How to transfer scriptscrope to a RubyCommandLine

Ruby IronRuby
1

I found Ironruby 1.0 change a lot for some APIs, at previous version

I can create a rubycommandline via C# like this

IronRuby.Hosting.RubyCommandLine rubycommandline = new
RubyCommandLine(new
IronRuby.Runtime.RubyContext(ScriptDomainManager.CurrentManager));

but now the construction accept zero parameters, so How transfer a
scriptscope to RubyCommandLine…?

I used debug to verbose the instance of RubyCommandLine, its scriptscope
is always null!

2

Ray L. wrote:

I found Ironruby 1.0 change a lot for some APIs, at previous version

I can create a rubycommandline via C# like this

IronRuby.Hosting.RubyCommandLine rubycommandline = new
RubyCommandLine(new
IronRuby.Runtime.RubyContext(ScriptDomainManager.CurrentManager));

but now the construction accept zero parameters, so How transfer a
scriptscope to RubyCommandLine…?

I used debug to verbose the instance of RubyCommandLine, its scriptscope
is always null!

2nd question why global variable does not work?

Form frm = new Form();
ScriptEngine ruby =
IronRuby.Ruby.GetEngine(IronRuby.Ruby.CreateRuntime());
ruby.Runtime.Globals.SetVariable(“frm”, frm);
ScriptScope scriptscope = ruby.Runtime.CreateScope();
ScriptSource script =
this.scriptengine.CreateScriptSourceFromFile(“test.rb”);
scriptscope.SetVariable(“frm”,frm);
ruby.Execute(script.GetCode(),scriptscope);

test.rb

defined? $frm
---------but it is nil…
defied? frm
it is ok…

3

Ruby global variables are not accessible via hosting API.
ScriptRuntime.Globals refers to global constants (constants defined on
Object).

ScriptEngine ruby = IronRuby.Ruby.CreateEngine();
ruby.Runtime.Globals.SetVariable(“Bar”, 2);
ScritpScope scope = ruby.CreateScope();
scope.SetVariable(“frm”, 123);
ruby.ExecuteFile(“test.rb”, file);

where test.rb is
p frm, defined?(frm), p Bar

prints
123
Nil
2

frm is looked up via method_missing on the main object.

Tomas

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ray L.
Sent: Thursday, May 13, 2010 7:15 AM
To: [email protected]
Subject: Re: [Ironruby-core] How to transfer scriptscrope to a
RubyCommandLine

Ray L. wrote:

I used debug to verbose the instance of RubyCommandLine, its
scriptscope is always null!

2nd question why global variable does not work?

Form frm = new Form();
ScriptEngine ruby =
IronRuby.Ruby.GetEngine(IronRuby.Ruby.CreateRuntime());
ruby.Runtime.Globals.SetVariable(“frm”, frm); ScriptScope scriptscope =
ruby.Runtime.CreateScope(); ScriptSource script =
this.scriptengine.CreateScriptSourceFromFile(“test.rb”);
scriptscope.SetVariable(“frm”,frm);
ruby.Execute(script.GetCode(),scriptscope);

test.rb

defined? $frm
---------but it is nil…
defied? frm
it is ok…

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

Ironruby-core mailing list
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http://rubyforge.org/mailman/listinfo/ironruby-core

4

Tomas M. wrote:

Can you describe your scenario where you use the command line? What
features you need? It’s relatively easy to implement a command line
yourself (see e.g.
tomasm.net). The APIs
in Microsoft.Hosting.Shell are mostly legacy and I wouldn’t recommend
using them.

Tomas

I tried to store a WinForm in my script scope, and if i could transfer
the script scope to the command line, that I have a chance to operate
this WinForm in ruby console. As an example,I could change the title of
the WinForm in command line like this:

$frm.text=“hello,world”

seems in ironpython (refer to
Exposing global variables in IronPython – The Stochastic Game)

I can get the global variables via import something, but to ironruby
whatever require or include, I can not import a global variables.

5

Tomas M. wrote:

Can you describe your scenario where you use the command line? What
features you need? It’s relatively easy to implement a command line
yourself (see e.g.
tomasm.net). The APIs
in Microsoft.Hosting.Shell are mostly legacy and I wouldn’t recommend
using them.

Tomas

Hi, Tomas

Thanks a lot for your response.

Here is an interesting example I found, but after upgrade to Ir 1.0
(.net 4) , it does not work now

http://michaeldotnet.blogspot.com/2008/01/semi-practical-ironruby.html

Thanks
Ray L.

6

Tomas M. wrote:

Can you describe your scenario where you use the command line? What
features you need? It’s relatively easy to implement a command line
yourself (see e.g.
tomasm.net). The APIs
in Microsoft.Hosting.Shell are mostly legacy and I wouldn’t recommend
using them.

Tomas

Thanks Tomas

At last, I found a thread you replied previously. if I used

        RubyContext context = GetExecutionContext(ruby);
        context.DefineGlobalVariable("logowin",logowin);

it works as expected… this made me a little confused, is the

context.DefineGlobalVariable

the same as

ruby.Runtime.Globals.SetVariable

the naming is just similiar and drive me crazy…

Regards
Ray

7

Can you describe your scenario where you use the command line? What
features you need? It’s relatively easy to implement a command line
yourself (see e.g.
tomasm.net). The APIs
in Microsoft.Hosting.Shell are mostly legacy and I wouldn’t recommend
using them.

Tomas