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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