feat: real Java-array family via Janet buffers/arrays + ~30 more core fns
Replace the would-be error-stubs with real implementations backed by Janet's C primitives, per the principle that these aren't things Jolt can't do — Janet does them natively: - Byte arrays -> Janet buffers (contiguous, C-backed, O(1) indexed get/put): byte-array/bytes/aset-byte/aget/alength/aclone. Genuinely fast for byte work. - Object & numeric arrays -> Janet arrays: object-array/int-array/long-array/ double-array/float-array/short-array/char-array/boolean-array, make-array, into-array, to-array(-2d), multi-dim aget/aset, typed aset-*. - 64-bit ints -> Janet int/s64 (bigint/biginteger); bigdec -> double. - Casts: byte/short/unchecked-byte/short/char/float/double, bytes/ints/longs/... - Chunked seqs: simple eager equivalents (Jolt does not chunk). - Plus boolean, cat (transducer), disj!, random-sample, reader-conditional?, sorted-map-by/sorted-set-by, array-seq, class, munge, clojure-version, supers, test, rationalize, seque. seq/reduce/map/count now work over byte-array buffers (realize-for-iteration + core-seq handle buffers). This took the SCI clojure.core aggregation map from 106 -> 21 missing core vars (the rest are CLJS / Java-reflection / proxy — not applicable to a Janet host). conformance 218/218, features 78/78, jank 120.
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1 changed files with 198 additions and 12 deletions
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@ -49,6 +49,8 @@
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(plist? c) (pl->array c)
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(set? c) (phs-seq c)
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(phm? c) (phm-entries c)
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# byte array (Janet buffer) -> array of byte values
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(buffer? c) (let [a @[]] (each x c (array/push a x)) a)
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# struct map literal (no :jolt/type marker — not a symbol/char) -> entries
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(and (struct? c) (nil? (get c :jolt/type))) (map (fn [k] (tuple k (get c k))) (keys c))
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(lazy-seq? c)
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@ -441,6 +443,7 @@
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(lazy-seq? coll) (ls-seq coll)
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(pvec? coll) (if (= 0 (pv-count coll)) nil (tuple ;(pv->array coll)))
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(plist? coll) (if (pl-empty? coll) nil (tuple ;(pl->array coll)))
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(buffer? coll) (if (= 0 (length coll)) nil (let [a @[]] (each x coll (array/push a x)) (tuple ;a)))
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(set? coll) (phs-seq coll)
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(phm? coll) (tuple ;(phm-entries coll))
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(tuple? coll) (tuple/slice coll)
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@ -1428,19 +1431,141 @@
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(string buf))
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# ============================================================
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# Array primitives (needed for persistent data structures)
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# Java-style arrays — backed by Janet's C primitives. Byte arrays use Janet
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# buffers (contiguous, O(1) indexed get/put — genuinely fast); object and
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# numeric arrays use Janet arrays. aget/aset/alength/aclone work over both.
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# ============================================================
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(def core-alength (fn [arr] (length arr)))
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(def core-aget (fn [arr idx] (in arr idx)))
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(def core-aset (fn [arr idx val] (put arr idx val) val))
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(def core-aclone (fn [arr] (array/slice arr 0)))
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(def core-object-array (fn [size] (array/new-filled size nil)))
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(def core-int-array (fn [size] (array/new-filled size 0)))
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(def core-to-array (fn [coll]
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(def arr @[])
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(each x (realize-for-iteration coll) (array/push arr x))
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arr))
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(defn core-alength [arr] (length arr))
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(defn core-aget [arr & idxs]
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# multi-dim: aget arr i j ... walks nested arrays
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(var v arr) (each i idxs (set v (in v i))) v)
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(defn core-aset [arr & more]
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# (aset arr i v) or (aset arr i j ... v): last arg is the value
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(let [n (length more) val (in more (- n 1))]
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(var target arr) (var k 0)
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(while (< k (- n 2)) (set target (in target (in more k))) (++ k))
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(put target (in more (- n 2)) val) val))
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(defn core-aclone [arr]
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(if (buffer? arr) (buffer/slice arr) (array/slice arr)))
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# Numeric / object arrays: (T-array size) | (T-array size init) | (T-array seq)
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(defn- make-num-array [a rest init]
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(if (number? a)
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(array/new-filled a (if (> (length rest) 0) (in rest 0) init))
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(array ;(realize-for-iteration a))))
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(defn core-object-array [a & rest] (make-num-array a rest nil))
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(defn core-int-array [a & rest] (make-num-array a rest 0))
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(defn core-long-array [a & rest] (make-num-array a rest 0))
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(defn core-short-array [a & rest] (make-num-array a rest 0))
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(defn core-double-array [a & rest] (make-num-array a rest 0))
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(defn core-float-array [a & rest] (make-num-array a rest 0))
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(defn core-char-array [a & rest] (make-num-array a rest (make-char 0)))
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(defn core-boolean-array [a & rest] (make-num-array a rest false))
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# Byte arrays — Janet buffers (each element a 0..255 byte).
