You haven't set the writeLimit by just copying PositionableStream
though, have you?
Perhaps:
ReadWriteStream >> on: aCollection
super on: aCollection.
readLimit := aCollection size.
would be a better idea?
Intervals can't be stored into by the way, so using a RWStream on one
doesn't make much sense ;)
here's a more accurate example for RWStream:
rws := ReadWriteStream on: (1 to: 20) asArray.
[rws atEnd] whileFalse: [rws peek odd ifFalse: [rws nextPut: 0]
ifTrue: [rws next]]
And the collection will contain #(1 0 3 0 5 0 7 0 9 0 11 0 13 0 15 0
17 0 19 0), as expected.
Cheers,
Henry
On Jun 30, 2009, at 3:00 46PM, Alexandre Bergel wrote:
>> Put the readLimit at 0 make sense for a WriteStream ( with witch
>> your not supposed to read ) but when you create a ReadWriteStream on
>> a collection you would be able to read what is already in the
>> collection, no?
>> I wonder why #on: has not been overriden in the instance side of
>> ReadWriteStream ?
>> Maybe it's not a good idea to create a ReadWriteStream with a
>> collection that already includes elements ?
>
>
> It looks like on: must be overridden in ReadWriteStream.
> With ReadStream I have:
> (ReadStream on: (1 to: 20)) next => 1
> (ReadStream on: (1 to: 20)) next; next => 2
>
> However, with ReadWriteStream, nil is returned, for the very problem
> you mentioned:
> (ReadWriteStream on: (1 to: 20)) next => nil
>
> If I cut and paste PositionnableStream>>on: in ReadWriteStream, then I
> have the behavior I expected:
> (ReadWriteStream on: (1 to: 20)) next => 1
> (ReadWriteStream on: (1 to: 20)) next; next => 2
>
> Cheers,
> Alexandre
>
> --
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> Alexandre Bergel http://www.bergel.eu
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