Ironruby core - Apr 2009 - defined?(xxx) behaves differently when called from Silverlight

Hi,

I noticed something that I didn''t expect while working with
Silverlight.

defined?(System::Windows::Forms::Control)

throws an exception:

MemberAccessException: uninitialized constant System::Windows::Forms
   ? IronRuby.Builtins.ModuleOps.ConstantMissing(RubyModule self, String name)
   ? _stub_$2##1(Closure , CallSite , CodeContext , RubyModule , SymbolId )
   ? System.Scripting.Actions.MatchCaller.Call3[T0,T1,T2,TRet](Func`5
target, CallSite site, Object[] args)
   ? System.Scripting.Actions.CallSite`1.UpdateAndExecute(Object[] args)
   ? System.Scripting.Actions.UpdateDelegates.Update3[T,T0,T1,T2,TRet](CallSite
site, T0 arg0, T1 arg1, T2 arg2)
   ? IronRuby.Builtins.RubySites.ModuleConstMissing(CodeContext
context, RubyModule self, String name)

The same call under ir.exe will work as expected in MRI.

Can anyone else reproduce that issue (or is it something known
already), or is my silverlight install messing up ?

cheers,

-- Thibaut

On 4/1/09, Thibaut Barr?re <thibaut.barrere at gmail.com>
wrote:
>  Can anyone else reproduce that issue (or is it something known
>  already), or is my silverlight install messing up ?
Well, there''s no System.Windows.Froms.Control in silverlight to begin
with.

defined?(System::Windows::Application)

does work though.

-- 
Jb Evain  <jb at nurv.fr>

On 4/2/09, Jb Evain <jb at nurv.fr> wrote:
>  defined?(System::Windows::Application)
>
>  does work though.
At least it works in the IronRuby repl. But trying to get a undefined
namespace doesn''t throw an exception either. How''re you
running the
code?

-- 
Jb Evain  <jb at nurv.fr>

System::Windows::Forms doesn''t exist in Silverlight. You want
System::Windows::Controls.
> -----Original Message-----
> From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-
> bounces at rubyforge.org] On Behalf Of Thibaut Barr?re
> Sent: Wednesday, April 01, 2009 1:08 PM
> To: ironruby-core
> Subject: [Ironruby-core] defined?(xxx) behaves differently when called
> from Silverlight
>
> Hi,
>
> I noticed something that I didn''t expect while working with
> Silverlight.
>
> defined?(System::Windows::Forms::Control)
>
> throws an exception:
>
> MemberAccessException: uninitialized constant System::Windows::Forms
>    ? IronRuby.Builtins.ModuleOps.ConstantMissing(RubyModule self,
> String name)
>    ? _stub_$2##1(Closure , CallSite , CodeContext , RubyModule ,
> SymbolId )
>    ? System.Scripting.Actions.MatchCaller.Call3[T0,T1,T2,TRet](Func`5
> target, CallSite site, Object[] args)
>    ? System.Scripting.Actions.CallSite`1.UpdateAndExecute(Object[]
> args)
>    ?
> System.Scripting.Actions.UpdateDelegates.Update3[T,T0,T1,T2,TRet](CallS
> ite
> site, T0 arg0, T1 arg1, T2 arg2)
>    ? IronRuby.Builtins.RubySites.ModuleConstMissing(CodeContext
> context, RubyModule self, String name)
>
> The same call under ir.exe will work as expected in MRI.
>
> Can anyone else reproduce that issue (or is it something known
> already), or is my silverlight install messing up ?
>
> cheers,
>
> -- Thibaut
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core

Granted, it shouldn''t throw ... and doesn''t for me in SL.

