2014-07-28 21:46 GMT+02:00 Eliot Miranda <eliot.miranda at gmail.com>:

> Hi Nicolas,
>
>     Why can't you use peekLast?  Seems to me ensureEndsWith: should be
> implemented in terms of peekLast.
>
> Aloha,
> Eliot (phone)
>
> On Jul 28, 2014, at 5:05 AM, Nicolas Cellier <
> nicolas.cellier.aka.nice at gmail.com> wrote:
>
>
Yes, peekLast sounds perfect. Case of blindness?
Oh, I was looking in PositionnableStream which has peekBack... That might
explain.


>
>
> 2014-07-28 17:02 GMT+02:00 Nicolas Cellier <
> nicolas.cellier.aka.nice at gmail.com>:
>
>> Hi, I need to retrieve the last object put on a Stream (well
>> SmartRefStream does).
>> This is very much like #ensureEndsWith:
>>
>> There is back, but back leave the stream positionned before the last
>> object.
>>
>> ((ReadWriteStream on: String new) nextPutAll: 'abc'; back) -> $c
>> ((ReadWriteStream on: String new) nextPutAll: 'abc'; back; position) -> 2.
>>
>> There is peekBack, but peekBack answers the last but one...
>>
>> ((ReadWriteStream on: String new) nextPutAll: 'abc'; peekBack) -> $b.
>> ((ReadWriteStream on: String new) nextPutAll: 'abc'; peekBack; position)
>> -> 3.
>>
>> Note that neither back nor peekBack is understood by a WriteStream.
>> It requires a ReadWriteStream.
>>
>> Since peekBack is the sole sender of oldBack in trunk, I wonder who is
>> using it?
>> I ask because I'd like to change the meaning of peekBack to that of back
>> instead of oldBack.
>> Unless you have a better selector to propose?
>>
>>
> More exactly, I'd like to implement PositionnableStream>>peekBackFor:
> anObject to return a Boolean like peekFor: and it would be a good thing
> that peekBack answers the same Object.
>
>
>
>
>
>
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