Ramesh,
You can still access RubyContext through
Microsoft.Scripting.Hosting.Providers.HostingHelpers.GetLanguageContext.
The following extension method adds the old API back ... if you need
it:
public static class IronRubyExtensions {
public static RubyContext GetExecutionContext(this
ScriptEngine engine) {
return HostingHelpers.GetLanguageContext(engine) as RubyContext;
}
}
Then setting a global variable from C# is:
engine.GetExecutionContext().DefineGlobalVariable("gVar", 42);
That being said, this API isn't final and may change in future
versions of the DLR. If you rather use an API that is more final, and
you still *really* need to set a global variable, you could do it by
actually executing Ruby code:
dynamic scope = engine.CreateScope();
scope.gVar = 42
engine.Execute("$gVar = gVar", scope);
Now to the address my "if you need it" comments:
Ruby.GetExecutionContext(ScriptEngine) was removed from IronRuby 1.0
as we didn't want to promote an hosting-level API that is
language-specific. Also, because it's main usage is for setting global
variables (since there is no DLR-level API for Ruby globals), we felt
comfortable about introducing this breaking change as using Ruby
global variables is not a recommended practice (see
http://www.rubyist.net/~slagell/ruby/globalvars.html).
~Jimmy
On Fri, May 20, 2011 at 3:36 PM, Ramesh N. <li...@ruby-forum.com> wrote:
> How to setup global variables in CLR that could be accessed by scripts
> running in Iron Ruby engine hosted in CLR.
>
> Some posts referred to the API Runtime.GetCurrentExecutionContext and
> then setting up global variables there but in IronRuby version 1.1.3
> this API is missing.
>
> Ruby Script code (Test.rb):
> class Test
> def DoSomething()
> puts "Value of global variable is #{$gVar}"
> end
> end
>
> C# code:
> // setup runtime etc
> engine = runtime.GetEngine("IronRuby");
>
> // setup global variables
> // something like gVar = "Hello IronRuby"
> scriptSource = engine.CreateScriptSourceFromFile(scriptFile)
> scriptSource.Execute()
>
> object myType = engine.Runtime.Globals.GetVariable(“Test”);
> // Create a class instance
> object myTypeObj = engine.Operations.CreateInstance(myType);
> // Execute method
> object result = engine.Operations.InvokeMember(myTypeObj,
> “doSomething”);
>
> Any help is greatly appreciated.
>
> Thank you,
> Ramesh
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Ironruby-core mailing list
> Ironruby-core@rubyforge.org
> http://rubyforge.org/mailman/listinfo/ironruby-core
>
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