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