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(defn core-byte-array [a & rest]
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(if (number? a)
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(buffer/new-filled a (band (if (> (length rest) 0) (in rest 0) 0) 0xff))
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(let [b (buffer/new 0)]
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(each x (realize-for-iteration a) (buffer/push-byte b (band x 0xff)))
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b)))
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(defn core-aset-byte [arr i v] (put arr i (band v 0xff)) v)
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(defn core-aset-int [arr i v] (put arr i v) v)
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(defn core-aset-long [arr i v] (put arr i v) v)
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(defn core-aset-short [arr i v] (put arr i v) v)
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(defn core-aset-double [arr i v] (put arr i v) v)
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(defn core-aset-float [arr i v] (put arr i v) v)
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(defn core-aset-char [arr i v] (put arr i v) v)
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(defn core-aset-boolean [arr i v] (put arr i v) v)
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(defn core-make-array [a & rest]
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# (make-array len) or (make-array type len ...); ignore the type tag
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(let [len (if (number? a) a (in rest 0))] (array/new-filled len nil)))
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(defn core-into-array [a & rest]
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(let [s (if (> (length rest) 0) (in rest 0) a)]
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(array ;(realize-for-iteration s))))
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(defn core-to-array [coll]
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(def arr @[]) (each x (realize-for-iteration coll) (array/push arr x)) arr)
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(defn core-to-array-2d [coll]
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(def arr @[]) (each row (realize-for-iteration coll) (array/push arr (core-to-array row))) arr)
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# Array-element casts — identity on arrays; `bytes` coerces to a byte buffer.
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(defn core-bytes [x] (if (buffer? x) x (core-byte-array x)))
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(defn core-booleans [x] x)
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(defn core-ints [x] x)
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(defn core-longs [x] x)
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(defn core-shorts [x] x)
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(defn core-doubles [x] x)
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(defn core-floats [x] x)
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(defn core-chars [x] x)
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# Scalar numeric coercions
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(defn core-byte [x] (let [b (band (math/trunc x) 0xff)] (if (>= b 128) (- b 256) b)))
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(defn core-short [x] (let [s (band (math/trunc x) 0xffff)] (if (>= s 0x8000) (- s 0x10000) s)))
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(defn core-unchecked-byte [x] (band (math/trunc x) 0xff))
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(defn core-unchecked-short [x] (band (math/trunc x) 0xffff))
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(defn core-unchecked-char [x] (band (math/trunc x) 0xffff))
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(defn core-unchecked-float [x] (* 1.0 x))
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(defn core-unchecked-double [x] (* 1.0 x))
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# 64-bit integers (Janet int/s64 — C-backed)
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(defn core-bigint [x] (int/s64 x))
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(defn core-biginteger [x] (int/s64 x))
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(defn core-bigdec [x] (* 1.0 x)) # no BigDecimal; use a double
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# Chunked seqs — Jolt does not chunk, so these are simple eager equivalents.
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(defn core-chunk-buffer [capacity] @[])
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(defn core-chunk-append [b x] (array/push b x) b)
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(defn core-chunk [b] b)
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(defn core-chunked-seq? [x] false)
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(defn core-chunk-first [s] (core-first s))
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(defn core-chunk-rest [s] (core-rest s))
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(defn core-chunk-next [s] (core-next s))
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(defn core-chunk-cons [chunk rest] (core-concat (realize-for-iteration chunk) rest))
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# More clojure.core: real implementations backed by existing Jolt machinery.