rb> defined?(System::Windows::Forms)
=> nil
rb> defined?(System::Windows::Forms::Controls)
=> nil
> -----Original Message-----
> From: Jimmy Schementi
> Sent: Wednesday, April 01, 2009 4:13 PM
> To: ironruby-core at rubyforge.org
> Subject: RE: [Ironruby-core] defined?(xxx) behaves differently when
> called from Silverlight
>
> System::Windows::Forms doesn''t exist in Silverlight. You want
> System::Windows::Controls.
>
> > -----Original Message-----
> > From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-
> > bounces at rubyforge.org] On Behalf Of Thibaut Barr?re
> > Sent: Wednesday, April 01, 2009 1:08 PM
> > To: ironruby-core
> > Subject: [Ironruby-core] defined?(xxx) behaves differently when
> called
> > from Silverlight
> >
> > Hi,
> >
> > I noticed something that I didn''t expect while working with
> > Silverlight.
> >
> > defined?(System::Windows::Forms::Control)
> >
> > throws an exception:
> >
> > MemberAccessException: uninitialized constant System::Windows::Forms
> >    ? IronRuby.Builtins.ModuleOps.ConstantMissing(RubyModule self,
> > String name)
> >    ? _stub_$2##1(Closure , CallSite , CodeContext , RubyModule ,
> > SymbolId )
> >    ? System.Scripting.Actions.MatchCaller.Call3[T0,T1,T2,TRet](Func`5
> > target, CallSite site, Object[] args)
> >    ? System.Scripting.Actions.CallSite`1.UpdateAndExecute(Object[]
> > args)
> >    ?
> >
> System.Scripting.Actions.UpdateDelegates.Update3[T,T0,T1,T2,TRet](CallS
> > ite
> > site, T0 arg0, T1 arg1, T2 arg2)
> >    ? IronRuby.Builtins.RubySites.ModuleConstMissing(CodeContext
> > context, RubyModule self, String name)
> >
> > The same call under ir.exe will work as expected in MRI.
> >
> > Can anyone else reproduce that issue (or is it something known
> > already), or is my silverlight install messing up ?
> >
> > cheers,
> >
> > -- Thibaut
> > _______________________________________________
> > Ironruby-core mailing list
> > Ironruby-core at rubyforge.org
> > http://rubyforge.org/mailman/listinfo/ironruby-core

It seems to me that this misses the most important part of the original report:
> The same call under ir.exe will work as expected in MRI.
Presumably, System::Windows::Forms doesn''t exist in MRI, either :P

-----Original Message-----
From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-bounces at
rubyforge.org] On Behalf Of Jimmy Schementi
Sent: Wednesday, April 01, 2009 4:13 PM
To: ironruby-core at rubyforge.org
Subject: Re: [Ironruby-core] defined?(xxx) behaves differently when called from
Silverlight

System::Windows::Forms doesn''t exist in Silverlight. You want
System::Windows::Controls.
> -----Original Message-----
> From: ironruby-core-bounces at rubyforge.org [mailto:ironruby-core-
> bounces at rubyforge.org] On Behalf Of Thibaut Barr?re
> Sent: Wednesday, April 01, 2009 1:08 PM
> To: ironruby-core
> Subject: [Ironruby-core] defined?(xxx) behaves differently when called
> from Silverlight
>
> Hi,
>
> I noticed something that I didn''t expect while working with
> Silverlight.
>
> defined?(System::Windows::Forms::Control)
>
> throws an exception:
>
> MemberAccessException: uninitialized constant System::Windows::Forms
>    ? IronRuby.Builtins.ModuleOps.ConstantMissing(RubyModule self,
> String name)
>    ? _stub_$2##1(Closure , CallSite , CodeContext , RubyModule ,
> SymbolId )
>    ? System.Scripting.Actions.MatchCaller.Call3[T0,T1,T2,TRet](Func`5
> target, CallSite site, Object[] args)
>    ? System.Scripting.Actions.CallSite`1.UpdateAndExecute(Object[]
> args)
>    ?
> System.Scripting.Actions.UpdateDelegates.Update3[T,T0,T1,T2,TRet](CallS
> ite
> site, T0 arg0, T1 arg1, T2 arg2)
>    ? IronRuby.Builtins.RubySites.ModuleConstMissing(CodeContext
> context, RubyModule self, String name)
>
> The same call under ir.exe will work as expected in MRI.
>
> Can anyone else reproduce that issue (or is it something known
> already), or is my silverlight install messing up ?
>
> cheers,
>
> -- Thibaut
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
_______________________________________________
Ironruby-core mailing list
Ironruby-core at rubyforge.org
http://rubyforge.org/mailman/listinfo/ironruby-core

