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

[Dody Gunawinata]

delegate object FunctionProcess(object[] params);

scope.GetVariable<FunctionProcess> ("Process")

and modify your Python code to deal with the object[] params.

On Tue, Aug 19, 2008 at 2:12 PM, Christian Schmidt <
christian2.schmidt at gmx.de> wrote:

> 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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>>
>>
>>
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