Hey all,
I'm writing a function called barr= that looks just like clojure.core/=,
but uses java.util.Arrays/equals instead of equiv. To speed up the function
I tried adding type hints to both the function definition and the
2-argument inlined version. Type hinting the inline function threw an
exception that makes me think the compiler is interpreting Here's the gist:
https://gist.github.com/1551640
Type hints on the function definition work great:
(defn barr=
([x] true)
([^bytes x ^bytes y]
(java.util.Arrays/equals x y))
([x y & more]
(if (barr= x y)
(if (next more)
(recur y (first more) (next more))
(barr= y (first more)))
false)))
But hinting the inline version causes an exception:
(defn barr=
{:inline-arities #{2}
:inline (fn [x y] `(let [^bytes x# ~x
^bytes y# ~y]
(java.util.Arrays/equals x# y#)))}
([x] true)
([^bytes x ^bytes y]
(java.util.Arrays/equals x y))
([x y & more]
(if (barr= x y)
(if (next more)
(recur y (first more) (next more))
(barr= y (first more)))
false)))
;; CompilerException java.lang.IllegalArgumentException: Unable to resolve
classname:
;; clojure.core/bytes, compiling:(NO_SOURCE_PATH:54)
The compiler seems to be interpreting this type hint as a var. Are type
hints not allowed inside of inline definitions for some reason?
Cheers,
--
Sam Ritchie, Twitter Inc
703.662.1337
@sritchie09
(Too brief? Here's why! http://emailcharter.org)
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