hmmm.... macro question:
; here's a macro that assembles many puts. It serves no purpose to me
(and doesn't even make sense in its current form). It's just something
I hit playing around and learning macros.
(defmacro doto-putter [x y xs]
`(doto (java.util.HashMap.)
(.put ~x ~y)
~@(for [[k v] xs]`(.put ~k ~v))))
user=> (doto-putter "c" 3 {"a" 1 "b" 2})
#<HashMap {b=2, c=3, a=1}>
however:
=>(defn omg [x y xs](doto-putter x y xs))
CompilerException java.lang.IllegalArgumentException: Don't know how
to create ISeq from: clojure.lang.Symbol, compiling:(NO_SOURCE_PATH:2)
I'm thinking the issue seems to be that it's not resolving xs because
this works:
(defmacro doto-putter [x y]
`(doto (java.util.HashMap.)
(.put ~x ~y)
~@(for [[k v]{"a" 1 "b" 2}]`(.put ~k ~v))))
user=> (defn omg [x y](doto-putter x y))
#'user/omg
user=>(omg "c" 3)
#<HashMap {b=2, c=3, a=1}>
what am I missing? None of my other macros have this problem.
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