On 21/06/13 13:51, Cedric Greevey wrote:
(apply list the-seq) seems to work, but (list* the-seq), oddly, does not.
In most contexts, PersistentLists and seqs are interchangeable. Are
you needing to use the seq as a stack after constructing it in some
manner that produces a seq?
No, my requirement is this:
I'm extending a protocol to all major Clojure data-structures very much
in the same way conj is implemented. The protocol defines a single fn
which simply maps a transformer on whatever collection was passed in.
However, each polymorphic call should not mess with the types. It should
always return the same type and do the mapping in the most efficient
manner...
(apply list (map f the-seq)) does work but is not very efficient and I
think you will get the results reversed...
Jim
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