28 lines
1.2 KiB
Clojure
28 lines
1.2 KiB
Clojure
(ns re-frame.loggers
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(:require
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[clojure.set :refer [difference]]))
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;; "loggers" holds the current set of logging functions.
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;; By default, re-frame uses the functions provided by js/console.
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;; Use set-loggers! to change these defaults.
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(def ^:private loggers
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(atom {:log (js/console.log.bind js/console)
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:warn (js/console.warn.bind js/console)
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:error (js/console.error.bind js/console)
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:group (if (.-group js/console) (js/console.group.bind js/console) (js/console.log.bind js/console)) ;; console.group does not exist < IE 11
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:groupEnd (if (.-groupEnd js/console) (js/console.groupEnd.bind js/console) #())})) ;; console.groupEnd does not exist < IE 11
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(defn console
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[level & args]
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(assert (contains? @loggers level) (str "re-frame: log called with unknown level: " level))
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(apply (level @loggers) args))
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(defn set-loggers!
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"Change the set (or a subset) of logging functions used by re-frame.
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'new-loggers' should be a map which looks like default-loggers"
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[new-loggers]
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(assert (empty? (difference (set (keys new-loggers)) (-> @loggers keys set))) "Unknown keys in new-loggers")
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(swap! loggers merge new-loggers))
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