clowg

A Clojure library for generating Clojure wrappers around Java

Installing

• Leiningen/Boot

[clowg "0.1.2"]

Usage

(require '[clowg.core :refer [get-code]])

Wrap String class

(get-code String)
=>
"(defn
  getChars
  ([^java.lang.String this a b c d]
   (.getChars this (int a) (int b) (char-array c) (int d))))
 (defn trim ([^java.lang.String this] (.trim this)))
 (defn
  toLowerCase
  ([^java.lang.String this] (.toLowerCase this))
  ([^java.lang.String this ^java.util.Locale a] (.toLowerCase this a)))
 (defn
  replaceAll
  ([^java.lang.String this ^java.lang.String a ^java.lang.String b]
   (.replaceAll this a b)))
 (defn
  contains
  ([^java.lang.String this ^java.lang.CharSequence a]
   (.contains this a)))
 (defn
  endsWith
  ([^java.lang.String this ^java.lang.String a] (.endsWith this a)))
 (defn
  replaceFirst
  ([^java.lang.String this ^java.lang.String a ^java.lang.String b]
   (.replaceFirst this a b)))
 (defn toString ([^java.lang.String this] (.toString this)))
 (defn
  subSequence
  ([^java.lang.String this a b] (.subSequence this (int a) (int b))))
 (defn
  substring
  ([^java.lang.String this a] (.substring this (int a)))
  ([^java.lang.String this a b] (.substring this (int a) (int b))))
 (defn
  equalsIgnoreCase
  ([^java.lang.String this ^java.lang.String a]
   (.equalsIgnoreCase this a)))
 (defn toCharArray ([^java.lang.String this] (.toCharArray this)))
 (defn charAt ([^java.lang.String this a] (.charAt this (int a))))
 (defn
  split
  ([^java.lang.String this ^java.lang.String a] (.split this a))
  ([^java.lang.String this ^java.lang.String a b]
   (.split this a (int b))))
 (defn
  toUpperCase
  ([^java.lang.String this] (.toUpperCase this))
  ([^java.lang.String this ^java.util.Locale a] (.toUpperCase this a)))
 (defn
  concat
  ([^java.lang.String this ^java.lang.String a] (.concat this a)))
 (defn
  offsetByCodePoints
  ([^java.lang.String this a b]
   (.offsetByCodePoints this (int a) (int b))))
 (defn length ([^java.lang.String this] (.length this)))
 (defn
  regionMatches
  ([^java.lang.String this a ^java.lang.String b c d]
   (.regionMatches this (int a) b (int c) (int d)))
  ([^java.lang.String this a b ^java.lang.String c d e]
   (.regionMatches this (boolean a) (int b) c (int d) (int e))))
 (defn
  matches
  ([^java.lang.String this ^java.lang.String a] (.matches this a)))
 (defn intern ([^java.lang.String this] (.intern this)))
 (defn
  startsWith
  ([^java.lang.String this ^java.lang.String a] (.startsWith this a))
  ([^java.lang.String this ^java.lang.String a b]
   (.startsWith this a (int b))))
 (defn hashCode ([^java.lang.String this] (.hashCode this)))
 (defn isEmpty ([^java.lang.String this] (.isEmpty this)))
 (defn
  codePointCount
  ([^java.lang.String this a b] (.codePointCount this (int a) (int b))))
 (defn
  codePointBefore
  ([^java.lang.String this a] (.codePointBefore this (int a))))
 (defn
  equals
  ([^java.lang.String this ^java.lang.Object a] (.equals this a)))
 (defn
  compareToIgnoreCase
  ([^java.lang.String this ^java.lang.String a]
   (.compareToIgnoreCase this a)))
 (defn
  codePointAt
  ([^java.lang.String this a] (.codePointAt this (int a))))
 "

Or if you want to refer to a specific instance all the time (omits this)

