That's an interesting idea. Maybe there's a way to build a set of Specter
navigators that operate on transients, and then use its corresponding
eqiuvalences for assoc-in, update-in, etc.
On Thu, Jun 2, 2016 at 9:01 PM, Colin Fleming <colin.mailingl...@gmail.com>
wrote:
> Have you looked at Specter? I actually don't know if it uses transients
> under the hood or not, or if you can make it do so, but it seems like a
> good fit for the data manipulation problem, at least.
>
> On 3 June 2016 at 14:43, Mark Engelberg <mark.engelb...@gmail.com> wrote:
>
>> Let's say I have an object represented by a series of nested maps:
>>
>> {:a {:b 1} :c {:d 2}}
>>
>> and now I'm going to be making a whole slew of edits to the submaps.
>>
>> To do this efficiently, I need to make all the levels of the map
>> transients, because any update to the inner map also updates the outer map:
>>
>> (transient {:a (transient {:b 1}), :c (transient {:d 2})})
>>
>> and then at the end I need to do a nested persistent! operation.
>>
>> However, there aren't good facilities for dealing with nested transients,
>> for example, there's no assoc!-in. So it's a real pain to work with.
>>
>> Has anyone dealt with this already, and developed a suite of tools for
>> working with nested transients, or other techniques for making batch
>> updates efficient for deeply nested objects?
>>
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