thanks tonnes Dino.
:)
I did as you said and got it working for ArrayList class.
Now I am struggling with another issue
the problem is in the below code wherein I could return ArrayList values
with __getitem__
For other classes say 'Stack' though it wont work because it wont have
__getitem__
I think I am missing something here. May be some sort of method
invocation to GetEnumerator(), MoveNext(), Current() could help.
class Dummy(object):
def __init__(self, iterObj):
self.iterObj = iterObj
self.index = 0
def next(self):
temp = self.index
if self.index == self.iterObj.Count:
raise StopIteration
self.index = self.index + 1
return self.iterObj.__getitem__(temp)
class CliClassWrapper(object): # this is the class wrapper for
on-the-fly class generation
__slots__ = ('__cliobj__',)
def __iter__(self):
return Dummy(self) # this is where I pass the object
- Regmee
Dino Viehland wrote:
> To map these to .NET's IEnumerator/IEnumerable you just need to define
> __iter__ or __getitem__. If you define __iter__ you should return something
> that is enumerable (implements IEnumerable or has a next method which we'll
> call until it throws to stop enumeration). If you define __getitem__ we'll
> try and index from 0 to infinity and stop at an index out of range or stop
> iteration exception.
>
> You explicitly mention "say for ArrayList object" and I'm not sure what that
> means - we won't convert an arbitrary enumerable into another type such as
> ArrayList. But we will convert it one of the enumeration interfaces. When
> we pass your object out it'll be wrapped in one of our
> PythonEnumerable/PythonEnumerator/ItemEnumerable/ItemEnumerator classes.
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of amit
> Sent: Saturday, December 01, 2007 4:15 PM
> To: [email protected]
> Subject: [IronPython] mapping C# iterators to Python iterator
>
> Hi,
>
> I want to know how the "Iterators" in C# can be mapped to those in Python.
> What I tried was:
>
> say for ArrayList object
>
> def __iter__(self):
> self.index = self.Count
> return self
>
> def next(self):
> if self.index == 0:
> raise StopIteration
> self.index = self.index - 1
> return ??
>
> If I am creating python classes dynamically how would I map
> GetEnumerator() , MoveNext() , Current() , Reset()
> to python Class so as to make it iterable inside python.
>
> --Regmee
>
>
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