Re: Re: Redesigning collections

On Mon, Oct 5, 2015 at 3:15 PM, Paul Hudson <[email protected]> wrote:
> Why (apart from consistency across collection implementations) do you
> require foldRight on Iterator in the strawman? I can't think of a way of
> implementing it that doesn't require exhausting the iterator, and storing
> the result somewhere, probably as one of the other collection types.  So it'
> s not really much to do with Iterators.
>
I added some explanation. Iterators are not considered collections, so
they do not necessarily have the same operations as other collection
types. In fact, nothing is specified about what operations an iterator
should support.

 - Martin

> So it seems unlikely to be an interesting or revealing thing for any
> strawman proposal.
>
> On 5 October 2015 at 14:00, martin odersky <[email protected]> wrote:
>>
>> Correction: The full link to the proposal is here:
>>
>> https://github.com/lampepfl/dotty/issues/818
>>
>>  - Martin
>>
>> On Mon, Oct 5, 2015 at 2:59 PM, martin odersky <[email protected]>
>> wrote:
>> > A redesign of the standard library is on the roadmap for one of the
>> > next Scala versions (could be as early as 2.13). So I think now is the
>> > time to start thinking about what we want to change, in particular in
>> > what concerns collections!
>> >
>> > Collection libraries have to address at the same time many criteria;
>> > it usually makes little sense to consider individual changes in
>> > isolation. To make progress, I propose to embark on a set of strawman
>> > proposals that are of manageable size yet can illustrate key aspects
>> > of potential collection designs. More details are found here:
>> >
>> >   https://github.com/lampepfl/dotty/issues
>> >
>> > I'd be happy to see
>> >
>> >  - concrete implementations of the proposed API
>> >  - discussions how we should change or flesh out the API
>> >
>> > Cheers
>> >
>> >  - Martin
>> >
>> >
>> > --
>> > Martin Odersky
>> > EPFL
>>
>>
>>
>> --
>> Martin Odersky
>> EPFL
>>
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-- 
Martin Odersky
EPFL

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