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 > >
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