Hi,

I believe I need to give you more context about what I''m doing. In
Magic
(see
here<http://github.com/thbar/magic/blob/faf98c3161221e309290e7a6e311adb27fddf825/lib/magic.rb#L32>
in
particular) I currently have a single file providing support for WPF,
Silverlight and Windows Forms. I use defined? to determine if one of these
are available and adopt adequate behaviour.
So that''s why I run defined?(System::Windows::Forms::Control) inside
Silverlight. I can definitely think about alternatives (such as creating a
specific file for each scenario) - I could do that but I''m trying to
stay
with a single file and avoid metaprogramming for the moment as it''s
much
simpler to test.

So back to the issue, now that I hope you have a clearer understanding of
what I''m doing here.

Using ruby 1.8.6 or ironruby v0.3, running this file through command line
[ruby/ir] my_test.rb doesn''t choke:

raise "detected!" if defined?(System::Windows::Forms::Control)

Putting the same code as the first line of app.rb in a silverlight ironruby
app fails:

MemberAccessException: uninitialized constant System::Windows::Forms

Is there any way to retrieve some accurate info on versioning from inside
silverlight, so that I can make a better report or understand what''s
happening ?

-- Thibaut
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The folder SL is installed into is the version; if you''re using SL2 it
should be C:\Program Files\Microsoft Silverlight\2.0.40115.0\. SL3 Beta is
C:\Program Files\Microsoft Silverlight\3.0.40307.0\.

http://jimmy.schementi.com/silverlight/repro-defined.zip

Unzip that and double-click on the index.html file. The first line of app.xap is
defined?(System::Windows::Forms), and works fine. It also works in the console.
Let me know what happens for you.

~js

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 2:57 AM
To: ironruby-core at rubyforge.org
Subject: Re: [Ironruby-core] defined?(xxx) behaves differently when called from
Silverlight

Hi,

I believe I need to give you more context about what I''m doing. In
Magic (see
here<http://github.com/thbar/magic/blob/faf98c3161221e309290e7a6e311adb27fddf825/lib/magic.rb#L32>
in particular) I currently have a single file providing support for WPF,
Silverlight and Windows Forms. I use defined? to determine if one of these are
available and adopt adequate behaviour.

So that''s why I run defined?(System::Windows::Forms::Control) inside
Silverlight. I can definitely think about alternatives (such as creating a
specific file for each scenario) - I could do that but I''m trying to
stay with a single file and avoid metaprogramming for the moment as
it''s much simpler to test.

So back to the issue, now that I hope you have a clearer understanding of what
I''m doing here.

Using ruby 1.8.6 or ironruby v0.3, running this file through command line
[ruby/ir] my_test.rb doesn''t choke:

raise "detected!" if defined?(System::Windows::Forms::Control)

Putting the same code as the first line of app.rb in a silverlight ironruby app
fails:

MemberAccessException: uninitialized constant System::Windows::Forms

Is there any way to retrieve some accurate info on versioning from inside
silverlight, so that I can make a better report or understand what''s
happening ?

-- Thibaut
-------------- next part --------------
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>
> The folder SL is installed into is the version; if you?re using SL2 it
> should be C:\Program Files\Microsoft Silverlight\2.0.40115.0\. SL3 Beta is
> C:\Program Files\Microsoft Silverlight\3.0.40307.0\.
>
I''m testing this from my Mac. I''ll be searching for the files
using find.
>
>
> http://jimmy.schementi.com/silverlight/repro-defined.zip
>
>
>
> Unzip that and double-click on the index.html file. The first line of
> app.xap is defined?(System::Windows::Forms), and works fine. It also works
> in the console. Let me know what happens for you.
>
Clicking on index.html shows a welcome message and the ironruby console, so
it doesn''t seem to bang.

Editing has some weird behaviour: when I type (, defined? gets erased. Maybe
totally unrelated, but this mean I can''t test in the console.

I''m a bit puzzled as why it fails. I''ll try to find some extra
time to
investigate - may be related to the fact that I''m using Chiron on Mac ?

No idea what''s happening for the moment.

Thanks for the repro, Jimmy.

