empathy

Pretty printed errors built over clojure.spec

Usage

Install locally from source. We're not up on Clojars yet.

There is one API function:

(empathy.api/pretty-error! spec val)

spec is a clojure.spec specification. val is a value that presumably does not conform to spec. pretty-error! will print out a human-friendly, colored error message.

You can also extend predicate errors for custom error messages:

(defmethod empathy.api/classify-error 'double?
  [pred x]
  {:type :type-error
   :expected (.getName java.lang.Double)
   :actual (.getName (.getClass x))
   :summary "a double"})

:summary inlines an English explanation into a possibly chained series of summaries describing the problem.

License

Copyright © 2016 Distributed Masonry

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.