Thank you for responses.
The last two arguments do not resolve the doubt, however:
1. symbols also implement IFn:
(require 'clojure.edn)
('a (clojure.edn/read-string "{a 1 b 2}"))
=> 1
2. EDN does not specify any evaluation model, so how can a symbol designate
something "in isolation"?
For example, clojure.core/conj in the context of EDN does not designate
a function - EDN is not Clojure.
>
One way I can imagine symbols to designate something is by agreement of
particular EDN config file format.
Maybe a user can specify {:angle PI}, and this specific config file
format declares that the PI symbol
can be used to refer the 3.14... constant.
Still, I'm not sure such interpretation implies symbols in map keys
should be resolved by the config file parser
to some values....
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