Tomas, I wasn't reading your snippet right, the execute automatically executes.. But with the variable, you have to call it, I didn't notice that in your example you are actually calling it with () after you retrieve as a var. Sorry for the trouble. Works now, and is obvious why I was mistaken, Thanks
Best Regards, Kevin On Wed, Nov 11, 2009 at 2:28 PM, Tomas Matousek <tomas.matou...@microsoft.com> wrote: > GetVariable<T> and Execute<T> should do the same conversion. Could you send > the snippet that doesn't work? > > Tomas > > -----Original Message----- > From: ironruby-core-boun...@rubyforge.org > [mailto:ironruby-core-boun...@rubyforge.org] On Behalf Of Kevin Radcliffe > Sent: Wednesday, November 11, 2009 11:35 AM > To: ironruby-core@rubyforge.org > Subject: Re: [Ironruby-core] ironruby hosting as scripting engine > > Tomas, is this new, or changed? I couldn't seem to call a method using what > you showed. > Because "do_stuff" is a function that returns a list (in my case) I couldn't > do: > > var execute = scope.GetVariable<Func<string>>("do_stuff"); > > But instead, had to do something like this: > > return engine.Execute<TOutput>("do_stuff", scope); > > In any case, it worked. Just wondering if it won't allow for some reason > because I am expecting a complex type back (IList<string>) > > Thanks, -Kevin > > On Fri, Nov 6, 2009 at 8:59 PM, Tomas Matousek <tomas.matou...@microsoft.com> > wrote: >> Just to be clear, this works: >> >> >> >> public class App { public string Name = "hello"; } >> >> >> >> var engine = IronRuby.CreateEngine(); >> >> var scope = engine.CreateScope(); >> >> scope.SetVariable("my_app_object", new App()); >> >> >> >> engine.Execute(@" >> >> def do_stuff >> my_app_object.name >> end >> >> ", scope); >> >> >> >> var execute = scope.GetVariable<Func<string>>("do_stuff"); >> >> Console.WriteLine(execute()); >> >> >> >> Tomas >> >> >> >> >> >> From: ironruby-core-boun...@rubyforge.org >> [mailto:ironruby-core-boun...@rubyforge.org] On Behalf Of Tomas >> Matousek >> Sent: Friday, November 06, 2009 7:53 PM >> >> To: ironruby-core@rubyforge.org >> Subject: Re: [Ironruby-core] ironruby hosting as scripting engine >> >> >> >> It actually works. Any method call on top-level "self" object will >> fall back to the scope (we inject method_missing to the top-level >> object if the code is executed from hosting code). >> >> It is implemented like instance_eval against the scope. >> >> >> >> Tomas >> >> >> >> From: ironruby-core-boun...@rubyforge.org >> [mailto:ironruby-core-boun...@rubyforge.org] On Behalf Of Jimmy >> Schementi >> Sent: Friday, November 06, 2009 4:48 PM >> To: ironruby-core@rubyforge.org >> Subject: Re: [Ironruby-core] ironruby hosting as scripting engine >> >> >> >> Tomas, >> >> >> >> Will "my_app_object" be accessible in the do_stuff method? I think >> not, since our scope variables are just local ruby variables, right? >> What he'd really want is to define a method called "my_app_object" on >> the Script class, so then his ".s" files can use "my_app_object" anywhere, >> like: >> >> >> >> engine Execute(@"class Script >> >> def my_app_object >> >> # do whatever you need to get the app object >> >> end >> >> >> >> <script1.s content> >> >> end") >> >> >> >> But I still don't like wrapping the user script in a class like that. >> The preferred way would be to create an instance of script and call >> instance_eval with the contents of the script1.s file: >> >> >> >> ~js >> >> >> >> From: ironruby-core-boun...@rubyforge.org >> [mailto:ironruby-core-boun...@rubyforge.org] On Behalf Of Tomas >> Matousek >> Sent: Friday, November 06, 2009 4:09 PM >> To: ironruby-core@rubyforge.org >> Subject: Re: [Ironruby-core] ironruby hosting as scripting engine >> >> >> >> A better way of exposing application objects to the scripts and vice >> versa is to use ScriptScope: >> >> >> >> var engine = IronRuby.CreateEngine(); >> >> var scope = engine.CreateScope(); >> >> scope.SetVariable("my_app_object", new App()); >> >> >> >> engine.Execute(@" >> >> my_app_object.declare 'version 1' >> >> def do_stuff >> 'success' >> end >> >> ", scope); >> >> >> >> var execute = scope.GetVariable<Func<string>>("do_stuff"); >> >> Console.WriteLine(execute()); >> >> >> >> Top level Ruby methods defined in the executed script are published to >> the scope so that the host can read it via GetVariable method. Also, >> Ruby methods are convertible to delegates, so you can get the variable >> as Func<string> and call the delegate later. >> >> >> >> Tomas >> >> >> >> >> >> From: ironruby-core-boun...