Dave Sann <daves...@gmail.com> writes:
> On transients:
> At the moment, I disagree - I think that there are some situations
> where *strictly contained* mutability can make a solution simpler as
> well as possibly more efficient. I offer no proof :)
You might be right or not, but Stephen is completely right that you
won't benefit from *transients* with respect to conciseness/simplicity.
It'll only change your code's shape from
(loop [foo [], ...]
(if (seq ...)
(recur (conj foo ...))
foo))
to
(loop [foo (transient []), ...]
(if (seq ...)
(recur (conj! foo ...))
(persistent foo)))
I.e., you can't "bash them in-place" but still have to use the return
value of updating function calls. And the set of functions on transient
collections is much narrower than the set of functions on persistent
collections. So it's really only a performance optimization.
Bye,
Tassilo
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