => ['return value', 'Blatamtamtam'] >> >> >>> c.do_something_else("Bla") >> >> Microsoft.Scripting.Core:0:in `Bind': Expression of type >> 'IronRuby.Builtins.Muta >> >> bleString&' cannot be used for parameter of type >> 'IronRuby.Builtins.MutableStrin >> >> g' of method 'System.String >> DoSomethingElse[MutableString](IronRuby.Builtins.Mut >> >> ableString ByRef)' (ArgumentError) >> >> from Microsoft.Scripting.Core:0:in `BindCore' >> >> from :0 >> >> >> >> >> >> >> >> >> >> On Thu, Feb 11, 2010 at 4:12 PM, Shay Friedman <shay.fried...@gmail.com> >> wrote: >> >> It returns another return value with the new ref value. >> >> >> >> For example, if you have the next c# class: >> >> public class Class1 >> >> { >> >> public string DoSomething(ref string test) >> >> { >> >> test = test + "tamtamtam"; >> >> >> >> return "return value"; >> >> } >> >> } >> >> >> >> This is the IronRuby code you can write to use it: >> >> >>> require 'c:\dev\TestApps\TestClass\TestClass\bin\Debug\TestClass.dll' >> >> => true >> >> >>> c = Class1.new >> >> => TestClass.Class1 >> >> >>> str = "hello" >> >> => "hello" >> >> >>> result = c.do_something(str) >> >> => ['return value', 'hellotamtamtam'] >> >> >> >> Pay attention that the result variable is an array that contains the >> method return value as the first item and the ref value as the second >> parameter. >> >> >> >> Shay. >> >> -------------------------------------------------------- >> Shay Friedman | .NET Technologies Expert | Author of IronRuby Unleashed | >> Sela Technology Center >> Blog: http://IronShay.com | Twitter: http://twitter.com/ironshay >> >> On Thu, Feb 11, 2010 at 3:44 PM, Michael Erasmus < >> michaeleras...@gmail.com> wrote: >> >> Hi Everyone, >> >> >> >> I'm trying to write a IronRuby script that interops with a a .NET assembly >> written in C#. >> >> >> >> It has a class that derives from a base class in the .NET assembly. One of >> the base class protected methods looks like this: >> >> >> >> protected void OnNotifyPropertyChanged<T>(string name, ref T localmember, >> T value) >> >> { >> >> ...... >> >> } >> >> >> >> I can't for the life of me figure out how to call this method from IR in >> my derived class. >> >> The documentation mentions that you can call *out *parameters without >> using them as arguments, but I can't seem to find anything about *ref * >> params. >> >> >> >> If I just try calling the method like this: >> >> >> >> OnNotifyPropertyChanged(property_name, value, value) >> >> >> >> I get this error: >> >> >> >> *Microsoft.Scripting.Core:0:in `Bind': Expression of type >> 'IronRuby.Builtins.Muta* >> >> *bleString&' cannot be used for parameter of type >> 'IronRuby.Builtins.MutableStrin* >> >> *g' of method 'Void >> #base#OnNotifyPropertyChanged[MutableString](System.String, I* >> >> *ronRuby.Builtins.MutableString ByRef, IronRuby.Builtins.MutableString)' >> (Argumen* >> >> *tError)* >> >> * from Microsoft.Scripting.Core:0:in `BindCore'* >> >> * from ./dynamic_event_item.rb:22:in `method_missing'* >> >> * from :0* >> >> >> >> >> >> Am I missing something? >> >> >> >> Thanks >> >> >> >> Michael Erasmus >> >> >> >> >> >> _______________________________________________ >> Ironruby-core mailing list >> Ironruby-core@rubyforge.org >> http://rubyforge.org/mailman/listinfo/ironruby-core >> >> >> >> >> _______________________________________________ >> Ironruby-core mailing list >> Ironruby-core@rubyforge.org >> http://rubyforge.org/mailman/listinfo/ironruby-core >> >> >> >> >> _______________________________________________ >> Ironruby-core mailing list >> Ironruby-core@rubyforge.org >> http://rubyforge.org/mailman/listinfo/ironruby-core >> >> >> >> _______________________________________________ >> Ironruby-core mailing list >> Ironruby-core@rubyforge.org >> http://rubyforge.org/mailman/listinfo/ironruby-core >> >> > > _______________________________________________ > Ironruby-core mailing list > Ironruby-core@rubyforge.org > http://rubyforge.org/mailman/listinfo/ironruby-core > >
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