<div dir="ltr">On Mon, Sep 22, 2008 at 6:50 PM, Dino Viehland <span dir="ltr"><<a href="mailto:dinov@microsoft.com">dinov@microsoft.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p><span style="font-size: 11pt; color: rgb(31, 73, 125);">FYI this is the same as bug #18345 - <a href="http://www.codeplex.com/IronPython/WorkItem/View.aspx?WorkItemId=18345" target="_blank">http://www.codeplex.com/IronPython/WorkItem/View.aspx?WorkItemId=18345</a></span></p>
<p><span style="font-size: 11pt; color: rgb(31, 73, 125);"></span></p></div></div></blockquote><div>ok. I'll go over active tickets so I have a better picture of what to expect<br>
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<p><span style="font-size: 11pt; color: rgb(31, 73, 125);">We'll fix this for the RC.</span></p></div></div></blockquote><div>great.<br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> <a href="mailto:users-bounces@lists.ironpython.com" target="_blank">users-bounces@lists.ironpython.com</a>
[mailto:<a href="mailto:users-bounces@lists.ironpython.com" target="_blank">users-bounces@lists.ironpython.com</a>] <b>On Behalf Of </b>Ronnie Maor<br>
<b>Sent:</b> Monday, September 22, 2008 6:39 AM<br>
<b>To:</b> Discussion of IronPython<br>
<b>Subject:</b> Re: [IronPython] IP2b5 - error in calling bound method from C#?</span></p>
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<p style="margin-bottom: 12pt;">2nd attempt at defining the
problem:<br>
"problem assigning bound method to delegate?"<br>
that's my last try. now someone who actually has a clue needs to look at it :-)</p>
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<p>On Mon, Sep 22, 2008 at 3:29 PM, Ronnie Maor <<a href="mailto:ronnie.maor@gmail.com" target="_blank">ronnie.maor@gmail.com</a>> wrote:</p>
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<p style="margin-bottom: 12pt;">I think this is a bug and not
some silly mistake on my part...<br>
not sure exactly which flows this effects, but here is a small repro:<br>
<br>
import System.Threading<br>
<br>
def cb(state):<br>
print "CB CALLED"<br>
<br>
class Timer(object):<br>
def
__init__(self,delay,interval): <br>
def _inner_cb(state):<br>
print
"INNER CALLED"<br>
self._callback(None)<br>
f = self._callback # this is the
problematic variant<br>
#f = cb<br>
#f = _inner_cb<br>
<br>
self.timer =
System.Threading.Timer(f,None,delay,interval)<br>
<br>
def _callback(self,state): # state parameter is required as
part of TimerCallback signature. ignore it.<br>
print "CALLBACK CALLED"<br>
<br>
t = Timer(1000,0)<br>
print "Sleeping..."<br>
System.Threading.Thread.CurrentThread.Join(2000)<br>
print "Woke up"<br>
<br>
------------------ (end code)<br>
<br>
C:\IronPython\2.0\IronPython-2.0B5>ipy \data\trunk\src\Itst.Backend\tmp.py<br>
Traceback (most recent call last):<br>
File "\data\trunk\src\Itst.Backend\tmp.py", line 20, in
\data\trunk\src\Itst.Backend\tmp.py<br>
File "\data\trunk\src\Itst.Backend\tmp.py", line 15, in
__init__<br>
TypeError: Value cannot be null.<br>
Parameter name: context<br>
<br>
The code works when you change f to one of the other variants (cb or
_inner_cb).<br>
For now I'm going to use _inner_cb variant as a workaround so I can continue
porting my code and map other issues.<br>
<br>
one note if/when comparing with IPy 1.1. The overload resolution was not as
good there, so you need to change the call to Timer to:<br>
Timer_ctor = System.Threading.Timer.__new__.Overloads[(System.Threading.TimerCallback,object,int,int)]<br>
self.timer =
Timer_ctor(System.Threading.Timer,f,None,delay,interval)</p>
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<p> </p>
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