[IronPython] IP 2: Execute multiple expression in different scopes

[Christian Schmidt]

Hi Dody,

> scope.GetVariable<Func<int,int,int,int>> ("Process")

The problem is that I do not know the number of arguments at compile 
time but at runtime. So I need something like Func<param object[]>.

Anyway, this would only work if running on framework 3.5, which I can't 
because of the problems brought up by Fernando Correia - Func IIRC is 
only defined in .net 3.5, right?

Thanks,
Christian

> On Tue, Aug 19, 2008 at 12:09 PM, Christian Schmidt 
> <christian2.schmidt at gmx.de <mailto:christian2.schmidt at gmx.de>> wrote:
> 
>     Hi Curt,
> 
>     thanks for your answer. It's an interesting idea, to hand over the
>     items as function arguments. I was trying to add them to the
>     ScriptScope.
> 
>     But I'm still stuck with calling the function:
> 
>     ScriptScope scope =
>      ScriptRuntime.Create().GetEngine("py").CreateScope();
>     scope.Execute("from math import *");
>     scope.Execute(@"
>     def process(a, b, c):
>      return [a+b, sqrt(b*c)]
>     ");
>     object process = scope.GetVariable("process");
>     foreach(object[] row in data)
>      object[] result = process(row); // ??
> 
>     How do I call the function?
> 
>     I have some further question regarding this approach:
> 
>     1. Will the function be interpreted on each call or is it compiled?
>     2. Is the number of arguments limited? I could have up to 200 arguments.
> 
>     Meanwhile I've tried the CustomSymbolDictionary way, but couldn't
>     find any helpful tutorial.
> 
>     Thanks for your time,
> 
>     Christian
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