Am Mittwoch, 15. Oktober 2014 18:34:39 UTC+2 schrieb Daniel James:
>
> [...]
> In my proposal above, nothing is changing about the fact that transducers
> transform reducing functions to new reducing functions. The simple change
> is to use the reducing function that is produced by a transformation stack
> to seed the initial value of the reduction, rather than using the input
> reducing function (or explicit input seed value, in the second arity of
> transduce).
>
>
This is a change I am interested in as well. Just yesterday I was bitten
by the fact that in
the 3-arity case the init value of transduce defaults to (f) instead of ((xform
f)):
While experimenting I was trying to splice a group-by-style transducer into
an existing
(comp ...) chain. This step works on a map valued accumulator, and needs
an initial value
of {} irregardless of what (f) would provide.
-- Michael
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