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types.clj
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types.clj
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; Copyright (c) Alan Thompson. All rights reserved.
; The use and distribution terms for this software are covered by the Eclipse Public
; License 1.0 (http://opensource.org/licenses/eclipse-1.0.php) which can be found in the
; file epl-v10.html at the root of this distribution. By using this software in any
; fashion, you are agreeing to be bound by the terms of this license.
; You must not remove this notice, or any other, from this software.
(ns tupelo.types
"Type conversion and detection."
(:refer-clojure :exclude [integer? float? double?])
(:require
[clojure.string :as str]
[schema.core :as s]))
; An instance of the java.lang.Class<XXXX[]> (e.g. java.lang.Class<Byte[]>).
(def ^:private class-boolean-array (.getClass (boolean-array 0)))
(def ^:private class-byte-array (.getClass (byte-array 0)))
(def ^:private class-char-array (.getClass (char-array 0)))
(def ^:private class-double-array (.getClass (double-array 0)))
(def ^:private class-float-array (.getClass (float-array 0)))
(def ^:private class-int-array (.getClass (int-array 0)))
(def ^:private class-long-array (.getClass (long-array 0)))
(def ^:private class-object-array (.getClass (object-array 0)))
(def ^:private class-short-array (.getClass (short-array 0)))
; As of Clojure 1.9.0-alpha5, boolean? is native to clojure
#_(defn ^{:deprecated "1.9.0-alpha5" } boolean?
"Returns true is the arg is a Boolean (true or false). Else returns false."
[arg]
(or (= true arg) (= false arg)))
; #todo change to using `instance?`
(defn boolean-array?
"Returns true is the arg is a boolean array, else false."
[arg]
(= class-boolean-array (.getClass arg)))
(defn byte-array?
"Returns true is the arg is a byte array, else false."
[arg]
(= class-byte-array (.getClass arg)))
(defn char-array?
"Returns true is the arg is a char array, else false."
[arg]
(= class-char-array (.getClass arg)))
(defn double-array?
"Returns true is the arg is a double array, else false."
[arg]
(= class-double-array (.getClass arg)))
(defn float-array?
"Returns true is the arg is a float array, else false."
[arg]
(= class-float-array (.getClass arg)))
(defn int-array?
"Returns true is the arg is a int array, else false."
[arg]
(= class-int-array (.getClass arg)))
(defn long-array?
"Returns true is the arg is a long array, else false."
[arg]
(= class-long-array (.getClass arg)))
(defn object-array?
"Returns true is the arg is a object array, else false."
[arg]
(= class-object-array (.getClass arg)))
(defn short-array?
"Returns true is the arg is a short array, else false."
[arg]
(= class-short-array (.getClass arg)))
;-----------------------------------------------------------------------------
(defn byte?
"Returns true is the arg is a Byte, else false."
[arg]
(instance? java.lang.Byte arg))
(defn short?
"Returns true is the arg is a Short, else false."
[arg]
(instance? java.lang.Short arg))
(defn integer?
"Returns true is the arg is a Integer, else false."
[arg]
(instance? java.lang.Integer arg))
(defn long?
"Returns true is the arg is a Long, else false."
[arg]
(instance? java.lang.Long arg))
(defn float?
"Returns true is the arg is a Float, else false."
[arg]
(instance? java.lang.Float arg))
(defn double?
"Returns true is the arg is a Double, else false."
[arg]
(instance? java.lang.Double arg))
(defn character?
"Returns true is the arg is a Character, else false."
[arg]
(instance? java.lang.Character arg))
;---------------------------------------------------------------------------------------------------
(def BYTE_UNSIGNED_MIN_VALUE 0)
(def BYTE_UNSIGNED_MAX_VALUE (-> (biginteger 2)
(.pow 8)
(long)
(dec)))
(def SHORT_UNSIGNED_MIN_VALUE 0)
(def SHORT_UNSIGNED_MAX_VALUE (-> (biginteger 2)
(.pow 16)
(long)
(dec)))
(def INTEGER_UNSIGNED_MIN_VALUE 0)
(def INTEGER_UNSIGNED_MAX_VALUE (-> (biginteger 2)
(.pow 32)
(long)
(dec)))
(def LONG_UNSIGNED_MIN_VALUE 0)
(def LONG_UNSIGNED_MAX_VALUE (-> (biginteger 2)
(.pow 64)
(.subtract (biginteger 1))))
(defrecord ^:no-doc IntervalClosed ; #todo report defrecord "resolve" to Cursive
[lower-bound upper-bound]) ; #todo report to Cursive
(s/defn ^:no-doc within-interval-closed? :- s/Bool
"Returns true if val fits within an IntervalClosed."
[ic :- IntervalClosed
val :- s/Num]
(<= (:lower-bound ic) val (:upper-bound ic)))
(def ^:no-doc interval-closed-byte (->IntervalClosed Byte/MIN_VALUE Byte/MAX_VALUE)) ; #todo "resolve" report to Cursive
(def ^:no-doc interval-closed-byte-unsigned (->IntervalClosed BYTE_UNSIGNED_MIN_VALUE BYTE_UNSIGNED_MAX_VALUE))
(def ^:no-doc interval-closed-short (->IntervalClosed Short/MIN_VALUE Short/MAX_VALUE))
(def ^:no-doc interval-closed-short-unsigned (->IntervalClosed SHORT_UNSIGNED_MIN_VALUE SHORT_UNSIGNED_MAX_VALUE))
(def ^:no-doc interval-closed-integer (->IntervalClosed Integer/MIN_VALUE Integer/MAX_VALUE))
(def ^:no-doc interval-closed-integer-unsigned (->IntervalClosed INTEGER_UNSIGNED_MIN_VALUE INTEGER_UNSIGNED_MAX_VALUE))
(def ^:no-doc interval-closed-long (->IntervalClosed Long/MIN_VALUE Long/MAX_VALUE))
(def ^:no-doc interval-closed-long-unsigned (->IntervalClosed LONG_UNSIGNED_MIN_VALUE LONG_UNSIGNED_MAX_VALUE))
(s/defn within-bounds-byte? :- s/Bool
"Returns true if val fits within legal range for a byte (signed)."
[val :- s/Int]
(within-interval-closed? interval-closed-byte val))
(s/defn within-bounds-byte-unsigned? :- s/Bool
"Returns true if val fits within legal range for a byte (unsigned)."
[val :- s/Int]
(within-interval-closed? interval-closed-byte-unsigned val))
(s/defn within-bounds-short? :- s/Bool
"Returns true if val fits within legal range for a short (signed)."
[val :- s/Int]
(within-interval-closed? interval-closed-short val))
(s/defn within-bounds-short-unsigned? :- s/Bool
"Returns true if val fits within legal range for a short (unsigned)."
[val :- s/Int]
(within-interval-closed? interval-closed-short-unsigned val))
(s/defn within-bounds-integer? :- s/Bool
"Returns true if val fits within legal range for a integer (signed)."
[val :- s/Int]
(within-interval-closed? interval-closed-integer val))
(s/defn within-bounds-integer-unsigned? :- s/Bool
"Returns true if val fits within legal range for a integer (unsigned)."
[val :- s/Int]
(within-interval-closed? interval-closed-integer-unsigned val))
(s/defn within-bounds-long? :- s/Bool
"Returns true if val fits within legal range for a long (signed)."
[val :- s/Int]
(within-interval-closed? interval-closed-long val))
(s/defn within-bounds-long-unsigned? :- s/Bool
"Returns true if val fits within legal range for a long (unsigned)."
[val :- s/Int]
(within-interval-closed? interval-closed-long-unsigned val))