On Thursday, May 28, 2015 at 6:37:56 PM UTC+10, Ruslan Prokopchuk wrote:
> fns are normal values, I guess you got strange glitch, try with the fresh
> vm/repl:
>
> (def fff ^{:a 1} (fn [] 4))
> #<[object Object]>
> => nil
>
> (meta fff)
> => {:a 1}
>
> (meta ^{:a 1} (fn [] 4))
> => {:a 1}
>
Many Thanks Ruslan!! I've got it now.
For anyone following later, here's how it can be done ...
(def fn-name
"docstring"
^{:a 1} ;; metadata to be put on the following fn
(fn [args] .....))
That results in "fn-name" binding to an fn which has metadata {:a 1}.
David Nolen has explained as follows ... "as to why we don’t actually put
runtime metadata fns on functions would degrade advanced compilation. both
dead code elimination and code splitting"
--
Mike
--
Note that posts from new members are moderated - please be patient with your
first post.
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