@rubyforge.org >> [mailto:ironruby-core-boun...@rubyforge.org] On Behalf Of Dotan N. >> Sent: Friday, November 06, 2009 1:54 PM >> To: ironruby-core@rubyforge.org >> Subject: Re: [Ironruby-core] ironruby hosting as scripting engine >> >> >> >> Kevin, >> Yep i also needed to support input output but it all goes through the >> "$script" variable back to the backing C# object. for now, it makes it >> easier to have events and debugging. all in all the end result is that >> i provide an "API" exposed through $script. >> >> Jimmy, >> Thanks, I clearly overlooked that. >> >> On Fri, Nov 6, 2009 at 11:16 PM, Jimmy Schementi >> <jimmy.scheme...@microsoft.com> wrote: >> >> Your solution sounds fine. To answer you first question though: >> engine.Execute("class Script; end") will always give you nil; classes >> return nil when defined: >> >> >> >>>>> class Foo >> >> ... end >> >> => nil >> >> >> >> You'll have to do this to get the actual class object: >> >> >> >> engine.Execute("class Script; end; Script") >> >> >> >> ~Jimmy >> >> >> >> From: ironruby-core-boun...@rubyforge.org >> [mailto:ironruby-core-boun...@rubyforge.org] On Behalf Of Dotan N. >> Sent: Friday, November 06, 2009 11:17 AM >> To: ironruby-core@rubyforge.org >> Subject: [Ironruby-core] ironruby hosting as scripting engine >> >> >> >> Hi guys sorry for the lengthy mail but i believe this is interesting >> since i've found a solution that someone else could use. >> >> just had a session of trying to embed IR in my application. >> I'm defining a user script which contains some initialization code and >> a special worker function 'execute' >> >> this is the "user script": >> >> script1.s -------------------------------------------------------- >> $script.declare "version 1" >> >> def execute >> $script.report "success" >> end >> -------------------------------------------------------- >> >> >> what i'm doing is setting "script" as a global variable that is a >> gateway to my application. >> I've tried this way first: >> >> wrapping script1.s with "class Script <scriopt1.s content> end" >> and doing Engine.Execute on it. >> >> I expected to get a RubyObject as a result, which is the Script class. >> >> then with the RubyObject i would do >> ObjectOperations.Invoke("execute"); when ever i wish. >> >> I had 2 problems: >> >> 1. the RubyObject was always null. any idea why? >> 2. I couldn't really define a global variable properly (i've used the >> $a = a trick from the forum) >> >> >> >> eventually i've realized this solution: >> 1. set global variable via RubyContext.DefineGlobalVariable 2. i run >> everything on my script scope and Execute script1.s directly given a >> ScriptScope 3. do InvokeMember on the ScriptScope itself >> >> >> from googling i've noticed the solution changed a lot along time. >> so what is the proper way to do it? >> >> >> Thanks! >> >> _______________________________________________ >> Ironruby-core mailing list >> Ironruby-core@rubyforge.org >> http://rubyforge.org/mailman/listinfo/ironruby-core >> >> >> >> _______________________________________________ >> Ironruby-core mailing list >> Ironruby-core@rubyforge.org >> http://rubyforge.org/mailman/listinfo/ironruby-core >> >> > _______________________________________________ > Ironruby-core mailing list > Ironruby-core@rubyforge.org > http://rubyforge.org/mailman/listinfo/ironruby-core > > _______________________________________________ > Ironruby-core mailing list > Ironruby-core@rubyforge.org > http://rubyforge.org/mailman/listinfo/ironruby-core > _______________________________________________ Ironruby-core mailing list Ironruby-core@rubyforge.org http://rubyforge.org/mailman/listinfo/ironruby-core
