blob: f9cfc7c5fd5eccbb64ec7ffb9cb92f502c2b37cf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
;;; fnmap.clj: maps that dispatch get/assoc to functions
;; Copyright (c) Stuart Sierra, 2008. 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 #^{:author "Stuart Sierra"
:doc "Maps that dispatch get/assoc to user-defined functions.
Note: requires AOT-compilation"}
clojure.contrib.fnmap
(:require clojure.contrib.fnmap.PersistentFnMap))
(defn fnmap
"Creates a fnmap, or functional map. A fnmap behaves like an
ordinary Clojure map, except that calls to get and assoc are
filtered through user-defined getter and setter functions, which
operate on an internal map.
(getter m key) should return a value for key.
(setter m key value) should assoc key with value and return a new
map for m.
All other map operations are passed through to the internal map."
([getter setter] (clojure.contrib.fnmap.PersistentFnMap/create getter setter))
([getter setter & keyvals]
(apply assoc
(clojure.contrib.fnmap.PersistentFnMap/create getter setter)
keyvals)))
|
