How to instanciate a System::String[] from IronRuby?


#1

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


#2

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: removed_email_address@domain.invalid
[mailto:removed_email_address@domain.invalid] On Behalf Of Thibaut
Barrère
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


#3

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 Barrère removed_email_address@domain.invalid


#4

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

JD


From: removed_email_address@domain.invalid
[removed_email_address@domain.invalid] on behalf of Curt H.
[removed_email_address@domain.invalid]
Sent: Thursday, April 02, 2009 8:03 AM
To: removed_email_address@domain.invalid
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: removed_email_address@domain.invalid
[mailto:removed_email_address@domain.invalid] On Behalf Of Thibaut
Barrère
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


#5

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: removed_email_address@domain.invalid
[mailto:removed_email_address@domain.invalid] On Behalf Of Jim D.
Sent: Thursday, April 02, 2009 8:41 AM
To: removed_email_address@domain.invalid
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: removed_email_address@domain.invalid
[removed_email_address@domain.invalid] on behalf of Curt H.
[removed_email_address@domain.invalid]
Sent: Thursday, April 02, 2009 8:03 AM
To: removed_email_address@domain.invalid
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: removed_email_address@domain.invalid
[mailto:removed_email_address@domain.invalid] On Behalf Of Thibaut
Barrère
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


#6

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

cheers

– Thibaut