(get-code String 'the-string)
=>
"(defn
  getChars
  ([a b c d]
   (.getChars the-string (int a) (int b) (char-array c) (int d))))
 (defn trim ([] (.trim the-string)))
 (defn
  toLowerCase
  ([] (.toLowerCase the-string))
  ([^java.util.Locale a] (.toLowerCase the-string a)))
 (defn
  replaceAll
  ([^java.lang.String a ^java.lang.String b]
   (.replaceAll the-string a b)))
 (defn contains ([^java.lang.CharSequence a] (.contains the-string a)))
 (defn endsWith ([^java.lang.String a] (.endsWith the-string a)))
 (defn
  replaceFirst
  ([^java.lang.String a ^java.lang.String b]
   (.replaceFirst the-string a b)))
 (defn toString ([] (.toString the-string)))
 (defn subSequence ([a b] (.subSequence the-string (int a) (int b))))
 (defn
  substring
  ([a] (.substring the-string (int a)))
  ([a b] (.substring the-string (int a) (int b))))
 (defn
  equalsIgnoreCase
  ([^java.lang.String a] (.equalsIgnoreCase the-string a)))
 (defn toCharArray ([] (.toCharArray the-string)))
 (defn charAt ([a] (.charAt the-string (int a))))
 (defn
  split
  ([^java.lang.String a] (.split the-string a))
  ([^java.lang.String a b] (.split the-string a (int b))))
 (defn
  toUpperCase
  ([] (.toUpperCase the-string))
  ([^java.util.Locale a] (.toUpperCase the-string a)))
 (defn concat ([^java.lang.String a] (.concat the-string a)))
 (defn
  offsetByCodePoints
  ([a b] (.offsetByCodePoints the-string (int a) (int b))))
 (defn length ([] (.length the-string)))
 (defn
  regionMatches
  ([a ^java.lang.String b c d]
   (.regionMatches the-string (int a) b (int c) (int d)))
  ([a b ^java.lang.String c d e]
   (.regionMatches the-string (boolean a) (int b) c (int d) (int e))))
 (defn matches ([^java.lang.String a] (.matches the-string a)))
 (defn intern ([] (.intern the-string)))
 (defn
  startsWith
  ([^java.lang.String a] (.startsWith the-string a))
  ([^java.lang.String a b] (.startsWith the-string a (int b))))
 (defn hashCode ([] (.hashCode the-string)))
 (defn isEmpty ([] (.isEmpty the-string)))
 (defn
  codePointCount
  ([a b] (.codePointCount the-string (int a) (int b))))
 (defn codePointBefore ([a] (.codePointBefore the-string (int a))))
 (defn equals ([^java.lang.Object a] (.equals the-string a)))
 (defn
  compareToIgnoreCase
  ([^java.lang.String a] (.compareToIgnoreCase the-string a)))
 (defn codePointAt ([a] (.codePointAt the-string (int a))))
 "

If you want the actual code generated, use make-functions instead of get-code

(require '[clowg.core :refer [make-functions]])

(make-functions Integer)
=>
((defn shortValue ([^java.lang.Integer this] (.shortValue this)))
 (defn doubleValue ([^java.lang.Integer this] (.doubleValue this)))
 (defn longValue ([^java.lang.Integer this] (.longValue this)))
 (defn byteValue ([^java.lang.Integer this] (.byteValue this)))
 (defn toString ([^java.lang.Integer this] (.toString this)))
 (defn floatValue ([^java.lang.Integer this] (.floatValue this)))
 (defn intValue ([^java.lang.Integer this] (.intValue this)))
 (defn hashCode ([^java.lang.Integer this] (.hashCode this)))
 (defn equals ([^java.lang.Integer this ^java.lang.Object a] (.equals this a))))

TODO

• Generate static methods
• Generate field accessors
• Add support for Java method overloads with same arity (they're skipped for now)

License

MIT License

Copyright (c) 2020 Kadir Malak

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.