Ironruby core - Jan 2009 - Calling overloaded methods

Hello,

C#
    public class Cls {
        public void foo(object a) {
            Console.WriteLine("foo #1");
        }
        public void foo(object[] a) {
            Console.WriteLine("foo #2");
        }
    }

Ruby:

    Cls.new.foo(7)
    Cls.new.foo([3, 4])

Output:
    foo #1
    foo #1  <-- Calling foo(object a) again


So how can I call foo(object[] a)?

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

You''ll need to build a CLR array rather than a Ruby array.

require ''mscorlib''
System::Array.create_instance(System::Object.to_clr_type, 2)
o = System::Array.create_instance(System::Object.to_clr_type,
2)
>>> o[0] = 3
>>> o[1] = 4
You can monkey-patch Array and add this as a helper:

class Array
  def to_clr_ary
    o = System::Array.create_instance(System::Object.to_clr_type, length)
    each_with_index { |obj, i| o[i] = obj }
    o
  end
end

CLR arrays and Ruby arrays are totally different; Ruby arrays are much more
similar to "List<object>" than to "object[]".  So
it''s unlikely that IronRuby would ever do this conversion automatically
for you.

-----Original Message-----
From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Alex 2k8
Sent: Friday, January 09, 2009 8:17 AM
To: ironruby-core at rubyforge.org
Subject: [Ironruby-core] Calling overloaded methods

Hello,

C#
    public class Cls {
        public void foo(object a) {
            Console.WriteLine("foo #1");
        }
        public void foo(object[] a) {
            Console.WriteLine("foo #2");
        }
    }

Ruby:

    Cls.new.foo(7)
    Cls.new.foo([3, 4])

Output:
    foo #1
    foo #1  <-- Calling foo(object a) again


So how can I call foo(object[] a)?

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

[3,4] is not an array of objects. It''s a RubyArray. 

You can create a CLR array like this:

v = System::Array.of(Object).new(3)
[1,2,3].each_with_index { |x,i| v[i] = x }

Tomas

-----Original Message-----
From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Alex 2k8
Sent: Friday, January 09, 2009 8:17 AM
To: ironruby-core at rubyforge.org
Subject: [Ironruby-core] Calling overloaded methods

Hello,

C#
    public class Cls {
        public void foo(object a) {
            Console.WriteLine("foo #1");
        }
        public void foo(object[] a) {
            Console.WriteLine("foo #2");
        }
    }

Ruby:

    Cls.new.foo(7)
    Cls.new.foo([3, 4])

Output:
    foo #1
    foo #1  <-- Calling foo(object a) again


So how can I call foo(object[] a)?

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