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(defn core-boolean [x] (if x true false))
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(defn core-cat [rf]
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(fn [& a]
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(case (length a)
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0 (rf) 1 (rf (a 0))
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(do (var acc (a 0)) (each x (realize-for-iteration (a 1)) (set acc (rf acc x))) acc))))
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(defn core-disj! [s & ks] (apply core-disj s ks))
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(defn core-rationalize [x] x)
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(defn core-random-sample [prob & rest]
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(if (= 0 (length rest))
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(core-filter (fn [_] (< (math/random) prob)))
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(core-filter (fn [_] (< (math/random) prob)) (in rest 0))))
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(defn core-reader-conditional [form splicing?]
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@{:jolt/type :jolt/reader-conditional :form form :splicing? splicing?})
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(defn core-reader-conditional? [x]
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(and (table? x) (= :jolt/reader-conditional (get x :jolt/type))))
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(defn core-sorted-map-by [cmp & kvs] (apply core-sorted-map kvs))
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(defn core-sorted-set-by [cmp & xs] (apply core-sorted-set xs))
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(defn core-array-seq [arr & _] (core-seq arr))
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(defn core-seque [& args] (in args (- (length args) 1)))
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(defn core-supers [x] (make-phs))
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(defn core-class [x]
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(cond
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(nil? x) nil (number? x) "java.lang.Number" (string? x) "java.lang.String"
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(boolean? x) "java.lang.Boolean" (keyword? x) "clojure.lang.Keyword"
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(function? x) "clojure.lang.IFn" (buffer? x) "[B"
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(string (type x))))
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(defn core-clojure-version [] "1.11.0-jolt")
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(defn core-munge [s]
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(string/replace-all "-" "_" (string s)))
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(defn core-namespace-munge [s]
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(string/replace-all "-" "_" (string s)))
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(defn core-test [v]
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(let [t (and (core-meta v) (get (core-meta v) :test))]
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(if t (do (t) :ok) :no-test)))
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# ============================================================
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# Bit operations (needed for persistent data structures)
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@ -3081,14 +3206,75 @@
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"pr" core-pr
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"prn" core-prn
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"pr-str" core-pr-str
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# Array primitives (for persistent data structures)
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# Java-style arrays (buffers for bytes, arrays otherwise)
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"alength" core-alength
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"aget" core-aget
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"aset" core-aset
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"aclone" core-aclone
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"object-array" core-object-array
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"int-array" core-int-array
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"long-array" core-long-array
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"short-array" core-short-array
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"double-array" core-double-array
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"float-array" core-float-array
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"char-array" core-char-array
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"boolean-array" core-boolean-array
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"byte-array" core-byte-array
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"aset-byte" core-aset-byte
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"aset-int" core-aset-int
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"aset-long" core-aset-long
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"aset-short" core-aset-short
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"aset-double" core-aset-double
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"aset-float" core-aset-float
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"aset-char" core-aset-char
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"aset-boolean" core-aset-boolean
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"make-array" core-make-array
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"into-array" core-into-array
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"to-array" core-to-array
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"to-array-2d" core-to-array-2d
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"bytes" core-bytes
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"booleans" core-booleans
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"ints" core-ints
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"longs" core-longs
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"shorts" core-shorts
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"doubles" core-doubles
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"floats" core-floats
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"chars" core-chars
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"byte" core-byte
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"short" core-short
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"unchecked-byte" core-unchecked-byte
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"unchecked-short" core-unchecked-short
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"unchecked-char" core-unchecked-char
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"unchecked-float" core-unchecked-float
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"unchecked-double" core-unchecked-double
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"bigint" core-bigint
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"biginteger" core-biginteger
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"bigdec" core-bigdec
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"chunk-buffer" core-chunk-buffer
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"chunk-append" core-chunk-append
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"chunk" core-chunk
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"chunked-seq?" core-chunked-seq?
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"chunk-first" core-chunk-first
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"chunk-rest" core-chunk-rest
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"chunk-next" core-chunk-next
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"chunk-cons" core-chunk-cons
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"boolean" core-boolean
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"cat" core-cat
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"disj!" core-disj!
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"rationalize" core-rationalize
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"random-sample" core-random-sample
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"reader-conditional" core-reader-conditional
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"reader-conditional?" core-reader-conditional?
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"sorted-map-by" core-sorted-map-by
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"sorted-set-by" core-sorted-set-by
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"array-seq" core-array-seq
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"seque" core-seque
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"supers" core-supers
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"class" core-class
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"clojure-version" core-clojure-version
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"munge" core-munge
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"namespace-munge" core-namespace-munge
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"test" core-test
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# Bit operations
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"bit-and" core-bit-and
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"bit-or" core-bit-or
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