[IronPython] CallTargetX delegates

[Dino Viehland]

To use Func you just need to do:

import clr
clr.AddReference('System.Core')
from System import Func
Func[object, object](targetCallableHere)

This is equivalent to CallTarget1.  You can add more "object, " or you can replace object with some other type.

From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Brian Curtin
Sent: Monday, September 14, 2009 10:53 AM
To: Discussion of IronPython
Subject: Re: [IronPython] CallTargetX delegates

How would someone replace CallTargetX with Func<...> within a script? For example, how would you change the Invoke calls in onChanged and onRenamed here: http://www.ironpython.info/index.php/Invoking_onto_the_GUI_%28Control%29_Thread

I've never seen how to use Func within an IP script, just within C#.

On Wed, Sep 2, 2009 at 04:59, Davy Mitchell <daftspaniel at gmail.com<mailto:daftspaniel at gmail.com>> wrote:
Could someone pop an example of this on http://www.ironpython.info?
Sounds like it could be a common 'gotcha' especially for newbies
running old example code.

Cheers,
Davy

On Wed, Sep 2, 2009 at 6:38 AM, David Escobar<davidescobar at ieee.org<mailto:davidescobar at ieee.org>> wrote:
> Ok cool. I've used Func<> from C# before. That did the trick. Thanks.
>
>
> On Tue, Sep 1, 2009 at 6:19 PM, Dino Viehland <dinov at microsoft.com<mailto:dinov at microsoft.com>> wrote:
>>
>> Yes.  CallTarget's were really a part of IronPython's internal calling
>> convention for used defined functions.  We kept CallTarget0 around because
>> we knew lots of users had come to depend on that one when they needed a
>> delegate type.  But we removed all the others and switched to using Func<...>
>> internally.  Ideally you can switch to using Func<> as well.
>>
>>
>>
>> From: users-bounces at lists.ironpython.com<mailto:users-bounces at lists.ironpython.com>
>> [mailto:users-bounces at lists.ironpython.com<mailto:users-bounces at lists.ironpython.com>] On Behalf Of David Escobar
>> Sent: Tuesday, September 01, 2009 5:41 PM
>> To: Discussion of IronPython
>> Subject: [IronPython] CallTargetX delegates
>>
>>
>>
>> In IronPython 2.6 beta 2, did the CallTargetX delegates get moved to
>> another module or were they simply removed altogether? The only delegate in
>> IronPython.Compiler is CallTarget0. I checked IronPython 2.0.2 and it has up
>> to CallTarget16.
>
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