Make ratom macros less fancy

This commit is contained in:
Dan Holmsand 2014-01-07 20:32:00 +01:00
parent b93f48ba47
commit 176f7b885c
3 changed files with 26 additions and 34 deletions

View File

@ -1,17 +1,14 @@
(ns cloact.impl.component
(:require-macros [cloact.ratom :refer [reaction]]
[cloact.debug :refer [dbg prn]])
(:require [cloact.impl.template :as tmpl]
[cloact.impl.util :as util]
[cloact.ratom :as ratom]))
[cloact.ratom :as ratom]
[cloact.debug :refer-macros [dbg prn]]))
(def React tmpl/React)
;;; Accessors
(defn replace-state [this new-state]
;; Don't use React's replaceState, since it doesn't play well
;; with clojure maps
@ -83,10 +80,11 @@
(assert C)
(when (nil? (.-cljsRatom C))
(set! (.-cljsRatom C)
(reaction :auto-run (if tmpl/isClient
(ratom/make-reaction
#(do-render C (.-cljsRenderFn C))
:auto-run (if tmpl/isClient
#(.forceUpdate C)
identity)
(do-render C (.-cljsRenderFn C)))))
identity))))
(ratom/run (.-cljsRatom C)))
(defn custom-wrapper [key f]

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@ -1,20 +1,13 @@
(ns cloact.ratom)
(defn extract-opts [forms]
(let [opts (->> forms
(partition 2)
(take-while #(keyword? (first %)))
(apply concat))]
[opts (drop (count opts) forms)]))
(defmacro reaction [& body]
(let [[opts# main#] (extract-opts body)]
`(cloact.ratom/make-reaction
(fn [] ~@main#) ~@opts#)))
(fn [] ~@body)))
(defmacro run!
"Runs body immediately, and runs again whenever atoms deferenced in the body change. Body should side effect."
[& body]
`(let [co# (reaction :auto-run true ~@body)]
`(let [co# (cloact.ratom/make-reaction (fn [] ~@body)
:auto-run true)]
(deref co#)
co#))

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@ -78,7 +78,7 @@
"Counter auto updated")
(dispose co))
(let [!x (rv/atom 0)
!co (reaction :auto-run true (inc @!x))]
!co (rv/make-reaction #(inc @!x) :auto-run true)]
(is (= 1 @!co) "CO has correct value on first deref")
(swap! !x inc)
(is (= 2 @!co) "CO auto-updates")
@ -171,17 +171,17 @@
disposed-c (rv/atom nil)
disposed-cns (rv/atom nil)
count-b (rv/atom 0)
b (reaction
:on-dispose #(reset! disposed true)
b (rv/make-reaction (fn []
(swap! count-b inc)
(inc @a))
c (reaction
:on-dispose #(reset! disposed-c true)
(if (< @a 1) (inc @b) (dec @a)))
:on-dispose #(reset! disposed true))
c (rv/make-reaction #(if (< @a 1) (inc @b) (dec @a))
:on-dispose #(reset! disposed-c true))
res (rv/atom nil)
cns (run!
:on-dispose #(reset! disposed-cns true)
(reset! res @c))]
cns (rv/make-reaction #(reset! res @c)
:auto-run true
:on-dispose #(reset! disposed-cns true))]
@cns
(is (= @res 2))
(is (= (+ 3 runs) (running)))
(is (= @count-b 1))
@ -211,10 +211,11 @@
(deftest test-on-set
(let [runs (running)
a (rv/atom 0)
b (run!
b (rv/make-reaction #(+ 5 @a)
:auto-run true
:on-set (fn [oldv newv]
(reset! a (+ 10 newv)))
(+ 5 @a))]
(reset! a (+ 10 newv))))]
@b
(is (= 5 @b))
(reset! a 1)
(is (= 6 @b))