Ironruby core - Apr 2009 - How to instanciate a System::String from IronRuby?

Hi,

while trying to call some C# code from IronRuby, I get this:

my_csharp_class_instance.call(%w(some array))

:0: can''t convert Array into System::String[] (TypeError)

Is there some easy way to construct an array of System::String ? Or a
conversion ?

cheers,

-- Thibaut
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I don''t know if it''s the easiest way, but this should work as
a conversion:

x = [''a'', ''b'', ''c'']
System::Array[System::String].new(x.map { |s| s.to_s.to_clr_string })

(Obviously, if you know that the elements are already Ruby strings, you can omit
the "to_s".)

From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Thibaut Barr?re
Sent: Thursday, April 02, 2009 7:36 AM
To: ironruby-core
Subject: [Ironruby-core] How to instanciate a System::String[] from IronRuby?

Hi,

while trying to call some C# code from IronRuby, I get this:

my_csharp_class_instance.call(%w(some array))

:0: can''t convert Array into System::String[] (TypeError)

Is there some easy way to construct an array of System::String ? Or a conversion
?

cheers,

-- Thibaut
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class Array
        def to_clr_arr
        arr = System::Array.CreateInstance self[0].class.to_clr_type,
System::Int32.pase(self.length.to_s)
        self.each_with_index { |r, i| arr[i] = r }
        return arr
    end
end

my_csharp_class_instance.call(%w(some array).map{|x|
x.to_clr_string}.to_clr_arr)

2009/4/2 Thibaut Barr?re <thibaut.barrere at gmail.com>
> Hi,
>
> while trying to call some C# code from IronRuby, I get this:
>
> my_csharp_class_instance.call(%w(some array))
>
> :0: can''t convert Array into System::String[] (TypeError)
>
> Is there some easy way to construct an array of System::String ? Or a
> conversion ?
>
> cheers,
>
> -- Thibaut
>
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
>

-- 
Michael Letterle
IronRuby MVP
http://blog.prokrams.com
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Jimmy and I have discussed a to_clr_array(type) where type defaults to Object,
but nothing like that exists yet.


JD
________________________________
From: ironruby-core-bounces at rubyforge.org [ironruby-core-bounces at
rubyforge.org] on behalf of Curt Hagenlocher [curth at microsoft.com]
Sent: Thursday, April 02, 2009 8:03 AM
To: ironruby-core at rubyforge.org
Subject: Re: [Ironruby-core] How to instanciate a System::String[] from
IronRuby?

I don?t know if it?s the easiest way, but this should work as a conversion:

x = [''a'', ''b'', ''c'']
System::Array[System::String].new(x.map { |s| s.to_s.to_clr_string })

(Obviously, if you know that the elements are already Ruby strings, you can omit
the ?to_s?.)

From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Thibaut Barr?re
Sent: Thursday, April 02, 2009 7:36 AM
To: ironruby-core
Subject: [Ironruby-core] How to instanciate a System::String[] from IronRuby?

Hi,

while trying to call some C# code from IronRuby, I get this:

my_csharp_class_instance.call(%w(some array))

:0: can''t convert Array into System::String[] (TypeError)

Is there some easy way to construct an array of System::String ? Or a conversion
?

cheers,

-- Thibaut
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This is the right way:

x = [''a'', ''b'', ''c'']
System::Array[System::String].new(x.map { |s| s.to_s.to_clr_string })

This would simplify to

x = [''a'', ''b'', ''c'']
System::Array[System::String].new(x)

As soon as we implement implicit conversions here.

Tomas

From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Jim Deville
Sent: Thursday, April 02, 2009 8:41 AM
To: ironruby-core at rubyforge.org
Subject: Re: [Ironruby-core] How to instanciate a System::String[] from
IronRuby?

Jimmy and I have discussed a to_clr_array(type) where type defaults to Object,
but nothing like that exists yet.


JD
________________________________
From: ironruby-core-bounces at rubyforge.org [ironruby-core-bounces at
rubyforge.org] on behalf of Curt Hagenlocher [curth at microsoft.com]
Sent: Thursday, April 02, 2009 8:03 AM
To: ironruby-core at rubyforge.org
Subject: Re: [Ironruby-core] How to instanciate a System::String[] from
IronRuby?
I don''t know if it''s the easiest way, but this should work as
a conversion:

x = [''a'', ''b'', ''c'']
System::Array[System::String].new(x.map { |s| s.to_s.to_clr_string })

(Obviously, if you know that the elements are already Ruby strings, you can omit
the "to_s".)

From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Thibaut Barr?re
Sent: Thursday, April 02, 2009 7:36 AM
To: ironruby-core
Subject: [Ironruby-core] How to instanciate a System::String[] from IronRuby?

Hi,

while trying to call some C# code from IronRuby, I get this:

my_csharp_class_instance.call(%w(some array))

:0: can''t convert Array into System::String[] (TypeError)

Is there some easy way to construct an array of System::String ? Or a conversion
?

cheers,

-- Thibaut
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Hi,
thanks for the feedback - I''ll give these a go.

cheers

-- Thibaut
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