-- Thibaut
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Hey,

I finally removed all the bits of Silverlight (/Library/Internet
Plug-Ins/Silverlight* , /Library/Receipts/Silverlight*.pkg) and
reinstalled SL2.

It now works as expected. I didn''t find some way to understand what
really happened, but the issue is solved anyway.

thanks for your support,

-- Thibaut

Ah, you were on a Mac. Let me know if it happens again.
> -----Original Message-----
> 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 4:31 PM
> To: ironruby-core at rubyforge.org
> Subject: Re: [Ironruby-core] defined?(xxx) behaves differently when
> called from Silverlight
>
> Hey,
>
> I finally removed all the bits of Silverlight (/Library/Internet
> Plug-Ins/Silverlight* , /Library/Receipts/Silverlight*.pkg) and
> reinstalled SL2.
>
> It now works as expected. I didn''t find some way to understand
what
> really happened, but the issue is solved anyway.
>
> thanks for your support,
>
> -- Thibaut
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core at rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core

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 3:44 PM
To: ironruby-core at rubyforge.org
Subject: Re: [Ironruby-core] defined?(xxx) behaves differently when called from
Silverlight


The folder SL is installed into is the version; if you''re using SL2 it
should be C:\Program Files\Microsoft Silverlight\2.0.40115.0\. SL3 Beta is
C:\Program Files\Microsoft Silverlight\3.0.40307.0\.
I''m testing this from my Mac. I''ll be searching for the files
using find.



http://jimmy.schementi.com/silverlight/repro-defined.zip



Unzip that and double-click on the index.html file. The first line of app.xap is
defined?(System::Windows::Forms), and works fine. It also works in the console.
Let me know what happens for you.

Clicking on index.html shows a welcome message and the ironruby console, so it
doesn''t seem to bang.

Editing has some weird behaviour: when I type (, defined? gets erased. Maybe
totally unrelated, but this mean I can''t test in the console.

I''m a bit puzzled as why it fails. I''ll try to find some extra
time to investigate - may be related to the fact that I''m using Chiron
on Mac ?

No idea what''s happening for the moment.

Thanks for the repro, Jimmy.

-- Thibaut

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Woops, hit send too soon. I just tested it out on a Mac in FF3 and Safari3, and
nothing blew up and the console rendered fine. You''re future mail said
things work, so I guess I''m just confirming that your prior
installation was all-sorts-of-crazy.

Also, Chiron on the Mac wouldn''t cause this, as Chiron simply serves a
XAP file, and has nothing to do with the actual running of the SL app.

~js

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 3:44 PM
To: ironruby-core at rubyforge.org
Subject: Re: [Ironruby-core] defined?(xxx) behaves differently when called from
Silverlight


The folder SL is installed into is the version; if you''re using SL2 it
should be C:\Program Files\Microsoft Silverlight\2.0.40115.0\. SL3 Beta is
C:\Program Files\Microsoft Silverlight\3.0.40307.0\.
I''m testing this from my Mac. I''ll be searching for the files
using find.



http://jimmy.schementi.com/silverlight/repro-defined.zip



Unzip that and double-click on the index.html file. The first line of app.xap is
defined?(System::Windows::Forms), and works fine. It also works in the console.
Let me know what happens for you.

Clicking on index.html shows a welcome message and the ironruby console, so it
doesn''t seem to bang.

Editing has some weird behaviour: when I type (, defined? gets erased. Maybe
totally unrelated, but this mean I can''t test in the console.

I''m a bit puzzled as why it fails. I''ll try to find some extra
time to investigate - may be related to the fact that I''m using Chiron
on Mac ?

No idea what''s happening for the moment.

Thanks for the repro, Jimmy.

-- Thibaut

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Jb Evain wrote:
> On 4/1/09, Thibaut Barr? <thibaut.barrere at gmail.com> wrote:
>>  Can anyone else reproduce that issue (or is it something known
>>  already), or is my silverlight install messing up ?
> 
> Well, there''s no System.Windows.Froms.Control in silverlight to
begin
> with.
> 
> defined?(System::Windows::Application)
> 
> does work though.
-- 
Posted via http://www.ruby-forum.com/.