Hi,
just for practicing Clojure's macros I wrote the following
create-java-list macro.
(defmacro create-java-list
[& forms]
(let [prefixfn (fn [obj form] (cons (symbol ".") (cons obj form)))
lname (gensym)]
`(let [~lname (java.util.ArrayList.)]
~@(map (partial prefixfn lname) forms)
~lname)))
The idea is that you can write
(let [javalist (create-java-list
(add "1")
(add "2"))]
(prn javalist))
instead of
(let [javalist (java.util.ArrayList.)]
(.add javalist "1")
(.add javalist "2")
(prn javalist))
Is it possible to create the macro without the (gensym) call? I wasn't
able to use something like lname#.
Cheers,
Roman
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